Data transmission in multiple-modality XR service
By allowing the terminal device to request additional resources when the initial allocation is insufficient, the method addresses inefficiencies in haptic and sensing traffic transmission, ensuring timely and efficient data transfer in multiple-modality XR services.
Patent Information
- Application Number
- PCT/CN2024/109973
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2026-02-12
AI Technical Summary
Existing data transmission mechanisms for haptic and sensing traffic in multiple-modality XR services are inefficient due to unpredictable burst sizes and irregular periodicity, leading to increased latency and decreased network capacity, particularly affecting video and audio transmission.
A terminal device determines the amount of data to be transmitted and, if the initially configured resource is insufficient, it transmits a first part of the data using that resource along with an indication requesting a second resource, allowing the network device to allocate additional resources in a timely manner.
This approach reduces transmission delay and ensures efficient data transmission while meeting low latency requirements by dynamically adjusting resource allocation based on real-time data needs.
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Figure CN2024109973_12022026_PF_FP_ABST
Abstract
Description
DATA TRANSMISSION IN MULTIPLE-MODALITY XR SERVICEFIELD
[0001] Example embodiments of the present disclosure generally relate to the field of communications and in particular, to a terminal device, a network device, methods, apparatuses, a computer readable storage medium and a computer program product for data transmission in a multiple-modality extended reality (XR) service.BACKGROUND
[0002] Mobile metaverse services are currently discussed, and the specific services include XR enabled collaborative and concurrent engineering, to enable local and remote collaboration. The study on mobile metaverse services considers a number of use cases that feature new service enables, including enhancements to IP Multimedia Subsystem (IMS) to support multiple users and multi-modal XR communication.
[0003] Data transmission in multi-modal XR communication is normally based on a scheduled resource, details of which should be further studied.SUMMARY
[0004] In general, example embodiments of the present disclosure provide a solution for data transmission of a haptic / sensing traffic in a multiple-modality XR service.
[0005] In a first aspect, there is provided a terminal device. The terminal device comprises: at least one processor; and at least one memory storing instructions, wherein the instructions when executed by the at least one processor, cause the terminal device at least to: receive, from a network device, configured grant (CG) configuration information indicating a first resource; determine an amount of data to be transmitted; and based on determining that the first resource is not enough for a transmission of determined data, transmit, to the network device, a first part of the determined data using the first resource and an indication along with the first part of the determined data, wherein the indication indicates that a second resource is required for a transmission of a second part of the determined data.
[0006] In a second aspect, there is provided a network device. The network device comprises: at least one processor; and at least one memory storing instructions, wherein the instructions when executed by the at least one processor, cause the network device at least to: transmit, to a terminal device, CG configuration information indicating a first resource; and receive, from the terminal device, a first part of data using the first resource and an indication along with the first part of the data, wherein the indication indicates that a second resource is required for a transmission of a second part of the data.
[0007] In a third aspect, there is provided a method. The method comprises: receiving, at a terminal device from a network device, CG configuration information indicating a first resource; determining an amount of data to be transmitted; and based on determining that the first resource is not enough for a transmission of determined data, transmitting, to the network device, a first part of the determined data using the first resource and an indication along with the first part of the determined data, wherein the indication indicates that a second resource is required for a transmission of a second part of the determined data.
[0008] In a fourth aspect, there is provided a method. The method comprises: transmitting, by a network device to a terminal device, CG configuration information indicating a first resource; and receiving, from the terminal device, a first part of data using the first resource and an indication along with the first part of the data, wherein the indication indicates that a second resource is required for a transmission of a second part of the data.
[0009] In a fifth aspect, there is provided an apparatus. The apparatus comprises: means for receiving, at a terminal device from a network device, CG configuration information indicating a first resource; means for determining an amount of data to be transmitted; and means for based on determining that the first resource is not enough for a transmission of determined data, transmitting, to the network device, a first part of the determined data using the first resource and an indication along with the first part of the determined data, wherein the indication indicates that a second resource is required for a transmission of a second part of the determined data.
[0010] In a sixth aspect, there is provided an apparatus. The apparatus comprises: means for transmitting, by a network device to a terminal device, CG configuration information indicating a first resource; and means for receiving, from the terminal device, a first part of data using the first resource and an indication along with the first part of the data, wherein the indication indicates that a second resource is required for a transmission of a second part of the data.
[0011] In a seventh aspect, there is an apparatus. The apparatus comprises: receiving circuitry configured to receive, from a network device, CG configuration information indicating a first resource; determining circuitry configured to determine an amount of data to be transmitted; and transmitting circuitry configured to based on determining that the first resource is not enough for a transmission of determined data, transmit, to the network device, a first part of the determined data using the first resource and an indication along with the first part of the determined data, wherein the indication indicates that a second resource is required for a transmission of a second part of the determined data.
[0012] In an eighth aspect, there is an apparatus. The apparatus comprises: transmitting circuitry configured to transmit, to a terminal device, CG configuration information indicating a first resource; and receiving circuitry configured to receive, from the terminal device, a first part of data using the first resource and an indication along with the first part of the data, wherein the indication indicates that a second resource is required for a transmission of a second part of the data.
[0013] In a ninth aspect, there is provided a non-transitory computer readable medium comprising program instructions for causing an apparatus to perform at least the method in a third or fourth aspect.
[0014] In a tenth aspect, there is provided a computer program comprising instructions, which, when executed by an apparatus, cause the apparatus at least the method in a third or fourth aspect.
[0015] It is to be understood that the summary section is not intended to identify key or essential features of embodiments of the present disclosure, nor is it intended to be used to limit the scope of the present disclosure. Other features of the present disclosure will become easily comprehensible through the following description.BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Some example embodiments will now be described with reference to the accompanying drawings, in which:
[0017] FIG. 1A illustrates an example of a multi-modal interactive system;
[0018] FIG. 1B illustrates an example of a comparison of a video stream and a haptic stream;
[0019] FIG. 1C illustrates an example communication system in which embodiments of the present disclosure may be implemented;
[0020] FIG. 1D illustrates an example schematic of a distribution of data rate of a haptic or sensing traffic in a multi-modality XR service;
[0021] FIG. 2 illustrates an example of a procedure for data transmission in accordance with some example embodiments of the present disclosure;
[0022] FIG. 3A illustrates an example of procedure for data transmission with delay in accordance with some example embodiments of the present disclosure;
[0023] FIG. 3B illustrates another example of procedure for data transmission with delay in accordance with some example embodiments of the present disclosure;
[0024] FIG. 4 illustrates a flowchart of a method implemented at a terminal device in accordance with some example embodiments of the present disclosure;
[0025] FIG. 5 illustrates a flowchart of a method implemented at a network device in accordance with some example embodiments of the present disclosure;
[0026] FIG. 6 illustrates a simplified block diagram of a device that is suitable for implementing some example embodiments of the present disclosure; and
[0027] FIG. 7 illustrates a block diagram of an example of a computer readable medium in accordance with some example embodiments of the present disclosure.
