Communication for low latency traffic
By coordinating transmissions between a UE and a network entity, non-periodic high priority data can be efficiently handled, addressing the limitations of existing systems in handling low latency traffic.
Patent Information
- Application Number
- PCT/CN2024/124551
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-08-14
AI Technical Summary
Existing wireless communication systems struggle to efficiently handle non-periodic low latency traffic, particularly in scenarios where high priority data arrives during ongoing transmissions, as current mechanisms like R-TWT do not support interrupting ongoing transmissions for higher priority data.
A method where a UE transmits information about non-periodic high priority data to a network entity, which then provides instructions for both the high priority and ongoing transmissions, allowing the UE to perform these transmissions accordingly.
Enables the transmission of non-periodic high priority data by coordinating ongoing and new transmissions, thereby supporting low latency traffic effectively.
Smart Images

Figure CN2024124551_14082025_PF_FP_ABST
Abstract
Description
COMMUNICATION FOR LOW LATENCY TRAFFICTECHNICAL FIELD
[0001] The present disclosure relates to wireless communications, and more specifically to devices and methods of communication for low latency traffic.BACKGROUND
[0002] A wireless communications system may include one or multiple network communication devices, such as base stations, which may be otherwise known as an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology. Each network communication devices, such as a base station may support wireless communications for one or multiple user communication devices, which may be otherwise known as user equipment (UE) , or other suitable terminology. The wireless communications system may support wireless communications with one or multiple user communication devices by utilizing resources of the wireless communication system (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) . Additionally, the wireless communications system may support wireless communications across various radio access technologies including third generation (3G) radio access technology, fourth generation (4G) radio access technology, fifth generation (5G) radio access technology, among other suitable radio access technologies beyond 5G (e.g., sixth generation (6G) ) .
[0003] To support low latency traffic, multi-link operation (MLO) , restricted target wake time (R-TWT) and stream classification service (SCS) based quality of service (QoS) signaling mechanisms have been developed. Currently, it is expected that ultra-high reliability (UHR) builds on top of the QoS signaling mechanisms to further lower the maximum latency of wireless fidelity (Wi-Fi) . Thus, a data transmission for low latency traffic need to be further enhanced.SUMMARY
[0004] The present disclosure relates to methods, apparatuses, and computer-readable media that supports low latency traffic. By reporting information of non-periodic high priority data to be transmitted, non-periodic low latency traffic may be supported.
[0005] In one aspect, some implementations of the methods, apparatuses, and computer-readable media described herein may comprise: in accordance with a determination that a first transmission of first data is to be performed while a second transmission of second data is ongoing, transmitting, at a UE, information of the first data to a network entity via a transceiver, wherein the first data is non-periodic and has a priority higher than a priority threshold; in accordance with a determination that first information indicating the first transmission is received from the network entity via the transceiver, performing the first transmission based on the first information; and in accordance with a determination that second information indicating the second transmission is received from the network entity via the transceiver, performing the second transmission based on the second information.
[0006] In some implementations of the methods, apparatuses, and computer-readable media described herein, the information of the first data may comprise at least one of the following: information of the priority of the first data, information of one or more requirements of the first data, information related to a transmission timing of the first data, or information of an urgent level of the first data.
[0007] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may not have a R-TWT mechanism, and the priority of the first data may be higher than a priority of the second data. The first information may comprise at least one of the following: an indication of starting the first transmission, or a duration for the first transmission. The second information may comprise at least one of the following: an indication of completion of the first transmission, an indication of continuing the second transmission, or the duration for the first transmission.
[0008] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may not have a R-TWT mechanism, and the second data may have a priority higher than the priority threshold. Transmitting the information of the first data may comprise: in accordance with a determination that remaining time of the second data is larger than a time threshold, transmitting the information of the first data to the network entity via the transceiver.
[0009] Some implementations of the methods, apparatuses, and computer-readable media described herein may further comprise: in accordance with a determination that the remaining time of the second data is less than the time threshold, transmitting a request for the first transmission to the network entity via the transceiver after completion of the second transmission, the request comprising at least one of the following: information of one or more requirements of the first data, or information related to a transmission timing of the first data; and in accordance with a determination that a response to the request is received from the network entity via the transceiver, performing the first transmission based on the response.
[0010] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may not have a R-TWT mechanism, and the second data has a priority higher than the priority threshold. Transmitting the information of the first data may comprise: in accordance with a determination that a size of the first data is larger than a size threshold, transmitting the information of the first data to the network entity via the transceiver.
[0011] Some implementations of the methods, apparatuses, and computer-readable media described herein may further comprise: in accordance with a determination that the size of the first data is less than the size threshold, performing the first transmission via one or more remaining channels for the second transmission.
[0012] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may be a member of a R-TWT mechanism, and the priority of the first data may be higher than a priority of the second data. The first information may comprise a trigger frame for the first transmission, and the second information may comprise timing information for the second transmission.
[0013] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may be a member of a R-TWT mechanism, and the priority of the first data may be lower than a priority of the second data. The first information may comprise a timing information for the first transmission, and the second information may comprise a trigger frame for the second transmission.
[0014] In some implementations of the methods, apparatuses, and computer-readable media described herein, the timing information may comprise one of the following: a starting time point and a duration in a first R-TWT service period (SP) associated with the second transmission; one or more R-TWT SPs following the first R-TWT SP; a starting time point in the first R-TWT SP; or a starting time point in the one or more R-TWT SPs following the first R-TWT SP.
[0015] In some implementations of the methods, apparatuses, and computer-readable media described herein, the first R-TWT SP may be an adjusted R-TWT SP. Some implementations of the methods, apparatuses, and computer-readable media described herein may further comprise: receiving, from the network entity, information of the adjusted R-TWT SP comprising at least one of the following: a time window of the adjusted R-TWT SP; a time offset of the adjusted R-TWT SP with respect to a R-TWT SP before adjustment; or information of validation of the adjusted R-TWT SP indicating that the adjusted R-TWT SP is valid for the first R-TWT SP or the one or more R-TWT SPs following the first R-TWT SP.
[0016] In some implementations of the methods, apparatuses, and computer-readable media described herein, the timing information may comprise one of the following: a starting time point of the second transmission; a starting time point and a duration of the second transmission; or a starting time point and an ending time point of the second transmission.
[0017] In some implementations of the methods, apparatuses, and computer-readable media described herein, the timing information may comprise one of the following: a starting time point of the first transmission; a starting time point and a duration of the first transmission; or a starting time point and an ending time point of the first transmission.
[0018] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may be a member of a R-TWT mechanism, and the first information may comprise an indication of occupying a channel used for a third transmission of third data, the third data having a priority lower than the priority threshold.
[0019] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may have a R-TWT mechanism and may be not a member of the R-TWT mechanism, and the second data has a priority lower than the priority threshold.
[0020] In some implementations of the methods, apparatuses, and computer-readable media described herein, the first information may comprise a trigger frame for the first transmission, and the second information may comprise timing information for the second transmission. The timing information may comprise one of the following: a value for a backoff timer of the second transmission; a starting time point and a duration of the backoff timer; a starting time point and an ending time point of the backoff timer; or one or more R-TWT wake intervals.
[0021] Some implementations of the methods, apparatuses, and computer-readable media described herein may further comprise: transmitting, to the network entity, a request for leaving the R-TWT mechanism; receiving, from the network entity and as the first information, information indicating that the UE is allowed to leave the R-TWT mechanism; and determining a channel for the first transmission.
[0022] In some implementations of the methods, apparatuses, and computer-readable media described herein, determining the channel may comprise: occupying the channel via contention resolution; or receiving an indication of the channel from the network entity.
[0023] In another aspect, some implementations of the methods, apparatuses, and computer-readable media described herein may comprise: receiving, at a network entity, information of first data from a UE via a transceiver while a second transmission of second data is ongoing, wherein the first data is non-periodic and has a priority higher than a priority threshold; transmitting, to the UE via the transceiver, first information indicating a first transmission of the first data; and transmitting, to the UE via the transceiver, second information indicating the second transmission of the second data.
[0024] In some implementations of the methods, apparatuses, and computer-readable media described herein, the information of the first data may comprise at least one of the following: information of the priority of the first data, information of one or more requirements of the first data, information related to a transmission timing of the first data, or information of an urgent level of the first data.
[0025] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may not have a R-TWT mechanism. Transmitting the first information may comprise: in accordance with a determination that the priority of the first data is higher than a priority of the second data, transmitting the first information that comprises at least one of the following: an indication of starting the first transmission, or a duration for the first transmission. Transmitting the second information may comprise: in accordance with a determination that the first transmission is completed, transmitting the second information that comprises at least one of the following: an indication of completion of the first transmission, an indication of continuing the second transmission, or the duration for the first transmission.
[0026] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may not have a R-TWT mechanism, the second data may have a priority higher than the priority threshold, and remaining time of the second data may be larger than a time threshold.
[0027] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may not have a R-TWT mechanism, the second data may have a priority higher than the priority threshold, and remaining time of the second data may be less than a time threshold. Some implementations of the methods, apparatuses, and computer-readable media described herein may further comprise: receiving a request for the first transmission from the UE via the transceiver, wherein the request comprises at least one of the following: information of one or more requirements of the first data, or information related to a transmission timing of the first data; and transmitting a response to the request to the UE via the transceiver, wherein the response comprises an indication of starting the first transmission.
[0028] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may not have a R-TWT mechanism, the second data may have a priority higher than the priority threshold, and a size of the first data may be larger than a size threshold.
[0029] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may not have a R-TWT mechanism, the second data may have a priority higher than the priority threshold, the size of the first data may be less than the size threshold, and the first transmission may be performed via one or more remaining channels for the second transmission.
[0030] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may be a member of a R-TWT mechanism. Transmitting the first information may comprise: in accordance with a determination that the priority of the first data is higher than a priority of the second data, transmitting the first information that comprises a trigger frame for the first transmission. Transmitting the second information may comprise: in accordance with a determination that the priority of the first data is higher than the priority of the second data, transmitting the second information that comprises timing information for the second transmission.
[0031] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may be a member of a R-TWT mechanism. Transmitting the first information may comprise: in accordance with a determination that the priority of the first data is lower than a priority of the second data, transmitting the second information that comprises a trigger frame for the second transmission. Transmitting the second information may comprise: in accordance with a determination that the priority of the first data is lower than the priority of the second data, transmitting the first information that comprises timing information for the first transmission.
[0032] In some implementations of the methods, apparatuses, and computer-readable media described herein, the timing information may comprise one of the following: a starting time point and a duration in a first R-TWT SP associated with the second transmission; one or more R-TWT SPs following the first R-TWT SP; a starting time point in the first R-TWT SP; or a starting time point in the one or more R-TWT SPs following the first R-TWT SP.
[0033] In some implementations of the methods, apparatuses, and computer-readable media described herein, the first R-TWT SP may be an adjusted R-TWT SP. Some implementations of the methods, apparatuses, and computer-readable media described herein may further comprise: transmitting information of the adjusted R-TWT SP comprising at least one of the following: a time window of the adjusted R-TWT SP; a time offset of the adjusted R-TWT SP with respect to a R-TWT SP before adjustment; or information of validation of the adjusted R-TWT SP indicating that the adjusted R-TWT SP is valid for the first R-TWT SP or the one or more R-TWT SPs following the first R-TWT SP.
[0034] In some implementations of the methods, apparatuses, and computer-readable media described herein, the timing information may comprise one of the following: a starting time point of the second transmission; a starting time point and a duration of the second transmission; or a starting time point and an ending time point of the second transmission.
