Devices and methods of communication
The communication device in A-IoT systems addresses incomplete data collection by transmitting availability information to network devices, improving A-IoT data delivery and network decision-making.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- NEC CORP
- Filing Date
- 2024-12-17
- Publication Date
- 2026-06-25
Smart Images

Figure CN2024139992_25062026_PF_FP_ABST
Abstract
Description
DEVICES AND METHODS OF COMMUNICATIONTECHNICAL FIELD
[0001] Embodiments of the present disclosure generally relate to the field of telecommunication, and in particular, to devices and methods of communication for ambient-Internet of things (A-IoT) .BACKGROUND
[0002] A-IoT communication is an emerging communication incorporating an A-IoT device into a cellular network communication. Currently, collection and reporting of data related to A-IoT communication have been discussed. However, solutions of the collection and reporting of the data related to A-IoT communication are still incomplete and need to be further developed.SUMMARY
[0003] In general, embodiments of the present disclosure provide methods, devices and computer storage media of communication for A-IoT.
[0004] In a first aspect, there is provided a communication device. The communication device comprises a processor. The processor is configured to cause the communication device to: in accordance with a determination that a condition is fulfilled, transmit, to a network device, first information indicating availability of first data related to a communication procedure between the communication device and a set of A-IoT devices, the condition comprising at least one of the following: a transmission of the first information is allowed; the communication device is in a first duration for which the transmission of the first information is allowed; the first information has not been transmitted to the network device since a first timing; at least part of the first data has not been transmitted to the network device since a second timing; the first data is updated; or location information associated with the communication device is updated.
[0005] In a second aspect, there is provided a network device. The network device comprises a processor. The processor is configured to cause the network device to: receive, from a communication device, first information indicating availability of first data related to a communication procedure between the communication device and a set of A-IoT devices; and transmit the first information to a further network device during a handover (HO) procedure.
[0006] In a third aspect, there is provided a method of communication at a communication device. The method comprises: in accordance with a determination that a condition is fulfilled, transmitting, to a network device, first information indicating availability of first data related to a communication procedure between the communication device and a set of A-IoT devices, the condition comprising at least one of the following: a transmission of the first information is allowed; the communication device is in a first duration for which the transmission of the first information is allowed; the first information has not been transmitted to the network device since a first timing; at least part of the first data has not been transmitted to the network device since a second timing; the first data is updated; or location information associated with the communication device is updated.
[0007] In a fourth aspect, there is provided a method of communication at a network device. The method comprises: receiving, from a communication device, first information indicating availability of first data related to a communication procedure between the communication device and a set of A-IoT devices; and transmitting the first information to a further network device during a HO procedure.
[0008] In a fifth aspect, there is provided a computer readable medium having instructions stored thereon. The instructions, when executed on at least one processor, cause the at least one processor to perform the method according to the third or fourth aspect of the present disclosure.
[0009] Other features of the present disclosure will become easily comprehensible through the following description.BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Through the more detailed description of some embodiments of the present disclosure in the accompanying drawings, the above and other objects, features and advantages of the present disclosure will become more apparent, wherein:
[0011] FIG. 1 illustrates an example communication network in which some embodiments of the present disclosure can be implemented;
[0012] FIG. 2 illustrates a signaling chart illustrating an example process of communication according to embodiments of the present disclosure;
[0013] FIG. 3 illustrates a flowchart of an example method of communication implemented at a communication device in accordance with some embodiments of the present disclosure;
[0014] FIG. 4 illustrates a flowchart of an example method of communication implemented at a network device in accordance with some embodiments of the present disclosure; and
[0015] FIG. 5 illustrates a simplified block diagram of a device that is suitable for implementing embodiments of the present disclosure.
[0016] Throughout the drawings, the same or similar reference numerals represent the same or similar element.DETAILED DESCRIPTION
[0017] Principle of the present disclosure will now be described with reference to some embodiments. It is to be understood that these embodiments are described only for the purpose of illustration and help those skilled in the art to understand and implement the present disclosure, without suggesting any limitations as to the scope of the disclosure. The disclosure described herein can be implemented in various manners other than the ones described below.
[0018] 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.
[0019] As used herein, the term ‘terminal device’ refers to any device having wireless or wired communication capabilities. Examples of the terminal device include, but not limited to, user equipment (UE) , personal computers, desktops, mobile phones, cellular phones, smart phones, personal digital assistants (PDAs) , portable computers, tablets, wearable devices, Internet of things (IoT) devices, ultra-reliable and low latency communications (URLLC) devices, Internet of everything (IoE) devices, machine type communication (MTC) devices, device on vehicle for V2X communication where X means pedestrian, vehicle, or infrastructure / network, devices for integrated access and backhaul (IAB) , small data transmission (SDT) , mobility, multicast and broadcast services (MBS) , positioning, dynamic / flexible duplex in commercial networks, reduced capability (RedCap) , space borne vehicles or air borne vehicles in non-terrestrial networks (NTN) including Satellites and high altitude platforms (HAPs) encompassing unmanned aircraft systems (UAS) , extended reality (XR) devices including different types of realities such as augmented reality (AR) , mixed reality (MR) and virtual reality (VR) , the unmanned aerial vehicle (UAV) commonly known as a drone which is an aircraft without any human pilot, devices on high speed train (HST) , or image capture devices such as digital cameras, sensors, gaming devices, music storage and playback appliances, or Internet appliances enabling wireless or wired Internet access and browsing and the like. The ‘terminal device’ can further has ‘multicast / broadcast’ feature, to support public safety and mission critical, V2X applications, transparent IPv4 / IPv6 multicast delivery, IPTV, smart TV, radio services, software delivery over wireless, group communications and IoT applications. It may also incorporate one or multiple subscriber identity module (SIM) as known as multi-SIM. The term ‘terminal device’ can be used interchangeably with a UE, a mobile station, a subscriber station, a mobile terminal, a user terminal or a wireless device.
[0020] The term ‘network device’ may refer to a core network (CN) device or a radio access network (RAN) device. The term ‘CN device’ refers to any device or entity that provides access and mobility management function (AMF) , network exposure function (NEF) , authentication server function (AUSF) , unified data management (UDM) , session management function (SMF) , user plane function (UPF) , a location management function (LMF) , etc. In other embodiments, the CN device may be any other suitable device or entity providing any other suitable functionalities. For example, the CN device may be an A-IoT management node.
[0021] As used herein, the term ‘RAN device’ refers to a device which is capable of providing or hosting a cell or coverage where terminal devices can communicate. Examples of a RAN device include, but not limited to, a satellite, an unmanned aerial systems (UAS) platform, a Node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a next generation NodeB (gNB) , a transmission reception point (TRP) , a remote radio unit (RRU) , a radio head (RH) , a remote radio head (RRH) , an IAB node, a low power node such as a femto node, a pico node, a reconfigurable intelligent surface (RIS) , and the like.
[0022] The terminal device or the network device may have artificial intelligence (AI) or machine learning (ML) capability. It generally includes a model which has been trained from numerous collected data for a specific function, and can be used to predict some information.
[0023] The terminal or network device may work on several frequency ranges, e.g. FR1 (410 MHz to 7125 MHz) , FR2 (24.25GHz to 71GHz) , frequency band larger than 100GHz as well as Tera Hertz (THz) . It can further work on licensed / unlicensed / shared spectrum. The terminal device may have more than one connections with the network devices under MR-DC application scenario. The terminal device or the network device can work on full duplex, flexible duplex and cross division duplex modes.
[0024] The network device may have the function of network energy saving, self-organizing networks (SON) / minimization of drive tests (MDT) . The terminal may have the function of power saving.
[0025] The embodiments of the present disclosure may be performed in test equipment, e.g. signal generator, signal analyzer, spectrum analyzer, network analyzer, test terminal device, test network device, channel emulator.
[0026] In one embodiment, the terminal device may be connected with a first network device and a second network device. One of the first network device and the second network device may be a master node and the other one may be a secondary node. The first network device and the second network device may use different radio access technologies (RATs) . In one embodiment, the first network device may be a first RAT device and the second network device may be a second RAT device. In one embodiment, the first RAT device is eNB and the second RAT device is gNB. Information related with different RATs may be transmitted to the terminal device from at least one of the first network device or the second network device. In one embodiment, information A may be transmitted to the terminal device from the first network device and information B may be transmitted to the terminal device from the second network device directly or via the first network device. In one embodiment, information related with configuration for the terminal device configured by the second network device may be transmitted from the second network device via the first network device. Information related with reconfiguration for the terminal device configured by the second network device may be transmitted to the terminal device from the second network device directly or via the first network device.