[0028] Throughout the drawings, the same or similar reference numerals represent the same or similar elements, unless otherwise indicated.DETAILED DESCRIPTION
[0029] Principles of the present disclosure will now be described with reference to some example 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.
[0030] 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.
[0031] References in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment 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 are not necessarily referring to the same embodiment. 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.
[0032] It shall be understood that although the terms “first” and “second” etc. 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. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.
[0033] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a” , “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” , “comprising” , “has” , “having” , “includes” and / or “including” , when used herein, specify the presence of stated features, elements, and / or components etc., but do not preclude the presence or addition of one or more other features, elements, components and / or combinations thereof. As used herein, “at least one of the following: <a list of two or more elements>” and “at least one of <a list of two or more elements>” and similar wording, where the list of two or more elements are joined by “and” or “or” , mean at least any one of the elements, or at least any two or more of the elements, or at least all the elements.
[0034] As used in this application, the term “circuitry” may refer to one or more or all of the following:
[0035] (a) hardware-only circuit implementations (such as implementations in only analog and / or digital circuitry) ;
[0036] (b) combinations of hardware circuits and software, such as (as applicable) :
[0037] (i) a combination of analog and / or digital hardware circuit (s) with software / firmware, and
[0038] (ii) any portions of hardware processor (s) with software (including digital signal processor (s) ) , software, and memory (ies) that work together to cause an apparatus, such as a mobile phone or server, to perform various functions; and
[0039] (c) hardware circuit (s) and / or processor (s) , such as a microprocessor (s) or a portion of a microprocessor (s) , that requires software (e.g., firmware) for operation, but the software may not be present when it is not needed for operation.
[0040] This definition of circuitry applies to all uses of this term in this application, including in any claims. As a further example, as used in this application, the term circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and / or firmware. The term circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.
[0041] As used herein, the term “communication network” refers to a network following any suitable communication standards, such as Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , New Radio (NR) , Wideband Code Division Multiple Access (WCDMA) , High-Speed Packet Access (HSPA) , Narrow Band Internet of Things (NB-IoT) , Non-terrestrial network (NTN) , IoT over NTN, Wi-Fi and so on. Furthermore, the communications in the communication network may be performed according to any suitable generation communication protocols, including, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) , the sixth generation (6G) communication protocols, IEEE 802.11 protocols and / or any other protocols either currently known or to be developed in the future. Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will of course also be future type communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned system.
[0042] As used herein, the term “network device” refers to a node in a communication network via which a terminal device accesses the network and receives services therefrom. The network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a new radio (NR) NB (also referred to as a gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , a remote radio head (RRH) , an integrated access and backhaul (IAB) node, a relay, a low power node such as a femto, a pico, and so forth, depending on the applied terminology and technology.
[0043] The term “terminal device” refers to any end device that may be capable of wireless communication. By way of example rather than limitation, a terminal device may also be referred to as a communication device, user equipment (UE) , a Subscriber Station (SS) , a Portable Subscriber Station, a Mobile Station (MS) , an Access Terminal (AT) , or an internet of things (IoT) device. The terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA) , portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , USB dongles, smart devices, wireless customer-premises equipment (CPE) , an Internet of Things (loT) device, a machine type communication (MTC) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications (e.g., remote surgery) , an industrial device and applications (e.g., a robot and / or other wireless devices operating in an industrial and / or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and / or industrial wireless networks, and the like. In the following description, the terms “terminal device” , “communication device” , “terminal” , “user equipment” and “UE” may be used interchangeably.
[0044] In the present disclosure, a term multi-modal may be interchangeably used with multi-modality, the multi-modal XR communication, as mentioned above, may also be referred to as a multi-modality XR communication or a multi-modality XR service, etc.
[0045] Tactile and multi-modal communication services enable multiple modal interactions, combining ultra-low latency with extremely high availability, reliability and security. Tactile Internet can be applied in multiple fields, including: industry, robotics and telepresence, virtual reality, augmented reality, healthcare, road traffic, serious gaming, education and culture, smart grid, etc. Multiple modalities can be used in combination in a service to provide complementary methods that may convey redundant information but can convey information more effectively. With the benefit of combining input from more than one source and / or output to more than one destination, interpretation in communication services will be more accurate and faster, response can also be quicker, and the communication service will be smoother and more natural.
[0046] For a typical tactile and multi-modal communication service / application, there can be different modalities affecting the user experience, e.g.:
[0047] - Video / Audio media;
[0048] - Information perceived by sensors about the environment, e.g. brightness, temperature, humidity, etc.;
[0049] - Haptic data: can be feelings when touching a surface (e.g., pressure, texture, vibration, temperature) , or kinaesthetic senses (e.g. gravity, pull forces, sense of position awareness) .
[0050] FIG. 1A illustrates an example of a multi-modal interactive system 101. As illustrated, multi-modal outputs are generated based on the inputs from multiple sources. In the multi-modal interactive system, modality is a type or representation of information in a specific interactive system. Multi-modal interaction is the process during which information of multiple modalities are exchanged. Modal types consist of motion, sentiment, gesture, etc. Modal representations consist of video, audio, tactition (vibrations or other movements which provide haptic or tactile feelings to a person) , etc.
[0051] In the third Generation Partnership Project (3GPP) , Technical Specification Group (TSG) Service and System Aspects (SA) work group 1 (WG1) studied on Tactile and Multi-modal service in Release 18 regarding the use cases and requirement. SA2 started the XR and media (XRM) work item to identify the fifth generation system (5GS) functionality and capability enhancements, including multi-modality transmission. SA2 discussed various solutions for policy control enhancements to support coordinated transmission of Multi-Modality Flows (MMFs) for XR and tactile services from a single or multiple UE (s) , and to support interaction between 5GS and applications, quality of service (QoS) and policy enhancement.
[0052] Multiple modalities can be transmitted at the same time to multiple application servers for further processing in a coordinated manner, in terms of QoS coordination, traffic synchronization, power saving, etc.
[0053] In the present disclosure, a haptic or sensing traffic is identified, such as a haptic / sensing stream, which is aperiodical / periodical arrived and time sensitive. The arrival of haptic packets and the arrival of video packets are asynchronous, and the density of haptic packets is much higher than that of video packets. FIG. 1B illustrates an example of a comparison 102 of a video stream and a haptic stream. As illustrated, an example of packets in a video stream is shown at 103, an example of packets in a haptic stream, e.g., with a single sensor, is shown at 104, and an example of packets in a haptic stream, e.g., with massive sensors, is shown at 105.
