[go: up one dir, main page]

WO2020034343A1 - Communication ultra fiable à l'aide d'une seule session d'unité de données par paquets - Google Patents

Communication ultra fiable à l'aide d'une seule session d'unité de données par paquets Download PDF

Info

Publication number
WO2020034343A1
WO2020034343A1 PCT/CN2018/108817 CN2018108817W WO2020034343A1 WO 2020034343 A1 WO2020034343 A1 WO 2020034343A1 CN 2018108817 W CN2018108817 W CN 2018108817W WO 2020034343 A1 WO2020034343 A1 WO 2020034343A1
Authority
WO
WIPO (PCT)
Prior art keywords
network
network device
transmission path
over
duplicate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/108817
Other languages
English (en)
Inventor
Jinguo Zhu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CN201880099334.5A priority Critical patent/CN112970323B/zh
Priority to PCT/CN2018/108817 priority patent/WO2020034343A1/fr
Publication of WO2020034343A1 publication Critical patent/WO2020034343A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H04W76/16—Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This document is directed generally to wireless communications.
  • Wireless communication technologies are moving the world toward an increasingly connected and networked society.
  • the rapid growth of wireless communications and advances in technology has led to greater demand for capacity and connectivity.
  • Other aspects, such as energy consumption, device cost, spectral efficiency, and latency are also important in meeting the needs of various communication scenarios.
  • next generation systems and wireless communication techniques need to provide support for an increased number of users and devices, as well as support for higher data rates, thereby requiring user equipment to implement energy conservation techniques.
  • Embodiments of the disclosed technology advantageously establish a duplication transmission path when a quality of service (QoS) requirement cannot be met by a current network or current transmission path.
  • QoS quality of service
  • a wireless communication method includes receiving an indication that a first data flow over a first network is configured to be duplicated, within a single PDU session, as a second data flow over a second network, generating, based on a first packet, a duplicate first packet, and transmitting, over the second network, the duplicate first packet.
  • a wireless communication method includes receiving, at a first network device over a first network, a request to establish a data transmission path with a particular QoS requirement within a PDU session, and determining that the particular QoS requirement can be satisfied by establishing the data transmission path over a second network different from the first network.
  • a wireless communication method includes selecting, at a first network device, a second network device to support duplicate communications, within a single PDU session, over a first network and a second network, receiving, from a third network device, an indication of an establishment of a duplicate transmission path that duplicates a data transmission path, and transmitting, to the second network device, an indication to perform the duplicate communications.
  • the above-described methods are embodied in the form of processor-executable code and stored in a computer-readable program medium.
  • a device that is configured or operable to perform the above-described methods is disclosed.
  • FIG. 1 shows an example of a base station (BS) and user equipment (UE) in wireless communication, in accordance with some embodiments of the presently disclosed technology.
  • BS base station
  • UE user equipment
  • FIG. 2 shows an example architecture of the Fifth Generation Core (5GC) network.
  • 5GC Fifth Generation Core
  • FIG. 3 shows an example timing flowchart for establishing a PDU session.
  • FIG. 4 shows an example architecture for establishing two transmission paths for ultra-reliable communication in a 5GC network.
  • FIG. 5 shows an example timing flowchart for establishing a second transmission path.
  • FIG. 6 shows another example timing flowchart for establishing a second transmission path.
  • FIG. 7 shows an example of a wireless communication method, in accordance with some embodiments of the presently disclosed technology.
  • FIG. 8 shows another example of a wireless communication method, in accordance with some embodiments of the presently disclosed technology.
  • FIG. 9 shows yet another example of a wireless communication method, in accordance with some embodiments of the presently disclosed technology.
  • FIG. 10 is a block diagram representation of a portion of an apparatus, in accordance with some embodiments of the presently disclosed technology.
  • a duplication transmission path is set up via second Next Generation Random Access Network (NG-RAN) to transmit the data, thereby achieving higher reliability using the redundant transmission.
  • NG-RAN Next Generation Random Access Network
  • the disclosed technology provides methods and systems to establish the duplication transmission path via second NG-RAN, and in particular, embodiments in which one packet data unit (PDU) session has two transmission paths.