[0027] 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. The term ‘includes’ and its variants are to be read as open terms that mean ‘includes, but is not limited to. ’ The term ‘based on’ is to be read as ‘at least in part based on. ’ The term ‘one embodiment’ and ‘an embodiment’ are to be read as ‘at least one embodiment. ’ The term ‘another embodiment’ is to be read as ‘at least one other embodiment. ’ The terms ‘first, ’ ‘second, ’ and the like may refer to different or same objects. The term ‘and / or’ indicates that there may be three relationships. For example, A and / or B may indicate cases includes ‘only A’ , ‘both A and B’, and ‘only B’ . The term ‘at least one of the following items’ or a similar expression thereof refers to any combination of these items, including any combination of a single item or a plurality of items. For example, ‘at least one of A, B, or C’ may represent A, B, C, ‘A and B’ , ‘A and C’ , ‘B and C’ , or ‘A, B and C’ . The term ‘a set of’ may be interchangeably used with ‘one or more’ . Other definitions, explicit and implicit, may be included below.
[0028] In some examples, values, procedures, or apparatus are referred to as ‘best, ’ ‘lowest, ’ ‘highest, ’ ‘minimum, ’ ‘maximum, ’ or the like. It will be appreciated that such descriptions are intended to indicate that a selection among many used functional alternatives can be made, and such selections need not be better, smaller, higher, or otherwise preferable to other selections.
[0029] In the context of the present disclosure, the term ‘A-IoT device’ may be interchangeably used with ‘passive IoT’ or ‘A-IoT’ or ‘tag’ or ‘zero power device’ . The term ‘A-IoT device’ may refer to a device comprising an energy harvesting module and a backscattering module. The A-IoT device may receive an energy supply signal or command via the energy harvesting module and backscatter a signal via the backscattering module. Some example use cases of the A-IoT device are listed in Table 1 below. Table 1
[0030] In the context of the present disclosure, the term ‘command UE’ may refer to a terminal device transmitting a command to an A-IoT device to implement select, inventory or access (e.g., read and write) to the A-IoT device. The term ‘excitation UE’ may refer to a terminal device providing an excitation signal or energy to an A-IoT device. After receiving the excitation signal, the A-IoT device may generate an induced current, and then receive information and send information through energy obtained by the induced current. It is to be understood that the names ‘command UE’ and ‘excitation UE’ merely are examples, and any other suitable names are also feasible.
[0031] In the context of the present disclosure, the term ‘communication device’ herein may refer to an intermediate node between an A-IoT device and a network device. The term ‘a communication device’ may be interchangeably used with ‘an intermediate node’ or ‘a communication node’ herein. The communication device may be a relay, an IAB node, a terminal device, a repeater, a RAN device, etc. which is capable of A-IoT. The communication device may transfer A-IoT data and / or signaling between the network device and the A-IoT device. In some embodiments, the communication device may be a node providing excitation signal or energy to an A-IoT device (i.e., an energy providing node or an energy resource) . In some embodiments, the communication device may be command UE. In some embodiments, the communication device may be excitation UE.
[0032] In the context of the present disclosure, the term ‘A-IoT transmission’ or ‘A-IoT communication’ or ‘A-IoT procedure’ or ‘A-IoT service’ may refer to a communication procedure between an A-IoT device and a communication device. The term ‘A-IoT data’ may refer to a result of an A-IoT service associated with a communication procedure between an A-IoT device and a communication device. The term ‘a range’ or ‘a predefined range’ may be determined by at least one of a lower bound value or a higher bound value, e.g., larger than or equal to the lower bound value, or smaller than or equal to the higher bound value, or between the lower bound value and the higher bound value.
[0033] In the context of the present disclosure, the term ‘cell quality’ or ‘channel condition’ may be determined based on a measurement on a downlink reference signal. Channel condition information may comprise at least one of reference signal receiving power (RSRP) , reference signal receiving quality (RSRQ) , signal to noise ratio (SNR) , or signal to interference plus noise ratio (SINR) . In some embodiments, the channel condition information may comprise at least one of a number of an out-of-sync indication or a number of an in-sync indication. In some embodiments, the channel condition information may comprise at least one of round trip time (RTT) or propagation delay. In some embodiments, the channel condition information may comprise a distance between a location of the terminal device 110 and a reference location. It is to be understood that the channel condition information may comprise any combination of the above information and any other suitable information.
[0034] For an A-IoT service between a communication device and one or more A-IoT devices, the communication device may need to deliver (i.e., provide) a result (i.e., A-IoT data) of the A-IoT service to a network device after collecting corresponding data from the one or more A-IoT devices. In some scenarios, delivery of the A-IoT data may be in the same cell as a cell in which the A-IoT data is collected. In some scenarios, due to mobility, the communication device may deliver the A-IoT data in a cell other than a cell in which the A-IoT data is collected. For example, the communication device may deliver the A-IoT data in a cell which does not support the A-IoT service. Thus, implementations of A-IoT data delivery need to be further developed.
[0035] Embodiments of the present disclosure provide solutions of communication for A-IoT data delivery so as to enhance A-IoT communication. In one aspect, in accordance with a determination that a condition is fulfilled, a communication device may transmit, to a network device, information (for convenience, also referred to as first information or availability information herein) indicating availability of data (i.e., for convenience, also referred to as first data or A-IoT data herein) related to a communication procedure between the communication device and a set of A-IoT devices. The condition may comprise at least one of the following: a transmission of the first information is allowed; the communication device is in a first duration for which the transmission of the first information is allowed; the first information has not been transmitted to the network device since a first timing; at least part of the first data has not been transmitted to the network device since a second timing; the first data is updated; or location information associated with the communication device is updated. In this way, information of availability of A-IoT data may be indicated to a network (NW) , and NW decision on retrieval of the A-IoT data may be facilitated.
[0036] In another aspect, upon reception of the first information from the communication node, the network device may transmit the first information to a further network device during a HO procedure. In this way, information of availability of A-IoT data may be delivered between network devices, and NW decision on retrieval of the A-IoT data may also be facilitated.
[0037] Principles and implementations of the present disclosure will be described in detail below with reference to figures.EXAMPLE OF COMMUNICATION NETWORK
[0038] FIG. 1 illustrates a schematic diagram of an example communication network 100 in which some embodiments of the present disclosure can be implemented. As shown in FIG. 1, the communication network 100 may include terminal devices 110 and 111 and a RAN device 120. In some embodiments, the RAN device 120 may provide one or more serving cells (not shown) to serve the terminal devices 110 and 111.
[0039] As shown in FIG. 1, the communication network 100 may further include one or more A-IoT devices 130 (i.e., a set of A-IoT devices) . In some embodiments, the RAN device 120 and each of the one or more A-IoT devices 130 may communicate with each other. In some embodiments, one of the terminal devices 110 and 111 and each of the one or more A-IoT devices 130 may communicate with each other. In some embodiments, each of the one or more A-IoT devices 130 may communicate with one of the terminal devices 110 and 111 in a forward link (FL) , and may communicate with the RAN device 120 in a backward link (BL) . In some embodiments, each of the one or more A-IoT devices 130 may communicate with the RAN device 120 in a FL, and may communicate with one of the terminal devices 110 and 111 in a BL. In the context of the present disclosure, the term ‘FL’ may refer to a communication link terminated at A-IoT devices, and may also be referred to as downlink (DL) , mobile terminated (MT) , or R2D. The term ‘BL’ may refer to a communication link originated at A-IoT devices, and may also be referred to as uplink (UL) , mobile originated (MO) , or D2R.
[0040] As shown in FIG. 1, the communication network 100 may further include a CN device 140 and an A-IoT server 150. In some scenarios, each of the one or more A-IoT devices 130 may communicate with the A-IoT server 150 via a cellular network comprising the terminal device 110 and / or 111, and the RAN device 120 and the CN device 140.
[0041] It is to be understood that the number of devices in FIG. 1 is given for the purpose of illustration without suggesting any limitations to the present disclosure. The communication network 100 may include any suitable number of RAN devices and / or terminal devices and / or A-IoT devices and / or CN devices and / or A-IoT servers adapted for implementing implementations of the present disclosure.