[0035] In some implementations of the methods, apparatuses, and computer-readable media described herein, the timing information may comprise one of the following: a starting time point of the first transmission; a starting time point and a duration of the first transmission; or a starting time point and an ending time point of the first transmission.
[0036] Some implementations of the methods, apparatuses, and computer-readable media described herein may further comprise: transmitting timing information for a third transmission of third data to a further UE performing the third transmission, wherein the third data has a priority lower than the priority threshold, and the timing information comprises one of the following: a value for a backoff timer of the third transmission; a starting time point and a duration of the backoff timer; or a starting time point and an ending time point of the backoff timer.
[0037] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may be a member of a R-TWT mechanism. Transmitting the first information may comprise: in accordance with a determination that the information of the first data is received, waking up UEs to monitor a beacon frame during a time window; and transmitting, via the beacon frame, the first information that comprises an indication of occupying a channel used for a third transmission of third data, wherein the third data has a priority lower than the priority threshold.
[0038] Some implementations of the methods, apparatuses, and computer-readable media described herein may further comprise: transmitting, to a further UE performing the third transmission of the third data, information indicating a failure of the third transmission, the information comprising at least one of the following: a channel occupying occurs; the channel occupying is performed by the UE; a starting time point of the channel occupying; a duration of the channel occupying; or an ending time point of the channel occupying.
[0039] In some implementations of the methods, apparatuses, and computer-readable media described herein, the UE may have a R-TWT mechanism and may be not a member of the R-TWT mechanism, and the second data may have a priority lower than the priority threshold.
[0040] In some implementations of the methods, apparatuses, and computer-readable media described herein, the first information may comprise a trigger frame for the first transmission, and the second information may comprise timing information for the second transmission. The timing information may comprise one of the following: a value for a backoff timer of the second transmission; a starting time point and a duration of the backoff timer; a starting time point and an ending time point of the backoff timer; or one or more R-TWT wake intervals.
[0041] Some implementations of the methods, apparatuses, and computer-readable media described herein may further comprise: receiving, from the UE, a request for leaving the R-TWT mechanism; and transmitting, to the UE and as the first information, information indicating that the UE is allowed to leave the R-TWT mechanism.
[0042] Some implementations of the methods, apparatuses, and computer-readable media described herein may further comprise: transmitting, to the UE, an indication of a channel available for the first transmission.
[0043] In the context of the present disclosure, an apparatus may be implemented as a device or a part of the device. In some embodiments, the apparatus may be implemented as a processor at the device.BRIEF DESCRIPTION OF THE DRAWINGS
[0044] FIG. 1 illustrates an example of a wireless communications system that supports low latency traffic in which some embodiments of the present disclosure can be implemented.
[0045] FIG. 2 illustrates a diagram illustrating an R-TWT mechanism in which some embodiments of the present disclosure can be implemented.
[0046] FIG. 3A illustrates a signaling chart illustrating a process of communication that supports low latency traffic in accordance with aspects of the present disclosure.
[0047] FIG. 3B illustrates a signaling chart illustrating another process of communication that supports low latency traffic in accordance with aspects of the present disclosure.
[0048] FIG. 3C illustrates a signaling chart illustrating another process of communication that supports low latency traffic in accordance with aspects of the present disclosure.
[0049] FIG. 4 illustrates a signaling chart illustrating another process of communication that supports low latency traffic in accordance with aspects of the present disclosure.
[0050] FIG. 5A illustrates a diagram illustrating an example transmission of periodic and non-periodic high priority data in accordance with aspects of the present disclosure.
[0051] FIG. 5B illustrates a diagram illustrating another example transmission of periodic and non-periodic high priority data in accordance with aspects of the present disclosure.
[0052] FIG. 5C illustrates a diagram illustrating another example transmission of periodic and non-periodic high priority data in accordance with aspects of the present disclosure.
[0053] FIG. 6 illustrates a signaling chart illustrating another process of communication that supports low latency traffic in accordance with aspects of the present disclosure.
[0054] FIG. 7 illustrates a diagram illustrating an example transmission of low priority data and non-periodic high priority data in accordance with aspects of the present disclosure.
[0055] FIG. 8 illustrates an example of a device that supports low latency traffic in accordance with aspects of the present disclosure.
[0056] FIG. 9 illustrates an example of a processor that supports low latency traffic in accordance with aspects of the present disclosure.
[0057] FIG. 10 illustrates a flowchart of a method that supports low latency traffic in accordance with aspects of the present disclosure.
[0058] FIG. 11 illustrates a flowchart of another method that supports low latency traffic in accordance with aspects of the present disclosure.
[0059] Throughout the drawings, the same or similar reference numerals represent the same or similar element.DETAILED DESCRIPTION
[0060] Principles of the present disclosure will now be described with reference to some embodiments. It is to be understood that these embodiments are described only for the purpose of illustration and help those skilled in the art to understand and implement the present disclosure, without suggesting any limitation as to the scope of the disclosure. The disclosure described herein can be implemented in various manners other than the ones described below. In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which this disclosure belongs.
[0061] References in the present disclosure to “one embodiment, ” “an example embodiment, ” “an embodiment, ” “some embodiments, ” and the like indicate that the embodiment (s) described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases do not necessarily refer to the same embodiment (s) . Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described. The term “embodiment” herein may be interchangeably used with “implementation” .
[0062] It shall be understood that although the terms “first” and “second” or the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could also be termed as a second element, and similarly, a second element could also be termed as a first element, without departing from the scope of embodiments. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms. In some examples, values, procedures, or apparatuses are referred to as “best, ” “lowest, ” “highest, ” “minimum, ” “maximum, ” or the like. It will be appreciated that such descriptions are intended to indicate that a selection among many used functional alternatives can be made, and such selections need not be better, smaller, higher, or otherwise preferable to other selections.
[0063] FIG. 1 illustrates an example of a wireless communications system 100 that supports low latency traffic in which some embodiments of the present disclosure can be implemented. The wireless communications system 100 may include one or more network entities 102 (also referred to as network equipment (NE) ) , one or more UEs 104, a core network (CN) 106, and a packet data network 108. The wireless communications system 100 may support various radio access technologies. In some implementations, the wireless communications system 100 may be a 4G network, such as a long term evolution (LTE) network or an LTE-Advanced (LTE-A) network. In some other implementations, the wireless communications system 100 may be a 5G network, such as a new radio (NR) network. In other implementations, the wireless communications system 100 may be a combination of a 4G network and a 5G network, or other suitable radio access technology including Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20. The wireless communications system 100 may support radio access technologies beyond 5G. Additionally, the wireless communications system 100 may support technologies, such as time division multiple access (TDMA) , frequency division multiple access (FDMA) , or code division multiple access (CDMA) , etc.
[0064] The one or more network entities 102 may be dispersed throughout a geographic region to form the wireless communications system 100. One or more of the network entities 102 described herein may be or include or may be referred to as a network node, a base station, a network element, a radio access network (RAN) , a base transceiver station, an access point (AP) , a NodeB, an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology. A network entity 102 and a UE 104 may communicate via a communication link 110, which may be a wireless or wired connection. For example, a network entity 102 and a UE 104 may perform wireless communication (e.g., receive signaling, transmit signaling) over a Uu interface.
[0065] A network entity 102 may provide a geographic coverage area 112 for which the network entity 102 may support services (e.g., voice, video, packet data, message, broadcast, etc. ) for one or more UEs 104 within the geographic coverage area 112. For example, a network entity 102 and a UE 104 may support wireless communication of signals related to services (e.g., voice, video, packet data, messaging, broadcast, etc. ) according to one or multiple radio access technologies. In some implementations, a network entity 102 may be moveable, for example, a satellite associated with a non-terrestrial network. In some implementations, different geographic coverage areas 112 associated with the same or different radio access technologies may overlap, but the different geographic coverage areas 112 may be associated with different network entities 102. Information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0066] The one or more UEs 104 may be dispersed throughout a geographic region of the wireless communications system 100. A UE 104 may include or may be referred to as a mobile device, a wireless device, a remote device, a remote unit, a handheld device, or a subscriber device, or some other suitable terminology. In some implementations, the UE 104 may be referred to as a unit, a station (STA) , a terminal, or a client, among other examples. Additionally, or alternatively, the UE 104 may be referred to as an Internet-of-Things (IoT) device, an Internet-of-Everything (IoE) device, or machine-type communication (MTC) device, among other examples. In some implementations, a UE 104 may be stationary in the wireless communications system 100. In some other implementations, a UE 104 may be mobile in the wireless communications system 100.
[0067] The one or more UEs 104 may be devices in different forms or having different capabilities. Some examples of UEs 104 are illustrated in FIG. 1. A UE 104 may be capable of communicating with various types of devices, such as the network entities 102, other UEs 104, or network equipment (e.g., the CN 106, the packet data network 108, a relay device, an integrated access and backhaul (IAB) node, or another network equipment) , as shown in FIG. 1. Additionally, or alternatively, a UE 104 may support communication with other network entities 102 or UEs 104, which may act as relays in the wireless communications system 100.
[0068] A UE 104 may also be able to support wireless communication directly with other UEs 104 over a communication link 114. For example, a UE 104 may support wireless communication directly with another UE 104 over a device-to-device (D2D) communication link. In some implementations, such as vehicle-to-vehicle (V2V) deployments, vehicle-to-everything (V2X) deployments, or cellular-V2X deployments, the communication link 114 may be referred to as a sidelink (SL) . For example, a UE 104 may support wireless communication directly with another UE 104 over a PC5 interface.
[0069] A network entity 102 may support communications with the CN 106, or with another network entity 102, or both. For example, a network entity 102 may interface with the CN 106 through one or more backhaul links 116 (e.g., via an S1, N2, N3, or another network interface) . The network entities 102 may communicate with each other over the backhaul links 116 (e.g., via an X2, Xn, or another network interface) . In some implementations, the network entities 102 may communicate with each other directly (e.g., between the network entities 102) . In some other implementations, the network entities 102 may communicate with each other or indirectly (e.g., via the CN 106) . In some implementations, one or more network entities 102 may include subcomponents, such as an access network entity, which may be an example of an access node controller (ANC) . An ANC may communicate with the one or more UEs 104 through one or more other access network transmission entities, which may be referred to as a radio heads, smart radio heads, or transmission-reception points (TRPs) .
[0070] In some implementations, a network entity 102 may be configured in a disaggregated architecture, which may be configured to utilize a protocol stack physically or logically distributed among two or more network entities 102, such as an integrated access backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN alliance) , or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN) ) . For example, a network entity 102 may include one or more of a central unit (CU) , a distributed unit (DU) , a radio unit (RU) , a RAN intelligent controller (RIC) (e.g., a near-real time RIC (Near-RT RIC) , a non-real time RIC (Non-RT RIC) ) , a service management and orchestration (SMO) system, or any combination thereof.
[0071] An RU may also be referred to as a radio head, a smart radio head, a remote radio head (RRH) , a remote radio unit (RRU) , or a transmission reception point (TRP) . One or more components of the network entities 102 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 102 may be located in distributed locations (e.g., separate physical locations) . In some implementations, one or more network entities 102 of a disaggregated RAN architecture may be implemented as virtual units (e.g., a virtual CU (VCU) , a virtual DU (VDU) , a virtual RU (VRU) ) .