  • PDU packet data unit
  • FIG. 1 shows an example of a wireless communication system (e.g., an LTE, 5G or New Radio (NR) cellular network) that includes a BS 120 and one or more user equipment (UE) 111, 112 and 113.
  • the UEs may provide the BS with an indication (131, 132, 133) that they are able to support duplicated communications, and receive instructions from the BS (141, 142, 143) to set up a duplicated service or QoS data flow.
  • the UE may be, for example, a smartphone, a tablet, a mobile computer, a machine to machine (M2M) device, a terminal, a mobile device, an Internet of Things (IoT) device, and so on.
  • M2M machine to machine
  • IoT Internet of Things
  • the present document uses examples from the 3GPP New Radio (NR) network architecture and 5G protocol only to facilitate understanding and the disclosed techniques and embodiments may be practiced in other wireless systems that use different communication protocols than the 3GPP protocols.
  • NR 3GPP New Radio
  • FIG. 2 shows an example architecture of the Fifth Generation Core (5GC) network, which includes the UE 210 that communicates with the data network (DN) 270 using, in part, the following network subsystems:
  • 5GC Fifth Generation Core
  • ⁇ NG-RAN (220, 221) that manages the radio resource between the UE and NG-RAN.
  • An Xn interface is used between two NG-RANs.
  • the Access and Mobility Management Function (AMF) 230 includes the following functionalities: Registration management, Connection management, Reachability management and Mobility Management. This function also perform the access authentication and access authorization.
  • the AMF is the NAS security termination and relay the SM NAS between UE and SMF, etc.
  • the Session Management Function (SMF) 240 includes the following functionalities: session establishment, modification and release, UE IP address allocation &management (including optional authorization functions) , selection and control of UP function, downlink data notification, etc.
  • the User Plane Function (UPF) 250 includes the following functionalities: serving as an anchor point for intra-/inter-radio access technology (RAT) mobility, packet routing &forwarding, traffic usage reporting, QoS handling for the user plane, downlink packet buffering and downlink data notification triggering, etc.
  • RAT intra-/inter-radio access technology
  • the Policy Control Function (PCF) 260 provides UE Access related policy rules to AMF, provides the UE policy to UE via AMF, and provides session related policy rules such as QoS policy and traffic routing policy to SMF.
  • PCF Policy Control Function
  • a PDU Session is an association between the UE and a Data Network that provides a PDU connectivity service.
  • PDU Sessions are established, modified and released using NAS SM signaling exchanged over N1 between the UE and the SMF.
  • FIG. 3 shows an example timing flowchart for establishing a PDU session.
  • the messages communicated between the UE 310, NG-RAN 320, AMF 330, SMF 340 and UPF 350, as shown in FIG. 3, as described below.
  • NAS Message (DNN, PDU Session ID, N1 SM container (PDU Session Establishment Request) ) .
  • DNN PDU Session ID
  • N1 SM container N1 SM container
  • PDU Session Establishment Request PDU Session Establishment Request
  • the UE In order to establish a new PDU Session, the UE generates a new PDU Session ID.
  • the UE initiates the UE Requested PDU Session Establishment procedure by the transmission of a NAS message containing a PDU Session Establishment Request within the N1 SM container.
  • the NAS message sent by the UE is encapsulated by the AN in a N2 message towards the AMF.
  • the AMF selects an SMF based on the requested DNN and other information.
  • the AMF sends Nsmf_PDUSession_CreateSMContext Request (SUPI, DNN, PDU Session ID, AMF ID, N1 SM container (PDU Session Establishment Request) .
  • SUPI Subscribescription Permanent Identifier
  • the AMF ID is the UE's GUAMI (Globally Unique AMF ID) which uniquely identifies the AMF serving the UE.
  • the AMF forwards the PDU Session ID together with the N1 SM container containing the PDU Session Establishment Request received from the UE.
  • the SMF If the SMF is able to process the PDU Session establishment request, the SMF creates an SM context and responds to the AMF by providing an SM Context Identifier in Nsmf_PDUSession_CreateSMContext Response.
  • the SMF selects a UPF based on the DNN and other information.
  • the SMF sends an N4 Session Establishment Request to the UPF and provides Packet detection, enforcement and reporting rules to be installed on the UPF for this PDU Session. If CN Tunnel Info is allocated by the SMF, the CN Tunnel Info is provided to UPF in this step.
  • the UPF acknowledges by sending an N4 Session Establishment Response. If CN Tunnel Info is allocated by the UPF, the CN Tunnel Info is provided to SMF in this step.
  • SMF to AMF Namf_Communication_N1N2MessageTransfer (PDU Session ID, N2 SM information (PDU Session ID, QFI (s) , QoS Profile (s) , N3 CN Tunnel Info) , N1 SM container (PDU Session Establishment Accept) ) .