[0042] The terminal device 110 may communicate with the RAN device 120 via a Uu interface. The RAN device 120 may communicate with the CN device 140 via an Ng interface. The communications in the communication network 100 may conform to any suitable standards including, but not limited to, global system for mobile communications (GSM) , long term evolution (LTE) , LTE-evolution, LTE-advanced (LTE-A) , new radio (NR) , wideband code division multiple access (WCDMA) , code division multiple access (CDMA) , GSM EDGE radio access network (GERAN) , machine type communication (MTC) and the like. The embodiments of the present disclosure may be performed according to any generation communication protocols either currently known or to be developed in the future. Examples of the communication protocols include, 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, 5.5G, 5G-advanced networks, or the sixth generation (6G) networks.
[0043] Embodiments of the present disclosure provide solutions of communication to enhance A-IoT data delivery. Detailed description will be made with reference to FIG. 2 below.EXAMPLE IMPLEMENTATION OF A-IOT DATA DELIVERY
[0044] FIG. 2 illustrates a signaling chart illustrating an example process 200 of communication according to embodiments of the present disclosure. For the purpose of discussion, the process 200 will be described with reference to FIG. 1. The process 200 may involve an A-IoT device 201, a communication device 202, and network devices 203 and 204. The A-IoT device 201 may be any of the one or more A-IoT devices 130 as illustrated in FIG. 1. The communication device 202 may be the terminal device 110 or 111 or the RAN device 120. The network device 203 may be the RAN device 120 or the CN device 140 or A-IoT server 150 as illustrated in FIG. 1. The network device 204 may be another RAN device or CN device or A-IoT server which is not shown in FIG. 1.
[0045] It is to be understood that the steps and the order of the steps in FIG. 2 are merely for illustration, and not for limitation. For example, the order of the steps may be changed. Some of the steps may be omitted or any other suitable additional steps may be added.
[0046] As shown in FIG. 2, at step 210, the communication device 202 may determine first information (i.e., availability information) indicating availability of first data (i.e., A-IoT data) related to a communication procedure between the communication device 202 and a set of A-IoT devices. The set of A-IoT devices may comprise one or more A-IoT devices. For convenience, the following description will be given by taking one A-IoT device 201 as an example of the set of A-IoT devices.
[0047] In some embodiments, the first information may comprise an indication indicating that the first data is available. That is, the first information may indicate there is available A-IoT data.
[0048] In some embodiments, the first information may comprise a size of the first data. That is, the first information may comprise a size of available A-IoT data. In some embodiments, the size of the first size may be a size of potential first data, or an estimated size of the first data. In some embodiments, the first information may comprise an approximate number of target A-IoT devices of the communication procedure.
[0049] In some embodiments, the first information may comprise identity (ID) information associated with the network device 203. In some embodiments, the ID information associated with the network device 203 may comprise an ID of the network device 203. In some embodiments, the ID information associated with the network device 203 may comprise an ID of the network device 203 under which the first data is collected. In some embodiments, the ID information associated with the network device 203 may comprise an ID of a cell of the network device 203 in which the first data is collected. It is to be noted that any combinations of the above IDs may also be feasible.
[0050] In some embodiments, the first information may comprise ID information associated with the communication procedure. In some embodiments, the ID information associated with the communication procedure may comprise a session ID associated with the first data. The session ID identifies an A-IoT service request from CN. In some embodiments, the session ID may be allocated by CN. In some embodiments, the communication procedure may be an inventory initiated by RAN e.g., an assistance to a command-only procedure. In that case, the session ID identifies the communication procedure associated with the inventory initiated by RAN. In some embodiments, the communication procedure may be a further A-IoT service, e.g., a command-only procedure.
[0051] In some embodiments, the ID information associated with the communication procedure may comprise a transaction ID associated with the first data. The transaction ID identifies an A-IoT procedure initiated by the communication device 202. In some embodiments, the transaction ID may be allocated by RAN.
[0052] In some embodiments, the first information may comprise an indication indicating whether there is an ongoing communication procedure. In other words, the first information may indicate whether there is an ongoing A-IoT service.
[0053] In some embodiments, the first information may comprise an indication indicating that the communication procedure is finished or completed. In other words, the first information may indicate that an associated A-IoT service is finished or completed.
[0054] In some embodiments, the first information may comprise the location of the communication device 202. In other words, the first information may comprise the location of the communication device 202 where the first data is collected.
[0055] In some embodiments, the first information may further comprise at least one of: a service type of the communication procedure, a command type (e.g., inventory / read / write / disable) of the communication procedure, or information of whether the communication procedure is targeted for one or more than one A-IoT devices.
[0056] It is to be noted that the first information may comprise any combinations of the above information and any other suitable information.
[0057] In some embodiments, the communication device 202 may determine the first information by itself. In some embodiments, the communication device 202 may be indicated by an upper layer of the communication device 202. In some embodiments, the communication device 202 may obtain the first information from the set of A-IoT devices (e.g., the A-IoT device 201) . For example, in device-originated autonomous (DO-A) cases, the communication device 202 may collect the first information from the set of A-IoT devices and then forward the first information to the network device 203. In these cases, the first information implies there’s device originated data to be transmitted. Based on the first information, the network device 203 may further initiate an A-IoT procedure / allocate resources for an A-IoT service.
[0058] In some embodiments, the communication device 202 may transmit, to the A-IoT device 201, information (for convenience, also referred to third information or trigger information herein) used for triggering the transmission of the first information. In some embodiments, the third information may indicate one or more resources for transmitting the first information. In some embodiments, the third information may be a reference signal. Based on reception of the third information, the A-IoT device 201 may transmit the first information indicating the availability of the first data to the communication device 202.
[0059] In some embodiments, with reference to step 211, the communication device 202 may receive, from the network device 203, a configuration for the transmission of the third information.
[0060] In some embodiments, the configuration may comprise a periodicity of the transmission of the third information. In some embodiments, periodicities may be supported depending on a subcarrier spacing (SCS) configured for the communication device 202.
[0061] In some embodiments, the configuration may comprise a time offset for determining a start of a time domain resource for the transmission of the third information. In some embodiments, the time offset may be an offset related to a time reference system frame number (SFN) .
[0062] In some embodiments, the configuration may comprise the time reference SFN for determining the time offset. The time reference SFN indicates a SFN used for determination of the time offset of the time domain resource.
[0063] In some embodiments, the configuration may comprise a time reference hyper system frame number (H-SFN) for determining the time offset. The time reference H-SFN indicates a H-SFN used for determination of the time offset of the time domain resource. In some embodiments, the communication device 202 may use the closest H-SFN with an indicated number preceding the reception of the configuration.
[0064] In some embodiments, the configuration may comprise a set of synchronization signal and physical broadcast channel blocks (SSBs) for the transmission of the third information. The set of SSBs may be a SSB subset for a mapping between SSBs and trigger information (SSBs to trigger information mapping within one configuration) . For example, the first / leftmost bit corresponds to synchronization signal (SS) / physical broadcast channel (PBCH) block index 0, the second bit corresponds to SS / PBCH block index 1, and so on. Value 0 in a bitmap indicates that the corresponding SS / PBCH block is not included in the SSB subset while value 1 indicates that the corresponding SS / PBCH block is included in the SSB subset. If this field is absent, the communication device 202 may assume that the SSB subset includes all actually transmitted SSBs.
[0065] In some embodiments, the configuration may comprise frequency domain allocation for the transmission of the third information. The frequency domain allocation indicates frequency domain resource allocation.
[0066] It is to be noted that any combinations of the above configurations may also be feasible.
[0067] With reference to step 212, the communication device 202 may transmit the third information to the A-IoT device 201 based on the configuration. In some embodiments, the transmission of the third information may be periodical. It is to be noted that the step 211 and 212 may be optional.
[0068] With reference to step 213, the A-IoT device 201 may transmit the first information to the communication device 202. In some embodiments, the A-IoT device 201 may transmit the first information to the communication device 202 in response to receiving the third information from the communication device 202. In some embodiments, the A-IoT device 201 may periodically report the first information to the communication device 202.
[0069] Continuing to refer to FIG. 2, at step 220, the communication device 202 may transmit the first information to the network device 203. In some embodiments, the communication device 202 may be configured to inform the network device 203 of the availability of the first data, e.g., in an existing procedure or a dedicated procedure.
[0070] In some embodiments, the communication device 202 may inform the network device 203 of the availability of the first data via a radio resource control (RRC) message, a medium access control (MAC) control element (CE) or downlink control information (DCI) .
