WO2017171296A1 - Procédé et équipement pour commander un ciot pour un ue - Google Patents

Procédé et équipement pour commander un ciot pour un ue Download PDF

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Publication number
WO2017171296A1
WO2017171296A1 PCT/KR2017/003052 KR2017003052W WO2017171296A1 WO 2017171296 A1 WO2017171296 A1 WO 2017171296A1 KR 2017003052 W KR2017003052 W KR 2017003052W WO 2017171296 A1 WO2017171296 A1 WO 2017171296A1
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WO
WIPO (PCT)
Prior art keywords
ciot
bearer
network node
information
radio access
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PCT/KR2017/003052
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English (en)
Inventor
Xiaowan KE
Hong Wang
Lixiang Xu
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Samsung Electronics Co., Ltd.
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Application filed by Samsung Electronics Co., Ltd. filed Critical Samsung Electronics Co., Ltd.
Publication of WO2017171296A1 publication Critical patent/WO2017171296A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/34—Selective release of ongoing connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • the present application relates to the technical field of wireless communication technologies, and in particular to a method and equipment for controlling a CIOT for a UE.
  • the 5G or pre-5G communication system is also called a ‘Beyond 4G Network’ or a ‘Post LTE System’.
  • the 5G communication system is considered to be implemented in higher frequency (mmWave) bands, e.g., 60GHz bands, so as to accomplish higher data rates.
  • mmWave e.g., 60GHz bands
  • MIMO massive multiple-input multiple-output
  • FD-MIMO Full Dimensional MIMO
  • array antenna an analog beam forming, large scale antenna techniques are discussed in 5G communication systems.
  • RANs Cloud Radio Access Networks
  • D2D device-to-device
  • CoMP Coordinated Multi-Points
  • FQAM Hybrid FSK and QAM Modulation
  • SWSC sliding window superposition coding
  • ACM advanced coding modulation
  • FBMC filter bank multi carrier
  • NOMA non-orthogonal multiple access
  • SCMA sparse code multiple access
  • the Internet which is a human centered connectivity network where humans generate and consume information
  • IoT Internet of Things
  • IoE Internet of Everything
  • sensing technology “wired/wireless communication and network infrastructure”, “service interface technology”, and “Security technology”
  • M2M Machine-to-Machine
  • MTC Machine Type Communication
  • IoT Internet technology services
  • IoT may be applied to a variety of fields including smart home, smart building, smart city, smart car or connected cars, smart grid, health care, smart appliances and advanced medical services through convergence and combination between existing Information Technology (IT) and various industrial applications.
  • IT Information Technology
  • 5G communication systems to IoT networks.
  • technologies such as a sensor network, Machine Type Communication (MTC), and Machine-to-Machine (M2M) communication may be implemented by beamforming, MIMO, and array antennas.
  • MTC Machine Type Communication
  • M2M Machine-to-Machine
  • Application of a cloud Radio Access Network (RAN) as the above-described Big Data processing technology may also be considered to be as an example of convergence between the 5G technology and the IoT technology.
  • RAN Radio Access Network
  • FIG. 1 is a system architecture diagram showing the System Architecture Evolution (SAE).
  • SAE System Architecture Evolution
  • a User Equipment (UE) 101 is a terminal equipment supporting a network protocol.
  • An Evolved Universal Terrestrial Radio Access Network (E-UTRAN) 102 is a radio access network in which an eNodeB/NodeB providing the UE with an interface for accessing the radio network is included.
  • a Mobile Management Entity (MME) 103 is responsible for managing a movement context, a session context and security information for the UE.
  • a Service Gateway (SGW) 104 mainly functions to provide a user plane, and the MME 103 and the SGW 104 can be in a same physical entity.
  • a Packet Data Network Gateway (PGW) 105 is responsible for charging, legal interception or more, and the PGW 105 and the SGW 104 can also be in a same physical entity.
  • PGW Packet Data Network Gateway
  • a Policy and Charging Rules Function Entity (PFRF) 106 provides Quality of Service (QoS) policy and charging rules.
  • a Serving GPRS Support Node (SGSN) 108 is a network node equipment providing routing for data transmission in a Universal Mobile Telecommunication System (UMTS).
  • a Home Subscriber Server (HSS) 109 is a home subsystem of the UE, and is responsible for protecting user information comprising the current location of the UE, the address of a serving node, user security information, a packet data context of the UE, or more.
  • the present application provides a method and equipment for controlling a CIOT for a UE in order to save the signaling overhead and reduce the time delay for a UE to access a network.
  • a method for controlling a Cellular Internet of Thing (CIOT) for a User Equipment (UE) comprising the following steps of:
  • the UE controlling, by the first radio access network node, the UE based on the acquired CIOT information about the UE.
  • a radio access network node equipment comprising a receiving module and a control module, wherein:
  • the receiving module is configured to acquire CIOT information about a UE.
  • control module is configured to control the UE based on the CIOT information about the UE.
  • a method for controlling a CIOT for a UE comprising the following steps of:
  • a user equipment comprising a receiving module and a control module, wherein:
  • the receiving module is configured to acquire CIOT information about a UE.
  • control module is configured to control the UE based on the CIOT information about the UE.
  • the signaling overhead is saved, the time delay for a UE to access a network is reduced, the efficiency of data transmission is improved, and the user experience is enhanced. This creates conditions for a large number of IOT equipments to access a network, and provides technical support to the next generation of mobile communication applications in the future.
