Data transmission in multiple-modality XR service
By configuring a dedicated and shared resource allocation for haptic/sensing traffic in XR services, the inefficiencies of existing data transmission methods are addressed, ensuring low latency and reliable data transfer through conflict resolution, enhancing network capacity and efficiency.
Patent Information
- Application Number
- PCT/CN2024/109981
- 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, such as Dynamic Grant/Configured Grant, are inefficient for haptic data in multiple-modality XR services due to stringent Packet Delay Budget, unpredictable burst size, and irregular periodicity, leading to decreased network capacity and increased latency.
A dedicated first resource and a shared second resource are configured for data transmission, where the first resource is dedicated to the terminal device and the second resource is shared among multiple devices, allowing for efficient data transmission by prioritizing the use of the dedicated resource first and utilizing the shared resource when necessary, with a conflict resolution mechanism for retransmissions.
This approach reduces latency and ensures reliable data transmission by minimizing resource conflicts and waste, effectively handling the unique characteristics of haptic/sensing traffic in multiple-modality XR services.
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Figure CN2024109981_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 and a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices; determine an amount of data to be transmitted; and transmit, to the network device, at least a first part of the determined data using the first resource.
[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 a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices; and receive, from the terminal device, at least a first part of data using the first resource.
[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 and a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices; determining an amount of data to be transmitted; and transmitting, to the network device, at least a first part of the determined data using the first resource.
[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 a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices; and receiving, from the terminal device, at least a first part of data using the first resource.
[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 and a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices; means for determining an amount of data to be transmitted; and means for transmitting, to the network device, at least a first part of the determined data using the first resource.
[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 a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices; and means for receiving, from the terminal device, at least a first part of data using the first resource.
[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 and a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices; determining circuitry configured to determine an amount of data to be transmitted; and transmitting circuitry configured to transmit, to the network device, at least a first part of the determined data using the first resource.
[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 a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices; and receiving circuitry configured to receive, from the terminal device, at least a first part of data using the first resource.
[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. 3 illustrates an example of CG resources in accordance with some example embodiments of the present disclosure;
[0023] FIGS. 4A-4D illustrate some example schematics of data transmission in accordance with some example embodiments of the present disclosure;
[0024] FIG. 5 illustrates an example of a procedure associated with an example in FIG. 4D in accordance with some example embodiments of the present disclosure;
[0025] FIG. 6 illustrates a flowchart of a method implemented at a terminal device in accordance with some example embodiments of the present disclosure;
[0026] FIG. 7 illustrates a flowchart of a method implemented at a network device in accordance with some example embodiments of the present disclosure;
[0027] FIG. 8 illustrates a simplified block diagram of a device that is suitable for implementing some example embodiments of the present disclosure; and
[0028] FIG. 9 illustrates a block diagram of an example of a computer readable medium in accordance with some example embodiments of the present disclosure.
[0029] Throughout the drawings, the same or similar reference numerals represent the same or similar elements, unless otherwise indicated.DETAILED DESCRIPTION
[0030] 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.
[0031] 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.
[0032] 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.
[0033] 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.
[0034] 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.
[0035] As used in this application, the term “circuitry” may refer to one or more or all of the following:
[0036] (a) hardware-only circuit implementations (such as implementations in only analog and / or digital circuitry) ;
[0037] (b) combinations of hardware circuits and software, such as (as applicable) :
[0038] (i) a combination of analog and / or digital hardware circuit (s) with software / firmware, and
[0039] (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
[0040] (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.
[0041] 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.
[0042] 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.
[0043] 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.
[0044] 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.
[0045] 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.
[0046] 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.
[0047] For a typical tactile and multi-modal communication service / application, there can be different modalities affecting the user experience, e.g.:
[0048] - Video / Audio media;
[0049] - Information perceived by sensors about the environment, e.g. brightness, temperature, humidity, etc.;
[0050] - 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) .
[0051] 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.
[0052] 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.
[0053] 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.
[0054] 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.
[0055] 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.
[0056] 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) .
[0057] It is defined that the fifth generation system (5GS) shall support tactile and multi-modal communication services with the following key performance indictors (KPI) .
[0058] Table 1. Multi-modal communication service performance requirements
[0059] 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.
[0060] - 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.
[0061] - The transmission of haptic data may impact the transmission of video and audio, and decrease the resource efficiency.
[0062] - Under the existing scheduling mechanism, the network capacity may be decreased if there is haptic traffic.
