WO2016035326A1 - 無線通信システム、基地局、ユーザ機器、通信方法、記憶媒体 - Google Patents
無線通信システム、基地局、ユーザ機器、通信方法、記憶媒体 Download PDFInfo
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- WO2016035326A1 WO2016035326A1 PCT/JP2015/004436 JP2015004436W WO2016035326A1 WO 2016035326 A1 WO2016035326 A1 WO 2016035326A1 JP 2015004436 W JP2015004436 W JP 2015004436W WO 2016035326 A1 WO2016035326 A1 WO 2016035326A1
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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
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
Definitions
- the present disclosure relates to a wireless communication system, a base station, a user equipment, a communication method, and a storage medium.
- LTE Long Term Evolution
- LTE-Advanced Long Term Evolution-Advanced
- MVNO Mobile Virtual Network Operator
- MNO Mobile Network Operator
- Non-Patent Document 2 discloses MOCN (Multi-Operator Core Network) as a form in which a plurality of mobile communication operators (MNO) share a base station.
- MNO mobile communication operators
- Non-Patent Document 1, 3 or 4 discloses control related to a speech encoding rate.
- TS36.300 (3GPP TS 36.300 V12.2.0 (2014-06), Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2) TS25.331 (3GPP TS25.331 V12.2.0 (2014-07), Radio Resource Control (RRC); Protocol specification) TS 23.401 (3GPP TS 23.401 V12.5.0 (2014-06), General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access) TS 26.114 (3GPP TS 26.114 V12.6.0 (2014-06), IP Multimedia Subsystem (IMS); Multimedia telephony; Media handling and interaction)
- IMS IP Multimedia Subsystem
- Non-Patent Documents 1, 3 and 4 do not disclose a specific method for controlling the speech coding rate for a plurality of communication carriers sharing a base station in the case of MOCN. For this reason, in the case of MOCN, it is difficult to provide a flexible voice service.
- one of the objects of the exemplary embodiment is to provide a wireless communication system, a base station, and a wireless communication system that can provide a flexible voice service in a wireless communication system in which the base station is shared by a plurality of communication carriers.
- User equipment, a communication method, and a storage medium are provided. It should be noted that this object is only one of a plurality of objects that the embodiments disclosed herein intend to achieve. Other objects or problems and novel features will become apparent from the description of the present specification or the accompanying drawings.
- the wireless communication system of the exemplary embodiment includes a first user equipment that stores information for identifying a first carrier for a first communication and a first user equipment for a second communication. 2nd user equipment which memorizes information for identifying 2 network operators, and a base station.
- the base station performs the first communication and the second communication, measures radio resources used in the base station, and when the measured radio resources exceed a predetermined threshold, The control level of the base station is compared with at least one of the control level of the first communication and the control level of the second communication.
- the base station is configured to be able to control a speech coding rate related to at least one of the first communication and the second communication based on the comparison result.
- the base station of the exemplary embodiment is included in the wireless communication system.
- the wireless communication system includes a first user device that stores information for identifying the first communication carrier for the first communication, and a second communication carrier for the second communication. And a second user device that stores information for identification.
- the base station includes a communication unit that performs the first communication and the second communication, and a measurement unit that measures a radio resource used in the communication unit. The base station, when the measured radio resource exceeds a predetermined threshold, the control level of the base station, at least one of the control level of the first communication and the control level of the second communication, It has a comparison part to compare.
- the base station includes a control unit configured to be able to control a speech coding rate for at least one of the first communication and the second communication based on the comparison result.
- the user equipment of the exemplary embodiment is configured to perform first communication with a base station. Further, the user device has a memory for storing information for identifying a first communication carrier for the first communication. In addition, when the radio resource used in the base station exceeds a predetermined threshold, the user equipment compares the control level of the base station with the control level of the first communication, It has a communication part which receives control information of a voice coding rate included in the 1st communication changed based on a result. In addition, the user equipment controls a speech coding rate of the first communication based on the received control information.
- the communication method of the exemplary embodiment includes a first user equipment that stores information for identifying a first carrier for a first communication, and a second for a second communication.
- stores the information for identifying the communication carrier of this.
- the base station performs the first communication and the second communication, measures radio resources used in the base station, and the measured radio resources exceed a predetermined threshold , Comparing the control level of the base station with at least one of the control level of the first communication and the control level of the second communication, and based on the result of the comparison, The voice encoding rate for at least one of the two communications is controlled.
- the storage medium of the exemplary embodiment includes a first user equipment that stores information for identifying a first carrier for a first communication, and a second for a second communication.
- the program for making a computer perform the communication method of the base station of a radio
- the program includes a process of executing the first communication and the second communication, a process of measuring radio resources used in the base station, and the measured radio resources exceeding a predetermined threshold And a process of comparing the control level of the base station with at least one of the control level of the first communication and the control level of the second communication, and the first communication based on the result of the comparison And a process for controlling a speech coding rate for at least one of the second communications.
- a wireless communication system capable of providing a flexible voice service in a wireless communication system in which a base station is shared by a plurality of carriers.
- a communication method and a storage medium can be provided.
- FIG. 1 is a diagram illustrating a wireless communication system of a first exemplary embodiment.
- FIG. FIG. 2 shows a base station of a first exemplary embodiment.
- FIG. 6 illustrates the operation of the first exemplary embodiment.
- FIG. 2 illustrates a user equipment of a first exemplary embodiment.
- FIG. 3 illustrates a wireless communication system of a second exemplary embodiment.
- FIG. 6 illustrates a base station of a second exemplary embodiment.
- FIG. 6 illustrates a user equipment of a second exemplary embodiment. It is an example of the information registered with the base station in 2nd exemplary embodiment. It is another example of the information registered with the base station in 2nd exemplary embodiment.
- FIG. 6 illustrates a first operation of the second exemplary embodiment.
- FIG. 6 illustrates a second operation of the second exemplary embodiment.
- FIG. 1 shows a wireless communication system of a first exemplary embodiment.
- the wireless communication system of the present embodiment includes at least one user equipment 1, at least one base station 2, and at least one core network 3.
- a plurality of communications are performed via a plurality of virtual networks 4 between a plurality of user devices 1 and a plurality of core networks 3.
- the user device 1a performs first communication with the core network 3a via the virtual network 4a.
- the user device 1b performs second communication with the core network 3b via the virtual network 4b.
- the user equipment 1z performs the 26th communication with the core network 3z via the virtual network 4z.
- the user device 1a stores information for identifying the first communication carrier for the first communication.
- the first communication carrier is related to the core network 3a.
- the user device 1b stores information for identifying the second communication carrier for the second communication.
- the second communication carrier is related to the core network 3b.
