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WO2025068003A1 - Transmission de données sur une porteuse radio - Google Patents

Transmission de données sur une porteuse radio Download PDF

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Publication number
WO2025068003A1
WO2025068003A1 PCT/EP2024/076167 EP2024076167W WO2025068003A1 WO 2025068003 A1 WO2025068003 A1 WO 2025068003A1 EP 2024076167 W EP2024076167 W EP 2024076167W WO 2025068003 A1 WO2025068003 A1 WO 2025068003A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
adjustable
signalling radio
radio bearer
priority
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/EP2024/076167
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English (en)
Inventor
Endrit DOSTI
Tero Henttonen
Malgorzata Tomala
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Technologies Oy
Original Assignee
Nokia Technologies Oy
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Filing date
Publication date
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Publication of WO2025068003A1 publication Critical patent/WO2025068003A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H04W28/0263—Traffic management, e.g. flow control or congestion control per individual bearer or channel involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H04L47/2425—Traffic characterised by specific attributes, e.g. priority or QoS for supporting services specification, e.g. SLA
    • H04L47/2433—Allocation of priorities to traffic types
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections

Definitions

  • Various example embodiments of the present disclosure generally relate to the field of telecommunication and in particular, to methods, devices, apparatuses and computer readable storage medium for data transmission on radio bearer.
  • the cellular mobile telecommunication systems are built on top of protocols that control how the data is transmitted between phones and networks. These protocols are often divided into user plane (UP) and control plane (CP), where the user plane is dedicated to the actual task of transmitting user data between user and network, and the control plane is dedicated to ensuring that the user plane is operational. That is, the CP is used for establishing UP, and it is the task of CP to ensure the UP functions at all times.
  • UP user plane
  • CP control plane
  • the UP and CP are both scheduled using radio bearers, which encompass the data sent from a specific source to a logical target.
  • the radio bearers for UP are called Data Radio Bearers (DRB) and Signalling Radio Bearers (SRB) for CP.
  • DRB Data Radio Bearers
  • SRB Signalling Radio Bearers
  • LCH Logical Channel
  • the MAC layer assigns data from one or more DRB/SRB to be transmitted according to the Logical Channel Prioritization (LCP), which uses a token bucket mechanism to ensure higher priority data is scheduled more than lower priority data.
  • LCP Logical Channel Prioritization
  • a first apparatus comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus at least to: transmit, to a second apparatus, information indicating at least one type of data to be transmitted by the first apparatus to the second apparatus; obtain a plurality of configurations for a plurality of adjustable signalling radio bearers, a priority for an adjustable signalling radio bearer being adjustable based on at least one of signalling from the second apparatus, one or more characteristics of data to be transmitted, or one or more radio conditions between the first apparatus and the second apparatus; determine, i based on the plurality of configurations, a first adjustable signalling radio bearer from the plurality of adjustable signalling radio bearers for transmission of data; and transmit, to the second apparatus, the data on the first adjustable signalling radio bearer according to a first priority of the first adjustable signalling radio bearer.
  • a second apparatus comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second apparatus at least to: receive, from a first apparatus, information indicating at least one type of data to be transmitted by the first apparatus to the second apparatus; transmit, to a first apparatus, a plurality of configurations for a plurality of adjustable signalling radio bearers, a priority for an adjustable signalling radio bearer being adjustable based on at least one of signalling from the second apparatus, one or more characteristics of data to be transmitted, or one or more radio conditions between the first apparatus and the second apparatus; and receive, from the first apparatus, data on a first adjustable signalling radio bearer of the plurality of adjustable signalling radio bearers, the data being transmitted by the first apparatus according to a first priority of the first adjustable signalling radio bearer.
  • a method comprises: transmitting, to a second apparatus, information indicating at least one type of data to be transmitted by the first apparatus to the second apparatus; obtaining a plurality of configurations for a plurality of adjustable signalling radio bearers, a priority for an adjustable signalling radio bearer being adjustable based on at least one of: signalling from the second apparatus, one or more characteristics of data to be transmitted, or one or more radio conditions between the first apparatus and the second apparatus; determining, based on the plurality of configurations, a first adjustable signalling radio bearer from the plurality of adjustable signalling radio bearers for transmission of data; and transmitting, to the second apparatus, the data on the first adjustable signalling radio bearer according to a first priority of the first adjustable signalling radio bearer.
  • a method comprises: receiving, from a first apparatus, information indicating at least one type of data to be transmitted by the first apparatus to the second apparatus; transmitting, to a first apparatus, a plurality of configurations for a plurality of adjustable signalling radio bearers, a priority for an adjustable signalling radio bearer being adjustable based on at least one of: signalling from the second apparatus, one or more characteristics of data to be transmitted, or one or more radio conditions between the first apparatus and the second apparatus; and receiving, from the first apparatus, data on a first adjustable signalling radio bearer of the plurality of adjustable signalling radio bearers, the data being transmitted by the first apparatus according to a first priority of the first adjustable signalling radio bearer.
  • the first apparatus comprises means for transmitting, to a second apparatus, information indicating at least one type of data to be transmitted by the first apparatus to the second apparatus; means for obtaining a plurality of configurations for a plurality of adjustable signalling radio bearers, a priority for an adjustable signalling radio bearer being adjustable based on at least one of signalling from the second apparatus, one or more characteristics of data to be transmitted, or one or more radio conditions between the first apparatus and the second apparatus; means for determining, based on the plurality of configurations, a first adjustable signalling radio bearer from the plurality of adjustable signalling radio bearers for transmission of data; and means for transmitting, to the second apparatus, the data on the first adjustable signalling radio bearer according to a first priority of the first adjustable signalling radio bearer.
  • a second apparatus comprises means for receiving, from a first apparatus, information indicating at least one type of data to be transmitted by the first apparatus to the second apparatus; means for transmitting, to a first apparatus, a plurality of configurations for a plurality of adjustable signalling radio bearers, a priority for an adjustable signalling radio bearer being adjustable based on at least one of signalling from the second apparatus, one or more characteristics of data to be transmitted, or one or more radio conditions between the first apparatus and the second apparatus; and means for receiving, from the first apparatus, data on a first adjustable signalling radio bearer of the plurality of adjustable signalling radio bearers, the data being transmitted by the first apparatus according to a first priority of the first adjustable signalling radio bearer.
  • a computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the third aspect.
  • a computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the fourth aspect.
  • FIG. 1 illustrates an example communication environment in which example embodiments of the present disclosure can be implemented
  • FIG. 2 illustrates example functional architecture of AI/ML for air interface
  • FIG. 3 illustrates a signaling chart for communication according to some example embodiments of the present disclosure
  • FIG. 4 illustrates a signaling chart for communication according to some further example embodiments of the present disclosure
  • FIG. 5 illustrates a signaling chart for communication according to some yet further example embodiments of the present disclosure
  • FIG. 6 illustrates a flowchart of a method implemented at a first apparatus according to some example embodiments of the present disclosure
  • FIG. 7 illustrates a flowchart of a method implemented at a second apparatus according to some example embodiments of the present disclosure
  • FIG. 8 illustrates a simplified block diagram of a device that is suitable for implementing example embodiments of the present disclosure.