  • the N2 SM information carries information that the AMF shall forward to the NG-RAN which includes the N3 CN Tunnel Info corresponds to the Core Network address of the N3 tunnel corresponding to the PDU Session, the QoS profiles and the corresponding QFI (QoS Flow Identifier) and the PDU Session ID.
  • the N1 SM container contains the PDU Session Establishment Accept that the AMF shall provide to the UE.
  • AMF to NG-RAN N2 PDU Session Request (N2 SM information, NAS message (PDU Session ID, N1 SM container (PDU Session Establishment Accept) ) ) ) .
  • the AMF sends the NAS message containing PDU Session ID and PDU Session Establishment Accept targeted to the UE and the N2 SM information received from the SMF within the N2 PDU Session Request to the NG-RAN.
  • the NG-RAN may issue AN specific signalling exchange with the UE that is related with the information received from SMF. For example, in case of a 3GPP RAN, an RRC Connection Reconfiguration may take place with the UE establishing the necessary RAN resources related to the QoS Rules for the PDU Session request. NG-RAN forwards the NAS message (PDU Session ID, N1 SM container (PDU Session Establishment Accept) ) to the UE. NG-RAN also allocates AN N3 tunnel information for the PDU Session.
  • PDU Session ID N1 SM container (PDU Session Establishment Accept)
  • N2 PDU Session Response PDU Session ID, Cause, N2 SM information (PDU Session ID, AN Tunnel Info, List of accepted/rejected QFI (s) ) ) .
  • the AN Tunnel Info corresponds to the Access Network address of the N3 tunnel corresponding to the PDU Session.
  • AMF to SMF Nsmf_PDUSession_UpdateSMContext Request (N2 SM information) .
  • the AMF forwards the N2 SM information received from NG-RAN to the SMF. If the list of rejected QFI (s) is included in N2 SM information, the SMF shall release the rejected QFI (s) associated QoS profiles.
  • the SMF initiates an N4 Session Modification procedure with the UPF.
  • the SMF provides AN Tunnel Info to the UPF as well as the corresponding forwarding rules.
  • SMF to AMF Nsmf_PDUSession_UpdateSMContext Response (Cause) .
  • the PDU Session is successfully established.
  • the UE may obtain IP addresses via the user plane of established PDU Session.
  • the RAN may decide that it cannot meet the high reliability requirement requested by SMF. In this case a duplication transmission path may be needed to support the high reliability requirement.
  • This disclosure provides a mechanism to establish a duplication transmission path towards same A-UPF within one PDU Session.
  • FIG. 4 shows an example architecture for establishing two transmission paths for ultra-reliable communication in a 5GC network, in accordance with some embodiments of the presently disclosed technology.
  • the A-UPF 450 performs duplication and forwards the downlink service data via two transmission paths (480, 481) within one PDU Session towards the UE 410.
  • the UE 410 performs duplication and forwards the downlink service data via two transmission paths (480, 481) within one PDU Session towards the A-UPF 450.
  • the UE and A-UPF should perform packets duplication detection and eliminate the duplicated packets.
  • the transmission paths may have same QoS flows or different QoS flows to deliver the data packets.
  • FIG. 5 shows an example timing flowchart for establishing a duplication transmission path.
  • the messages communicated between the UE 510, NG-RAN1 (520) , NG-RAN2 (521) , AMF 530, SMF 540 and UPF 550, as shown in FIG. 5, as described below.
  • Steps 1 through 7 are similar to those described in the context of FIG. 4, and in some embodiments, include the following:
  • step 1 the UE may provide a capability indication to indicate it supports establishment of duplication transmission path within one PDU session.
  • step 4 based on the capability indication in step 1 and if the QoS requirement of the QoS flow indicates ultra-reliability requirement, the SMF may select a UPF which also supports establishment of duplication transmission path within one PDU session.
  • step 5/6 if the SMF has selected a UPF which supports establishment of duplication transmission path within one PDU session, it may provide an indication to NG-RAN1 that this PDU session can be established with duplication transmission path.
  • the NG-RAN1 sends secondary NG-RAN addition request message NG-RAN2 to allocate radio resources to establish the second Data Radio Bearer for this QoS flow.
  • the NG-RAN2 If the NG-RAN2 is able to admit the resource request, it allocates respective radio resources and respective N3 tunnel resource and sends the NG-RAN N3 tunnel information in secondary NG-RAN addition request Acknowledge message.
  • the NG-RAN1 exchanges information with UE to establish the second radio connection between UE and NG-RAN2.
  • the UE replies the NG-RAN1 that the second radio connection has been completed.
  • the NG-RAN1 sends secondary NG-RAN addition request Complete message to NG-RAN2.
  • NG-RAN1 to AMF N2 PDU Session Response (PDU Session ID, Cause, N2 SM information (PDU Session ID, AN Tunnel Info, List of accepted/rejected QFI (s) ) ) .
  • the AN Tunnel Info corresponds to the NG-RAN1 and NG-RAN2 Access Network addresses of the N3 tunnel corresponding to the PDU Session.
  • the information in the List of accepted QFI (s) also indicate if duplicated transmission path has been established for this QoS flow or not.
