Receiver-side assistance information using multiple uplink transmit opportunities

Abstract

This application provides systems, methods, and apparatus for sharing a Channel Occupancy Time (COT) initiated by a User Equipment (UE) with a Base Station (BS) via transmitting Receiver-Side Assistance Information on an uplink shared channel in an unlicensed radio frequency spectrum band. In some embodiments, the UE may perform an Idle Channel Assessment (CCA) prior to an uplink transmission opportunity, and if the CCA is successful, transmit Receiver-Side Assistance Information on the uplink shared channel to share the COT with the BS. Multiple uplink transmission opportunities may be indicated to the UE for transmitting Receiver-Side Assistance Information. In some instances, the uplink transmission opportunity may be a configured, permitted timing or scheduled by downlink control information. By transmitting to the BS, the UE can share the COT with the BS, and the BS can transmit downlink data to the UE during the COT.

Description

Technical Field

[0001] This patent application claims priority to U.S. Patent Application No. 17 / 573,477, entitled "RECEIVER-SIDE ASSISTANCE INFORMATION USING MULTIPLE UPLINK TRANSMIT OPPORTUNITIES", filed January 11, 2022, by Sun et al.; and U.S. Provisional Patent Application No. 63 / 138,379, entitled "RECEIVER-SIDE ASSISTANCE INFORMATION USING MULTIPLE UPLINK TRANSMIT OPPORTUNITIES", filed January 15, 2021, each of which is assigned to the assignee of this application, and each of which is expressly incorporated herein by reference.

[0002] The following is about wireless communication, including receiver-side auxiliary information for using multiple uplink transmission opportunities. Prior Technology

[0003] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, and broadcasting. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiplexing access systems include fourth-generation (4G) systems (e.g., Long Term Evolution (LTE) systems, improved LTE (LTE-A) systems, or LTE-A Pro systems) and fifth-generation (5G) systems (which may be referred to as New Radio (NR) systems). These systems may employ technologies such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), or Discrete Fourier Transform Spread Spectrum OFDM (DFT-S-OFDM). A wireless multiplexing access communication system may include one or more base stations (BS) or one or more network access nodes, each base station or network access node simultaneously supporting communication with multiple communication devices (which may also be referred to as user equipment (UE)). Summary of the Invention

[0004] The systems, methods, and apparatus described in this case have several innovative forms, none of which are solely responsible for the desired properties disclosed herein.

[0005] One innovative aspect of the subject matter described in this application can be implemented in a method for wireless communication at a user equipment (UE). The method may include the following steps: receiving an indication of a set of multiple uplink transmission opportunities; initiating a channel occupancy time (COT) based on a successful idle channel assessment (CCA) performed prior to a first uplink transmission opportunity in the set of multiple uplink transmission opportunities; transmitting receiver-side auxiliary information on an uplink shared channel in the shared spectrum during the first uplink transmission opportunity, the receiver-side auxiliary information indicating the initiation of the COT; and monitoring downlink shared channel transmissions in the shared spectrum during the COT based on the receiver-side auxiliary information.

[0006] Another innovative aspect of the subject matter described in this application can be implemented in a device for wireless communication at a UE. The device may include a first interface, a second interface, and a processing system. The first interface may be configured to: obtain an indication of a set of multiple uplink transmission opportunities. The processing system may be configured to: initiate COT based on a successful CCA performed prior to a first uplink transmission opportunity within the set of multiple uplink transmission opportunities. The first interface or the second interface may be configured to: output receiver-side assistance information on an uplink shared channel in the shared spectrum during the first uplink transmission opportunity, the receiver-side assistance information indicating the initiation of the COT. The processing system may be configured to: monitor downlink shared channel transmissions in the shared spectrum during the COT based on the receiver-side assistance information.

[0007] Another innovative aspect of the subject matter described in this case can be implemented in another device for wireless communication at a UE. This device may include a processor, memory coupled to the processor, and instructions stored in the memory. These instructions may be executed by the processor to cause the device to: receive an indication of a set of multiple uplink transmission opportunities; initiate a COT based on a successful CCA executed prior to a first uplink transmission opportunity in the set of multiple uplink transmission opportunities; output receiver-side assistance information on an uplink shared channel in the shared spectrum during the first uplink transmission opportunity, the receiver-side assistance information indicating the initiation of the COT; and monitor downlink shared channel transmissions in the shared spectrum during the COT based on the receiver-side assistance information.

[0008] Another innovative aspect of the subject matter described in this case can be implemented in another apparatus for wireless communication at a UE. This apparatus may include: means for receiving an indication of a set of multiple uplink transmission opportunities; means for initiating COT based on a successful CCA performed prior to a first uplink transmission opportunity in the set of multiple uplink transmission opportunities; means for transmitting receiver-side auxiliary information on an uplink shared channel in the shared spectrum during the first uplink transmission opportunity, the receiver-side auxiliary information indicating the initiation of the COT; and means for monitoring downlink shared channel transmissions in the shared spectrum during the COT based on the receiver-side auxiliary information.

[0009] Another innovative aspect of the subject matter described in this case can be implemented in a non-transitory computer-readable medium storing code for wireless communication at the UE. This code may include instructions executable by a processor to: receive an indication of a set of multiple uplink transmission opportunities; initiate COT based on a successful CCA executed prior to a first uplink transmission opportunity in the set of multiple uplink transmission opportunities; transmit receiver-side auxiliary information on an uplink shared channel in the shared spectrum during the first uplink transmission opportunity, the receiver-side auxiliary information indicating the initiation of the COT; and monitor downlink shared channel transmissions in the shared spectrum during the COT based on the receiver-side auxiliary information.

[0010] One innovative aspect of the subject matter described in this application can be implemented in a method for wireless communication at a base station (BS). This method may include the steps of: transmitting an indication of a set of multiple uplink transmission opportunities; receiving receiver-side assistance information from a UE on an uplink shared channel in a shared spectrum during a first uplink transmission opportunity in the set of multiple uplink transmission opportunities, the receiver-side assistance information indicating the initiation of COT; and transmitting downlink shared channel transmission in the shared spectrum during the COT based on the receiver-side assistance information.

[0011] Another innovative aspect of the subject matter described in this application can be implemented in an apparatus for wireless communication at a BS. The apparatus may include a first interface, a second interface, and a processing system. The first interface may be configured to output an indication of a set of multiple uplink transmission opportunities. The first interface or the second interface may be configured to obtain receiver-side assistance information from the UE on an uplink shared channel in a shared spectrum during a first uplink transmission opportunity within the set of multiple uplink transmission opportunities, the receiver-side assistance information indicating the initiation of COT. The first interface or the second interface may be configured to output downlink shared channel transmission in the shared spectrum during the COT based on the receiver-side assistance information.

[0012] Another innovative aspect of the subject matter described in this case can be implemented in another device for wireless communication at a BS. This device may include a processor, memory coupled to the processor, and instructions stored in the memory. These instructions may be executed by the processor to cause the device to: transmit an indication of a set of multiple uplink transmission opportunities; receive receiver-side assistance information from the UE on an uplink shared channel in a shared spectrum during a first uplink transmission opportunity in the set of multiple uplink transmission opportunities, the receiver-side assistance information indicating the initiation of COT; and transmit downlink shared channel transmission in the shared spectrum during the COT based on the receiver-side assistance information.

[0013] Another innovative aspect of the subject matter described in this case can be implemented in another apparatus for wireless communication at a UE. This apparatus may include: means for transmitting an indication of a set of multiple uplink transmission opportunities; means for receiving receiver-side assistance information from the UE on an uplink shared channel in a shared spectrum during a first uplink transmission opportunity in the set of multiple uplink transmission opportunities, the receiver-side assistance information indicating the initiation of COT; and means for transmitting downlink shared channel transmission in the shared spectrum during the COT based on the receiver-side assistance information.

[0014] Another innovative aspect of the subject matter described in this case can be implemented in a non-transitory computer-readable medium storing code for wireless communication at a UE. This code may include instructions executable by a processor to perform: transmitting an indication of a set of multiple uplink transmission opportunities; receiving receiver-side assistance information from the UE on an uplink shared channel in a shared spectrum during a first uplink transmission opportunity in the set of multiple uplink transmission opportunities, the receiver-side assistance information indicating the initiation of COT; and transmitting downlink shared channel transmission in the shared spectrum during the COT based on the receiver-side assistance information.

[0015] Details of one or more implementations of the subject matter described herein are set forth in the accompanying drawings and the following description. Other features, characteristics, and advantages will become apparent from the specification, drawings, and claims. It should be noted that the relative dimensions in the following drawings may not be drawn to scale. Simple Explanation of the Diagram

[0016] Figure 1 illustrates an example of a wireless communication system that supports receiver-side auxiliary information using multiple uplink transmission opportunities.

[0017] Figures 2-4 illustrate examples of network architectures that support receiver-side auxiliary information using multiple uplink transmission opportunities.

[0018] Figures 5 and 6 illustrate block diagrams of exemplary devices that support receiver-side auxiliary information using multiple uplink transmission opportunities.

[0019] Figures 7-9 illustrate flowcharts of a method for supporting receiver-side auxiliary information using multiple uplink transmission opportunities.

[0020] Similar element symbols and naming conventions in the various figures indicate similar elements. Implementation

[0021] For the purpose of describing the innovative aspects of this case, the following description pertains to certain implementations. However, it will be readily apparent to those skilled in the art that the teachings herein can be applied in a variety of different ways. The described implementations can be implemented in any device, system, or network capable of transmitting and receiving radio frequency signals according to: any of the Institute of Electrical and Electronics Engineers (IEEE) 16.11 standards, or any of the IEEE 802.11 standards, Bluetooth® standards, Code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Global System for Mobile Communications (GSM), GSM or General Packet Radio Service (GPRS), Enhanced Data GSM Environment (EDGE), Terrestrial Trunking Radio (TETRA), Wideband-CDMA (W-CDMA), Evolved Data Optimization (EV-DO), 1xEV-DO, EV-DO Rev A, EV-DO Rev B. High-speed packet access (HSPA), high-speed downlink packet access (HSDPA), high-speed uplink packet access (HSUPA), high-speed evolution packet access (HSPA+), long-term evolution (LTE), AMPS, or other known signals used for communication in wireless, cellular, or Internet of Things (IoT) networks (e.g., systems utilizing 3G, 4G, or 5G, or other implementations or technologies thereof).

[0022] User equipment (UE) and base station (BS) can communicate using millimeter-wave (mmW) signal transmission over unlicensed radio frequency spectrum bands. Communication over unlicensed radio frequency spectrum bands can utilize channel sensing procedures, such as idle channel assessment (CCA), to gain access to the channel medium. A device that successfully performs CCA can acquire the channel medium during the channel occupancy time (COT) and can transmit over the channel medium without interference from other devices. In some instances, the BS may have data ready to be transmitted to the UE. The UE and BS may attempt to protect the reception of different data from interference; however, given the highly directional nature of mmW transmissions, the BS and UE may observe different interference patterns.

[0023] To determine if the receiver-side channel can support reception without disruptive interference, the BS can first transmit a pre-acceptance. The UE can receive the pre-acceptance, and the UE can perform a Complaint Acceptance (CCA) to gain access to the radio channel and respond with a pre-acceptance transmission acknowledgement. The acknowledgement can indicate that the receiver-side channel is idle for reception, and the BS can transmit data to the UE. If no acknowledgement is received (e.g., the UE does not pass the CCA), the BS can determine that the UE is under interference, and the BS can avoid communicating in that beam direction to avoid interference. The UE can have multiple time-domain opportunities to transmit the acknowledgement of the pre-acceptance. The UE can perform a CCA before each opportunity to gain access to the radio channel and transmit the acknowledgement. A UE that successfully performs a CCA can initiate a Communication on Target (COT), and the UE can share the COT with the BS by transmitting an acknowledgement to the BS. The BS can transmit data to the UE during the downlink portion of the shared COT.

[0024] The wireless communication system described herein supports techniques for transmitting receiver-side assistance information (BSA) to indicate that a UE has initiated COT (Continuous Access Response) via uplink shared channel transmission. Multiple uplink transmission opportunities for the uplink shared channel can be indicated to the UE to transmit BSA. For example, the UE can receive configured allow and downlink control information (DCI) to enable multiple configured allowable opportunities, or the BS can transmit DCIs associated with multiple scheduled uplink transmission opportunities. The UE can perform CCA (Continuous Access Response) before each uplink transmission opportunity and initiate COT when the UE passes through the CCA. The UE can transmit on the uplink shared channel to indicate that the channel is available and that the UE has initiated COT. In some instances, uplink shared channel transmissions may include BSA. For example, BSA may include the UE's measurement information, rank or beam request, COT information, or buffer information. In some instances, the BS may apply BSA to communications with the UE, such as downlink data transmissions during shared COT.

[0025] Specific implementations of the subject matter described herein can be implemented to achieve one or more of the following potential advantages. The described techniques can be implemented to provide improved quality of downlink transmission and increased reliability in a shared RF spectrum band. To improve communication quality, the UE can provide the BS with useful information for downlink shared channel transmission. For example, receiver-side auxiliary information may include measurement results or beamforming information, which can be processed and implemented by the BS to improve channel conditions or signal strength for transmission to the UE. Furthermore, these techniques can ensure the reliability of downlink data transmission by sharing the UE-initiated COT with the BS. These techniques can mitigate receiver-side interference in downlink transmission because the UE can first determine channel availability by performing CCA. The threshold for initiating COT using the CCA procedure can be adjustable, thereby increasing the probability of successful downlink transmission or the probability of the UE passing CCA and initiating COT, thereby further increasing the amount of downlink data transmitted.

[0026] In some cases, receiver-side auxiliary information can provide enhanced performance for millimeter-wave communications in unlicensed RF spectrum bands, where transmissions can be highly directional. In some situations, channel sensing performed at the transmitter (such as CCA or Listen-After-Speak (LBT)) may be mismatched or irrelevant to the interference conditions at the receiver. Performing channel sensing at the receiver can reduce the mismatch between the sensed energy and the actual interference conditions. Providing receiver-side auxiliary information via CCA-based sensing can be advantageous compared to receiver-side channel state information (CSI). For example, CCA performed at the receiver can immediately precede COT, which can provide faster or more timely feedback than conventional periodic or aperiodic CSI based on previously performed measurements.

[0027] Figure 1 illustrates examples of a wireless communication system 100 supporting receiver-side auxiliary information using multiple uplink transmission opportunities, according to various embodiments of the present invention. The wireless communication system 100 may include one or more BS 105s, one or more UEs 115s, and a core network 130. In some instances, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an improved LTE (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some instances, the wireless communication system 100 may support enhanced broadband communication, ultra-reliable (e.g., mission-critical) communication, low-latency communication, or communication with low-cost and low-complexity devices, or any combination thereof.

[0028] BS 105 can be distributed across a geographical area to form a wireless communication system 100, and can be devices of different forms or with different capabilities. BS 105 and UE 115 can communicate wirelessly via one or more communication links 125. Each BS 105 can provide a coverage area 110, and UE 115 and BS 105 can establish one or more communication links 125 on the coverage area 110. Coverage area 110 can be an example of a geographical area where BS 105 and UE 115 can support communication of signals according to one or more radio access technologies.

[0029] UE 115 can be distributed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 can be stationary, mobile, or both at different times. UE 115 can be devices of different forms or with different capabilities. Some exemplary UE 115s are illustrated in Figure 1. The UE 115 described herein may be able to communicate with various types of devices, such as other UE 115s, BS 105s, and / or network devices (e.g., core network nodes, relay devices, integrated access and backload (IAB) nodes, or other network devices), as shown in Figure 1.

[0030] BS 105 can communicate with core network 130, communicate with each other, or perform both operations. For example, BS 105 can interface with core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). BS 105 can communicate directly (e.g., directly between BS 105) on backhaul links 120 (e.g., via X2, Xn, or another interface), or indirectly (e.g., via core network 130), or perform both operations. In some instances, backhaul link 120 can be one or more radio links or include one or more radio links.

[0031] One or more of the BS 105 described herein may include, or may be referred to by those of ordinary skill as, base station transceiver, radio BS, access point, radio transceiver, node B, evolved node B (eNB), next-generation node B or gigabit node B (any of which may be referred to as gNB), home node B, home evolved node B, or some other suitable term.

[0032] UE 115 may include or be referred to as a mobile device, wireless device, remote device, handheld device, or user equipment, or some other suitable term, wherein "device" may also be referred to as a cell, station, terminal, or client, and other instances. UE 115 may also include or be referred to as a personal electronic device, such as a cellular phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some instances, UE 115 may include or be referred to as a wireless area loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device, or machine-type communication (MTC) device, which may be implemented in various items such as electrical appliances, vehicles, instruments, etc.

[0033] The UE 115 described in this article may be able to communicate with various types of devices, such as other UE 115s that can sometimes act as repeaters, as well as BS 105 and network devices, including macro eNBs or gNBs, small cell eNBs or gNBs, or relay BSs, as shown in Figure 1.

[0034] UE 115 and BS 105 can communicate wirelessly with each other via one or more communication links 125 on one or more carriers. The term "carrier" can represent a set of radio frequency spectrum resources having a defined physical layer structure for supporting communication links 125. For example, a carrier for communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth portion (BWP)) that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry capture signaling (e.g., synchronization signals, system information), control signaling to coordinate operation of the carrier, user data, or other signaling. The wireless communication system 100 can support communication with UE 115 using carrier aggregation or multi-carrier operation. Depending on the carrier aggregation configuration, UE 115 can be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation can be used in conjunction with both frequency division duplex (FDD) component carriers and time division duplex (TDD) component carriers.