- the user equipment 1z stores information for identifying the 26th communication carrier for the 26th communication.
- the 26th telecommunications carrier is related to the core network 3z.
- the base station 2 executes the first to 26th communications described above in the virtual networks 4a to 4z. Further, the base station 2 measures radio resources used for communication. When the measured radio resource exceeds a predetermined threshold, the base station 2 performs a comparison process.
- the comparison process is a process of comparing the control level of the base station with at least one of the control level of the first communication to the control level of the 26th communication.
- the base station 2 is configured to be able to control the speech coding rate for at least one of the first communication to the 26th communication based on the comparison result.
- the upper limit of communication and a communication provider of this embodiment is not restricted to 26th, 26th or later may be sufficient.
- the user equipment 1, the core network 3, and the virtual network 4 are associated with each other for the sake of simplicity.
- a plurality of user equipments 1 may be associated with a single virtual network 4 or a single core network 3.
- the first and second user equipments 1 can communicate with the first core network via one virtual network 4.
- FIG. 2 is a diagram illustrating the base station of the first exemplary embodiment.
- the base station 2 includes at least a measurement unit 21, a comparison unit 22, a control unit 23, and a communication unit 24.
- the direction of the arrow in a drawing shows an example and does not limit the direction of the signal between blocks.
- the communication unit 24 performs first communication with the first user device 1a that stores information for identifying the first communication carrier. In addition, the communication unit 24 performs second communication communication with the second user device 1b that stores information for identifying the second communication carrier.
- the first communication is performed via the virtual network 4a.
- the second communication is performed via the virtual network 4b.
- the measurement unit 21 measures radio resources used by the communication unit 24.
- the comparison unit 22 compares the control level of the base station with at least one of the control level of the first communication and the control level of the second communication when the measured radio resource exceeds a predetermined threshold value.
- the control unit 23 is configured to be able to control the speech coding rate related to the first communication or the second communication based on the comparison result in the comparison unit 22. It is also possible to prevent the control unit 23 from controlling the audio coding rate by adjusting the control level value of the base station, the control level of the first communication, or the control level of the second communication. it can.
- FIG. 1 For simplicity of explanation, only two user devices 1a and 1b, two core networks 3a and 3b, and two virtual networks 4a and 4b are shown in FIG. This is merely an example, and the base station according to the present embodiment is not limited to this example.
- FIG. 3 illustrates the operation of the first exemplary embodiment.
- the base station 2 performs the first communication with the first user equipment 1a that stores information for identifying the first communication carrier.
- the base station 2 performs communication of the second communication with the second user equipment 1b that stores information for identifying the second communication carrier.
- the first communication is performed via the virtual network 4a.
- the second communication is performed via the virtual network 4b.
- the base station 2 measures radio resources used in the base station.
- the base station 2 controls the control level of the base station, at least one of the control level of the first communication and the control level of the second communication, , Compare.
- the base station 2 controls a speech coding rate related to at least one of the first communication and the second communication based on the comparison result. It is also possible to prevent the base station 2 from controlling the speech coding rate by adjusting the control level value of the base station, the control level of the first communication, or the control level of the second communication. it can.
- FIG. 4 shows the user equipment of the first exemplary embodiment.
- the user device 1 includes a memory 11, a processor 12, and a communication unit 13.
- the direction of the arrow in a drawing shows an example and does not limit the direction of the signal between blocks.
- the memory 11 stores (also referred to as recording or registration) information for identifying the first communication carrier for the first communication.
- the communication unit 13 is configured to perform first communication with the base station 2 via the virtual network 4. Further, the communication unit 13 compares the control level of the base station and the control level of the first communication when the radio resource used in the base station 2 exceeds a predetermined threshold, and the result of the comparison The control information of the audio coding rate included in the first communication changed based on the above is received.
- the processor 12 controls the voice encoding rate of the first communication based on the received control information.
- FIG. 5 shows a wireless communication system of a second exemplary embodiment. More specifically, the entire configuration of an LTE system that realizes MOCN (Multi-Operator Core Network) is shown as an example.
- MOCN Multi-Operator Core Network
- the wireless communication system includes at least one user equipment 100, at least one base station 200, and at least one core network 300.
- a plurality of communications are performed between a plurality of user devices 100 and a plurality of core networks 300 via a plurality of virtual networks 400.
- the user device 100a performs first communication with the core network 300a via the virtual network 400a.
- the user device 100b performs second communication with the core network 300b via the virtual network 400b.
- the user device 100z performs twenty-sixth communication with the core network 300z via the virtual network 400z.
- the user equipment 100 is a user equipment (UE: User Equipment) related to LTE.
- the user device 100a stores information for identifying the first communication carrier for the first communication.
- the first communication carrier is related to the core network 300a.
- the user device 100b stores information for identifying the second communication carrier for the second communication.
- the second communication carrier is related to the core network 300b.
- the user device 100z stores information for identifying the 26th communication carrier for the 26th communication.
- the twenty-sixth communication carrier relates to the core network 300z.
- the base station 200 is a base station (eNB or eNodeB (evolvedeNode B)) related to LTE.
- eNB evolved Node B
- eNodeB evolved Node B
- the core network 300 is a next-generation mobile core network (EPC: “Evolved Packet Packet Core”) that realizes an ALL-IP (Internet Protocol) network.
- the core network 300 includes an MME (Mobility Management Entity) 320 as a control function unit.
- the core network 300 has an S-GW (Serving Gate Way) 310 as a data function unit.
- the core network 300 has a P-GW (PDN (Packet Data Network) Gate Way) 330 as an interface with an external packet network.
- PDN Packet Data Network
- the interface between the eNB that is the base station 200 and the MME 320 or the S-GW 310 of the core network 300 is the S1 interface.
- An interface between an eNB and an adjacent eNB is an X2 interface.
- the communication between the user device 100 and the core network 300 via the virtual network 400 is voice communication.
- An example of this is VoIP (Voice over LTE), which is a method for realizing a voice call based on VoIP (Voice over IP) using an LTE network.
- the core networks 300a to 300z are shown separated from each other.
- the core networks 300 do not necessarily have to be separated from each other.
- the core networks 300 may be virtually separated from each other based on software control.
- a plurality of operators may physically share one core network.
- the base station 200 includes hardware and software for performing radio signal transmission / reception control, and a function for operating a plurality of networks in one physical base station 200 (ie, a virtual network function).
- the base station 200 has a wireless interface function for transmitting and receiving a wireless signal and a wired signal, and a wired interface function. Using these functions, the base station 200 relays data communication between the user equipment 100 and the core network 300.