  • AMF to SMF Nsmf_PDUSession_UpdateSMContext Request (N2 SM information) .
  • the AMF forwards the N2 SM information received from NG-RAN1 to the SMF. If the list of rejected QFI (s) is included in N2 SM information, the SMF shall release the rejected QFI (s) associated QoS profiles.
  • the SMF initiates an N4 Session Modification procedure with the UPF.
  • the SMF provides AN Tunnel Info to the UPF as well as the corresponding forwarding rules. If the NG-RAN1 indicates that the duplication transmission path has been established, the forwarding rules indicate that the service data flow needs to be duplicated and sent to both NG-RAN1 and NG-RAN2 via corresponding AN tunnel. In this case the same service data flows are transferred via two transmission paths, therefore extra reliability can be achieved.
  • the SMF notifies the UPF that particular service data flows need to be duplicated.
  • the UPF receives downlink packets, it duplicate the packets and send it via both transmission paths towards NG-RAN1 and NG-RAN2.
  • the NG-RAN1 and NG-RAN2 further forwards the downlink packets to UE.
  • step 10 the NG-RAN1 sends RRC message to UE to indicate that this particular QoS flow identified by QFI is to be duplicated and mapped to DRB to NG-RAN1 and DRB to NG-RAN2; or
  • step 15 the SMF sends NAS message to UE to indicate that the service data flow or QoS flow needs to be duplicated.
  • the UE duplicates the uplink packet and sends it to both NG-RAN1 and NG-RAN2 via two DRBs.
  • AMBR Access Maximum BitRate
  • NG-RAN1 should split the UE-AMBR (uplink and downlink) limit among the NG-RAN1 and NG-RAN2, and indicate the UE-AMBR limits to be enforced in NG-RAN2.
  • the UE and UPF needs to perform duplication detection to eliminate the duplicated packets.
  • the duplication detection solution is outside of this disclosure.
  • FIG. 6 shows another example timing flowchart for establishing a duplication transmission path.
  • the messages communicated between the UE 610, NG-RAN1 (620) , NG-RAN2 (621) , AMF 630, SMF 640 and UPF 650, as shown in FIG. 6, as described below.
  • Steps 1 through 7 are similar to those described in the context of FIG. 4, and in some embodiments, include the following:
  • step 1 the UE may provide a capability indication to indicate it supports establishment of duplication transmission path within one PDU session.
  • step 4 based on the capability indication in step 1 and if the QoS requirement of the QoS flow indicates ultra-reliability requirement, the SMF may select a UPF which also supports establishment of duplication transmission path within one PDU session.
  • N2 PDU Session Response PDU Session ID, Cause, N2 SM information (PDU Session ID, AN Tunnel Info, List of accepted/rejected QFI (s) ) ) .
  • the NG-RAN can still accept the establishment of the QoS flow.
  • the information of List of accepted indicates that the QoS request of the QoS Flow cannot be meet but duplication transmission path is available.
  • the AN Tunnel Info corresponds to the Access Network address of the N3 tunnel corresponding to the PDU Session.
  • AMF to SMF Nsmf_PDUSession_UpdateSMContext Request (N2 SM information) .
  • the AMF forwards the N2 SM information received from NG-RAN1 to the SMF. If the list of rejected QFI (s) is included in N2 SM information, the SMF shall release the rejected QFI (s) associated QoS profiles.
  • the SMF initiates an N4 Session Modification procedure with the UPF.
  • the SMF provides AN Tunnel Info to the UPF as well as the corresponding forwarding rules.
  • SMF to AMF Nsmf_PDUSession_UpdateSMContext Response (Cause) .
  • the SMF may decide to establish the duplication transmission path within the same PDU session. In this case the SMF may decides to establish a different QoS flow for the duplication transmission path, or establish same QoS flow for the duplication transmission path.
  • the SMF sends Namf_Communication_N1N2MessageTransfer (PDU Session ID, N2 SM information (PDU Session ID, QFI (s) , QoS Profile (s) , N3 CN Tunnel Info, duplication indication) , N1 SM container PDU Session Modification Request) ) .
  • the SMF includes an indication to indicate the NG-RAN1 to establish duplication transmission path via different NG-RAN for the QoS flows identified by QFI (s) of the PDU session.
  • the SMF may also include information in PDU Session Modification Request to indicate the UE that the service data flow or QoS flow needs to be duplicated.
  • the SMF may reselect an UPF supporting the establishment of duplication transmission path within one PDU session and provides two N3 CN Tunnel Info in the N2 SM information.
  • AMF to NG-RAN1 N2 PDU Session Request (N2 SM information, N1 SM NAS message) .
  • the AMF sends the N1 SM NAS message to the UE and the N2 SM information received from the SMF within the N2 PDU Session Request to the NG-RAN.
  • the NG-RAN1 If the NG-RAN1 receives indication to establish the duplication transmission path via different NG-RAN for the QoS flow identified by QFI, the NG-RAN1 sends secondary NG-RAN addition request message NG-RAN2 to allocate radio resources to establish the second Data Radio Bearer for this QoS flow.