[0054] The devices may send the haptic data and the sensing data with different periodic time. As an example, the device may send one packet containing haptic information to the application server every 2ms, and send the packets related to sensing information to the application server every 4ms.
[0055] The amount of haptic packets that are generated and transferred within one second may be 1K -4K packets (without haptic compression encoding) , or 100-500 packets (with haptic compression encoding) .
[0056] It is defined that the fifth generation system (5GS) shall support tactile and multi-modal communication services with the following key performance indictors (KPI) .
[0057] Table 1. Multi-modal communication service performance requirements
[0058] The problem of the transmission of haptic data has been discussed, e.g., some viewpoints have been proposed, but details of which should be further studied.
[0059] - Legacy Dynamic Grant / Configured Grant (DG / CG) may be not efficient for the transmission of haptic data which have stringent Packet Delay Budget (PDB) , unpredictable burst size and irregular periodicity.
[0060] - The transmission of haptic data may impact the transmission of video and audio, and decrease the resource efficiency.
[0061] - Under the existing scheduling mechanism, the network capacity may be decreased if there is haptic traffic.
[0062] As discussed, the haptic and sensing data requires a support of low latency and high communications service reliability, in this event, how to perform the data transmission with a low latency should be addressed.
[0063] Embodiments of the present disclosure provide a solution for data transmission of a haptic / sensing traffic in a multiple-modality XR service. In the solution, a first resource may be configured to a terminal device. The terminal device may determine to transmit a first part of data using the first resource and an indication along with the first part of data if the first resource is not enough, where the indication may indicate that a second resource is required. As such, the network device can allocate the second resource based on the indication in time, in this event, the data transmission can be performed in time and accordingly the delay can be reduced. Therefore, a transmission requirement for the data transmission can be satisfied. Principles and implementations of the present disclosure will be described in detail below with reference to the figures.
[0064] FIG. 1C illustrates an example of a network environment 100 in which some example embodiments of the present disclosure may be implemented. The environment 100, which may be a part of a communication network, comprises a terminal device 110-1, a terminal device 110-2, a network device 120, and an application server 130. The network environment 100 may also be called as a network system, a communication environment, a communication network, a communication system, or the like, the present disclosure does not limit this aspect.
[0065] The terminal device 110-1 and the terminal device 110-2 can be separately or collectively referred to as a terminal device 110. It should be noted that although the terminal device 110-1 is illustrated as VR glasses and the terminal device 110-2 is illustrated as gloves, the device type of the terminal device 110 is not limited in the present disclosure.
[0066] In some examples, the devices 110 for immersive multi-modal VR application may include multiple types of devices such as VR glass type device, the gloves and other potential devices that support haptic and / or kinesthetic modal. These devices which are 5G UEs are connected to the immersive multi-modal VR application server 130 via the 5G network without any UE relays.
[0067] The environment 100 may comprise any suitable number of devices and cells. In the environment 100, the network device 120 can provide services to the terminal device 110, and the network device 120 and the terminal device 110 may communicate data and control information with each other. In some embodiments, the network device 120 and the terminal device 110 may communicate with direct links / channels. For example, the network device 120 may be a gNB, an NG-RAN node, etc.
[0068] In the environment 100, a link from the network device 120 to the terminal device 110 is referred to as a downlink (DL) , while a link from the terminal device 110 to the network device 120 is referred to as an uplink (UL) . In downlink, the network device 120 is a transmitting (TX) device (or a transmitter) and the terminal device 110 is a receiving (RX) device (or a receiver) . In uplink, the terminal device 110 is a transmitting TX device (or a transmitter) and the network device 120 is a RX device (or a receiver) . It is to be understood that the network device 120 may provide one or more serving cells. In some embodiments, the network device 120 can provide multiple cells.
[0069] Communications in the network environment 100 may be implemented according to any proper communication protocol (s) , comprising, but not limited to, cellular communication protocols of the first generation (1G) , the second generation (2G) , the third generation (3G) , the fourth generation (4G) , the fifth generation (1G) and the sixth generation (6G) and on the like, wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and / or any other protocols currently known or to be developed in the future. Moreover, the communication may utilize any proper wireless communication technology, comprising but not limited to: Code Division Multiple Access (CDMA) , Frequency Division Multiple Access (FDMA) , Time Division Multiple Access (TDMA) , Frequency Division Duplex (FDD) , Time Division Duplex (TDD) , Multiple-Input Multiple-Output (MIMO) , Orthogonal Frequency Division Multiple (OFDM) , Discrete Fourier Transform spread OFDM (DFT-s-OFDM) and / or any other technologies currently known or to be developed in the future.
[0070] It is to be understood that the numbers of devices (i.e., the terminal device 110 and the network device 120) and their connection relationships and types shown in FIG. 1C are only for the purpose of illustration without suggesting any limitation. For example, the environment 100 may include any suitable numbers of devices adapted for implementing embodiments of the present disclosure.
[0071] 5GS is capable of transporting the uplink / downlink service data. The VR / AR / MR / Cloud Gaming mobile devices, such as mobile headsets or other haptic mobile devices, could be connected to the cloud or edge server for supporting the mobile metaverse immersive game and live show via 5GS.
[0072] FIG. 1D illustrates an example schematic of a distribution 150 of data rate of a haptic or sensing traffic in a multi-modality XR service. As illustrated, the curve is a typical probability density function (PDF) of Pareto distribution.
[0073] As the data rate follows Pareto distribution, most packets are with a small or medium, e.g., small and medium-sized packets. For example, assuming the data rate is between 16 kbit / sand 2 Mbit / s, there is a 90%probability that the data rate will be less than 500 kbit / s, and a 10%probability that it will fall between 500 kbit / sand 2 Mbit / s.
[0074] In the case of a 4ms service interval (i.e., a cycle, a period, a burst, etc. ) , there is a 90%probability that the packet size in each burst is less than 2k bits, and a 10%probability that it falls between 2k bits and 8k bits, where 8k bits / 4ms = 2 Mbit / s. If buffer status report (BSR) and dynamic grant (DG) are used to configure the uplink resources, the latency will increase and access network PDU delay budget (AN-PDB) will be significantly greater than 5ms. If a configured grant of 8k bits (1000 bytes) per 4ms for a haptic / sensing stream is used, it results in a significant waste of uplink capacity. Accordingly, a more efficient scheme is needed.
[0075] Reference is now made to FIG. 2, which illustrates an example of a procedure 200 in accordance with some example embodiments of the present disclosure. The procedure 200 may involve the terminal device 110 and the network device 120 as shown in FIG. 1C. For ease of description, the procedure 200 is illustrated with reference to FIG. 1C, however, it would be appreciated that the procedure 200 may be applied to other communication scenarios, which will not be described in detail.
[0076] At 210, the network device 120 transmits, and the terminal device 110 receives, CG configuration information which indicates a first resource. In some examples, the first resource in the present disclosure may also be referred to as a first CG resource, an initial CG resource, etc.
