WO2021097803A1 - Procédé et appareil de commutation de ressources et support de stockage - Google Patents

Procédé et appareil de commutation de ressources et support de stockage Download PDF

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Publication number
WO2021097803A1
WO2021097803A1 PCT/CN2019/120257 CN2019120257W WO2021097803A1 WO 2021097803 A1 WO2021097803 A1 WO 2021097803A1 CN 2019120257 W CN2019120257 W CN 2019120257W WO 2021097803 A1 WO2021097803 A1 WO 2021097803A1
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WO
WIPO (PCT)
Prior art keywords
terminal
viewing angle
angle rotation
frequency domain
domain resource
Prior art date
Application number
PCT/CN2019/120257
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English (en)
Chinese (zh)
Inventor
杨星
Original Assignee
北京小米移动软件有限公司
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 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2019/120257 priority Critical patent/WO2021097803A1/fr
Priority to CN201980003197.5A priority patent/CN110999377A/zh
Publication of WO2021097803A1 publication Critical patent/WO2021097803A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • 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
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/22—Performing reselection for specific purposes for handling the traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present disclosure relates to the field of wireless communication technology, and in particular to a resource switching method, device and storage medium.
  • a server located on the network side is usually required to transmit data such as VR images to the terminal.
  • the field of view (FOV) transmission technology is commonly used in VR applications, and is a technology for transmission based on the viewing angle picture currently seen by the user.
  • FOV field of view
  • the VR pictures in the direction facing the current viewing angle are encoded with a higher resolution
  • the VR pictures in other directions are encoded with a lower resolution.
  • the VR terminal when the viewing angle of the VR service changes significantly in a short period of time, the VR terminal needs to download the VR image stream corresponding to the new viewing angle from the server, which will cause large bursts of data transmission in a short period of time. This in turn leads to a large data delay and affects the transmission effect of the VR service.
  • the present disclosure provides a resource switching method, device and storage medium.
  • the technical solution is as follows:
  • a resource switching method the method is executed by a base station, and the method includes:
  • the terminal is a terminal that runs a service corresponding to a specified service, and the specified service is a virtual reality VR service or an augmented reality AR service; the viewing angle rotation information is that the terminal is within the measurement time window Report when the viewing angle rotation angle exceeds the viewing angle rotation angle threshold;
  • the frequency domain resource used by the terminal is switched from the first frequency domain resource to the second frequency domain resource.
  • the load of the first frequency domain resource is greater than the load of the second frequency domain resource
  • the number of carriers of the first frequency domain resource is smaller than the number of carriers of the second frequency domain resource.
  • the method before receiving the viewing angle rotation information reported by the terminal, the method further includes:
  • the measurement configuration includes the length of the measurement time window and the viewing angle rotation angle threshold.
  • the measurement configuration further includes at least one of a measurement start instruction and a reporting period forbidden;
  • the measurement start instruction is used to instruct the terminal to start measuring the viewing angle rotation angle within the measurement time window
  • the reporting prohibition period is used to indicate the minimum time interval between two consecutive reports of viewing angle rotation information by the terminal.
  • the delivering the measurement configuration to the terminal includes:
  • the method before sending the measurement configuration to the terminal, the method further includes:
  • the service information includes at least one of a resolution corresponding to the specified service in the terminal and an encoding method of the specified service
  • the delivering the measurement configuration to the terminal includes:
  • the viewing angle rotation information includes the viewing angle rotation angle of the terminal within the measurement time window
  • the switching the frequency domain resource used by the terminal from the first frequency domain resource to the second frequency domain resource includes:
  • the frequency domain resource used by the terminal is switched from the first frequency domain resource to the second frequency domain resource.
  • a resource switching method the method is executed by a terminal, and the method includes:
  • the designated service is a virtual reality VR service or an augmented reality AR service
  • the viewing angle rotation information is reported to the base station, and the viewing angle rotation information is used to instruct the base station to switch the frequency domain resource used by the terminal from the first frequency domain resource to the second frequency domain resource. Frequency domain resources.
  • the load of the first frequency domain resource is greater than the load of the second frequency domain resource
  • the number of carriers of the first frequency domain resource is smaller than the number of carriers of the second frequency domain resource.
  • the method before the obtaining the viewing angle rotation angle of the specified service in the measurement time window, the method further includes:
  • the measurement configuration includes the length of the measurement time window and the viewing angle rotation angle threshold.
  • the measurement configuration further includes at least one of a measurement start instruction and a reporting period forbidden;
  • the measurement start instruction is used to instruct the terminal to start measuring the viewing angle rotation angle within the measurement time window
  • the reporting prohibition period is used to indicate the minimum time interval between two consecutive reports of viewing angle rotation information by the terminal.
  • the method further includes:
  • a first timer When reporting the viewing angle rotation information to the base station, a first timer is started, and the timing duration of the first timer is the reporting prohibition duration.
  • reporting the viewing angle rotation information to the base station includes:
  • the second timer is started when the terminal reports the viewing angle rotation information last time, and the timing duration is the timer for which the reporting duration is prohibited.
  • a resource switching device the device is used in a base station, and the device includes:
  • the information receiving module is used to receive the viewing angle rotation information reported by the terminal;
  • the terminal is a terminal that runs a service corresponding to a specified service, and the specified service is a virtual reality VR service or an augmented reality AR service;
  • the viewing angle rotation information is the The terminal reports when the viewing angle rotation angle within the measurement time window exceeds the viewing angle rotation angle threshold;
  • the resource switching module is configured to switch the frequency domain resource used by the terminal from the first frequency domain resource to the second frequency domain resource.
  • the load of the first frequency domain resource is greater than the load of the second frequency domain resource
  • the number of carriers of the first frequency domain resource is smaller than the number of carriers of the second frequency domain resource.