- the base station 200 operated using the virtual network function can accommodate a UE that subscribes to a preset MNO or MVNO, and can provide a communication service with a core network for the MNO or MVNO designated by the UE.
- a user equipment (UE) that is a subscriber terminal subscribes to a predetermined base station 200.
- This base station 200 broadcasts a PLMN (Public Land Mobile Mobile Network) -ID that is selected by the subscriber terminal.
- PLMN Public Land Mobile Mobile Network
- the UE is connected to the virtual network associated with its PLMN-ID.
- the user apparatus (UE) communicates with the core network 300 through a VLAN (Virtual LAN) having a tag ID assigned in advance to each virtual network.
- VLAN Virtual LAN
- FIG. 6 shows a base station of the second exemplary embodiment.
- the base station of this embodiment has a MOCN function that can accommodate terminals for a plurality of communication carriers. Further, the base station belongs to a wireless communication system that provides a VoLTE service.
- a physical base station 200 radio resource also referred to as a radio resource used in the base station 200
- a virtual network for each communication carrier also referred to as an operator
- a level (indicator) for control corresponding to each is provided.
- FIG. 9 shows control level values registered in the base station in the second exemplary embodiment.
- the control level value (system control level value) as a radio resource of the physical base station 200 is set to “2”.
- VNW Virtual Network
- VNW2 is set to “1”
- VNW3 is set to “5”
- VNWn is set to “2”.
- Comparing the control level value of this system with the control level value (virtual level value) defined for each virtual network accommodates the control of the speech coding rate in one physical base station 200. It can be executed for each communication carrier (for each virtual network 400).
- a system control level value that can be changed during operation (communication) and a setting (definition) for each communication carrier accommodated in the base station 200 are set.
- a virtual level value is set. Comparing the control level value of this system with the control level value defined for each virtual network facilitates ECN (Explicit Congestion Notification) control at the granularity of each operator.
- ECN refers to a predetermined field in an IP datagram transmitted / received by, for example, the user equipment 100 or the base station 200 in the wireless communication system of the present embodiment.
- the ECN field of the IP packet header of the IP datagram related to the voice data changes from “10” indicating ECT (0) of ECT (ECN-Capable Transport) to “11” indicating CE (Congestion Experienced).
- the voice coding rate is adaptively controlled during VoIP communication according to the radio quality (the status of radio resources) and the degree of congestion.
- the base station 200 of the present embodiment includes at least a maintenance management unit 210, a call control processing unit 220, a transmission processing unit 230, and a wireless interface unit 240.
- the direction of the arrow in a drawing shows an example and does not limit the direction of the signal between blocks.
- the maintenance management unit 210 inputs a command for monitoring control from an operator and processes the command.
- the maintenance management unit 210 is configured to be able to perform the following setting process on the transmission processing unit 230.
- (3) Setting of association between VLAN-ID and virtual network The maintenance management unit 210 is configured to be able to set a PLMN-ID that can be connected to the call in the call control processing unit 220.
- the maintenance management unit 210 is configured to be able to acquire information (also referred to as measurement) on the radio resource usage status used in the base station 200 from the radio interface unit 240.
- This information acquisition may be performed at a predetermined cycle or based on a predetermined trigger.
- the maintenance management unit 210 notifies the transmission processing unit 230 of an ECN start control request that is a request to start ECN control or an ECN control stop request that is a request to stop ECN control based on the information acquired by the information acquisition ( (Also referred to as output or transmission).
- the method for determining the start or stop of ECN control according to the information on the radio resource usage status.
- the average value of the radio resource usage used by the base station for radio resource allocation per unit time is defined as two types of threshold values, a predetermined ECN control start value and an ECN control stop value. Compare. Based on this comparison, the start or stop of ECN control may be determined.
- the call control processing unit 220 performs call control. Specifically, the call control processing unit 220 notifies the PLMN-ID set by the maintenance management unit 210 and accommodated by the base station in the cell via the radio interface. Based on the PLMN-ID, the call control processing unit 220 performs call control processing related to a terminal that makes a call connection request via the core network 300 and the transmission processing unit 230.
- the call control processing unit 220 is configured to be able to perform the following. 1) When an eNB-SGW section setting request is received from the core network 300, a tunnel for carrying user data between the core network 300 and the base station 200 (for example, GTP (General Packet Radio Service (GPRS) tunnel)) Set by the call control processing unit 220. 2) An RB (Radio Bearer) -ID that identifies a data path for identifying and carrying user data in association with this tunnel between the UE (user equipment 100) and the eNB (base station 200) is called Acquired by the control processing unit 220. The RB-ID is numbered (generated) by the call control processing unit 220.
- GTP General Packet Radio Service
- the call control processing unit 220 sends a wireless data link setting request to the wireless interface unit 240. 4) The call control processing unit 220 sends a data path setting request to the transmission processing unit 230. 5) The call control processing unit 220 establishes a route for carrying user data of the UE inside the eNB. 6) The eNB-SGW section setting completion notification is transmitted to the core network 300.
- the transmission processing unit 230 transmits and receives control data and user data to and from the core network 300.
- the transmission processing unit 230 performs protocol processing for each layer in compliance with 3GPP use.
- the transmission processing unit 230 exchanges control data or user data with the call control processing unit 220 and the core network 300, respectively.
- the transmission processing unit 230 Upon receiving a data path establishment request from the call control processing unit 220, the transmission processing unit 230 creates a data path.
- the PLMN-ID is included in the data path request.
- the transmission processing unit 230 sets the VLAN ID and RB-ID associated with the received PLMN-ID in association with each other.
- the transmission processing unit 230 maintains the ECN control state.
- the transmission processing unit 230 determines that the ECN control state is valid. Based on this determination, the control level value (system control level value) of the entire base station is compared with the level value for each virtual network, and ECN control is executed.
- the transmission processing unit 230 determines that the ECN control state is invalid and stops the ECN control.
- control level value of the entire base station the range of control level values defined for each virtual network (control level value for each virtual network), and the method for determining whether or not ECN control can be executed are not particularly limited. An example of these is shown below. • Control level value range: 1 to 5 (see Figure 9) ⁇ Judgment conditions: If (control level value for each virtual network) ⁇ (system control level value), it is determined to be permitted. If (control level value for each virtual network) ⁇ (system control level value), it is determined as not permitted.
- the radio interface unit 240 transmits and receives radio signals to and from the UE in accordance with 3GPP specifications.
- the radio interface unit 240 controls radio resources necessary for transmission / reception.
- the radio interface unit 240 converts radio signals (control data or user data) exchanged with the user equipment 100 (UE) into baseband signals, and exchanges the converted signals with the call control processing unit 220 and the transmission processing unit 230. (Or input / output).