[0063] 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.
[0064] 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 and a second resource may be configured to a terminal device, where the first resource is dedicated to the terminal device and the second resource is shared among multiple devices. The terminal device may determine to transmit at least a first part of data using the first resource. In some examples, the second resource is used for a transmission of a second part of data in case the first resource is not enough. As such, a dedicated resource may be used firstly and a shared resource can be used in case the dedicated resource is not enough, in this event, the data transmission can be performed in time and accordingly the delay can be reduced. Furthermore, a conflict resolution mechanism is provided among multiple devices to enable the terminal device to retransmit the second part of data in case the conflict occurs. 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.
[0065] 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.
[0066] 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.
[0067] 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.
[0068] 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.
[0069] 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.
[0070] 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.
[0071] 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.
[0072] 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.
[0073] 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.
[0074] 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 / s and 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 / s and 2 Mbit / s.
[0075] 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. Therefore, 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; 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. It will not be able to achieve an end-to-end latency as low as 5ms . Accordingly, a more efficient scheme is needed.
[0076] 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.
[0077] At 210, the network device 120 transmits, and the terminal device 110 receives, CG configuration information which indicates a first resource and a second resource. The first resource is dedicated for the terminal device 110, and the second resource is shared by multiple devices. In some examples, the first resource in the present disclosure may also be referred to as a first CG resource, a dedicated resource, a dedicated CG resource, a first priority CG resource, etc. In some example, the second resource in the present disclosure may also be referred to as a second CG resource, a shared resource, a shared CG resource, a second priority CG resource, etc.
[0078] It should be noted that the first and second resources are discussed in embodiments of the present disclosure, but more resources with different priorities may be configured to the terminal device 110, for example, the network device 120 may configure at least two CG resources.
[0079] In some examples, the first and second resources are configured for a haptic / sensing traffic in a multiple-modality XR service of the terminal device 110. In some examples, the first and second resources are 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.
[0080] In some examples, the network device 120 may determine the first resource dedicated to the terminal device 110 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. In some examples, the first and second resources may cover almost 100% (e.g., all) data packets in the transmission cycle.
[0081] In some examples, the second resource is configured after the first resource, and is adjacent to the first resource in time. For example, the first resource is in slot n, and the second resource is in slot n+1, where n is a slot index.
[0082] It should be appreciated that the network device 120 may configure at least two resources to each terminal device, where different terminal devices are configured with the same second resource. It should be appreciated that the network device 120 may configure the at least CG resources for each transmission cycle.
[0083] FIG. 3 illustrates an example of CG resources 300 in accordance with some example embodiments of the present disclosure. As illustrated, a first CG resource 310 and a second CG resource 320 are configured for a haptic / sensing traffic in a period, e.g., with 4 ms. For example, the first CG resource 310 may be a first priority CG resource with 2 kbits, the second CG resource 320 may be a second priority CG resource with 6 kbits, and the first and second priority CG resources 310 and 320 are adjacent for a very low AN-PDB. The second priority CG resource follows the first priority CG resource closely in order to achieve a low latency of the whole data burst, whether in time or frequency domain.
[0084] Referring back to FIG. 2, 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, in the case of 4ms service interval and the data rate is between 16 kbit / s and 2 Mbit / s, there is a 90%probability that the packet size in each burst is less than 2k bits, where 2k bits / 4ms = 500 kbit / s, thus the first priority CG resource can cover 90%probability of packets in each burst.
[0085] 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.
[0086] 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 second resource is not used. In some examples, the indication may be a preempted transmission occasion (PTO) indication in a UCI in a CG occasion corresponding to the first resource. For example, the PTO indication may include one bit which is set as “0” . In some examples, the PTO indication is not transmitted, and the network device 120 may assume that the second resource is not used by the terminal device 110 in case no PTO indication is received.
[0087] FIG. 4A illustrates an example schematic of data transmission 410 in accordance with some example embodiments of the present disclosure. As illustrated, a size of the arriving packets 411 at UE side is smaller than the size of the first resource, and the first resource is used for transmission 412 of the packets without using the second resource.
[0088] Since the first resource is configured and dedicated to the terminal device 110, a transmission of the data may be made in time, and a delay of the transmission can be reduced. Since the first resource is dedicated to the terminal device 110, the transmission of the data using the first resource will not conflict with other transmission, and transmission efficiency can be guaranteed.