[0071] In some embodiments, the communication device 202 may transmit the first information during a RRC connection establishment. For example, the communication device 202 may include the first information in a RRC setup complete message. It is to be noted that any other suitable messages may also be feasible.
[0072] In some embodiments, the communication device 202 may transmit the first information during a RRC reconfiguration. For example, the communication device 202 may include the first information in a RRC reconfiguration complete message. It is to be noted that any other suitable messages may also be feasible.
[0073] In some embodiments, the communication device 202 may transmit the first information during a RRC connection re-establishment. For example, the communication device 202 may include the first information in a RRC re-establishment complete message. It is to be noted that any other suitable messages may also be feasible.
[0074] In some embodiments, the communication device 202 may transmit the first information during a RRC connection resume. For example, the communication device 202 may include the first information in a RRC resume complete message. It is to be noted that any other suitable messages may also be feasible.
[0075] In some embodiments, the communication device 202 may transmit the first information during a user equipment assistance information (UAI) reporting. For example, the communication device 202 may include the first information in a UE assistance information message. It is to be noted that any other suitable messages may also be feasible.
[0076] In some embodiments, contents of the first information indicating the availability of the first data may be determined by upper layers when the above corresponding procedure of transmitting the first information is initiated.
[0077] In some embodiments, upon a condition is fulfilled, the communication device 202 may transmit the first information to the network device 203. The condition is used for triggering or including a transmission or report of availability information (i.e., the first information) of A-IoT data.
[0078] In some embodiments, the condition to trigger the transmission of the first information may comprise that the transmission of the first information is allowed. That is, if the transmission of the first information is allowed, the communication device 202 may transmit the first information to the network device 203.
[0079] In some embodiments, the communication device 202 may determine that the transmission of the first information is allowed based on capability of the communication device 202. In some embodiments, if the communication device 202 is capable to indicate the availability of the first data or supports indicating the availability of the first data, the communication device 202 may determine that the transmission of the first information is allowed. In some embodiments, if the communication device 202 is capable to transmit the first data or supports transmission of the first data, the communication device 202 may determine that the transmission of the first information is allowed. In some embodiments, if the communication device 202 is configured to indicate the availability of the first data, the communication device 202 may determine that the transmission of the first information is allowed. In some embodiments, if the communication device 202 is configured to indicate the availability of the first data in a first cell which is not a cell in which the communication procedure is performed or the first data is collected, the communication device 202 may determine that the transmission of the first information is allowed. In some embodiments, if the communication device 202 is configured to transmit the first data in the first cell which is not a cell in which the communication procedure is performed or the first data is collected, the communication device 202 may determine that the transmission of the first information is allowed.
[0080] In some embodiments, the communication device 202 may determine that the transmission of the first information is allowed based on capability of the network device 203. In some embodiments, if the network device 203 supports the indicating of the availability of the first data, the communication device 202 may determine that the transmission of the first information is allowed. In some embodiments, if a primary cell (PCell) or special cell (SpCell) (i.e., the current cell of the network device 203) supports the indicating of the availability of the first data, the communication device 202 may determine that the transmission of the first information is allowed. In some embodiments, if the network device 203 supports the transmission of the first data, the communication device 202 may determine that the transmission of the first information is allowed. In some embodiments, if PCell or SpCell (i.e., the current cell of the network device 203) supports the transmission of the first data, the communication device 202 may determine that the transmission of the first information is allowed. In some embodiments, if the network device 203 supports indicating the availability of the first data in a first cell which is not a cell in which the communication procedure is performed or the first data is collected, the communication device 202 may determine that the transmission of the first information is allowed. In some embodiments, if the network device 203 supports the transmission of the first data in a first cell which is not a cell in which the communication procedure is performed or the first data is collected, the communication device 202 may determine that the transmission of the first information is allowed.
[0081] In some embodiments, the communication device 202 may determine that the transmission of the first information is allowed based on both capability of the communication device 202 and capability of the network device 203. It is to be understood that any combinations of the above capabilities of the communication device 202 and the network device 203 may also be feasible.
[0082] In some embodiments, the condition to trigger the transmission of the first information may comprise that the communication device 202 is in a duration (for convenience, also referred to a first duration or an allowed duration herein) for which the transmission of the first information is allowed. That is, if the communication device 202 is in the first duration, the communication device 202 may transmit the first information to the network device 203. In other words, the condition to trigger the transmission of the first information may comprise that the communication device 202 is not in a prohibit duration for which the transmission of the first information is prohibited.
[0083] In some embodiments, if a timer is not running, the communication device 202 may determine that the communication device 202 is in the first duration. This timer may also be called as a prohibit timer (the running of the timer implies a prohibit duration) . In some embodiments, if the first information is transmitted, the communication device 202 may start the prohibit timer. In some embodiments, if the prohibit timer is running, the communication device 202 may skip a transmission of another information (also referred to as second information herein) indicating the availability of the first data. With the prohibit timer, a signaling overhead caused by transmitting availability information may be avoided.
[0084] In some embodiments, the condition to trigger the transmission of the first information may comprise that the first information has not been transmitted to the network device 203 since a timing (for convenience, also referred to as a first timing herein) . That is, if the first information has not been transmitted to the network device 203 since the first timing, the communication device 202 may transmit the first information to the network device 203.
[0085] In some embodiments, the first timing may comprise a timing in which the communication device 202 is configured to indicate the availability of the first data. In other words, if the communication device 202 has not transmitted the first information since the communication device 202 is configured to inform the network device 203 of the availability of the first data, the communication device 202 may transmit the first information to the network device 203.
[0086] In some embodiments, the first timing may comprise a timing in which the communication procedure is initiated. In other words, if the communication device 202 has not transmitted the first information since the communication procedure is initiated, the communication device 202 may transmit the first information to the network device 203.
[0087] In some embodiments, the first timing may comprise a timing in which the communication procedure is finished. In other words, if the communication device 202 has not transmitted the first information since the communication procedure is finished, the communication device 202 may transmit the first information to the network device 203.
[0088] In some embodiments, the first timing may comprise a timing in which the communication device 202 enters a connected state (e.g., a RRC connected state) last time. In other words, if the communication device 202 has not transmitted the first information since the communication device 202 enters the connected state last time (last entering a connected state) , the communication device 202 may transmit the first information to the network device 203.
[0089] In some embodiments, the first timing may comprise a timing in which the communication device 202 camps on a cell of the network device 203. In other words, if the communication device 202 has not transmitted the first information since the communication device 202 camps on the current cell, the communication device 202 may transmit the first information to the network device 203.
[0090] In some embodiments, the first timing may comprise a timing in which the communication device 202 is connected to the network device 203. In other words, if the communication device 202 has not transmitted the first information since the communication device 202 is connected to the network device 203, the communication device 202 may transmit the first information to the network device 203. In some embodiments, if the communication device 202 has not transmitted the first information since the communication device 202 is connected to the current cell of the network device 203, the communication device 202 may transmit the first information to the network device 203.
[0091] In some embodiments, the condition to trigger the transmission of the first information may comprise that the first information has not been transmitted to the network device 203 for a pre-defined time duration since last transmitting the first information. In some embodiments, the pre-defined time duration is configured by the network device 203. In other words, if the communication device 202 has not transmitted the first information for a pre-defined time duration since the communication device 202 last transmitting the first information, the communication device 202 may transmit the first information to the network device 203. That is, the communication device 202 may transmit the first information to the network device 203 for at least every pre-defined time duration. In some embodiments, the condition to trigger the transmission of the first information may comprise that at least part of the first data has not been transmitted to the network device 203. In some embodiments, the condition to trigger the transmission of the first information may comprise that at least part of the first data has not been transmitted to the network device 203 since a timing (for convenience, also referred to as a second timing herein) . That is, if the at least part of the first data has not been transmitted to the network device 203 since the second timing, the communication device 202 may transmit the first information to the network device 203.
[0092] In some embodiments, the second timing may comprise a timing in which the communication device 202 is configured to indicate the availability of the first data. In other words, if the at least part of the first data has not been transmitted to the network device 203 since the communication device 202 is configured to inform the network device 203 of the availability of the first data, the communication device 202 may transmit the first information to the network device 203.
[0093] In some embodiments, the second timing may comprise a timing in which the communication procedure is initiated. In other words, if the at least part of the first data has not been transmitted to the network device 203 since the communication procedure is initiated, the communication device 202 may transmit the first information to the network device 203.