  • Fig. 1 is a schematic diagram of an existing SAE system architecture
  • Fig. 2 is a schematic flowchart of a first method for controlling a CIOT for a UE according to the present invention
  • Fig. 3 is a schematic flowchart of a second method for controlling a CIOT for a UE according to the present invention
  • Fig. 4 is a schematic diagram of Embodiment 1 of the method for controlling a CIOT for a UE according to the present invention
  • Fig. 5 is a schematic diagram of Embodiment 2 of the method for controlling a CIOT for a UE according to the present invention
  • Fig. 6 is a schematic diagram of Embodiment 3 of the method for controlling a CIOT for a UE according to the present invention
  • Fig. 7 is a schematic diagram of Embodiment 4 of the method for controlling a CIOT for a UE according to the present invention.
  • Fig. 8 is a schematic diagram of Embodiment 5 of the method for controlling a CIOT for a UE according to the present invention.
  • Fig. 9 is a schematic diagram of Embodiment 6 of the method for controlling a CIOT for a UE according to the present invention.
  • Fig. 10 is a schematic diagram of Embodiment 7 of the method for controlling a CIOT for a UE according to the present invention.
  • Fig. 11 is a schematic diagram of a composition structure of a preferred radio access network node equipment according to the present invention.
  • Fig. 12 is a schematic diagram of a composition structure of a preferred user equipment according to the present invention.
  • a communication service of a Cellular IOT is provided.
  • the CIOT is a method for optimizing data transmission.
  • the data for the CIOT can be carried on a control plane (e.g., a Non-Access Stratum Protocol Data Unit (NAS PDU) to be transmitted, or carried on a user plane (e.g., a UE bearer) to be transmitted.
  • a control plane e.g., a Non-Access Stratum Protocol Data Unit (NAS PDU) to be transmitted
  • NAS PDU Non-Access Stratum Protocol Data Unit
  • user plane e.g., a UE bearer
  • a CIOT in which the data is carried on the control plane, is called control plane CIOT optimization.
  • the control plane CIOT optimization neither require to establish a UE bearer in a radio access network node, nor to establish a radio security context in the radio access network, and encryption is executed in the core network.
  • the signaling overhead required for establishing a UE bearer can be saved, so that the time delay for a UE to access a network or for a UE to receive or transmit data is shortened.
  • a CIOT in which the data is carried on the user plane, is called user plane CIOT optimization.
  • user plane CIOT optimization when a UE is not active any more, a context of the UE is suspended rather than released. When there is a data transmission demand, the UE context is resumed rather than established, so that the signaling overhead for establishing a connection to the UE or a UE bearer is reduced, and the time delay for a UE to access a network or for a UE to receive or transmit data is shortened.
  • a CIOT communication service can be applied to a wideband radio access network (e.g., WB EUTRAN, LTE), or can also be applied to a narrow band radio access network (e.g., NB IOT).
  • a core network node or a radio access network node can support both a CIOT and a non-CIOT, or support a CIOT only.
  • the core network node supporting the CIOT or the radio access network node supporting the CIOT can support both the control plane CIOT optimization (a control plane CIOT, for short) and the user plane CIOT optimization (a user plane CIOT, for short), or support the CIOT control plane only or the CIOT user plane only. Supporting services having low time delay requirements is an important technical feature of the fifth generation of mobile communication network. Therefore, the CIOT, as a data transmission optimization method, can also be applied in further mobile communication networks, not limited to IOT equipments and existing radio network technologies.
  • a radio access network node When a UE satisfies the conditions for deactivating (for example, there is no data to be transmitted, or the UE is not active any more or does not interact with a core network for a long period of time), and if there is no CIOT bearer for the UE in a radio access network, a radio access network node should request the core network to release a context of the UE or release a connection to the UE; however, if there is a CIOT bearer for the UE in the radio access network, the radio access network node should request the core network to suspend the context of the UE. There is no CIOT information about the UE in the existing radio access network.
  • the CIOT mentioned hereinafter can be manifested as an IOT or a NB IOT.
  • the radio access network node can be a base station, an eNB, a NodeB or more.
  • the core network node can be an MME, an SGSN or more.
  • the CIOT bearer can be a user plane CIOT bearer or a bearer supporting the user plane CIOT optimization.
  • the non-CIOT bearer can be a non-user plane CIOT bearer, an ordinary bearer or more.
  • control plane can be a signaling plane, an NAS signaling or a Signaling Radio Bearer (SRB).
  • SRB Signaling Radio Bearer
  • the CIOT can be called an Internet of Thing (IOT), a Narrow Band Internet of Thing (NB IOT).
  • IOT Internet of Thing
  • NB IOT Narrow Band Internet of Thing
  • Fig. 2 is a schematic flowchart of a first method for controlling a CIOT for a UE according to the present invention, comprising the following steps.
  • S201 By a first radio access network node, CIOT information about a UE is acquired.
  • the first radio access network node can acquire, from a second radio network node, a core network node or the UE, the CIOT information about the UE.
  • the CIOT information about the UE can be manifested as indication information about suspension or release of the UE or a UE bearer.
  • the CIOT information about the UE can comprise at least one of the following: CIOT information of the UE and CIOT information of a UE bearer.
  • the CIOT information can comprise one or more of the following.