[0089] Referring back to FIG. 2, at 245, the terminal device 110 transmits, and the network device 120 receives, a first part of the determined data using the first resource and a second part of the determined data using the second resource. In some examples, a size of the first part of the determined data may equal to the size of the first resource, and the second part of the determined data may be the rest of the data other than the first part.
[0090] In addition, the terminal device 110 may further transmit an indication, e.g., in a UCI in a CG occasion corresponding to the first resource, which indicates that the second resource is used. In some examples, the indication is transmitted along with the first part of the determined data. In some examples, the indication may be a PTO indication in the UCI. For example, the PTO indication may include one bit which is set as “1” .
[0091] In some implementations, the network device 120 may determine whether the second resource is also used by another device, e.g., after the reception at 245. For example, if there is a PTO indication received from the terminal device 110, the network device 120 may determine whether the second resource is also used by another device, for example, whether there is a conflict occurs for the second resource.
[0092] In some examples, the second resource is only used by the terminal device 110, i.e., the second resource is not configured to any other device, or the second resource is configured to another device but not used by another device. In this case, there is no conflict on the second resource, and there is no need for the network device 120 to allocate another resource. From the perspective of terminal device 110, if no DG resource is further received, it may interpret that the transmission in this cycle is finished.
[0093] FIG. 4B illustrates an example schematic of data transmission 420 in accordance with some example embodiments of the present disclosure. As illustrated, a size of the arriving packets 421 at UE side is larger than the size of the first resource, and then both the first resource and the second resource are used for transmission 422 of the packets. In addition, a PTO indication 423 in the UCI is also transmitted to indicate that the second resource is used (or indicate an occupy of the second resource) . In this example, the network device 120 (gNB) determines that the second resource is not occupied by other device, e.g., only the PTO indication 423 is received without another PTO indication from a different UE in the period, in this case, the gNB may ignore the PTO indication and do nothing.
[0094] In some examples, the second resource may also be used by another device. For example, the network device 120 has allocated the second resource to a further terminal device, and the further terminal device has transmitted information using the second resource. For example, the second resource is a DG resource for the further terminal device in the period. For example, the network device 120 has allocated the second resource to the further terminal device by DG configuration information, that is, the network device 120 can schedule the shared resource to another UE with dynamic grant requirement.
[0095] In some examples, if the network device 120 determines that the second resource is also used by another terminal device, the network device 120 may further transmit DG configuration information indicating a third resource to the terminal device 110. After receiving the allocated third resource from the network device 120, the terminal device 110 may retransmit the second part of the determined data by using the third resource. Since there is a conflict for the second resource, a third resource may be allocated for a retransmission of the second part of the determined data, as such, the transmission reliability can be guaranteed.
[0096] FIG. 4C illustrates an example schematic of data transmission 430 in accordance with some example embodiments of the present disclosure. As illustrated, a size of the arriving packets 431 at UE side is larger than the size of the first resource, and then both the first resource and the second resource are used for transmission 432 of the packets. In addition, a PTO indication 433 in the UCI is also transmitted to indicate that the second resource is used (or indicate an occupy of the second resource) . In this example, the network device 120 (gNB) determines that the second resource is also occupied by other device, e.g., the second resource has allocated to another device, e.g., with the enhanced Mobile Broadband (eMBB) service. The gNB thus allocates a third resource 435 to the UE for a retransmission of the second part of packets.
[0097] In some examples, the second resource may also be used by another device. For example, the network device 120 has configured the second resource to the further terminal device as a shared resource by further CG configuration information, and a further indication is received from the further terminal device indicating that the second resource is used for a transmission of further data of the further terminal device. For example, the further terminal device may perform a transmission in a similar manner as the terminal device 110. For example, the network device 120 may receive two PTO indications from the terminal device 110 and the further terminal device in a same transmission cycle. In some examples, if the network device 120 determines that the second resource is also used by another terminal device, the network device 120 may further transmit DG configuration information indicating a third resource to the terminal device 110. In some examples, the network device 120 may also transmit further DG configuration information indicating a fourth resource to the further terminal device.
[0098] After receiving the allocated third resource from the network device 120, the terminal device 110 may retransmit the second part of the determined data by using the third resource. Since there is a conflict for the second resource, a third resource may be allocated for a retransmission of the second part of the determined data, as such, the transmission reliability can be guaranteed.
