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WO2018145522A1 - Procédé de traitement de service de réalité virtuelle, dispositif d'élément de réseau d'accès sans fil et support de stockage - Google Patents

Procédé de traitement de service de réalité virtuelle, dispositif d'élément de réseau d'accès sans fil et support de stockage Download PDF

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Publication number
WO2018145522A1
WO2018145522A1 PCT/CN2017/117568 CN2017117568W WO2018145522A1 WO 2018145522 A1 WO2018145522 A1 WO 2018145522A1 CN 2017117568 W CN2017117568 W CN 2017117568W WO 2018145522 A1 WO2018145522 A1 WO 2018145522A1
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WIPO (PCT)
Prior art keywords
network element
access network
element device
radio access
fov
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Ceased
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PCT/CN2017/117568
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English (en)
Chinese (zh)
Inventor
李刚
刘志明
陈亚迷
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.)
China Mobile Communications Group Co Ltd
Research Institute of China Mobile Communication Co Ltd
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Research Institute of China Mobile Communication Co Ltd
China Mobile Communications Corp
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Publication of WO2018145522A1 publication Critical patent/WO2018145522A1/fr
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Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows

Definitions

  • the present application relates to a wireless communication technology, and in particular, to a virtual reality service processing method, a radio access network element device, and a storage medium.
  • VR virtual reality
  • AR Augmented Reality
  • 4K resolution video playback requires 25Mbps bandwidth
  • single-eye 8K resolution 3D panoramic video playback requires 5Gbps bandwidth
  • immersive VR has strict requirements for delay (MTP-Motion to Photon, 3D due to user's viewing angle change)
  • the scene switching delay is less than 20ms).
  • FoV field of view
  • the corresponding frame data is constructed according to the user's perspective posture.
  • One frame of data only contains partial visual information equal to or larger than the angle of view, and the terminal determines the posture position of the user's perspective, and sends the interactive signal to the cloud.
  • Request corresponding frame data including terminal processing delay, network transmission delay, and cloud processing delay.
  • the bandwidth requirement is reduced, the delay requirement is higher, and the "time delay is used for bandwidth".
  • Facebook's FoV transmission scheme based on pyramid projection can reduce the average bit rate of media files to 20% of the original image quality of ERP projection. Sacrifice part of the image quality experience to reduce the need for MTP 20ms interaction.
  • the pre-generated corresponding 30 cone full-view files are stored on the server (storage delay).
  • FoV can reduce the demand for the network
  • the FoV transmission scheme is currently a hot spot.
  • FoV-based transmission as an example, as shown in Figure 1, when the perspective FoV changes, if the perspective FoV changes, the threshold does not exceed the threshold. There is no need to retransmit the FoV data; if the angle of view FoV changes beyond the threshold and affects the VR resolution, the new FoV data needs to be retransmitted. Therefore, a large pulse-type traffic transmission may occur, which may cause great impact on the network. The impact.
  • the embodiments of the present application are intended to provide a virtual reality service processing method, a radio access network element device, and a storage medium, which at least solve the problems existing in the prior art.
  • a virtual reality service processing method includes:
  • the radio access network element device configures, for the UE, first information required for retransmitting the FoV data according to the current target requirement of the UE.
  • the target requirement includes a requirement for network bandwidth and delay.
  • the first information includes: a reserved resource size and/or an adjusted cache size.
  • the method further includes:
  • the radio access network element device increases the air interface scheduling priority after receiving the FoV handover request.
  • the method further includes:
  • the radio access network element device After receiving the FoV handover request, the radio access network element device notifies the UE of the radio status, and is used by the UE to implement bandwidth estimation on the VR coding rate.
  • the wireless status includes: a wireless network bandwidth estimation and/or a base station side cache size.
  • the receiving unit is configured to receive a service processing request initiated by the UE, and parse the service processing request as a field of view FoV switching request;
  • a requirement determining unit configured to determine a current target requirement of the UE according to the FoV switching request
  • the first processing unit is configured to configure, for the UE according to the current target requirement of the UE, first information required for retransmitting the FoV data.
  • the target requirement includes a requirement for network bandwidth and delay.
  • the first information includes: a reserved resource size and/or an adjusted cache size.
  • the radio access network element device further includes: an adjusting unit, configured to:
  • the air interface scheduling priority is increased.