[0035] In some instances (e.g., in a carrier aggregation configuration), carriers may also have acquisition signaling or control signaling that coordinates operation against other carriers. Carriers may be associated with frequency channels (e.g., Evolutionary Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Channel Number (EARFCN)) and can be positioned according to a channel grid for discovery by UE 115. Carriers can operate in standalone mode, where UE 115 initiates acquisition and connection via a carrier, or in non-standalone mode, where different carriers (e.g., the same or different radio access technologies) are used to anchor the connection.

[0036] The communication link 125 illustrated in the wireless communication system 100 may include uplink transmission from UE 115 to BS 105, or downlink transmission from BS 105 to UE 115. The carrier may carry either downlink or uplink communication (e.g., in FDD mode) or may be configured to carry both downlink and uplink communication (e.g., in TDD mode).

[0037] A carrier may be associated with a specific bandwidth of the radio frequency spectrum, and in some instances, the carrier bandwidth may be referred to as the carrier or the "system bandwidth" of the wireless communication system 100. For example, the carrier bandwidth may be one of a plurality of determined bandwidths for a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz). The devices of the wireless communication system 100 (e.g., BS 105, UE 115, or both) may have hardware configurations supporting communication on a specific carrier bandwidth, or may be configurable to support communication on one carrier bandwidth in a set of carrier bandwidths. In some instances, the wireless communication system 100 may include BS 105 and / or UE 115 supporting simultaneous communication via carriers associated with multiple carrier bandwidths. In some instances, each served UE 115 may be configured to operate on a portion (e.g., a subband, BWP) or all of the carrier bandwidth.

[0038] The signal waveform transmitted on a carrier can consist of multiple subcarriers (e.g., using multicarrier modulation (MCM) techniques such as Orthogonal Frequency Division Multiplexing (OFDM) or Discrete Fourier Transform Spread Spectrum OFDM (DFT-S-OFDM). In a system employing MCM, a resource element can consist of one symbol period (e.g., the duration of a modulation symbol) and one subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element can depend on the modulation scheme (e.g., the order of the modulation scheme, the decoding rate of the modulation scheme, or both). Therefore, the more resource elements the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate can be for the UE 115. Radio communication resources can represent a combination of radio frequency spectrum resources, temporal resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers can further increase the data rate or data integrity for communication with the UE 115.

[0039] It can support one or more numerical schemes for the carrier, wherein the numerical scheme may include the subcarrier spacing. () and cyclic prefix. A carrier can be divided into one or more BWPs with the same or different numerical schemes. In some instances, UE 115 can be configured with multiple BWPs. In some instances, a single BWP for a carrier can be active at a given time, and communication for UE 115 can be restricted to one or more active BWPs.

[0040] It can be in the basic unit of time (which can be, for example, referred to as) The sampling period is seconds, where It can represent the maximum supported subcarrier spacing, and The time intervals used for BS 105 or UE 115 can be represented as multiples of the maximum supported Discrete Fourier Transform (DFT) size. The time intervals of communication resources can be organized based on radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame can be identified via a System Frame Number (SFN) (e.g., ranging from 0 to 1023).

[0041] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some instances, a frame may be divided into subframes (e.g., in the time domain), and each subframe may be further divided into multiple time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier interval. Each time slot may include multiple symbol periods (e.g., the number depends on the length of the cyclic prefix added before each symbol period). In some wireless communication systems 100, time slots may be further divided into multiple microtime slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., (Number) sampling periods. The duration of a symbol period can depend on the subcarrier interval or the operating frequency band.

[0042] Subframes, time slots, micro-time slots, or symbols can be the minimum scheduling unit (e.g., in the time domain) of the wireless communication system 100 and can be referred to as transmission time intervals (TTIs). In some instances, the duration of the TTI (e.g., the number of symbol periods in the TTI) can be variable. Alternatively, the minimum scheduling unit of the wireless communication system 100 can be dynamically selected (e.g., in the form of short pulses of shortened TTIs (sTTIs)).

[0043] Multiplexing of physical channels on a carrier can be performed using various techniques. For example, one or more of Time Division Multiplexing (TDM), Frequency Division Multiplexing (FDM), or hybrid TDM-FDM techniques can be used to multiplex physical control channels and physical data channels on a downlink carrier. A control region (e.g., a control resource set (CORESET)) for a physical control channel can be defined by multiple symbol periods and can span the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESETs) can be configured for a group of UEs 115. For example, one or more UEs in UE 115 can monitor or search for control regions for control information based on one or more search space sets, and each search space set can include one or more control channel candidates arranged in a cascaded manner at one or more aggregation levels. The aggregation level for control channel candidates can represent the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space set may include a shared search space set configured to send control information to multiple UEs 115 and a UE-specific search space set configured to send control information to a particular UE 115.

[0044] Each BS 105 may provide communication coverage via one or more cells (e.g., macro cells, small cells, hotspots, or other types of cells, or any combination thereof). The term "cell" may represent a logical communication entity used (e.g., on a carrier) for communication with the BS 105, and may be associated with an identifier used to distinguish adjacent cells (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or others). In some instances, a cell may also represent a geographic coverage area 110 or a portion of geographic coverage area 110 (e.g., a sector) on which a logical communication entity operates. Depending on various factors such as the capabilities of the BS 105, the range of such cells can be from small areas (e.g., buildings, subsets of buildings) to large areas. For example, a cell may be or include buildings, subsets of buildings, or external space between or overlapping geographic coverage areas 110.

[0045] Macrocells typically cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access by UE 115 with a service subscription to a network provider supporting the macrocell. In contrast, small cells can be associated with a lower-power BS 105 and can operate in the same or different (e.g., licensed, unlicensed) frequency bands as macrocells. Small cells can provide unrestricted access to UE 115 with a service subscription to a network provider, or restricted access to UE 115 associated with a small cell (e.g., UE 115 in a Closed Subscriber Group (CSG), UE 115 associated with a user in a residence or office, etc.). BS 105 can support one or more cells and can also support communication on one or more cells using one or more component carriers.

[0046] In some instances, a carrier can support multiple cells, and different cells can be configured based on different protocol types that can provide access for different types of devices (e.g., MTC, Narrowband IoT (NB-IoT), Enhanced Mobile Broadband (eMBB)).

[0047] In some instances, the BS 105 may be mobile, and therefore provide communication coverage for mobile geographic coverage areas 110. In some instances, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same BS 105. In some other instances, overlapping geographic coverage areas 110 associated with different technologies may be supported by different BS 105s. The wireless communication system 100 may include, for example, a heterogeneous network, in which different types of BS 105s use the same or different radio access technologies to provide coverage for various geographic coverage areas 110.

[0048] The wireless communication system 100 can support synchronous or asynchronous operation. For synchronous operation, the BS 105s can have similar frame timings, and transmissions from different BS 105s can be approximately aligned in time. For asynchronous operation, the BS 105s can have different frame timings, and in some instances, transmissions from different BS 105s may not be aligned in time. The techniques described herein can be used for both synchronous and asynchronous operation.

[0049] Some UE 115 devices (e.g., MTC or IoT devices) can be low-cost or low-complexity devices that can provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC can represent data communication technologies that allow devices to communicate with each other or with the BS 105 without human intervention. In some instances, M2M communication or MTC can include communication from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application that uses the information or presents it to people interacting with the application. Some UE 115 devices can be designed to collect information or automate the behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, climate and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business billing.

[0050] Some UE 115s can be configured to operate in a power-saving mode, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception instead of simultaneous transmission and reception). In some instances, half-duplex communication may be performed at a reduced peak rate. Other power-saving techniques for UE 115 include entering a power-saving deep sleep mode when not engaged in active communication, when operating on limited bandwidth (e.g., according to narrowband communication), or when a combination of these techniques is used. For example, some UE 115s can be configured to operate using a narrowband protocol type associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs) within a carrier, within a carrier's guard band, or outside a carrier.

[0051] Wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, wireless communication system 100 can be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. UE 115 can be designed to support ultra-reliable, low-latency, or mission-critical functions (e.g., mission-critical functions). Ultra-reliable communication can include private or group communication, and can be supported by one or more mission-critical services (such as Mission-Critical Push-to-Talk (MCPTT), Mission-Critical Video (MCVideo), or Mission-Critical Data (MCData)). Support for mission-critical functions can include service prioritization, and mission-critical services can be used for public safety or general business applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency are used interchangeably herein.

[0052] In some instances, UE 115 may also be able to communicate directly with other UE 115s on a device-to-device (D2D) communication link 135 (e.g., using peer-to-peer (P2P) or D2D protocols). One or more UE 115s utilizing D2D communication may be within the geographic coverage area 110 of BS 105. Other UE 115s in such a group may be outside the geographic coverage area 110 of BS 105, or otherwise unable to receive transmissions from BS 105. In some instances, groups of UE 115s communicating via D2D communication may utilize a one-to-many (1:M) system, where each UE 115 transmits to each other UE 115 in the group. In some instances, BS 105 facilitates the scheduling of resources for D2D communication. In some other instances, D2D communication is performed between UE 115s without involving BS 105.

[0053] In some systems, the D2D communication link 135 can be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some instances, the vehicle can communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination thereof. The vehicle can transmit information related to traffic conditions, signal scheduling, weather, safety, emergencies, or any other information related to the V2X system. In some instances, a vehicle in a V2X system can communicate with roadside infrastructure (such as roadside units), or communicate with the network via one or more network nodes (e.g., BS 105) using vehicle-to-network (V2N) communication, or both.

[0054] Core network 130 can provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. Core network 130 can be an Evolved Packet Core (EPC) or a 5G Core (5GC), which may include at least one control plane entity (e.g., a Mobility Management Entity (MME), Access and Mobility Management Function (AMF)) managing access and mobility, and at least one user plane entity (e.g., a Serving Gateway (S-GW), Packet Data Network (PDN) Gateway (P-GW), or User Plane Function (UPF)) routing packets to or interconnecting with external networks. The control plane entity can manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management for UE 115 served by BS 105 associated with core network 130. User IP packets can be transmitted via user plane entities, which can provide IP address allocation and other functions. User plane entities can connect to IP services 150 for one or more network service providers. IP service 150 may include access to the Internet, intranet, IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0055] Some network devices (e.g., BS 105) may include sub-elements such as access network entity 140, which may be an instance of an access node controller (ANC). Each access network entity 140 may communicate with UE 115 via one or more other access network transport entities 145 (which may be referred to as a radio headend, smart radio headend, or transmit / receive point (TRP)). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or BS 105 may be distributed across individual network devices (e.g., radio headends and ANCs) or incorporated into a single network device (e.g., BS 105).

[0056] As described herein, BS 105 may include one or more elements located in a single physical location or in various physical locations. In instances where BS 105 includes elements located in various physical locations, the various elements may each perform various functions, such that the various elements collectively achieve functions similar to those of BS 105 located in a single physical location. Therefore, BS 105 described herein may equivalently represent a standalone BS 105 (also referred to as a monolithic BS) or a BS 105 including elements located in various physical or virtualized locations (also referred to as a disaggregated BS). In some implementations, such a BS 105 including elements located in various physical locations may be referred to as or associated with a disaggregated radio access network (RAN) architecture (such as an open RAN (O-RAN) or virtualized RAN (VRAN) architecture). In some implementations, such elements of BS 105 may include or represent one or more of a central unit (or centralized unit CU), a distributed unit (DU), or a radio unit (RU).

[0057] Wireless communication system 100 can operate using one or more frequency bands (typically in the range of 300 MHz to 300 GHz). The region from 300 MHz to 3 GHz is generally referred to as the Ultra High Frequency (UHF) region or decimeter band because the wavelength range extends from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, but the waves can be sufficiently penetrating buildings to provide service to the UE 115 located indoors via macrocells. Compared to the transmission of smaller frequencies and longer waves using the lower frequencies (HF) or ultra-high frequency (VHF) portions of the spectrum below 300 MHz, UHF wave transmission can be associated with smaller antennas and shorter distances (e.g., less than 100 km).

[0058] The wireless communication system 100 can also operate in the ultra-high frequency (SHF) region using a frequency band from 3 GHz to 30 GHz (also known as the centimeter band) or in the extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) (also known as the millimeter band). In some instances, the wireless communication system 100 can support millimeter-wave (mmW) communication between UE 115 and BS 105, and the EHF antennas of the corresponding device can be even smaller and more closely spaced compared to UHF antennas. In some instances, this can facilitate the use of antenna arrays within the device. However, compared to SHF or UHF transmissions, EHF transmissions may suffer even greater atmospheric attenuation and shorter distances. The techniques disclosed herein can be employed across transmissions using one or more different frequency regions, and the designated use of frequency bands across such frequency regions can vary depending on the country or regulatory body.

[0059] Wireless communication system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, wireless communication system 100 can employ Licensed Assisted Access (LAA), LTE Unlicensed (LTE-U) radio access technology, or NR technology in unlicensed bands (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band). When operating in unlicensed radio frequency spectrum bands, devices (such as BS 105 and UE 115) can employ carrier sensing for collision detection and avoidance. In some instances, operation in unlicensed bands can be based on carrier aggregation configurations that combine component carriers operating in licensed bands (e.g., LAA). Operation in unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, etc.

[0060] BS 105 or UE 115 may be equipped with multiple antennas, which can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of BS 105 or UE 115 may be located within one or more antenna arrays or antenna panels (which can support MIMO operation or transmit or receive beamforming). For example, one or more BS antennas or antenna arrays may be co-located at antenna elements, such as antenna towers. In some instances, the antennas or antenna arrays associated with BS 105 may be located in different geographical locations. BS 105 may have an antenna array with multiple rows and columns of antenna ports that BS 105 can use to support beamforming for communication with UE 115. Similarly, UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals transmitted via the antenna ports.

[0061] BS 105 or UE 115 can use MIMO communication to utilize multipath signal propagation and increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers. This technique can be called spatial multiplexing. For example, a transmitting device can transmit multiple signals via different antennas or different combinations of antennas. Similarly, a receiving device can receive multiple signals via different antennas or different combinations of antennas. Each of the multiple signals can be referred to as a separate spatial stream and can carry bits associated with the same data stream (e.g., the same coded characters) or different data streams (e.g., different coded characters). Different spatial layers can be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO) (where multiple spatial layers are transmitted to the same receiving device) and multi-user MIMO (MU-MIMO) (where multiple spatial layers are transmitted to multiple devices).

[0062] Beamforming (also known as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting or receiving device (e.g., BS 105, UE 115) to form or guide antenna beams (e.g., transmit beams, receive beams) along a spatial path between the transmitting and receiving devices. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array such that some signals propagating relative to a specific orientation of the antenna array experience constructive interference, while others experience destructive interference. Adjustments to the signals transmitted via the antenna elements can include applying amplitude offset, phase offset, or both to the signals carried by the transmitting or receiving device via the antenna elements associated with that device. The adjustments associated with each antenna element can be defined by a set of beamforming weights associated with a specific orientation (e.g., relative to the antenna array of the transmitting or receiving device, or relative to some other orientation).

[0063] As part of beamforming operations, BS 105 or UE 115 may use beam scanning techniques. For example, BS 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with UE 115. BS 105 may transmit several signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) multiple times in different directions. For example, BS 105 may transmit signals based on different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions can be used (e.g., by a transmitting device (such as BS 105) or a receiving device (such as UE 115)) to identify the beam direction for subsequent transmissions or receptions performed by BS 105.

[0064] BS 105 may transmit signals (e.g., data signals associated with a specific receiving device) in a single beam direction (e.g., the direction associated with a particular receiving device, such as UE 115). In some instances, the beam direction associated with transmission along a single beam direction may be determined based on the signals transmitted in one or more beam directions. For example, UE 115 may receive one or more signals transmitted by BS 105 in different directions and may report to BS 105 an indication of the signal received by UE 115 that has the highest signal quality or otherwise acceptable signal quality.

[0065] In some instances, multiple beam directions can be used to perform transmissions by a device (e.g., BS 105 or UE 115), and the device can use a combination of digital precoding or radio frequency beamforming to generate combined beams for (e.g., from BS 105 to UE 115) transmissions. UE 115 can report feedback indicating precoding weights for one or more beam directions, and this feedback can correspond to a configured number of beams spanning the system bandwidth or one or more sub-bands. BS 105 can transmit reference signals that can be precoded or not (e.g., cell-specific reference signals (CRS), CSI reference signals (CSI-RS)). UE 115 can provide feedback on beam selection, which can be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., multi-panel type codebook, linear combination type codebook, port selection type codebook). Although these techniques are described with reference to signals transmitted in one or more directions in BS 105, UE 115 may employ similar techniques to transmit signals multiple times in different directions (e.g., to identify the beam direction for subsequent transmission or reception by UE 115) or to transmit signals in a single direction (e.g., to transmit data to a receiving device).