  • the device further includes:
  • the configuration issuing module is configured to issue a measurement configuration to the terminal before the information receiving module receives the viewing angle rotation information reported by the terminal, and the measurement configuration includes the length of the measurement time window and the viewing angle rotation Angle threshold.
  • the measurement configuration further includes at least one of a measurement start instruction and a reporting period forbidden;
  • the measurement start instruction is used to instruct the terminal to start measuring the viewing angle rotation angle within the measurement time window
  • the reporting prohibition period is used to indicate the minimum time interval between two consecutive reports of viewing angle rotation information by the terminal.
  • the configuration issuing module is configured to issue the measurement configuration to the terminal when it is detected that the terminal starts the designated service.
  • the device further includes:
  • the business information acquisition module is configured to acquire the business information of the designated service before the configuration issuance module delivers the measurement configuration to the terminal, where the business information includes the resolution of the designated service in the terminal Rate, and at least one of the encoding methods of the designated service;
  • the configuration issuing module is configured to issue a measurement configuration to the terminal according to the service information.
  • the viewing angle rotation information includes the viewing angle rotation angle of the terminal within the measurement time window
  • the resource switching module is configured to switch the frequency domain resource used by the terminal from a first frequency domain resource to a second frequency domain resource according to the viewing angle rotation angle.
  • a resource switching device the device is used in a terminal, and the device includes:
  • the angle acquisition module is used to obtain the viewing angle rotation angle within the measurement time window when running the service corresponding to the designated business;
  • the designated business is a virtual reality VR business or an augmented reality AR business;
  • the information reporting module is configured to report viewing angle rotation information to the base station when the viewing angle rotation angle exceeds the viewing angle rotation angle threshold.
  • the viewing angle rotation information is used to instruct the base station to transfer the frequency domain resources used by the terminal from the first frequency to the base station.
  • the domain resource is switched to the second frequency domain resource.
  • the load of the first frequency domain resource is greater than the load of the second frequency domain resource
  • the number of carriers of the first frequency domain resource is smaller than the number of carriers of the second frequency domain resource.
  • the device further includes:
  • the configuration receiving module is configured to receive the measurement configuration issued by the base station before the angle obtaining module obtains the viewing angle rotation angle of the specified service within the measurement time window, and the measurement configuration includes the measurement time window , And the viewing angle rotation angle threshold.
  • the measurement configuration further includes at least one of a measurement start instruction and a reporting period forbidden;
  • the measurement start instruction is used to instruct the terminal to start measuring the viewing angle rotation angle within the measurement time window
  • the reporting prohibition period is used to indicate the minimum time interval between two consecutive reports of viewing angle rotation information by the terminal.
  • the device further includes:
  • the timer starting module is configured to start a first timer when reporting the viewing angle rotation information to the base station, and the timing duration of the first timer is the reporting prohibition duration.
  • the information reporting module is configured to report the viewing angle rotation information to the base station when the viewing angle rotation angle exceeds a viewing angle rotation angle threshold and a second timer is not running;
  • the second timer is started when the terminal reports the viewing angle rotation information last time, and the timing duration is the timer for which the reporting duration is prohibited.
  • a resource switching device the device is used in a base station, and the device includes:
  • a memory for storing executable instructions of the processor
  • the processor is configured to:
  • the terminal is a terminal that runs a service corresponding to a specified service, and the specified service is a virtual reality VR service or an augmented reality AR service; the viewing angle rotation information is that the terminal is within the measurement time window Report when the viewing angle rotation angle exceeds the viewing angle rotation angle threshold;
  • the frequency domain resource used by the terminal is switched from the first frequency domain resource to the second frequency domain resource.
  • a resource switching device the device is used in a terminal, and the device includes:
  • a memory for storing executable instructions of the processor
  • the processor is configured to:
  • the designated service is a virtual reality VR service or an augmented reality AR service
  • the viewing angle rotation information is reported to the base station, and the viewing angle rotation information is used to instruct the base station to switch the frequency domain resource used by the terminal from the first frequency domain resource to the second frequency domain resource. Frequency domain resources.
  • a computer-readable storage medium contains executable instructions, and a processor in a base station invokes the executable instructions to implement the above-mentioned first aspect Or the resource switching method described in any of the optional solutions of the first aspect.
  • a computer-readable storage medium contains executable instructions, and a processor in a terminal invokes the executable instructions to implement the above-mentioned second aspect Or the resource switching method described in any optional solution of the second aspect.
  • the terminal running the service corresponding to the VR/AR service reports the viewing angle rotation information to the base station when the viewing angle rotation angle in the measurement time window exceeds the viewing angle rotation angle threshold.
  • the frequency domain used by the terminal is determined
  • the resource is switched from the first frequency domain resource to the second frequency domain resource.
  • FIG. 1 is a schematic diagram of a VR image based on FOV transmission related to the present disclosure
  • Fig. 2 is a flow chart of VR picture transmission related to the present disclosure
  • Fig. 3 is a schematic diagram showing an implementation environment involved in a resource switching method according to some exemplary embodiments
  • Fig. 4 is a flow chart showing a method for resource switching according to an exemplary embodiment
  • Fig. 5 is a flow chart showing a method for resource switching according to an exemplary embodiment
  • Fig. 6 is a flow chart showing a method for resource switching according to an exemplary embodiment
  • Fig. 7 is a block diagram showing a device for resource switching according to an exemplary embodiment
  • Fig. 8 is a block diagram showing a device for resource switching according to an exemplary embodiment
  • Fig. 9 is a schematic structural diagram showing a base station according to an exemplary embodiment
  • Fig. 10 is a schematic diagram showing a structure of a terminal according to an exemplary embodiment.