  • the radio access network element device further includes: a notification unit, configured to:
  • the radio status is notified to the UE, and the UE is used to implement bandwidth estimation on the VR coding rate.
  • the wireless status includes: a wireless network bandwidth estimation and/or a base station side cache size.
  • a virtual reality service processing method includes:
  • the radio access network element device receives the service processing request or the user plane coded data initiated by the server, and parses out the data transmission priority list carried in the service processing request; the data transmission priority list is the perceived UE application code rate. The resulting feedback;
  • the radio access network element device performs selective data transmission according to the air interface fluctuation and the data transmission priority list.
  • the radio access network element device performs selective data transmission according to the air interface fluctuation and the data transmission priority list, and specifically includes:
  • the radio access network element device performs data transmission according to the priority order in the data transmission priority list if the radio access network element device determines that the permission is met according to the air interface fluctuation;
  • the radio access network element device determines that the non-conformity is determined according to the air interface fluctuation, according to the data transmission priority list, the data that is sorted in the priority order is discarded.
  • the method further includes:
  • the radio access network element device After receiving the FoV handover completion request, the radio access network element device performs a process of restoring the air interface resource and/or the buffer size of the base station side.
  • the parsing unit is configured to receive the service processing request or the user plane encoded data initiated by the server, and parse out the data transmission priority list carried in the service processing request; the data transmission priority list is configured to perceive the UE application code rate Feedback formed
  • a transmission decision unit configured to perform selective data transmission based on air interface fluctuations and the data transmission priority list.
  • the transmission decision unit is further configured to:
  • the data transmission is performed according to the priority order in the data transmission priority list
  • the data that is sorted in the priority is discarded according to the data transmission priority list.
  • the radio access network element device further includes: a resource processing unit, configured to:
  • the process of restoring the air interface resource and/or the buffer size of the base station side is performed.
  • a radio access network element device includes: a processor and a memory for storing a computer program executable on a processor, where the processor is configured to execute the computer program when the computer program is executed
  • the virtual reality service processing method according to any of the embodiments.
  • a storage medium of the embodiment of the present application wherein the storage medium stores computer executable instructions, and the computer executable instructions are used to execute the virtual reality service processing method according to any one of the foregoing embodiments.
  • the virtual reality service processing method of the embodiment of the present application includes: the radio access network element device receives the service processing request initiated by the UE, and parses the service processing request as a field of view angle FoV switching request; the radio access network element device Determining, according to the FoV handover request, a current target requirement of the UE; the radio access network element device, according to the current target requirement of the UE, configuring, for the UE, first information required for retransmitting the FoV data.
  • the radio access network element device parses the service processing request as the field of view FoV handover request, it determines the current target requirement of the UE according to the FoV handover request, and configures the UE for retransmitting the FoV data.
  • the first information to mitigate the impact of network traffic due to FoV switching through wirelessly assisted VR transmission.
  • FIG. 1 is a schematic diagram of a FoV transmission scheme in the prior art
  • FIG. 4 is a flowchart of implementing an application scenario in the first embodiment of the present application.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • a virtual reality service processing method in the embodiment of the present application is as shown in FIG. 2, where the method includes:
  • Step 101 The radio access network element device receives the service processing request initiated by the UE, and parses out the service processing request as a view angle FoV switching request.
  • Step 102 The radio access network element device determines, according to the FoV handover request, a current target requirement of the UE.
  • Step 103 The radio access network element device configures, for the UE, the first information required for retransmitting the FoV data according to the current target requirement of the UE.
  • the current target requirement of the UE is determined according to the FoV switching request, in an example, Target requirements include the need for network bandwidth and latency.
  • the UE is configured with first information required for retransmitting the FoV data according to the target requirement, where the first information includes: a reserved resource size and/or an adjusted buffer size to alleviate the FoV by wirelessly assisted VR transmission The impact of network traffic brought by switching.
  • the first case is that the angle of view FoV does not change beyond the threshold, and the VR resolution is not excessively affected, and the interactive experience is not affected.
  • the new FoV data does not need to be retransmitted; in the second case, the perspective FoV changes beyond the threshold, affecting the VR resolution, and the interactive experience is affected. In this case, the data needs to be retransmitted.