  • the NG-RAN2 If the NG-RAN2 is able to admit the resource request, it allocates respective radio resources and respective N3 tunnel resource and sends the NG-RAN N3 tunnel information in secondary NG-RAN addition request Acknowledge message.
  • the NG-RAN1 exchanges information with UE to establish the second radio connection between UE and NG-RAN2.
  • the UE replies the NG-RAN1 that the second radio connection has been completed.
  • the NG-RAN1 sends secondary NG-RAN addition request Complete message to NG-RAN2.
  • N2 PDU Session Response PDU Session ID, Cause, N2 SM information (PDU Session ID, AN Tunnel Info, List of accepted/rejected QFI (s) ) ) .
  • the AN Tunnel Info corresponds to the NG-RAN2 Access Network addresses of the N3 tunnel corresponding to the PDU Session.
  • the information in the List of accepted QFI (s) also indicate if duplication transaction path has been established for this QoS flow or not.
  • AMF to SMF Nsmf_PDUSession_UpdateSMContext Request (N2 SM information) .
  • the AMF forwards the N2 SM information received from NG-RAN1 to the SMF.
  • the SMF initiates an N4 Session Modification procedure with the UPF.
  • the SMF provides AN Tunnel Info to the UPF as well as the corresponding forwarding rules. If the NG-RAN1 indicates that the duplication transmission path has been established, the forwarding rules indicate that the service data flow needs to be duplicated and send to both NG-RAN1 and NG-RAN2 via corresponding AN tunnel. In this case same service data flows are transferred via two transmission paths, therefore extra reliability can be achieved.
  • SMF to AMF Nsmf_PDUSession_UpdateSMContext Response (Cause) .
  • the SMF notifies the UPF that particular service data flows need to be duplicated.
  • the UPF receives downlink packets, it duplicate the packets and send it via two transmission paths towards NG-RAN1 and NG-RAN2.
  • the NG-RAN1 and NG-RAN2 forwards the downlink packets to UE.
  • step 16 the NG-RAN1 sends RRC message to UE to indicate that this particular QoS flow identified by QFI is to be duplicated and mapped to DRB to NG-RAN1 and DRB to NG-RAN2; or
  • step 12 the SMF sends NAS message to UE to indicate that the service data flow or QoS flow needs to be duplicated.
  • the UE duplicates the uplink packet and sends it to both NG-RAN1 and NG-RAN2 via two DRBs.
  • AMBR Access Maximum BitRate
  • NG-RAN1 should split the UE-AMBR (uplink and downlink) limit among the NG-RAN1 and NG-RAN2, and indicate the UE-AMBR limits to be enforced in NG-RAN2.
  • the UE and UPF needs to perform duplication detection to eliminate the duplicated packets.
  • the duplication detection solution is outside of this disclosure.
  • Embodiments of the disclosed technology may implement, at a UE, an exemplary method for ultra-reliable communication using a single packet data unit (PDU) session that includes:
  • Embodiments of the disclosed technology may implement, at a NG-RAN, an exemplary method for ultra-reliable communication using a single packet data unit (PDU) session that includes:
  • the method implemented at the NG-RAN may further include notifying the UE to duplicate the uplink packets of QoS flow and send the duplicated uplink packets via second NG-RAN.
  • Embodiments of the disclosed technology may implement, at an SMF, an exemplary method for ultra-reliable communication using a single packet data unit (PDU) session that includes:
  • the SMF may request NG-RAN1 to establish QoS, therein notifying the NG-RAN that duplication communication is allowed.
  • the SMF may request NG-RAN1 to establish QoS, and receive notification that the QoS is not meet by NG-RAN. Then, SMF further notifies the NG-RAN to establish duplication transmission path.
  • the SMF may further notify the UE to duplicate the uplink packets of service data flow or QoS flow and send the duplicated uplink packets via second NG-RAN.
  • Embodiments of the disclosed technology may implement, at a UPF, an exemplary method for ultra-reliable communication using a single packet data unit (PDU) session that includes:
  • FIG. 7 shows an example of a wireless communication method 700 for ultra-reliable communication using a single PDU session.
  • the method 700 includes, at step 710, receiving an indication that a first data flow over a first network is configured to be duplicated, within a single PDU session, as a second data flow over a second network.
  • the method 700 includes, at step 720, generating, based on a first packet, a duplicate first packet.
  • the method 700 includes, at step 730, transmitting, over the second network, the duplicate first packet.
  • the method 700 further includes the steps of transmitting an indication of a capability to support duplicate communications, and transmitting, over the first network, the first packet.
  • the first data flow and the second data flow have an identical quality of service (QoS) .
  • the method 700 further includes the steps of receiving, over the first network, a second packet comprising a data message, receiving, over the second network, a duplicate second packet that is a duplicate of the second packet, and eliminating the duplicate second packet by determining that the data message in the second packet was received over the first network.