  • the full-view transmission technology refers to the transmission of all 360-degree surround VR images to the terminal.
  • the viewer actually only sees the current field of view when watching, and the invisible part also occupies the network bandwidth, which causes a relatively large waste of network resources.
  • FIG. 1 shows a schematic diagram of a VR image based on FOV transmission related to the present disclosure.
  • the plane directly in front of the user's point of view is the FOV plane, and the VR server uses high resolution to encode the pictures in the FOV plane; the remaining four planes are non-FOV planes, and the VR server encodes the pictures in the non-FOV plane.
  • the resolution gradually decreases from the edge that intersects the FOV plane to the vertex in the opposite direction of the viewing angle; through the coding scheme shown in Figure 1, the bandwidth requirement for viewing VR images can be reduced and the effective utilization of bandwidth can be improved.
  • the VR server needs to provide different VR image streams under different viewing angles.
  • the VR image stream of a single angle of view only supports rotation within a small range of angles. If the switched angle of view exceeds a certain range, the VR terminal will You need to re-download the VR screen stream under the new perspective.
  • FIG. 2 shows a flow chart of VR picture transmission related to the present disclosure.
  • the VR picture transmission process is as follows:
  • the VR terminal detects that the viewing angle is rotated.
  • the VR terminal sends wireless data to the base station, and the wireless data contains information about viewing angle rotation.
  • the base station processes the wireless data after receiving the wireless data, and obtains the related information of the viewing angle rotation.
  • the base station sends the VR server a data packet containing information related to the viewing angle rotation.
  • the VR server After the VR server receives the data packet sent by the base station, it processes it, for example, parses the data packet to obtain information related to the viewing angle rotation, and determines or generates a new VR image according to the related information of the viewing angle rotation.
  • the VR server sends a data packet containing the new VR picture to the base station.
  • the base station After the base station receives the data packet sent by the VR server, it processes it to obtain a new VR picture.
  • the base station sends wireless data containing the new VR screen to the VR terminal.
  • the VR terminal After the VR terminal receives the wireless data, it processes it to obtain a new VR screen and display it.
  • step 1) shown in Figure 2 above is sent, from step 2) to the end of step 8
  • the delay between these needs to be controlled within 20ms in order to provide users with better VR Experience.
  • the VR terminal detects that the angle of view rotation is large, and the switched angle of view exceeds the rotation range supported by the VR screen stream of a single angle of view, a large amount of data needs to be transmitted in a short time, which requires the base station to perform step 7) in a short time
  • the VR terminal needs to occupy a large bandwidth.
  • the VR terminal does not have enough available bandwidth at this time, it will cause a large transmission delay and affect the VR service At the same time, due to the need to transmit a large amount of data in a short time, during this time, the VR service may occupy the transmission bandwidth that has been scheduled to other terminals, thereby affecting the wireless transmission effect of other terminals.
  • AR Augmented Reality
  • similar problems also exist in Augmented Reality (AR) services in wireless scenarios. For example, when the AR terminal detects that the angle of view rotation is large, the server may need to send a large amount of new AR data to the AR terminal in a short time, including but not limited to text, pictures, audio and video, and so on.
  • Subsequent embodiments of the present disclosure provide a solution for switching bandwidth resources for the VR/AR terminal in advance in the VR/AR business scenario before the viewing angle changes significantly, so that the VR/AR terminal detects the viewing angle rotation
  • the base station can transmit the VR/AR screen under the new perspective to the VR/AR terminal in time to improve the transmission effect of the VR/AR service.
  • FIG. 3 is a schematic diagram showing an implementation environment involved in a resource switching method according to some exemplary embodiments. As shown in FIG. 3, the implementation environment may include: several terminals 310 and base stations 320.
  • the terminal 310 is a wireless communication device supporting multiple wireless access technologies.
  • the terminal 310 may support a cellular mobile communication technology, for example, may support a fifth-generation mobile communication technology.
  • the terminal 310 may also support a next-generation mobile communication technology of 5G technology.
  • the terminal 310 may also be a user terminal device, such as a mobile phone (or “cellular” phone) and a computer with a mobile terminal.
  • a user terminal device such as a mobile phone (or “cellular” phone) and a computer with a mobile terminal.
  • a mobile terminal device such as a mobile phone (or “cellular” phone) and a computer with a mobile terminal.
  • it may be a portable, pocket-sized, handheld, built-in computer or a mobile device in a vehicle.
  • station Ses, STA
  • subscriber unit subscriber unit
  • subscriber station subscriber station
  • mobile station mobile station
  • remote station remote station
  • access point remote terminal
  • remote terminal access terminal
  • user device user terminal
  • user agent user agent
  • user equipment user device
  • UE user equipment
  • the terminal 310 may be a terminal with VR/AR applications installed and running.
  • the terminal 310 may be VR/AR glasses, or may be a computer device connected to the VR/AR glasses, such as a smart phone. , Tablet computers, e-book readers and other mobile terminals.
  • the base station 320 may be a network side device in a wireless communication system.
  • the wireless communication system may also be a 5G system, also known as a new air interface NR system.
  • the wireless communication system may also be the next-generation system of the 5G system.
  • the base station 320 may be a base station (gNB) adopting a centralized and distributed architecture in the 5G system.
  • the base station 320 adopts a centralized and distributed architecture it usually includes a centralized unit (CU) and at least two distributed units (DU).
  • the centralized unit is provided with a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer, a radio link layer control protocol (Radio Link Control, RLC) layer, and a media access control (Media Access Control, MAC) layer protocol stack; distribution A physical (Physical, PHY) layer protocol stack is provided in the unit, and the embodiment of the present disclosure does not limit the specific implementation manner of the base station 320.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC media access control
  • distribution Physical (Physical, PHY) layer protocol stack is provided in the unit, and the embodiment of the present disclosure does not limit the specific implementation manner of the base station 320.