- the radio interface unit 240 periodically collects (also referred to as measurement) the use status of radio resources in the base station 200 and sends it to the maintenance management unit 210.
- FIG. 7 shows a user equipment of a second exemplary embodiment.
- the user device 100 includes a memory 110, a wireless connection processing unit 120, a call control processing unit 130, a VoIP processing unit 140, and a wireless interface unit 150.
- the user equipment 100 is configured to be connectable to the base station 200 (also referred to as a subscriber) when the user equipment 100 is in the cell of the base station 200.
- the direction of the arrow in a drawing shows an example and does not limit the direction of the signal between blocks.
- a PLMN-ID for identifying a connection target of the user device 100 is set (also referred to as storage) in advance.
- the wireless connection processing unit 120 executes processing necessary for wireless connection with the base station 200.
- the call control processing unit 130 performs wireless connection processing in cooperation with other functional units.
- the VoIP processing unit 140 processes an audio signal exchanged with the base station 200.
- the wireless interface unit 150 connects the base station 200 and the user equipment 100 so that they can communicate with each other.
- FIG. 10 illustrates a first operation of the second exemplary embodiment.
- FIG. 10 shows an operation example from when the base station 200 receives a call connection request for connecting a call from the user equipment 100 to when data is conducted.
- the PLMN-ID included in the broadcast information broadcasted in the cell of the base station 200 shown in FIG. 8 is set in advance.
- the transmission processing unit 230 is preset with information on a PLMN-ID to be notified included in the notification information shown in FIG. 8, a number for identifying the virtual network 400 (VNW number), and a VLAN ID corresponding to the VNW number.
- VNW number a number for identifying the virtual network 400
- VLAN ID corresponding to the VNW number
- This registration is registered in the call control processing unit 220 and the transmission processing unit 230 of the base station 200 from the operator (communication carrier) through the maintenance management unit 2 10.
- the transmission processing unit 230 is preliminarily processed in advance using the VLAN ID shown in FIG.
- the user equipment 100 that has detected “PLMN 1” (see FIG. 8), which is one of the PLMN-IDs notified by the base station 200, transmits a connection request to the base station 200.
- the call control processing unit 220 of the base station 200 executes call control processing compliant with the 3GPP specifications with the core network 300. Specifically, the call control processing unit 220 receives information including that the PLMN-ID is “PLMN1” from the radio interface unit 240. When the received information of “PLMN1” is sent to the transmission processing unit 230, the call control processing unit 220 identifies the core network 300 that is the call connection destination. According to the example of FIG. 8, the identified core network is “core network 1”.
- the virtual network 400 corresponding to the VNW number “1” is associated with the user device 100, and the VLAN “1” is used as the VLAN ID (that is, the VNW “1” and the VLAN are used). ID “1” is associated).
- the core network 300 transmits an eNB-SGW section setting request.
- the call control processing unit 220 acquires the RB-ID from the received eNB-SGW section setting request.
- a connection completion notification is transmitted to the user device 100 that has made the connection request in S11. Thereby, the user device 100 can be made aware of the completion of connection.
- the call control processing unit 220 sends a wireless data link setting request to the wireless interface unit 240.
- the call control processing unit 220 sends a data path establishment request including the information of the PLMN “1” selected by the user device 100 that has transmitted the connection request to the transmission processing unit 230.
- S14 and S15 are performed simultaneously, but the timings of S14 and S15 may be simultaneous or different.
- the wireless data link establishment response (S17) and the data path establishment response (S16) are responded to the requests of S14 and S15.
- a data path is established between the wireless interface unit 240 and the transmission processing unit 230.
- This data path is a path for carrying user data of the user device 100, and is identified by the received RB-ID.
- the transmission processing unit 230 establishes a tunnel (for example, a GTP tunnel) for carrying user data of the user equipment 100 with the core network 300.
- the transmission processing unit 230 sends an eNB-SGW section setting completion notification to the core network 300.
- a route (also referred to as a path or a route) for carrying user data is established between the core network 300 and the base station 200.
- FIG. 11 illustrates a second operation of the second exemplary embodiment.
- the ECN control is performed according to the usage state of the radio resource while the user device is in the VoLTE communication.
- This example shows the operation of lowering the voice coding rate of VoLTE communication of the user equipment as a result of performing ECN control.
- the maintenance management unit 210 of the base station 200 acquires the radio resource usage status per unit time from the radio interface unit 240. This acquisition may be performed periodically or at an arbitrary timing based on a predetermined trigger.
- the maintenance management unit 210 compares the acquired radio resource usage status (for example, an average value of radio resource usage per unit time) with a predetermined threshold (performs a comparison process).
- the maintenance management unit 210 sends an ECN control request to the transmission processing unit 230.
- the transmission processing unit 230 shifts to the ECN control valid state.
- the transmission processing unit 230 determines which virtual network (VNW) is to be controlled according to the table of FIG. When the ECN control enabled state is entered, the transmission processing unit 230 performs ECN control on the user data of VoLTE accommodated in the virtual network to be controlled.
- VNW virtual network
- VNW1, VNW3, and VNWn are ECN control execution targets. Therefore, for example, ECN control is performed on the VoLTE user data of the user device 100 communicating in the VNW1.
- ECN control is performed on VNW1, VNW3, and VNWn. This is an example, and it is possible to prevent the ECN control from being performed by adjusting the setting of the control level value. For example, by setting the system control level to “0”, it is possible to prevent ECN control from being performed in any VNW.
- the subscribed user equipment uses the VoLTE service, and the ECN field of the IP datagram carrying the voice is “10” indicating ECT (0) of ECT (ECN-Capable Transport). To do.
- the base station 200 rewrites the ECN field of the IP datagram carrying the voice data of the user equipment to “11” indicating CE (CongestioneriExperienced) (S25). .
- a request for the VoLTE audio coding rate used by the corresponding UE in the call is transmitted from the corresponding terminal to the user equipment.
- the user equipment reduces the VoLTE audio coding rate.
- VoLTE communication of the user equipment is performed at the reduced VoLTE speech coding rate.
- a reduction in the VoLTE speech coding rate used by the corresponding user equipment in a call is induced by the control for rewriting the ECN field.
- the ECN field of the downlink voice IP datagram is “10” indicating ECT (0) of ECT (ECN-Capable Transport).
- the base station 200 rewrites the ECN field of the IP datagram carrying the voice data of the user equipment to “11” indicating CE (CongestiondExperienced) (S31). .
- the user equipment reduces the VoLTE speech coding rate.
- VoLTE communication of the user equipment is performed at the reduced VoLTE speech coding rate.
- the transmission processing unit 230 determines that the ECN control state is invalid and stops the ECN control.