[0094] In some embodiments, the second timing may comprise a timing in which the communication procedure is finished. In other words, if the at least part of the first data has not been transmitted to the network device 203 since the communication procedure is finished, the communication device 202 may transmit the first information to the network device 203.
[0095] In some embodiments, the second timing may comprise a timing in which the communication device 202 enters a connected state (e.g., a RRC connected state) last time (last entering a connected state) . In other words, if the at least part of the first data has not been transmitted to the network device 203 since the communication device 202 enters the connected state last time, the communication device 202 may transmit the first information to the network device 203.
[0096] In some embodiments, the second timing may comprise a timing in which the communication device 202 camps on a cell of the network device 203. In other words, if the at least part of the first data has not been transmitted to the network device 203 since the communication device 202 camps on the current cell, the communication device 202 may transmit the first information to the network device 203.
[0097] In some embodiments, the second timing may comprise a timing in which the communication device 202 is connected to the network device 203. In other words, if the at least part of the first data has not been transmitted to the network device 203 since the communication device 202 is connected to the network device 203, the communication device 202 may transmit the first information to the network device 203. In some embodiments, if the at least part of the first data has not been transmitted to the network device 203 since the communication device 202 is connected to the current cell of the network device 203, the communication device 202 may transmit the first information to the network device 203.
[0098] In some embodiments, if there is A-IoT data which has not been provided previously, the communication device 202 may transmit the first information to the network device 203. For example, if A-IoT data identified by a session ID has not been provided, the communication device 202 may transmit the first information to the network device 203. In another example, if A-IoT data identified by a session ID, which has not been indicated or provided previously, becomes available, the communication device 202 may transmit the first information to the network device 203. In still another example, if the A-IoT data is associated with a service request from CN for which a result has not been provided, the communication device 202 may transmit the first information to the network device 203.
[0099] In some embodiments, the condition to trigger the transmission of the first information may comprise that the first data is updated. That is, if the first data is updated, the communication device 202 may transmit the first information to the network device 203.
[0100] In some embodiments, if the first data is available or updated first data is available, the communication device 202 may determine that the first data is updated. In some embodiments, whether the first data is available or updated first data is available may be indicated by upper layers.
[0101] In some embodiments, if the first data mapped to at least one radio bearer configured for the transmission of the first information is available, the communication device 202 may determine that the first data is updated. In that case, the communication device 202 may be configured to transmit the first information for a set of radio bearers. In other words, only the available or the update of the first data mapped to the configured radio bearer (s) may trigger the transmission of the first information.
[0102] In some embodiments, if the first data mapped to a radio bearer not configured for a SDT becomes available during the SDT (i.e., while a SDT procedure is ongoing) , the communication device 202 may determine that the first data is updated.
[0103] In some embodiments, if a size of the first data is larger than or equal to a threshold size, the communication device 202 may determine that the first data is updated. In other words, if the size of the first data is in a predefined range, the communication device 202 may determine that the first data is updated. In some embodiments, the threshold size may be configured by the network device 203. In some embodiments, the size of the first data available or to be provided may be indicated by upper layers.
[0104] In some embodiments, if a change of information related to the first data is larger than or equal to a threshold change, the communication device 202 may determine that the first data is updated. In some embodiments, the information related to the first data may comprise the size of the first data. In some embodiments, the information related to the first data may comprise time information associated with the first data. In some embodiments, the information related to the first data may comprise location information associated with the first data.
[0105] In some embodiments, the condition to trigger the transmission of the first information may comprise that location information associated with the communication device 202 is updated. That is, if the location information associated with the communication device 202 is updated, the communication device 202 may transmit the first information to the network device 203. In some embodiments, if a change of a location of the communication device 202 is larger than or equal to a threshold change, the communication device 202 may determine that the location information associated with the communication device 202 is updated.
[0106] For illustration, an example procedure of providing the availability information via a RRC message may be described as below. 1> set the content of the RRC message as follows: 2> if at least one of the conditions of indicating the A-IoT data available information is fulfilled: 3> include A-IoT data available information.
[0107] For illustration, an example procedure of providing the availability information via UAI may be described as below. 1> if configured to provide assistance information: 2> if at least one of the conditions of indicating the A-IoT data available information has been detected and the prohibit timer is not running; or 2> if the current assistance information is different from the one indicated in the last transmission of the UEAssistanceInformation message and the prohibit timer is not running: 3> start timer with the timer value set to the ProhibitTimer. 3> initiate transmission of the UEAssistanceInformation message to provide assistance information.
[0108] In some embodiments, if the first information has been transmitted by a RRC reconfiguration complete message, the communication device 202 may exclude the first information in a UAI message that is triggered due to a last 1 second mechanism before the communication device 202 receives a reconfiguration with sync. In this way, unnecessary signaling overhead may be reduced.
[0109] In some embodiments, if there is an ongoing SDT procedure, and an uplink grant is able to accommodate data (for convenience, also referred to as second data herein) associated with the SDT procedure but is insufficient to additionally accommodate the first information, the communication device 202 may cancel the transmission of the first information. In this way, impact of an availability information transmission on SDT may be considered.
[0110] Continuing to refer to FIG. 2, at step 230, the communication device 202 may receive, from the network device 203, a request for A-IoT data (i.e., the first data) .
[0111] In some embodiments, the request may comprise index or ID information associated with the requested A-IoT data. In some embodiments, the ID information associated with the first data may comprise a session ID of the requested A-IoT data. In some embodiments, the ID information associated with the first data may comprise a transaction ID of the requested A-IoT data.
[0112] In some embodiments, the request may comprise size information of the requested A-IoT data. In some embodiments, the size information of the requested A-IoT data may comprise the minimum or maximum amount of the A-IoT data to be reported. In some embodiments, the size information of the requested A-IoT data may comprise the minimum or maximum number of the A-IoT devices to be reported (e.g., for inventory results) .
[0113] In some embodiments, the request may comprise time information related to collection of the requested A-IoT data. In some embodiments, the time information may indicate reporting A-IoT data collected in a duration.
[0114] In some embodiments, the request may comprise location information related to collection of the requested A-IoT data. In some embodiments, the location information may indicate reporting A-IoT data collected in an area.
[0115] In some embodiments, the request may comprise location information associated with the communication device 202.
[0116] It is to be noted that the request may comprise any combinations of the above information.
[0117] With reference to FIG. 2, at step 240, the communication device 202 may transmit, to the network device 203, a response comprising the first data. In some embodiments, the communication device 202 may include corresponding A-IoT data according to the request.
[0118] In some embodiments, the response may further comprise ID information of associated with the network device 203 under which the first data is collected. In some embodiments, the response may further comprise ID information of associated with a cell of the network device 203 under which the first data is collected. In some embodiments, the response may further comprise an index of the request.
[0119] In some embodiments, the response may further comprise ID information associated with the communication procedure. In some embodiments, the ID information associated with the communication procedure may comprise at least one of the following: a session ID associated with the first data; or a transaction ID associated with the first data.
[0120] In some embodiments, the response may further comprise an indication indicating whether there is an ongoing communication procedure or A-IoT service.
[0121] It is to be noted that the response may comprise any combinations of the above information.
[0122] In some embodiments, if there is an ongoing SDT procedure, and an uplink grant is able to accommodate data the second associated with the SDT procedure but is insufficient to additionally accommodate the first data (e.g., pending data from a data radio bearer (DRB) for A-IoT) , the communication device 202 may cancel the transmission of the first data. In this case, UAI for A-IoT data availability may be initiated to indicate NW of the availability of A-IoT data. Retrieval of the A-IoT data may up to NW. In this way, impact of an A-IoT data transmission on SDT may be considered.
[0123] In some scenarios, a communication device in an idle or inactive state (e.g., RRC idle or inactive state) may reselect to a cell which does not support an A-IoT service. In case of the communication device has initiated an A-IoT service, or has A-IoT data to be reported, the communication device may give a lower reselection probability for a cell which does not support an A-IoT data availability indicating or A-IoT data providing or A-IoT service.
[0124] In some embodiments, the communication device 202 may determine an offset for a cell based on whether the cell supports the indicating of the availability of the first data, or whether the cell supports the transmission of the first data, or whether the cell supports the communication procedure. The communication device 202 may perform a cell selection or reselection based on the offset.
[0125] In some embodiments, in case of the communication device 202 has initiated an A-IoT service, or has A-IoT data to report, when evaluated a cell for cell selection or reselection, the communication device 202 may apply the offset when deriving a cell selection receiving (RX) level value (Srxlev) or a cell selection quality value (Squal) .