  • a wireless connection can be established between the base station 320 and the terminal 310 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; or, the wireless air interface can also be a wireless air interface based on 5G-based next-generation mobile communication network technology standards .
  • 5G fifth-generation mobile communication network technology
  • the foregoing wireless communication system may further include a network management device 330.
  • the network management device 330 may be a core network device in a wireless communication system.
  • the network management device 330 may be a mobility management entity (Mobility Management Entity) in an Evolved Packet Core (EPC) network. MME).
  • the network management device may also be other core network devices, such as Serving GateWay (SGW), Public Data Network GateWay (PGW), Policy and Charging Rules function unit (Policy and Charging Rules). Function, PCRF) or Home Subscriber Server (HSS), etc.
  • SGW Serving GateWay
  • PGW Public Data Network GateWay
  • Policy and Charging Rules function unit Policy and Charging Rules
  • Function PCRF
  • HSS Home Subscriber Server
  • Fig. 4 is a flow chart showing a resource switching method according to an exemplary embodiment.
  • the resource switching method may be executed by a base station.
  • the base station may be the base station 320 in the implementation environment shown in Fig. 3.
  • the method may include the following steps.
  • step 401 the viewing angle rotation information reported by the terminal is received;
  • the terminal is a terminal that runs a service corresponding to a specified service, and the specified service is a virtual reality VR service or an augmented reality AR service;
  • the viewing angle rotation information is the measurement time window of the terminal Report when the viewing angle rotation angle within the viewing angle exceeds the viewing angle rotation angle threshold.
  • step 402 the frequency domain resource used by the terminal is switched from the first frequency domain resource to the second frequency domain resource.
  • the load of the first frequency domain resource is greater than the load of the second frequency domain resource
  • the number of carriers of the first frequency domain resource is smaller than the number of carriers of the second frequency domain resource.
  • the method before receiving the viewing angle rotation information reported by the terminal, the method further includes:
  • the measurement configuration is delivered to the terminal, and the measurement configuration includes the length of the measurement time window and the viewing angle rotation angle threshold.
  • the measurement configuration further includes at least one of an indication to start measurement and a reporting period forbidden;
  • the measurement start instruction is used to instruct the terminal to start measuring the viewing angle rotation angle within the measurement time window
  • the reporting prohibition duration is used to indicate the minimum time interval between two consecutive reports of viewing angle rotation information by the terminal.
  • sending measurement configuration to the terminal includes:
  • the measurement configuration is delivered to the terminal.
  • sending measurement configuration to the terminal includes:
  • the business information includes at least one of the resolution of the designated service in the terminal and the encoding mode of the designated service;
  • the measurement configuration is delivered to the terminal according to the service information.
  • the viewing angle rotation information includes the viewing angle rotation angle of the terminal within the measurement time window
  • Switching the frequency domain resource used by the terminal from the first frequency domain resource to the second frequency domain resource includes:
  • the frequency domain resource used by the terminal is switched from the first frequency domain resource to the second frequency domain resource.
  • the terminal running the service corresponding to the VR/AR service reports the viewing angle rotation information to the base station when the viewing angle rotation angle within the measurement time window exceeds the viewing angle rotation angle threshold.
  • the frequency domain resource used by the terminal is switched from the first frequency domain resource to the second frequency domain resource.
  • the viewing angle rotation angle in the measurement time window is larger, which means that the terminal has a high probability of obtaining the VR/AR picture under the new viewing angle from the server, which may cause large data transmission in a short time.
  • the base station It is possible to switch the frequency domain resources used by the terminal in advance before the arrival of large data transmission, so that when large data transmission arrives in a short time, the terminal has a large bandwidth available, thereby reducing the large amount of data in a short time.
  • the delay of AR image transmission improves the transmission effect of VR/AR services.
  • Fig. 5 is a flowchart showing a method for resource switching according to an exemplary embodiment.
  • the method for resource switching may be executed by a terminal.
  • the terminal may be the terminal 310 in the implementation environment shown in Fig. 3.
  • the method may include the following steps.
  • step 501 when the service corresponding to the designated service is running, the viewing angle rotation angle within the measurement time window is obtained; the designated service is a virtual reality VR service or an augmented reality AR service.
  • step 502 when the viewing angle rotation angle exceeds the viewing angle rotation angle threshold, the viewing angle rotation information is reported to the base station.
  • the viewing angle rotation information is used to instruct the base station to switch the frequency domain resource used by the terminal from the first frequency domain resource to the first frequency domain resource. Two frequency domain resources.
  • the load of the first frequency domain resource is greater than the load of the second frequency domain resource
  • the number of carriers of the first frequency domain resource is smaller than the number of carriers of the second frequency domain resource.
  • the method before acquiring the viewing angle rotation angle of the designated service in the measurement time window, the method further includes:
  • the measurement configuration issued by the base station is received, and the measurement configuration includes the length of the measurement time window and the viewing angle rotation angle threshold.
  • the measurement configuration further includes at least one of an indication to start measurement and a reporting period forbidden;
  • the measurement start instruction is used to instruct the terminal to start measuring the viewing angle rotation angle within the measurement time window
  • the reporting prohibition duration is used to indicate the minimum time interval between two consecutive reports of viewing angle rotation information by the terminal.
  • the method further includes:
  • a first timer When reporting the viewing angle rotation information to the base station, a first timer is started, and the timing duration of the first timer is the reporting prohibition duration.
  • reporting the viewing angle rotation information to the base station includes:
  • the second timer is started when the terminal reports the viewing angle rotation information last time, and the timing duration is the timer for the duration of the reporting prohibition.