[0066] When receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from BS 105, the receiving device (e.g., UE 115) can attempt multiple receiving configurations (e.g., directional listening). For example, the receiving device can attempt multiple receiving directions by receiving via different antenna subarrays, by processing the received signals according to different antenna subarrays, by receiving according to different sets of receiving beamforming weights applied to signals received at multiple antenna elements of the antenna array (e.g., different sets of directional listening weights), or by processing the received signals according to different sets of receiving beamforming weights applied to signals received at multiple antenna elements of the antenna array (any of these operations can be referred to as "listening" according to different receiving configurations or receiving directions). In some instances, the receiving device can use a single receiving configuration to receive along a single beam direction (e.g., when receiving data signals). A single receiver configuration can be aligned on a beam direction determined based on listening in different receiver configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or otherwise acceptable signal quality based on listening in multiple beam directions).

[0067] The wireless communication system 100 can be a packet-based network operating according to a layered protocol stack. In the user plane, communication at the bearer or packet data convergence protocol (PDCP) layer can be IP-based. The radio link control (RLC) layer can perform packet fragmentation and reassembly for transmission over logical channels. The media access control (MAC) layer can perform prioritization and multiplexing from logical channel to transport channel. The MAC layer can also use error detection techniques, error correction techniques, or both to support retransmission at the MAC layer to improve link efficiency. In the control plane, the radio resource control (RRC) protocol layer can provide the establishment, configuration, and maintenance of RRC connections (which support radio bearers for user plane data) between UE 115 and BS 105 or core network 130. At the physical layer, transport channels can be mapped to physical channels.

[0068] UE 115 and BS 105 can support data retransmission to increase the likelihood of successful data reception. Hybrid Automatic Repeat Request (HARQ) feedback is a technique used to increase the likelihood of data being correctly received on communication link 125. HARQ can include a combination of error detection (e.g., using Cyclic Redundancy Check (CRC)), forward error correction (FEC), and retransmission (e.g., Automatic Repeat Request (ARQ)). HARQ can improve throughput at the MAC layer under poor radio conditions (e.g., low signal and noise conditions). In some instances, the device can support same-slot HARQ feedback, where the device can provide HARQ feedback for data received in a previous symbol within a specific time slot. In other instances, the device can provide HARQ feedback in subsequent time slots or according to some other time interval.

[0069] As the demand for communication resources increases due to the growing number of wireless devices communicating on available spectrum, technologies that efficiently and reliably increase throughput are desired. Some wireless communication systems can use higher frequency bands of unlicensed radio frequency spectrum (such as the 60 GHz range or higher) to provide additional bandwidth and further increase throughput.

[0070] For unlicensed spectrum (such as shared spectrum) communication, the device can perform a CCA check or CCA procedure (such as an LBT procedure) to gain access to the channel media. For some CCA procedures (such as a channel access procedure in the 60 GHz band), the device can detect pending transmissions and attempt to initiate a COT (Confirmation of Access) on the communication channel (such as a PUSCH transmission) in the unlicensed spectrum to initiate the transmission. For example, in a CCA procedure, the device can randomly generate or determine the value of a counter C (such as a random value), where the value is between a minimum value Zmin and a maximum value Zmax. The device can repeat the channel sensing up to a minimum number of random iterations. For example, if the channel media is idle for an observation window (e.g., 8 microseconds), the device can decrement the counter C. Subsequently, as long as the value of the counter C is non-zero, the device can repeat (one after another) the channel sensing and decrement the counter C. If the channel is occupied (e.g., if the media is busy), the device can (re)initiate the CCA procedure or perform another channel sensing using the same counter value, for example, after the channel occupancy window has ended. When the device determines that the channel is not (or is no longer) occupied (e.g., when the media is idle), and counter C equals zero, the device can be allowed to occupy the channel by initiating a shared channel transmission. Some wireless communication systems can use an extended CCA procedure (eCCA). The eCCA procedure can support a longer window for performing channel sensing.

[0071] A device can initiate a COT after successfully performing a CCA check or CCA procedure. The initiating device can share the COT with other responding devices. A responding device may not need to perform a CCA procedure to share the COT with the initiating device (e.g., when transmitting a response during the COT). In some instances, there may not be a timer for the gap between the initial transmission and the response from the responding device within the COT. For example, there may be no requirement regarding the length of the gap between the initiating device transmission and the responding device transmission. For example, UE 115 can detect pending transmissions, perform and pass (e.g., successfully perform) a CCA procedure so that UE 115 initiates a COT. UE 115 can share its COT with BS 105 (e.g., the UE-initiated COT). During the UE-initiated COT, BS 105 may be able to perform various transmissions (not just responses) destined for UE 115. In some instances, the COT may have one or more uplink portions for uplink transmissions and one or more downlink portions for downlink transmissions.

[0072] Some wireless communication systems can use beamforming communication to improve signal strength and reliability. However, due to high directional transmission, especially with beamforming mmW signal transmission, transmitters and receivers in such systems may experience different interference patterns. For example, BS 105 may not experience the same interference as UE 115; therefore, without any additional information from UE 115, BS 105 can assume that UE 115's channel is idle (e.g., when the channel is unoccupied or no longer occupied). Some systems in these systems can implement techniques to protect data reception from interference.

[0073] In some instances, to protect data reception, the wireless communication system 100 can implement pre-accepted transmission. For example, BS 105 can transmit downlink pre-acceptance, and UE 115 can transmit acceptance of the pre-acceptance. UE 115 can execute a CCA procedure to transmit acceptance of the pre-acceptance, indicating that the UE has gained access to the radio channel and can receive data transmissions from BS 105. Acceptance of the pre-acceptance allows UE 115 to confirm that the receiver-side channel is sufficiently idle to receive data. If BS 105 does not receive acceptance of the pre-acceptance, BS 105 can determine that the receiver is congested or interfered with by neighboring devices. In some instances, acceptance of the pre-acceptance can indicate to BS 105 that UE 115 is sharing a UE-initiated COT with BS 105, thereby enabling BS 105 to use the UE-initiated COT to send downlink data to UE 115.

[0074] Some wireless communication systems can support configured permissions for uplink transmissions. Configurable permissions can provide uplink transmission opportunities for UE 115 without additional permissions from BS 105. Configurable permissions can be configured via RRC signaling. After configuration, semi-persistent periodic opportunities can be used by UE 115 for uplink shared channel transmissions (e.g., PUSCH transmissions) without corresponding per-transmission permissions. In some instances, the configured permissions can be type 2 configured permissions, which can be enabled and disabled via DCI signaling from BS 105. UE 115 can send an acknowledgment to enable DCI in the MAC control element (CE).

[0075] Some wireless communication systems support using a single DCI to schedule multiple uplink shared channel opportunities so that UE 115 can transmit transport blocks. For example, BS 105 can transmit a DCI to enable time slot aggregation so that UE 115 can transmit the same transport block on different time slots without HARQ. In some instances, UE 115 can transmit the same transport block with different redundancy versions.

[0076] The techniques described herein provide a method for UE 115 to initiate COT and transmit receiver-side assistance information when sharing COT with BS. Multiple uplink shared channel transmission opportunities can be indicated to UE 115, for example, via configured allowable or physical uplink shared channel (PUSCH) slot aggregation. In some instances, enabling configured allowable DCI or scheduling multiple uplink transmission opportunities for slot aggregation can resemble pre-allowable. If UE 115 initiates COT via CCA procedure before one of the uplink transmission opportunities, UE 115 can transmit receiver-side assistance information on the uplink shared channel (e.g., on the PUSCH) to indicate the UE-initiated COT to BS 105. In some instances, uplink shared channel transmission can resemble recognition of pre-allowable. Receiver-side assistance information can be used to improve the quality of communication with BS 105, such as measurement information, buffer status information, beam or rank requests, or any combination thereof. The receiver-side auxiliary information can indicate to BS 105 that UE 115 is sharing UE-initiated COT with BS 105, and BS 105 can transmit downlink data to UE 115 during UE-initiated COT.

[0077] Several additional techniques are described for different implementation methods. For example, using a configured permissive implementation, BS 105 can transmit DCI enabled multiple times, which provides robustness for enabling configured permissive in instances of interference at UE 115. In some instances, BS 105 may have a delay for processing receiver-side auxiliary information. In this instance, BS 105 can use a preset set of values ​​(such as preset or previous beam configurations) to transmit data transmissions and, after processing receiver-side information, implement values ​​or configurations based on the receiver-side auxiliary information in the data transmission.

[0078] In some instances of PUSCH slot aggregation implementations, UE 115 can be scheduled for multiple opportunity probe reference signal (SRS) transmissions or multiple opportunity uplink data transmissions. For example, in some instances, UE 115 can receive DCIs for multiple SRS opportunities scheduled on the PUSCH, and in some instances, UE 115 can receive DCIs for multiple uplink transmission opportunities scheduled on the PUSCH for data. In some instances, after passing the CCA procedure, UE 115 can transmit an indication of the UE-initiated COT on each subsequent PUSCH opportunity, and BS 105 can use the downlink portion of the COT to schedule downlink data transmissions in the remaining portion of the COT. For example, after passing the CCA procedure, UE 115 can transmit receiver-side auxiliary information on each remaining scheduled PUSCH transmission opportunity.

[0079] Figure 2 illustrates an example of a network architecture 200 that supports receiver-side auxiliary information using multiple uplink transmission opportunities. The network architecture 200 illustrates communication between UE 115-a and BS 105-a (which may be a corresponding instance of UE 115 and BS 105 as described with reference to Figure 1).

[0080] UE 115-a and BS 105-a can communicate using unlicensed radio frequency spectrum. UE 115-a and BS 105-a can support techniques for downlink data transmission from BS 105-a using a COT initiated by the UE. To initiate COT 220, UE 115-a can perform CCA 215 and transmit it to BS 105-a on the uplink shared channel (e.g., on PUSCH). CCA 215 can be an example of the CCA procedure or CCA check described herein. UE 115-a can include receiver-side auxiliary information in uplink shared channel transmissions. In some cases, PUSCH transmissions can be an example of uplink shared channel transmissions.

[0081] UE 115-a can receive an indication of a set of uplink transmission opportunities 210. The set of uplink transmission opportunities may include at least uplink transmission opportunity 210-a and uplink transmission opportunity 210-b. For example, UE 115-a can receive configured permission via an RRC signaling transmission indicating a set of configured permission opportunities. In some instances, BS 105-a can transmit DCI 205 to enable configured permission. In some instances, a short control signaling transmission such as DCI 205 (e.g., less than about 10 ms) can be performed by BS 105-a without sensing the channel. When configured permission is active, UE 115-a can perform CCA 215 (such as CCA 215-a or CCA 215-b) before each configured permission opportunity to attempt to gain access to the channel (or media). In some instances, DCI 205 may be an instance of configured permitted receiver-assisted DCI or enabled DCI for type 2. In some instances, enabling configured permitted DCI 205 may be the same as or similar to pre-permitted. In other instances, DCI 205 may, for example, use time slot aggregation to schedule a set of uplink transmission opportunities 210. For example, UE 115-a may receive an indication to use time slot aggregation via an RRC signaling indicating an aggregation factor for PUSCH. BS 105-a may schedule a set of uplink transmission opportunities 210 for UE 115-a to transmit multiple repetitions on the uplink shared channel, each of which may include receiver-side auxiliary information.

[0082] If CCA 215 fails, UE 115-a may not transmit on the corresponding (or subsequent) uplink transmission opportunity 210. For example, UE 115-a may perform CCA 215-a before uplink transmission opportunity 210-a, and CCA 215-a may fail due to interference. Due to the failed CCA, UE 115-a may not obtain the channel medium, and UE 115-a may not transmit during the subsequent uplink transmission opportunity 210-a.

[0083] To perform CCA 215, UE 115-a can perform carrier sensing or energy detection on the channel (or media). UE 115-a can compare the detected energy to an energy detection threshold. In some instances, CCA 215 may succeed (e.g., pass) if the detected energy is below the energy detection threshold, and may fail (e.g., CCA 215 fails) if the detected energy is above the energy detection threshold. In some instances, the energy detection threshold can be a basic energy detection threshold. It can also be applied to other CCAs performed by UE 115-a, such as CCAs that do not precede uplink shared channel transmission opportunities associated with receiver-side auxiliary information.

[0084] Network architecture 200 can support adjustable power sensing for CCA 215. For example, power sensing thresholds for CCA 215 (such as CCA prior to uplink shared channel transmission opportunities associated with receiver-side auxiliary information). It can be based on a basic energy detection threshold. and energy detection threshold adjustment of, among them Adjusting the power detection threshold allows uplink shared channel gating to be configured to respond to tolerable levels of interference. For example, power detection threshold adjustment can modify the base power detection threshold to allow slightly more or less noise or interference for a successful CCA. In some instances, BS 105-a can transmit an indication of threshold adjustment to UE 115-a via DCI (such as DCI 205), RRC configuration signaling, system information signaling (such as Residual Minimum System Information (RMSI) signaling), or any combination thereof.

[0085] In some instances, BS 105-a can select energy detection threshold adjustment based on channel conditions (such as channel occupancy, signal quality or signal strength measurements, or energy detection measurements). Channel conditions can be determined by BS 105-a through measurement execution, or UE 115-a can report channel conditions to BS 105-a, or both. In some instances, UE 115-a can determine energy detection threshold adjustment. For example, UE 115-a can determine energy detection threshold adjustment based on measurements of one or more channel conditions. Alternatively, energy detection threshold adjustment can be pre-configured at UE 115-a, for example, via the specifications of network architecture 200.

[0086] In some instances, network architecture 200 may support different or second energy detection thresholds for CCA 215. For example, CCA 215 associated with an uplink transmission opportunity 210 for transmitting receiver-side auxiliary information may have a different energy detection threshold than other CCAs. In some instances, UE 115-a may use a second energy detection threshold if CCA 215 is performed before an uplink shared channel transmission opportunity to obtain COT 220 for carrying downlink HARQ retransmissions. For example, if downlink data 225 includes downlink HARQ retransmissions, CCA 215-b may be performed based on the second energy detection threshold. The second energy detection threshold may be adjusted to provide a minimum signal-to-interference plus-noise ratio (SINR) to accommodate fixed modulation and decoding scheme (MCS) constraints for HARQ retransmissions.

[0087] In some instances, a UE-initiated COT based on a second energy detection threshold may have a higher probability of successful downlink HARQ retransmission compared to a BS-initiated COT with a CSI report. For example, the second energy detection threshold may be lower than the basic energy detection threshold, causing UE 115-a to pass CCA 215 only when interference is very low or nonexistent. In some instances, BS 105-a may transmit an indication of the second energy detection threshold to UE 115-a via DCI (such as DCI 205), RRC configuration signaling, system information (such as RMSI), or any combination thereof. Alternatively or additionally, UE 115-a may be pre-configured with energy detection threshold adjustment, for example, via the specifications of network architecture 200.

[0088] When UE 115-a passes CCA 215, UE 115-a can obtain a channel (or media) and initiate COT 220. For example, UE 115-a can perform CCA 215-b before uplink transmission opportunity 210-b, and CCA 215-b can be successful. As part of COT 220, UE 115-a can transmit receiver-side auxiliary information on the uplink shared channel during uplink transmission opportunity 210-b. In some instances, uplink shared channel transmission during uplink transmission opportunity 210-b can be the same as or similar to an acknowledgement of pre-permission, indicating that UE 115-a has initiated COT 220. In some instances, uplink shared channel transmission can share COT 220 with BS 105-a, making COT 220 a shared COT for both uplink and downlink, or COT 220 can be used for both uplink and downlink shared channel transmission. In some instances, uplink transmission opportunity 210-b can be a configured permitted opportunity. In some instances, uplink transmission opportunity 210-b can be scheduled by DCI as one of multiple uplink data transmission opportunities or one of multiple SRS transmission opportunities.

[0089] Receiver-side auxiliary information transmitted during uplink transmission opportunity 210-b may include information for improving communication with BS 105-a. In some instances, receiver-side auxiliary information may include downlink CSI reports, reference signal received power (RSRP) measurements (such as Layer 1 RSRP measurements), SINR measurements (such as Layer 1 SINR measurements), or any combination thereof. Alternatively or additionally, receiver-side information may include requests for downlink rank (such as rank indicator RI), requests for one or more downlink beams (such as beam failure request BFR), or any combination thereof. In some instances, a request for downlink rank may be an indication of downlink rank, and a request for one or more downlink beams may be an indication of one or more downlink beams. One or more requested downlink beams may be determined based on characteristics used to clear the directional sensing unit of CCA 215-b. In some instances, receiver-side auxiliary information may indicate the duration of the requested COT. For example, the channel access priority or energy detection threshold used in CCA 215-a can change the allowed COT duration, and UE 115-a can indicate the requested COT duration based on this change. In some instances, receiver-side auxiliary information may include an uplink buffer status report (BSR) or a requested downlink portion of COT 220, or both. For example, the remainder of COT 220 (such as the exterior of the downlink portion) can be scheduled by BS 105-a for uplink data.

[0090] BS 105-a can receive receiver-side auxiliary information on the uplink shared channel during uplink transmission opportunity 210-b. Based on receiving receiver-side auxiliary information on the uplink shared channel, BS 105-a can determine that UE 115-a has initiated COT 220. UE 115-a can share COT 220 with BS 105-a by transmitting to BS 105-a during uplink transmission opportunity 210-b in COT 220. BS 105-a can process receiver-side auxiliary information and, in some instances, apply receiver-side auxiliary information to transmit downlink data 225.