  • the embodiment of the present application is directed to the second case. For data that needs to retransmit the new FoV, a large pulse-type traffic transmission may occur, and the network may be greatly impacted, as described later.
  • the radio access network element device located on the radio access network (RAN) side may be a base station, such as a base station "gNB" in a 5g scenario.
  • the radio access network element device is not limited to a base station, and may be other network element devices.
  • the RAN configures, for the UE, first information (such as reserved resource size and/or adjusted) required for retransmitting the FoV data. Cache size).
  • the interaction between the RAN side and the UE is two-way.
  • the method further includes: the radio access network element device increases an air interface scheduling priority after receiving the FoV handover request.
  • the method further includes: after receiving the FoV handover request, the radio access network element device notifies the UE of the radio status, and is used by the UE to implement bandwidth estimation on the VR coding rate.
  • the wireless state includes: a wireless network bandwidth estimate and/or a base station side cache size.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the radio access network element device includes: a receiving unit, configured to receive a service processing request initiated by the terminal UE, and parse the service processing request as a field of view angle a request for determining a current target requirement of the UE according to the FoV handover request, where the first processing unit is configured to configure, for the UE according to the current target requirement of the UE, for retransmitting the FoV data.
  • the first information is configured to configure, for the UE according to the current target requirement of the UE, for retransmitting the FoV data.
  • the current target requirement of the UE is determined according to the FoV handover request.
  • the target requirement includes the network bandwidth and The need for delay.
  • the UE is configured with first information required for retransmitting the FoV data according to the target requirement, where the first information includes: a reserved resource size and/or an adjusted buffer size to alleviate the FoV by wirelessly assisted VR transmission The impact of network traffic brought by switching.
  • the foregoing radio access network element device located on the RAN side may be a base station, such as a base station “gNB” in a 5 g scenario.
  • the radio access network element device is not limited to a base station, and may be other network element devices.
  • the RAN configures, for the UE, first information (such as reserved resource size and/or adjusted) required for retransmitting the FoV data. Cache size).
  • the radio access network element device further includes: an adjusting unit, configured to: after receiving the FoV switching request, increase an air interface scheduling priority.
  • the radio access network element device further includes: a notification unit, configured to: notify the UE of the radio status after receiving the FoV handover request, and use the UE to implement the VR coding rate.
  • the wireless status includes: a wireless network bandwidth estimate and/or a base station side cache size.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • a virtual reality service processing method is provided in the embodiment of the present application. As shown in FIG. 3, the method includes:
  • Step 201 The radio access network element device receives the service processing request or the user plane coded data initiated by the server, and parses out the data transmission priority list carried in the service processing request; the data transmission priority list is the perceived UE. Feedback generated by the application rate;
  • Step 202 The radio access network element device performs selective data transmission according to the air interface fluctuation and the data transmission priority list.
  • the radio access network element device receives the service processing request or the user plane coded data initiated by the server, and parses out the data transmission priority list carried in the service processing request according to the foregoing steps 201-202.
  • the data transmission priority determines the priority of the layered coding rate for selective transmission to mitigate the impact of network traffic due to FoV handover through wirelessly assisted VR transmission.
  • the radio access network element device performs selective data transmission according to the air interface fluctuation and the data transmission priority list, and specifically includes: the radio access network element device fluctuates according to an air interface. If the decision is made to comply with the permission, the data transmission is performed according to the priority order in the data transmission priority list; and the radio access network element device determines, according to the air interface fluctuation, that the non-compliant license is performed, according to the data transmission.
  • the priority list discards the data that is sorted by the lower priority in the priority.
  • the foregoing radio access network element device located on the RAN side may be a base station, such as a base station “gNB” in a 5 g scenario.
  • the radio access network element device is not limited to a base station, and may be other network element devices.
  • the RAN side receives the service processing request or the user plane coded data initiated by the server (such as the VR server), and parses out the data transmission priority list carried in the service processing request.
  • the data transmission priority list is feedback formed by sensing the UE applying the code rate (for example, feedback of the hierarchical coding rate priority transmitted by the VR application layer).
  • the RAN performs selective data transmission according to the air interface fluctuation and the data transmission priority list (ie, the RAN adjusts the code rate of the data transmission according to the air interface fluctuation and the data transmission priority list), for example, a scenario with good network conditions All the data are transmitted according to the order in the priority; in the case where the network is not good, the data in the priority is sorted and discarded in the last data.