[0077] In some examples, the first resource is configured for a haptic / sensing traffic in a multiple-modality XR service of the terminal device 110. In some examples, the first resource is configured for a transmission cycle of the haptic / sensing traffic. For example, the transmission cycle may be a period for data packets of the haptic / sensing traffic. For example, the transmission cycle may be several milliseconds.
[0078] In some examples, the network device 120 may determine the first resource based on a predefined percent of the maximum total packet size in a transmission cycle of the haptic / sensing traffic, i.e., a predefined percent of the maximum amount of data generated by a source of the haptic / sensing traffic within a cycle. For example, the maximum total packet size in a transmission cycle of the haptic / sensing traffic from the terminal device 110 may be determined, and the first resource may be further determined accordingly. For example, the predefined percent may be represented as α%, which may be 90%, 88%, or another value.
[0079] It should be appreciated that the network device 120 may configure at least one CG resource to each terminal device, where different terminal devices are configured with different CG resources. It should be appreciated that the network device 120 may configure the at least one CG resource for each transmission cycle.
[0080] At 220, the terminal device 110 determines an amount of data to be transmitted. In some examples, the data to be transmitted may include one data packet or multiple data packets, e.g., of a haptic / sensing traffic. For example, a size of the data to be transmitted can be determined as a size of arriving packets. For example, the amount of the data generated and required to be sent may be varied in different transmission cycles. Take an example mentioned above, in the case of 4ms service interval and the data rate is between 16 kbit / sand 2 Mbit / s, there is a 90%probability that the packet size in each burst is less than 2k bits, and a 10%probability that it falls between 2k bits and 8k bits, where 2k bits / 4ms = 500 kbit / s. Thus the network device 120 may configure 2k bits UL resource as the first resource for the terminal device 110 in each 4ms cycle. That is, the first resource can cover 90%probability of packets in each burst.
[0081] At 230, the terminal device 110 determines whether the first resource is enough for the transmission of the data to be transmitted. In some examples, a size of the first resource and the size of the data to be transmitted can be compared. In some examples, case 1 may be considered, if the first resource is enough, that is, the size of the first resource is not smaller (or larger) than the size of the data to be transmitted. In some examples, case 2 may be considered, if the first resource is not enough, that is, the size of the first resource is smaller than the size of the data to be transmitted.
[0082] In some examples, if an amount of data, e.g., of a haptic and / or sensing traffic, is ready for transmission at the terminal device 110, then the terminal device 110 checks whether the amount of data can be transmitted using the first resource; if so, the first resource is used and the amount of data is transmitted; otherwise, part of the amount of data is transmitted using the first resource and an indication is also provided for requesting an additional resource. In this way, a high amount of fast data transfer can be achieved in conjunction with a low amount of reserved resources, and advantageously still fulfilling the low latency requirements.
[0083] At 240, the terminal device 110 transmits, and the network device 120 receives, the determined data using the first resource. As the first resource is enough, the first resource may be used for a transmission of the determined data. In addition or alternatively, the terminal device 110 may transmit an indication, which indicates that the first resource is enough or no other resource is needed. In some examples, the indication may be included in a UCI in a CG occasion corresponding to the first resource. For example, the indication may include at least one bit which is set as “0” . In some examples, the indication is not transmitted, and the network device 120 may assume that the first resource is enough for the terminal device 110 in case no indication is received.
[0084] As the example mentioned above, the first resource can cover α% (e.g. 90%) probability of packets in each burst, thus there is an α%probability that the terminal device 110 may transmit the determined data at 240, without requesting additional resource. Since the first resource is configured to the terminal device 110, a transmission of the data may be made in time, and a delay of the transmission can be reduced, and transmission efficiency can be guaranteed.
[0085] At 250, the terminal device 110 transmits, and the network device 120 receives, a first part of the determined data and an indication using the first resource. The indication may indicate that a second resource is required for a transmission of a second part of the determined data. In some examples, the indication may indicate that the first resource is not enough. In some examples, a size of the first part of the determined data may equal to the size of the first resource.
[0086] In some embodiments, the indication may be included in a UCI in a CG occasion corresponding to the first resource, and the indication is transmitted along with the first part of the determined data. In some examples, the indication may indicate that an additional / extra uplink resource is required / needed. In some examples, the indication may include one or multiple bits. For example, a granularity of the required second resource may be associated with a number of the one or multiple bits, e.g., how many bits are available for the indication.
[0087] In some examples, the indication may indicate that there is the second part of the determined data to be transmitted, e.g., there is data remained in the buffer to be transmitted. For instance, the indication may include one bit which is set as “1” . In some examples, the indication may indicate a size of the required second resource. For instance, the indication may include one or multiple bits which can explicitly or implicitly indicate the size of the required second resource.
[0088] For example, the one or multiple bits may represent the size of the second resource required for a transmission of the second part of the determined data, e.g., a number of transport blocks (TBs) . For example, the one or multiple bits may represent a size relationship between the size of the second resource and a size of the first resource, e.g., a difference between the size of the second resource and a size of the first resource, or a ratio of the size of the second resource to the size of the first resource.
[0089] In some examples, the indication may include k bits in the UCI, where k is a positive integer. In some examples, a mapping relationship between a value of the one or more bits and the ratio is pre-configured or pre-defined. For example, k bits may be used to indicate that the size of the required second resource is x times (or 1 / x) of the size of the first resource, with x=n or x=2n.
[0090] In one example with k=3 and n is an integer within a range [-k, k] and x=2n, an example mapping relationship is shown in Table 2 below.
[0091] Table 2
[0092] As can be seen from Table 2, the range of the ratio is from 1 / 8 to 8, but the granularity is uneven.
[0093] In another example with k=3 and n is an integer within a range [-k, k] and x=n, an example mapping relationship is shown in Table 3 below.
[0094] Table 3
[0095] As can be seen from Table 3, the range of the ratio is from 1 / 3 to 3, but the granularity is even.
[0096] In another example with k=2, an example of mapping relationship is shown in Table 4 below.