[0072] Split of functionality between a CU, a DU, and an RU may be flexible and may support different functionalities depending upon which functions (e.g., network layer functions, protocol layer functions, baseband functions, radio frequency functions, and any combinations thereof) are performed at a CU, a DU, or an RU. For example, a functional split of a protocol stack may be employed between a CU and a DU such that the CU may support one or more layers of the protocol stack and the DU may support one or more different layers of the protocol stack. In some implementations, the CU may host upper protocol layer (e.g., a layer 3 (L3) , a layer 2 (L2) ) functionality and signaling (e.g., radio resource control (RRC) , service data adaption protocol (SDAP) , packet data convergence protocol (PDCP) ) . The CU may be connected to one or more DUs or RUs, and the one or more DUs or RUs may host lower protocol layers, such as a layer 1 (L1) (e.g., physical (PHY) layer) or an L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU.
[0073] Additionally, or alternatively, a functional split of the protocol stack may be employed between a DU and an RU such that the DU may support one or more layers of the protocol stack and the RU may support one or more different layers of the protocol stack. The DU may support one or multiple different cells (e.g., via one or more RUs) . In some implementations, a functional split between a CU and a DU, or between a DU and an RU may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU, a DU, or an RU, while other functions of the protocol layer are performed by a different one of the CU, the DU, or the RU) .
[0074] A CU may be functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions. A CU may be connected to one or more DUs via a midhaul communication link (e.g., F1, F1-C, F1-U) , and a DU may be connected to one or more RUs via a fronthaul communication link (e.g., open fronthaul (FH) interface) . In some implementations, a midhaul communication link or a fronthaul communication link may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities 102 that are in communication via such communication links.
[0075] The CN 106 may support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions. The CN 106 may be an evolved packet core (EPC) , or a 5G core (5GC) , which may include a control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management functions (AMF) ) and a user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a packet data network (PDN) gateway (P-GW) , or a user plane function (UPF) ) . In some implementations, the control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management (e.g., data bearers, signal bearers, etc. ) for the one or more UEs 104 served by the one or more network entities 102 associated with the CN 106.
[0076] The CN 106 may communicate with the packet data network 108 over one or more backhaul links 116 (e.g., via an S1, N2, N3, or another network interface) . The packet data network 108 may include an application server 118. In some implementations, one or more UEs 104 may communicate with the application server 118. A UE 104 may establish a session (e.g., a protocol data unit (PDU) session, or the like) with the CN 106 via a network entity 102. The CN 106 may route traffic (e.g., control information, data, and the like) between the UE 104 and the application server 118 using the established session (e.g., the established PDU session) . The PDU session may be an example of a logical connection between the UE 104 and the CN 106 (e.g., one or more network functions of the CN 106) .
[0077] In the wireless communications system 100, the network entities 102 and the UEs 104 may use resources of the wireless communications system 100 (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) ) to perform various operations (e.g., wireless communications) . In some implementations, the network entities 102 and the UEs 104 may support different resource structures. For example, the network entities 102 and the UEs 104 may support different frame structures. In some implementations, such as in 4G, the network entities 102 and the UEs 104 may support a single frame structure. In some other implementations, such as in 5G and among other suitable radio access technologies, the network entities 102 and the UEs 104 may support various frame structures (i.e., multiple frame structures) . The network entities 102 and the UEs 104 may support various frame structures based on one or more numerologies.
[0078] One or more numerologies may be supported in the wireless communications system 100, and a numerology may include a subcarrier spacing and a cyclic prefix. A first numerology (e.g., μ=0) may be associated with a first subcarrier spacing (e.g., 15 kHz) and a normal cyclic prefix. In some implementations, the first numerology (e.g., μ=0) associated with the first subcarrier spacing (e.g., 15 kHz) may utilize one slot per subframe. A second numerology (e.g., μ=1) may be associated with a second subcarrier spacing (e.g., 30 kHz) and a normal cyclic prefix. A third numerology (e.g., μ=2) may be associated with a third subcarrier spacing (e.g., 60 kHz) and a normal cyclic prefix or an extended cyclic prefix. A fourth numerology (e.g., μ=3) may be associated with a fourth subcarrier spacing (e.g., 120 kHz) and a normal cyclic prefix. A fifth numerology (e.g., μ=4) may be associated with a fifth subcarrier spacing (e.g., 240 kHz) and a normal cyclic prefix.
[0079] A time interval of a resource (e.g., a communication resource) may be organized according to frames (also referred to as radio frames) . Each frame may have a duration, for example, a 10 millisecond (ms) duration. In some implementations, each frame may include multiple subframes. For example, each frame may include 10 subframes, and each subframe may have a duration, for example, a 1 ms duration. In some implementations, each frame may have the same duration. In some implementations, each subframe of a frame may have the same duration.
[0080] Additionally or alternatively, a time interval of a resource (e.g., a communication resource) may be organized according to slots. For example, a subframe may include a number (e.g., quantity) of slots. The number of slots in each subframe may also depend on the one or more numerologies supported in the wireless communications system 100. For instance, the first, second, third, fourth, and fifth numerologies (i.e., μ=0, μ=1, μ=2, μ=3, μ=4) associated with respective subcarrier spacings of 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz may utilize a single slot per subframe, two slots per subframe, four slots per subframe, eight slots per subframe, and 16 slots per subframe, respectively. Each slot may include a number (e.g., quantity) of symbols (e.g., OFDM symbols) . In some implementations, the number (e.g., quantity) of slots for a subframe may depend on a numerology. For a normal cyclic prefix, a slot may include 14 symbols. For an extended cyclic prefix (e.g., applicable for 60 kHz subcarrier spacing) , a slot may include 12 symbols. The relationship between the number of symbols per slot, the number of slots per subframe, and the number of slots per frame for a normal cyclic prefix and an extended cyclic prefix may depend on a numerology. It should be understood that reference to a first numerology (e.g., μ=0) associated with a first subcarrier spacing (e.g., 15 kHz) may be used interchangeably between subframes and slots.
[0081] In the wireless communications system 100, an electromagnetic (EM) spectrum may be split, based on frequency or wavelength, into various classes, frequency bands, frequency channels, etc. By way of example, the wireless communications system 100 may support one or multiple operating frequency bands, such as frequency range designations FR1 (410 MHz –7.125 GHz) , FR2 (24.25 GHz –52.6 GHz) , FR3 (7.125 GHz –24.25 GHz) , FR4 (52.6 GHz –114.25 GHz) , FR4a or FR4-1 (52.6 GHz –71 GHz) , and FR5 (114.25 GHz –300 GHz) . In some implementations, the network entities 102 and the UEs 104 may perform wireless communications over one or more of the operating frequency bands. In some implementations, FR1 may be used by the network entities 102 and the UEs 104, among other equipment or devices for cellular communications traffic (e.g., control information, data) . In some implementations, FR2 may be used by the network entities 102 and the UEs 104, among other equipment or devices for short-range, high data rate capabilities.
[0082] FR1 may be associated with one or multiple numerologies (e.g., at least three numerologies) . For example, FR1 may be associated with a first numerology (e.g., μ=0) , which includes 15 kHz subcarrier spacing; a second numerology (e.g., μ=1) , which includes 30 kHz subcarrier spacing; and a third numerology (e.g., μ=2) , which includes 60 kHz subcarrier spacing. FR2 may be associated with one or multiple numerologies (e.g., at least 2 numerologies) . For example, FR2 may be associated with a third numerology (e.g., μ=2) , which includes 60 kHz subcarrier spacing; and a fourth numerology (e.g., μ=3) , which includes 120 kHz subcarrier spacing.
[0083] During IEEE 802.11be standardization, a task group (i.e., TGbe) develops several tools to support low latency traffic. These tools include multi-link operation (MLO) , restricted target wake time (R-TWT) and a stream classification service (SCS) based quality of service (QoS) signaling mechanisms. It has been proved that 802.11be using both R-TWT and SCS based QoS signaling can achieve a bounded latency of less than 25 ms. However, this is still not enough to meet industrial applications that require latencies of less than 1 ms to a few ms. While it is unclear if ultra-high reliability (UHR) study group (e.g., 802.11 bn (Wi-Fi 8) ) can meet this latency goal, it is expected that UHR builds on top of the mechanisms developed by 802.11be to further lower the maximum latency of Wi-Fi.
[0084] An original target wake time (TWT) mechanism provides pre-defined service periods (SPs) for STAs to transmit and receive packets for a purpose of power optimization, i.e., STAs can switch from a power state to a doze state except in their allocated TWT SPs. During a STA’s allocated TWT, the STA may find a problem that a channel is busy due to another STA (e.g., a STA that starts a transmission just before a start of a TWT SP) . The R-TWT mechanism is a variant of the original TWT mechanism that solves this problem. 802.11be devices support the restricted TWT mechanism. In the R-TWT mechanism, STAs are required to end their current transmissions before a start of an R-TWT SP.
[0085] An R-TWT membership may be established between an AP and one or more STAs. By negotiating with the AP, an STA may become a member of the R-TWT mechanism, and thus may transmit data in an R-TWT SP allocated for the STA. In the other hand, by negotiating with the AP, an STA may not become a member of the R-TWT mechanism, and thus may not transmit data in any R-TWT SP.
[0086] FIG. 2 illustrates a diagram 200 illustrating an R-TWT mechanism in which some embodiments of the present disclosure can be implemented. In this example, STA1 has low priority data and is not a member of an R-TWT mechanism, and STA2 has high priority data (e.g., low latency traffic) and is a member of an R-TWT mechanism. As shown in FIG. 2, during an R-TWT SP 210, in response to a trigger frame 211 from an AP, STA2 may transmit high priority data 212. STA1 ensures that its transmission of low priority data 201 finishes before the R-TWT SP 210 starts, and continues transmitting any remaining data 202 after the R-TWT SP 210.
[0087] While the R-TWT mechanism provides increased determinism specially for periodic low latency traffic, it may be ineffective in providing protection for non-periodic low latency traffic use cases. Non-periodic low latency traffic may include emergency stop packets for wirelessly controlled factory robots and sensor packets for VR and game controllers. When non-periodic high priority data arrives to a STA while the STA is already transmitting low priority data, there is currently no way for the STA to transmit the non-periodic high priority data until the on-going transmission finishes. Interrupting an ongoing transmission to transmit higher priority data is currently not supported in 802.11be. How to interrupt an ongoing transmission to transmit higher priority data needs to be solved and supported in future Wi-Fi release, e.g., 802.11bn (Wi-Fi 8) . Hence, some scheduling enhancement needs to be studied to support non-periodic low latency traffic.
[0088] Embodiments of the present disclosure provide a solution of communication for low latency traffic. In the solution, upon determination that a first transmission of first data is to be performed while a second transmission of second data is ongoing, a UE may transmit information of the first data to a network entity. The first data is non-periodic and has a priority higher than a priority threshold, i.e., the first data is non-periodic high priority data. Based on the information of the first data, the network entity may transmit first information indicating the first transmission to the UE, and transmit second information indicating the second transmission to the UE. The UE may perform the first transmission based on the first information, and perform the second transmission based on the second information. In this way, a transmission of non-periodic high priority data may be enabled.
[0089] In the context of the present disclosure, the term “low latency data” herein may refer to data of low latency traffic, or data with a latency lower than or equal to a latency threshold, or data with a priority higher than or equal to a priority threshold. The term “low latency data” may be interchangeably used with “high priority data” . The term “high priority data” herein may refer to data with a priority higher than or equal to a priority threshold, and the term “low priority data” herein may refer to data with a priority lower than or equal to the priority threshold. The term “data” herein may refer to one or more frames or any other data units.