[0091] BS 105-a can schedule downlink data 225 based on the configuration or rule set used for COT 220. BS 105-a can transmit downlink data 225 to UE 115-a according to the schedule during COT 220. In some instances, downlink data may include HARQ retransmission. UE 115-a can monitor downlink data 225 during the downlink portion of COT 220. UE 115-a can transmit feedback 230 to BS 105-a regarding downlink data 225, such as acknowledgment of HARQ feedback.

[0092] Figure 3 illustrates an example of a network architecture 300 that supports receiver-side auxiliary information using multiple uplink transmission opportunities. The network architecture 300 illustrates communication between UE 115-b and BS 105-b (which may be corresponding instances of UE 115 and BS 105 as described with reference to Figures 1 and 2).

[0093] UE 115-b and BS 105-b can communicate using unlicensed radio frequency spectrum. UE 115-b and BS 105-b can support the technology of sharing the UE-initiated COT 320 with BS 105-b for downlink data transmission. Network architecture 300 illustrates an instance of configured permission, which allocates a set of configured permission times 310. UE 115-b can perform CCA 315 before the configured permission time 310, and if successful, sends receiver-side assistance information and shares the UE-initiated COT 320 with BS 105-b. CCA 315 can be an instance of the CCA check or CCA procedure described herein.

[0094] UE 115-b can receive indications of a set or multiple uplink access opportunities. For example, UE 115-b can receive configured access via an RRC signal indicating a set of configured access opportunities. BS 105-b can transmit DCI 305 (such as DCI 305-a) to enable configured access. In some instances, short control signaling transmissions (e.g., less than 10 ms) can be performed by BS 105-b without sensing the channel. For example, BS 105-b can transmit DCI 305-a without sensing the channel, causing UE 115-b to fail to receive DCI 305-a (e.g., due to interference transmissions on the channel). When configured access is active, UE 115-b can perform CCA 315 before each configured access opportunity to attempt to gain access to the channel (or media). In some instances, DCI 305 can be an instance of DCI-assisted or DCI-enabled receiver configured for Type 2. DCI 305 can be the same as or similar to pre-permission, which can be used to determine whether the receiver-side channel at UE 115-b is available for data reception.

[0095] In some instances, BS 105-b may transmit repetitions of DCI 305. For example, UE 115-b may experience interference from an aggressor device, which could affect the reception or decoding of DCI 305. Due to the interference, some repetitions of DCI 305 (such as DCI 305-a) may not be correctly decoded by UE 115-b. BS 105-b may transmit a set of repetitions of DCI 305 to increase the likelihood of UE 115-b successfully receiving DCI 305. For example, UE 115-b may correctly decode later repetitions, such as DCI 305-b. In some instances, UE 115-b may successfully decode DCI 305-b based on the aggressor device ceasing its interfering transmissions. Alternatively, UE 115-b may use previously transmitted repetitions to successfully decode DCI 305-b. Repeated receiver-assisted DCI transmissions to enable receiver-assisted configured permissions can increase the robustness of the DCI 305.

[0096] UE 115-b can initiate COT 320 based on a successful CCA (such as CCA 315) performed in conjunction with a configured grant timing 310. UE 115-b can transmit receiver-side assistance information on the uplink shared channel during COT 320 at the configured grant timing 310, indicating COT 320. In some instances, the uplink shared channel transmission during the configured grant timing 310 can resemble an acknowledgment of pre-grant, indicating that UE 115-b has initiated COT 320. In some instances, the uplink shared channel transmission during the configured grant timing 310 can include acknowledgment for each repeated receiver-side assistance DCI (such as DCI 305). For example, UE 115-b can transmit a single MAC CE to acknowledge each repeated receiver-side assistance DCI. In some implementations, uplink shared channel transmission can share COT 320 with BS 105-b, making COT 320 a shared COT for both uplink and downlink, or COT 320 can be used for both uplink and downlink shared channel transmission. Receiver-side auxiliary information transmitted during the configured allowable timing 310 may include information for improving communication with BS 105-b.

[0097] In some instances, uplink shared channel transmissions during the configured permissive timing 310 may not include payload (such as control information only). For example, UE 115-b may transmit receiver-side auxiliary information without payload during the configured permissive timing 310. In some instances, uplink shared channel transmissions during the configured permissive timing 310 may include UE 115-b performing uplink control information transmission on the PUSCH.

[0098] BS 105-b can receive receiver-side auxiliary information and begin processing it. Based on receiving receiver-side auxiliary information on the uplink shared channel, BS 105-b can determine that UE 115-b has initiated COT 320.

[0099] In some instances, BS 105-b may have a processing delay of 335 to fully process the receiver-side auxiliary information. For example, BS 105-b may not be able to process the receiver-side auxiliary information until the processing delay of 335 has elapsed. However, BS 105-b can begin transmitting downlink data 325 as soon as the downlink portion of COT 320 begins. In some instances, BS 105-b may use a set of preset values ​​340 to transmit downlink data 325 until the processing delay of 335 ends. For example, BS 105-b may use previously configured beams, ranks, etc., which may have been used in previous transmissions to UE 115-b. Once the receiver-side auxiliary information has been processed, BS 105-b may use values ​​decoded from the receiver-side auxiliary information to transmit downlink data 325. For example, BS 105-b may switch to transmitting using the requested beam indicated by the receiver-side auxiliary information after the processing delay of 335.

[0100] UE 115-b can monitor downlink shared channel transmission during COT based on receiver-side auxiliary information. For example, UE 115-b can monitor downlink data 325 during the downlink portion of COT 320. UE 115-b can transmit feedback 330 for downlink data 325, such as HARQ acknowledgment feedback, to BS 105-b. In some instances, UE 115-b can monitor downlink data 325 based on a set of preset values ​​340 until processing delay 335 has elapsed. UE 115-b can monitor downlink data 325 using a configuration based on decoded value 345 or information included in the receiver-side auxiliary information.

[0101] In some instances, configured allowances can have a low cycle to provide more frequent attempts to the UE 115-b when COT 320 is obtained. However, the BS 105-b may need to be able to receive at every configured allowance opportunity. In some instances, the radio communication systems described herein (such as network architecture 300) can support a lower priority level for configured allowances associated with receiver-side assistance information. Assigning a lower priority level to configured allowances for receiver-side assistance information allows the BS 105-b to override configured allowance opportunities by transmitting a slot format indicator (SFI) with a higher priority. For example, configured allowances can be set to a configured allowance configuration priority other than "1" (such as being configured with a low priority). This allows for a low cycle for configured allowances for receiver-side assistance information without requiring the BS 105-b to be available for every configured allowance opportunity. For example, if BS 105-b has overlapping communication with a configured allowable timing, BS 105-b can transmit an SFI to UE 115-b to disable the configured allowable timing. UE 115-b can skip the configured allowable timing and perform CCA at a subsequent configured allowable timing. The SFI can be signaled via a DCI sent to a slot-formatted radio network temporary identifier (SF-RNTI) to override the configured uplink slot. In some instances, short control signaling transmissions (e.g., less than 10 ms) (such as a DCI carrying an SFI) can be performed by BS 105-b without sensing the channel. In other instances, BS 105-b can use an SFI to enable or disable a configured allowable timing.

[0102] Figure 4 illustrates an example of a network architecture 400 that supports receiver-side auxiliary information using multiple uplink transmission opportunities. The network architecture 400 illustrates communication between UE 115-c and BS 105-c (which may be corresponding instances of UE 115 and BS 105 as described herein).

[0103] UE 115-c and BS 105-c can communicate using unlicensed radio frequency spectrum. UE 115-c and BS 105-c can support techniques for downlink data transmission from BS 105-c using UE-initiated COT. To initiate COT, UE 115-c can (successfully) perform CCA and transmit to BS 105-c on the uplink shared channel. UE 115-c can include receiver-side auxiliary information in uplink shared channel transmissions. Network architecture 400 illustrates an example of using time slot aggregation to provide a set of uplink transmission opportunities for transmitting receiver-side auxiliary information.

[0104] In an example, UE 115-c may receive an indication of a set of uplink transmission opportunities 410. For example, the set of uplink transmission opportunities 410 may include uplink transmission opportunities 410-a, 410-b, and 410-c. In some instances, UE 115-c may receive a DCI 405 that schedules the set of uplink transmission opportunities 410 (such as a DCI 405 including dynamic allowance with an aggregation factor). For example, DCI 405 may schedule multiple repetitions of transport blocks transmitted by UE 115-c, thereby implementing the slot aggregation technique described herein. In other instances, DCI 405 may schedule multiple SRS transmissions by UE 115-c during the set of uplink transmission opportunities 410 (such as a DCI 405 including an SRS resource indicator). In some instances, DCI 405 may be similar to the pre-allowance described herein.

[0105] UE 115-c may perform a (successful) CCA 415, such as CCA 415-a or CCA 415-b, prior to uplink transmission opportunity 410. In some cases, UE 115-c may perform at least one CCA procedure (such as CCA 415) for at least one uplink transmission opportunity 410 in the set of uplink transmission opportunities 410 based on DCI 405. If the CCA 415 prior to uplink transmission opportunity 410 fails or is unsuccessful, UE 115-c may not transmit on the corresponding uplink transmission opportunity 410. For example, UE 115-c may perform CCA 415-a prior to uplink transmission opportunity 410-a, and CCA 415-a may fail due to interference from neighboring devices. Due to the failed CCA, UE 115-c may not obtain channel media, and UE 115-c may not transmit during uplink transmission opportunity 410-a.

[0106] When UE 115-c passes CCA 415, for example, if CCA 415 is successful, UE 115-c can obtain a channel (such as a media) and initiate COT 420. For example, UE 115-c can perform CCA 415-b before uplink transmission opportunity 410-b, and CCA 415-b can be successful. As part of COT 420, UE 115-c can transmit receiver-side auxiliary information on the uplink shared channel at uplink transmission opportunity 410-b. In some instances, uplink shared channel transmission during uplink transmission opportunity 410-b can resemble an acceptance of pre-permission, indicating that UE 115-c has initiated COT 420. In some instances, uplink shared channel transmission can share COT 420 with BS 105-c, making COT 420 a shared COT for both uplink and downlink, or COT 420 can be used for both uplink shared channel transmission and downlink shared channel transmission.

[0107] In some instances, UE 115-c may transmit SRS at uplink transmission opportunity 410-b. For example, BS 105-c may use permission to trigger UE 115-c to perform a CCA check (such as CCA 415) for SRS transmission. BS 105-c may detect SRS transmission as a condition for sharing the UE-initiated COT for downlink data transmission. For example, dynamically triggered SRS (such as SRS transmitted during uplink transmission opportunity 410-b) may be used to indicate the UE-initiated COT and share the UE-initiated COT with BS 105-c.

[0108] Receiver-side auxiliary information transmitted during uplink transmission opportunity 410-b may include information for improving communication with BS 105-c. In some instances, UE 115-c may transmit on the PUSCH during any subsequent uplink transmission opportunity 410. For example, after passing CCA 415-b (e.g., when CCA 415-b is successful), UE 115-c may be scheduled for both uplink transmission opportunities 410-b and 410-c. UE 115-c may send uplink shared channel transmissions during both uplink transmission opportunities 410-b and 410-c. In some instances, UE 115-c may send receiver-side auxiliary information on both remaining uplink transmission opportunities 410. The downlink portion of COT 420 may be scheduled within the remaining portion of COT 420 after the set of uplink transmission opportunities 410. In some other instances, UE 115-c can transmit receiver-side auxiliary information once, and BS 105-c can use the remainder of COT 420 for the downlink portion to transmit downlink data 425.

[0109] In some instances, UE 115-c may not use subsequent uplink transmission opportunities 410. For example, UE 115-c may transmit on uplink transmission opportunity 410-b instead of uplink transmission opportunity 410-c. In some cases, UE 115-c may cancel subsequent uplink transmission opportunities, such as uplink transmission opportunity 410-c. For example, UE 115-c may cancel pending scheduling requests (SRs) when uplink shared channel transmission in uplink transmission opportunity 410-b can accommodate all pending data. In some instances, BS 105-c may reuse resources canceled by UE 115-c for downlink signaling. For example, after receiving receiver-side assistance information at uplink transmission opportunity 410-b, BS 105-c can determine that UE 115-c has canceled or will not use any of the subsequent uplink transmission opportunities in COT 420, and BS 105-c can use more of COT 420 for downlink transmission.

[0110] BS 105-c can receive receiver-side auxiliary information on the uplink shared channel during uplink transmission opportunity 410-b. Based on receiving transmissions on the uplink shared channel, BS 105-c can determine that UE 115-c has initiated COT 420. BS 105-c can process the receiver-side auxiliary information and, in some instances, apply the receiver-side auxiliary information to downlink data 425.

[0111] BS 105-c can schedule downlink data 425 based on the configuration or rule set used for COT 420. For example, BS 105-c can transmit downlink data 425 during a configured downlink portion of COT 420. In some instances, the downlink portion of COT 420 can be indicated by receiver-side auxiliary information. BS 105-c can transmit downlink data 425 to UE 115-c according to the schedule during COT 420. In some instances, downlink data may include HARQ retransmission. UE 115-c can monitor downlink data 425 during the downlink portion of COT 420. UE 115-c can transmit feedback 430 to BS 105-c regarding downlink data 425, such as acknowledging HARQ feedback.

[0112] Figure 5 illustrates a system 500 including a device 505 supporting receiver-side auxiliary information using multiple uplink transmission opportunities. Device 505 may be an example of or include elements of a UE 115 as described herein (including with reference to Figures 1-5). Device 505 may wirelessly communicate with one or more BS 105s, UE 115s, or any combination thereof. Device 505 may include elements for bidirectional voice and data communication, including elements for transmitting and receiving communications, such as a communication manager 520, an input / output (I / O) controller 510, a transceiver 515, an antenna 525, a memory 530, a code 535, and a processor 540. These elements may communicate electronically or otherwise (e.g., operational ground, communication ground, functional ground, electronic ground, electrical ground) via one or more buses (e.g., bus 545).

[0113] According to the examples disclosed herein, the communication manager 520 can support wireless communication at the UE. The communication manager 520 can be configured or otherwise supported to support components for receiving indications of a set or plurality of uplink transmission opportunities. The communication manager 520 can be configured or otherwise supported to support components for initiating COT based on a successful CCA performed prior to a first uplink transmission opportunity in the set of multiple uplink transmission opportunities. The communication manager 520 can be configured or otherwise supported to support components for transmitting receiver-side auxiliary information during a first uplink transmission opportunity on an uplink shared channel in the shared spectrum, the receiver-side auxiliary information indicating the initiation of COT. The communication manager 520 can be configured or otherwise supported to support components for monitoring downlink shared channel transmissions in the shared spectrum during COT based on receiver-side auxiliary information.

[0114] In some instances, to support the transmission of receiver-side auxiliary information, the communication manager 520 may be configured or otherwise support components for transmitting receiver-side auxiliary information on the uplink shared channel at each of the remaining uplink transmission opportunities in a set of multiple uplink transmission opportunities, wherein monitoring of downlink shared channel transmission occurs after the set of multiple uplink transmission opportunities.

[0115] In some instances, the communication manager 520 may be configured or otherwise supported to include components for canceling remaining uplink transmission opportunities from a set of multiple uplink transmission opportunities based on the output of receiver-side auxiliary information on the uplink shared channel. In some instances, the communication manager 520 may be configured or otherwise supported to include components for monitoring downlink shared channel transmissions at least in part during the canceled remaining uplink transmission opportunities.

[0116] In some instances, to support the transmission of receiver-side auxiliary information, the communication manager 520 can be configured or otherwise support components for transmitting SRS including receiver-side auxiliary information on the uplink shared channel.

[0117] In some instances, the communication manager 520 may be configured or otherwise supported to receive instructions for energy detection threshold adjustment via DCI, RRC signaling, system information signaling, or any combination thereof, wherein a successful CCA is performed in accordance with the energy threshold detection adjustment.

[0118] In some instances, the Communication Manager 520 can be configured or otherwise supported for use in downlink shared channel transmissions, which is a component for determining the power detection threshold for downlink HARQ retransmissions, where a successful CCA is performed based on the power detection threshold.

[0119] In some instances, the communication manager 520 may be configured or otherwise supported to receive indications of energy detection thresholds via DCI, RRC signaling, system information signaling, or any combination thereof.

[0120] In some instances, receiver-side auxiliary information includes CSI reports, RSRP measurements, SINR measurements, requested downlink rank indications, requested beam indications, requested COT duration indications, uplink buffer status reports, requested downlink portions of COT, or any combination thereof.

[0121] In some instances, to support monitoring of downlink shared channel transmissions, the communication manager 520 may be configured or otherwise supported to support components for receiving a first portion of the downlink shared channel transmission based on a preset configuration. In some instances, to support monitoring of downlink shared channel transmissions, the communication manager 520 may be configured or otherwise supported to support components for receiving a second portion of the downlink shared channel transmission, including information based on receiver-side auxiliary information, after a delay from the COT based on the processing delay at the BS.

[0122] In some instances, to support receiving instructions for a set of multiple uplink transmission opportunities, the communication manager 520 may be configured or otherwise supported to support components for receiving downlink control information for scheduling a set of multiple uplink transmission opportunities.

[0123] In some instances, to support receiving indications for a set of multiple uplink transmission opportunities, the communication manager 520 may be configured or otherwise supported to support a configured allowable component for receiving indications for a set of multiple configured allowable opportunities, wherein the set of multiple uplink transmission opportunities is a set of multiple configured allowable opportunities.