  • the user plane CIOT can be further manifested as: user plane CIOT optimization, CIOT, being able to be suspended, being able to be suspended and resumed, being able to be not released, and being able to be not released and not established.
  • the user plane CIOT refers to suspending or resuming the information about the UE as desired.
  • the first radio access network node can suspend a UE indicated as the user plane CIOT or a context of the UE; and, b) when a UE bearer satisfies the conditions for deactivating, the first radio access network node can suspend a UE bearer indicated as the user plane CIOT of the UE bearer or a context of the UE bearer.
  • whether a UE bearer is a CIOT is distinguished by a new S1 message. For example, what is established by a new S1 message is a user plane CIOT bearer, while what is established by a current S1 message (for example, an E-RAB setup request) is a non-user plane CIOT bearer.
  • the non-user plane CIOT can be further manifested as: non-user plane CIOT optimization, non-user plane CIOT, non-CIOT, being able to be not suspended, being able to be not suspended and not resumed, being able to be released, and being able to be released and established.
  • the non-user plane CIOT refers to releasing or establishing the information about the UE as desired.
  • the first radio access network node can release a UE indicated as the non-user plane CIOT of the UE or a context of the UE; and, b) when a UE bearer satisfies the conditions for deactivating, the first radio access network node can release a UE bearer indicated as the non-user plane CIOT of the UE bearer or a context of the UE bearer.
  • the first radio access network node can distinguish whether a UE bearer is a CIOT by receiving different interface messages. For example, what is established by a new S1 message specific to the user plane CIOT is a user plane CIOT bearer, while what is established by a current S1 message (for example, an E-RAB setup request) is a non-user plane CIOT bearer.
  • the first radio access network node determines whether the CIOT information about the UE is a control plane CIOT by receiving different interface messages. For example, what is established by a new S1 message specific to the control plane CIOT is a control plane CIOT, that is, the new S1 message is manifested as an indication of the control plane CIOT.
  • the indication information of an initial context of the UE is used when establishing an ordinary context of the UE.
  • the information about the UE can be UE information of a UE level or a UE bearer level, and the information about the UE comprises but is not limited to one or more of the following: a connection to the UE, a context of the UE, a UE bearer and a context of the UE bearer.
  • the UE bearer in the information about the UE comprises a CIOT bearer only, or a non-CIOT bearer only.
  • the reasons for the unsuccessful resume comprise one or more of the following: insufficient resource or resource congestion, no context of the UE found, and no context of the UE bearer found.
  • the insufficient resource or resource congestion is manifested as being able to be suspended; and no context of the UE bearer found is manifested as being able to be released.
  • the satisfying the conditions for deactivating the UE comprises one or more of the following: the conditions for releasing the connection to the UE are satisfied, the UE is not active any more, the UE does not transmit or receive data (for example, both the control plane bearer and the user plane bearer do not transmit or receive data), the UE is deactivated due to insufficient resources, and all UE bearers satisfy the conditions for deactivating a UE bearer.
  • the satisfying the conditions for deactivating the UE bearer comprises one or more of the following: the UE bearer is not active any more, no data is transmitted in the UE bearer, the UE bearer (e.g., a UE bearer having a low priority) is deactivated due to insufficient resources, and the UE bearer (e.g., a UE bearer having a low priority) is resumed unsuccessfully due to insufficient resources.
  • the CIOT information about the UE can be transmitted to the first radio access network node by one or more of the following messages: an initial UE context setup request message, a UE connection setup indication message, a UE context modification request message, a downlink NAS transmission message, a paging message or a new S1 message.
  • the CIOT information about the UE being contained in a UE context modification request message indicates that the CIOT information about the UE is updated, and the first radio access network node can perform updating according to the received CIOT information about the UE.
  • the CIOT information about the UE is contained in a paging message, and the first radio access network node can perform paging according to the received CIOT information about the UE.
  • the core network node, the UE or the second access network node can decide whether to transmit the CIOT information about the UE, according to the CIOT capacity of the first radio access network node. In some implementations, if the first radio access network node does not support the CIOT, the core network node, the UE or the second access network cannot transmit the CIOT information about the UE to the first radio access network node. In some implementations, if the first radio access network node does not support the control plane CIOT, the core network node, the UE or the second access network cannot transmit the control plane CIOT information about the UE to the first radio access network node. In some implementations, if the first radio access network node does not support the user plane CIOT, the core network node, the UE or the second access network cannot transmit the user plane CIOT information about the UE to the first radio access network node.
  • the core network node, the second radio access network node or the UE can further decide to request radio resources for a CIOT bearer, in conjunction with the CIOT capacity supported by the first radio access network node.
  • the core network node or the UE does not request the first radio access network node to establish a CIOT bearer.
  • the core network node or the second radio access network node will not hand over the CIOT bearer to the target radio access network node.
  • the acquired CIOT information about the UE is stored.
  • the first radio access network node can control the UE as desired based on the acquired CIOT information about the UE.
  • the controlling the UE comprises at least one of the following: suspending a connection to the UE, suspending a context of the UE, suspending a UE bearer, suspending a context of the UE bearer, releasing a connection to the UE, releasing the context of the UE, releasing the UE bearer, releasing the context of the UE bearer, and maintaining a CIOT bearer in an activated state, wherein the UE bearer comprises only a CIOT bearer, or comprises only a non-CIOT bearer.
  • the first radio access network node requests to suspend the information about the UE (for example, the connection to the UE or the context of the UE).