  • the terminal running the service corresponding to the VR/AR service reports the viewing angle rotation information to the base station when the viewing angle rotation angle within the measurement time window exceeds the viewing angle rotation angle threshold.
  • the frequency domain resource used by the terminal is switched from the first frequency domain resource to the second frequency domain resource.
  • the viewing angle rotation angle in the measurement time window is larger, which means that the terminal has a high probability of obtaining the VR/AR picture under the new viewing angle from the server, which may cause large data transmission in a short time.
  • the base station It is possible to switch the frequency domain resources used by the terminal in advance before the arrival of large data transmission, so that when large data transmission arrives in a short time, the terminal has a large bandwidth available, thereby reducing the large amount of data in a short time.
  • the delay of AR image transmission improves the transmission effect of VR/AR services.
  • Fig. 6 is a flow chart showing a resource switching method according to an exemplary embodiment.
  • the resource switching method may be executed interactively by a terminal and a base station.
  • the terminal may be the terminal 310 in the implementation environment shown in Fig. 3, and the base station It may be the base station 320 of the terminal in the implementation environment shown in FIG. 3.
  • the method may include the following steps.
  • step 601 the base station issues a measurement configuration to the terminal, and the terminal receives the measurement configuration issued by the base station; the measurement configuration includes the length of the measurement time window and the viewing angle rotation angle threshold.
  • the terminal may be a terminal running a service corresponding to a designated service, where the designated service may be a VR service or an AR service.
  • the terminal may be a terminal that runs a VR/AR application, and the VR/AR application needs to perform data interaction with a cloud server.
  • the base station can deliver the measurement configuration to the terminal through a reconfiguration message.
  • the base station may deliver the measurement configuration to the terminal when the terminal starts a designated service, that is, the aforementioned VR/AR service.
  • the terminal when the terminal starts the VR/AR service, it can report the service information of the VR/AR service to the base station. After the base station receives the service information reported by the terminal, it can confirm that the terminal has started the VR/AR service. At this time, the base station can Deliver the measurement configuration to the terminal.
  • the base station may also issue the above-mentioned measurement configuration for the terminal when the terminal accesses.
  • a terminal supporting VR/AR services accesses a base station, it can report the service information of the VR/AR service it supports to the base station. After the base station obtains the service information reported by the terminal, it can issue the above measurement configuration for the terminal. The terminal receives the measurement configuration and stores it locally. When the subsequent terminal starts the VR/AR service, it does not need to report the service information again, and can directly read the locally stored measurement configuration.
  • the configuration information issued by the base station for different terminals may be different, or, for the same terminal, under different VR/AR services, the base station may also issue different configuration information.
  • the base station may obtain the service information of the specified service; when sending the measurement configuration to the terminal, the base station may issue the measurement configuration to the terminal according to the service information.
  • the service information may include at least one of the resolution corresponding to the designated service in the terminal, and the coding mode of the designated service.
  • the service information may also include other information about the specified service, for example, the quality of service (QoS) requirements and delay requirements of the VR/AR service.
  • QoS quality of service
  • the base station can issue measurements for the terminal according to the service information of the VR/AR service started this time by the terminal Configuration.
  • the parameters in the measurement configuration are related to the content carried in the service information. For example, when the resolution carried in the service information is low, the base station can configure a longer measurement time window or a higher viewing angle rotation angle threshold.
  • the base station can, according to the service information of the various VR/AR services supported by the terminal, be the various VR/AR services supported by the terminal.
  • the AR service delivers the corresponding measurement configuration.
  • the terminal starts a certain VR/AR service, it can obtain the pre-configured measurement configuration corresponding to the current VR/AR service from the local.
  • the measurement configuration further includes at least one of an indication to start measurement and a reporting period forbidden;
  • the measurement start instruction is used to instruct the terminal to start measuring the viewing angle rotation angle within the measurement time window
  • the reporting prohibition duration is used to indicate the minimum time interval between two consecutive reports of viewing angle rotation information by the terminal.
  • the measurement configuration when the above-mentioned measurement configuration is a measurement configuration issued by the base station according to the service information reported by the terminal when the VR/AR service is started, the measurement configuration may include the above-mentioned measurement start instruction. After the terminal receives the measurement start instruction, that is, The subsequent step 602 can be performed.
  • the terminal when the above-mentioned measurement configuration is a measurement configuration issued by the base station according to the service information reported by the terminal during access, the terminal can directly obtain the corresponding locally when it subsequently starts the VR/AR service. Measure the configuration and start step 602.
  • the foregoing measurement configuration also includes a reporting prohibition period for controlling the reporting interval of the terminal.
  • step 602 when the terminal runs the service corresponding to the specified service, the viewing angle rotation angle within the measurement time window is acquired.
  • the viewing angle rotation angle of the terminal within the measurement time window can be obtained.
  • the terminal may periodically obtain the viewing angle rotation angle within the measurement time window at a certain time interval, and the start and end times of the measurement time window corresponding to the viewing angle rotation angle acquired each time are different.
  • the terminal obtains the viewing angle rotation angle within the measurement time window every 1 ms, and the start time of the measurement time window when obtaining the viewing angle rotation angle twice is separated by 1 ms.
  • the measurement time window acquired for the first time is the duration from the 7th ms to the 11th ms.
  • the measurement time window is 5ms; after that, the terminal obtains the viewing angle rotation angle in the measurement time window for the first time at the 12th ms.
  • the measurement time window obtained for the first time is 5ms from the 8th to the 12th ms.
  • the measurement time window and so on.
  • step 603 when the viewing angle rotation angle exceeds the viewing angle rotation angle threshold, the terminal reports the viewing angle rotation information to the base station; correspondingly, the base station receives the viewing angle rotation information reported by the terminal.