[0097] Table 4
[0098] As can be seen from Table 4, the range of ratio (related to requested additional resources) is from 1 to 3. With the example mentioned above, in the case of 4ms service interval and the data rate is between 16 kbit / sand 2 Mbit / s, there is a 90%probability that the packet size in each burst is less than 2k bits, and a 10%probability that it falls between 2k bits and 8k bits, where 2k bits / 4ms = 500 kbit / s. Thus, the network device 120 may configure 2k bits UL resource as the first resource for the terminal device 110 in each 4ms cycle. That is, the first resource can cover 90%probability of packets in each burst. For the rest of the cases with 10%probability of occurrence, the UE may request second resource (s) depending on the actual amount of data ready for UL transmission. The second resource may, in one example, also be configured to enable transmission of 2 kbits as the first resource. In this case the UE may use only 2 bits to encode information on amount of pending / buffered data to be transmitted. For example, if the amount of data to be transmitted within a cycle in total is represented by D, then
[0099] D<= 2 kbits, use only the first resource for UL data transmission,
[0100] D> 2 kbits, but D<= 4 kbits, use the first resource for 2 kbits, and request 1 second resource (with 2 kbits) for the transmission of the remaining bits, e.g. by encoding the UCI with the 2-bit indication being “01” as shown in Table 4,
[0101] D> 4 kbits, but D<= 6 kbits, use the first resource for 2 kbits, and request 2 second resources (with 2 kbits each) for the transmission of the remaining bits, e.g. by encoding the UCI with the 2-bit indication being “10” as shown in Table 4, or
[0102] D> 6 kbits, but D<= 8 kbits, use the first resource for 2 kbits, and request 3 second resources (with 2 kbits each) for the transmission of the remaining bits, e.g. by encoding the UCI with the 2-bit indication being “11” as shown in Table 4.
[0103] This way, 100%of the cases can be addressed using e.g. only two additional bits for requesting fitting second resource (s) . This reduces complexity and eases the allocation of resources, and reduces the waste of resources.
[0104] The case as the 2-bit indication being “00” as shown in Table 4 can be used for other purposes.
[0105] One such purpose could e.g. be to indicate, by the UE, to the network that no second resource are required, and thus that the data in the first resource is the only pending data. This might be redundant information for the network, as it, e.g., may not expect more data, but may be a further tool to increase reliability.
[0106] Another purpose could e.g. be to indicate, by the UE, to the network that no data is currently available for transmission, and / or that even the first resource is not used / unused, in this case it might be beneficial to transmit the UCI before the first resource, so that the first resource may be allocated to another UE or used for other purposes, e.g. control signals, or data, or paging response, etc.
[0107] Still another purpose could e.g. be to indicate, by the UE, to the network that another size of the first resource is required, e.g. 1 / 2 the size of the first resource, which would e.g. be applicable to a new category where an actual amount of data to be transmitted within a cycle is in total > 2 kbits, but <= 3 kbits, and thus requiring only adding half of a first resource for the transmission of the rest of the buffered data. In this case the second resource may be configured to enable transmission of 1 kbits. This could be beneficial to further reduce the allocation of wasted resources, e.g. if it is observed that this category is occurring more often.
[0108] Indeed, the monitoring of the (actual) data traffic, and / or statistics about related historic data traffic, like e.g. XR traffic or traffic related thereto like haptic and / or sensing data, and / or the category of a UE may determine a use of a specifically preconfigured encoding table for the UE for use of requesting additional (second) resources (e.g. using k=2 bits or k=3bits) , and / or may be used to configure a specific encoding table to be used for a specific UE or a group of UEs, e.g. UEs of the same type (e.g. supporting a certain release of a standard, e.g. Rel. 19 UEs) , and / or supporting specific applications and / or services like XR. The configured encoding table or information related thereto, e.g. to be used in UCI and / or for indicating a specific amount of additional resources required and / or for indicating a specific amount of (buffered) data ready for transmission, may be transmitted, e.g. by the gNB, to the UE before the transmission of the respective data starts.
[0109] Still another purpose could e.g. be to indicate, by the UE, to the network that the current request refers to data transmission with very low latency requirement of e.g. haptic and / or sensing packets transmission.
[0110] If at least 5 purposes should be supported, e.g. part or all of the above or even further purposes, a selection of e.g. k=3 can be used enabling encoding of up to 8 different purposes with 3 bits. If, e.g., 6 purposes should be supported with k = 3bits, two bit combinations, e.g. 000 and 001, can be reserved for future use.
[0111] It should be noted that examples above in Tables 2-4 are only for illustration without any limitation, some other examples are also applied, for example at least part of the examples of Tables 2 to 4 may also be combined with each other. In some other examples, a mapping relationship between the value of the multiple bits and the size of the second resource may be pre-configured or pre-defined. In some other examples, a mapping relationship between the value of the multiple bits and the difference between the size of the second resource and a size of the first resource may be pre-configured or pre-defined.
[0112] In some embodiments, an unused transmission occasion UCI (UTO-UCI) may be reused for the indication.
[0113] In some examples, the UTO-UCI may include a plurality of bits, where a specific bit (such as the first one) among the plurality of bits may indicate a usage of the UTO-UCI. For example, the specific bit may be a first value which indicates that the rest bits are associated with required resource. For example, the specific bit may be a second value which indicates that the rest bits are associated with unused resource. For instance, the first value and the second value may be 1 and 0 (or 0 and 1) respectively. For instance, the specific bit may be implemented as more than one bit in some cases. In some examples, the specific bit may be a first value, and partial or all of the rest bits may indicate a size of the required second resource.
[0114] In some other examples, the UTO-UCI may include a plurality of bits, where a first part of the plurality of bits (e.g., the front k bits) may be used as the indication above, and a second part of the plurality of bits (e.g., the rest bits) may be used for unused resource.
[0115] In some other examples, an RRC configuration may be transmitted from the network device 120 to the terminal device 110, and the RRC configuration may indicate a usage of the plurality of bits in the UTO-UCI. For example, the RRC configuration may indicate whether the UTO-UCI is used for required resource or is used for unused resource.
[0116] In some other embodiments, the indication may be included in another message, such as a BSR in a medium access control (MAC) control element (CE) . It should be noted that some other type of message may also be applied for the indication and the present disclosure does not limit for this aspect.
[0117] In addition or alternatively, the terminal device 110 may further transmit an emergency indication indicating a delay-criticality of the second part of the determined data. For example, the emergency indication may be transmitted together with the first part of the determined data and the indication above using the first resource. As such, the network device 120 may know that the data is delay critical. For example, the emergency indication may be transmitted on the accompanying uplink control channel, such as a physical uplink control channel (PUCCH) . In some examples, a required amount of resource for the delay-critical data may be based on the granted resource of the current transmission (e.g., a transmission for the first part of the data) , e.g., with a ratio of the size of the required resource to the size of the initial CG resource.
[0118] From the perspective of the network device 120, it may allocate the second resource based on the received indication. For example, the second resource may be a DG resource in the period. In some examples, if the indication does not indicate a size of the second resource, the network device 120 may allocate the second resource based on the maximum total packet size in a transmission cycle of the haptic / sensing traffic. Take an example mentioned above, in the case of 4ms service interval and the data rate is between 16 kbit / sand 2 Mbit / s, the second resource may be 6k bits. In some examples, if the indication indicates the size of the second resource, the network device 120 may allocate the second resource based on the indicated size.