  • the interaction between the RAN side and the server side is unidirectional, and the RAN perceives the priority of the layered coding rate delivered by the VR application layer to perform selective transmission.
  • the radio access network element device determines, according to the traffic characteristics, that the air interface resource needs to be restored and/or the buffer size of the base station side; and the radio access network element device receives the FoV handover completion request. After that, processing for restoring the air interface resource and/or the buffer size of the base station side is performed.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the radio access network element device includes: a parsing unit configured to receive a service processing request initiated by a server or user plane encoded data, and parse the service processing request a data transmission priority list carried in the data transmission priority list is a feedback formed by sensing a UE application code rate; and a transmission decision unit configured to perform selective data according to the air interface fluctuation and the data transmission priority list transmission.
  • the radio access network element device receives the service processing request or the user plane coded data initiated by the server, and parses out the data transmission priority list carried in the service processing request according to the foregoing steps 201-202.
  • the data transmission priority determines the priority of the layered coding rate for selective transmission to mitigate the impact of network traffic due to FoV handover through wirelessly assisted VR transmission.
  • the transmission decision unit is further configured to: perform data transmission according to priority order in the data transmission priority list, and perform data transmission according to the air interface fluctuation according to the air interface fluctuation; If the decision is made that the license is not met, the data that is sorted by the priority in the priority is discarded according to the data transmission priority list.
  • the foregoing radio access network element device located on the RAN side may be a base station, such as a base station “gNB” in a 5 g scenario.
  • the radio access network element device is not limited to a base station, and may be other network element devices.
  • the RAN side receives the service processing request or the user plane coded data initiated by the server (such as the VR server), and parses out the data transmission priority list carried in the service processing request.
  • the data transmission priority list is feedback formed by sensing the UE applying the code rate (for example, feedback of the hierarchical coding rate priority transmitted by the VR application layer).
  • the RAN performs selective data transmission according to the air interface fluctuation and the data transmission priority list (ie, the RAN adjusts the code rate of the data transmission according to the air interface fluctuation and the data transmission priority list), for example, a scenario with good network conditions All the data are transmitted according to the order in the priority; in the case where the network is not good, the data in the priority is sorted and discarded in the last data.
  • the interaction between the RAN side and the server side is unidirectional, and the RAN perceives the priority of the layered coding rate delivered by the VR application layer to perform selective transmission.
  • the radio access network element device further includes: a resource processing unit, configured to: determine, according to the traffic feature, the air interface resource and/or the cache size of the base station side; and after receiving the FoV handover completion request, The process of restoring the air interface resource and/or the buffer size of the base station side is performed.
  • a resource processing unit configured to: determine, according to the traffic feature, the air interface resource and/or the cache size of the base station side; and after receiving the FoV handover completion request, The process of restoring the air interface resource and/or the buffer size of the base station side is performed.
  • the embodiment of the present application is as follows:
  • the embodiment of the present application is a wireless assisted VR transmission scheme.
  • the demand for network bandwidth and delay of the FoV handover sent by the UE is perceived on the RAN side, and corresponding adjustments are made, such as reserving resources or adjusting the cache size.
  • the radio status is communicated to the UE on the RAN side for estimation of the VR coding rate (such as wireless network bandwidth estimation and/or buffer size).
  • the RAN side senses the priority of the layered coding rate delivered by the VR application layer, and performs selective transmission.
  • the data transmission list information is stored on the server (VR Server) side, and the data transmission list information includes: 1) FoV: basic M1, enhanced M2, enhanced M3; 2) Non-FoV: base N1, enhanced N2, enhanced N3.
  • the method includes:
  • step 401 the FoV is switched.
  • Step 402 FoV switching requires burst large capacity low latency data transmission (xx Mbps, xx ms).
  • Step 403 Increase the air interface scheduling priority, and increase the buffer allocated by the base station side.
  • Step 404 wireless network bandwidth estimation, base station side cache size.
  • Step 405 bandwidth estimation, requesting a suitable code rate.
  • Step 406 FoV switching (application layer), requesting a suitable code rate.
  • Step 407 Transmit the appropriate code rate, and implement according to the data transmission list information.
  • the data transmission list information includes: (FoV: M1, M2, M3), (Non-FOV: N1, N2), and carries a priority list: M1>M2>M3; N1>N2.