[0099] FIG. 4D illustrates an example schematic of data transmission 440 in accordance with some example embodiments of the present disclosure. As illustrated, a size of the arriving packets 441 at UE1 side is larger than the size of the first resource, and then both the first resource and the second resource are used for transmission 442 of the packets. In addition, a PTO indication 443 in the UCI is also transmitted to indicate that the second resource is used (or indicate an occupy of the second resource) . As illustrated, a size of the arriving packets 444 at UE2 side is larger than the size of the first resource, and then both the first resource and the second resource are used for transmission 445 of the packets. In addition, a PTO indication 446 in the UCI is also transmitted to indicate that the second resource is used (or indicate an occupy of the second resource) . It is to be noted that the first resource for UE1 and the first resource for UE2 may be with different sizes or with a same size. It is to be noted that the second resource is shared by UE1 and UE2.
[0100] In this example, the network device 120 (gNB) determines that there is a conflict in the second resource, e.g., based on received two PTO indications 443 and 446. The gNB thus allocates a third resource 447 to UE1 for a retransmission of the second part of packets 442, and allocates a fourth resource 448 to UE2 for a retransmission of the second part of packets 445.
[0101] FIG. 5 illustrates an example of a procedure 500 associated with an example in FIG. 4D in accordance with some example embodiments of the present disclosure. At 510, gNB configures associated dedicated CG resource and one shared CG resource to UE1 and UE2 for haptic / sensing traffic. For example, gNB may allocated dedicated CG resource 1 to UE1 and dedicated CG resource 2 to UE2, and also allocate a shared CG resource to UE1 and UE2.
[0102] In case data1 of a haptic / sensing traffic arriving at UE1 is larger than dedicated CG resource 1, UE1 transmits first part of data1 on dedicated CG resource1 and a PTO indication in CG-UCI at 521 and transmits second part of data1 on shared CG resource at 522. For example, the transmission at 521 may be at slot n, and the transmission at 522 may be at slot n+1.
[0103] In case data2 of a haptic / sensing traffic arriving at UE2 is larger than dedicated CG resource 2, UE2 transmits first part of data2 on dedicated CG resource2 and a PTO indication in CG-UCI at 523 and transmits second part of data2 on shared CG resource at 524. For example, the transmission at 523 may be at slot n, and the transmission at 524 may be at slot n+1.
[0104] Here the CG-UCI means the Uplink Control Information transmitted in the CG occasion. It should be noted that the CG-UCI is only an example for carrying the indication in the present disclosure, but other any uplink signal bear may carry the PTO, such as MAC-CE.
[0105] At 530, gNB may check PTOs and determine whether a conflict on shared CG resource occurs. For example, since two PTO indications are received, the gNB may determine that there is a conflict on shared CG resource.
[0106] At 540, gNB allocates DG resources to UE1 and UE2 respectively. For example, a DG resource 1 is allocated to UE1 and a DG resource 2 is allocated to UE2. At 550, UE1 retransmits the second part of data1 on DG resource 1. At 560, UE2 retransmits the second part of data2 on DG resource 2.
[0107] As discussed above, the first resource may be a dedicated resource and the second resource may be a shared resource to reduce the total amount of allocated resources needed, and thus reduce waste of not needed resources. The first and the second resources may be time-frequency resources.
[0108] For example, there are a first resource to UE1 and another first resource to UE2, and both first resources may be allocated with the same time but different frequencies, in order to enable simultaneous, but separate receptions by the gNB. For example, both first resources may alternatively be allocated with the same frequency but different times, in order to avoid conflicts in receptions by the gNB. For example, both first resources may alternatively be allocated with different frequencies and different times, this may depend on availability of resources, and avoid conflicts in receptions by the gNB.
[0109] The second resource has a different time compared to the first resource, but may have the same or different frequencies. Advantageously, the second resource is subsequent and / or adjacent in time to the respective first resource. In another example, the second resource has a same time as the first resource, but may have different frequencies. The second resource is a shared resource and can be used by either UE1 or UE2 or both for the transmission of data packets. The shared second resource may also be allocated to / shared by more than two UEs.