  • the terminal Each time the terminal obtains a viewing angle rotation angle within a measurement time window, it compares the viewing angle rotation angle with the viewing angle rotation angle threshold in the measurement configuration. If the viewing angle rotation angle exceeds the viewing angle rotation angle threshold, the terminal reports the viewing angle to the base station Turn information.
  • the terminal may report the above-mentioned viewing angle rotation information through a measurement report message.
  • the viewing angle rotation information includes the viewing angle rotation angle of the terminal within the measurement time window.
  • the first timer when the terminal reports the viewing angle rotation information to the base station, the first timer may be started at the same time, and the timing duration of the first timer is the reporting prohibition time length.
  • the terminal again measures that the viewing angle rotation angle in the new measurement time window exceeds the viewing angle rotation angle threshold, the terminal will no longer report the viewing angle rotation information until the end of the first timer. Thereby, repeated reporting of viewing angle rotation information is reduced, and the waste of signaling resources is avoided.
  • the viewing angle rotation information is reported to the base station; wherein, the second timer is the last time the terminal reported viewing angle rotation Started when the message is sent, and the timing duration is the timer for which the reporting duration is prohibited.
  • the terminal when the terminal measures that the viewing angle rotation angle in the measurement time window exceeds the viewing angle rotation angle threshold at a certain time, it can first check whether there is a second timer that was started when the viewing angle rotation information was reported previously. If there is a running second timer It means that the interval between the current time and the time when the viewing angle rotation information was reported last time has not reached the reporting prohibition period. At this time, the terminal will not report the viewing angle rotation information this time. On the contrary, if there is no second timer running locally This means that the terminal has not reported viewing angle rotation information before, or the interval between the current time and the time when the viewing angle rotation information was reported last time has exceeded the reporting prohibition period. At this time, the terminal can report the viewing angle rotation information.
  • step 604 the base station switches the frequency domain resource used by the terminal from the first frequency domain resource to the second frequency domain resource.
  • the load of the first frequency domain resource is greater than the load of the second frequency domain resource
  • the number of carriers of the first frequency domain resource is less than the number of carriers of the second frequency domain resource.
  • the base station after the base station receives the viewing angle rotation information reported by the terminal, it can confirm that a large data volume burst transmission will occur. At this time, the base station can switch the terminal to a lighter load based on the load conditions of each frequency band. Frequency band; Or, the base station can also increase the number of carriers that can be used by the terminal; Or, the base station can also switch the terminal to a complex and lighter frequency band while increasing the number of carriers that can be used by the terminal.
  • the base station may also switch the frequency domain resource used by the terminal from the first frequency domain resource to the second frequency domain resource according to the viewing angle rotation angle. Frequency domain resources.
  • the base station can switch the terminal to a lighter-loaded frequency band, and/or add a small number of carriers for the terminal; and when the viewing angle rotation angle is large, the base station can switch the terminal to a more loaded frequency band. Lighter frequency bands, and/or, increase the number of carriers for the terminal.
  • the terminal running the service corresponding to the VR/AR service reports the viewing angle rotation information to the base station when the viewing angle rotation angle within the measurement time window exceeds the viewing angle rotation angle threshold.
  • the frequency domain resource used by the terminal is switched from the first frequency domain resource to the second frequency domain resource.
  • the viewing angle rotation angle in the measurement time window is larger, which means that the terminal has a high probability of obtaining the VR/AR picture under the new viewing angle from the server, which may cause large data transmission in a short time.
  • the base station It is possible to switch the frequency domain resources used by the terminal in advance before the arrival of large data transmission, so that when large data transmission arrives in a short time, the terminal has a large bandwidth available, thereby reducing the large amount of data in a short time.
  • the delay of AR image transmission improves the transmission effect of VR/AR services.
  • FIG. 7 is a block diagram of a resource switching device according to an exemplary embodiment.
  • the resource switching device may be implemented as a base station 320 in the implementation environment shown in FIG. 3 through hardware or a combination of software and hardware. All or part of, to perform the steps performed by the base station in the embodiment shown in FIG. 4 or FIG. 6.
  • the resource switching device may include:
  • the information receiving module 701 is configured to receive viewing angle rotation information reported by the terminal;
  • the terminal is a terminal that runs a service corresponding to a specified service, and the specified service is a virtual reality VR service or an augmented reality AR service;
  • the viewing angle rotation information is Reporting when the viewing angle rotation angle of the terminal in the measurement time window exceeds the viewing angle rotation angle threshold;
  • the resource switching module 702 is configured to switch the frequency domain resource used by the terminal from the first frequency domain resource to the second frequency domain resource.
  • the load of the first frequency domain resource is greater than the load of the second frequency domain resource
  • the number of carriers of the first frequency domain resource is smaller than the number of carriers of the second frequency domain resource.
  • the device further includes:
  • the configuration issuing module is configured to issue a measurement configuration to the terminal before the information receiving module 701 receives the viewing angle rotation information reported by the terminal.
  • the measurement configuration includes the length of the measurement time window and the viewing angle Rotation angle threshold.
  • the measurement configuration further includes at least one of a measurement start instruction and a reporting period forbidden;
  • the measurement start instruction is used to instruct the terminal to start measuring the viewing angle rotation angle within the measurement time window
  • the reporting prohibition period is used to indicate the minimum time interval between two consecutive reports of viewing angle rotation information by the terminal.
  • the configuration issuing module is configured to issue the measurement configuration to the terminal when it is detected that the terminal starts the designated service.
  • the device further includes:
  • the business information acquisition module is configured to acquire the business information of the designated service before the configuration issuance module delivers the measurement configuration to the terminal, where the business information includes the resolution of the designated service in the terminal Rate, and at least one of the encoding methods of the designated service;
  • the configuration issuing module is configured to issue a measurement configuration to the terminal according to the service information.