  • the information about the UE is as described in the step 201 and will not be repeated here.
  • the satisfying the conditions for deactivating the UE is as described in the step 201 and will not be repeated here.
  • contexts of all UE bearers are also suspended.
  • the information about the UE can be determined to be suspended or released according to different reasons for the unsuccessful resume. For example, if the unsuccessful resume is resulted from insufficient resources, the connection to the UE or the context of the UE can be suspended; and, when the unsuccessful resume is caused by no context of the UE found, the connection to the UE or the context of the UE can be released.
  • the first radio access network node can execute one or more of the following:
  • the first radio access network node not supporting the CIOT or the user plane CIOT requests to release the information about the UE.
  • the information about the UE is as described in the step 201 and will not be repeated here.
  • the satisfying the conditions for deactivating the UE is as described in the step 201, and will not be repeated here.
  • contexts of all UE bearers are also released.
  • the first radio access network node can execute one or more of the following as desired:
  • the first radio access network node when the conditions for deactivating the UE bearer are satisfied, requests to suspend the CIOT bearer.
  • the satisfying the conditions for deactivating the UE bearer is as described in the step 201 and will not be repeated here.
  • the first radio access network node can request the core network node, the UE or the second radio access network node to suspend the CIOT bearer.
  • the first radio access network node requests to suspend the CIOT bearer.
  • the satisfying the conditions for deactivating the UE bearer is as described in the step 201 and will not be repeated here.
  • the radio access network node can resume the UE bearer or the context of the UE bearer as desired. For example, when there is a need of transmitting the data on the suspended UE bearer subsequently, the radio access network node can resume the UE bearer or the context of the UE bearer.
  • a UE bearer or a context of the UE bearer can be determined to be suspended or released according to different reasons for the unsuccessful resume. For example, if the unsuccessful resume is resulted from insufficient resources, the UE bearer or the context of the UE bearer can be suspended; and, when the unsuccessful resume is caused by no context of the UE found, the UE bearer or the context of the UE bearer can be released.
  • the first radio access network node maintains the CIOT bearer in the activated state when one of the following conditions is satisfied:
  • connection to the UE or the context of the UE is in the activated state or before the connection to the UE or the context of the UE is suspended;
  • the UE does not satisfy the conditions for deactivating the UE, where the satisfying the conditions for deactivating the UE is as described in the step 201 and will not be repeated here;
  • the first radio access network node requests to suspend the connection to the UE and/or suspend the context of the UE.
  • the satisfying the conditions for deactivating the UE is as described in the step 201 and will not be repeated here.
  • the CIOT bearer possibly has been suspended before the connection to the UE and/or the context of the UE is suspended.
  • the first radio access network node not supporting the CIOT or the user plane CIOT releases the CIOT bearer or the context of the CIOT bearer.
  • the satisfying the conditions for deactivating the UE bearer is as described in the step 201 and will not be repeated here.
  • the first radio access network node transmits a handover request (e.g., S1 handover) to the third radio access network node through the core network node as desired.
  • a handover request e.g., S1 handover
  • the core network node when receiving a handover request from the first radio access network node, the core network node cannot require the third radio access network node to establish a CIOT bearer, and instead, directly release the CIOT bearer to the first radio access network node after the handover is completed.
  • the first radio access network node can execute one or more of the following as desired:
  • the first radio access network node when the conditions for deactivating the UE bearer are satisfied, the first radio access network node requests to release the non-CIOT bearer and the context of the non-CIOT bearer.
  • the satisfying the conditions for deactivating the UE bearer is as described in the step 201 and will not be repeated here.
  • the first radio access network node when there is no CIOT bearer and the conditions for deactivating the UE are satisfied, the first radio access network node requests to release the connection to the UE and/or release the context of the UE.
  • the satisfying the conditions for deactivating the UE bearer is as described in the step 201 and will not be repeated here.
  • the information about the UE is released or established when the requirements are satisfied.
  • the information about the UE is as described in the step 201 and will not be repeated here.
  • the first radio access network node requests to release the context of the UE.
  • the first radio access network node requests to release the UE bearer.
  • the first radio access network node can request the core network node, the UE or the second radio access network node to suspend or resume the information about the UE.
  • the information about the UE is as described in the step 201 and will not be repeated here.
  • the first radio access network node can execute one or more of the following as desired.
  • the first radio access network node transmits a handover request (e.g., S1 handover) to the third radio access network node through the core network node as desired.
  • a handover request e.g., S1 handover
  • the core network node can request the third radio access network node to establish a CIOT bearer.
  • the data transmission can be transferred from the control plane CIOT to the user plane CIOT bearer, that is, the data of the UE is transferred from the control plane (e.g., NAS) to the CIOT bearer for transmission.
  • the core network node can transfer the downlink UE data from the control plane (e.g., NAS) to the CIOT bearer for transmission.
  • the first radio access network node can forward, according to a data forwarding address for the CIOT allocated by the third radio access network node, to the third radio access network node, data that has been not yet transmitted to the UE in the control plane (e.g., NAS) and/or the sequence number of the data; or the first radio access network node can forward, according to a data forward address for the CIOT allocated by the core network node, to the core network node, data that has been not yet transmitted to the UE or the sequence number of the data in the control plane (e.g., NAS).