[0126] For example, Srxlev may be determined based on equation (1) below. Srxlev = Qrxlevmeas – (Qrxlevmin + Qrxlevminoffset) –Pcompensation –Qoffsettemp (1) where Srxlev denotes a cell selection RX level value, Qrxlevmeas denotes a measured cell RX level value (RSRP) , Qrxlevmin denotes a minimum required RX level in a cell, Qrxlevminoffset denotes an offset to Qrxlevmin, Pcompensation denotes a compensation parameter, and Qoffsettemp denotes an offset temporarily applied to a cell.
[0127] For example, Squal may be determined based on equation (2) below. Squal = Qqualmeas – (Qqualmin + Qqualminoffset) –Qoffsettemp (2) where Squal denotes a cell selection quality value, Qqualmeas denotes a measured cell quality value (RSRQ) , Qqualmin denotes a minimum required quality level in a cell, Qqualminoffset denotes an offset to Qqualmin, and Qoffsettemp denotes an offset temporarily applied to a cell.
[0128] For example, for a cell supporting A-IoT data availability indicating, the communication device 202 may use a first offset (Offset1) for the parameter Qoffsettemp for the concerned cell when performing cell selection and reselection.
[0129] For example, for a cell not supporting A-IoT data availability indicating, the communication device 202 may use a second offset (Offset2) for the parameter Qoffsettemp for the concerned cell when performing cell selection and reselection.
[0130] For example, for a cell supporting A-IoT data providing, the communication device 202 may use a third offset (Offset3) for the parameter Qoffsettemp for the concerned cell when performing cell selection and reselection.
[0131] For example, for a cell not supporting A-IoT data providing, the communication device 202 may use a fourth offset (Offset4) for the parameter Qoffsettemp for the concerned cell when performing cell selection and reselection.
[0132] For example, for a cell supporting A-IoT service, the communication device 202 may use a fifth offset (Offset5) for the parameter Qoffsettemp for the concerned cell when performing cell selection and reselection.
[0133] For example, for a cell not supporting A-IoT service, the communication device 202 may use a sixth offset (Offset6) for the parameter Qoffsettemp for the concerned cell when performing cell selection and reselection.
[0134] In this way, impact of A-IoT data or availability information transmission on idle or inactive mobility may be considered.
[0135] Continuing to refer to FIG. 2, at step 250, upon reception of the first information from the communication device 202, the network device 203 may transmit the information to a further network device (e.g., the network device 204) during a HO procedure. In the HO procedure, the network device 203 serves as a source network device or an old network device, and the network device 204 serves as a target network device or a new network device.
[0136] In some embodiments, the network device 203 may transmit the first information to the network device 204 during HO preparation. In some embodiments where the network device 204 is a CN device, the network device 203 may transmit the first information over NG application protocol (NGAP) , e.g., in an INITIAL CONTEXT SETUP message, a UE CONTEXT MODIFICATION message, a HANDOVER REQUEST message, or a PATH SWITCH REQUEST ACKNOWLEDGE message. In some embodiments where the network device 204 is a RAN device, the network device 203 may transmit the first information over Xn application protocol (XnAP) , e.g., in a handover preparation information (HandoverPreparationInformation) message.
[0137] In some embodiments, the network device 203 may transmit the first information to the network device 204 during UE context retrieval. In some embodiments where the network device 204 is a RAN device, the network device 203 may transmit the first information over XnAP, e.g., in a HANDOVER REQUEST message, or a RETRIEVE UE CONTEXT RESPONSE message.
[0138] With reference to FIG. 2, at step 260, the network device 203 may receive, from the network device 204, information (for convenience, also referred to as fourth information or assistance information herein) assistant for the communication procedure.
[0139] In some embodiments, the fourth information may comprise a service type of the communication procedure, i.e., A-IoT service type. In some embodiments, the fourth information may comprise an indication indicating whether the communication procedure is targeted for one or multiple A-IoT devices. In some embodiments, the fourth information may comprise number (e.g., an approximate number) of A-IoT devices for which the communication procedure is targeted. In some embodiments, the fourth information may comprise a command type of the communication procedure, e.g., read, write, disable, etc. In some embodiments, the fourth information may comprise an estimated size of the first data (i.e., A-IoT data) related to the communication procedure.
[0140] For example, in case of a non-access stratum (NAS) based solution or user plane (UP) based solution, the network device 203 may be assisted for an A-IoT service and resource allocation of a communication device. Upon the communication device 202 moves to the network device 204, the network device 204 may request for the assistance information based on an indication of A-IoT data availability information (i.e., the first information) from the communication device 202.
[0141] In some embodiments, the communication device 202 may include A-IoT data availability information (i.e., the first information) to assist UE context retrieval. In some embodiments, the communication device 202 may include an information element (IE) ‘A-IoT data availability information’ in a RETRIEVE UE CONTEXT REQUEST message. In some embodiments, the communication device 202 may include information of support of A-IoT service or A-IoT data providing to assist UE context retrieval.
[0142] In some embodiments, if the IE ‘A-IoT data availability information’ is included in the RETRIEVE UE CONTEXT REQUEST message, the network device 203 (i.e., old network device, e.g., old NG-RAN node) shall, if supported, consider that the communication device 202 has indicated A-IoT data availability in the network device 204 (i.e., new network device, e.g., new NG-RAN node) .
[0143] In some embodiments, if the assistance information is included in the RETRIEVE UE CONTEXT RESPONSE message, the network device 204 (i.e., new network device, e.g., new NG-RAN node) shall, if supported, store the received assistance information in the UE context, and use the received assistance information for the concerned A-IoT service request and / or the communication device 202. In some embodiments, the assistance information in the RETRIEVE UE CONTEXT RESPONSE message is provided based on the communication device 202 including information of support of A-IoT service or A-IoT data providing (i.e., in the RETRIEVE UE CONTEXT REQUEST message) .
[0144] With the assistance information, an A-IoT service may be well performed.
[0145] So far, solutions of A-IoT data delivery are described. With the solutions, information of availability of A-IoT data may be indicated to NW, and NW decision on retrieval of the A-IoT data may be facilitated. It is to be understood that operations or steps described in connection with FIG. 2 may be performed separately or in any suitable combinations.EXAMPLE IMPLEMENTATION OF METHODS
[0146] Corresponding to the above process, embodiments of the present disclosure provide methods of communication implemented at a communication device and at a network device. These methods will be described below with reference to FIGs. 3 and 4.
[0147] FIG. 3 illustrates a flowchart of an example method 300 of communication implemented at a communication device in accordance with some embodiments of the present disclosure. For the purpose of discussion, in the following, the method 300 will be described with reference to FIG. 2. It is to be understood that the method 300 may include additional blocks not shown and / or may omit some blocks as shown, and the scope of the present disclosure is not limited in this regard.
[0148] At block 310, a communication device (e.g., the communication device 202) may determine that a condition is fulfilled. The condition is used for triggering a transmission of first information. The first information indicates availability of first data related to a communication procedure between the communication device and a set of A-IoT devices.
[0149] In some embodiments, the condition may comprise at least one of the following: a transmission of the first information is allowed; the communication device is in a first duration for which the transmission of the first information is allowed; the first information has not been transmitted to the network device since a first timing; at least part of the first data has not been transmitted to the network device since a second timing; the first data is updated; or location information associated with the communication device is updated.
[0150] In some embodiments, the communication device may determine that the transmission of the first information is allowed based on at least one of the following: the communication device is capable to indicate the availability of the first data; the communication device is configured to indicate the availability of the first data; the network device supports the indicating of the availability of the first data; the network device supports a transmission of the first data; the communication device is configured to indicate the availability of the first data in a first cell which is not a cell in which the communication procedure is performed or the first data is collected; or the communication device is configured to transmit the first data in the first cell.
[0151] In some embodiments, the communication device may be further caused to at least one of the following: in accordance with a determination that a timer is not running, determine that the communication device is in the first duration; in accordance with a determination that the first information is transmitted, start the timer; or in accordance with a determination that the timer is running, skip a transmission of second information indicating the availability of the first data.
[0152] In some embodiments, the first or second timing may comprise at least one of the following: a timing in which the communication device is configured to indicate the availability of the first data; a timing in which the communication procedure is initiated; a timing in which the communication procedure is finished; a timing in which the communication device enters a connected state last time; a timing in which the communication device camps on a cell of the network device; or a timing in which the communication device is connected to the network device.