  • the viewing angle rotation information includes the viewing angle rotation angle of the terminal within the measurement time window
  • the resource switching module 702 is configured to switch the frequency domain resource used by the terminal from the first frequency domain resource to the second frequency domain resource according to the viewing angle rotation angle.
  • the terminal running the service corresponding to the VR/AR service reports the viewing angle rotation information to the base station when the viewing angle rotation angle within the measurement time window exceeds the viewing angle rotation angle threshold.
  • the frequency domain resource used by the terminal is switched from the first frequency domain resource to the second frequency domain resource.
  • the viewing angle rotation angle in the measurement time window is larger, which means that the terminal has a high probability of obtaining the VR/AR picture under the new viewing angle from the server, which may cause large data transmission in a short time.
  • the base station It is possible to switch the frequency domain resources used by the terminal in advance before the arrival of large data transmission, so that when large data transmission arrives in a short time, the terminal has a large bandwidth available, thereby reducing the large amount of data in a short time.
  • the delay of AR image transmission improves the transmission effect of VR/AR services.
  • Fig. 8 is a block diagram showing a device for resource switching according to an exemplary embodiment.
  • the device for resource switching can be implemented as the terminal 310 in the implementation environment shown in Fig. 3 through hardware or a combination of software and hardware. All or part of, to execute the steps executed by the terminal in the embodiment shown in FIG. 5 or FIG. 6.
  • the resource switching device may include:
  • the angle obtaining module 801 is configured to obtain the angle of view rotation within the measurement time window when running a service corresponding to a specified service; the specified service is a virtual reality VR service or an augmented reality AR service;
  • the information reporting module 802 is configured to report viewing angle rotation information to the base station when the viewing angle rotation angle exceeds the viewing angle rotation angle threshold.
  • the viewing angle rotation information is used to instruct the base station to assign the frequency domain resources used by the terminal to the first
  • the frequency domain resource is switched to the second frequency domain resource.
  • the load of the first frequency domain resource is greater than the load of the second frequency domain resource
  • the number of carriers of the first frequency domain resource is smaller than the number of carriers of the second frequency domain resource.
  • the device further includes:
  • the configuration receiving module is configured to receive the measurement configuration issued by the base station before the angle obtaining module 801 obtains the viewing angle rotation angle of the specified service within the measurement time window, and the measurement configuration includes the measurement time The duration of the window, and the viewing angle rotation angle threshold.
  • the measurement configuration further includes at least one of a measurement start instruction and a reporting period forbidden;
  • the measurement start instruction is used to instruct the terminal to start measuring the viewing angle rotation angle within the measurement time window
  • the reporting prohibition period is used to indicate the minimum time interval between two consecutive reports of viewing angle rotation information by the terminal.
  • the device further includes:
  • the timer starting module is configured to start a first timer when reporting the viewing angle rotation information to the base station, and the timing duration of the first timer is the reporting prohibition duration.
  • the information reporting module 802 is configured to report the viewing angle rotation information to the base station when the viewing angle rotation angle exceeds the viewing angle rotation angle threshold and a second timer is not running;
  • the second timer is started when the terminal reports the viewing angle rotation information last time, and the timing duration is the timer for which the reporting duration is prohibited.
  • the terminal running the service corresponding to the VR/AR service reports the viewing angle rotation information to the base station when the viewing angle rotation angle within the measurement time window exceeds the viewing angle rotation angle threshold.
  • the frequency domain resource used by the terminal is switched from the first frequency domain resource to the second frequency domain resource.
  • the viewing angle rotation angle in the measurement time window is larger, which means that the terminal has a high probability of obtaining the VR/AR picture under the new viewing angle from the server, which may cause large data transmission in a short time.
  • the base station It is possible to switch the frequency domain resources used by the terminal in advance before the arrival of large data transmission, so that when large data transmission arrives in a short time, the terminal has a large bandwidth available, thereby reducing the large amount of data in a short time.
  • the delay of AR image transmission improves the transmission effect of VR/AR services.
  • the device provided in the above embodiment realizes its functions, only the division of the above-mentioned functional modules is used as an example for illustration. In actual applications, the above-mentioned functions can be allocated by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • An exemplary embodiment of the present disclosure provides a resource switching device that can implement all or part of the steps performed by a base station in the embodiment shown in FIG. 4 or FIG. 6 of the present disclosure.
  • the resource switching device includes: a processor, A memory storing processor executable instructions;
  • the processor is configured as:
  • the terminal is a terminal that runs a service corresponding to a specified service, and the specified service is a virtual reality VR service or an augmented reality AR service; the viewing angle rotation information is that the terminal is within the measurement time window Report when the viewing angle rotation angle exceeds the viewing angle rotation angle threshold;
  • the frequency domain resource used by the terminal is switched from the first frequency domain resource to the second frequency domain resource.
  • the load of the first frequency domain resource is greater than the load of the second frequency domain resource
  • the number of carriers of the first frequency domain resource is smaller than the number of carriers of the second frequency domain resource.
  • the processor is also configured to:
  • a measurement configuration is delivered to the terminal, and the measurement configuration includes the length of the measurement time window and the viewing angle rotation angle threshold.
  • the measurement configuration further includes at least one of a measurement start instruction and a reporting period forbidden;
  • the measurement start instruction is used to instruct the terminal to start measuring the viewing angle rotation angle within the measurement time window
  • the reporting prohibition period is used to indicate the minimum time interval between two consecutive reports of viewing angle rotation information by the terminal.
  • the processor is also configured to:
  • the processor is also configured to:
  • the service information includes at least one of the resolution corresponding to the designated service in the terminal and the coding mode of the designated service Species
  • the processor is also configured to:
  • the measurement configuration is delivered to the terminal
  • the measurement configuration is delivered to the terminal according to the service information.