  • FIG. 9 illustrates a block diagram of an example computer readable medium in accordance with some example embodiments of the present disclosure.
  • 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.
  • step “in response to A” does not indicate that the step is performed immediately after “A” occurs and one or more intervening steps may be included.
  • circuitry may refer to one or more or all of the following:
  • 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.
  • software e.g., firmware
  • 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.
  • 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.
  • the term “communication network” refers to a network following any suitable communication standards, such as New Radio (NR), Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), Narrow Band Internet of Things (NB-IoT) and so on.
  • NR New Radio
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • NB-IoT Narrow Band Internet of Things
  • the communications between a terminal device and a network device 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) communication 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.
  • the term “network device” or “network node” 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), an NR NB (also referred to as a gNB), a Remote Radio Unit (RRU), a radio header (RH), a remote radio head (RRH), a relay, an Integrated Access and Backhaul (IAB) node, a low power node such as a femto, a pico, a non-terrestrial network (NTN) or non-ground network device such as a satellite network device, a low earth orbit (LEO) satellite and a geosynchronous earth orbit (GEO) satellite, an aircraft network device, and so forth, depending on the applied terminology and technology.
  • BS base station
  • radio access network (RAN) split architecture comprises a Centralized Unit (CU) and a Distributed Unit (DU) at an IAB donor node.
  • An IAB node comprises a Mobile Terminal (IAB-MT) part that behaves like a UE toward the parent node, and a DU part of an IAB node behaves like a base station toward the next-hop IAB node.
  • IAB-MT Mobile Terminal
  • terminal device refers to any end device that may be capable of wireless communication.
  • 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), or an Access Terminal (AT).
  • UE user equipment
  • SS Subscriber Station
  • MS Mobile Station
  • AT Access Terminal
  • 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 customerpremises equipment (CPE), an Internet of Things (loT) 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.
  • VoIP voice over IP
  • the terminal device may also correspond to a Mobile Termination (MT) part of an IAB node (e.g., a relay node).
  • MT Mobile Termination
  • IAB node e.g., a relay node
  • the terms “terminal device”, “communication device”, “terminal”, “user equipment” and “UE” may be used interchangeably.
  • the term “resource,” “transmission resource,” “resource block,” “physical resource block” (PRB), “uplink resource,” or “downlink resource” may refer to any resource for performing a communication, for example, a communication between a terminal device and a network device, such as a resource in time domain, a resource in frequency domain, a resource in space domain, a resource in code domain, or any other resource enabling a communication, and the like.
  • a resource in both frequency domain and time domain will be used as an example of a transmission resource for describing some example embodiments of the present disclosure. It is noted that example embodiments of the present disclosure are equally applicable to other resources in other domains.
  • FIG. 1 illustrates an example communication environment 100 in which example embodiments of the present disclosure can be implemented.
  • a plurality of communication devices including a first apparatus 110 and a second apparatus 120, can communicate with each other.
  • first apparatus 110 operating as a terminal device
  • second apparatus 120 operating as a network device with a serving area 102 for serving the terminal device.
  • operations described in connection with the first apparatus 110 may be implemented at a network node or other device
  • operations described in connection with the second apparatus 120 may be implemented at a terminal device or other device.
  • a link from the second apparatus 120 to the first apparatus 110 is referred to as a downlink (DL), while a link from the first apparatus 110 to the second apparatus 120 is referred to as an uplink (UL).
  • DL the second apparatus 120 is a transmitting (TX) device (or a transmitter) and the first apparatus 110 is a receiving (RX) device (or a receiver).
  • UL the first apparatus 110 is a TX device (or a transmitter) and the second apparatus 120 is a RX device (or a receiver).
  • Communications in the communication 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 (5G), the sixth generation (6G), and 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.
  • IEEE Institute for Electrical and Electronics Engineers
  • 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.
  • CDMA Code Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • MIMO Multiple-Input Multiple-Output
  • OFDM Orthogonal Frequency Division Multiple
  • DFT-s-OFDM Discrete Fourier Transform spread OFDM
  • the communication environment 100 may include any suitable number of apparatuses configured to implementing example embodiments of the present disclosure. Although not shown, it would be appreciated that one or more additional apparatuses may be located comprised in the communication environment 100.
  • UP user plane
  • CP control plane
  • SRB SRBs.
  • LCH Logical Channel
  • each DRB and SRB is assigned with a Logical Channel (LCH), each of which also has a priority value.
  • LCP Logical Channel Prioritization
  • the SRBs always have higher priority than the DRBs, since the content in SRBs is assumed to have smaller data volume and be critical for maintaining the radio resource control (RRC) connectivity.
  • RRC radio resource control
  • the SRBs also have a fixed priority in current 3GPP standards. In most cases, if x ⁇ y, SRBx has higher priority than SRBy (e.g., SRB1 has higher priority than SRB2). This makes using the SRBs inflexible in some applications.
  • An application for the SRB with different priorities would be the study of Artificial Intelligence (AI)/Machine Learning (ML) for New Radio (NR) air interface, which is now ongoing in 3GPP Rel-18.
  • the goal is to explore the benefits and specification aspects (extension of existing frameworks and/or creation of new frameworks) of augmenting the air interface with features enabling improved support of AI/ML-based algorithms for enhanced performance and/or reduced complexity/overhead.
  • Several use cases are considered to enable the identification of a common AI/ML framework, including functional requirements of AI/ML architecture, which could be used in subsequent projects.
  • the study should also identify areas where AI/ML could improve the performance of air-interface functions. Specification impacts will be assessed to improve the overall understanding of what would be required to enable AI/ML techniques for the air interface.
  • FIG. 2 illustrates example functional architecture 200 of AI/ML for air interface.
  • AI/ML there are some agreements.
  • Management may be model-based management, or functionality-based management.
  • the MDT reporting was introduced in the communication systems with a simple aim: the terminal device collects measurements and then the network utilizes to optimize the network. This includes two mechanisms: logged MDT (where the terminal device collects these measurements in RRC IDLE mode as part of its regular reselection measurements according to specific event), and immediate MDT (where the network can use the RRM measurements collected in RRC CONNECTED mode to collect data for the network optimization processes).
  • the logged MDT requires the terminal device to measure and store the measurements for later reporting (including 64 kB as the minimum memory requirement for the terminal device), which also requires user consent to be provided since the reported information may contain e.g., terminal location information.
  • Immediate MDT is transparent to the terminal device and the network collects the measurements as part of its normal operation.
  • the QoE reporting mechanism was introduced in the LTE communication systems to allow the network to collect application layer statistics from the terminal device, i.e., to allow the radio network to perceive whether the end-to-end connection quality is good or bad. This was later adopted also for the NR network.
  • the so-called unified bearers were introduced in EUTRA-NR Dual Connection (EN-DC) to make the anchoring point of a DRB invisible to the terminal device.