[0119] At 260, the network device 120 transmits, and the terminal device 110 receives, a uplink grant configuration information indicating the allocated second resource. At 270, the terminal device 110 transmits, and the network device 120 receives, the second part of the determined data using the second resource. For example, the uplink grant configuration may be a DG configuration, and the indicated second resource may be a DG resource correspondingly.
[0120] Since the first resource can cover α% (e.g. 90%) probability of packets in each burst, thus there is a (1-α%) probability that the first resource is not enough and the terminal device 110 may need to require a second resource for a transmission of the second prat of the determined data. In the present disclosure, the indication is included in a CG-UCI, thus the network device 120 can obtain the indication more quickly, accordingly the second resource can be allocated in time.
[0121] FIG. 3A illustrates an example of procedure 300 for data transmission with delay in accordance with some example embodiments of the present disclosure. The procedure 300 may involve the terminal device 110 (such as a UE) and the network device 120 (such as a gNB) as shown in FIG. 1C.
[0122] It is assumed that a first CG resource with 2 kbits is allocated to the UE, and the arrived data has a size (e.g., 5 kbits) larger than the first CG resource.
[0123] At 301, the UE may transmit part of the data (2 kbits) through the CG resource and also transmits a BSR in MAC CE for requesting an additional 3 kbits resource. At 302, the gNB needs to perform PDU decoding and processing to determine that additional 3 kbits resource is requested. At 303, the gNB provides an uplink grant with 3 kbits in DCI. At 304, the UE can transmit the rest 3 kbits through the DG resource. As can be seen, the second transmission occasion for the rest bits (e.g., at 304) is some delay from the initial CG resource due to the PDU decoding and processing, as illustrated in FIG. 3A.
[0124] FIG. 3B illustrates an example of procedure 350 for data transmission with delay in accordance with some example embodiments of the present disclosure. The procedure 350 may involve the terminal device 110 (such as a UE) and the network device 120 (such as a gNB) as shown in FIG. 1C.
[0125] It is assumed that a first CG resource with 2 kbits is allocated to the UE, and the arrived data has a size (e.g., 5 kbits) larger than the first CG resource.
[0126] At 351, the UE may transmit prat of the data (2 kbits) through the first CG resource and also transmits an indication in a UCI for requesting a second resource with 3 kbits. For example, it denotes that the UCI including an indication for requesting the second resource is the CG-UCI in the present disclosure. At 352, the gNB transmits an uplink grant with 3 kbits in a DCI to the UE. The gNB may know that a second resource with 3 kbits is required based on the indication in the CG-UCI, and then allocates a DG resource for further transmission. At 353, the UE can transmit rest 3 kbits data through the DG resource.
[0127] Since the UCI decoding and processing at gNB would be more quickly, so that gNB could respond with the required resource (at 353) as quickly as possible, e.g., the DG configuration information may be sent / provided at a latest PDCCH occasion. As illustrated, the second transmission occasion for the rest bits (at 353) follows the first transmission occasion (at 351) closely, thus the delay can be reduced, thereby meeting requirements of both strict PDB and uplink resource utilization.
[0128] As discussed above, the first resource may be a CG resource and the second resource may be a DG resource. The first resource is allocated as an initial CG resource without allocating a second resource simultaneously and thus reduce waste of not needed resources. The first and the second resources may be time-frequency resources. The first and second resources may be with a same frequency or different frequencies.
[0129] The allocation of the second resource is performed advantageously to fulfil the very low latency and high service reliability requirements. Due to the use of the indication, e.g., in a UCI, the gNB allocates the second resource for a transmission of rest data. The second resource is advantageously allocated within the same cycle. In this way, the buffered data can be received within the same cycle, thus e.g. fulfilling the delay requirements, and the next cycle can be used to transmit new data.
[0130] The capacity, bandwidth, and / or other characteristics of the second resource may be determined by gNB to allow a transmission of the second part of the data. The second resource may be a dedicated resource, to increase the probability of receipt by the gNB. The second resource may be a dynamic resource to enable fast allocation and fast receipt by the gNB.
[0131] By using the second resource, the fast transmission of not received data of UE achieved, advantageously within the same cycle, thus enabling to still fulfil the delay requirements. In this way, a dynamically and fast adaptable resource allocation is achieved, in particular for data of the haptic and / or sensing traffic.
[0132] The gNB may be configured to observe in how many cases with indication occurs, and subsequently adapt the allocation of more or less first resources to the UE in order to optimize the allocation of the resources to the actual situation, e.g. higher amount of haptic and / or sensing data for a certain period of time, and / or for certain applications, and / or for certain types of UEs, etc. For example, a UE, which has constantly more data to be transmitted than fitting within the first resource and often or always requiring the second resource, may be allocated more first resources in order not to transmit an indication for requiring the second resource, and thus requiring less allocation of additional second resource.
[0133] Accordingly, a scheduling scheme for data with variable size of a haptic / sensing traffic in a multiple-modality XR service is proposed. In the present disclosure, an initial CG resource may be configured, and an indication may be provided when the initial CG resource is not sufficient for a transmission of data packets. Accordingly, a second resource may be allocated in time for a transmission of rest data. As such, a low latency and high service reliability requirement of data packets of haptic / sensing traffic can be supported. Therefore, the solution in the present disclosure is an effective UL scheduling scheme to guarantee a low latency requirement of the haptic and / or sensing packets transmission with a high dynamic vary data rate in multi-modality XR service, from both the haptic KPI and the network capacity perspective.
[0134] It is to be appreciated that although CGUCI is used for some embodiments of the present disclosure, any other names of the indication may also be used and the present disclosure does not limit for this aspect.
[0135] FIG. 4 illustrates a flowchart of a method 400 implemented at a terminal device in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 400 will be described from the perspective of a terminal device 110 in FIG. 1C.
[0136] At block 410, the terminal device 110 receives, from a network device, CG configuration information indicating a first resource. At block 420, the terminal device 110 determines an amount of data to be transmitted. At block 430, based on determining that the first resource is not enough for a transmission of determined data, the terminal device 110 transmits, to the network device, a first part of the determined data using the first resource and an indication along with the first part of the determined data, wherein the indication indicates that a second resource is required for a transmission of a second part of the determined data.
[0137] In some example embodiments, the terminal device 110 further receives, from the network device, uplink grant configuration information indicating the second resource based on the indication; and the terminal device 110 transmits, to the network device, the second part of the determined data using the second resource.
[0138] In some example embodiments, the indication is carried in a UCI in a CG occasion corresponding to the first resource.
[0139] In some example embodiments, the indication comprises one or multiple bits indicating at least one of: there is the second part of the determined data to be transmitted, a size of the second resource required for a transmission of the second part of the determined data, a difference between the size of the second resource and a size of the first resource, or a ratio of the size of the second resource to the size of the first resource.