  • FIG. 8 shows an example of a wireless communication method 800 for ultra-reliable communication using a single PDU session.
  • the method 800 includes, at step 810, receiving, at a first network device over a first network, a request to establish a data transmission path with a particular QoS requirement within a PDU session.
  • the method 800 includes, at step 820, determining that the particular QoS requirement can be satisfied by establishing the data transmission path over a second network different from the first network.
  • the method 800 further comprises the steps of establishing the data transmission path over the second network, and transmitting, to a second network device, an indication of establishment of the data transmission path over the second network.
  • the method 800 further comprises the steps of transmitting, to a second network device, an indication of an inability to establish the data transmission path over a first network, receiving, from the second network device, an additional instruction, and establishing, based on the additional instruction, the data transmission path over the second network.
  • the method 800 may be implemented in a system where the first network device is a NG-RAN, and the second network device is an SMF.
  • FIG. 9 shows an example of a wireless communication method 900 for ultra-reliable communication using a single packet data unit (PDU) session.
  • the method 900 includes, at step 910, selecting, at a first network device, a second network device to support duplicate communications, within a single PDU session, over a first network and a second network.
  • the method 900 includes, at step 920, receiving, from a third network device, an indication of an establishment of a duplicate transmission path that duplicates a data transmission path.
  • the method 900 includes, at step 930, transmitting, to the second network device, an indication to perform the duplicate communications.
  • the method 900 may further include the steps of receiving, from a terminal, an indication of a capability to support the duplicate communications, transmitting, to the third network device, an indication that the duplicate communications are allowed, and transmitting, to the third network device, a request to establish the duplicate transmission path via fourth network device.
  • the method 900 may be implemented in a system where the first network device is an SMF, the second network device is a UPF, the third network device is a first NG-RAN, and the fourth network device is a second NG-RAN.
  • FIG. 10 is a block diagram representation of a portion of an apparatus, in accordance with some embodiments of the presently disclosed technology.
  • An apparatus 1005 such as a base station or a wireless device (or UE) , can include processor electronics 1010 such as a microprocessor that implements one or more of the techniques presented in this document.
  • the apparatus 1005 can include transceiver electronics 1015 to send and/or receive wireless signals over one or more communication interfaces such as antenna (s) 1020.
  • the apparatus 1005 can include other communication interfaces for transmitting and receiving data.
  • Apparatus 1005 can include one or more memories (not explicitly shown) configured to store information such as data and/or instructions.
  • the processor electronics 1010 can include at least a portion of the transceiver electronics 1015. In some embodiments, at least some of the disclosed techniques, modules or functions are implemented using the apparatus 1005.
  • a computer-readable medium may include removable and non-removable storage devices including, but not limited to, Read Only Memory (ROM) , Random Access Memory (RAM) , compact discs (CDs) , digital versatile discs (DVD) , etc. Therefore, the computer-readable media can include a non-transitory storage media.
  • program modules may include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types.
  • Computer-or processor-executable instructions, associated data structures, and program modules represent examples of program code for executing steps of the methods disclosed herein. The particular sequence of such executable instructions or associated data structures represents examples of corresponding acts for implementing the functions described in such steps or processes.
  • a hardware circuit implementation can include discrete analog and/or digital components that are, for example, integrated as part of a printed circuit board.
  • the disclosed components or modules can be implemented as an Application Specific Integrated Circuit (ASIC) and/or as a Field Programmable Gate Array (FPGA) device.
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • DSP digital signal processor
  • the various components or sub-components within each module may be implemented in software, hardware or firmware.
  • the connectivity between the modules and/or components within the modules may be provided using any one of the connectivity methods and media that is known in the art, including, but not limited to, communications over the Internet, wired, or wireless networks using the appropriate protocols.