  • a DRB may be anchored in either a master node (MN) or a secondary node (SN), but the terminal device wouldn’t know that except for the security key configuration.
  • the so-called unified bearers were made DRBs agnostic to the location of the packet data convergence protocol (PDCP) anchoring point.
  • PDCP packet data convergence protocol
  • RAN Radio Access Network
  • CP i.e., using an SRB, e.g., SRB4
  • UP i.e., using a specific DRB for the AI/ML.
  • the discussion has centered on where the training is done. For CP, this would be inside the 3GPP core network, while for UP this could also be within some external service outside the CN.
  • the SRB always have higher priority than the DRB, since their content is assumed to have smaller data volume and be critical for maintaining the RRC connectivity. This means that if the CP has a lot of data to transmit, the UP data may be pre-empted or at least deprioritized, which can reduce the experience connection quality (i.e. Quality of Experience, QoE) for the user.
  • QoE Quality of Experience
  • One issue with the SRBs indexed in a fixed manner e.g., SRB4 is that their use is dependent on SRBs with lower index and their establishment. To use SRBy, its often required to establish SRBx (x ⁇ y) with lower priority (e.g., at least SRB0, 1, 2).
  • any new SRB introduction impacts the fixed range split and handling of the radio bearers mapping to logical channels.
  • adjustable radio bearer has an adjustable priority, which can be either semi-static (e.g., configured by the network signaling) or depend on the radio conditions or one or more characteristics of data to be transmitted on the radio bearer.
  • the priority for or of the adjustable radio bearer can be based on one or more characteristics of data to be transmitted (e.g. type of data), and/or one or more radio conditions between the network device and the terminal device.
  • the new type of radio bearer may be a new type of SRB, referred to as adjustable or adaptive SRB (aSRB) with an adjustable scheduling priority.
  • the priority for or of the aSRB can be either semi-static (e.g., configured by the network signaling) or depend on the radio conditions or one or more characteristics of data to be transmitted on the radio bearer.
  • the new type of radio bearer may be understood as a new type of DRB instead of SRB.
  • a hybrid radio bearer can enable the option of communication between the terminal device and the network device for sending data over the radio connection without limitations to handle this as a subsequent bearer establishment (following certain radio bearer establishment and at the backbone network, such as for SRBO/1/2).
  • the terminal device may also be configured which data is sent over the adjustable radio bearer, or may have more than one adjustable radio bearer, each with its own priority. This could allow more flexibility for the network control over uplink transmissions, as well as provide a “unified radio bearer”. In this case, data that are not useful to the network can wait for transmission, whereas data that can be useful to the network or to both the network and the terminal device (e.g., data that are used from both the network and the terminal device for training AI/ML models) can be transmitted with a higher priority.
  • different types of data can have their own adjustable radio bearers, with different priority levels.
  • FIG. 3 shows a signaling chart 300 for communication according to some example embodiments of the present disclosure.
  • FIG. 1 shows the signaling chart 300.
  • the signaling chart 300 involves the first apparatus 110 and the second apparatus 120.
  • the first apparatus 110 obtains (310) a configuration for the at least one adjustable radio bearer. From the configuration, the first apparatus 110 can derive at least one priority for the at least one adjustable radio bearer, which is determined based on at least one of the signalling from the second apparatus 120, one or more characteristics of data to be transmitted, or one or more radio conditions between the first apparatus 110 and the second apparatus 120. For example, obtaining the configuration may comprise receiving configuration for the at least one adjustable radio bearer. The configuration may be received from the second apparatus 120 or some other apparatus, such as network apparatus. In one example, the configuration configures the at least one adjustable radio bearer for the first apparatus 110 (e.g. enables the use of said at least one adjustable radio bearer).
  • the obtaining the configuration may comprise obtaining preconfigured information (e.g. defined in one or more cellular standards according to which the first apparatus 110 is configured to operate) on the priority of the at least one adjustable radio bearer. So, in some examples, the received configuration may be used to activate the at least one adjustable radio bearer for the first apparatus 110, but the priority may be determined based on preconfigured information associated with the activated at least one adjustable radio bearer.
  • preconfigured information e.g. defined in one or more cellular standards according to which the first apparatus 110 is configured to operate
  • the second apparatus 120 determines (302) at least one priority for at least one adjustable radio bearer based on at least one of one or more characteristics of data to be transmitted from a first apparatus 110, or one or more radio conditions between the first apparatus 110 and the second apparatus 120.
  • the second apparatus 120 transmits (305), to the first apparatus 110, the configuration for the at least one adjustable radio bearer.
  • the configuration at least indicates (e.g. comprises an information element or elements indicating the priority) the at least one priority for the at least one adjustable radio bearer.
  • the first apparatus 110 can receive the configuration for the at least one adjustable radio bearer from the second apparatus 120.
  • the configuration for the at least one adjustable radio bearer may be received by the first apparatus 110 from another network entity other than the second apparatus 120.
  • the first apparatus 110 may receive the adjustable radio bearer established by the second apparatus 120 and may determine itself the at least one priority for the at least one adjustable radio bearer.
  • An adjustable radio bearer may be understood as a new type of radio bearer introduced with adjustable priorities. As described, the adjustability of the priority may mean that the priority of the aSRB can be changed by the network (e.g. second apparatus 120 or some other network apparatus) or by the first apparatus 110. This is different to the known SRBs which rely on using fixed priority schema which usually is defined in cellular specifications.
  • the adjustable radio bearer may be considered as a DRB-SRB hybrid as it has priority adjustability but is established on the control plane.
  • an adjustable radio bearer may classified as a new type of SRB, referred to as aSRB.
  • an adjustable radio bearer may classified as a new type of DRB, referred to as aDRB.
  • the adjustable radio bearer proposed herein is referred to as “aSRB.”
  • the second apparatus 120 is able to control the priority for the adjustable radio bearer either via configuration signaling (e.g., the RRC signalling can semi-statically fix the priority for the adjustable radio bearer) or dynamically (e.g., the type of contained data over the adjustable radio bearer determines the priority for the adjustable radio bearer).
  • the second apparatus 120 may transmit configuration signalling (e.g. RRC) to the first apparatus 110.
  • the first apparatus 110 may receive the signalling and determine priority for the adjustable radio bearer based on the received signalling.
  • a priority for an adjustable radio bearer may depend on one or more of the following factors, including the characteristics of the data (e.g. type of data) to be transmitted from the first apparatus 110, the radio conditions, and/or other factors.
  • a first type of data may have a first priority and a second type of data may have a second priority, where first priority is higher than second priority.
  • the priority of the adjustable radio bearer is first priority or second priority.
  • first priority may be higher than priority of one or more DRBs, but second priority may be lower than said one or more DRBs.
  • This provides flexibility for configuration of the adjustable bearer as the type of data may affect the priority, and hence the transfer of data from the first apparatus 110 to the second apparatus 120.