[0110] If a first amount of data, e.g. haptic and / or sensing data, is ready for transmission in UE1, then UE1 checks whether the first amount can be transmitted using only the first resource (dedicated to UE1) , if so, only the first resource is used. The second resource is then unused by UE1. Similarly, if a first amount of data, e.g. haptic and / or sensing data, is ready for transmission in UE2, then UE2 checks whether the first amount can be transmitted using only the first resource (dedicated to UE2) , if so, only the first resource is used. The second resource is then unused by UE2. If the dedicated first resource is not sufficient to transmit the first amount of data, then the second resource is used, either by UE1 or UE2, or by both, depending on the amount of data to be transmitted in each UE. In case both UEs use the second resource at the same time, a conflict in the reception may occur and then require an allocation of additional resources for resending data, e.g. using allocation of third and / or fourth resources. In this way, a high amount of fast data transfer can be achieved in conjunction with a low amount of reserved resources, and for the corrupted data which may occur in seldom cases, a fast re-transmission can be achieved, advantageously still fulfilling the low latency requirements.
[0111] The allocation of the third and fourth resources is performed advantageously to fulfil the very low latency and high service reliability requirements. Due to the use of one shared second resource by two different UEs, the reception of one or both UE transmissions might be corrupted, e.g. non-reception of at least part of the transmitted data.
[0112] If the reception of the UE1 transmission got corrupted, the gNB allocates the third resource to resend the transmitted data. The third resource is advantageously allocated within the same cycle. In this way, the missing 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.
[0113] Similarly, If the reception of the UE2 transmission got corrupted, the gNB allocates the fourth resource to resend the transmitted data. The fourth resource is advantageously allocated within the same cycle. In this way, the missing 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.
[0114] The capacity, bandwidth, and / or other characteristics of the third resource may be similar or equal to the shared second resource to allow the same amount of data to be transmitted at UE1. Similarly, the capacity, bandwidth, and / or other characteristics of the fourth resource may be similar or equal to the shared second resource to allow the same amount of data to be transmitted at UE2.
[0115] The third and fourth resources may be dedicated resources, and not shared resources, to increase the probability of successful receipt by the gNB without conflict.
[0116] The third and fourth resources may be dynamic resources to enable fast allocation and fast receipt by the gNB.
[0117] The third and fourth resources may be time-frequency resources. The third resource and the fourth resource may be allocated the same time, but different frequencies in order to enable simultaneous, but separate reception by the gNB. The third resource and the fourth resource may alternatively be allocated the same frequency, but different times in order to avoid conflicts in reception by the gNB. The third resource and the fourth resource may further alternatively be allocated different frequencies and different times, this may depend on availability of resources, and avoid conflicts in reception by the gNB.
[0118] By using the third and / or fourth resource, the fast retransmission of not correctly received data of UE1 and / or UE2 is 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.
[0119] The gNB may be configured to observe in how many cases re-transmission occurs, and subsequently adapt the allocation of more or less first and / or second resources to single or multiple UEs in order to optimize the allocation of the resources to the actual situation, e.g. higher amount of haptic and / or sensing data by one or more UEs 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 to use the second resource, may be allocated more first / dedicated resources in order not to use or less use shared second resources, and thus not or less conflicting with other UEs transmissions, and thus requiring less allocation of additional third and / or fourth resources. Before allocating first and second resources, UEs may also be categorized and grouped together depending on different criteria, e.g. expected traffic volume, same type of UEs, different types of UE, UE supporting same / different Release of standard, etc. A shared second resource may then be allocated to a group of UEs.
[0120] According to embodiments with reference to FIGS. 2-5, a solution for data transmission of a haptic / sensing traffic in a multiple-modality XR service is provided. On one hand, it applies a shared CG resource to carry the haptic / sensing packets with a variable size to ensure the transmission efficiency under the very low latency. On the other hand, it applies the PTO indication in UCI to indicate whether the share CG resource is used, for the network to determine whether a conflict occurs, and to ensure the successful transmission by the timely repetition on DG resource. As the PTO indication is provided in a CG-UCI, it can be read by the network device 120 in a more-timely manner, thus a DG resource may be allocated in time if needed, and the latency can be reduced.
[0121] Compared to a configuration of a dedicated CG resource, a configuration of a shared CG resource can greatly improve the resource utilization, especially for data packets with a trailing distribution in size, e.g., Pareto distribution.
[0122] If the dedicated first priority CG resource covers more than α%of the total packets size in each cycle, then the probability of that UE need to occupy the shared second priority CG resource is 1-α%.