  • a data forwarding address for the CIOT allocated by the third radio access network node to the third radio access network node, data that has been not yet transmitted to the UE in the control plane (e.g., NAS) and/or the sequence number of the data
  • the first radio access network node can forward, according to a data forward address for the CIOT allocated by the core network node, to the core network node, data that has been not yet
  • the first radio access network node can execute one or more of the following as desired:
  • the first radio access network node continues to monitor the activeness of the control plane, and then suspends the connection to the UE and/or suspend the context of the UE, or releases the connection to the UE and/or releases the context of the UE when the control plane is not active any more.
  • the core network node or the UE when deciding to establish a CIOT, transmits the CIOT information about the UE to the first radio access network node and then correspondingly controls the UE.
  • the core network node can decide to establish the CIOT of the UE according to at least one of the following: a CIOT type requested by the UE, the CIOT capacity of the radio access network node, the CIOT capacity of the core network node, the CIOT capacity of the UE, and a CIOT type allowed to be established by the UE.
  • the CIOT capacity comprises but is not limited to: control plane CIOT capacity and user plane CIOT capacity.
  • the CIOT type comprises but is not limited to: a control plane CIOT and a user plane CIOT.
  • the CIOT which is allowed to be established by the UE and is of the CIOT type supported by the UE, the radio access network node and the core network node, can be established.
  • Fig. 3 is a schematic flowchart of a second method for controlling a CIOT for a UE according to the present invention, comprising the following steps.
  • Step 301 By a UE, CIOT information about the UE is acquired.
  • the UE can acquire, from a radio access network node, a core network node or other UEs, the CIOT information about the UE.
  • the CIOT information about the UE is as described in the step 201 and will not be repeated here.
  • Step 302 By the UE, the UE is controlled based on the acquired CIOT information about the UE.
  • the controlling the UE comprises at least one of the following: suspending a connection to the UE, suspending a context of the UE, suspending a UE bearer, suspending a context of the UE bearer, releasing a connection to the UE, releasing the context of the UE, releasing the UE bearer, releasing the context of the UE bearer, and maintaining a CIOT bearer in an activated state, wherein the UE bearer comprises only a CIOT bearer, or comprises only a non-CIOT bearer.
  • the controlling the UE can be manifested as controlling the information about the UE.
  • the information about the UE is as described in the step 201 and will not be repeated here.
  • the UE can execute one or more of the following as desired:
  • the UE receives, from the core network node or the radio access network node, a request to suspend the UE. If the UE confirms that the UE bearer is a user plane CIOT, the UE suspends the connection to the UE or the context of the UE; or otherwise, unsuccessful suspension is returned. The reason for the unsuccessful suspension is that there is no user plane CIOT or no user plane CIOT bearer.
  • the UE receives, from the core network node or the radio access network node, a request to suspend a UE bearer or a context of the UE bearer. If the UE confirms that the UE bearer is a user plane CIOT, the UE suspends a corresponding CIOT bearer or a context of the CIOT bearer; or otherwise, unsuccessful suspension is returned. The reason for the unsuccessful suspension is that there is no user plane CIOT or no user plane CIOT bearer.
  • the UE can execute one or more of the following as desired:
  • the UE receives, from the core network node or the radio access network node, a request to suspend a UE bearer or a context of the UE bearer. If the UE confirms that the bearer being requested to suspend is a user plane CIOT, the UE suspends a CIOT bearer or a context of the CIOT bearer; or otherwise, unsuccessful suspension is returned. The reason for the unsuccessful suspension is that there is no user plane CIOT or no user plane CIOT bearer.
  • the UE from the core network node or the radio access network node, a request to suspend the UE. If the UE confirms that there is a UE bearer which is a user plane CIOT, the UE suspends the connection to the UE or the context of the UE; or otherwise, unsuccessful suspension is returned. The reason for the unsuccessful suspension is that there is no user plane CIOT or no user plane CIOT bearer.
  • the UE can resume the UE bearer or the context of the UE bearer as desired. For example, when there is a need of transmitting the data on the suspended UE bearer subsequently, the UE can request the radio access network node or the core network node to resume the UE bearer or the context of the UE bearer.
  • the UE can request the core network node or the radio access network node to suspend or resume the information about the UE.
  • the information about the UE is as described in the step 201 and will not be repeated here.
  • the UE can execute one or more of the following as desired:
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • Fig. 4 is a schematic diagram of Embodiment 1 of the method for controlling a CIOT for a UE according to the present invention.
  • a radio access network node receives, from a core network node, CIOT information about the UE.
  • the radio access network node can control the UE as desired based on the received CIOT information about the UE.
  • the method comprises the following steps.
  • Step 401 An RRC connection is established between a UE and a radio access network node.
  • Step 402 An initial UE message is transmitted to a core network node by the radio access network node.
  • Step 403 An initial context setup request message is transmitted to the radio access network node by the core network node.
  • the message comprises the CIOT information about the UE.
  • the CIOT information about the UE is as described in the step 201.
  • the core network node can decide, according to the CIOT capacity supported by the radio access network node, whether to transmit the CIOT information about the UE or whether to establish a CIOT bearer.
  • the core network node if the radio access network node does not support a CIOT or a user plane CIOT, the core network node does not request the radio access network node to establish a CIOT bearer, that is, the core network node does not request radio resources for the CIOT bearer from the radio access network node.
  • the radio access network node stores the received CIOT information about the UE, and then controls the UE as desired.
  • the specific operation is as described in the step 202 and will not be repeated here.