[0140] In some example embodiments, a mapping relationship between a value of the one or more bits and the ratio is pre-configured or pre-defined.
[0141] In some example embodiments, the indication is implemented by a reuse of a UTO-UCI, where the UTO-UCI comprises a specific bit with a first value for indicating a desired resource or with a second value for indicating an unused resource.
[0142] In some example embodiments, the determined data comprises a data packet or more than one data packet of a haptic or sensing traffic in a multiple-modality XR service.
[0143] In some example embodiments, the first resource is determined based on a predefined percent of a maximum total packet size in a transmission cycle of a haptic or sensing traffic.
[0144] In some example embodiments, the terminal device 110 may transmit, to the network device, an emergency indication indicating a delay-criticality of the second part of the determined data.
[0145] FIG. 5 illustrates a flowchart of a method 500 implemented at a network device in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 500 will be described from the perspective of a network device 120 in FIG. 1C.
[0146] At block 510, the network device 120 transmits, to a terminal device, CG configuration information indicating a first resource. At block 520, the network device 120 receives, from the terminal device, a first part of data using the first resource and an indication along with the first part of the data, wherein the indication indicates that a second resource is required for a transmission of a second part of the data.
[0147] In some example embodiments, the network device 120 further transmits, to the terminal device, uplink grant configuration information indicating the second resource based on the indication; and the network device 120 receives, from the terminal device, the second part of the data using the second resource.
[0148] In some example embodiments, the indication is carried in a UCI in a CG occasion corresponding to the first resource.
[0149] In some example embodiments, the indication comprises one or multiple bits indicating at least one of: there is the second part of the data to be transmitted, a size of the second resource required for a transmission of the second part of the data, a difference between the size of the second resource and a size of the first resource, or a ratio of the size of the second resource to the size of the first resource.
[0150] In some example embodiments, a mapping relationship between a value of the one or more bits and the ratio is pre-configured or pre-defined.
[0151] In some example embodiments, the indication is implemented by a reuse of a UTO-UCI, where the UTO-UCI comprises a specific bit with a first value for indicating a desired resource or with a second value for indicating an unused resource.
[0152] In some example embodiments, the data comprises a data packet or more than one data packet of a haptic or sensing traffic in a multiple-modality XR service.
[0153] In some example embodiments, the network device 120 determines the first resource based on a predefined percent of a maximum total packet size in a transmission cycle of a haptic or sensing traffic.
[0154] In some example embodiments, the network device 120 receives, from the terminal device, an emergency indication indicating a delay-criticality of the second part of the data.
[0155] In some example embodiments, an apparatus capable of performing the method 400 (for example, the terminal device 110) may comprise means for performing the respective steps of the method 400. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0156] The term “means” as used in the description and in the claims may refer to one or more individual elements configured to perform the corresponding recited functionality or functionalities, or it may refer to several elements that perform such functionality or functionalities. Furthermore, several functionalities recited in the claims may be performed by the same individual means or the same combination of means. For example, performing such functionality or functionalities may be caused in an apparatus by a processor that executes instructions stored in a memory of the apparatus.
[0157] In some example embodiments, the apparatus comprises: means for receiving, at a terminal device from a network device, CG configuration information indicating a first resource; means for determining an amount of data to be transmitted; and means for based on determining that the first resource is not enough for a transmission of the determined data, transmitting, to the network device, a first part of the determined data using the first resource and an indication along with the first part of the determined data, wherein the indication indicates that a second resource is required for a second part of the determined data.
[0158] In some example embodiments, the apparatus comprises: means for receiving, from the network device, uplink grant configuration information indicating the second resource based on the indication; and means for transmitting, to the network device, the second part of the determined data using the second resource.
[0159] In some example embodiments, the apparatus comprises: means for transmitting, to the network device, an emergency indication indicating a delay-criticality of the second part of the determined data.
[0160] In some example embodiments, an apparatus capable of performing the method 500 (for example, the network device 120) may comprise means for performing the respective steps of the method 500. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0161] The term “means” as used in the description and in the claims may refer to one or more individual elements configured to perform the corresponding recited functionality or functionalities, or it may refer to several elements that perform such functionality or functionalities. Furthermore, several functionalities recited in the claims may be performed by the same individual means or the same combination of means. For example, performing such functionality or functionalities may be caused in an apparatus by a processor that executes instructions stored in a memory of the apparatus.
[0162] In some example embodiments, the apparatus comprises: means for transmitting, by a network device to a terminal device, CG configuration information indicating a first resource; and means for receiving, from the terminal device, a first part of data using the first resource and an indication along with the first part of the data, wherein the indication indicates that a second resource is required for a second part of the data.
[0163] In some example embodiments, the apparatus comprises: means for transmitting, to the terminal device, uplink grant configuration information indicating the second resource based on the indication; and means for receiving, from the terminal device, the second part of the data using the second resource.
[0164] In some example embodiments, the apparatus comprises: means for determining the first resource based on a predefined percent of a maximum total packet size in a transmission cycle of a haptic or sensing traffic.
[0165] In some example embodiments, the apparatus comprises: means for receiving, from the terminal device, an emergency indication indicating a delay-criticality of the second part of the data.
[0166] FIG. 6 illustrates a simplified block diagram of a device 600 that is suitable for implementing some example embodiments of the present disclosure. The device 600 may be provided to implement the terminal device or the network device discussed above, for example the terminal device 110 or the network device 120 in FIG. 1C. As shown, the device 600 includes one or more processors 610, one or more memories 620 coupled to the processor 610, and one or more communication modules 640 coupled to the processor 610.
[0167] The communication module 640 is for bidirectional communications. The communication module 640 has at least one antenna to facilitate communication. The communication interface may represent any interface that is necessary for communication with other network elements.
[0168] The processor 610 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples. The device 600 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
[0169] The memory 620 may include one or more non-volatile memories and one or more volatile memories. Examples of the non-volatile memories include, but are not limited to, a Read Only Memory (ROM) 624, an electrically programmable read only memory (EPROM) , a flash memory, a hard disk, a compact disc (CD) , a digital video disk (DVD) , and other magnetic storage and / or optical storage. Examples of the volatile memories include, but are not limited to, a random access memory (RAM) 622 and other volatile memories that will not last in the power-down duration.
[0170] A computer program 630 includes computer executable instructions that are executed by the associated processor 610. The program 630 may be stored in the ROM 624. The processor 610 may perform any suitable actions and processing by loading the program 630 into the RAM 622.
[0171] The embodiments of the present disclosure may be implemented by means of the program 630 so that the device 600 may perform any process of the disclosure as discussed with reference to FIGS. 2-5. The embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
[0172] In some example embodiments, the program 630 may be tangibly contained in a computer readable medium which may be included in the device 600 (such as in the memory 620) or other storage devices that are accessible by the device 600. The device 600 may load the program 630 from the computer readable medium to the RAM 622 for execution. The computer readable medium may include any types of tangible non-volatile storage, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like.