[0123] Assuming that the shared second priority CG resource is configured to m UEs, then the conflict probability is P_conflict as in Equation (1) below, i.e., at least 2 UEs whose arriving packets are larger than the first priority CG resource and they both need the second priority CG resource to transmit the rest data, P_conflict = 1 - (α%) m –m* (1-α%) * (α%) (m-1) (1)
[0124] If the second priority CG resource also is dedicated, the resource utilization is only 1-α%of (m times second priority CG resource) . But when the the second priority CG resource is shared, the resource utilization would be P_utilization as in Equation (2) below, i.e., only 1 UE whose arriving packets are larger than the first priority CG resource and it needs the second priority CG resource to transmit the rest data. In addition, P_utilization is the utilization of one second priority CG resource without collision. P_utilization = m* (1-α%) * (α%) (m-1) (2)
[0125] Take an example mentioned above, in the case of 4ms service interval and the data rate is between 16 kbit / s and 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 8k bits / 4ms = 2 Mbit / s. gNB may configure 2k bits UL resource as the first priority CG resource for each UE in each 4ms cycle and may configure 6k bits UL resource as the second priority CG resource in each 4ms cycle. The comparison results show in Table 2.
[0126] Table 2. The conflict probability and resource utilization
[0127] As can be seen from Table 2, when the second priority CG resource is shared among 4 UEs, it only needs to allocate 44%of the UL resource (14 kbits / 32 kbits) , and the utilization of the second priority CG resource would increase to 30%of 6 kbits. However, the resource utilization in the dedicated solution is only 10%of 24 kbits (4 *6 kbits) . The cost is merely a 5%chance of conflict. In fact, throughout the entire stream, there is only a 10%*5%=0.005 probability that the gNB must allocate DG resources to allow conflicting UEs to retransmit the collision data.
[0128] As the second priority CG resource as a shared resource, it could be used by the haptic / sensing traffic of several UEs in a multiple-modality XR service. For example, it could save up to 50%radio resource, and resource utilization would increase by 12 times (e.g., obtained by the formula (24kbits / 6kbits) * (30% / 10%) ) .
[0129] In some examples, the second priority CG resource may be shared by more UEs to reduce the UL resource consumption, e.g., only 20k bits for 7 UEs (m=7) in each cycle. In this case, a little more conflict and the delay caused by retransmission may need to tolerate.
[0130] 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, a dedicated CG resource and a shared CG resource may be configured, a PTO indication may be provided when the shared CG resource is used. 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.
[0131] It is to be appreciated that although PTO indication 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.
[0132] FIG. 6 illustrates a flowchart of a method 600 implemented at a terminal device in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 600 will be described from the perspective of a terminal device 110 in FIG. 1C.
[0133] At block 610, the terminal device receives, from a network device, CG configuration information indicating a first resource and a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices. At block 620, the terminal device determines an amount of data to be transmitted. At block 630, the terminal device transmits, to the network device, at least a first part of the determined data using the first resource.
[0134] In some example embodiments, based on determining that the first resource is not enough for a transmission of the determined data, the terminal device transmits, to the network device, a second part of the determined data using the second resource.
[0135] In some example embodiments, an indication is transmitted along with the first part of the determined data, wherein the indication indicates that the second resource is used for a transmission of the second part of the determined data. In some examples, the indication is carried in a UCI in a CG occasion corresponding to the first resource.
[0136] In some example embodiments, the terminal device receives, from the network device, DG configuration information indicating a third resource. In some example embodiments, the terminal device retransmits, to the network device, the second part of the determined data using the third resource.
[0137] In some example embodiments, based on determining that the first resource is enough for a transmission of the determined data, the terminal device transmits, to the network device, the determined data using the first resource without using the second resource.
[0138] 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.
[0139] 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. In some example embodiments, the second resource is after and adjacent to the first resource in time.
[0140] FIG. 7 illustrates a flowchart of a method 700 implemented at a network device in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 700 will be described from the perspective of a network device 120 in FIG. 1C.
[0141] At block 710, the network device transmits, to a terminal device, CG configuration information indicating a first resource and a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices. At block 720, the network device receives, from the terminal device, at least a first part of data using the first resource.
[0142] In some example embodiments, the network device receives, from the terminal device, a second part of the data using the second resource.
[0143] In some example embodiments, an indication is received along with the first part of the data, wherein the indication indicates that the second resource is used for a transmission of the second part of the data. In some examples, the indication is carried in a UCI in a CG occasion corresponding to the first resource.
[0144] In some example embodiments, based on determining that the second resource is also used by a further terminal device, the network device transmits, to the terminal device, DG configuration information indicating a third resource. In some example embodiments, the network device receives, from the terminal device, a retransmission of the second part of the data using the third resource.