[0124] In some instances, the communication manager 520 can be configured or otherwise supported for receiving components that enable configured permitted DCIs, where a successful CCA is performed based on receiving the DCI.

[0125] In some instances, the communication manager 520 may be configured or otherwise support components for receiving DCI from a base station. In some instances, the communication manager 520 may be configured or otherwise support components for performing at least one CCA procedure based on DCI for at least one uplink transmission opportunity in a set of multiple uplink transmission opportunities.

[0126] In some instances, the communication manager 520 can be configured or otherwise supported to transmit MAC CE components, including acknowledgment feedback for the DCI, in response to receiving the DCI.

[0127] In some instances, to support receiving enabled configured permitted DCIs, the communication manager 520 may be configured or otherwise support components for detecting multiple repeating sets of enabled configured permitted DCIs, wherein MAC CE indicates acknowledgment feedback for multiple repeating sets of DCIs.

[0128] In some instances, the communication manager 520 may be configured or otherwise support components for receiving a DCI including an SFI indicating a time slot format during a second uplink transmission opportunity, wherein the set of multiple uplink transmission opportunities is associated with a lower priority compared to a DCI including an SFI. In some instances, the communication manager 520 may be configured or otherwise support components for communicating according to the SFI during a second uplink transmission opportunity based on a lower priority of the set of multiple uplink transmission opportunities.

[0129] In some instances, a successful CCA follows one or more unsuccessful CCAs associated with the corresponding uplink transmission opportunity preceding the first uplink transmission opportunity.

[0130] I / O controller 510 can manage input and output signals to device 505. I / O controller 510 can also manage peripheral devices not integrated into device 505. In some instances, I / O controller 510 can represent a physical connection or port to an external peripheral device. In some instances, I / O controller 510 can utilize operating systems such as iOS®, Android®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another known operating system. Alternatively or concurrently, I / O controller 510 can represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some instances, I / O controller 510 can be implemented as part of a processor (such as processor 540). In some instances, a user can interact with device 505 via I / O controller 510 or via hardware controlled by I / O controller 510.

[0131] In some instances, device 505 may include a single antenna 525. However, in other instances, device 505 may have more than one antenna 525, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. Transceiver 515 may communicate bidirectionally via one or more antennas 525, wired or wireless links as described herein. For example, transceiver 515 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. Transceiver 515 may also include a modem for modulating packets, providing modulated packets to one or more antennas 525 for transmission, and demodulating packets received from one or more antennas 525.

[0132] Memory 530 may include random access memory (RAM) and read-only memory (ROM). Memory 530 may store computer-readable, computer-executable code 535, which includes instructions that, when executed by processor 540, cause device 505 to perform the various functions described herein. Code 535 may be stored in non-transitory computer-readable media (such as system memory or other types of memory). In some instances, code 535 may not be directly executable by processor 540, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein. In some instances, memory 530 may also include a basic I / O system (BIOS), which controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0133] In some implementations, processor 540 may be a component of a processing system. A processing system can generally refer to a system or a series of machines or components that receive inputs and process them to produce a set of outputs (which can be passed to other systems or components, such as BS 105). For example, the processing system of BS 105 may refer to a system that includes various other components or sub-components of BS 105.

[0134] The processing system of BS 105 can interface with other components of BS 105, and can process information (such as inputs or signals) received from other components and output information to other components. For example, the chip or modem of BS 105 may include a processing system, a first interface for receiving or acquiring information, and a second interface for outputting, transmitting, or providing information. In some implementations, the first interface may refer to the interface between the processing system of the chip or modem and a receiver, allowing BS 105 to receive information or signal inputs, and information can be transmitted to the processing system. In some implementations, the second interface may refer to the interface between the processing system of the chip or modem and a transmitter, allowing BS 105 to transmit information output from the chip or modem. Those skilled in the art will readily recognize that the second interface can also, or alternatively, acquire or receive information or signal inputs, and the first interface can also, or alternatively, output, transmit, or provide information.

[0135] By including or configuring a communication manager 520 according to an example as described herein, device 505 can support techniques for efficiently sharing the UE startup COT with BS 105. To indicate the UE startup COT, UE 115 can transmit receiver-side assistance information to BS 105 on the uplink shared channel. Receiver-side assistance information can improve the communication quality with BS 105. In some instances,

[0136] In some instances, the communication manager 520 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or in cooperation with transceiver 515, one or more antennas 525, or any combination thereof. Although the communication manager 520 is shown as a separate element, in some instances, one or more functions described with reference to the communication manager 520 may be supported or executed by processor 540, memory 530, code 535, or any combination thereof. For example, code 535 may include instructions executable by processor 540 to cause device 505 to perform various types of receiver-side auxiliary information using multiple uplink transmission opportunities as described herein, or processor 540 and memory 530 may be otherwise configured to perform or support such operations.

[0137] Figure 6 illustrates a block diagram 600 of a device 605 including receiver-side auxiliary information supporting the use of multiple uplink transmission opportunities. Device 605 may be an example of or include elements of a BS 105 as described herein. Device 605 may wirelessly communicate with one or more BS 105s, UE 115s, or any combination thereof. Device 605 may include elements for bidirectional voice and data communications, including elements for transmitting and receiving communications, such as a communications manager 620, a network communications manager 610, a transceiver 615, an antenna 625, a memory 630, a code 635, a processor 640, and an inter-site communications manager 645. These elements may communicate electronically or otherwise (e.g., via one or more buses, such as bus 650) or via operational ground, communications ground, functional ground, electronic ground, or electrical ground.

[0138] According to the examples disclosed herein, the communication manager 620 can support radio communication at the BS. The communication manager 620 can be configured or otherwise supported to support components for transmitting indications of a set of multiple uplink transmission opportunities. The communication manager 620 can be configured or otherwise supported to support components for receiving receiver-side assistance information from the UE on an uplink shared channel in the shared spectrum during a first uplink transmission opportunity in the set of multiple uplink transmission opportunities, the receiver-side assistance information indicating the initiation of COT. The communication manager 620 can be configured or otherwise supported to support components for transmitting downlink shared channel transmissions in the shared spectrum during COT based on the receiver-side assistance information.

[0139] In some instances, to support receiving receiver-side auxiliary information, the communication manager 620 may be configured or otherwise support components for receiving receiver-side auxiliary information on the uplink shared channel at each of the remaining uplink transmission opportunities in a set of multiple uplink transmission opportunities, wherein the transmission of the downlink shared channel occurs after the set of multiple uplink transmission opportunities.

[0140] In some instances, to support receiving receiver-side auxiliary information, the communication manager 620 can be configured or otherwise support components for receiving SRS including receiver-side auxiliary information on the uplink shared channel.

[0141] In some instances, the communication manager 620 may be configured or otherwise support components for transmitting instructions on energy detection threshold adjustments for CCA measurements performed by the UE via DCI, RRC signaling, system information signaling, or any combination thereof.

[0142] In some instances, the communication manager 620 can be configured or otherwise supported as a component for determining the energy detection threshold for CCA measurements performed by the UE based on downlink shared channel transmissions, which is a downlink HARQ retransmission.

[0143] In some instances, the communication manager 620 may be configured or otherwise support components for transmitting indications of energy detection thresholds via DCI, RRC signaling, system information signaling, or any combination thereof.

[0144] In some instances, receiver-side auxiliary information includes CSI reports, RSRP measurements, SINR measurements, requested downlink rank indications, requested beam indications, requested COT duration indications, uplink buffer status reports, requested downlink portions of COT, or any combination thereof.

[0145] In some instances, the communication manager 620 may be configured or otherwise support components for processing receiver-side auxiliary information during the processing delay duration, wherein a first portion of the downlink shared channel transmission is transmitted based on a preset configuration, and a second portion of the downlink shared channel transmission after the processing delay duration is transmitted based on processing receiver-side auxiliary information.

[0146] In some instances, to support the transmission of indications for a set of multiple uplink transmission opportunities, the communication manager 620 may be configured or otherwise support a configured allowable component for transmitting indications for a set of multiple configured allowable opportunities, wherein the set of multiple uplink transmission opportunities is a set of multiple configured allowable opportunities.

[0147] In some instances, the communication manager 620 may be configured or otherwise support components for transmitting configured permitted DCI, wherein auxiliary information on the first receiver side is received based on the transmitted DCI.

[0148] In some instances, the communication manager 620 can be configured or otherwise supported to receive MAC CE components, including acknowledgment feedback for the DCI, in response to the transmission DCI.

[0149] In some instances, to support the transmission of configured permitted DCI, the communication manager 620 may be configured or otherwise support components for transmitting multiple repeating sets of configured permitted DCI, wherein MAC CE indicates an approval feedback for multiple repeating sets of DCI.

[0150] In some instances, the communication manager 620 may be configured or otherwise support components for transmitting a DCI including an SFI indicating a time slot format during a second uplink transmission opportunity, wherein the set of multiple uplink transmission opportunities is associated with a lower priority compared to the DCI including the SFI. In some instances, the communication manager 620 may be configured or otherwise support components for communicating according to the SFI during a second uplink transmission opportunity based on a lower priority of the set of multiple uplink transmission opportunities.

[0151] The network communication manager 610 can manage communication with the core network 130 (e.g., via one or more wired backhaul links). For example, the network communication manager 610 can manage the transmission of data communications to client devices (e.g., one or more UEs 115).

[0152] In some instances, device 605 may include a single antenna 625. However, in other instances, device 605 may have more than one antenna 625, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. Transceiver 615 may communicate bidirectionally via one or more antennas 625, wired or wireless links as described herein. For example, transceiver 615 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. Transceiver 615 may also include a modem for modulating packets, providing modulated packets to one or more antennas 625 for transmission, and demodulating packets received from one or more antennas 625.

[0153] Memory 630 may include RAM and ROM. Memory 630 may store computer-readable, computer-executable code 635, which includes instructions that, when executed by processor 640, cause device 605 to perform the various functions described herein. Code 635 may be stored in non-transitory computer-readable media (such as system memory or other types of memory). In some instances, code 635 may not be directly executable by processor 640, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein. In some instances, memory 630 may also include BIOS, which controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0154] In some implementations, processor 640 may be a component of a processing system. A processing system can generally refer to a system or a series of machines or components that receive inputs and process them to produce a set of outputs (which can be passed to other systems or components, such as BS 105). For example, the processing system of BS 105 can refer to a system that includes various other components or sub-components of BS 105.

[0155] The processing system of BS 105 can interface with other components of BS 105, and can process information (such as inputs or signals) received from other components and output information to other components. For example, the chip or modem of BS 105 may include a processing system, a first interface for receiving or acquiring information, and a second interface for outputting, transmitting, or providing information. In some implementations, the first interface may refer to the interface between the processing system of the chip or modem and a receiver, allowing BS 105 to receive information or signal inputs, and information can be transmitted to the processing system. In some implementations, the second interface may refer to the interface between the processing system of the chip or modem and a transmitter, allowing BS 105 to transmit information output from the chip or modem. Those skilled in the art will readily recognize that the second interface can also, or alternatively, acquire or receive information or signal inputs, and the first interface can also, or alternatively, output, transmit, or provide information.

[0156] Inter-site communication manager 645 can manage communication with other BS 105s and may include a controller or scheduler for cooperating with other BS 105s to control communication with UE 115. For example, inter-site communication manager 645 can coordinate the scheduling of transmissions to UE 115 to implement various interference mitigation techniques such as beamforming or joint transmission. In some instances, inter-site communication manager 645 can provide an X2 interface within LTE / LTE-A radio communication network technology to facilitate communication between BS 105s.

[0157] By including or configuring a communication manager 620 according to the examples described herein, device 605 can support a technique for receiving receiver-side auxiliary information upon receiving an indication of a COT initiated by the UE. The receiver-side auxiliary information can be implemented by device 605 to provide higher quality communication with UE 115. Additionally, sharing the UE-initiated COT ensures that UE 115 is available for downlink reception. For example, uplink shared channel transmission including receiver-side auxiliary information can operate similarly to pre-acceptance in other systems, indicating that UE 115 has successfully performed CCA and acquired the channel media.

[0158] In some instances, the communication manager 620 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or in cooperation with the transceiver 615, one or more antennas 625, or any combination thereof. Although the communication manager 620 is shown as a separate element, in some instances, one or more functions described with reference to the communication manager 620 may be supported or executed by the processor 640, memory 630, code 635, or any combination thereof. For example, code 635 may include instructions executable by the processor 640 to cause the device 605 to perform various types of receiver-side auxiliary information using multiple uplink transmission opportunities as described herein, or the processor 640 and memory 630 may be otherwise configured to perform or support such operations.

[0159] Figure 7 illustrates a flowchart of a method 700 for supporting receiver-side auxiliary information using multiple uplink transmission opportunities. The operation of method 700 can be implemented by a UE or its components as described herein. For example, the operation of method 700 can be performed by a UE 115 as described with reference to Figures 1-5. In some instances, the UE can execute a set of instructions to control the functional elements of the UE to perform the described functions. Alternatively, the UE can use dedicated hardware to perform various forms of the described functions.

[0160] At 705, the method may include the step of receiving an indication of a set of multiple uplink transmission opportunities. The operation of 705 can be performed according to examples as disclosed herein. In some instances, the various forms of operation of 705 can be performed by a communication manager 520 as described with reference to FIG5.

[0161] At 710, the method may include the step of initiating a COT based on a successful CCA performed prior to a first uplink transmission opportunity in a set of multiple uplink transmission opportunities. The operation at 710 can be performed according to examples as disclosed herein. In some instances, the various forms of operation at 710 can be performed by a communication manager 520 as described with reference to FIG5.

[0162] At 715, the method may include the following steps: transmitting receiver-side auxiliary information on the uplink shared channel in the shared spectrum during a first uplink transmission opportunity, the receiver-side auxiliary information indicating the initiation of COT. The operation of 715 can be performed according to examples as disclosed herein. In some examples, various forms of operation of 715 can be performed by a communication manager 520 as described with reference to FIG5.

[0163] At 720, the method may include the following steps: monitoring downlink shared channel transmissions in the shared spectrum during COT based on receiver-side auxiliary information. The operation of 720 can be performed according to examples as disclosed herein. In some instances, various forms of operation of 720 can be performed by a communication manager 520 as described with reference to FIG5.

[0164] Figure 8 illustrates a flowchart of a method 800 for supporting receiver-side auxiliary information using multiple uplink transmission opportunities. The operation of method 800 can be implemented by a UE or its components as described herein. For example, the operation of method 800 can be performed by a UE 115 as described with reference to Figures 1-5. In some instances, the UE can execute a set of instructions to control the functional elements of the UE to perform the described functions. Alternatively, the UE can use dedicated hardware to perform various forms of the described functions.

[0165] At 805, the method may include the step of receiving an indication of a set of multiple uplink transmission opportunities. The operation of 805 can be performed according to examples as disclosed herein. In some instances, the various forms of operation of 805 can be performed by a communication manager 520 as described with reference to FIG5.

[0166] At 810, the method may include the following steps: receiving an instruction for energy detection threshold adjustment via DCI, RRC signal transmission, system information signal transmission, or any combination thereof, wherein a successful CCA is performed based on the energy threshold detection adjustment. The operation of 810 may be performed according to examples as disclosed herein. In some examples, various forms of operation of 810 may be performed by a communication manager 520 as described with reference to FIG5.

[0167] At 815, the method may include the step of initiating a COT based on a successful CCA executed prior to a first uplink transmission opportunity in a set of multiple uplink transmission opportunities. The operation at 815 can be performed according to examples as disclosed herein. In some instances, the various forms of operation at 815 can be performed by a communication manager 520 as described with reference to FIG5.

[0168] At 820, the method may include the following steps: transmitting receiver-side auxiliary information during a first uplink transmission opportunity on an uplink shared channel in the shared spectrum, the receiver-side auxiliary information indicating the initiation of COT. Operation 820 can be performed according to examples as disclosed herein. In some examples, various forms of operation of 820 can be performed by a communication manager 520 as described with reference to FIG5.

[0169] At 825, the method may include the following steps: monitoring downlink shared channel transmissions in the shared spectrum during COT based on receiver-side auxiliary information. The operation of 825 can be performed according to examples as disclosed herein. In some instances, various forms of operation of 825 can be performed by a communication manager 520 as described with reference to FIG5.

[0170] Figure 9 illustrates a flowchart of a method 900 for supporting receiver-side auxiliary information using multiple uplink transmission opportunities. The operation of method 900 can be implemented by a BS or its components as described herein. For example, the operation of method 900 can be performed by a BS 105 as described with reference to Figures 1-4 and Figure 6. In some instances, the BS can execute a set of instructions to control the functional elements of the BS to perform the described functions. Alternatively, the BS can use dedicated hardware to perform various forms of the described functions.

[0171] At 905, the method may include the step of transmitting an indication of a set of multiple uplink transmission opportunities. The operation at 905 can be performed according to examples as disclosed herein. In some instances, the operation at 905 can be performed by a communication manager 620 as described with reference to FIG6.

[0172] At 910, the method may include the following steps: during a first uplink transmission opportunity in a set of multiple uplink transmission opportunities, receiving receiver-side auxiliary information from the UE on an uplink shared channel in a shared spectrum, the receiver-side auxiliary information indicating the initiation of COT. The operation of 910 can be performed according to examples as disclosed herein. In some examples, various forms of operation of 910 can be performed by a communication manager 620 as described with reference to FIG6.