  • radio conditions may affect the priority of the adjustable bearer. Determination of the priority for the adjustable radio bearer may be performed, based on one or more of the given criteria/examples, at the first apparatus 110, or at the second apparatus 120 (or some other network apparatus) in case the second apparatus 120 may indicate the priority for the first apparatus 110 as described herein.
  • the priority for the aSRB may be determined based on the type of the data to be transmitted, e.g., logged data, measurement results, AI/ML data collection, application/upper layer data and/or messaging, etc. In some example embodiments, the priority for the aSRB may be determined based on the type of embedded data in the SRB, e.g., one or more of CP information, non-access stratum (NAS) message, AI/ML training data, and the like.
  • NAS non-access stratum
  • the priority for the aSRB may be alternatively or additionally determined based on a termination point (or target) of the data, which can be a selective network entity such as a Distributed Unit (DU), a Centralized Unit (CU), Operation Administration and Maintenance (0AM), Core Network (CN), or a cloud-based network entity that is capable to terminate an SRB.
  • a termination point or target
  • DU Distributed Unit
  • CU Centralized Unit
  • AM Operation Administration and Maintenance
  • CN Core Network
  • cloud-based network entity that is capable to terminate an SRB.
  • the priority for the aSRB may be alternatively or additionally determined based on whether the data is to be segmented or not. For example, if the amount of data is larger than the maximum size of the aSRB, the data needs to be segmented to a number of pieces and transmitted in several messages (e.g., RRC messages) using aSRB. In this case, the segmented aSRB may be configured with a lower priority than the non-segmented SRBs or aSRBs.
  • the priority for the aSRB may be alternatively or additionally determined based on importance of the data to the second apparatus 120 (e.g., whether the data to be sent is useful to the second apparatus 120).
  • Data transmitted from the first apparatus 110 may be classified as data that is useful to the second apparatus 120 (e.g., standardized measurement reports), assistance information, and data that is not useful to the second apparatus 120 (e.g., UE-internal measurements).
  • the data that is useful to the second apparatus 120 may be more valuable and can be prioritized than the data that is UE- internal and may (possibly) be transparent to the second apparatus.
  • segments may be determined with different priorities. For example, segments which contain information useful to both the second apparatus 120 and the first apparatus 110 may be more valuable to be prioritized, when compared to segments which contain UE-specific information which could (possibly) be transparent to the second apparatus 120.
  • the priority for the aSRB may be alternatively or additionally determined based on a buffer status of DRBs at the first apparatus 110, and/or a quality of service (QoS) requirement of DRBs at the first apparatus 110. For example, if the first apparatus 110 has a full buffer of data to be transmitted using DRBs and the data have strict QoS requirements, the aSRB may have a lower priority than the DRBs.
  • QoS quality of service
  • the priority for the aSRB may be alternatively or additionally determined based on a use case related to the data to be transmitted.
  • the use case related to the data may be determined based on the termination point of the data and/or may indicate implicitly a final destination of the data.
  • the data may be terminated at RAN only, at a RAN internal entity (e.g., CU, DU, cloud), or at a network entity outside RAN (e.g., cloud, Core Network, Network Data Analytics Function, Management Data analytics, etc.).
  • the use case related to the data may be determined based on the purpose of the transmitted data. For example, in the AI/ML data collection, the use case may depend on whether the collected data is used in AI/ML model training for particular optimization sub-use cases such as CSI, beam measurement (BM), positioning, user plane, user plane over NAS, logged data, etc.
  • the priority for the aSRB may be alternatively or additionally determined based on one or more radio conditions in one or more of the serving cells for the first apparatus. For example, if the first apparatus 110 is in a good radio condition with the second apparatus 120, the aSRB may be determined as having a higher priority since it can be fully transmitted more quickly. That is, better the radio conditions, higher the priority. In other words, as radio conditions weaken, priority may be adjusted to be lower.
  • the first apparatus 110 may change the priority for an aSRB relatively based on the type of data that it is transmitting.
  • the aSRB may be configured by the second apparatus 120 (or by some other network apparatus) to be used as a link and to open the link for transmission.
  • the second apparatus 120 may not have to pass along the configuration parameters the explicit priority value of the aSRB.
  • one can be used for control data (frequent or constantly available data), but less frequent and occasionally appearing data may be sent by the first apparatus 110 on any next free available SRB (e.g., the second SRB).
  • an aSRB with a given priority may be used for transmission one type of data, but at other times the aSRB with the same priority may be used for a different type of data or data with different characteristics.
  • an aSRB may be determined as a high priority for AI/ML data collection, but at other occasions the aSRB may be determined as having the lowest priority among others aSRBs that are used for other types of data.
  • the priority for the aSRB may be configured by the second apparatus 120 and signaled to the first apparatus 110.
  • the priority for the aSRB may be determined via a configured priority value.
  • the second apparatus 120 may transmit RRC signaling to configure the LCH and LCG for the aSRB in the same way as for DRBs.
  • the priority for the aSRB may be determined via network control information.
  • the second apparatus 120 may transmit MAC control element (CE) or PDCP control packet data unit (PDU), to provide the currently used priority for the aSRB.
  • CE MAC control element
  • PDU packet data unit
  • the aSRB can be enabled in a specific or more tailored-to-purpose format.
  • the aSRB may include a nas-SRB for data that is transparent to the radio access network, but used to piggyback core network signalling e.g., towards NAS.
  • This can be one SRB that is commonly used for any NAS transport message, but may also enable differentiation of different NAS signaling types (e.g., nas-i-SRB, nas-ii-SRB, etc, where “i” indicates a NAS message type).
  • the aSRB may include a dSRB for data, dedicated, or deprioritized SRB, which may be an SRB with a lower priority than other SRBs.
  • the aSRB may include an ai-SRB for AI/ML model or model training data.
  • the aSRB may include an xSRB for extended reality service-related data, or any aSRB with data embedded according to the pre-configuration between the first apparatus 110 and the second apparatus 120.
  • the aSRB may include an e-SRB, which may be any aSRB with data embedded according to the pre-configuration between the first apparatus 110 and the second apparatus 120.
  • the first apparatus 110 determines (325) that the data is allowed to be transmitted on one of the at least one adjustable radio bearer. For example, determination (325) may be based on the obtained configuration. Alternatively, step 325 may denote that the first apparatus 110 determines that data to be transmitted is to be transmitted using said one of the at least one adjustable radio bearer. Such determination may be based on the configuration and/or preconfigured information at the first apparatus 110.
  • the first apparatus 110 receives, from the second apparatus 120 or other apparatus, the list of aSRBs and priorities for each of them. The first apparatus 110 then transmits data to the appropriate aSRB based on the given priority and the type of the data.
  • the first apparatus 110 may be configured which type(s) of data is allowed to be transmitted over an aSRB, or may have more than one aSRB, each with their own priority and its allowed type(s) of data.
  • the first apparatus 110 may then determine, based on the type of data that is currently pending for transmission, whether the data is allowed to be transmitted using the aSRB with a certain priority, e.g., whether the type of the data matches with the priority for the aSRB.