- ECN rewrite control is performed during a period from receipt of an ECN control request to receipt of an ECN stop request.
- the above-described radio resource is a predetermined unit resource formed by frequency, time, code, power, and the like, and is used for radio communication.
- a resource block Resource Block
- the scheduler of the base station executes radio resource allocation for the user equipment.
- the measurement unit 21 may measure the allocation status of radio resources of all the user equipments that communicate with each unit time and record the measured value. Further, this recording may be performed in units of user equipment or virtual networks.
- the control level described above may be changed during VoLTE communication (system operation).
- the system control level and the control level of each virtual network can be changed according to the operating state and time zone of the base station. For this reason, flexible VoLTE communication according to the communication environment becomes possible.
- Whether or not to perform the ECN control is determined a plurality of times.
- the wireless communication systems targeted by the above-described embodiments are 3GPP LTE (Long Term Evolution), 3GPP W-CDMA (Wideband Code Division Multiple Access), GSM (registered trademark) (Global System for Mobile communications), WiMAX (Worldwide interoperability). for Microwave Access), but is not limited to these.
- User equipment can also be referred to as user terminal, system, subscriber unit, subscriber station, mobile station, wireless terminal, mobile device, node, device, remote station, remote terminal, terminal, wireless communication device, wireless communication device , May include some or all of the functionality of a wireless communication device or user agent.
- User equipment includes cellular phones, cordless phones, session initiation protocol (SIP) phones, smartphones, wireless local loop (WLL) stations, personal digital assistants (PDAs), laptops, tablets, netbooks, smart books, handheld communication devices, It may be a handheld computing device, satellite radio, wireless modem card and / or another processing device that communicates via a wireless system.
- a base station can be used for communication with one or more wireless terminals and includes some or all of the functionality of an access point, node, evolved Node B (eNB), or some other network entity. obtain.
- the base station communicates with the UE via the air interface. This communication can occur through one or more sectors.
- the base station may act as a router between the UE and the rest of the access network, which may include an Internet Protocol (IP) network, by converting the received air interface frame into an IP packet.
- IP Internet Protocol
- the base station may also coordinate management of attributes for the air interface and may be a gateway between the wired network and the wireless network.
- the above wireless communication system and wireless communication terminal can be realized by hardware, software, or a combination thereof.
- the control method of the communication system described above can also be realized by hardware, software, or a combination thereof.
- “realized by software” means realized by a computer reading and executing a program.
- Non-transitory computer readable media include various types of tangible storage media (tangible storage medium). Examples of non-transitory computer-readable media are magnetic recording media (for example, flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (for example, magneto-optical disks), and CD-ROMs (Compact Disc-Read Only Memory).
- magnetic recording media for example, flexible disks, magnetic tapes, hard disk drives
- magneto-optical recording media for example, magneto-optical disks
- CD-ROMs Compact Disc-Read Only Memory
- CD-R Compact Disc--Recordable
- CD-R / W Compact Disc--Rewritable
- DVD-ROM Digital Versatile Disc-ROM
- DVD-R Digital Versatile Disc--Recordable
- DVD-R / W Digital Versatile Disc-Rewritable
- semiconductor memory for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (Random Access Memory)).
- the program may be supplied to the computer by various types of temporary computer readable media.
- Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves.
- the temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.
- a first user equipment storing information for identifying a first carrier for the first communication
- a second user equipment storing information for identifying a second carrier for the second communication
- a wireless communication system having a base station, The base station Performing the first communication and the second communication; Measure radio resources used in the base station, If the measured radio resource exceeds a predetermined threshold, Comparing the control level of the base station with at least one of the control level of the first communication and the control level of the second communication; Based on the result of the comparison, it is configured to be able to control a speech coding rate for at least one of the first communication and the second communication.
- Wireless communication system A first user device that stores information for identifying the first communication carrier for the first communication, and information for identifying the second communication carrier for the second communication
- a base station of a wireless communication system including a second user equipment for storing A communication unit that executes the first communication and the second communication;
- a comparison unit that compares the control level of the base station with at least one of the control level of the first communication and the control level of the second communication;
- a control unit configured to be able to control a speech coding rate for at least one of the first communication and the second communication based on a result of the comparison;
- the audio coding rate control is as follows: It is performed by rewriting an ECN (Explicit Congestion Notification) field included in the packets of the first communication and the second communication.
- the base station described in Appendix 2. (Appendix 4) In the rewriting, The ECN field is rewritten from ECT (0) of ECT (ECN-Capable Transport) to CE (Congestion Experienced).
- the base station described in Appendix 3. (Appendix 5) If the measured radio resource is lower than a second predetermined threshold; Control of the speech coding rate in the control unit is stopped; The base station according to any one of appendices 2 to 4.
- At least one of the control level of the base station, the control level of the first communication, and the control level of the second communication is variable according to a time zone.
- (Appendix 7) An input unit for inputting a command from the first communication carrier or the second communication carrier; At least one of the control level of the base station, the control level of the first communication, and the control level of the second communication is variable according to a command input to the input unit, The base station according to any one of appendices 2 to 5.
- the first communication is: Identified using a first PLMN (Public Land Mobile Network) identifier;
- the second communication is: Identified using the identifier of the second PLMN, The base station according to any one of appendices 2 to 6.
- PLMN Public Land Mobile Network
- a user equipment configured to perform first communication with a base station, A memory for storing information for identifying the first communication carrier for the first communication; When the radio resource used in the base station exceeds a predetermined threshold, the control level of the base station is compared with the control level of the first communication, A communication unit that receives control information of a speech coding rate included in the first communication, which is changed based on a result of the comparison; A processor for controlling a voice encoding rate of the first communication based on the received control information; User equipment having.
- a first user device for storing information for identifying a first carrier for the first communication;
- a communication method of a base station of a wireless communication system including a second user equipment storing information for identifying a second communication carrier for second communication, Performing the first communication and the second communication; Measure radio resources used in the base station, If the measured radio resource exceeds a predetermined threshold, Comparing the control level of the base station with at least one of the control level of the first communication and the control level of the second communication; Based on the result of the comparison, control of a speech coding rate for at least one of the first communication and the second communication is performed.