[0090] Embodiments of the present disclosure consider three possible scenarios where non-periodic low latency data may come from a STA. Scenario 1: the STA does not have the R-TWT mechanism, i.e., the STA does not participate in negotiation of the R-TWT mechanism or does not use or apply the R-TWT mechanism. Scenario 2: the STA is already a member of the R-TWT mechanism, i.e., the STA has or uses or applies the R-TWT mechanism and performs data transmission within a R-TWT SP. Scenario 3: the STA is not a member of the R-TWT mechanism yet, i.e., the STA has or uses or applies the R-TWT mechanism and performs data transmission outside a R-TWT SP.
[0091] For scenario 1, some example embodiments will be described in connection with FIGs. 3A to 3C below. FIG. 3A illustrates a signaling chart illustrating a process 300A of communication that supports low latency traffic in accordance with aspects of the present disclosure. The process 300A may involve the UE 104 and the network entity 102 as shown in FIG. 1. In some embodiments, the network entity 102 may be an AP, and the UE 104 may be a STA or a non-AP STA. In this example, the UE 104 does not have the R-TWT mechanism.
[0092] As shown in FIG. 3A, at step 310, upon arrival of non-periodic high priority data (also referred to as first data herein) while a transmission of other data (also referred to as second data herein) is ongoing at the UE 104, the UE 104 may transmit information of the non-periodic high priority data to the network entity 102. In some embodiments, the second data may be high priority data. In some embodiments, the second data may be low priority data.
[0093] In some embodiments, the information of the non-periodic high priority data may comprise information of the priority of the non-periodic high priority data. In some embodiments, the information of the priority may comprise one or more of the following: a traffic priority of the non-periodic high priority data, or a service priority of the non-periodic high priority data. It is to be noted that any other suitable priority information may also be feasible.
[0094] In some embodiments, the information of the non-periodic high priority data may comprise information of one or more requirements of the non-periodic high priority data. In some embodiments, the information of one or more requirements may comprise one or more of the following: QoS requirement, or latency requirement. It is to be noted that any other suitable requirement information may also be feasible.
[0095] In some embodiments, the information of the non-periodic high priority data may comprise information related to a transmission timing of the non-periodic high priority data. In some embodiments, the information related to the transmission timing may comprise one or more of the following: a starting time point of a transmission (also referred to as a first transmission herein) of the non-periodic high priority data, a duration of the first transmission, or an ending time point of the first transmission. It is to be noted that any other suitable timing related information may also be feasible.
[0096] In some embodiments, the information of the non-periodic high priority data may comprise information of an urgent level of the non-periodic high priority data. In some embodiments, the information of the urgent level may comprise a degree of emergency, e.g., low, medium, or high. It is to be noted that any other suitable urgent level information may also be feasible. It is also to be noted that any combinations of the above information of the non-periodic high priority data may also be feasible.
[0097] With reference to FIG. 3A, at step 311, the network entity 102 may transmit, to the UE 104, information indicating whether the information of the non-periodic high priority data is received correctly. In some embodiments, if the network entity 102 receives the information of the non-periodic high priority data correctly, the network entity 102 may transmit an acknowledgement (ACK) frame to the UE 104.
[0098] In some embodiments, if the network entity 102 receives the information of the non-periodic high priority data incorrectly, the network entity 102 may transmit an indication (e.g., a non-acknowledgement (NACK) frame) for retransmitting the information of the non-periodic high priority data to the UE 104. Upon reception of the indication, the UE 104 may retransmit the information of the non-periodic high priority data, e.g., with a predefined repetition number.
[0099] As such, the information of the non-periodic high priority data may be reported to the network device 102. Thus, a scheduling for the transmission of the non-periodic high priority data may be facilitated.
[0100] Continuing to refer to FIG. 3A, at step 312, upon reception of the information of the non-periodic high priority data, the network entity 102 may compare a priority of the non-periodic high priority data and a priority of the second data whose transmission (also referred to as second transmission herein) is ongoing.
[0101] At step 313, if the priority of the non-periodic high priority data is higher than the priority of the second data, the network entity 102 may transmit information (also referred to as first information herein) indicating the transmission of the non-periodic high priority data. In some embodiments, the first information may comprise an indication of starting the transmission of the non-periodic high priority data. In some embodiments, the first information may comprise a duration for the transmission of the non-periodic high priority data.
[0102] As shown in step 314, the UE 104 may perform the transmission of the non-periodic high priority data based on the first information. In some embodiments, if the non-periodic high priority data is received incorrectly, the network entity 102 may transmit, to the UE 104, an indication (e.g., a NACK frame) of retransmitting the non-periodic high priority data. Upon reception of the indication, the UE 104 may retransmit the non-periodic high priority data, e.g., with a predefined repetition number. In some embodiments, if the non-periodic high priority data is received correctly, the network entity 102 may determine that the transmission of the non-periodic high priority data is completed.
[0103] As shown in step 315, upon determination that the transmission of the non-periodic high priority data is completed, the network entity 102 may transmit information (also referred to as second information herein) indicating a continuation transmission of the second data. In some embodiments, the second information may comprise an indication (e.g., an ACK frame) of completion of the transmission of the non-periodic high priority data. In some embodiments, the second information may comprise an indication (e.g., an ACK frame) of continuing the transmission of the second data. In some embodiments, the second information may comprise the duration for the transmission of the non-periodic high priority data.
[0104] As shown in step 316, based on the second information, the UE 104 may continue to transmit the second data. In some embodiments, upon reception of the indication of completion of the transmission of the non-periodic high priority data, the UE 104 may continue to transmit the second data. In some embodiments, upon reception of the indication of continuing the transmission of the second data, the UE 104 may continue to transmit the second data. In some embodiments, upon expiry of the duration for the transmission of the non-periodic high priority data, the UE 104 may continue to transmit the second data.
[0105] With the process 300A, a UE may terminate an ongoing data transmission and start a transmission of non-periodic high priority data.
[0106] FIG. 3B illustrates a signaling chart illustrating another process 300B of communication that supports low latency traffic in accordance with aspects of the present disclosure. The process 300B may involve the UE 104 and the network entity 102 as shown in FIG. 1. In some embodiments, the network entity 102 may be an AP, and the UE 104 may be a STA or a non-AP STA. In this example, the UE 104 does not have the R-TWT mechanism, and an ongoing transmission is a transmission of high priority data.
[0107] As shown in FIG. 3B, at step 320, upon arrival of non-periodic high priority data (i.e., the first data) while a transmission of high priority data (i.e., the second data) is ongoing at the UE 104, the UE 104 may evaluate remaining time for the transmission of the high priority data.
[0108] As shown in step 321, if the remaining time of the high priority data is less than or equal to a time threshold, the UE 104 may continue to perform the transmission of the high priority data. In some embodiments, the time threshold may be set based on a latency requirement of the non-periodic high priority data. For example, if the remaining time of the high priority data is less than or equal to the latency requirement of the non-periodic high priority data, the UE 104 may continue to perform the transmission of the high priority data. It is to be noted that the time threshold may be set in any other suitable ways.
[0109] As shown in step 322, after completion of the transmission of the high priority data, the UE 104 may transmit a request for transmitting the non-periodic high priority data to the network entity 102. In some embodiments, the request may comprise the information of the one or more requirements of the non-periodic high priority data. In some embodiments, the request may comprise the information related to the transmission timing of the non-periodic high priority data.
[0110] It is to be noted that the request may comprise any combinations of the above information or any other suitable information. It is also to be noted that the information of the one or more requirements of the non-periodic high priority data and the information related to the transmission timing of the non-periodic high priority data are the same as that described in the step 310 of the process 300A, and thus are not repeated here for conciseness.
[0111] As shown in step 323, the network entity 102 may transmit a response to the request to the UE 104. The response may indicate the transmission of the non-periodic high priority data. For example, the response may comprise an indication of starting the transmission of the non-periodic high priority data. It is to be noted that the response may comprise any other suitable information.
[0112] As shown in step 324, based on the response, the UE 104 may perform the transmission of the non-periodic high priority data.
[0113] Continuing to refer to FIG. 3B, at step 325, if the remaining time of the high priority data is larger than or equal to the time threshold, the UE 104 may transmit the information of the non-periodic high priority data to the network entity 102 as described in the step 310. Then the operations in the steps 311 to 316 in the process 300A may be reused.
[0114] With the process 300B, a UE may continue to transmit the high priority data and start transmitting the non-periodic high priority data once finishing the transmission of the high priority data.
[0115] FIG. 3C illustrates a signaling chart illustrating another process 300C of communication that supports low latency traffic in accordance with aspects of the present disclosure. The process 300C may involve the UE 104 and the network entity 102 as shown in FIG. 1. In some embodiments, the network entity 102 may be an AP, and the UE 104 may be a STA or a non-AP STA. In this example, the UE 104 does not have the R-TWT mechanism, and an ongoing transmission is a transmission of high priority data.
[0116] As shown in FIG. 3C, at step 330, upon arrival of non-periodic high priority data (i.e., the first data) while a transmission of high priority data (i.e., the second data) is ongoing at the UE 104, the UE 104 may evaluate a size of the non-periodic high priority data.
[0117] As shown in step 331, if the size of the non-periodic high priority data is less than or equal to a size threshold, the UE 104 may transmit the non-periodic high priority data via one or more remaining channels (e.g., remaining discontinuous channels) for the transmission of the high priority data. In other words, the UE 104 may transmit the non-periodic high priority data jointly with the ongoing transmission of the high priority data via padding. In some embodiments, the size threshold may be predefined or configured. It is to be noted that the size threshold may be set in any suitable ways.
[0118] As shown in step 332, if the size of the non-periodic high priority data is larger than or equal to the size threshold, the UE 104 may transmit the information of the non-periodic high priority data to the network entity 102 as described in the step 310. Then the operations in the steps 311 to 316 in the process 300A may be reused.
[0119] With the process 300C, a UE may transmit non-periodic high priority data via padding jointly with an ongoing high priority data transmission.
[0120] For scenario 2, some example embodiments will be described in connection with FIGs. 4 to 5C below. FIG. 4 illustrates a signaling chart illustrating a process 400 of communication that supports low latency traffic in accordance with aspects of the present disclosure. The process 400 may involve the network entity 102 as illustrated in FIG. 1 and UEs 104-1 and 104-2. The UE 104-1 or 104-2 may be any of the UEs 104 as illustrated in FIG. 1. In some embodiments, the network entity 102 may be an AP, and the UEs 104-1 and 104-2 may be STAs or non-AP STAs. In this example, the UE 104-1 is a member of the R-TWT mechanism, and the UE 104-2 has the R-TWT mechanism but is not a member of the R-TWT mechanism. Non-periodic high priority data arrives at the UE 104-1, and an ongoing transmission is a transmission of periodic high priority data. The UE 104-2 performs a transmission (also referred to as a third transmission herein) of low priority data (also referred to as third data herein) .
[0121] As shown in FIG. 4, at step 410, upon arrival of non-periodic high priority data (i.e., the first data) while a transmission of periodic high priority data (i.e., the second data) is ongoing at the UE 104-1, the UE 104-1 may transmit the information of the non-periodic high priority data to the network entity 102. The transmission of the information of the non-periodic high priority data may be carried out as described in the steps 310 and 311, and thus is not detailed here for conciseness.
[0122] At step 420, upon reception of information of the non-periodic high priority data, the network entity 102 may evaluate whether an R-TWT SP is enough for the transmissions of the periodic high priority data and the non-periodic high priority data.