[0153] In some embodiments, the communication device may be further caused to determine that the first data is updated based on at least one of the following: updated first data is available; the first data mapped to at least one radio bearer configured for the transmission of the first information is available; the first data mapped to a radio bearer not configured for a SDT becomes available during the SDT; a size of the first data is larger than or equal to a threshold size; or a change of information related to the first data is larger than or equal to a threshold change.
[0154] In some embodiments, the first information may comprise at least one of the following: an indication indicating that the first data is available; a size of the first data; identity information associated with the network device under which the first data is collected; identity information associated with the communication procedure; an indication indicating whether there is an ongoing communication procedure; or an indication indicating that the communication procedure is finished.
[0155] In some embodiments, the communication device may transmit the first information by at least one of the following: transmitting the first information during a RRC connection establishment; transmitting the first information during a RRC reconfiguration; transmitting the first information during a RRC connection re-establishment; transmitting the first information during a RRC connection resume; or transmitting the first information during a UAI reporting.
[0156] In some embodiments, the communication device may be further caused to: receive, from the network device, a request for the first data; and transmit, to the network device, a response comprising the first data.
[0157] In some embodiments, the request may comprise at least one of the following: identity information associated with the first data; size information of the first data; time information related to collection of the first data; location information related to collection of the first data; or location information associated with the communication device.
[0158] In some embodiments, the response may further comprise at least one of the following: identity information of associated with the network device under which the first data is collected; identity information associated with the communication procedure; or an indication indicating whether there is an ongoing communication procedure.
[0159] In some embodiments, the identity information associated with the communication procedure may comprise at least one of the following: a session identity associated with the first data; or a transaction identity associated with the first data.
[0160] In some embodiments, the communication device may be further caused to: receive the first information from the set of A-IoT devices.
[0161] In some embodiments, the communication device may be further caused to at least one of the following: receive, from the network device, a configuration for a transmission of third information, the third information being used for triggering a transmission of the first information from the set of A-IoT devices; or transmit the third information to the set of A-IoT devices.
[0162] In some embodiments, the configuration may comprise at least one of the following: a periodicity of the transmission of the third information; a time offset for determining a start of a time domain resource for the transmission of the third information; a time reference SFN for determining the time offset; a time reference H-SFN for determining the time offset; a set of SSBs for the transmission of the third information; or frequency domain allocation for the transmission of the third information.
[0163] At block 320, the communication device may transmit the first information to a network device (e.g., the network device 203) .
[0164] In some embodiments, the communication device may transmit the first information by:in accordance with a determination that the first information has been transmitted by a RRC reconfiguration complete message, excluding the first information in a UAI message that is triggered due to a last 1 second mechanism before the communication device receives a reconfiguration with sync.
[0165] In some embodiments, the communication device may be further caused to: determine an offset for a cell based on whether the cell supports the indicating of the availability of the first data, or whether the cell supports a transmission of the first data, or whether the cell supports the communication procedure; and perform a cell selection or reselection based on the offset.
[0166] In some embodiments, the communication device may be further caused to at least one of the following: in accordance with a determination that there is an ongoing SDT procedure, and an uplink grant is able to accommodate second data associated with the SDT procedure but is insufficient to additionally accommodate the first data, cancel a transmission of the first data; or in accordance with a determination that there is an ongoing SDT procedure, and an uplink grant is able to accommodate second data associated with the SDT procedure but is insufficient to additionally accommodate the first information, cancel the transmission of the first information.
[0167] With the method 300, information of availability of A-IoT data may be indicated to NW, and NW decision on retrieval of the A-IoT data may be facilitated.
[0168] FIG. 4 illustrates a flowchart of an example method 400 of communication implemented at a network device in accordance with some embodiments of the present disclosure. For the purpose of discussion, in the following, the method 400 will be described with reference to FIG. 2. It is to be understood that the method 400 may include additional blocks not shown and / or may omit some blocks as shown, and the scope of the present disclosure is not limited in this regard.
[0169] At block 410, a network device (e.g., the network device 203) may receive, from a communication device (e.g., the communication device 202) , first information indicating availability of first data related to a communication procedure between the communication device and a set of A-IoT devices.
[0170] In some embodiments, the first information may comprise at least one of the following: an indication indicating that the first data is available; a size of the first data; identity information associated with the network device under which the first data is collected; identity information associated with the communication procedure; an indication indicating whether there is an ongoing communication procedure; or an indication indicating that the communication procedure is finished.
[0171] At block 420, the network device may transmit the first information to a further network device during a HO procedure.
[0172] In some embodiments, the network device may transmit the first information by: transmitting the first information during HO preparation or UE context retrieval.
[0173] In some embodiments, the network device may be further caused to: receive, from the further network device, fourth information assistant for the communication procedure. In some embodiments, the fourth information may comprise at least one of the following: a service type of the communication procedure; an indication indicating whether the communication procedure is targeted for one or multiple A-IoT devices; number of A-IoT devices for which the communication procedure is targeted; a command type of the communication procedure; or an estimated size of the first data related to the communication procedure.
[0174] With the method 400, NW decision on retrieval of the A-IoT data may be improved.
[0175] It is to be understood that operations of the methods 300 and 400 correspond to that described with reference to FIG. 2, and thus other details are not repeated here for conciseness.EXAMPLE IMPLEMENTATION OF DEVICES
[0176] FIG. 5 is a simplified block diagram of a device 500 that is suitable for implementing embodiments of the present disclosure. The device 500 can be considered as a further example implementation of the terminal device 110 or 111 or the RAN device 120 or A-IoT device 130 or the CN device 140 or the A-IoT server 150 as shown in FIG. 1, or the communication device 202 or the network device 203 or 204 as shown in FIG. 2. Accordingly, the device 500 can be implemented at or as at least a part of the terminal device 110 or 111 or the RAN device 120 or A-IoT device 130 or the CN device 140 or the A-IoT server 150 or the communication device 202 or the network device 203 or 204.
[0177] As shown, the device 500 includes a processor 510, a memory 520 coupled to the processor 510, a suitable transceiver 540 coupled to the processor 510, and a communication interface coupled to the transceiver 540. The memory 510 stores at least a part of a program 530. The transceiver 540 may be for bidirectional communications or a unidirectional communication based on requirements. The transceiver 540 may include at least one of a transmitter 542 or a receiver 544. The transmitter 542 and the receiver 544 may be functional modules or physical entities. The transceiver 540 has at least one antenna to facilitate communication, though in practice an Access Node mentioned in this application may have several ones. The communication interface may represent any interface that is necessary for communication with other network elements, such as X2 / Xn interface for bidirectional communications between eNBs / gNBs, S1 / NG interface for communication between a Mobility Management Entity (MME) / Access and Mobility Management Function (AMF) / SGW / UPF and the eNB / gNB, Un interface for communication between the eNB / gNB and a relay node (RN) , or Uu interface for communication between the eNB / gNB and a terminal device.
[0178] The program 530 is assumed to include program instructions that, when executed by the associated processor 510, enable the device 500 to operate in accordance with the embodiments of the present disclosure, as discussed herein with reference to FIGs. 1 to 4. The embodiments herein may be implemented by computer software executable by the processor 510 of the device 500, or by hardware, or by a combination of software and hardware. The processor 510 may be configured to implement various embodiments of the present disclosure. Furthermore, a combination of the processor 510 and memory 520 may form processing means 550 adapted to implement various embodiments of the present disclosure.
[0179] The memory 520 may be of any type suitable to the local technical network and may be implemented using any suitable data storage technology, such as a non-transitory computer readable storage medium, semiconductor based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory, as non-limiting examples. While only one memory 520 is shown in the device 500, there may be several physically distinct memory modules in the device 500. The processor 510 may be of any type suitable to the local technical network, and may include one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples. The device 500 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.
[0180] In some embodiments, a communication device comprises a circuitry configured to: in accordance with a determination that a condition is fulfilled, transmit, to a network device, first information indicating availability of first data related to a communication procedure between the communication device and a set of A-IoT devices, the condition comprising at least one of the following: a transmission of the first information is allowed; the communication device is in a first duration for which the transmission of the first information is allowed; the first information has not been transmitted to the network device since a first timing; at least part of the first data has not been transmitted to the network device since a second timing; the first data is updated; or location information associated with the communication device is updated.
[0181] In some embodiments, a network device comprises a circuitry configured to: receive, from a communication device, first information indicating availability of first data related to a communication procedure between the communication device and a set of A-IoT devices; and transmit the first information to a further network device during a HO procedure.