- Communication method
- a first user device that stores information for identifying the first communication carrier for the first communication, and information for identifying the second communication carrier for the second communication
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Abstract
Description
ただし、実質的に同一の機能構成を有する複数の構成要素の各々を特に区別する必要がない場合、同一符号のみを付する。例えば、ユーザ機器1a、1bおよび1cを特に区別する必要が無い場合には、単にユーザ機器1と称する。
<第1の例示的な実施形態>
図1は、第1の例示的な実施形態の無線通信システムを示す。
<第2の例示的な実施形態>
図5は、第2の例示的な実施形態の無線通信システムを示す。より具体的には、MOCN(Multi-Operator Core Network)を実現するLTEシステムの全体構成が、一例として、示される。
(1)eNB全体としてのシステム制御レベル値と仮想ネットワーク毎の制御レベル値の設定
(2)PLMN-IDと仮想ネットワークとの関連付けの設定
(3)VLAN-IDと仮想ネットワークとの関連付けの設定
また、保守管理部210は、呼接続可能なPLMN-IDを呼制御処理部220に設定することが可能に構成される。また、保守管理部210は、無線インタフェース部240から、基地局200にて使用される無線リソース使用状況の情報取得(または測定ともいう)を行うことが可能に構成される。この情報取得は、所定の周期で実施されてもよいし、所定のトリガーに基づいて実施されてもよい。保守管理部210は、該情報取得により取得した情報に基づき、ECNの制御を開始する要求であるECN開始制御要求またはECN制御を停止する要求であるECN制御停止要求を伝送処理部230に通知(または出力または送信ともいう)することが可能に構成される。ここで、無線リソース使用状況の情報に応じて、ECN制御の開始または停止を判定する方法については、特に制限はない。例えば、本実施形態では、ある単位時間当たりに基地局が無線リソースの割当に用いる無線リソース使用量の平均値を、予め定められたECN制御開始値とECN制御停止値の2つの種類の閾値と比較する。この比較に基づき、ECN制御の開始または停止が判定されてもよい。
1)eNB-SGW区間設定要求をコアネットワーク300から受信すると、コアネットワーク300と基地局200との間でユーザデータを運ぶトンネル(例えば、GTP(GPRS(General Packet Radio Service) Tunneling Protocol)トンネル)を、呼制御処理部220が設定する。
2)UE(ユーザ機器100)とeNB(基地局200)との間において、このトンネルと対応づけてユーザデータを識別して運ぶためのデータパスを識別するRB(Radio Bearer)-IDを、呼制御処理部220が取得する。なお、RB―IDは、呼制御処理部220にて採番(生成)される。
3)呼制御処理部220が無線データリンク設定要求を無線インタフェース部240に送る。
4)呼制御処理部220がデータパス設定要求を伝送処理部230に送る。
5)呼制御処理部220が、eNB内部において、UEのユーザデータを運ぶ経路を確立する。
6)コアネットワーク300に対して、eNB-SGW区間設定完了通知が送信される。
・制御レベル値の範囲: 1から5(図9参照)
・判定条件:
(仮想ネットワーク毎の制御レベル値)≧(システム制御レベル値)ならば許可と判定される。
(仮想ネットワーク毎の制御レベル値)<(システム制御レベル値)ならば不許可と判定される。
まず、基地局200の呼制御処理部220は、図8に示される、基地局200のセル内に報知する報知情報に含まれるPLMN-IDが予め設定されている。また、伝送処理部230は、図8に示される報知情報に含める報知対象のPLMN-IDと、仮想ネットワーク400を識別する番号(VNW番号)、VNW番号に対応するVLAN IDの情報が予め設定される。また、図9に示される基地局200のシステム制御レベル値及びVNW毎の制御レベル値とが登録(設定)される。この登録は、オペレータ(通信事業者)から保守管理部210を通して、基地局200の呼制御処理部220及び伝送処理部230に登録される。基地局200が起動した際に、伝送処理部230に、図8に示すVLAN IDを用いて、VLANで通信するための事前処理が予め行われる。
(仮想ネットワーク毎の制御レベル値)≧(システム制御レベル値)ならば実行対象とし、
(仮想ネットワーク毎の制御レベル値)<(システム制御レベル値)ならば実行対象外と判定するものとする。
すると、この例では、VNW1、VNW3、VNWnがECN制御の実行対象となる。従って、例えば、VNW1において通信するユーザ機器100のVoLTEのユーザデータに対してECN制御が行われる。
これは一例であり、制御レベル値の設定を調整することで、ECN制御を行わないようにすることが可能である。例えば、システム制御レベルを「0」にすることで、いずれのVNWにおいてもECN制御が行われないようにすることが可能である。
このように、該当するユーザ機器が通話で使用しているVoLTE音声符号化レートの低減が、ECNフィールドを書き換える制御によって誘発される。
この結果、S34及びS35において、低減されたVoLTE音声符号化レートにて、ユーザ機器のVoLTE通信が実施される。なお、S23のECN制御要求を受けた後において、ECN制御停止要求を受け取った際には、伝送処理部230は、ECN制御状態が無効と判断して、ECN制御を停止する。ECN制御要求を受けてからECN停止要求を受けるまでの期間において、ECNの書換制御が行われる。
<他の実施形態>
上述した無線リソースとは、周波数、時間、コード、電力等により形成される所定の単位のリソースであり、無線通信に用いられる。例えば、LTEの場合は、ユーザ機器の通信に割り当てられる周波数と時間により所定の単位に区切られたリソースブロック(Resource Block)を示す。基地局と通信するユーザ機器に対して、基地局のスケジューラがユーザ機器あての無線リソース割当を実行する。例えば、測定部21が、通信するユーザ機器全ての無線リソースの割当状況を単位時間ごとに測定し、測定された値を記録してもよい。また、この記録は、ユーザ機器単位または仮想ネットワーク単位で行われてもよい。
ユーザ機器は、ユーザ端末と呼ぶこともでき、システム、加入者ユニット、加入者局、移動局、ワイヤレス端末、モバイルデバイス、ノード、デバイス、リモート局、リモート端末、端末、ワイヤレス通信デバイス、ワイヤレス通信デバイス、ワイヤレス通信装置またはユーザエージェントの機能性の一部または全部を含み得る。ユーザ機器は、セルラー電話、コードレス電話、セッション開始プロトコル(SIP)電話、スマートフォン、ワイヤレスローカルループ(WLL)局、携帯情報端末(PDA)、ラップトップ、タブレット、ネットブック、スマートブック、ハンドヘルド通信デバイス、ハンドヘルドコンピューティングデバイス、衛星無線、ワイヤレスモデムカードおよび/またはワイヤレスシステムを介して通信する別の処理デバイスでよい。