[0145] In some example embodiments, the network device determines that the second resource is also used by the further terminal device based on the following: the second resource has been allocated to the further terminal device by further DG configuration information, and the further terminal device has transmitted information using the second resource.
[0146] In some example embodiments, the network device determines that the second resource is also used by the further terminal device based on the following: the second resource has been configured to the further terminal device as a shared resource by further CG configuration information, and a further indication is received from the further terminal device indicating that the second resource is used for a transmission of further data of the further terminal device.
[0147] the data comprises a data packet or more than one data packet of a haptic or sensing traffic in a multiple-modality XR service.
[0148] In some example embodiments, the network device 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. In some example embodiments, the second resource is after and adjacent to the first resource in time.
[0149] In some example embodiments, an apparatus capable of performing the method 600 (for example, the terminal device 110) may comprise means for performing the respective steps of the method 600. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0150] 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.
[0151] 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 and a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices; means for determining an amount of data to be transmitted; and means for transmitting, to the network device, at least a first part of the determined data using the first resource.
[0152] In some example embodiments, the apparatus comprises: 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 second part of the determined data using the second resource.
[0153] In some example embodiments, the apparatus comprises: means for transmitting an indication along with the first part of the determined data, wherein the indication indicates that the second resource is used for a transmission of the second part of the determined data. In some examples, the indication is carried in a UCI in a CG occasion corresponding to the first resource.
[0154] In some example embodiments, the apparatus comprises: means for receiving, from the network device, DG configuration information indicating a third resource; and means for retransmitting, to the network device, the second part of the determined data using the third resource.
[0155] In some example embodiments, the apparatus comprises: means for based on determining that the first resource is enough for a transmission of the determined data, transmitting, to the network device, the determined data using the first resource without using the second resource.
[0156] In some example embodiments, an apparatus capable of performing the method 700 (for example, the network device 120) may comprise means for performing the respective steps of the method 700. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module.
[0157] 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.
[0158] 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 a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices; and means for receiving, from the terminal device, at least a first part of data using the first resource.
[0159] In some example embodiments, the apparatus comprises: means for receiving, from the terminal device, a second part of the data using the second resource.
[0160] In some example embodiments, the apparatus comprises: means for receiving an indication along with the first part of the data, wherein the indication indicates that the second resource is used for a transmission of the second part of the data. In some examples, the indication is carried in a UCI in a CG occasion corresponding to the first resource.
[0161] In some example embodiments, the apparatus comprises: means for based on determining that the second resource is also used by a further terminal device, transmitting, to the terminal device, DG configuration information indicating a third resource; and means for receiving, from the terminal device, a retransmission of the second part of the data using the third resource.
[0162] In some example embodiments, the apparatus comprises: means for determining that the second resource is also used by the further terminal device based on the following: the second resource has been allocated to the further terminal device by further DG configuration information, and the further terminal device has transmitted information using the second resource.
[0163] In some example embodiments, the apparatus comprises: means for determining that the second resource is also used by the further terminal device based on the following: the second resource has been configured to the further terminal device as a shared resource by further CG configuration information, and a further indication is received from the further terminal device indicating that the second resource is used for a transmission of further data of the further terminal device.
[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] FIG. 8 illustrates a simplified block diagram of a device 800 that is suitable for implementing some example embodiments of the present disclosure. The device 800 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 800 includes one or more processors 810, one or more memories 820 coupled to the processor 810, and one or more communication modules 840 coupled to the processor 810.
[0166] The communication module 840 is for bidirectional communications. The communication module 840 has at least one antenna to facilitate communication. The communication interface may represent any interface that is necessary for communication with other network elements.
[0167] The processor 810 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 800 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.
[0168] The memory 820 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) 824, 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) 822 and other volatile memories that will not last in the power-down duration.
[0169] A computer program 830 includes computer executable instructions that are executed by the associated processor 810. The program 830 may be stored in the ROM 824. The processor 810 may perform any suitable actions and processing by loading the program 830 into the RAM 822.
[0170] The embodiments of the present disclosure may be implemented by means of the program 830 so that the device 800 may perform any process of the disclosure as discussed with reference to FIGS. 2-7. The embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
[0171] In some example embodiments, the program 830 may be tangibly contained in a computer readable medium which may be included in the device 800 (such as in the memory 820) or other storage devices that are accessible by the device 800. The device 800 may load the program 830 from the computer readable medium to the RAM 822 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.