Landscapes

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

Abstract

La présente invention concerne des procédés, des systèmes et des dispositifs pour une communication ultra fiable dans une seule session d'unité de données par paquets (PDU). Un procédé de communication sans fil donné à titre d'exemple comprend la réception d'une indication du fait qu'un premier flux de données dans un premier réseau est configuré pour être dupliqué, dans une seule session PDU, pour obtenir un second flux de données dans un second réseau, la génération, sur la base d'un premier paquet, d'un premier paquet dupliqué, et la transmission, dans le second réseau, du premier paquet dupliqué. Un autre procédé donné à titre d'exemple comprend la réception, au niveau d'un premier dispositif de réseau dans un premier réseau, d'une demande pour établir un chemin de transmission de données avec une exigence de qualité de service (QoS) particulière dans une session PDU, et la détermination du fait que l'exigence de QoS particulière peut être satisfaite par l'établissement du chemin de transmission de données dans un second réseau différent du premier réseau.
PCT/CN2018/108817 2018-09-29 2018-09-29 Communication ultra fiable à l'aide d'une seule session d'unité de données par paquets Ceased WO2020034343A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880099334.5A CN112970323B (zh) 2018-09-29 2018-09-29 无线通信方法、无线通信装置、计算机可读存储介质
PCT/CN2018/108817 WO2020034343A1 (fr) 2018-09-29 2018-09-29 Communication ultra fiable à l'aide d'une seule session d'unité de données par paquets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/108817 WO2020034343A1 (fr) 2018-09-29 2018-09-29 Communication ultra fiable à l'aide d'une seule session d'unité de données par paquets