[0123] At step 430, if the R-TWT SP is enough for the transmissions of the periodic high priority data and the non-periodic high priority data, the network entity 102 may transmit, to the UE 104-1, information (also referred to as first information herein) indicating the transmission of the non-periodic high priority data, and information (also referred to as second information herein) indicating the transmission of the periodic high priority data. In some embodiments, the network entity 102 may determine the first information and the second information based on priorities of the periodic high priority data and the non-periodic high priority data.
[0124] In some embodiments, if the priority of the non-periodic high priority data is higher than or equal to the priority of the periodic high priority data, the network entity 102 may transmit, to the UE 104-1, a trigger frame for the transmission of the non-periodic high priority data, and timing information (also referred to as a backoff indication herein) for the transmission of the periodic high priority data. In this case, the first information comprises the trigger frame for the transmission of the non-periodic high priority data, and the second information comprises the timing information for the transmission of the periodic high priority data.
[0125] In some embodiments, if the priority of the non-periodic high priority data is lower than or equal to the priority of the periodic high priority data, the network entity 102 may transmit, to the UE 104-1, a trigger frame for the transmission of the periodic high priority data, and timing information (also referred to as a backoff indication herein) for the transmission of the non-periodic high priority data. In this case, the first information comprises the timing information for the transmission of the non-periodic high priority data, and the second information comprises the trigger frame for the transmission of the periodic high priority data.
[0126] In some embodiments, the timing information for the transmission of the periodic or non-periodic high priority data may comprise a starting time point and a duration in an R-TWT SP (i.e., the current R-TWT SP, also referred to or a first R-TWT SP herein) associated with the transmission of the periodic high priority data. In some embodiments, the timing information for the transmission of the periodic or non-periodic high priority data may comprise one or more R-TWT SPs following the current R-TWT SP, i.e., the next R-TWT SP or the next several R-TWT SPs. In some embodiments, the timing information for the transmission of the periodic or non-periodic high priority data may comprise a starting time point in the current R-TWT SP. In some embodiments, the timing information for the transmission of the periodic or non-periodic high priority data may comprise a starting time point in the one or more R-TWT SPs following the current R-TWT SP.
[0127] Continuing to refer to FIG. 4, at step 440, if the R-TWT SP is not enough for the transmissions of the periodic high priority data and the non-periodic high priority data, the network entity 102 may transmit the periodic and non-periodic high priority data by adjusting the R-TWT SP.
[0128] As shown in step 441, the network entity 102 may transmit information of an adjusted R-TWT SP to UEs (e.g., the UEs 104-1 and 104-2) . The adjusted R-TWT SP is enough for the transmissions of the periodic high priority data and the non-periodic high priority data.
[0129] In some embodiments, the network entity 102 may transmit beacon frames to UEs (e.g., the UEs 104-1 and 104-2) to announce the information of the adjusted R-TWT SP. In some embodiments, the UE 104-2 may monitor whether there is a beacon frame targeted for the UE 104-2 within a time offset since an ending of the transmission of the low priority data.
[0130] In some embodiments, the information of the adjusted R-TWT SP may comprise a time window of the adjusted R-TWT SP, e.g., an accurate time period of the adjusted R-TWT SP. In some embodiments, the information of the adjusted R-TWT SP may comprise a time offset of the adjusted R-TWT SP with respect to a R-TWT SP before adjustment, i.e., extended time or time offset compared with the former R-TWT SP.
[0131] In some embodiments, the information of the adjusted R-TWT SP may comprise information of validation of the adjusted R-TWT SP. In some embodiments, the information of the validation may indicate that the adjusted R-TWT SP is valid for the current R-TWT SP. In some embodiments, the information of the validation may indicate that the adjusted R-TWT SP is valid for the one or more R-TWT SPs following the current R-TWT SP.
[0132] As shown in step 442, after adjusting the R-TWT SP, the network entity 102 may transmit, to the UE 104-1, information (i.e., the first information herein) indicating the transmission of the non-periodic high priority data, and information (i.e., the second information) indicating the transmission of the periodic high priority data. The transmission of the first and second information is similar as that described in the step 430, and thus is not repeated here for conciseness.
[0133] FIG. 5A illustrates a diagram 500A illustrating an example transmission of periodic and non-periodic high priority data in accordance with aspects of the present disclosure. In this example, STA2 is a member of the R-TWT mechanism, and STA1 is not a member of the R-TWT mechanism. As shown in FIG. 5A, an AP may transmit a beacon frame 510 to announce information of an adjusted R-TWT SP 511. STA1 may monitor and receive the beacon frame 510 within a time offset 512 since an ending of a low priority data transmission 513. STA2 may also monitor and receive the beacon frame 510.
[0134] In the example of FIG. 5A, it is assumed that a priority of periodic high priority data is higher than a priority of non-periodic high priority data. As shown in FIG. 5A, after R-TWT SP adjustment, the AP may transmit a trigger frame 520 for STA2 to start transmitting periodic high priority data 514, and transmit a backoff indication for STA2 to transmit the non-periodic high priority data 515 after the transmission of the periodic high priority data 514. After the adjusted R-TWT SP 511, STA1 may perform the remaining low priority data transmission 516.
[0135] In some alternative embodiments, as shown in step 450 of FIG. 4, if the R-TWT SP is not enough for the transmissions of the periodic high priority data and the non-periodic high priority data, the network entity 102 may transmit one of the periodic and non-periodic high priority data during the R-TWT SP, and transmit the other of the periodic and non-periodic high priority data outside the R-TWT SP.
[0136] In some embodiments, if the priority of the non-periodic high priority data is higher than or equal to the periodic high priority data, the network entity 102 may transmit, to the UE 104-1, a trigger frame for the UE 104-1 to transmit the non-periodic high priority data. The network entity 120 may also transmit, to the UE 104-1, timing information (i.e., a backoff indication) for transmission of the periodic high priority data. In this case, the first information may comprise the trigger frame, and the second information may comprise the timing information. In some embodiments, the timing information may comprise a starting time point of the transmission of the periodic high priority data. In some embodiments, the timing information may comprise a starting time point and a duration of the transmission of the periodic high priority data. In some embodiments, the timing information may comprise a starting time point and an ending time point of the transmission of the periodic high priority data.
[0137] In some embodiments, if the priority of the non-periodic high priority data is lower than or equal to the periodic high priority data, the network entity 102 may transmit, to the UE 104-1, a trigger frame for the UE 104-1 to transmit the periodic high priority data. The network entity 120 may also transmit, to the UE 104-1, timing information (i.e., a backoff indication) for transmission of the non-periodic high priority data. In this case, the first information may comprise the timing information, and the second information may comprise the trigger frame. In some embodiments, the timing information may comprise a starting time point of the transmission of the non-periodic high priority data. In some embodiments, the timing information may comprise a starting time point and a duration of the transmission of the non-periodic high priority data. In some embodiments, the timing information may comprise a starting time point and an ending time point of the transmission of the non-periodic high priority data.
[0138] In some embodiments, as shown in step 451, the network entity 120 may transmit, to the UE 104-1, a beacon frame with the timing information for the transmission of the periodic or non-periodic high priority data. In some embodiments, the UE 104-1 may monitor the beacon frame within a time offset since completion of the transmission of the non-periodic high priority data during the R-TWT SP.
[0139] In some embodiments, as shown in step 452, the network entity 120 may also transmit, to the UE 104-2, timing information (e.g., a backoff indication) for the transmission of the low priority data. In some embodiments, the timing information may comprise a value for a backoff timer of the transmission of the low priority data, e.g., absolute time, 10s. In some embodiments, the timing information may comprise a starting time point and a duration of the backoff timer. In some embodiments, the timing information may comprise a starting time point and an ending time point of the backoff timer.
[0140] As shown in step 453, after receiving indications (e.g., ACK frames) from the UEs 104-1 and 104-2, the network entity may transmit a trigger frame to the UE 104-1 to continue to transmit the periodic or non-periodic high priority data outside the R-TWT SP.
[0141] FIG. 5B illustrates a diagram 500B illustrating another example transmission of periodic and non-periodic high priority data in accordance with aspects of the present disclosure. In this example, STA2 is a member of the R-TWT mechanism, and STA1 is not a member of the R-TWT mechanism. In the example of FIG. 5B, it is assumed that a priority of periodic high priority data is higher than a priority of non-periodic high priority data.
[0142] As shown in FIG. 5B, an AP may transmit a trigger frame 520 for STA2 to transmit the periodic high priority data 521 during an R-TWT SP 522. The AP may also transmit, to STA2, a beacon frame 523 comprising timing information of the transmission of the non-periodic priority data 524. The AP may also transmit, to STA2, a beacon frame comprising timing information (e.g., backoff timer) of the transmission of the low priority data 525.
[0143] As shown in FIG. 5B, STA2 may monitor and receive the beacon frame 523 within a time offset 526 since completion of the transmission of the periodic priority data 521. The AP may also transmit a trigger frame 527 for STA2 to start transmitting the non-periodic high priority data 524.
[0144] In some alternative embodiments, as shown in step 460 of FIG. 4, upon reception of the information of the non-periodic high priority data, the network entity 102 may wake up all UEs (e.g., the UEs 104-1 and 104-2) to monitor a beacon frame during a time window, e.g., the nearest beacon frame in the time window.
[0145] In some embodiments, as shown in step 461, the network entity 102 may transmit, to the UE104-1 via the beacon frame, the first information indicating the transmission of the non-periodic high priority data. The first information may comprise an indication of occupying a channel used for the transmission of the low priority data.
[0146] As shown in step 462, the network entity 102 may also transmit, to the UE 104-2, information (also referred to as failure cause herein) indicating a failure of the transmission of the low priority data. In some embodiments, the failure cause may indicate that a channel occupying occurs. In some embodiments, the failure information may indicate that the channel occupying is performed by the UE 104-1. In some embodiments, the failure information may indicate a starting time point of the channel occupying. In some embodiments, the failure information may indicate a duration of the channel occupying. In some embodiments, the failure information may indicate an ending time point of the channel occupying.
[0147] FIG. 5C illustrates a diagram 500C illustrating another example transmission of periodic and non-periodic high priority data in accordance with aspects of the present disclosure. In this example, STA2 is a member of the R-TWT mechanism. As shown in FIG. 5C, upon reception of the information of the non-periodic high priority data from STA2, an AP may wake up all STAs to monitor the nearest beacon frame during a time window, e.g., a beacon frame 530. The AP may transmit, via the nearest beacon frame, an indication indicating STA2 to transmit the non-periodic high priority data by occupying a channel used for STA1 transmitting the low priority data. After STA2 monitors the beacon frame with the indication of occupying the channel, STA2 may transmit the non-periodic high priority data 531 to the AP using the channel for STA1 transmitting the low priority data. The AP may also transmit, via the next beacon frame (e.g., beacon frame 532) , a failure indication to STA1 to indicate the failure cause. As shown in FIG. 5C, STA2 transmits periodic high priority data 533 during an R-TWT SP 534.
[0148] Continuing to refer to FIG. 4, at step 470, upon reception of the first information for the transmission of the non-periodic high priority data, the UE 104-1 may transmit the non-periodic high priority data based on the first information. At step 480, upon reception of the second information for the transmission of the periodic high priority data, the UE 104-1 may transmit the periodic high priority data based on the second information.
[0149] With the process 400, a UE may transmit non-periodic and periodic high priority data in an efficient way.