  • the second apparatus 120 may provide the criteria based on which the first apparatus 110 makes such a determination.
  • the second apparatus 120 may configure the first apparatus 110 which data can be conveyed on which aSRB.
  • the first apparatus 110 determines whether there is data pending for transmission on a radio bearer on a control plane, e.g., data to be transmitted using SRB. If the pending data requires an SRB for transmission, the first apparatus 110 may determine, based on the configuration, an aSRB for transmission of the data. In some example embodiments, the first apparatus 110 may determine an appropriate aSRB from the configured aSRB based on a type of the data that is pending for transmission and a mapping between types of data and the at least one adjustable radio bearer. In some example embodiments, the first apparatus 110 may determine to use the aSRB which matches the priorities given by the second apparatus 120.
  • the first apparatus 110 may obtain a mapping from a type of data to a priority for aSRB or a mapping from respective types of data to respective priorities of aSRBs. The first apparatus 110 may use the mapping to determine whether or which aSRB can be used for transmitting the current pending type of pending data.
  • the mapping from a type of data to a priority for aSRB or the mapping from respective types of data to respective priorities of aSRBs may be received from the second apparatus 120, or may be pre-configured or predefined at the first apparatus 110. That is, the second apparatus 120 configures the first apparatus 110 with which data goes to which aSRB and with which priority.
  • the second apparatus 120 may transmit (315) an UL grant to the first apparatus 110 for UL transmission. Upon receipt (320) of the UL grant, the first apparatus 110 determines an aSRB for transmitting the pending data.
  • the so-called “unified bearer” is to make DRBs agnostic to the location of the PDCP anchoring point.
  • a similar idea also applies to the aSRB.
  • the first apparatus 110 e.g., the terminal device
  • the first apparatus 110 only knows the (relative) priority for the aSRB, which is then pushed to the normal LCP process for scheduling.
  • the first apparatus 110 determines (330) the priority for the adjustable radio bearer to be used and apply the priority for the adjustable radio bearer in the LCP process.
  • the first apparatus 110 transmits (335), to the second apparatus 120, the data on the determined adjustable radio bearer according to a priority for the adjustable radio bearer.
  • the data on the adjustable radio bearer may be transmitted based on the LCP process.
  • a token bucket mechanism may be utilized to ensure the higher priority data is scheduled more than the lower priority data for transmission.
  • the second apparatus 120 receives (340), from the first apparatus 110, data on one of the at least one adjustable radio bearer, the data being transmitted by the first apparatus 110 according to a priority for the adjustable radio bearer.
  • the at least one priority for the at least one adjustable radio bearer may be adjusted to be lower than at least one priority for at least one DRB.
  • at least one priority for at least one of the plurality of aSRBs is lower than at least one priority for at least one DRB.
  • At least one priority for the at least one adjustable radio bearer is lower than at least one fixed priority for at least one SRB. That is, the SRB(s) with the fixed high priority may be maintained for use.
  • the at least one SRB with the fixed priority may include SRB 0 which is configured for request connection and has a first fixed priority, and/or SRB1 which is configured for setup connection and has a second fixed priority.
  • the first fixed priority for SRB 0 and the second fixed priority for SRB 1 are higher than priorities of DRBs.
  • the first fixed priority for SRB 0 and the second fixed priority for SRB 1 may also be higher than the priorities of the aSRBs.
  • a certain number of SRBs may be reversed as aSRBs, which may be adaptively configured as any of nas-SRB, d-SRB, ai-SRB, xSRB, e-SRB as mentioned above, and/or any other type of aSRB.
  • SRB 0 and SRB 1 which are mapped to LCH ID 0 and LCH ID 0, 4 SRBs may be reserved for aSRBs and are mapped to LCH ID 2 to LCH ID 5.
  • Table 1 in the following shows such an example. In this example, LCH IDs from 6 to the maximum LCH ID may be assigned to DRBs.
  • more than 4 SRBs or less than 4 SRBs may be reserved for aSRBs, and/or more than two SRBs may be configured with fixed priorities.
  • Table 1 Two SRBs fixed (SRBO, 1) and 4 SRBs reserved for aSRBs
  • the first apparatus 110 may obtain configuration for at least one or both of the following: SRBO having a first fixed priority, and SRB1 having a second fixed priority.
  • the first apparatus 110 may further obtain configuration for an aSRB having an adjustable priority.
  • the configurations may be received from the second apparatus.
  • the first apparatus 110 may, based on a type of data to be transmitted, determine, amongst SRBO, SRB1, and the adjustable signalling radio bearer, an SRB to use for transmitting the data.
  • the first apparatus 110 may utilize the determined SRB (e.g., SRBO, SRB1, or aSRB) to transmit the data to the second apparatus 120.
  • SRB e.g., SRBO, SRB1, or aSRB
  • the first fixed priority and/or second fixed priority may be preconfigured for the first apparatus 110 (e.g. via cellular specifications).
  • the adjustable priority may be determined as indicated in various examples herein.
  • first apparatus 110 determines to transmit the data using the aSRB, it may transmit the data using the aSRB with the associated priority.
  • the priority may depend on e.g. type of the data as for instance the aSRB may be suitable for transmitting multiple types of data with one or more different priorities).
  • aSRB there may not be SRBs with fixed priorities, and all the SRBs have adjustable priorities.
  • all SRBs may be considered as aSRB.
  • one or more aSRBs may be configured as dedicated SRB, for a certain type(s) of data and having higher priorities than other aSRBs.
  • a first SRB e.g., SRB 0, may be configured as an aSRB dedicated for a first type of data
  • a second SRB e.g., SRB 1
  • SRB 1 may be configured as an aSRB dedicated for a second type of data.
  • the first type of data may be more important than the second type of data, and thus SRB 0 may have a higher priority than that of the SRB 1.
  • SRB 0 may be dedicated for data used for very initial access or critical access
  • SRB 1 may be dedicated for data used for very initial access, critical access or security setup.
  • aSRB In addition to SRB 0 and SRB 1, there may be one or more other aSRBs, which may be determined with at least one priority lower than the priority for SRB 0 and/or the priority for SRB 1. In some example embodiments, a certain number of SRBs may be reversed as any of other aSRBs, which may be adaptively configured as any of nas-SRB, d-SRB, ai-SRB, xSRB, e-SRB as mentioned above, and/or any other type of aSRB. Table
  • LCH ID 0 may be assigned for SRB 0, which may be a d-SRB
  • LCH ID 1 may be assigned for SRB 1, which may be another d-SRB.
  • LCH IDs from 2 to an adjustable SRB maximum number may be assigned to other aSRB.
  • LCH IDs from the adjustable SRB maximum number plus one) to the maximum LCH ID may be assigned to DRBs. It would be appreciated that in other examples, more than two aSRBs may be configured with higher priorities for dedicated data.
  • the network side e.g., the second apparatus 120
  • an adaptive radio bearer in a form of DRB- SRB hybrid for cases where the data may not always have highest priority, while allowing network control over when the aSRB can still be transmitted with a high priority but without changing the normal LCP process.