前述の実施形態の一部または全部は、以下の各付記のように記載することができる。しかしながら、以下の各付記は、あくまでも、本発明の単なる例示に過ぎず、本発明は、かかる場合のみに限るものではない。
(付記1)
第1の通信のために、第1の通信事業者を識別するための情報を記憶する第1のユーザ機器と;
第2の通信のために、第2の通信事業者を識別するための情報を記憶する第2のユーザ機器と;
基地局とを有する無線通信システムであって、
前記基地局は、
前記第1の通信と前記第2の通信とを実行し、
前記基地局にて使用される無線リソースを測定し、
前記測定された無線リソースが所定の閾値を超える場合、
前記基地局の制御レベルと、前記第1の通信の制御レベル及び前記第2の通信の制御レベルの少なくとも一方と、を比較する、
前記比較の結果に基づき、前記第1の通信及び前記第2の通信の少なくとも一方に関する音声符号化レートの制御を行うことが可能に構成される、
無線通信システム。
(付記2)
第1の通信のために、第1の通信事業者を識別するための情報を記憶する第1のユーザ機器と、第2の通信のために、第2の通信事業者を識別するための情報を記憶する第2のユーザ機器とを含む無線通信システムの基地局であって、
前記第1の通信と前記第2の通信とを実行する通信部と;
前記通信部で使用される無線リソースを測定する測定部と;
前記測定された無線リソースが所定の閾値を超える場合、
前記基地局の制御レベルと、前記第1の通信の制御レベル及び前記第2の通信の制御レベルの少なくとも一方と、を比較する比較部と;
前記比較の結果に基づき、前記第1の通信及び前記第2の通信の少なくとも一方に関する音声符号化レートの制御を行うことが可能に構成される制御部と、
を有する基地局。
(付記3)
前記音声符号化レートの制御は、
前記第1の通信及び前記第2の通信のパケットに含まれるECN(Explicit Congestion Notification)フィールドを書き換えることによって、行われる、
付記2記載の基地局。
(付記4)
前記書き換えにおいて、
前記ECNフィールドは、ECT(ECN-Capable Transport)のECT(0)から、CE(Congestion Experienced)に書き換えられる、
付記3記載の基地局。
(付記5)
前記測定された無線リソースが、第2の所定の閾値より低い場合、
前記制御部における前記音声符号化レートの制御が停止される、
付記2乃至4のいずれか一項に記載の基地局。
(付記6)
前記基地局の制御レベル、前記第1の通信の制御レベル及び前記第2の通信の制御レベルの少なくとも一つが、時間帯に応じて可変である、
付記2乃至5のいずれか一項に記載の基地局。
(付記7)
第1の通信事業者または第2の通信事業者からのコマンドを入力する入力部とを更に有し、
前記基地局の制御レベル、前記第1の通信の制御レベル及び前記第2の通信の制御レベルの少なくとも一つが、前記入力部に入力されたコマンドに応じて可変である、
付記2乃至5のいずれか一項に記載の基地局。
(付記8)
前記第1の通信は、
第1のPLMN(Public Land Mobile Network)識別子を用いて識別され、
前記第2の通信は、
第2のPLMNの識別子を用いて識別される、
付記2乃至6のいずれか一項に記載の基地局。
(付記9)
基地局と第1の通信を行うよう構成されたユーザ機器であって、
前記第1の通信のために、第1の通信事業者を識別するための情報を記憶するメモリと、
前記基地局にて使用する無線リソースが所定の閾値を超えた場合に、前記基地局の制御レベルと、前記第1の通信の制御レベルとが比較され、
前記比較の結果に基づき変更された、前記第1の通信に含まれる音声符号化レートの制御情報を受信する通信部と、
前記受信した制御情報に基づき前記第1の通信の音声符号化レートを制御するプロセッサ、
を有するユーザ機器。
(付記10)
第1の通信のために、第1の通信事業者を識別するための情報を記憶する第1のユーザ機器と、
第2の通信のために、第2の通信事業者を識別するための情報を記憶する第2のユーザ機器とを含む無線通信システムの基地局の通信方法であって、
前記第1の通信と前記第2の通信とを実行し、
前記基地局にて使用される無線リソースを測定し、
前記測定された無線リソースが所定の閾値を超える場合、
前記基地局の制御レベルと、前記第1の通信の制御レベル及び前記第2の通信の制御レベルの少なくとも一方と、を比較し、
前記比較の結果に基づき、前記第1の通信及び前記第2の通信の少なくとも一方に関する音声符号化レートの制御を行う、
通信方法。
(付記11)
第1の通信のために、第1の通信事業者を識別するための情報を記憶する第1のユーザ機器と、第2の通信のために、第2の通信事業者を識別するための情報を記憶する第2のユーザ機器とを含む無線通信システムの基地局の通信方法をコンピュータに実行させるためのプログラムであって、
前記第1の通信と前記第2の通信とを実行するプロセスと、
前記基地局にて使用される無線リソースを測定するプロセスと、
前記測定された無線リソースが所定の閾値を超える場合、
前記基地局の制御レベルと、前記第1の通信の制御レベル及び前記第2の通信の制御レベルの少なくとも一方と、を比較するプロセスと、
前記比較の結果に基づき、前記第1の通信及び前記第2の通信の少なくとも一方に関する音声符号化レートの制御を行うプロセスと、
をコンピュータに実行させるためのプログラム。
(付記12)
第1の通信事業者に係る第1のコアネットワークと、
第2の通信事情者に係る第2のコアネットワークと、
前記第1のコアネットワークと通信可能に構成された第1のユーザ機器と、
前記第2のコアネットワークと通信可能に構成された第2のユーザ機器と、
を有する通信システムの基地局であって、
前記第1のコアネットワークと前記第1のユーザ機器の第1の通信と、前記第1のコアネットワークと前記第2のユーザ機器の第2の通信とを行う通信部と、
前記通信部で使用される無線リソースを測定する測定部と、
前記測定された無線リソースが所定の閾値を超える場合、前記基地局の制御レベルと、前記第1の通信の制御レベル又は前記第2の通信の制御レベルとを比較する比較部と、
前記比較の結果に基づき、前記第1の通信及び前記第2の通信の少なくとも一方に関する音声符号化レートの制御を行う制御部と、
を有する基地局。
(付記13)
第1の通信のための契約に係る第1の通信事業者を識別するための情報を記憶する第1のユーザ機器と、
第2の通信のための契約に係る第2の通信事業者を識別するための情報を記憶する第2のユーザ機器とを有する無線通信システムの基地局であって、
前記第1の通信と前記第2の通信を実行する通信部と、
前記通信部で使用される無線リソースを測定する測定部と、
前記測定された無線リソースが所定の閾値を超える場合、
前記基地局の制御レベルと、前記第1の通信の制御レベル及び前記第2の通信の制御レベルの少なくとも一方と、を比較する比較部と、