[0150] For scenario 3, some example embodiments will be described in connection with FIGs. 6 and 7 below. FIG. 6 illustrates a signaling chart illustrating another process 600 of communication that supports low latency traffic in accordance with aspects of the present disclosure. The process 600 may involve the network entity 102 as illustrated in FIG. 1 and UE 104-2. Although not shown, the process 600 may also involve UE 104-1. The UE 104-1 or 104-2 may be any of the UEs 104 as illustrated in FIG. 1. In some embodiments, the network entity 102 may be an AP, and the UEs 104-1 and 104-2 may be STAs or non-AP STAs. In this example, the UE 104-1 is a member of the R-TWT mechanism, and the UE 104-2 has the R-TWT mechanism but is not a member of the R-TWT mechanism. Non-periodic high priority data arrives at the UE 104-2, and an ongoing transmission is a transmission of low priority data.
[0151] As shown in FIG. 6, at step 610, upon arrival of non-periodic high priority data (i.e., the first data) while a transmission of low priority data (i.e., the second data) is ongoing at the UE 104-2, the UE 104-2 may cache the non-periodic high priority data till a member of the R-TWT mechanism (e.g., the UE 104-1) completes a transmission of periodic high priority data during an R-TWT SP.
[0152] At step 620, once the UE 104-1 completes the transmission of the periodic high priority data during the R-TWT SP or the R-TWT SP expires, the UE 104-2 may transmit the information of the non-periodic high priority data to the network entity 102. The transmission of the information of the non-periodic high priority data may be carried out as described in the steps 310 and 311, and thus is not detailed here for conciseness.
[0153] At step 630, upon reception of information of the non-periodic high priority data, the network entity 102 may transmit, to the UE 104-2, information (i.e., the first information) indicating the transmission of the non-periodic high priority data, and information (i.e., the second information) indicating the transmission of the low priority data. The first information comprises a trigger frame for the transmission of the non-periodic high priority data. The second information comprises timing information for the transmission of the low priority data.
[0154] In some embodiments, the timing information may comprise a value for a backoff timer of the transmission of the low priority data, e.g., absolute time, 10s. In some embodiments, the timing information may comprise a starting time point and a duration of the backoff timer. In some embodiments, the timing information may comprise a starting time point and an ending time point of the backoff timer. In some embodiments, the timing information may comprise one or more R-TWT wake intervals.
[0155] At step 640, the UE 104-2 may transmit the non-periodic high priority data based on the first information. At step 650, the UE 104-2 may transmit the low priority data based on the second information.
[0156] FIG. 7 illustrates a diagram 700 illustrating an example transmission of low priority data and non-periodic high priority data in accordance with aspects of the present disclosure. In this example, STA1 has the R-TWT mechanism but is not a member of the R-TWT mechanism, and STA2 is a member of the R-TWT mechanism. As shown in FIG. 7, non-periodic high priority data 701 may arrive at STA1 during an R-TWT SP 702. STA1 may cache the non-periodic high priority data 701 till periodic high priority data 703 of STA2 is completed. STA1 may transmit information of the non-periodic high priority data 701 to an AP. The AP may transmit timing information (e.g., a backoff timer) for the transmission of the low priority data 704. Upon reception of a trigger frame 705 from the AP, STA1 may transmit the non-periodic high priority data 701.
[0157] As such, a low priority data transmission may be terminated and a non-periodic high priority data transmission may be ensured.
[0158] In some alternative embodiments, refer back to step 660 of FIG. 6, upon arrival of the non-periodic high priority data (i.e., the first data) while the transmission of low priority data (i.e., the second data) is ongoing at the UE 104-2, the UE 104-2 may request to leave the R-TWT mechanism and occupy (e.g., preempt) a channel to transmit the non-periodic high priority data via contention resolution.
[0159] In some embodiments, at step 661, the UE 104-2 may transmit, to the network entity 102, a request for leaving the R-TWT mechanism. In some embodiments, the UE 104-2 may transmit the request alone with the information of the non-periodic high priority data.
[0160] At step 662, the network entity 102 may transmit, to the UE 104-2, information (i.e., the first information) indicating the transmission of the non-periodic high priority data. The first information indicates that the UE 104-2 is allowed to leave the R-TWT mechanism.
[0161] At step 663, upon reception of the first information, the UE 104-2 may determine a channel for the transmission of the non-periodic high priority data. In some embodiments, the UE 104-2 may occupy the channel via contention resolution. In some embodiments, the UE 104-2 may receive an indication of the channel from the network entity 102. For example, the indication of the channel may be transmitted along with the first information indicating that the UE 104-2 is allowed to leave the R-TWT mechanism.
[0162] With the process 600, an efficient transmission of non-periodic high priority data may be ensured. It is to be noted that operations or steps described in any one or more of the above processes may be carried out separately or in any suitable combinations.
[0163] FIG. 8 illustrates an example of a device 800 that supports low latency traffic in accordance with aspects of the present disclosure. The device 800 may be an example of a UE or a network entity as described herein. The device 800 may support wireless communication with one or more network entities, UEs, or any combination thereof. The device 800 may include components for bi-directional communications including components for transmitting and receiving communications, such as a processor 802, a memory 804, a transceiver 806, and, optionally, an I / O controller 808. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
[0164] The processor 802, the memory 804, the transceiver 806, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. For example, the processor 802, the memory 804, the transceiver 806, or various combinations or components thereof may support a method for performing one or more of the operations described herein.
[0165] In some implementations, the processor 802, the memory 804, the transceiver 806, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include a processor, a digital signal processor (DSP) , an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure. In some implementations, the processor 802 and the memory 804 coupled with the processor 802 may be configured to perform one or more of the functions described herein (e.g., executing, by the processor 802, instructions stored in the memory 804) .
[0166] For example, the processor 802 may support wireless communication at the device 800 in accordance with examples as disclosed herein. In some embodiments where the device 800 is used to implement a UE (e.g., the UE 104) , the processor 802 may be configured to operable to support a means for: in accordance with a determination that a first transmission of first data is to be performed while a second transmission of second data is ongoing, transmitting information of the first data to a network entity, wherein the first data is non-periodic and has a priority higher than a priority threshold; in accordance with a determination that first information indicating the first transmission is received from the network entity, performing the first transmission based on the first information; and in accordance with a determination that second information indicating the second transmission is received from the network entity, performing the second transmission based on the second information.
[0167] In some embodiments where the device 800 is used to implement a network entity (e.g., the network entity 102) , the processor 802 may be configured to operable to support a means for: receiving information of first data from a UE while a second transmission of second data is ongoing, wherein the first data is non-periodic and has a priority higher than a priority threshold; transmitting, to the UE, first information indicating a first transmission of the first data; and transmitting, to the UE, second information indicating the second transmission of the second data.
[0168] The processor 802 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) . In some implementations, the processor 802 may be configured to operate a memory array using a memory controller. In some other implementations, a memory controller may be integrated into the processor 802. The processor 802 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 804) to cause the device 800 to perform various functions of the present disclosure.
[0169] The memory 804 may include random access memory (RAM) and read-only memory (ROM) . The memory 804 may store computer-readable, computer-executable code including instructions that, when executed by the processor 802 cause the device 800 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some implementations, the code may not be directly executable by the processor 802 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some implementations, the memory 804 may include, among other things, a basic I / O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.
[0170] The I / O controller 808 may manage input and output signals for the device 800. The I / O controller 808 may also manage peripherals not integrated into the device 800. In some implementations, the I / O controller 808 may represent a physical connection or port to an external peripheral. In some implementations, the I / O controller 808 may utilize an operating system such as or another known operating system. In some implementations, the I / O controller 808 may be implemented as part of a processor, such as the processor 806. In some implementations, a user may interact with the device 800 via the I / O controller 808 or via hardware components controlled by the I / O controller 808.
[0171] In some implementations, the device 800 may include a single antenna 810. However, in some other implementations, the device 800 may have more than one antenna 810 (i.e., multiple antennas) , including multiple antenna panels or antenna arrays, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 806 may communicate bi-directionally, via the one or more antennas 810, wired, or wireless links as described herein. For example, the transceiver 806 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 806 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 810 for transmission, and to demodulate packets received from the one or more antennas 810. The transceiver 806 may include one or more transmit chains, one or more receive chains, or a combination thereof.
[0172] A transmit chain may be configured to generate and transmit signals (e.g., control information, data, packets) . The transmit chain may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. The at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM) , frequency modulation (FM) , or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM) . The transmit chain may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium. The transmit chain may also include one or more antennas 810 for transmitting the amplified signal into the air or wireless medium.
[0173] A receive chain may be configured to receive signals (e.g., control information, data, packets) over a wireless medium. For example, the receive chain may include one or more antennas 810 for receive the signal over the air or wireless medium. The receive chain may include at least one amplifier (e.g., a low-noise amplifier (LNA) ) configured to amplify the received signal. The receive chain may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal. The receive chain may include at least one decoder for decoding the processing the demodulated signal to receive the transmitted data.
[0174] FIG. 9 illustrates an example of a processor 900 that supports low latency traffic in accordance with aspects of the present disclosure. The processor 900 may be an example of a processor configured to perform various operations in accordance with examples as described herein. The processor 900 may include a controller 902 configured to perform various operations in accordance with examples as described herein. The processor 900 may optionally include at least one memory 904, such as L1 / L2 / L3 cache. Additionally, or alternatively, the processor 900 may optionally include one or more arithmetic-logic units (ALUs) 906. One or more of these components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
[0175] The processor 900 may be a processor chipset and include a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) in accordance with examples as described herein. The processor chipset may include one or more cores, one or more caches (e.g., memory local to or included in the processor chipset (e.g., the processor 900) or other memory (e.g., random access memory (RAM) , read-only memory (ROM) , dynamic RAM (DRAM) , synchronous dynamic RAM (SDRAM) , static RAM (SRAM) , ferroelectric RAM (FeRAM) , magnetic RAM (MRAM) , resistive RAM (RRAM) , flash memory, phase change memory (PCM) , and others) .
[0176] The controller 902 may be configured to manage and coordinate various operations (e.g., signaling, receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) of the processor 900 to cause the processor 900 to support various operations in accordance with examples as described herein. For example, the controller 902 may operate as a control unit of the processor 900, generating control signals that manage the operation of various components of the processor 900. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating timing of operations.
[0177] The controller 902 may be configured to fetch (e.g., obtain, retrieve, receive) instructions from the memory 904 and determine subsequent instruction (s) to be executed to cause the processor 900 to support various operations in accordance with examples as described herein. The controller 902 may be configured to track memory address of instructions associated with the memory 904. The controller 902 may be configured to decode instructions to determine the operation to be performed and the operands involved. For example, the controller 902 may be configured to interpret the instruction and determine control signals to be output to other components of the processor 900 to cause the processor 900 to support various operations in accordance with examples as described herein. Additionally, or alternatively, the controller 902 may be configured to manage flow of data within the processor 900. The controller 902 may be configured to control transfer of data between registers, arithmetic logic units (ALUs) , and other functional units of the processor 900.
[0178] The memory 904 may include one or more caches (e.g., memory local to or included in the processor 900 or other memory, such RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some implementation, the memory 904 may reside within or on a processor chipset (e.g., local to the processor 900) . In some other implementations, the memory 904 may reside external to the processor chipset (e.g., remote to the processor 900) .
[0179] The memory 904 may store computer-readable, computer-executable code including instructions that, when executed by the processor 900, cause the processor 900 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. The controller 902 and / or the processor 900 may be configured to execute computer-readable instructions stored in the memory 904 to cause the processor 900 to perform various functions. For example, the processor 900 and / or the controller 902 may be coupled with or to the memory 904, and the processor 900, the controller 902, and the memory 904 may be configured to perform various functions described herein. In some examples, the processor 900 may include multiple processors and the memory 904 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein.