Publications (1)

Publication Number Publication Date
WO2020034343A1 true WO2020034343A1 (fr) 2020-02-20

Family

ID=69525033

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/108817 Ceased WO2020034343A1 (fr) 2018-09-29 2018-09-29 Communication ultra fiable à l'aide d'une seule session d'unité de données par paquets

Country Status (2)

Country Link
CN (1) CN112970323B (fr)
WO (1) WO2020034343A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017215670A1 (fr) * 2016-06-17 2017-12-21 Huawei Technologies Co., Ltd. Procédé et système de gestion de session permettant des communications ultra-fiables et à faible latence dans des scénarios à haute mobilité

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110194433A1 (en) * 2010-02-05 2011-08-11 Qualcomm Incorporated Managing dedicated channel resource allocation to user equipment based on radio bearer traffic within a wireless communications system
CN108353039B (zh) * 2015-11-05 2022-04-29 Lg 电子株式会社 在无线通信系统中发送和接收数据的方法和支持该方法的装置
US10362507B2 (en) * 2016-06-10 2019-07-23 Huawei Technologies Co., Ltd. Systems and method for quality of service monitoring, policy enforcement, and charging in a communications network

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017215670A1 (fr) * 2016-06-17 2017-12-21 Huawei Technologies Co., Ltd. Procédé et système de gestion de session permettant des communications ultra-fiables et à faible latence dans des scénarios à haute mobilité

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Study on Architecture for Next Generation System(Release 14)", 3GPP TR 23.799, no. V0.4.0, 27 April 2016 (2016-04-27), XP051123441 *
ZTE CORPORATION: "NW slicing for high layer functional split", 3GPP TSG-RAN WG3 NR ADHOC R3-180139, vol. RAN WG3, 12 January 2018 (2018-01-12), XP051387180 *

Also Published As

Publication number Publication date
CN112970323A (zh) 2021-06-15
CN112970323B (zh) 2023-03-31

Similar Documents

Publication Publication Date Title
US11259217B2 (en) Method and apparatus for supporting session continuity for 5G cellular network
US11297543B2 (en) Method and apparatus for managing session to change a user plane function in a wireless communication system
US10849088B2 (en) Method for supporting efficient PDU session activation and deactivation in cellular networks
US10568061B1 (en) Method for supporting efficient PDU session activation and deactivation in cellular networks
US11683723B2 (en) Methods and system for offloading data traffic
JP2023514095A (ja) アクセスバックホール統合ネットワーク内のドナー間トポロジ適合
CN104469852B (zh) 建立本地分流承载的方法和设备
JP2020505877A (ja) ベアラ変換
WO2020034344A1 (fr) Communication ultrafiable utilisant de multiples sessions d'unité de données par paquets
WO2019196000A1 (fr) Procédés et système pour réaliser une communication par chemin rapide de petites données
CN116134955A (zh) 在无线通信设备处自主激活特征以满足消费通信服务的应用的生存时间
CN104144403B (zh) 一种通信方法及设备、系统
WO2020034343A1 (fr) Communication ultra fiable à l'aide d'une seule session d'unité de données par paquets
US20180317132A1 (en) Bicasting Data to Wireless Terminal over At Least Two Air Interfaces

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18929968

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 26.08.2021)

122 Ep: pct application non-entry in european phase

Ref document number: 18929968

Country of ref document: EP

Kind code of ref document: A1