[0173] At 915, the method may include the following steps: transmitting downlink shared channel transmission in the shared spectrum during COT based on receiver-side auxiliary information. The operation of 915 can be performed according to examples as disclosed herein. In some instances, various forms of operation of 915 can be performed by a communication manager 620 as described with reference to FIG6.

[0174] The following provides a summary of the various aspects of this case:

[0175] Sample 1: A method for wireless communication at a UE, comprising the steps of: receiving an indication of a set of multiple uplink transmission opportunities; initiating a Common Off-Track (COT) based on a successful Common Off-Track Action (CCA) performed prior to a first uplink transmission opportunity in the set of multiple uplink transmission opportunities; transmitting receiver-side assistance information on an uplink shared channel in a shared spectrum during the first uplink transmission opportunity, the receiver-side assistance information indicating the initiation of the COT; and monitoring downlink shared channel transmissions in the shared spectrum during the COT based on the receiver-side assistance information.

[0176] State 2: According to the method of State 1, wherein transmitting the receiver-side auxiliary information includes: transmitting the receiver-side auxiliary information on the uplink shared channel at each of the remaining uplink transmission opportunities in the set of multiple uplink transmission opportunities, wherein the monitoring of the downlink shared channel transmission occurs after the set of multiple uplink transmission opportunities.

[0177] State 3: The method according to any one of State 1 to 2 also includes the following steps: canceling the remaining uplink transmission opportunities in the set of multiple uplink transmission opportunities by outputting the receiver-side auxiliary information on the uplink shared channel.

[0178] State 4: According to the method of State 3, the monitoring of the downlink shared channel transmission includes: monitoring the downlink shared channel transmission at least in part during the remaining uplink transmission opportunities that have been cancelled.

[0179] State 5: According to any one of states 1 to 4, the transmission of the receiver-side auxiliary information includes: transmitting an SRS including the receiver-side auxiliary information on the uplink shared channel.

[0180] State 6: The method according to any one of states 1 to 5 also includes the following steps: receiving an instruction for energy detection threshold adjustment via DCI, RRC signal transmission, system information signal transmission or any combination thereof, wherein the successful CCA is performed based on the energy threshold detection adjustment.

[0181] State 7: The method according to any one of states 1 to 6 also includes the following steps: determining an energy detection threshold based on the downlink shared channel transmission being a downlink HARQ retransmission, wherein the successful CCA is performed based on the energy detection threshold.

[0182] State 8: According to the method of State 7, it also includes the following steps: receiving an indication of the energy detection threshold via DCI, RRC signal transmission, system information signal transmission or any combination thereof.

[0183] State 9: According to any one of states 1 to 8, wherein the receiver-side auxiliary information includes CSI report, RSRP measurement, SINR measurement, requested downlink rank indication, requested beam indication, requested COT duration indication, uplink buffer status report, requested downlink portion of the COT, or any combination thereof.

[0184] State 10: The method according to any one of states 1 to 9, wherein monitoring the downlink shared channel transmission includes: receiving a first portion of the downlink shared channel transmission based on a preset configuration; and receiving a second portion of the downlink shared channel transmission, including information based on the receiver-side auxiliary information, after a delay from the COT based on the processing delay at the BS.

[0185] State 11: According to any one of states 1 to 10, receiving the instruction on the set of multiple uplink transmission opportunities includes: receiving downlink control information that schedules the set of multiple uplink transmission opportunities.

[0186] State 12: The method according to any one of states 6 to 11, wherein receiving the indication of the set of the plurality of uplink transmission opportunities includes: receiving a configured permission indicating a set of the plurality of configured permission opportunities, wherein the set of the plurality of uplink transmission opportunities is the set of the plurality of configured permission opportunities.

[0187] Version 13: The method according to Version 12 also includes the following steps: receiving the configured permitted DCI, wherein the successful CCA is performed based on receiving the DCI.

[0188] Version 14: The method according to Version 13 also includes the following steps: in response to receiving the DCI, transmitting a MAC CE including an acknowledgment feedback for the DCI.

[0189] State 15: According to the method of State 14, receiving the configured permitted DCI includes: detecting a plurality of repeating sets of the configured permitted DCI, wherein the MAC CE indicates an approval feedback for the plurality of repeating sets of the DCI.

[0190] Version 16: The method according to any one of versions 1 to 15 also includes the steps of: receiving a DCI including an SFI indicating a time slot format during a second uplink transmission opportunity, wherein the set of multiple uplink transmission opportunities is associated with a lower priority order compared to the DCI including the SFI; and communicating according to the SFI during the second uplink transmission opportunity based on the lower priority order of the set of multiple uplink transmission opportunities.

[0191] State 17: According to the method of any one of states 1 to 16, wherein the successful CCA follows one or more unsuccessful CCAs associated with the corresponding uplink transmission opportunity preceding the first uplink transmission opportunity.

[0192] Sample 18: A method for wireless communication at a BS, comprising the steps of: transmitting an indication of a set of multiple uplink transmission opportunities; receiving receiver-side assistance information from a UE on an uplink shared channel in a shared spectrum during a first uplink transmission opportunity in the set of multiple uplink transmission opportunities, the receiver-side assistance information indicating the initiation of COT; and transmitting downlink shared channel transmission in the shared spectrum during the COT based on the receiver-side assistance information.

[0193] Version 19: According to the method of Version 18, receiving the receiver-side auxiliary information includes: receiving the receiver-side auxiliary information on the uplink shared channel at each of the remaining uplink transmission opportunities in the set of multiple uplink transmission opportunities, wherein the transmission of the downlink shared channel occurs after the set of multiple uplink transmission opportunities.

[0194] State 20: The method according to any one of states 18 to 19, wherein receiving the receiver-side auxiliary information includes: receiving an SRS including the receiver-side auxiliary information on the uplink shared channel.

[0195] State 21: The method according to any one of states 18 to 20 also includes the following steps: transmitting an indication of adjusting the energy detection threshold for CCA measurements performed by the UE via DCI, RRC signal transmission, system information signal transmission or any combination thereof.

[0196] State 22: The method according to any one of states 18 to 21 also includes the following steps: determining the energy detection threshold for CCA measurements performed by the UE based on the downlink shared channel transmission being a downlink HARQ retransmission.

[0197] State 23: The method according to State 22 also includes the following steps: transmitting an indication of the energy detection threshold via DCI, RRC signal transmission, system information signal transmission or any combination thereof.

[0198] Sample 24: The method according to any one of Samples 18 to 23, wherein the receiver-side auxiliary information includes CSI report, RSRP measurement, SINR measurement, requested downlink rank indication, requested beam indication, requested COT duration indication, uplink buffer status report, requested downlink portion of the COT, or any combination thereof.

[0199] Version 25: The method according to any one of versions 18 to 24 also includes the following steps: processing the receiver-side auxiliary information during the processing delay duration, wherein a first portion of the downlink shared channel transmission is transmitted based on a preset configuration, and a second portion of the downlink shared channel transmission after the processing delay duration is transmitted based on processing the receiver-side auxiliary information.

[0200] Version 26: The method according to any one of versions 23 to 25, wherein the transmission of the indication of the set of multiple uplink transmission opportunities includes: the transmission indicating the configured allowance of the set of multiple configured allowable opportunities, wherein the set of multiple uplink transmission opportunities is the set of multiple configured allowable opportunities.

[0201] Version 27: The method according to Version 26 also includes the following steps: transmitting the configured permitted DCI, wherein auxiliary information on the first receiver side is received based on the transmission of the DCI.

[0202] Version 28: The method according to Version 27 also includes the following steps: receiving a MAC CE in response to the transmission of the DCI, including an acknowledgment feedback for the DCI.

[0203] Version 29: According to the method of Version 28, wherein enabling the configured permitted DCI includes: enabling a plurality of repeating sets of the configured permitted DCI, wherein the MAC CE indicates an approval feedback for the plurality of repeating sets of the DCI.

[0204] Version 30: The method according to any one of versions 18 to 29 also includes the following steps: transmitting a DCI including an SFI indicative time slot format during a second uplink transmission opportunity, wherein the set of multiple uplink transmission opportunities is associated with a lower priority order compared to the DCI including the SFI; and communicating according to the SFI during the second uplink transmission opportunity based on the lower priority order of the set of multiple uplink transmission opportunities.

[0205] Example 31: An apparatus for wireless communication at a UE, comprising a first interface, a second interface, and a processing system configured to cause the apparatus to perform the following operations: obtaining an indication of a set of multiple uplink transmission opportunities; initiating a Common Over-The-Air (COT) based on a successful Common Access Caution (CCA) performed prior to a first uplink transmission opportunity in the set of multiple uplink transmission opportunities; outputting receiver-side assistance information on an uplink shared channel in a shared spectrum during the first uplink transmission opportunity, the receiver-side assistance information indicating the initiation of the COT; and monitoring downlink shared channel transmissions in the shared spectrum during the COT based on the receiver-side assistance information.

[0206] State 32: The apparatus according to State 31, wherein the second interface is also configured to output the receiver-side auxiliary information on the uplink shared channel at each of the remaining uplink transmission opportunities in the set of multiple uplink transmission opportunities, wherein the monitoring of the downlink shared channel transmission occurs after the set of multiple uplink transmission opportunities.

[0207] State 33: An apparatus according to any one of states 31 to 32, wherein the processing system is also configured to: cancel the remaining uplink transmission opportunities in the set of the plurality of uplink transmission opportunities based on outputting the receiver-side auxiliary information on the uplink shared channel.

[0208] State 34: According to the apparatus of State 33, the processing system is also configured to: monitor the downlink shared channel transmission at least in part during the remaining uplink transmission opportunities that have been cancelled.

[0209] State 35: A device according to any one of states 31 to 34, wherein the second interface is also configured to output an SRS including the receiver-side auxiliary information on the uplink shared channel.

[0210] State 36: A device according to any one of states 31 to 35, wherein the first interface is also configured to: obtain an indication of energy detection threshold adjustment via DCI, RRC signal transmission, system information signal transmission or any combination thereof, wherein the successful CCA is performed based on the energy threshold detection adjustment.

[0211] State 37: The apparatus according to any one of states 31 to 36, wherein the processing system is also configured to: determine an energy detection threshold based on the downlink shared channel transmission being a downlink HARQ retransmission, wherein the successful CCA is performed based on the energy detection threshold.

[0212] State 38: The device according to state 37, wherein the first interface is also configured to obtain an indication of the energy detection threshold via DCI, RRC signal transmission, system information signal transmission or any combination thereof.

[0213] State 39: A device according to any one of states 31 to 38, wherein the receiver-side auxiliary information includes a CSI report, an RSRP measurement, a SINR measurement, a requested downlink rank indication, a requested beam indication, a requested COT duration indication, an uplink buffer status report, a requested downlink portion of the COT, or any combination thereof.

[0214] State 40: A device according to any one of states 31 to 39, wherein the first interface is also configured to: obtain a first portion of the downlink shared channel transmission based on a preset configuration; and obtain a second portion of the downlink shared channel transmission, including information based on the receiver-side auxiliary information, after a delay from the COT based on the processing delay at the BS.

[0215] State 41: A device according to any one of states 31 to 40, wherein the first interface is also configured to: obtain downlink control information for scheduling the set of multiple uplink transmission opportunities.

[0216] State 42: A device according to any one of states 36 to 41, wherein the first interface is also configured to: obtain a configured permission indicating a set of a plurality of configured permission opportunities, wherein the set of a plurality of uplink transmission opportunities is the set of a plurality of configured permission opportunities.

[0217] State 43: The apparatus according to state 42, wherein the first interface is also configured to: obtain the configured permitted DCI, wherein the successful CCA is performed based on obtaining the DCI.

[0218] State 44: The apparatus according to State 43, wherein the first interface is also configured to: obtain a MAC CE in response to obtaining the DCI, including acknowledgment feedback for the DCI.

[0219] State 45: The apparatus according to State 44, wherein the processing system is also configured to: detect multiple sets of repeated DCIs that enable the configured permitted DCI, wherein the MAC CE indicates an approval feedback for the multiple sets of repeated DCIs.

[0220] Version 46: An apparatus according to any one of versions 31 to 45, wherein the first interface is also configured to: receive a DCI including an SFI indicating a time slot format during a second uplink transmission opportunity, wherein the set of multiple uplink transmission opportunities is associated with a lower priority order compared to the DCI including the SFI; and the first interface or the second interface is also configured to: communicate according to the SFI during the second uplink transmission opportunity based on the lower priority order of the set of multiple uplink transmission opportunities.

[0221] State 47: A device according to any one of states 31 to 46, wherein the successful CCA follows one or more unsuccessful CCAs associated with a corresponding uplink transmission opportunity preceding the first uplink transmission opportunity.

[0222] Sample 48: An apparatus for wireless communication at a BS, comprising: a first interface configured to: output an indication of a set of multiple uplink transmission opportunities; the first interface or a second interface configured to: obtain receiver-side assistance information from a UE on an uplink shared channel in a shared spectrum during a first uplink transmission opportunity in the set of multiple uplink transmission opportunities, the receiver-side assistance information indicating activation of COT; and the first interface configured to: output downlink shared channel transmission in the shared spectrum during the COT based on the receiver-side assistance information.

[0223] Version 49: The apparatus according to Version 48, wherein the second interface is also configured to: obtain the receiver-side auxiliary information on the uplink shared channel at each of the remaining uplink transmission opportunities in the set of multiple uplink transmission opportunities, wherein the transmission of the downlink shared channel occurs after the set of multiple uplink transmission opportunities.

[0224] State 50: A device according to any one of states 48 to 49, wherein the second interface is also configured to: obtain SRS including the receiver-side auxiliary information on the uplink shared channel.

[0225] State 51: A device according to any one of states 48 to 50, wherein the first interface is also configured to output an indication of adjusting the energy detection threshold for CCA measurements performed by the UE via DCI, RRC signal transmission, system information signal transmission or any combination thereof.

[0226] State 52: A device according to any one of states 48 to 51, wherein the processing system is configured to: determine an energy detection threshold for CCA measurements performed by the UE based on the downlink shared channel transmission being a downlink HARQ retransmission.

[0227] State 53: The device according to state 52, wherein the first interface is also configured to output an indication of the energy detection threshold via DCI, RRC signal transmission, system information signal transmission or any combination thereof.

[0228] State 54: A device according to any one of states 48 to 53, wherein the receiver-side auxiliary information includes a CSI report, RSRP measurement, SINR measurement, requested downlink rank indication, requested beam indication, requested COT duration indication, uplink buffer status report, requested downlink portion of the COT, or any combination thereof.

[0229] State 55: An apparatus according to any one of states 48 to 54, wherein the processing system is configured to process the receiver-side auxiliary information during the processing delay duration, wherein a first portion of the downlink shared channel transmission is output based on a preset configuration, and a second portion of the downlink shared channel transmission after the processing delay duration is output based on processing the receiver-side auxiliary information.

[0230] State 56: A device according to any one of states 48 to 55, wherein the first interface is also configured to: output a configured permission indicating a set of a plurality of configured permission opportunities, wherein the set of a plurality of uplink transmission opportunities is the set of a plurality of configured permission opportunities.

[0231] State 57: The device according to State 56, wherein the first interface is also configured to output the configured permitted DCI, wherein the first receiver-side auxiliary information is obtained based on the output of the DCI.

[0232] State 58: The device according to State 57, wherein the second interface is also configured to: respond to the output of the DCI to obtain a MAC CE including acknowledgment feedback for the DCI.

[0233] State 59: The apparatus according to State 58, wherein the first interface is also configured to: output a plurality of repeating sets of the configured permitted DCI, wherein the MAC CE indicates an approval feedback for the plurality of repeating sets of the DCI.

[0234] Version 60: An apparatus according to any one of versions 48 to 59, wherein the first interface is also configured to: output a DCI including an SFI in an indication time slot format during a second uplink transmission opportunity, wherein the set of multiple uplink transmission opportunities is associated with a lower priority order compared to the DCI including the SFI; and the first interface or the second interface is also configured to: communicate according to the SFI during the second uplink transmission opportunity based on the lower priority order of the set of multiple uplink transmission opportunities.

[0235] Sample 61: An apparatus for wireless communication at a UE, comprising: means for receiving an indication of a set of multiple uplink transmission opportunities; means for initiating a COT based on a successful CCA performed prior to a first uplink transmission opportunity in the set of multiple uplink transmission opportunities; means for transmitting receiver-side auxiliary information on an uplink shared channel in a shared spectrum during the first uplink transmission opportunity, the receiver-side auxiliary information indicating the initiation of the COT; and means for monitoring downlink shared channel transmission in the shared spectrum during the COT based on the receiver-side auxiliary information.

[0236] Version 62: The apparatus according to Version 61, wherein the component for transmitting the receiver-side auxiliary information includes: a component for transmitting the receiver-side auxiliary information on the uplink shared channel at each of the remaining uplink transmission opportunities in the set of multiple uplink transmission opportunities, wherein the monitoring of the downlink shared channel transmission occurs after the set of multiple uplink transmission opportunities.

[0237] Version 63: The apparatus according to any one of versions 61 to 62 also includes: a component for canceling remaining uplink transmission opportunities in the set of the plurality of uplink transmission opportunities based on outputting the receiver-side auxiliary information on the uplink shared channel.