[0180] The one or more ALUs 906 may be configured to support various operations in accordance with examples as described herein. In some implementation, the one or more ALUs 906 may reside within or on a processor chipset (e.g., the processor 900) . In some other implementations, the one or more ALUs 906 may reside external to the processor chipset (e.g., the processor 900) . One or more ALUs 906 may perform one or more computations such as addition, subtraction, multiplication, and division on data. For example, one or more ALUs 906 may receive input operands and an operation code, which determines an operation to be executed. One or more ALUs 906 be configured with a variety of logical and arithmetic circuits, including adders, subtractors, shifters, and logic gates, to process and manipulate the data according to the operation. Additionally, or alternatively, the one or more ALUs 906 may support logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 906 to handle conditional operations, comparisons, and bitwise operations.
[0181] The processor 900 may support wireless communication in accordance with examples as disclosed herein. In some embodiments where the processor 900 is implemented at a UE (e.g., the UE 104) , the processor 900 may be configured to operable to support a means for: in accordance with a determination that a first transmission of first data is to be performed while a second transmission of second data is ongoing, transmitting information of the first data to a network entity, wherein the first data is non-periodic and has a priority higher than a priority threshold; in accordance with a determination that first information indicating the first transmission is received from the network entity, performing the first transmission based on the first information; and in accordance with a determination that second information indicating the second transmission is received from the network entity, performing the second transmission based on the second information.
[0182] In some embodiments where the processor 900 is implemented at a network entity (e.g., the network entity 102) , the processor 900 may be configured to operable to support a means for: receiving information of first data from a UE while a second transmission of second data is ongoing, wherein the first data is non-periodic and has a priority higher than a priority threshold; transmitting, to the UE, first information indicating a first transmission of the first data; and transmitting, to the UE, second information indicating the second transmission of the second data.
[0183] FIG. 10 illustrates a flowchart of a method 1000 that supports low latency traffic in accordance with aspects of the present disclosure. The operations of the method 1000 may be implemented by a device or its components as described herein. For example, the operations of the method 1000 may be performed by a UE (e.g., STA) as described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
[0184] At block 1001, the method 1000 may include: in accordance with a determination that a first transmission of first data is to be performed while a second transmission of second data is ongoing, transmitting information of the first data to a network entity. The first data is non-periodic and has a priority higher than a priority threshold. The operations of 1001 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1001 may be performed by a device as described with reference to FIG. 1.
[0185] At block 1002, the method 1000 may include: in accordance with a determination that first information indicating the first transmission is received from the network entity via the transceiver, performing the first transmission based on the first information. The operations of 1002 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1002 may be performed by a device as described with reference to FIG. 1.
[0186] At block 1003, the method 1000 may include: in accordance with a determination that second information indicating the second transmission is received from the network entity via the transceiver, performing the second transmission based on the second information. The operations of 1003 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1003 may be performed by a device as described with reference to FIG. 1.
[0187] In some embodiments, the information of the first data may comprise at least one of the following: information of the priority of the first data, information of one or more requirements of the first data, information related to a transmission timing of the first data, or information of an urgent level of the first data.
[0188] In some embodiments, the UE may not have a R-TWT mechanism, and the priority of the first data may be higher than a priority of the second data. The first information may comprise at least one of the following: an indication of starting the first transmission, or a duration for the first transmission. The second information may comprise at least one of the following: an indication of completion of the first transmission, an indication of continuing the second transmission, or the duration for the first transmission.
[0189] In some embodiments, the UE may not have a R-TWT mechanism, and the second data may have a priority higher than the priority threshold. Transmitting the information of the first data may comprise: in accordance with a determination that remaining time of the second data is larger than a time threshold, transmitting the information of the first data to the network entity via the transceiver.
[0190] In some embodiments, the method 1000 may further comprise: in accordance with a determination that the remaining time of the second data is less than the time threshold, transmitting a request for the first transmission to the network entity via the transceiver after completion of the second transmission, the request comprising at least one of the following: information of one or more requirements of the first data, or information related to a transmission timing of the first data; and in accordance with a determination that a response to the request is received from the network entity via the transceiver, performing the first transmission based on the response.
[0191] In some embodiments, the UE may not have a R-TWT mechanism, and the second data has a priority higher than the priority threshold. Transmitting the information of the first data may comprise: in accordance with a determination that a size of the first data is larger than a size threshold, transmitting the information of the first data to the network entity via the transceiver.
[0192] In some embodiments, the method 1000 may further comprise: in accordance with a determination that the size of the first data is less than the size threshold, performing the first transmission via one or more remaining channels for the second transmission.
[0193] In some embodiments, the UE may be a member of a R-TWT mechanism, and the priority of the first data may be higher than a priority of the second data. The first information may comprise a trigger frame for the first transmission, and the second information may comprise timing information for the second transmission.
[0194] In some embodiments, the UE may be a member of a R-TWT mechanism, and the priority of the first data may be lower than a priority of the second data. The first information may comprise a timing information for the first transmission, and the second information may comprise a trigger frame for the second transmission.
[0195] In some embodiments, the timing information for the first or second transmission may comprise one of the following: a starting time point and a duration in a first R-TWT SP associated with the second transmission; one or more R-TWT SPs following the first R-TWT SP; a starting time point in the first R-TWT SP; or a starting time point in the one or more R-TWT SPs following the first R-TWT SP.
[0196] In some embodiments, the first R-TWT SP may be an adjusted R-TWT SP. In some embodiments, the method 1000 may further comprise: receiving information of the adjusted R-TWT SP from the network entity. The information of the adjusted R-TWT SP may comprise at least one of the following: a time window of the adjusted R-TWT SP; a time offset of the adjusted R-TWT SP with respect to a R-TWT SP before adjustment; or information of validation of the adjusted R-TWT SP. In some embodiments, the information of validation may indicate that the adjusted R-TWT SP is valid for the first R-TWT SP or the one or more R-TWT SPs following the first R-TWT SP.
[0197] In some embodiments, the timing information for the second transmission may comprise one of the following: a starting time point of the second transmission; a starting time point and a duration of the second transmission; or a starting time point and an ending time point of the second transmission.
[0198] In some embodiments, the timing information for the first transmission may comprise one of the following: a starting time point of the first transmission; a starting time point and a duration of the first transmission; or a starting time point and an ending time point of the first transmission.
[0199] In some embodiments, the UE may be a member of a R-TWT mechanism, and the first information may comprise an indication of occupying a channel used for a third transmission of third data, the third data having a priority lower than the priority threshold.
[0200] In some embodiments, the UE may have a R-TWT mechanism and may be not a member of the R-TWT mechanism, and the second data has a priority lower than the priority threshold.
[0201] In some embodiments, the first information may comprise a trigger frame for the first transmission, and the second information may comprise timing information for the second transmission. The timing information may comprise one of the following: a value for a backoff timer of the second transmission; a starting time point and a duration of the backoff timer; a starting time point and an ending time point of the backoff timer; or one or more R-TWT wake intervals.
[0202] In some embodiments, the method 1000 may further comprise: transmitting, to the network entity, a request for leaving the R-TWT mechanism; receiving, from the network entity and as the first information, information indicating that the UE is allowed to leave the R-TWT mechanism; and determining a channel for the first transmission.
[0203] In some embodiments, determining the channel may comprise: occupying the channel via contention resolution; or receiving an indication of the channel from the network entity.
[0204] FIG. 11 illustrates a flowchart of another method 1100 that supports low latency traffic in accordance with aspects of the present disclosure. The operations of the method 1100 may be implemented by a device or its components as described herein. For example, the operations of the method 1100 may be performed by a network entity (e.g., AP) described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
[0205] At block 1101, the method 1100 may include receiving, at a network entity, information of first data from a UE while a second transmission of second data is ongoing. The first data is non-periodic and has a priority higher than a priority threshold. The operations of 1101 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1101 may be performed by a device as described with reference to FIG. 1.
[0206] At block 1102, the method 1100 may include transmitting, to the UE, first information indicating a first transmission of the first data. The operations of 1102 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1102 may be performed by a device as described with reference to FIG. 1.
[0207] At block 1103, the method 1100 may include transmitting, to the UE, second information indicating the second transmission of the second data. The operations of 1103 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1103 may be performed by a device as described with reference to FIG. 1.
[0208] In some embodiments, the information of the first data may comprise at least one of the following: information of the priority of the first data, information of one or more requirements of the first data, information related to a transmission timing of the first data, or information of an urgent level of the first data.
[0209] In some embodiments, the UE may not have a R-TWT mechanism. Transmitting the first information may comprise: in accordance with a determination that the priority of the first data is higher than a priority of the second data, transmitting the first information that comprises at least one of the following: an indication of starting the first transmission, or a duration for the first transmission. Transmitting the second information may comprise: in accordance with a determination that the first transmission is completed, transmitting the second information that comprises at least one of the following: an indication of completion of the first transmission, an indication of continuing the second transmission, or the duration for the first transmission.
[0210] In some embodiments, the UE may not have a R-TWT mechanism, the second data may have a priority higher than the priority threshold, and remaining time of the second data may be larger than a time threshold.
[0211] In some embodiments, the UE may not have a R-TWT mechanism, the second data may have a priority higher than the priority threshold, and remaining time of the second data may be less than a time threshold. In some embodiments, the method 1100 may further comprise: receiving a request for the first transmission from the UE, wherein the request comprises at least one of the following: information of one or more requirements of the first data, or information related to a transmission timing of the first data; and transmitting a response to the request to the UE, wherein the response comprises an indication of starting the first transmission.
[0212] In some embodiments, the UE may not have a R-TWT mechanism, the second data may have a priority higher than the priority threshold, and a size of the first data may be larger than a size threshold.
[0213] In some embodiments, the UE may not have a R-TWT mechanism, the second data may have a priority higher than the priority threshold, the size of the first data may be less than the size threshold, and the first transmission may be performed via one or more remaining channels for the second transmission.
[0214] In some embodiments, the UE may be a member of a R-TWT mechanism. Transmitting the first information may comprise: in accordance with a determination that the priority of the first data is higher than a priority of the second data, transmitting the first information that comprises a trigger frame for the first transmission. Transmitting the second information may comprise: in accordance with a determination that the priority of the first data is higher than the priority of the second data, transmitting the second information that comprises timing information for the second transmission.
[0215] In some embodiments, the UE may be a member of a R-TWT mechanism. Transmitting the first information may comprise: in accordance with a determination that the priority of the first data is lower than a priority of the second data, transmitting the second information that comprises a trigger frame for the second transmission. Transmitting the second information may comprise: in accordance with a determination that the priority of the first data is lower than the priority of the second data, transmitting the first information that comprises timing information for the first transmission.
[0216] In some embodiments, the timing information for the first or second tranmsission may comprise one of the following: a starting time point and a duration in a first R-TWT SP associated with the second transmission; one or more R-TWT SPs following the first R-TWT SP; a starting time point in the first R-TWT SP; or a starting time point in the one or more R-TWT SPs following the first R-TWT SP.
[0217] In some embodiments, the first R-TWT SP may be an adjusted R-TWT SP. In some embodiments, the method 1100 may further comprise: transmitting information of the adjusted R-TWT SP comprising at least one of the following: a time window of the adjusted R-TWT SP; a time offset of the adjusted R-TWT SP with respect to a R-TWT SP before adjustment; or information of validation of the adjusted R-TWT SP indicating that the adjusted R-TWT SP is valid for the first R-TWT SP or the one or more R-TWT SPs following the first R-TWT SP.