  • hybrid radio bearer can enable the option of communication between the terminal device and the network device for sending data over radio without limitation to handle this as a subsequent bearer establishment (following certain bearer establishment over radio and at backbone network, such as SRBO/1/2).
  • the terminal side (e.g., the first apparatus 110) may also be configured which data is sent over the adjustable radio bearer, or may have more than one adjustable radio bearer, each with its own priority. This could allow more flexibility for the network control over uplink transmissions, as well as provide a “unified radio bearer”. In this case, data that are not useful to the network can wait for transmission, whereas data that can be useful to the network or to both the network and the terminal device (e.g., data that are used from both the network and the terminal device for training AI/ML models) can be transmitted with a higher priority.
  • different types of data can have their own adjustable radio bearers, with different priority levels.
  • the first apparatus 110 may use the one or more aSRBs, without receiving information from the second apparatus 120 to activate the aSRB(s).
  • the first apparatus 110 may rely on availability information about the one or more aSRBs.
  • FIG. 4 illustrates a signaling chart 400 for communication according to such example embodiments.
  • the first apparatus 110 obtains (410) a configuration for an aSRB.
  • the priority for the aSRB may be determined in any way as discussed above.
  • the second apparatus 110 determines (402) the priority for the aSRB and transmits (405) the configuration for the aSRB to the first apparatus 110
  • the configuration may at least indicate the priority for the aSRB.
  • the configuration for the aSRB may be obtained by the first apparatus 110 from other network entity, or the priority for the aSRB may be determined by the first apparatus 110.
  • the first apparatus 110 may not use the aSRB until receiving information from the second apparatus 120 to activate the aSRB.
  • the second apparatus 120 may perform (412) aSRB activation with the first apparatus 110 by transmitting availability information to indicate that the aSRB is activated.
  • the first apparatus 110 may determine that the configured aSRB is activated and then may use the aSRB for data transmission.
  • the availability information may have already been provided beforehand from the second apparatus 120 to the first apparatus (e.g., it could have been pre-configured), so no further signalling is needed from the second apparatus 120.
  • the second apparatus 120 may transmit (415) an UL grant for the first apparatus 110.
  • the first apparatus 110 may decide to perform data transmission on the UL grant.
  • the first apparatus 110 determines (425), based on the configuration, that the data is allowed to be transmitted on the aSRB.
  • the first apparatus 110 transmits (435), to the second apparatus 120, the data on the aSRB according to the priority for the aSRB.
  • the first apparatus 110 may determine (430) the priority for the aSRB to be used and apply the priority for the aSRB in the LCP process.
  • the priority for the aSRB may be explicitly configured by the second apparatus 120 in the configuration, or may be determined by the first apparatus 110 based on the type of data that it is transmitting.
  • the data may then be transmitted on the aSRB based on the LCP process.
  • the second apparatus 120 receives (440), from the first apparatus 110, the data on the aSRB.
  • the first apparatus 110 may report information for the second apparatus 120 to determine the configuration(s) for one or more aSRBs.
  • FIG. 5 illustrates a signaling chart 500 for communication according to such example embodiments of the present disclosure.
  • the first apparatus 110 obtains (520) a plurality of configurations for a plurality of aSRBs, a priority for an adjustable signalling radio bearer being adjustable based on at least one of signalling from the second apparatus, one or more characteristics of data to be transmitted, or one or more radio conditions between the first apparatus and the second apparatus.
  • a configuration for an aSRB indicates a priority for an adjustable signalling radio bearer.
  • the first apparatus 110 transmits (505), to the second apparatus 120, information indicating at least one type of data to be transmitted by the first apparatus 110 to the second apparatus 120.
  • the data to be transmitted by the first apparatus 110 may be classified into different types according to various classification criteria.
  • the data may include a type of data that is useful to the second apparatus 120, and a type of data that is not useful but is transparent for the second apparatus 120. Other types of data may be indicated by the first apparatus 110 to the second apparatus 120.
  • the second apparatus 120 receives (510) the information from the first apparatus 110 and determines (512) respective priorities for a plurality of aSRBs based at least in part on the at least one type of data to be transmitted from the first apparatus 110. In some example embodiments, the second apparatus 120 transmits (515), to the first apparatus 110, a plurality of configurations for the plurality of aSRBs, a configuration at least indicating a priority for an aSRB. In some example embodiments, the plurality of configurations may be transmitted to the first apparatus 110 from other network entity.
  • the first apparatus 110 determine (540), based on the plurality of configurations, a specific aSRB from the plurality of aSRBs for transmission of data.
  • the determined specific aSRB may sometimes be referred to as a first aSRB.
  • the first apparatus 110 may determine that the data is pending for transmission on an SRB in the control plane and then determine whether the data is allowed to be transmitted using an SRB. In accordance with a determination that the data is allowed to be transmitted on the SRB, the first apparatus 110 may determine, based on the plurality of configurations, the first Asrb from the plurality of aSRBs for transmission of the data.
  • the first apparatus 110 may determine (545) the priority for the determined aSRB to be used and apply the priority for the aSRB in the LCP process.
  • the priority for the aSRB may be explicitly configured by the second apparatus 120 in the configuration, or may be determined by the first apparatus 110 based on the type of data that it is transmitting.
  • the first apparatus 110 may determine one or more aSRBs for use without receiving information from the second apparatus 120 to indicate that the aSRB(s) is activate. In some example embodiments, the first apparatus 110 may not use the aSRB until receiving information from the second apparatus 120 to activate the aSRB. As illustrated in FIG. 5, the second apparatus 120 may perform (522) aSRB activation with the first apparatus 110 by transmitting availability information to indicate that the aSRB is activated. By receiving the availability information, the first apparatus 110 may determine that the configured aSRB is activated and then may use the aSRB for data transmission. In some example embodiments, the availability information may have already been provided beforehand from the second apparatus 120 to the first apparatus (e.g., it could have been pre-configured), so no further signalling is needed from the second apparatus 120.
  • the second apparatus 120 may transmit (530) an UL grant for the first apparatus 110.
  • the first apparatus 110 may decide to perform data transmission on the UL grant and determine an aSRB from the plurality of configured aSRBs for data transmission.
  • the first apparatus 110 transmits (550), to the second apparatus 120, the data on the determined aSRB according to the priority for the aSRB. For example, with the priority for the aSRB determined, the data may then be transmitted on the aSRB based on the LCP process.
  • the second apparatus 120 receives (555), from the first apparatus 110, the data on the aSRB.
  • FIG. 6 illustrates a flowchart of a method 600 implemented at a first apparatus according to some example embodiments of the present disclosure. For the purpose of discussion, the method 600 will be described from the perspective of the first apparatus 110 in FIG. 1.
  • the first apparatus 110 transmits, to a second apparatus, information indicating at least one type of data to be transmitted by the first apparatus to the second apparatus.