  • Step 408 According to the air interface fluctuation, preferentially transmit M1>M2>M3; N1>N2; and possibly discard M3, N2.
  • Step 409 Transmit the appropriate code rate (M1, M2, N1).
  • Step 410 The RAN determines to restore the air interface resource and the base station side cache size according to the traffic characteristics.
  • step 411 the FoV switching is completed.
  • Step 412 Restore the air interface resource and the base station side cache size.
  • the embodiment of the present application is used to implement dynamic adaptable VR transmission through interaction between the wireless network and the VR application layer.
  • the integrated modules described in the embodiments of the present application may also be stored in a computer readable storage medium if they are implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solution of the embodiments of the present application may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .
  • embodiments of the present application are not limited to any particular combination of hardware and software.
  • a radio access network element device includes: a processor and a memory for storing a computer program capable of running on a processor, where the processor is configured to execute the computer program as follows Virtual reality business processing method:
  • Receiving a service processing request initiated by the UE parsing the service processing request as a field of view FoV handover request, determining a current target requirement of the UE according to the FoV handover request, and configuring the UE according to the current target requirement of the UE.
  • the target requirements include the need for network bandwidth and latency.
  • the first information includes: a reserved resource size and/or an adjusted cache size.
  • the processor is further configured to execute when the computer program is executed:
  • the air interface scheduling priority is increased.
  • the processor is further configured to execute when the computer program is executed:
  • the radio status is notified to the UE, and the UE is used to implement bandwidth estimation on the VR coding rate.
  • the wireless state includes: a wireless network bandwidth estimate and/or a base station side cache size.
  • a radio access network element device includes: a processor and a memory for storing a computer program capable of running on a processor, where the processor is configured to execute the computer program as follows Virtual reality business processing method:
  • the data transmission priority list is a feedback formed by sensing a UE applying a code rate;
  • the air interface fluctuations and the data transmission priority list perform selective data transmission.
  • the processor is further configured to execute when the computer program is executed:
  • the air interface fluctuation if the permission is met, the data transmission is performed according to the priority order in the data transmission priority list; if the air interface fluctuation is determined to be inconsistent with the permission, according to the data transmission priority list, Sorting the data transmitted later in the priority is discarded.
  • the processor is further configured to execute when the computer program is executed:
  • the buffer size of the air interface resource and/or the base station side is determined according to the traffic characteristics. After receiving the FoV handover completion request, the process of restoring the air interface resource and/or the buffer size of the base station side is performed.
  • the embodiment of the present application further provides a computer storage medium, where a computer program is stored, and the computer program is used to execute the virtual reality service processing method of the embodiment of the present application.
  • the radio access network element device parses the service processing request as the field of view FoV handover request, it determines the current target requirement of the UE according to the FoV handover request, and configures the UE for retransmitting the FoV data.
  • the first information to mitigate the impact of network traffic due to FoV switching through wirelessly assisted VR transmission.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

La présente invention concerne un procédé de traitement de service de réalité virtuelle, un dispositif d'élément de réseau d'accès sans fil et un support de stockage, le procédé consistant à : un dispositif d'élément de réseau d'accès sans fil reçoit une demande de traitement de service initiée par un équipement d'utilisateur (UE) de terminal et analyse que la demande de traitement de service est une demande de commutation de champ de vision (FoV) ; le dispositif d'élément de réseau d'accès sans fil détermine l'exigence de cible actuelle de l'UE conformément à la demande de commutation de FoV ; et le dispositif d'élément de réseau d'accès sans fil, conformément à l'exigence de cible actuelle de l'UE, configure des premières informations pour l'UE, lesquelles sont nécessaires pour une utilisation dans la retransmission de données de FoV.
PCT/CN2017/117568 2017-02-09 2017-12-20 Procédé de traitement de service de réalité virtuelle, dispositif d'élément de réseau d'accès sans fil et support de stockage Ceased WO2018145522A1 (fr)

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CN201710072240.6A CN108419268B (zh) 2017-02-09 2017-02-09 一种虚拟现实业务处理方法及无线接入网元设备
CN201710072240.6 2017-02-09

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CN106293043A (zh) * 2015-06-29 2017-01-04 北京智谷睿拓技术服务有限公司 可视化内容传输控制方法、发送方法、及其装置

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