[0238] Version 64: The apparatus according to Version 63, wherein the component for monitoring the downlink shared channel transmission includes: a component for monitoring the downlink shared channel transmission at least partially during the cancelled remaining uplink transmission opportunities.

[0239] Version 65: The apparatus according to any one of versions 61 to 64, wherein the component for transmitting the receiver-side auxiliary information includes: a component for transmitting SRS including the receiver-side auxiliary information on the uplink shared channel.

[0240] State 66: The apparatus according to any one of states 61 to 65 also includes: a component for receiving an instruction for energy detection threshold adjustment via DCI, RRC signal transmission, system information signal transmission or any combination thereof, wherein the successful CCA is performed based on the energy threshold detection adjustment.

[0241] State 67: The apparatus according to any one of states 61 to 66 also includes: a component for determining an energy detection threshold based on the downlink shared channel transmission being a downlink HARQ retransmission, wherein the successful CCA is performed based on the energy detection threshold.

[0242] State 68: The apparatus according to State 67 also includes: a component for receiving an indication of the energy detection threshold via DCI, RRC signal transmission, system information signal transmission or any combination thereof.

[0243] State 69: A device according to any one of states 61 to 68, wherein the receiver-side auxiliary information includes a CSI report, an RSRP measurement, a SINR measurement, a requested downlink rank indication, a requested beam indication, a requested COT duration indication, an uplink buffer status report, a requested downlink portion of the COT, or any combination thereof.

[0244] State 70: The apparatus according to any one of states 61 to 69, wherein the component for monitoring the downlink shared channel transmission includes: a component for receiving a first portion of the downlink shared channel transmission based on a preset configuration; and a component for receiving a second portion of the downlink shared channel transmission, including information based on the receiver-side auxiliary information, after a delay from the COT based on the processing delay at the BS.

[0245] State 71: The apparatus according to any one of states 61 to 70, wherein the component for receiving the indication of the set of multiple uplink transmission opportunities includes: a component for receiving downlink control information for scheduling the set of multiple uplink transmission opportunities.

[0246] Version 72: An apparatus according to any one of versions 66 to 71, wherein the component for receiving the indication of the set of the plurality of uplink transmission opportunities includes: a configured allowable component for receiving an indication of the set of the plurality of configured allowable opportunities, wherein the set of the plurality of uplink transmission opportunities is the set of the plurality of configured allowable opportunities.

[0247] Version 73: The apparatus according to version 72 also includes: a component for receiving the configured permitted DCI, wherein the successful CCA is performed based on receiving the DCI.

[0248] Version 74: The apparatus according to version 73 also includes: a component for transmitting a MAC CE including an acknowledgment feedback for the DCI in response to receiving the DCI.

[0249] Version 75: The apparatus according to version 74, wherein the component for receiving the configured permitted DCI includes: a component for detecting a plurality of repeating sets of the configured permitted DCI, wherein the MAC CE indicates an approval feedback for the plurality of repeating sets of the DCI.

[0250] Version 76: The apparatus according to any one of versions 61 to 75 also includes: a component for receiving a DCI including an SFI indicating a time slot format during a second uplink transmission opportunity, wherein the set of multiple uplink transmission opportunities is associated with a lower priority order compared to the DCI including the SFI; and a component for communicating according to the SFI during the second uplink transmission opportunity based on the lower priority order of the set of multiple uplink transmission opportunities.

[0251] State 77: A device according to any one of states 61 to 76, wherein the successful CCA follows one or more unsuccessful CCAs associated with a corresponding uplink transmission opportunity preceding the first uplink transmission opportunity.

[0252] Sample 78: An apparatus for wireless communication at a BS, comprising: means for transmitting an indication of a set of multiple uplink transmission opportunities; means for receiving receiver-side assistance information from a UE on an uplink shared channel in a shared spectrum during a first uplink transmission opportunity in the set of multiple uplink transmission opportunities, the receiver-side assistance information indicating the initiation of COT; and means for transmitting downlink shared channel transmission in the shared spectrum during the COT based on the receiver-side assistance information.

[0253] Version 79: The apparatus according to Version 78, wherein the component for receiving the receiver-side auxiliary information includes: a component for receiving the receiver-side auxiliary information on the uplink shared channel at each of the remaining uplink transmission opportunities in the set of multiple uplink transmission opportunities, wherein the transmission of the downlink shared channel occurs after the set of multiple uplink transmission opportunities.

[0254] Version 80: An apparatus according to any one of versions 78 to 79, wherein the component for receiving the receiver-side auxiliary information includes: a component for receiving SRS including the receiver-side auxiliary information on the uplink shared channel.

[0255] State 81: The apparatus according to any one of states 78 to 80 also includes: a component for transmitting an indication of an adjustment of the energy detection threshold for CCA measurements performed by the UE via DCI, RRC signal transmission, system information signal transmission or any combination thereof.

[0256] State 82: The apparatus according to any one of states 78 to 81 also includes: a component for determining an energy detection threshold for CCA measurements performed by the UE based on the downlink shared channel transmission being a downlink HARQ retransmission.

[0257] State 83: The apparatus according to state 82 also includes: a component for transmitting an indication of the energy detection threshold via DCI, RRC signal transmission, system information signal transmission or any combination thereof.

[0258] State 84: A device according to any one of states 78 to 83, wherein the receiver-side auxiliary information includes a CSI report, RSRP measurement, SINR measurement, requested downlink rank indication, requested beam indication, requested COT duration indication, uplink buffer status report, requested downlink portion of the COT, or any combination thereof.

[0259] Version 85: The apparatus according to any one of versions 78 to 84 also includes: a component for processing the receiver-side auxiliary information during the processing delay duration, wherein a first portion of the downlink shared channel transmission is transmitted based on a preset configuration, and a second portion of the downlink shared channel transmission after the processing delay duration is transmitted based on processing the receiver-side auxiliary information.

[0260] Version 86: An apparatus according to any one of versions 78 to 85, wherein the component for transmitting the indication of the set of the plurality of uplink transmission opportunities includes: a configured allowable component for transmitting an indication of the set of the plurality of configured allowable opportunities, wherein the set of the plurality of uplink transmission opportunities is the set of the plurality of configured allowable opportunities.

[0261] Version 87: The apparatus according to version 86 also includes: a component for transmitting enabling the configured permitted DCI, wherein auxiliary information on the first receiver side is received based on transmitting the DCI.

[0262] Version 88: The apparatus according to version 87 also includes: a component for receiving a MAC CE including an acknowledgment feedback for the DCI in response to the transmission of the DCI.

[0263] Version 89: The apparatus according to Version 88, wherein the component for transmitting the configured permitted DCI includes: a component for transmitting a plurality of repeating sets of the configured permitted DCI, wherein the MAC CE indicates an approval feedback for the plurality of repeating sets of the DCI.

[0264] Version 90: The apparatus according to any one of versions 78 to 89 also includes: a component for transmitting a DCI including an SFI indicative time slot format during a second uplink transmission opportunity, wherein the set of multiple uplink transmission opportunities is associated with a lower priority order compared to the DCI including the SFI; and a component for communicating according to the SFI during the second uplink transmission opportunity based on the lower priority order of the set of multiple uplink transmission opportunities.

[0265] Sample 91: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code including instructions executable by a processor to perform the following operations: receiving an indication of a set of multiple uplink transmission opportunities; initiating a COT based on a successful CCA executed prior to a first uplink transmission opportunity in the set of multiple uplink transmission opportunities; transmitting receiver-side auxiliary information on an uplink shared channel in the shared spectrum during the first uplink transmission opportunity, the receiver-side auxiliary information indicating the initiation of the COT; and monitoring downlink shared channel transmissions in the shared spectrum during the COT based on the receiver-side auxiliary information.

[0266] State 92: According to the non-transitory computer-readable medium of State 91, wherein the instructions for transmitting the receiver-side auxiliary information can be executed by the processor to perform the following operations: transmitting the receiver-side auxiliary information on the uplink shared channel at each of the remaining uplink transmission opportunities in the set of multiple uplink transmission opportunities, wherein the monitoring of the downlink shared channel transmission occurs after the set of multiple uplink transmission opportunities.

[0267] State 93: A non-transitory computer-readable medium according to any one of states 91 to 92, wherein such instructions can also be executed by the processor to perform the following operation: cancel the remaining uplink transmission opportunities in the set of the plurality of uplink transmission opportunities based on outputting the receiver-side auxiliary information on the uplink shared channel.

[0268] Sample 94: A non-transitory computer-readable medium according to Sample 93, wherein the instructions for monitoring the downlink shared channel transmission can be executed by the processor to perform the following operation: at least in part during the remaining cancelled uplink transmission opportunities, monitoring the downlink shared channel transmission.

[0269] Sample 95: A non-transitory computer-readable medium according to any one of Samples 91 to 94, wherein the instructions for transmitting the receiver-side auxiliary information can be executed by the processor to perform the following operation: transmitting an SRS including the receiver-side auxiliary information on the uplink shared channel.

[0270] State 96: A non-transitory computer-readable medium according to any one of states 91 to 95, wherein such instructions can also be executed by the processor to perform the following operation: receiving an instruction for energy detection threshold adjustment via DCI, RRC signal transmission, system information signal transmission or any combination thereof, wherein the successful CCA is performed based on the energy threshold detection adjustment.

[0271] State 97: A non-transitory computer-readable medium according to any one of states 91 to 96, wherein such instructions can also be executed by the processor to perform the following operation: determining an energy detection threshold based on the downlink shared channel transmission being a downlink HARQ retransmission, wherein the successful CCA is performed based on the energy detection threshold.

[0272] State 98: A non-transitory computer-readable medium according to State 97, wherein such instructions can also be executed by the processor to perform the following operations: receiving an indication of the energy detection threshold via DCI, RRC signal transmission, system information signal transmission or any combination thereof.

[0273] Sample 99: A non-transitory computer-readable medium according to any one of Samples 91 to 98, wherein the receiver-side auxiliary information includes CSI reports, RSRP measurements, SINR measurements, requested downlink rank indications, requested beam indications, requested COT duration indications, uplink buffer status reports, requested downlink portions of the COT, or any combination thereof.

[0274] Sample 100: A non-transitory computer-readable medium according to any one of Samples 91 to 99, wherein the instructions for monitoring the downlink shared channel transmission can be executed by the processor to perform the following operations: receiving a first portion of the downlink shared channel transmission based on a preset configuration; and receiving a second portion of the downlink shared channel transmission, including information based on receiver-side auxiliary information, after a delay from the COT based on the processing delay at the BS.

[0275] State 101: A non-transitory computer-readable medium according to any one of states 91 to 100, wherein the instructions for receiving the indication of the set of multiple uplink transmission opportunities can be executed by the processor to perform the following operation: receiving downlink control information that schedules the set of multiple uplink transmission opportunities.

[0276] Sample 102: A non-transitory computer-readable medium according to any one of Samples 96 to 101, wherein the instructions for receiving the indication of the set of a plurality of uplink transmission opportunities can be executed by the processor to perform the following operation: receiving a configured permission indicating a set of a plurality of configured permission opportunities, wherein the set of a plurality of uplink transmission opportunities is the set of a plurality of configured permission opportunities.

[0277] State 103: Non-transitory computer-readable medium according to State 102, wherein the instructions can also be executed by the processor to perform the following operations: receive the configured enabled DCI, wherein the successful CCA is performed based on receiving the DCI.

[0278] State 104: Non-transitory computer-readable media according to State 103, wherein such instructions can also be executed by the processor to perform the following operations: in response to receiving the DCI, transmit a MAC CE including an acknowledgment feedback for the DCI.

[0279] State 105: Non-transitory computer-readable medium according to State 104, wherein the instructions for receiving the configured permitted DCI can be executed by the processor to perform the following operations: detect multiple repeating sets of the configured permitted DCI, wherein the MAC CE indicates an acknowledgment feedback for the multiple repeating sets of the DCI.

[0280] State 106: A non-transitory computer-readable medium according to any one of states 91 to 105, wherein the instructions can also be executed by the processor to perform the following operations: receiving a DCI including an SFI indicating a time slot format during a second uplink transmission opportunity, wherein the set of multiple uplink transmission opportunities is associated with a lower priority order compared to the DCI including the SFI; and communicating according to the SFI during the second uplink transmission opportunity based on the lower priority order of the set of multiple uplink transmission opportunities.

[0281] Sample 107: A non-transitory computer-readable medium according to any one of samples 91 to 106, wherein the successful CCA follows one or more unsuccessful CCAs associated with a corresponding uplink transmission opportunity preceding the first uplink transmission opportunity.

[0282] Sample 108: A non-transitory computer-readable medium storing code for wireless communication at a BS, the code including instructions executable by a processor to perform the following operations: transmitting an indication of a set of multiple uplink transmission opportunities; receiving receiver-side assistance information from a UE on an uplink shared channel in a shared spectrum during a first uplink transmission opportunity in the set of multiple uplink transmission opportunities, the receiver-side assistance information indicating the initiation of COT; and transmitting downlink shared channel transmission in the shared spectrum during the COT based on the receiver-side assistance information.

[0283] Mode 109: According to the non-transitory computer-readable medium of mode 108, the instructions for receiving the receiver-side auxiliary information can be executed by the processor to perform the following operations: receiving the receiver-side auxiliary information on the uplink shared channel at each of the remaining uplink transmission opportunities in the set of multiple uplink transmission opportunities, wherein the transmission of the downlink shared channel occurs after the set of multiple uplink transmission opportunities.

[0284] Mode 110: A non-transitory computer-readable medium according to any one of modes 108 to 109, wherein the instructions for receiving the receiver-side auxiliary information can be executed by the processor to perform the following operation: receiving an SRS including the receiver-side auxiliary information on the uplink shared channel.

[0285] State 111: A non-transitory computer-readable medium according to any one of states 108 to 110, wherein such instructions can also be executed by the processor to perform the following operation: to transmit an instruction for adjusting the power detection threshold for CCA measurements performed by the UE via DCI, RRC signal transmission, system information signal transmission or any combination thereof.

[0286] State 112: According to any one of the states 108 to 111, a non-transitory computer-readable medium, wherein such instructions can also be executed by the processor to perform the following operation: determining the energy detection threshold for CCA measurements performed by the UE based on the downlink shared channel transmission being a downlink HARQ retransmission.

[0287] State 113: A non-transitory computer-readable medium according to State 112, wherein such instructions can also be executed by the processor to perform the following operations: to transmit an indication of the energy detection threshold via DCI, RRC signal transmission, system information signal transmission or any combination thereof.

[0288] Sample 114: A non-transitory computer-readable medium according to any one of Samples 108 to 113, wherein the receiver-side auxiliary information includes CSI reports, RSRP measurements, SINR measurements, requested downlink rank indications, requested beam indications, requested COT duration indications, uplink buffer status reports, requested downlink portions of the COT, or any combination thereof.

[0289] State 115: A non-transitory computer-readable medium according to any one of states 108 to 114, wherein the instructions can also be executed by the processor to perform the following operations: processing the receiver-side auxiliary information during the processing delay duration, wherein a first portion of the downlink shared channel transmission is transmitted based on a preset configuration, and a second portion of the downlink shared channel transmission after the processing delay duration is transmitted based on processing the receiver-side auxiliary information.

[0290] Version 116: A non-transitory computer-readable medium according to any one of versions 108 to 115, wherein the instructions for transmitting the indication of the set of a plurality of uplink transmission opportunities can be executed by the processor to perform the following operation: transmitting a configured permission indicating a set of a plurality of configured permission opportunities, wherein the set of a plurality of uplink transmission opportunities is the set of a plurality of configured permission opportunities.

[0291] State 117: Non-transitory computer-readable media according to State 116, wherein such instructions can also be executed by the processor to perform the following operations: transmit enabling the configured permitted DCI, wherein auxiliary information on the first receiver side is received based on the transmission of the DCI.

[0292] State 118: Non-transitory computer-readable media according to State 117, wherein such instructions can also be executed by the processor to perform the following operations: receiving a MAC CE including acknowledgment feedback for the DCI in response to the transmission of the DCI.

[0293] Version 119: A non-transitory computer-readable medium according to Version 118, wherein the instructions for transmitting the configured enabled DCI can be executed by the processor to perform the following operation: transmitting a plurality of repeating sets of the configured enabled DCI, wherein the MAC CE indicates an approval feedback for the plurality of repeating sets of the DCI.

[0294] Sample 120: A non-transitory computer-readable medium according to any one of Samples 108 to 119, wherein the instructions can also be executed by the processor to perform the following operations: transmitting a DCI including an SFI indicating a time slot format during a second uplink transmission opportunity, wherein the set of multiple uplink transmission opportunities is associated with a lower priority order compared to the DCI including the SFI; and communicating according to the SFI during the second uplink transmission opportunity based on the lower priority order of the set of multiple uplink transmission opportunities.

[0295] State 121: An apparatus according to any one of states 48 to 60, wherein the first interface is also configured to: obtain DCI from BS; and the processing system is also configured to: execute at least one CCA procedure based on the DCI for at least one set of uplink transmission opportunities from a plurality of sets of uplink transmission opportunities.

[0296] As used in this article, the phrase "at least one of the items" refers to any combination of those items, including individual members. As an example, "at least one of a, b, or c" is intended to cover: a, b, c, ab, ac, bc, and abc.