  • the first apparatus 110 obtains a plurality of configurations for a plurality of adjustable signalling radio bearers, a priority for an adjustable signalling radio bearer being adjustable based on at least one of signalling from the second apparatus, one or more characteristics of data to be transmitted, or one or more radio conditions between the first apparatus and the second apparatus.
  • the first apparatus 110 determines, based on the plurality of configurations, a first adjustable signalling radio bearer from the plurality of adjustable signalling radio bearers for transmission of data.
  • the first apparatus 110 transmits, to the second apparatus, the data on the first adjustable signalling radio bearer according to a first priority of the first adjustable signalling radio bearer.
  • the method 600 further comprises: in accordance with a determination that the data is pending for transmission on a signalling radio bearer, determining whether the data is allowed to be transmitted using an adjustable signalling radio bearer; and in accordance with a determination that the data is allowed to be transmitted on the adjustable signalling radio bearer, determining, based on the plurality of configurations, the first adjustable signalling radio bearer from the plurality of adjustable signalling radio bearers for transmission of the data.
  • the method 600 comprises: determining, based on a type of the data, the first adjustable signalling radio bearer from the plurality of adjustable signalling radio bearers for transmission of the data, or wherein the first apparatus is caused to: receiving, from the second apparatus, a mapping from types of data to respective priorities for the plurality of adjustable signalling radio bearers, and determining, based on the mapping, the first adjustable signalling radio bearer from the plurality of adjustable signalling radio bearers for transmission of the data.
  • the method 600 comprises: determining the first adjustable signalling radio bearer from the plurality of adjustable signalling radio bearers based on the plurality of configurations and a mapping between types of data and types of adjustable signalling radio bearers.
  • the method 600 further comprises: receiving, from the second apparatus, availability information indicating that at least one of the plurality of adjustable signalling radio bearers is activated; and in accordance with reception of the availability information, determining the first adjustable signalling radio bearer from the at least one activated adjustable signalling radio bearer.
  • the first apparatus is configured with at least one of signalling radio bearer 0 (SRB0) with a first fixed priority or signalling radio bearer 1 (SRB1) with a second fixed priority, the first fixed priority and the second fixed priority being higher than priorities of data radio bearers; and wherein respective priorities of the plurality of adjustable signalling radio bearers are lower than the at least one of the first fixed priority or the second fixed priority, and/or wherein at least one priority of at least one of the plurality of adjustable signalling radio bearers is lower than at least one priority of at least one data radio bearer.
  • SRB0 signalling radio bearer 0
  • SRB1 signalling radio bearer 1
  • respective priorities of the plurality of adjustable signalling radio bearers are lower than the at least one of the first fixed priority or the second fixed priority
  • at least one priority of at least one of the plurality of adjustable signalling radio bearers is lower than at least one priority of at least one data radio bearer.
  • the plurality of adjustable signalling radio bearers are each configured as one of signalling radio bearer 2 (SRB2) to signalling radio bearer5 (SRB5).
  • the plurality of adjustable signalling radio bearers is one of the following: signalling radio bearer 0 (SRB0) dedicated for a first type of data, signalling radio bearer 1 (SRB1) dedicated for a second type of data, or at least one further signalling radio bearer with at least one priority lower than a priority of SRB0 or a priority of SRB 1.
  • FIG. 7 shows a flowchart of an example method 700 implemented at a second apparatus 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 the second apparatus 120 in FIG. 1.
  • the second apparatus 120 receives, from a first apparatus, information indicating at least one type of data to be transmitted by the first apparatus to the second apparatus.
  • the second apparatus 120 transmits, to a first apparatus, a plurality of configurations for a plurality of adjustable signalling radio bearers, a priority for an adjustable signalling radio bearer being adjustable based on at least one of signalling from the second apparatus, one or more characteristics of data to be transmitted, or one or more radio conditions between the first apparatus and the second apparatus.
  • the plurality of configurations indicate respective priorities for the plurality of adjustable signalling radio bearer.
  • the second apparatus 120 receives, from the first apparatus, data on a first adjustable signalling radio bearer of the plurality of adjustable signalling radio bearers, the data being transmitted by the first apparatus according to a first priority of the first adjustable signalling radio bearer.
  • the method 700 further comprises: determining respective priorities of the plurality of adjustable signalling radio bearers based on at least one of the following: a type of embedded data, a termination point of the data, a configured priority value for the adjustable signalling radio bearer, whether the data is to be segmented or not, importance of the data to the second apparatus, a radio condition between the first apparatus and the second apparatus, a buffer status of data radio bearers at the first apparatus, a quality of service requirement of data radio bearers at the first apparatus, or networking control information, or a use case related to the data.
  • the method 700 further comprises: transmitting, to the first apparatus, a mapping from types of data to respective priorities for the plurality of adjustable signalling radio bearers.
  • the method 700 further comprises: transmitting, to the first apparatus, availability information indicating that at least one of the plurality of adjustable signalling radio bearers is activated.
  • a first apparatus capable of performing any of the method 600 may comprise means for performing the respective operations of the method 600.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the first apparatus may be implemented as or included in the first apparatus 110 in FIG. 1.
  • the first apparatus comprises means for transmitting, to a second apparatus, information indicating at least one type of data to be transmitted by the first apparatus to the second apparatus; means for obtaining a plurality of configurations for a plurality of adjustable signalling radio bearers, a priority for an adjustable signalling radio bearer being adjustable based on at least one of signalling from the second apparatus, one or more characteristics of data to be transmitted, or one or more radio conditions between the first apparatus and the second apparatus; means for determining, based on the plurality of configurations, a first adjustable signalling radio bearer from the plurality of adjustable signalling radio bearers for transmission of data; and means for transmitting, to the second apparatus, the data on the first adjustable signalling radio bearer according to a first priority of the first adjustable signalling radio bearer.
  • the plurality of configurations indicate respective priorities for the plurality of adjustable signalling radio bearer.
  • the first apparatus further comprises: means for, in accordance with a determination that the data is pending for transmission on a signalling radio bearer, determining whether the data is allowed to be transmitted using an adjustable signalling radio bearer; and means for in accordance with a determination that the data is allowed to be transmitted on the adjustable signalling radio bearer, determining, based on the plurality of configurations, the first adjustable signalling radio bearer from the plurality of adjustable signalling radio bearers for transmission of the data.
  • the first apparatus further comprises: means for determining, based on a type of the data, the first adjustable signalling radio bearer from the plurality of adjustable signalling radio bearers for transmission of the data, or wherein the first apparatus is caused to: means for receiving, from the second apparatus, a mapping from types of data to respective priorities for the plurality of adjustable signalling radio bearers, and means for determining, based on the mapping, the first adjustable signalling radio bearer from the plurality of adjustable signalling radio bearers for transmission of the data.
  • the first apparatus further comprises: means for determining the first adjustable signalling radio bearer from the plurality of adjustable signalling radio bearers based on the plurality of configurations and a mapping between types of data and types of adjustable signalling radio bearers.