[0182] The term ‘circuitry’ used herein may refer to hardware circuits and / or combinations of hardware circuits and software. For example, the circuitry may be a combination of analog and / or digital hardware circuits with software / firmware. As a further example, the circuitry may be any portions of hardware processors with software including digital signal processor (s) , software, and memory (ies) that work together to cause an apparatus, such as a terminal device or a network device, to perform various functions. In a still further example, the circuitry may be hardware circuits and or processors, such as a microprocessor or a portion of a microprocessor, that requires software / firmware for operation, but the software may not be present when it is not needed for operation. As used herein, the term circuitry also covers an implementation of merely a hardware circuit or processor (s) or a portion of a hardware circuit or processor (s) and its (or their) accompanying software and / or firmware.
[0183] Generally, 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 representation, it will be appreciated that the blocks, apparatus, systems, techniques or methods 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.
[0184] 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 process or method as described above with reference to FIGs. 1 to 4. 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.
[0185] Program code for carrying out 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 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.
[0186] The above program code may be embodied on a machine readable medium, which may be any tangible medium that may contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine readable medium may be a machine readable signal medium or a machine readable storage medium. A machine 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 machine 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.
[0187] 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.
[0188] Although the present disclosure has been described in language 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 communication device comprising:a processor configured to cause the communication device to:in accordance with a determination that a condition is fulfilled, transmit, to a network device, first information indicating availability of first data related to a communication procedure between the communication device and a set of ambient Internet of things (A-IoT) devices, the condition comprising at least one of the following:a transmission of the first information is allowed;the communication device is in a first duration for which the transmission of the first information is allowed;the first information has not been transmitted to the network device since a first timing;at least part of the first data has not been transmitted to the network device since a second timing;the first data is updated; orlocation information associated with the communication device is updated.2.The communication device of claim 1, wherein the communication device is further caused to:determine that the transmission of the first information is allowed based on at least one of the following:the communication device is capable to indicate the availability of the first data;the communication device is configured to indicate the availability of the first data;the network device supports the indicating of the availability of the first data;the network device supports a transmission of the first data;the communication device is configured to indicate the availability of the first data in a first cell which is not a cell in which the communication procedure is performed or the first data is collected; orthe communication device is configured to transmit the first data in the first cell.3.The communication device of claim 1, wherein the communication device is further caused to at least one of the following:in accordance with a determination that a timer is not running, determine that the communication device is in the first duration;in accordance with a determination that the first information is transmitted, start the timer; orin accordance with a determination that the timer is running, skip a transmission of second information indicating the availability of the first data.4.The communication device of claim 1, wherein the first or second timing comprises at least one of the following:a timing in which the communication device is configured to indicate the availability of the first data;a timing in which the communication procedure is initiated;a timing in which the communication procedure is finished;a timing in which the communication device enters a connected state last time;a timing in which the communication device camps on a cell of the network device; ora timing in which the communication device is connected to the network device.5.The communication device of claim 1, wherein the communication device is further caused to:determine that the first data is updated based on at least one of the following:updated first data is available;the first data mapped to at least one radio bearer configured for the transmission of the first information is available;the first data mapped to a radio bearer not configured for a small data transmission (SDT) becomes available during the SDT;a size of the first data is larger than or equal to a threshold size; ora change of information related to the first data is larger than or equal to a threshold change.6.The communication device of claim 1, wherein the first information comprises at least one of the following:an indication indicating that the first data is available;a size of the first data;identity information associated with the network device under which the first data is collected;identity information associated with the communication procedure;an indication indicating whether there is an ongoing communication procedure; oran indication indicating that the communication procedure is finished.7.The communication device of claim 1, wherein the communication device is caused to transmit the first information by at least one of the following:transmitting the first information during a radio resource control (RRC) connection establishment;transmitting the first information during a RRC reconfiguration;transmitting the first information during a RRC connection re-establishment;transmitting the first information during a RRC connection resume; ortransmitting the first information during a user equipment assistance information (UAI) reporting.8.The communication device of claim 1, wherein the communication device is further caused to:receive, from the network device, a request for the first data; andtransmit, to the network device, a response comprising the first data.9.The communication device of claim 8, wherein the request comprises at least one of the following:identity information associated with the first data;size information of the first data;time information related to collection of the first data;location information related to collection of the first data; orlocation information associated with the communication device.10.The communication device of claim 8, wherein the response further comprises at least one of the following:identity information of associated with the network device under which the first data is collected;identity information associated with the communication procedure; oran indication indicating whether there is an ongoing communication procedure.11.The communication device of claim 6 or 10, wherein the identity information associated with the communication procedure comprises at least one of the following:a session identity associated with the first data; ora transaction identity associated with the first data.12.The communication device of claim 1, wherein the communication device is further caused to:receive the first information from the set of A-IoT devices.13.The communication device of claim 12, wherein the communication device is further caused to at least one of the following:receive, from the network device, a configuration for a transmission of third information, the third information being used for triggering a transmission of the first information from the set of A-IoT devices; ortransmit the third information to the set of A-IoT devices.14.The communication device of claim 13, wherein the configuration comprises at least one of the following:a periodicity of the transmission of the third information;a time offset for determining a start of a time domain resource for the transmission of the third information;a time reference system frame number (SFN) for determining the time offset;a time reference hyper system frame number (H-SFN) for determining the time offset;a set of synchronization signal and physical broadcast channel blocks (SSBs) for the transmission of the third information; orfrequency domain allocation for the transmission of the third information.15.The communication device of claim 1, wherein the communication device is further caused to:determine an offset for a cell based on whether the cell supports the indicating of the availability of the first data, or whether the cell supports a transmission of the first data, or whether the cell supports the communication procedure; andperform a cell selection or reselection based on the offset.16.The communication device of claim 1, wherein the communication device is further caused to at least one of the following:in accordance with a determination that there is an ongoing small data transmission (SDT) procedure, and an uplink grant is able to accommodate second data associated with the SDT procedure but is insufficient to additionally accommodate the first data, cancel a transmission of the first data; orin accordance with a determination that there is an ongoing SDT procedure, and an uplink grant is able to accommodate second data associated with the SDT procedure but is insufficient to additionally accommodate the first information, cancel the transmission of the first information.17.The communication device of claim 1, wherein the communication device is caused to transmit the first information by:in accordance with a determination that the first information has been transmitted by a radio resource control (RRC) reconfiguration complete message, excluding the first information in a user equipment assistance information (UAI) message that is triggered due to a last 1 second mechanism before the communication device receives a reconfiguration with sync.18.A network device comprising:a processor configured to cause the network device to:receive, from a communication device, first information indicating availability of first data related to a communication procedure between the communication device and a set of ambient Internet of things (A-IoT) devices; andtransmit the first information to a further network device during a handover (HO) procedure.19.The network device of claim 18, wherein the network device is caused to transmit the first information by:transmitting the first information during HO preparation or user equipment (UE) context retrieval.20.The network device of claim 18, wherein the network device is further caused to:receive, from the further network device, fourth information assistant for the communication procedure, the fourth information comprising at least one of the following:a service type of the communication procedure;an indication indicating whether the communication procedure is targeted for one or multiple A-IoT devices;number of A-IoT devices for which the communication procedure is targeted;a command type of the communication procedure; oran estimated size of the first data related to the communication procedure.21.The network device of claim 18, wherein the first information comprises at least one of the following:an indication indicating that the first data is available;a size of the first data;identity information associated with the network device under which the first data is collected;identity information associated with the communication procedure;an indication indicating whether there is an ongoing communication procedure; oran indication indicating that the communication procedure is finished.22.A method of communication at a communication device, comprising:in accordance with a determination that a condition is fulfilled, transmitting, to a network device, first information indicating availability of first data related to a communication procedure between the communication device and a set of ambient Internet of things (A-IoT) devices, the condition comprising at least one of the following:a transmission of the first information is allowed;the communication device is in a first duration for which the transmission of the first information is allowed;the first information has not been transmitted to the network device since a first timing;at least part of the first data has not been transmitted to the network device since a second timing;the first data is updated; orlocation information associated with the communication device is updated.23.A method of communication at a network device, comprising:receiving, from a communication device, first information indicating availability of first data related to a communication procedure between the communication device and a set of ambient Internet of things (A-IoT) devices; andtransmitting the first information to a further network device during a handover (HO) procedure.