[0218] In some embodiments, the timing information for the second transmission may comprise one of the following: a starting time point of the second transmission; a starting time point and a duration of the second transmission; or a starting time point and an ending time point of the second transmission.
[0219] In some embodiments, the timing information for the first transmission may comprise one of the following: a starting time point of the first transmission; a starting time point and a duration of the first transmission; or a starting time point and an ending time point of the first transmission.
[0220] In some embodiments, the method 1100 may further comprise: transmitting timing information for a third transmission of third data to a further UE performing the third transmission, wherein the third data has a priority lower than the priority threshold, and the timing information comprises one of the following: a value for a backoff timer of the third transmission; a starting time point and a duration of the backoff timer; or a starting time point and an ending time point of the backoff timer.
[0221] In some embodiments, the UE may be a member of a R-TWT mechanism. Transmitting the first information may comprise: in accordance with a determination that the information of the first data is received, waking up UEs to monitor a beacon frame during a time window; and transmitting, via the beacon frame, the first information that comprises an indication of occupying a channel used for a third transmission of third data, wherein the third data has a priority lower than the priority threshold.
[0222] In some embodiments, the method 1100 may further comprise: transmitting, to a further UE performing the third transmission of the third data, information indicating a failure of the third transmission, the information comprising at least one of the following: a channel occupying occurs; the channel occupying is performed by the UE; a starting time point of the channel occupying; a duration of the channel occupying; or an ending time point of the channel occupying.
[0223] In some embodiments, the UE may have a R-TWT mechanism and may be not a member of the R-TWT mechanism, and the second data may have a priority lower than the priority threshold.
[0224] In some embodiments, the first information may comprise a trigger frame for the first transmission, and the second information may comprise timing information for the second transmission. The timing information may comprise one of the following: a value for a backoff timer of the second transmission; a starting time point and a duration of the backoff timer; a starting time point and an ending time point of the backoff timer; or one or more R-TWT wake intervals.
[0225] In some embodiments, the method 1100 may further comprise: receiving, from the UE, a request for leaving the R-TWT mechanism; and transmitting, to the UE and as the first information, information indicating that the UE is allowed to leave the R-TWT mechanism.
[0226] In some embodiments, the method 1100 may further comprise: transmitting, to the UE, an indication of a channel available for the first transmission.
[0227] It is to be understood that operations of the methods 1000 and 1100 correspond to the processes described in connection with FIGs. 3A to 7, and thus other details are omitted here for conciseness.
[0228] It should be noted that the methods described herein describes possible implementations, and that the operations and the steps may be rearranged or otherwise modified and that other implementations are possible. Further, aspects from two or more of the methods may be combined.
[0229] The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed with a general-purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
[0230] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
[0231] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer. By way of example, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
[0232] As used herein, including in the claims, an article “a” before an element is unrestricted and understood to refer to “at least one” of those elements or “one or more” of those elements. The terms “a, ” “at least one, ” “one or more, ” and “at least one of one or more” may be interchangeable. As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of” or “one or more of” or “one or both of” ) indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) . Also, as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on. Further, as used herein, including in the claims, a “set” may include one or more elements.
[0233] The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1.A user equipment (UE) , comprising:a processor; anda transceiver coupled to the processor,wherein the processor is configured to:in accordance with a determination that a first transmission of first data is to be performed while a second transmission of second data is ongoing, transmit information of the first data to a network entity via the transceiver, wherein the first data is non-periodic and has a priority higher than a priority threshold;in accordance with a determination that first information indicating the first transmission is received from the network entity via the transceiver, perform the first transmission based on the first information; andin accordance with a determination that second information indicating the second transmission is received from the network entity via the transceiver, perform the second transmission based on the second information.2.The UE of claim 1, wherein the information of the first data comprises at least one of the following:information of the priority of the first data,information of one or more requirements of the first data,information related to a transmission timing of the first data, orinformation of an urgent level of the first data.3.The UE of claim 1, wherein the UE does not have a restricted target wake time (R-TWT) mechanism, and the priority of the first data is higher than a priority of the second data,wherein the first information comprises at least one of the following: an indication of starting the first transmission, or a duration for the first transmission, andwherein the second information comprises at least one of the following: an indication of completion of the first transmission, an indication of continuing the second transmission, or the duration for the first transmission.4.The UE of claim 1, wherein the UE does not have a restricted target wake time (R-TWT) mechanism, and the second data has a priority higher than the priority threshold,wherein the processor is configured to transmit the information of the first data by: in accordance with a determination that remaining time of the second data is larger than a time threshold, transmitting the information of the first data to the network entity via the transceiver, andwherein the processor is further configured to:in accordance with a determination that the remaining time of the second data is less than the time threshold, transmit a request for the first transmission to the network entity via the transceiver after completion of the second transmission, the request comprising at least one of the following: information of one or more requirements of the first data, or information related to a transmission timing of the first data, andin accordance with a determination that a response to the request is received from the network entity via the transceiver, perform the first transmission based on the response.5.The UE of claim 1, wherein the UE does not have a restricted target wake time (R-TWT) mechanism, and the second data has a priority higher than the priority threshold,wherein the processor is configured to transmit the information of the first data by: in accordance with a determination that a size of the first data is larger than a size threshold, transmitting the information of the first data to the network entity via the transceiver, andwherein the processor is further configured to: in accordance with a determination that the size of the first data is less than the size threshold, perform the first transmission via one or more remaining channels for the second transmission.6.The UE of claim 1, wherein the UE is a member of a restricted target wake time (R-TWT) mechanism, andwherein the first information comprises an indication of occupying a channel used for a third transmission of third data, the third data having a priority lower than the priority threshold.7.The UE of claim 1, wherein the UE has a restricted target wake time (R-TWT) mechanism and is not a member of the R-TWT mechanism, and the second data has a priority lower than the priority threshold, andwherein the first information comprises a trigger frame for the first transmission, and the second information comprises timing information for the second transmission, the timing information comprising one of the following:a value for a backoff timer of the second transmission,a starting time point and a duration of the backoff timer,a starting time point and an ending time point of the backoff timer, orone or more R-TWT wake intervals.8.The UE of claim 7, wherein the processor is further configured to:transmit, to the network entity, a request for leaving the R-TWT mechanism;receive, from the network entity and as the first information, information indicating that the UE is allowed to leave the R-TWT mechanism; anddetermine a channel for the first transmission by occupying the channel via contention resolution or receiving an indication of the channel from the network entity.9.A network entity, comprising:a processor; anda transceiver coupled to the processor,wherein the processor is configured to:receive information of first data from a user equipment (UE) via the transceiver while a second transmission of second data is ongoing, wherein the first data is non-periodic and has a priority higher than a priority threshold;transmit, to the UE via the transceiver, first information indicating a first transmission of the first data; andtransmit, to the UE via the transceiver, second information indicating the second transmission of the second data.10.The network entity of claim 9, wherein the UE is a member of a restricted target wake time (R-TWT) mechanism,wherein the processor is configured to transmit the first information by: in accordance with a determination that the priority of the first data is higher than a priority of the second data, transmitting the first information that comprises a trigger frame for the first transmission,wherein the processor is configured to transmit the second information by: in accordance with a determination that the priority of the first data is higher than the priority of the second data, transmitting the second information that comprises timing information for the second transmission, andwherein the timing information for the second transmission comprises one of the following: a starting time point of the second transmission, a starting time point and a duration of the second transmission; or a starting time point and an ending time point of the second transmission.11.The network entity of claim 9, wherein the UE is a member of a restricted target wake time (R-TWT) mechanism,wherein the processor is configured to transmit the first information by: in accordance with a determination that the priority of the first data is lower than a priority of the second data, transmitting the second information that comprises a trigger frame for the second transmission,wherein the processor is configured to transmit the second information by: in accordance with a determination that the priority of the first data is lower than the priority of the second data, transmitting the first information that comprises timing information for the first transmission, andwherein the timing information for the first transmission comprises one of the following: a starting time point of the first transmission, a starting time point and a duration of the first transmission, or a starting time point and an ending time point of the first transmission.12.The network entity of claim 10 or 11, wherein the timing information comprises one of the following:a starting time point and a duration in a first R-TWT service period (SP) associated with the second transmission;one or more R-TWT SPs following the first R-TWT SP;a starting time point in the first R-TWT SP; ora starting time point in the one or more R-TWT SPs following the first R-TWT SP.13.The network entity of claim 12, wherein the first R-TWT SP is an adjusted R-TWT SP, and wherein the processor is further configured to:transmit information of the adjusted R-TWT SP comprising at least one of the following:a time window of the adjusted R-TWT SP;a time offset of the adjusted R-TWT SP with respect to a R-TWT SP before adjustment; orinformation of validation of the adjusted R-TWT SP indicating that the adjusted R-TWT SP is valid for the first R-TWT SP or the one or more R-TWT SPs following the first R-TWT SP.14.The network entity of claim 10 or 11, wherein the processor is further configured to:transmit timing information for a third transmission of third data to a further UE performing the third transmission, wherein the third data has a priority lower than the priority threshold, and the timing information for the third transmission comprises one of the following:a value for a backoff timer of the third transmission;a starting time point and a duration of the backoff timer; ora starting time point and an ending time point of the backoff timer.15.The network entity of claim 9, wherein the UE is a member of a restricted target wake time (R-TWT) mechanism and wherein the processor is configured to transmit the first information by:in accordance with a determination that the information of the first data is received, waking up UEs to monitor a beacon frame during a time window; andtransmitting, via the beacon frame, the first information that comprises an indication of occupying a channel used for a third transmission of third data, wherein the third data has a priority lower than the priority threshold.16.The network entity of claim 15, wherein the processor is further configured to:transmit, to a further UE performing the third transmission of the third data, information indicating a failure of the third transmission, the information comprising at least one of the following:a channel occupying occurs;the channel occupying is performed by the UE;a starting time point of the channel occupying;a duration of the channel occupying; oran ending time point of the channel occupying.17.The network entity of claim 9, wherein the UE has a restricted target wake time (R-TWT) mechanism and is not a member of the R-TWT mechanism, and the second data has a priority lower than the priority threshold.18.The network entity of claim 17, wherein the processor is further configured to:receive, from the UE, a request for leaving the R-TWT mechanism;transmit, to the UE and as the first information, information indicating that the UE is allowed to leave the R-TWT mechanism; andtransmit, to the UE, an indication of a channel available for the first transmission.19.A processor for wireless communication, comprising:at least one memory; anda controller coupled with the at least one memory and configured to cause the processor to:in accordance with a determination that a first transmission of first data is to be performed while a second transmission of second data is ongoing, transmit information of the first data to a network entity, wherein the first data is non-periodic and has a priority higher than a priority threshold;in accordance with a determination that first information indicating the first transmission is received from the network entity, perform the first transmission based on the first information; andin accordance with a determination that second information indicating the second transmission is received from the network entity, perform the second transmission based on the second information.20.A method for wireless communication, comprising:in accordance with a determination that a first transmission of first data is to be performed while a second transmission of second data is ongoing, transmitting, at a user equipment (UE) , information of the first data to a network entity, wherein the first data is non-periodic and has a priority higher than a priority threshold;in accordance with a determination that first information indicating the first transmission is received from the network entity, performing the first transmission based on the first information; andin accordance with a determination that second information indicating the second transmission is received from the network entity, performing the second transmission based on the second information.
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