  • Step 404 An RRC reconfiguration request message is transmitted to the UE by the radio access network node.
  • an NAS message for a core network can be contained.
  • the core network node can transmit the CIOT information about the UE to the UE.
  • the specific indication information is the same as in the step 201 and will not be repeated here.
  • the UE can decide to suspend and resume the context of the UE or the context of the UE bearer according to the received CIOT information about the UE.
  • the specific process is as described in the step 302 and will not be repeated here.
  • Step 405 An RRC reconfiguration completion message is returned to the radio access network node by the UE.
  • Step 406 An initial UE context setup response is returned to the core network node by the radio access network node.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • Fig. 5 is a schematic diagram of Embodiment 2 of the method for controlling a CIOT for a UE according to the present invention.
  • a radio access network node receives, from a core network node, CIOT information about the UE.
  • the radio access network node can control the UE as desired based on the received CIOT information about the UE.
  • the method comprises the following steps.
  • Step 501 A bearer setup request message is transmitted to a radio access network node by a core network node.
  • the message comprises the CIOT information about the UE.
  • the CIOT information about the UE is as described in the step 201.
  • the core network node can decide, according to the CIOT capacity supported by the radio access network node, whether to transmit the CIOT information about the UE or whether to establish a CIOT bearer.
  • the core network node if the radio access network node does not support a CIOT or a user plane CIOT, the core network node does not request the radio access network node to establish a CIOT bearer, that is, the core network node does not request radio resources for the CIOT bearer from the radio access network node.
  • the radio access network node stores the received CIOT information about the UE, and then controls the UE as desired. The specific operation is as described in the step 202 and will not be repeated here.
  • Step 502 The radio access network node transmits an RRC reconfiguration request message to the UE, and informs the UE of establishing an established bearer.
  • the core network node can transmit the CIOT information about the UE to the UE.
  • the specific indication information is the same as in the step 201 and will not be repeated here.
  • the UE can decide to suspend and resume the context of the UE or the context of the UE bearer according to the CIOT information about the UE.
  • the specific process is as described in the step 302 and will not be repeated here.
  • Step 503 An attached RRC reconfiguration completion message is returned to the core network node by the UE.
  • Step 504 A bearer setup response message is returned to the core network node by the radio access network node.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • Fig. 6 is a schematic diagram of Embodiment 3 of the method for controlling a CIOT for a UE according to the present invention.
  • a target radio access network node receives, from a source radio access network node, CIOT information about the UE.
  • the target radio access network node can control the UE according to the received CIOT information about the UE.
  • the method comprises the following steps.
  • Step 601 A handover request message is transmitted to a target radio access network node by a source radio access network node.
  • the handover request message contains the CIOT information about the UE.
  • the target radio access network node stores the received CIOT information about the UE.
  • the source radio access network node can decide, according to the CIOT capacity supported by the target radio access network node, whether to transmit the CIOT information about the UE or whether to hand over a CIOT bearer.
  • the source radio access network node if the target radio access network node does not support a CIOT or a user plane CIOT, the source radio access network node does not hand over the CIOT bearer to the target radio access network node, that is, the source radio access network node does not request radio resources for the CIOT bearer from the target radio access network node.
  • the source radio access network node can request to release a CIOT radio bearer.
  • the CIOT information about the UE is as described in the step 201 and will not be repeated here.
  • Step 602 A handover response message is returned to the source radio access network node by the target radio access network node.
  • Step 603 An RRC reconfiguration request message is transmitted to the UE by the source radio access network node.
  • Step 604 An RRC reconfiguration completion message is returned to the target radio access network node by the UE.
  • Step 605 A path switch request message is transmitted to a core network node by the target radio access network node.
  • Step 606 A path switch acknowledge message is transmitted to the target radio access network node by the core network node.
  • the target radio access network node becomes a radio access network node serving the UE.
  • This radio access network node can control the UE according to the stored CIOT information about the UE. For example, the context of the UE or the context of the UE bearer is suspended or resumed as desired. The specific operation is as described in the step 202 and will not be repeated here.
  • this radio access network node can further control the UE according to the CIOT capacity supported by the radio access network node itself. Specifically, the CIOT capacity supported by the radio access network node is as described in the step 201.
  • Embodiment 3 can help the target radio access network node to decide whether to suspend the context of the CIOT bearer of the UE in a handover preparation stage.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • Fig. 7 is a schematic diagram of Embodiment 4 of the method for controlling a CIOT for a UE according to the present invention.
  • a target radio access network node can control the UE according to the received CIOT information about the UE.
  • the method comprises the following steps.
  • Step 701 A handover request message is transmitted to a target radio access network node by a source radio access network node.
  • the handover request contains CIOT information about the UE.
  • the target radio access network node stores the received CIOT information about the UE.
  • the source radio access network node can decide, according to the CIOT capacity supported by the target radio access network node, whether to transmit the CIOT information about the UE or whether to hand over a CIOT bearer.
  • the source radio access network node if the target radio access network node does not support a CIOT or a user plane CIOT, the source radio access network node does not hand over the CIOT bearer to the target radio access network node, that is, the source radio access network node does not request radio resources for the CIOT bearer from the target radio access network node.
  • the source radio access network node can request to release a CIOT radio bearer.
  • Step 702 A handover request acknowledge message is returned to the source radio access network node by the target radio access network node.
  • Step 703 An RRC reconfiguration request message is transmitted to the UE by the source radio access network node.