[0297] The various illustrative logics, logic blocks, modules, circuits, and algorithmic processes described in conjunction with the implementation methods revealed in this paper can be implemented as electronic hardware, computer software, or a combination of both. The interchangeability of hardware and software has been illustrated around the overall functionality and in the aforementioned illustrative elements, blocks, modules, circuits, and processes. Whether this functionality is implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0298] Hardware and data processing apparatuses used to implement the various illustrative logics, logic blocks, modules, and circuits described herein can be implemented or executed using general-purpose single-chip or multi-chip processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, individual gate or transistor logic devices, individual hardware elements, or any combination thereof, designed to perform the functions described herein. A general-purpose processor can be a microprocessor or any known processor, controller, microcontroller, or state machine. A processor can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, a combination of one or more microprocessors with a DSP core, or any other such configuration. In some implementations, a particular process or method can be executed by a circuit system specific to a given function.

[0299] In one or more embodiments, the described functionality may be implemented in hardware, digital electronic circuitry, computer software, firmware (including the structures disclosed herein and their equivalents), or any combination thereof. The implementation of the subject matter described herein may also be implemented as one or more computer programs encoded on a computer storage medium for execution by a data processing device or for controlling the operation of a data processing device; that is, one or more modules of computer program instructions.

[0300] If implemented in software, such functionality can be stored as one or more instructions or codes on or transmitted via a computer-readable medium. The methods or algorithms disclosed herein can be implemented in a processor-executable software module that can reside on the computer-readable medium. Computer-readable media includes both computer storage media and communication media, such as any media capable of transferring computer programs from one location to another. Storage media can be any available media accessible to a computer. By way of example, and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other media that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer. Furthermore, any connection can be appropriately referred to as computer-readable media. As used herein, magnetic disks and optical disks include CDs, laser discs, optical discs, DVDs, floppy disks, and Blu-ray discs, where magnetic disks typically copy data magnetically, while optical discs typically use lasers to copy data optically. The combination of the above should also be included within the scope of computer-readable media. Furthermore, the operation of methods or algorithms can reside as any one or any combination or set of codes and instructions on machine-readable and computer-readable media, which can be incorporated into computer program products.

[0301] Various modifications to the implementations described herein will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other implementations without departing from the spirit or scope of this document. Therefore, the request is not intended to be limited to the implementations shown herein, but rather to conform to the broadest scope consistent with the content of this document and the principles and features revealed herein.

[0302] In addition, it will be readily recognized by those skilled in the art that the terms "upper" and "lower" are sometimes used to simplify the description of the figures and to indicate the relative position corresponding to the orientation of the figures on the correctly oriented page, and may not reflect the correct orientation of any device as implemented.

[0303] Some features described in this specification in the context of individual implementations can also be implemented in combination in a single implementation. Conversely, features described in the context of a single implementation can also be implemented separately or in any suitable sub-combination in multiple implementations. Furthermore, although features may be described above as functioning in certain combinations and even initially claimed in this way, in some instances, one or more features from the claimed combination may be removed from that combination, and the claimed combination may involve sub-combinations or variations thereof.

[0304] Similarly, although operations are illustrated in a specific order in the diagrams, this should not be construed as requiring such operations to be performed in the illustrated specific order or sequence, or to perform all illustrated operations to achieve the desired result. Furthermore, the accompanying drawings may schematically illustrate one or more exemplary processes in the form of flowchart diagrams. However, other operations not illustrated may be incorporated into the schematically illustrated exemplary processes. For example, one or more additional operations may be performed before, after, simultaneously with, or between any of the illustrated operations. In some cases, multiplexing and parallel processing may be advantageous. Moreover, the separation of individual system components in the implementations described above should not be construed as advocating such separation in all implementations, but rather should be understood as meaning that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products. Additionally, other implementations are within the scope of the appended claims. In some instances, the actions described in the claims can be performed in a different order and still achieve the desired result.

[0305] 100: Wireless Communication System 105:BS 105-a:BS 105-b:BS 105-c:BS 110: Coverage Area 115:UE 115-a:UE 115-b:UE 115-c:UE 120: Backload Link 125: Communication Link 130: Core Network 135:D2D communication link 140: Access to network entities 145: Access to network transmission entities 150: IP Service 200: Network Architecture 205:DCI 210-a: Uplink Transmission Opportunities 210-b: Uplink Transmission Opportunities 215-a:CCA 215-b:CCA 220:COT 225: Downlink Data 230: Feedback 300: Network Architecture 305-a:DCI 305-b:DCI 310: Configured Permissible Timing 315:CCA 320:COT 325: Downlink Data 330: Feedback 335: Processing Delay 340: Default value 345: Decoded value 400: Network Architecture 405:DCI 410-a: Uplink Transmission Opportunities 410-b: Uplink Transmission Opportunities 410-c: Uplink transmission opportunity 415-a:CCA 415-b:CCA 420:COT 425: Downlink Data 430: Feedback 500: System 505: Equipment 510: Input / Output (I / O) Controller 515: Transceiver 520: Communication Manager 525: Antenna 530: Memory 535: Code 540: Processor 545: Busbar 600: Block Diagram 605: Equipment 610: Network Communication Manager 615: Transceiver 620: Communication Manager 625: Antenna 630: Memory 635: Code 640: Processor 645: Inter-station Communication Manager 650: Busbar 700: Method 705: Steps 710: Steps 715: Steps 720: Steps 800: Method 805: Steps 810: Steps 815: Steps 820: Steps 825: Steps 900: Method 905: Steps 910: Steps 915: Steps

[0306] Domestic storage information (please note in order of storage institution, date, and number) none Overseas storage information (please note in the order of storage country, institution, date, and number) none

Claims

1. An apparatus for wireless communication at a user equipment (UE), comprising: A first interface, configured to: obtain an indication of a plurality of uplink transmission opportunities; A processing system is configured to: initiate a Channel Occupancy Time (COT) based at least in part on a successful Idle Channel Assessment (CCA) performed prior to a first uplink transmission opportunity among a plurality of uplink transmission opportunities; the first interface or a second interface is configured to: output receiver-side auxiliary information on an uplink shared channel in the shared spectrum during the first uplink transmission opportunity and at the remaining uplink transmission opportunities of each of the plurality of uplink transmission opportunities, the receiver-side auxiliary information indicating the initiation of the COT; and the processing system is also configured to: monitor a next downlink shared channel transmission in the shared spectrum during the COT based at least in part on the receiver-side auxiliary information.

2. The apparatus according to claim 1, wherein the monitoring of the downlink shared channel transmission occurs after the plurality of uplink transmission opportunities.

3. The apparatus according to claim 1, wherein the second interface is also configured to: output a probe reference signal (SRS) including the receiver-side auxiliary information on the uplink shared channel.

4. The apparatus according to claim 1, wherein the first interface is also configured to: obtain an indication of an energy detection threshold adjustment via downlink control information (DCI), radio resource control (RRC) signaling, system information signaling, or any combination thereof, wherein the successful CCA is performed based on the energy threshold detection adjustment.

5. The apparatus according to request 1, wherein the processing system is also configured to: determine an energy detection threshold at least in part based on whether the downlink shared channel transmission is a downlink hybrid automatic repeat request (HARQ) retransmission, wherein the successful CCA is performed based on the energy detection threshold.

6. The apparatus according to claim 5, wherein the first interface is also configured to: obtain an indication of the energy detection threshold via downlink control information (DCI), radio resource control (RRC) signaling, system information signaling, or any combination thereof.

7. The apparatus according to claim 1, wherein the receiver-side auxiliary information includes a Channel Status Information (CSI) report, a Reference Signal Received Power (RSRP) measurement, a Signal-to-Interference Plus Noise Ratio (SINR) measurement, a requested downlink rank indication, a requested beam indication, a requested COT duration indication, an uplink buffer status report, a requested downlink portion of the COT, or any combination thereof.

8. The apparatus according to claim 1, wherein the first interface is also configured to: obtain a first portion of the downlink shared channel transmission based at least in part on a preset configuration; and obtain a second portion of the downlink shared channel transmission, including information based at least in part on the receiver-side auxiliary information, after a delay from the COT based at least in part on a processing delay at a base station (BS).

9. The apparatus according to request 1, wherein the first interface is also configured to: obtain downlink control information for scheduling the plurality of uplink transmission opportunities.

10. The apparatus according to claim 1, wherein the first interface is also configured to: obtain a configured permission indicating a plurality of configured permission opportunities, wherein the plurality of uplink transmission opportunities are the plurality of configured permission opportunities.

11. The apparatus according to request 10, wherein the first interface is also configured to: obtain the configured permitted downlink control information (DCI), wherein the successful CCA is performed at least in part based on obtaining the DCI.

12. The apparatus according to claim 11, wherein the second interface is also configured to: output a Media Access Control (MAC) control element (CE) including an acknowledgment feedback for the DCI in response to receiving the DCI.

13. The apparatus according to claim 12, wherein the processing system is also configured to: detect a plurality of repetitions of the configured permitted DCI, wherein the MAC CE indicates the approval feedback for the plurality of repetitions of the DCI.

14. The apparatus according to claim 1, wherein the first interface is also configured to: obtain downlink control information (DCI) including a slot format indicator (SFI) indicating a slot format during a second uplink transmission opportunity, wherein the plurality of uplink transmission opportunities are associated with a lower priority order compared to the DCI including the SFI; and the first interface or the second interface is also configured to: communicate according to the SFI during the second uplink transmission opportunity, at least in part, based on the lower priority order of the plurality of uplink transmission opportunities.

15. The apparatus according to claim 1, wherein the successful CCA follows one or more unsuccessful CCAs associated with a corresponding uplink transmission opportunity preceding the first uplink transmission opportunity.

16. The apparatus according to claim 1, wherein the first interface is also configured to: obtain downlink control information (DCI) from a base station (BS); and the processing system is also configured to: execute at least one CCA procedure for at least one uplink transmission opportunity among the plurality of uplink transmission opportunities, at least in part based on the DCI.

17. An apparatus for wireless communication at a user equipment (UE), comprising: A first interface, configured to: obtain an indication of a plurality of uplink transmission opportunities; A processing system is configured to: initiate a Channel Occupancy Time (COT) based at least in part on a successful Idle Channel Assessment (CCA) performed prior to a first uplink transmission opportunity among a plurality of uplink transmission opportunities; the first interface or a second interface is configured to: output receiver-side auxiliary information on an uplink shared channel in the shared spectrum during the first uplink transmission opportunity, the receiver-side auxiliary information indicating that the COT has been initiated; the processing system is also configured to: monitor a next downlink shared channel transmission in the shared spectrum during the COT based at least in part on the receiver-side auxiliary information; and cancel the remaining uplink transmission opportunities among the plurality of uplink transmission opportunities based at least in part on the output of the receiver-side auxiliary information on the uplink shared channel.

18. The apparatus according to claim 17, wherein the processing system is also configured to: monitor the downlink shared channel transmission at least in part during the period of the cancelled remaining uplink transmission opportunities.

19. An apparatus for wireless communication at a base station (BS), comprising: A first interface is configured to: output an indication of a plurality of uplink transmission opportunities; the first interface or a second interface is configured to: obtain receiver-side assistance information from a user equipment (UE) during a first uplink transmission opportunity of the plurality of uplink transmission opportunities and during the remaining uplink transmission opportunities of each of the plurality of uplink transmission opportunities on an uplink shared channel in a shared spectrum, the receiver-side assistance information indicating the initiation of a channel occupancy time (COT); and the first interface is configured to: output a downlink shared channel transmission in the shared spectrum during the COT period, at least in part based on the receiver-side assistance information.

20. The apparatus according to claim 19, wherein the output of the downlink shared channel transmission occurs after the plurality of uplink transmission opportunities.

21. The apparatus according to claim 19, wherein the second interface is also configured to: obtain a probe reference signal (SRS) including the receiver-side auxiliary information on the uplink shared channel.

22. The apparatus according to claim 19, wherein the first interface is also configured to: output an indication of an adjustment of an energy detection threshold for an idle channel assessment (CCA) measurement performed by the UE via downlink control information (DCI), radio resource control (RRC) signaling, system information signaling, or any combination thereof.

23. The apparatus according to request item 19, wherein a processing system is configured to: determine an energy detection threshold for idle channel assessment (CCA) measurements performed by the UE, at least in part based on whether the downlink shared channel transmission is a downlink hybrid automatic repeat request (HARQ) retransmission.

24. The apparatus according to claim 23, wherein the first interface is also configured to: output an indication of the energy detection threshold via downlink control information (DCI), radio resource control (RRC) signaling, system information signaling, or any combination thereof.

25. The apparatus according to claim 19, wherein the receiver-side auxiliary information includes a Channel Status Information (CSI) report, a Reference Signal Received Power (RSRP) measurement, a Signal-to-Interference Plus-Noise Ratio (SINR) measurement, a requested downlink rank indication, a requested beam indication, a requested COT duration indication, an uplink buffer status report, a requested downlink portion of the COT, or any combination thereof.

26. The apparatus according to claim 19, wherein a processing system is configured to: process the receiver-side auxiliary information during a processing delay duration, wherein a first portion of the downlink shared channel transmission is output at least partially based on a preset configuration, and a second portion of the downlink shared channel transmission after the processing delay duration is output at least partially based on processing the receiver-side auxiliary information.

27. The apparatus according to claim 19, wherein the first interface is also configured to: output a configured permission indicating a plurality of configured permission opportunities, wherein the plurality of uplink transmission opportunities are the plurality of configured permission opportunities.

28. The apparatus according to request 27, wherein the first interface is also configured to: output the configured permitted downlink control information (DCI), wherein the receiver-side auxiliary information is obtained at least in part based on outputting the DCI.

29. The apparatus according to claim 28, wherein the second interface is also configured to: respond to the output of the DCI to obtain a Media Access Control (MAC) control element (CE) including acknowledgment feedback for the DCI.

30. The apparatus according to claim 29, wherein the first interface is also configured to: output a plurality of repetitions of the configured permitted DCI, wherein the MAC CE indicates the acknowledgment feedback for the plurality of repetitions of the DCI.

31. The apparatus according to claim 19, wherein the first interface is also configured to: output downlink control information (DCI) including a slot format indicator (SFI) indicating a slot format during a second uplink transmission opportunity, wherein the plurality of uplink transmission opportunities are associated with a lower priority order compared to the DCI including the SFI; and the first interface or the second interface is also configured to: communicate according to the SFI during the second uplink transmission opportunity opportunity based at least in part on the lower priority order of the plurality of uplink transmission opportunities.

32. A method for wireless communication at a user equipment (UE), comprising the steps of: receiving an indication for a plurality of uplink transmission opportunities; initiating a channel occupancy time (COT) based at least in part on a successful idle channel assessment (CCA) performed prior to a first uplink transmission opportunity among the plurality of uplink transmission opportunities; transmitting receiver-side assistance information on an uplink shared channel in a shared spectrum during the first uplink transmission opportunity and at the remaining uplink transmission opportunities of each of the plurality of uplink transmission opportunities, the receiver-side assistance information indicating the initiation of the COT; and monitoring a next downlink shared channel transmission in the shared spectrum during the COT based at least in part on the receiver-side assistance information.

33. The method according to request 32, wherein the monitoring of the downlink shared channel transmission occurs after the plurality of uplink transmission opportunities.

34. The method according to claim 32 also includes the following steps: canceling the remaining uplink transmission opportunities among the plurality of uplink transmission opportunities, at least in part, based on transmitting the receiver-side auxiliary information on the uplink shared channel.

35. The method according to request item 32, wherein the step of transmitting the receiver-side auxiliary information includes the following steps: transmitting a probe reference signal (SRS) including the receiver-side auxiliary information on the uplink shared channel.

36. The method according to claim 32, wherein the receiver-side auxiliary information includes a Channel Status Information (CSI) report, a Reference Signal Received Power (RSRP) measurement, a Signal-to-Interference Plus Noise Ratio (SINR) measurement, a requested downlink rank indication, a requested beam indication, a requested COT duration indication, an uplink buffer status report, a requested downlink portion of the COT, or any combination thereof.

37. A method for wireless communication at a base station (BS), comprising the steps of: transmitting an indication of a plurality of uplink transmission opportunities; receiving receiver-side assistance information from a user equipment (UE) during a first uplink transmission opportunity of the plurality of uplink transmission opportunities and during the remaining uplink transmission opportunities of each of the plurality of uplink transmission opportunities on an uplink shared channel in a shared spectrum, the receiver-side assistance information indicating the initiation of a channel occupancy time (COT); and transmitting a downlink shared channel transmission in the shared spectrum during the COT period based at least in part on the receiver-side assistance information.

38. The method according to request item 37, wherein the transmission of the downlink shared channel occurs after the plurality of uplink transmission opportunities.

39. The method according to request item 37, wherein the step of receiving the receiver-side auxiliary information includes the following steps: receiving a probe reference signal (SRS) including the receiver-side auxiliary information on the uplink shared channel.

40. The method according to claim 37, wherein the receiver-side auxiliary information includes a Channel Status Information (CSI) report, a Reference Signal Received Power (RSRP) measurement, a Signal-to-Interference Plus Noise Ratio (SINR) measurement, a requested downlink rank indication, a requested beam indication, a requested COT duration indication, an uplink buffer status report, a requested downlink portion of the COT, or any combination thereof.

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