前記比較の結果に基づき、前記第1の通信及び前記第2の少なくとも一方の通信に関する音声符号化レートの制御を行うことが可能に構成される制御部と、
を有する基地局。
(付記14)
第1の通信のために、第1の通信事業者を識別するための情報を記憶する第1のユーザ機器と、第2の通信のために、第2の通信事業者を識別するための情報を記憶する第2のユーザ機器とを含む無線通信システムの基地局の通信方法をコンピュータに実行させるためのプログラムを記憶する記憶媒体であって、
前記第1の通信と前記第2の通信とを実行するプロセスと、
前記基地局にて使用される無線リソースを測定するプロセスと、
前記測定された無線リソースが所定の閾値を超える場合、
前記基地局の制御レベルと、前記第1の通信の制御レベル及び前記第2の通信の制御レベルの少なくとも一方と、を比較するプロセスと、
前記比較の結果に基づき、前記第1の通信及び前記第2の通信の少なくとも一方に関する音声符号化レートの制御を行うプロセスと、
をコンピュータに実行させるためのプログラムを記憶する記憶媒体。
2 基地局
3 コアネットワーク
4 仮想ネットワーク
11 メモリ
12 プロセッサ
13 通信部
21 測定部
22 比較部
23 制御部
24 通信部
100 ユーザ機器
110 メモリ
120 無線接続処理部
130 呼制御処理部
140 VoIP処理部
150 無線インタフェース部
200 基地局
210 保守管理部
220 呼制御処理部
230 伝送処理部
240 無線インタフェース部
300 コアネットワーク
310 S-GW
320 MME
330 P-GW
400 仮想ネットワーク
Claims (10)
- 第1の通信のために第1の通信事業者を識別するための情報を、記憶する第1のユーザ機器と;
第2の通信のために第2の通信事業者を識別するための情報を、記憶する第2のユーザ機器と;
基地局とを有する無線通信システムであって、
前記基地局は、
前記第1の通信と前記第2の通信とを実行し、
前記基地局にて使用される無線リソースを測定し、
前記無線リソースが所定の閾値を超える場合、
前記第1の通信の制御レベル及び前記第2の通信の制御レベルの少なくとも一方と、前記基地局の制御レベルとを比較する、
前記比較の結果に基づき、前記第1の通信及び前記第2の通信の少なくとも一方に関する音声符号化レートの制御を行うように構成される、
通信システム。 - 第1の通信のために第1の通信事業者を識別するための情報を、記憶する第1のユーザ機器と、
第2の通信のために第2の通信事業者を識別するための情報を、記憶する第2のユーザ機器とを含む無線通信システムの基地局であって、
前記第1の通信と前記第2の通信とを実行する通信部と;
前記通信部で使用される無線リソースを測定する測定部と;
前記無線リソースが所定の閾値を超える場合、
前記第1の通信の制御レベル及び前記第2の通信の制御レベルの少なくとも一方と、前記基地局の制御レベルとを比較する比較部と;
前記比較の結果に基づき、前記第1の通信及び前記第2の通信の少なくとも一方に関する音声符号化レートの制御を行うことが可能に構成される制御部と、
を有する基地局。 - 前記音声符号化レートの制御は、
前記第1の通信及び前記第2の通信のパケットに含まれるECN(Explicit Congestion Notification)フィールドを書き換えることによって、行われる、
請求項2記載の基地局。 - 前記書き換えにおいて、
前記ECNフィールドは、ECT(ECN-Capable Transport)のECT(0)から、CE(Congestion Experienced)に書き換えられる、
請求項3記載の基地局。 - 前記無線リソースが、第2の所定の閾値より低い場合、
前記制御部における前記音声符号化レートの制御が停止される、
請求項2乃至4のいずれか一項に記載の基地局。 - 前記基地局の制御レベル、前記第1の通信の制御レベル及び前記第2の通信の制御レベルの少なくとも一つが、時間帯に応じて可変である、
請求項2乃至5のいずれか一項に記載の基地局。 - 第1の通信事業者または第2の通信事業者からのコマンドを入力する入力部とを更に有し、
前記基地局の制御レベル、前記第1の通信の制御レベル及び前記第2の通信の制御レベルの少なくとも一つが、前記入力部に入力されたコマンドに応じて可変である、
請求項2乃至5のいずれか一項に記載の基地局。 - 基地局と第1の通信を行うよう構成されたユーザ機器であって、
前記第1の通信のために第1の通信事業者を識別するための情報を、記憶するメモリと、
前記基地局にて使用する無線リソースが所定の閾値を超えた場合に、前記基地局の制御レベルと、前記第1の通信の制御レベルとが比較され、
前記比較の結果に基づき変更された、前記第1の通信に含まれる音声符号化レートの制御情報を受信する通信部と、
前記受信した制御情報に基づき前記第1の通信の音声符号化レートを制御するプロセッサ、
を有するユーザ機器。 - 第1の通信のために、第1の通信事業者を識別するための情報を記憶する第1のユーザ機器と、
第2の通信のために、第2の通信事業者を識別するための情報を記憶する第2のユーザ機器とを含む無線通信システムの基地局の通信方法であって、
前記第1の通信と前記第2の通信とを実行し、
前記基地局にて使用される無線リソースを測定し、
前記測定された無線リソースが所定の閾値を超える場合、
前記基地局の制御レベルと、前記第1の通信の制御レベル及び前記第2の通信の制御レベルの少なくとも一方と、を比較し、
前記比較の結果に基づき、前記第1の通信及び前記第2の通信の少なくとも一方に関する音声符号化レートの制御を行う、
通信方法。 - 第1の通信のために、第1の通信事業者を識別するための情報を記憶する第1のユーザ機器と、第2の通信のために、第2の通信事業者を識別するための情報を記憶する第2のユーザ機器とを含む無線通信システムの基地局の通信方法をコンピュータに実行させるためのプログラムを記憶する記憶媒体であって、
前記第1の通信と前記第2の通信とを実行するプロセスと、
前記基地局にて使用される無線リソースを測定するプロセスと、
前記測定された無線リソースが所定の閾値を超える場合、
前記基地局の制御レベルと、前記第1の通信の制御レベル及び前記第2の通信の制御レベルの少なくとも一方と、を比較するプロセスと、
前記比較の結果に基づき、前記第1の通信及び前記第2の通信の少なくとも一方に関する音声符号化レートの制御を行うプロセスと、
をコンピュータに実行させるためのプログラムを記憶する記憶媒体。
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JP2019520771A (ja) * | 2016-07-05 | 2019-07-18 | エルジー エレクトロニクス インコーポレイティド | 次世代移動通信ネットワークでアクセス制御を遂行する方法及びユーザ装置 |
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CN110535627B (zh) * | 2019-08-07 | 2022-09-02 | 中国联合网络通信集团有限公司 | 一种数据查询方法及区块链平台 |
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