  • Step 704 An RRC reconfiguration completion message is returned to the target radio access network node by the UE.
  • Step 705 A path switch request message is transmitted to a core network node by the target radio access network node.
  • Step 706 A path switch acknowledge message is returned to the target radio access network node by the core network node.
  • the path switch acknowledge message contains the CIOT information about the UE.
  • the core network node can further decide, in combination with the CIOT capacity supported by the target radio access network node, whether to transmit the CIOT information about the UE to the target radio access network node or whether to hand over the CIOT bearer.
  • the target radio access network node does not support a CIOT or a user plane CIOT
  • the core network node does not hand over the CIOT bearer to the target radio access network node, that is, the core network node does not request radio resources for the CIOT bearer from the target radio access network node.
  • the core network node can request to release a CIOT radio bearer.
  • the information about the UE is the same as in the step 201 and will not be repeated here.
  • the CIOT capacity supported by the radio access network is the same as in the step 201 and will not be repeated here.
  • the target radio access network node stores the CIOT information about the UE received from the core network node. After the handover is completed, this target radio access network node becomes a radio access network node serving the UE, and this radio access network node can control the UE according to the received CIOT information about the UE.
  • the specific process is as described in the step 202.
  • Embodiment 4 has the following advantages in terms of the backward compatibility: when the source radio access network node does not support the CIOT capacity and the target radio access network node supports the CIOT capacity, in the X2 handover process, the source radio access network node will not inform the target radio access network node of the CIOT information about the UE. In this case, it is very necessary to inform the target radio access network node of the CIOT information about the UE through the core network node.
  • the target radio access network node can possibly receive, from both the source radio access network node and the core network node, the CIOT information about the UE.
  • the target radio access network node should take the latest received CIOT information about the UE as the criterion. That is, the CIOT information about the UE received from the source radio access network node is replaced with the CIOT information about the UE received from the core network node.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • Fig. 8 is a schematic diagram of Embodiment 5 of the method for controlling a CIOT for a UE according to the present invention.
  • a target radio access network node receives, from the core network node, CIOT information about the UE.
  • the target radio access network node can control the UE according to the received CIOT information about the UE.
  • This embodiment is another specific implementation corresponding to the method shown in Fig. 2. As shown in Fig. 8, this method comprises the following steps: there are two ways of informing the target radio access network node of the CIOT information about the UE, i.e., step 801 and step 802.
  • Step 801 A handover required is initiated to a core network node by a source radio access network node.
  • the message can contain the CIOT information about the UE.
  • the core network node forwards the CIOT information about the UE to a target radio access network node.
  • the core network node can further determine, in combination with the CIOT capacity supported by the target radio access network node, the CIOT information about the UE or whether to hand over a CIOT bearer.
  • the source radio access network node if the target radio access network node does not support a CIOT or a user plane CIOT, the source radio access network node does not hand over the CIOT bearer to the target radio access network node, that is, the source radio access network node does not request radio resources for the CIOT bearer from the target radio access network node.
  • the CIOT information about the UE is as described in the step 201 and will not be repeated here.
  • the CIOT capacity supported by the radio access network node is the same as in the step 201 and will not be repeated here.
  • Step 802 A handover request message is transmitted to a target radio access network node by a core network node.
  • the message can contain the CIOT information about the UE.
  • the contained CIOT information about the UE can be CIOT information about the UE received from the source radio access network node by the core network node, or CIOT information about the UE directly generated by the core network node.
  • the CIOT information about the UE is the same as in the step 201 and will not be repeated here.
  • the CIOT capacity supported by the radio access network node is as described in the step 201 and will not be repeated here.
  • the target radio access network node stores the CIOT information about the UE received from the core network node.
  • Step 803 A handover response message is transmitted to the core network node by the target radio access network node.
  • Step 804 The handover command message is transmitted to the source radio access network node by the core network node.
  • Step 805 An RRC reconfiguration command is transmitted to the UE by the source radio access network node.
  • Step 806 A reconfiguration completion message is transmitted to the target radio access network node by the UE.
  • Step 807 A handover notification is transmitted to the core network node by the target radio access network node, so as to inform that the handover is completed.
  • this target radio access network node becomes a radio access network node serving the UE, and this radio access network node can control the access of the UE according to the received CIOT information about the UE.
  • the specific process is as described in the step 202 and will not be repeated here.
  • Embodiment 6 is a diagrammatic representation of Embodiment 6
  • Fig. 9 is a schematic diagram of Embodiment 6 of the method for controlling a CIOT for a UE according to the present invention.
  • a target radio access network node receives, from the core network node, CIOT information about the UE.
  • a source radio access network node supports a control plane CIOT only, while the target radio access network node supports a user plane CIOT only.
  • the method comprises the following steps.
  • Step 901 CIOT information about a UE stored by a source radio access network node is a user plane CIOT; and, when a handover occurs, the source radio access network node finds that a target radio access network node supports the user plane CIOT only, and the source radio access network node transmits a handover required to a core network node.
  • the CIOT information about the UE is as described in the step 201 and will not be repeated here.
  • the CIOT capacity supported by the radio access network is the same as in the step 201 and will not be repeated here.
  • Step 902 When the core network node finds that the target radio access network node supports the user plane CIOT only, the core network node transmits a handover request message to the target radio access network node.
  • the handover request message contains the CIOT information about the UE and a CIOT bearer to be established.