  • the first apparatus further comprises: means for receiving, from the second apparatus, availability information indicating that at least one of the plurality of adjustable signalling radio bearers is activated; and means for in accordance with reception of the availability information, determining the first adjustable signalling radio bearer from the at least one activated adjustable signalling radio bearer.
  • the first apparatus is configured with at least one of signalling radio bearer 0 (SRBO) with a first fixed priority or signalling radio bearer 1 (SRB1) with a second fixed priority, the first fixed priority and the second fixed priority being higher than priorities of data radio bearers; and wherein respective priorities of the plurality of adjustable signalling radio bearers are lower than the at least one of the first fixed priority or the second fixed priority, and/or wherein at least one priority of at least one of the plurality of adjustable signalling radio bearers is lower than at least one priority of at least one data radio bearer.
  • SRBO signalling radio bearer 0
  • SRB1 signalling radio bearer 1
  • the plurality of adjustable signalling radio bearers are each configured as one of signalling radio bearer 2 (SRB2) to signalling radio bearer5 (SRB5).
  • the plurality of adjustable signalling radio bearers is one of the following: signalling radio bearer 0 (SRBO) dedicated for a first type of data, signalling radio bearer 1 (SRB1) dedicated for a second type of data, or at least one further signalling radio bearer with at least one priority lower than a priority of SRBO or a priority of SRB 1.
  • SRBO signalling radio bearer 0
  • SRB1 signalling radio bearer 1
  • the first apparatus further comprises means for performing other operations in some example embodiments of the method 600 or the first apparatus 110.
  • the means comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the performance of the first apparatus.
  • a second apparatus capable of performing any of the method 700 may comprise means for performing the respective operations of the method 700.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the second apparatus may be implemented as or included in the second apparatus 120 in FIG. 1.
  • the second apparatus comprises means for receiving, from a first apparatus, information indicating at least one type of data to be transmitted by the first apparatus to the second apparatus; means for transmitting, to a first apparatus, a plurality of configurations for a plurality of adjustable signalling radio bearers, a priority for an adjustable signalling radio bearer being adjustable based on at least one of signalling from the second apparatus, one or more characteristics of data to be transmitted, or one or more radio conditions between the first apparatus and the second apparatus; and means for receiving, from the first apparatus, data on a first adjustable signalling radio bearer of the plurality of adjustable signalling radio bearers, the data being transmitted by the first apparatus according to a first priority of the first adjustable signalling radio bearer.
  • the plurality of configurations indicate respective priorities for the plurality of adjustable signalling radio bearer.
  • the second apparatus further comprises: means for determining respective priorities of the plurality of adjustable signalling radio bearers based on at least one of the following: a type of embedded data, a termination point of the data, a configured priority value for the adjustable signalling radio bearer, whether the data is to be segmented or not, means for importance of the data to the second apparatus, a radio condition between the first apparatus and the second apparatus, a buffer status of data radio bearers at the first apparatus, a quality of service requirement of data radio bearers at the first apparatus, or means for networking control information, or a use case related to the data.
  • the second apparatus further comprises: means for transmitting, to the first apparatus, a mapping from types of data to respective priorities for the plurality of adjustable signalling radio bearers.
  • the second apparatus further comprises: means for transmitting, to the first apparatus, availability information indicating that at least one of the plurality of adjustable signalling radio bearers is activated. [0147] In some example embodiments, the second apparatus further comprises means for performing other operations in some example embodiments of the method 700 or the second apparatus 120. In some example embodiments, the means comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the performance of the second apparatus.
  • the communication module 840 is for bidirectional communications.
  • the communication module 840 has one or more communication interfaces to facilitate communication with one or more other modules or devices.
  • the communication interfaces may represent any interface that is necessary for communication with other network elements.
  • the communication module 840 may include at least one antenna.
  • 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.
  • the memory 820 may include one or more non-volatile memories and one or more volatile memories.
  • 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), an optical disk, a laser disk, and other magnetic storage and/or optical storage.
  • 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.
  • a computer program 830 includes computer executable instructions that are executed by the associated processor 810.
  • the instructions of the program 830 may include instructions for performing operations/acts of some example embodiments of the present disclosure.
  • the program 830 may be stored in the memory, e.g., the ROM 824.
  • the processor 810 may perform any suitable actions and processing by loading the program 830 into the RAM 822.
  • the example 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 FIG. 3 to FIG.7.
  • the example embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
  • 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 non-transitory storage medium, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like.
  • non-transitory 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).
  • FIG. 9 shows an example of the computer readable medium 900 which may be in form of CD, DVD or other optical storage disk.
  • the computer readable medium 900 has the program 830 stored thereon.
  • 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.
  • Some example embodiments of the present disclosure also provide at least one computer program product tangibly stored on a computer readable medium, such as a non- transitory computer readable medium.
  • the computer program product includes computerexecutable instructions, such as those included in program modules, being executed in a device on a target physical or virtual processor, to carry out any of the methods as described above.
  • 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.
  • Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages.
  • the program code 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 code, when executed by the processor or controller, cause the functions/operations specified in the flowcharts and/or block diagrams to be implemented.
  • 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.
  • the computer program code 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.
  • 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.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des exemples de modes de réalisation de la présente divulgation concernent la transmission de données sur une porteuse radio. Un procédé consiste à : transmettre, à un second appareil, des informations indiquant au moins un type de données à transmettre ; obtenir une pluralité de configurations pour une pluralité de porteuses radio de signalisation réglables, une priorité pour une porteuse radio de signalisation réglable étant réglable sur la base d'au moins un élément parmi : une signalisation provenant du second appareil, une ou plusieurs caractéristiques de données à transmettre, ou une ou plusieurs conditions radio entre le premier appareil et le second appareil ; déterminer, sur la base de la pluralité de configurations, une première porteuse radio de signalisation réglable parmi la pluralité de porteuses radio de signalisation réglables pour la transmission de données ; et transmettre, au second appareil, les données sur la première porteuse radio de signalisation réglable selon une première priorité de la première porteuse radio de signalisation réglable.
PCT/EP2024/076167 2023-09-28 2024-09-19 Transmission de données sur une porteuse radio Pending WO2025068003A1 (fr)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130294365A1 (en) * 2010-11-08 2013-11-07 Sca Ipla Holdings Inc. Mobile communications network device and method
EP2930993A1 (fr) * 2014-04-09 2015-10-14 Telefonaktiebolaget L M Ericsson (PUBL) Détermination de priorité pour la signalisation
US20200305220A1 (en) * 2016-03-31 2020-09-24 Nec Corporation Radio access network node, radio terminal, network node, and method therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130294365A1 (en) * 2010-11-08 2013-11-07 Sca Ipla Holdings Inc. Mobile communications network device and method
EP2930993A1 (fr) * 2014-04-09 2015-10-14 Telefonaktiebolaget L M Ericsson (PUBL) Détermination de priorité pour la signalisation
US20200305220A1 (en) * 2016-03-31 2020-09-24 Nec Corporation Radio access network node, radio terminal, network node, and method therefor

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