[0173] FIG. 7 illustrates a block diagram of an example of a computer readable medium 700 in accordance with some example embodiments of the present disclosure. The computer readable medium 700 has the program 630 stored thereon. It is noted that although the computer readable medium 700 is depicted in form of CD or DVD in FIG. 7, the computer readable medium 700 may be in any other form suitable to carry or hold the program 630.
[0174] Various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
[0175] The present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium. The computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out the method as described above with reference to any of FIGS. 2-5. Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types. The functionality of the program modules may be combined or split between program modules as desired in various embodiments. Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
[0176] Program code for the methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
[0177] In the context of the present disclosure, the computer program codes or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above. Examples of the carrier include a signal, computer readable medium, and the like.
[0178] The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the computer readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. The term “non-transitory, ” as used herein, is a limitation of the medium itself (i.e., tangible, not a signal) as opposed to a limitation on data storage persistency (e.g., RAM vs. ROM) .
[0179] Further, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are contained in the above discussions, these should not be construed as limitations on the scope of the present disclosure, but rather as descriptions of features that may be specific to particular embodiments. Certain features that are described in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment may also be implemented in multiple embodiments separately or in any suitable sub-combination.
[0180] Although the present disclosure has been described in languages specific to structural features and / or methodological acts, it is to be understood that the present disclosure defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Claims
1.A terminal device comprising:at least one processor; andat least one memory storing instructions that, when executed by the at least one processor, cause the terminal device at least to:receive, from a network device, configured grant (CG) configuration information indicating a first resource;determine an amount of data to be transmitted; andbased on determining that the first resource is not enough for a transmission of determined data, transmit, to the network device, a first part of the determined data using the first resource and an indication along with the first part of the determined data, wherein the indication indicates that a second resource is required for a transmission of a second part of the determined data.2.The terminal device of claim 1, wherein the at least one processor is further configured to cause the terminal device to:receive, from the network device, uplink grant configuration information indicating the second resource based on the indication; andtransmit, to the network device, the second part of the determined data using the second resource.3.The terminal device of claim 1 or 2, wherein the indication is carried in uplink control information (UCI) in a CG occasion corresponding to the first resource.4.The terminal device of any of claims 1-3, wherein the indication comprises one or multiple bits indicating at least one of:there is the second part of the determined data to be transmitted,a size of the second resource required for a transmission of the second part of the determined data,a difference between the size of the second resource and a size of the first resource, ora ratio of the size of the second resource to the size of the first resource.5.The terminal device of claim 4, wherein a mapping relationship between a value of the one or more bits and the ratio is pre-configured or pre-defined.6.The terminal device of any of claims 1-5, wherein the indication is implemented by a reuse of an unused transmission occasion UCI (UTO-UCI) , wherein the UTO-UCI comprises a specific bit with a first value for indicating a desired resource or with a second value for indicating an unused resource.7.The terminal device of any of claims 1-6, wherein the determined data comprises a data packet or more than one data packet of a haptic or sensing traffic in a multiple-modality extended reality (XR) service.8.The terminal device of any of claims 1-7, wherein the first resource is determined based on a predefined percent of a maximum total packet size in a transmission cycle of a haptic or sensing traffic.9.The terminal device of any of claims 1-8, wherein the at least one processor is further configured to cause the terminal device to:transmit, to the network device, an emergency indication indicating a delay-criticality of the second part of the determined data.10.A network device comprising:at least one processor; andat least one memory storing instructions that, when executed by the at least one processor, cause the network device at least to:transmit, to a terminal device, configured grant (CG) configuration information indicating a first resource; andreceive, from the terminal device, a first part of data using the first resource and an indication along with the first part of the data, wherein the indication indicates that a second resource is required for a transmission of a second part of the data.11.The network device of claim 10, wherein the at least one processor is further configured to cause the network device to:transmit, to the terminal device, uplink grant configuration information indicating the second resource based on the indication; andreceive, from the terminal device, the second part of the data using the second resource.12.The network device of claim 10 or 11, wherein the indication is carried in uplink control information (UCI) in a CG occasion corresponding to the first resource.13.The network device of any of claims 10-12, wherein the indication comprises one or multiple bits indicating at least one of:there is the second part of the data to be transmitted,a size of the second resource required for a transmission of the second part of the data,a difference between the size of the second resource and a size of the first resource, ora ratio of the size of the second resource to the size of the first resource.14.The network device of claim 13, wherein a mapping relationship between a value of the one or more bits and the ratio is pre-configured or pre-defined.15.The network device of any of claims 10-14, wherein the indication is implemented by a reuse of an unused transmission occasion UCI (UTO-UCI) , wherein the UTO-UCI comprises a specific bit with a first value for indicating a desired resource or with a second value for indicating an unused resource.16.The network device of any of claims 10-15, wherein the data comprises a data packet or more than one data packet of a haptic or sensing traffic in a multiple-modality extended reality (XR) service.17.The network device of any of claims 10-16, wherein the at least one processor is further configured to cause the network device to:determine the first resource based on a predefined percent of a maximum total packet size in a transmission cycle of a haptic or sensing traffic.18.The network device of any of claims 10-17, wherein the at least one processor is further configured to cause the network device to:receive, from the terminal device, an emergency indication indicating a delay-criticality of the second part of the data.19.A method comprising:receiving, at a terminal device from a network device, configured grant (CG) configuration information indicating a first resource;determining an amount of data to be transmitted; andbased on determining that the first resource is not enough for a transmission of the determined data, transmitting, to the network device, a first part of the determined data using the first resource and an indication along with the first part of the determined data, wherein the indication indicates that a second resource is required for a second part of the determined data.20.A method comprising:transmitting, at a network device to a terminal device, configured grant (CG) configuration information indicating a first resource; andreceiving, from the terminal device, a first part of data using the first resource and an indication along with the first part of the data, wherein the indication indicates that a second resource is required for a second part of the data.21.An apparatus comprising:means for receiving, at a terminal device from a network device, configured grant (CG) configuration information indicating a first resource;means for determining an amount of data to be transmitted; andmeans for based on determining that the first resource is not enough for a transmission of the determined data, transmitting, to the network device, a first part of the determined data using the first resource and an indication along with the first part of the determined data, wherein the indication indicates that a second resource is required for a second part of the determined data.22.An apparatus comprising:means for transmitting, at a network device to a terminal device, configured grant (CG) configuration information indicating a first resource; andmeans for receiving, from the terminal device, a first part of data using the first resource and an indication along with the first part of the data, wherein the indication indicates that a second resource is required for a second part of the data.23.A computer readable storage medium comprising program instructions for causing an apparatus to perform at least the method of claim 19 or 20.
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