  • the CIOT information about the UE is the same as in the step 201 and will not be repeated here.
  • the CIOT capacity supported by the radio access network is the same as in the step 201 and will not be repeated here.
  • the target radio access network node stores the CIOT information about the UE received from the core network node.
  • Step 903 A handover request acknowledge message is transmitted to the core network node by the target radio access network node.
  • the handover request acknowledge message contains a data forward address for the CIOT bearer.
  • Step 904 A handover response message is transmitted to the source radio access network node by the core network node.
  • the handover response message contains the data forward address for the CIOT bearer.
  • the source radio access network node transmits, to the data forward address, data that has been not yet transmitted in the control plane and the sequence number of the data.
  • Step 905 An RRC reconfiguration command is transmitted to the UE by the source radio access network node.
  • the RRC reconfiguration command message contains the CIOT information about the UE and the CIOT bearer to be established.
  • Step 906 A reconfiguration completion message is transmitted to the target radio access network node by the UE.
  • Step 907 A handover notification is transmitted to the core network node by the target radio access network node, so as to inform that the handover is completed.
  • this target radio access network node becomes a radio access network node serving the UE, and this radio access network node can control the access of the UE according to the received CIOT information about the UE.
  • the specific process is as described in the step 202 and will not be repeated here.
  • the radio access network node can optimize the data transmission mode of the UE, so that the signaling overhead is saved and the time delay for the UE to access a network is reduced.
  • Embodiment 7 is a diagrammatic representation of Embodiment 7:
  • Fig. 10 is a schematic diagram of Embodiment 7 of the method for controlling a CIOT for a UE according to the present invention.
  • a radio access network node acquires, from a core network node, CIOT control plane information about the UE.
  • the radio access network node can control the UE as desired based on the received CIOT information about the UE.
  • the method comprises the following steps.
  • Step 1001 An RRC connection is established between a UE and a radio access network node.
  • Step 1002 An initial UE message is transmitted to a core network node by the radio access network node.
  • the initial UE message contains a request to establish a control plane CIOT.
  • Step 1003 A new connection setup request message is transmitted to the radio access network node by the core network node.
  • the first radio access network node is aware of the establishment of the control plane CIOT.
  • the specific operation to the control plane CIOT is as described in the step 302 and will not be repeated here.
  • the core network node can decide, according to the CIOT capacity supported by the radio access network node, whether to transmit a new connection setup request message. In some implementations, if the radio access network node does not support a CIOT or a control plane CIOT, the core network node does not establish a CIOT control plane and does not transmit a new connection setup request message.
  • the core network node transmits a new connection setup request message.
  • the message comprises the CIOT information about the UE.
  • the CIOT information about the UE is as described in the step 201.
  • the radio access network node stores the acquired CIOT information about the UE, and then controls the UE as desired.
  • the specific operation is as described in the step 202 and will not be repeated here.
  • Fig. 11 is a schematic diagram of a composition structure of a preferred radio access network node equipment according to the present invention.
  • the radio access network node equipment comprises: a receiving module and a control module, wherein:
  • the receiving module is configured to acquire, from a second radio network node, a core network node or a UE, CIOT information about the UE;
  • control module is configured to control the UE based on the CIOT information about the UE.
  • the radio access network node equipment further comprises a storage module configured to store the CIOT information about the UE.
  • the radio access network node equipment shown in Fig. 11 can further comprise a transmitting module configured to transmit the CIOT information about the UE to other equipments.
  • Fig. 12 is a schematic diagram of a composition structure of a preferred user equipment according to the present invention.
  • the user equipment comprises a receiving module and a control module, wherein:
  • the receiving module is configured to acquire, from a radio network node, a core network node or other UEs, CIOT information about a UE;
  • control module is configured to control the UE based on the CIOT information about the UE.
  • the user equipment shown in Fig. 12 can further comprise a transmitting module configured to transmit the CIOT information about the UE to other equipments.

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

Abstract

La présente invention concerne un procédé et un système de communication pour faire converger un système de communication de cinquième génération (5G) pour prendre en charge des débits de données supérieurs dépassant ceux d'un système de quatrième génération (4G) avec une technologie d'Internet des objets (IoT). La présente invention peut s'appliquer à des services intelligents sur la base de la technologie de communication 5G et de la technologie d'IoT, tels que des services de maison intelligente, d'immeuble intelligent, de ville intelligente, de voiture intelligente, de voiture connectée, de soins de santé, d'enseignement numérique, de commerce de détail intelligent, de sécurité et de sûreté. La présente invention concerne un procédé pour commander un Internet des objets cellulaire (CIoT) pour un équipement utilisateur (UE), consistant : à acquérir, par un premier nœud de réseau d'accès radio, des informations de CIoT concernant un UE ; à stocker, par le premier nœud de réseau d'accès radio, les informations de CIoT acquises concernant l'UE ; et à commander, par le premier nœud de réseau d'accès radio, l'UE sur la base des informations de CIoT acquises concernant l'UE. La présente invention concerne également un autre procédé pour commander un CIoT pour un UE, et un équipement correspondant. Grâce aux solutions techniques divulguées par la présente invention, le surdébit de signalisation peut être économisé, et le délai pour qu'un UE accède à un réseau peut être raccourci.
PCT/KR2017/003052 2016-04-01 2017-03-22 Procédé et équipement pour commander un ciot pour un ue WO2017171296A1 (fr)

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