[0172] FIG. 9 illustrates a block diagram of an example of a computer readable medium 900 in accordance with some example embodiments of the present disclosure. The computer readable medium 900 has the program 830 stored thereon. It is noted that although the computer readable medium 900 is depicted in form of CD or DVD in FIG. 9, the computer readable medium 900 may be in any other form suitable to carry or hold the program 830.
[0173] 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.
[0174] 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. 2-7. 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.
[0175] 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.
[0176] 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.
[0177] 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) .
[0178] 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.
[0179] 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 and a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices;determine an amount of data to be transmitted; andtransmit, to the network device, at least a first part of the determined data using the first resource.2.The terminal device of claim 1, wherein the at least one processor is further configured to cause the terminal device to:based on determining that the first resource is not enough for a transmission of the determined data, transmit, to the network device, a second part of the determined data using the second resource.3.The terminal device of claim 2, wherein an indication is transmitted along with the first part of the determined data, wherein the indication indicates that the second resource is used for a transmission of the second part of the determined data.4.The terminal device of claim 3, wherein the indication is carried in uplink control information (UCI) in a CG occasion corresponding to the first resource.5.The terminal device of any of claims 2-4, wherein the at least one processor is further configured to cause the terminal device to:receive, from the network device, dynamic grant (DG) configuration information indicating a third resource; andretransmit, to the network device, the second part of the determined data using the third resource.6.The terminal device of claim 1, wherein the at least one processor is configured to cause the terminal device to:based on determining that the first resource is enough for a transmission of the determined data, transmit, to the network device, the determined data using the first resource without using the second 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 second resource is after and adjacent to the first resource in time.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 and a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices; andreceive, from the terminal device, at least a first part of data using the first resource.11.The network device of claim 10, wherein the at least one processor is further configured to cause the network device to:receive, from the terminal device, a second part of the data using the second resource.12.The network device of claim 11, wherein an indication is received along with the first part of the data, wherein the indication indicates that the second resource is used for a transmission of the second part of the data.13.The network device of claim 12, wherein the indication is carried in uplink control information (UCI) in a CG occasion corresponding to the first resource.14.The network device of any of claims 11-13, wherein the at least one processor is further configured to cause the network device to:based on determining that the second resource is also used by a further terminal device, transmit, to the terminal device, dynamic grant (DG) configuration information indicating a third resource; andreceive, from the terminal device, a retransmission of the second part of the data using the third resource.15.The network device of claim 14, wherein the at least one processor is further configured to cause the network device to:determine that the second resource is also used by the further terminal device based on the following:the second resource has been allocated to the further terminal device by further DG configuration information, andthe further terminal device has transmitted information using the second resource.16.The network device of claim 14, wherein the at least one processor is further configured to cause the network device to:determine that the second resource is also used by the further terminal device based on the following:the second resource has been configured to the further terminal device as a shared resource by further CG configuration information, anda further indication is received from the further terminal device indicating that the second resource is used for a transmission of further data of the further terminal device.17.The network device of any of claims 10-16, 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.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: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.19.The network device of any of claims 10-18, wherein the second resource is after and adjacent to the first resource in time.20.A method comprising:receiving, at a terminal device from a network device, configured grant (CG) configuration information indicating a first resource and a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices;determining an amount of data to be transmitted; andtransmitting, to the network device, at least a first part of the determined data using the first resource.21.A method comprising:transmitting, at a network device to a terminal device, configured grant (CG) configuration information indicating a first resource and a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices; andreceiving, from the terminal device, at least a first part of data using the first resource.22.An apparatus comprising:means for receiving, at a terminal device from a network device, configured grant (CG) configuration information indicating a first resource and a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices;means for determining an amount of data to be transmitted; andmeans for transmitting, to the network device, at least a first part of the determined data using the first resource.23.An apparatus comprising:means for transmitting, at a network device to a terminal device, configured grant (CG) configuration information indicating a first resource and a second resource, wherein the first resource is dedicated for the terminal device and the second resource is shared among a plurality of devices; andmeans for receiving, from the terminal device, at least a first part of data using the first resource.24.A computer readable storage medium comprising program instructions for causing an apparatus to perform at least the method of claim 20 or 21.
Citation Information
Patent Citations
Resource determination and configuration method, terminal and network side equipment
CN116981076A
Wireless communication method and device for extended reality traffic
WO2023231026A1
Autonomous transmissions over shared resources
WO2024110017A1