  • the viewing angle rotation information includes the viewing angle rotation angle of the terminal within the measurement time window
  • the processor is also configured to:
  • the frequency domain resource used by the terminal When the frequency domain resource used by the terminal is switched from the first frequency domain resource to the second frequency domain resource, according to the viewing angle rotation angle, the frequency domain resource used by the terminal is switched from the first frequency domain resource to the second frequency domain resource.
  • Two frequency domain resources Two frequency domain resources.
  • An exemplary embodiment of the present disclosure provides a resource switching device that can implement all or part of the steps executed by a terminal in the embodiment shown in FIG. 5 or FIG. 6 of the present disclosure.
  • the resource switching device includes: a processor, A memory storing processor executable instructions;
  • the processor is configured as:
  • the designated service is a virtual reality VR service or an augmented reality AR service
  • the viewing angle rotation information is reported to the base station, and the viewing angle rotation information is used to instruct the base station to switch the frequency domain resource used by the terminal from the first frequency domain resource to the second frequency domain resource. Frequency domain resources.
  • the load of the first frequency domain resource is greater than the load of the second frequency domain resource
  • the number of carriers of the first frequency domain resource is smaller than the number of carriers of the second frequency domain resource.
  • the processor is also configured as:
  • the base station Before acquiring the viewing angle rotation angle of the designated service in the measurement time window, receiving a measurement configuration issued by the base station, the measurement configuration including the length of the measurement time window and the viewing angle rotation angle threshold.
  • the measurement configuration further includes at least one of a measurement start instruction and a reporting period forbidden;
  • the measurement start instruction is used to instruct the terminal to start measuring the viewing angle rotation angle within the measurement time window
  • the reporting prohibition period is used to indicate the minimum time interval between two consecutive reports of viewing angle rotation information by the terminal.
  • the processor is also configured to:
  • a first timer When reporting the viewing angle rotation information to the base station, a first timer is started, and the timing duration of the first timer is the reporting prohibition duration.
  • the processor is also configured to:
  • the second timer is started when the terminal reports the viewing angle rotation information last time, and the timing duration is the timer for which the reporting duration is prohibited.
  • the user equipment includes hardware structures and/or software modules corresponding to each function.
  • the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Those skilled in the art can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 9 is a schematic structural diagram showing a base station according to an exemplary embodiment.
  • the base station can be implemented as a base station in the system environment shown in FIG. 3 above.
  • the base station 900 includes a communication unit 904 and a processor 902.
  • the processor 902 may also be a controller, which is represented as "controller/processor 902" in FIG. 9.
  • the communication unit 904 is used to support the base station to communicate with other network entities (for example, other terminals or base stations, etc.).
  • the base station 900 may further include a memory 903, and the memory 903 is used to store program codes and data of the base station 900.
  • FIG. 9 only shows a simplified design of the base station 900.
  • the base station 900 may include any number of processors, controllers, memories, communication units, etc., and all base stations that can implement the embodiments of the present disclosure are within the protection scope of the embodiments of the present disclosure.
  • Fig. 10 is a schematic diagram showing a structure of a terminal according to an exemplary embodiment.
  • the terminal can be implemented as the terminal in the system environment shown in Figure 3 above.
  • the terminal 1000 includes a communication unit 1004 and a processor 1002.
  • the processor 1002 may also be a controller, which is represented as "controller/processor 1002" in FIG. 10.
  • the communication unit 1004 is used to support the terminal to communicate with other network entities (for example, other terminals or base stations).
  • the terminal 1000 may further include a memory 1003, and the memory 1003 is configured to store program codes and data of the terminal 1000.
  • FIG. 10 only shows a simplified design of the terminal 1000.
  • the terminal 1000 may include any number of processors, controllers, memories, communication units, etc., and all terminals that can implement the embodiments of the present disclosure are within the protection scope of the embodiments of the present disclosure.
  • the functions described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, or any combination thereof.
  • these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on the computer-readable medium.
  • the computer-readable medium includes a computer storage medium and a communication medium, where the communication medium includes any medium that facilitates the transfer of a computer program from one place to another.
  • the storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.
  • the embodiment of the present disclosure also provides a computer storage medium for storing computer software instructions used by the above-mentioned terminal or base station, which contains a program designed for executing the above-mentioned resource switching method.

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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 appareil, appartenant au domaine technique des communications sans fil. Le procédé consiste : à recevoir des informations de rotation d'angle de visualisation rapportées par un terminal, le terminal exécutant un service correspondant à un service de réalité virtuelle (RV) ou à un service de réalité augmentée (AR) et les informations de rotation d'angle de visualisation étant rapportées lorsqu'un angle de rotation d'angle de visualisation du terminal à l'intérieur d'une fenêtre temporelle de mesures dépasse un seuil d'angle de rotation d'angle de visualisation ; et à commuter une ressource de domaine fréquentiel utilisée par le terminal d'une première ressource de domaine fréquentiel à une seconde ressource de domaine fréquentiel. Selon le procédé ci-dessus, une station de base peut commuter la ressource de domaine fréquentiel utilisée par le terminal avant l'arrivée de transmission d'une grande quantité de données, de sorte qu'une grande largeur de bande soit disponible pour le terminal lorsqu'une grande quantité de données lui est transmise en peu de temps, ce qui permet de réduire le retard de transmission d'images de RV/AR utilisant une grande quantité de données en peu de temps et d'améliorer l'effet de transmission du service de RV/AR.
PCT/CN2019/120257 2019-11-22 2019-11-22 Procédé et appareil de commutation de ressources et support de stockage WO2021097803A1 (fr)

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