KR101751472B1 - RADIO ACCESS NETWORK SHARING METHOD AND eNodeB APPARATUS THEREFOR - Google Patents

RADIO ACCESS NETWORK SHARING METHOD AND eNodeB APPARATUS THEREFOR Download PDF

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KR101751472B1
KR101751472B1 KR1020150183077A KR20150183077A KR101751472B1 KR 101751472 B1 KR101751472 B1 KR 101751472B1 KR 1020150183077 A KR1020150183077 A KR 1020150183077A KR 20150183077 A KR20150183077 A KR 20150183077A KR 101751472 B1 KR101751472 B1 KR 101751472B1
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South Korea
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enb
mno
terminal
handover
data channel
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KR1020150183077A
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Korean (ko)
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이경재
쿠마디 쿠죠
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한밭대학교 산학협력단
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/38—Reselection control by fixed network equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

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

Abstract

Determining a data channel state with a first eNode B (eNodeB) of a first MNO (mobile network operator) with a terminal that is a subscriber of the first MNO; The first eNB requesting handover to a second eNB of the second MNO based on the determined data channel status; Controlling a terminal according to a handover response of the second eNB and handing the terminal to the second eNB; And transmitting a mobile communication packet to a second eNB through a communication link established between the first eNB and the second eNB so that a mobile communication packet received through the Evolved Packet Core (EPC) of the first MNO can be transmitted to the mobile station A radio access network (RAN) sharing method according to an embodiment of the present invention is disclosed.

Figure R1020150183077

Description

TECHNICAL FIELD [0001] The present invention relates to a radio access network (RAN) sharing method and an eNB

The present invention relates to a RAN sharing method and an eNB apparatus therefor. More specifically, the present invention relates to a relay-based RAN sharing method (ReRANS) between different network operators and an eNB device for the same.

Over the years, there has been an increase in demand for voice and data in the mobile communications network, which has made RAN (Radio Access Network) resources more scarce than ever before. Mobile network operators are a way to increase revenue while reducing capital expenditures, increasing overall spectrum and energy efficiency, and improving the satisfaction of mobile network subscribers. I am interested in building infrastructure for this.

Passive infrastructure sharing is widely used, but active resource sharing among inter-MNOs has several challenges. Challenges include, for example, operational independence, flexibility, data integrity, interference, and complexity.

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Korean Patent Publication No. 10-2007-0073365

The RAN sharing method according to an embodiment of the present invention and the eNB apparatus therefor are aimed at improving service quality of a mobile communication network.

In addition, the RAN sharing method and the eNB device according to an embodiment of the present invention aim to improve the profitability of the network operator.

In addition, the RAN sharing method and the eNB device according to an embodiment of the present invention aim to improve service satisfaction of a network subscriber.

A RAN sharing method according to an embodiment of the present invention includes:

Determining a data channel state with a first eNode B (eNodeB) of a first MNO (mobile network operator) with a terminal that is a subscriber of the first MNO; The first eNB requesting handover to a second eNB of a second MNO based on the determined data channel state; Controlling the terminal according to a handover response of the second eNB to handover the terminal to a second eNB; The second eNB and the second eNB through a communication link established between the first eNB and the second eNB so that a mobile communication packet received through an Evolved Packet Core (EPC) of the first MNO can be transmitted to the terminal, eNB < / RTI >

The step of requesting the handover may include a step of requesting handover to the second eNB when a Quality of Service (QoS) of a data channel with the UE is less than a predetermined value.

Wherein the RAN sharing method comprises the steps of: if the terminal moves and is handed over from the second eNB to a third eNB of the second MNO, and if a communication link is not established between the first eNB and the third eNB, And transmitting the communication packet to the second eNB through the established communication link and being transmitted to the terminal via the third eNB.

Wherein the RAN sharing method is characterized in that the terminal is moved and handed over from the second eNB to the fourth eNB of the second MNO and the fifth MNO of the fifth MNO is handed over from the first eNB to the fourth eNB, and requesting handover to the fifth eNB by requesting the EPC of the first MNO when the distance between the eNB and the fourth eNB is closer.

The RAN sharing method includes: receiving a network connection request from a second terminal; And when the second terminal is a subscriber of the second MNO, transmitting a network connection request to an eNB belonging to the second MNO and receiving a connection permission response from an eNB belonging to the second MNO, And forming a channel.

The RAN sharing method includes the steps of: after forming a data channel with the second terminal, transmitting a mobile communication packet between an eNB belonging to the second MNO and the second terminal via a communication link established with an eNB belonging to the second MNO And may further include a step of relaying.

An eNB apparatus according to another embodiment of the present invention includes:

1. An eNB apparatus belonging to a first MNO, the apparatus comprising: a first communication unit for determining a state of a data channel with a terminal that is a subscriber of the first MNO; Requesting handover to a second eNB of the second MNO based on the determined data channel state and controlling the terminal according to a handover response of the second eNB to handover the terminal to the second eNB ; The second eNB and the second eNB through a communication link established between the first eNB and the second eNB so that a mobile communication packet received through an Evolved Packet Core (EPC) of the first MNO can be transmitted to the terminal, and a second communication unit for transmitting to the eNB.

The control unit may request handover to the second eNB when the Quality of Service (QoS) of the data channel with the UE is less than a predetermined value.

The second communication unit is handed over from the second eNB to the third eNB of the second MNO when the terminal moves and if a communication link is not established between the first eNB and the third eNB, A communication packet may be transmitted to the second eNB through the established communication link and transmitted to the terminal through the third eNB.

Wherein the control unit is configured to perform a handover from the second eNB to the fourth eNB of the second MNO as the terminal moves and is handed over from the fifth eNB of the first MNO to the fourth eNB of the second MNO, If the distance between the fourth eNBs is closer, the mobile node can request handover to the fifth eNB by requesting the EPC of the first MNO.

Wherein the first communication unit receives a network connection request from a second terminal, and when the second terminal is a subscriber of the second MNO, the access permission response to the network access request transmitted to the eNB belonging to the second MNO is received A data channel with the second terminal can be formed.

Wherein the first communication unit and the second communication unit are connected to the eNBs belonging to the second MNO and the eNBs belonging to the second MNO via a communication link and a data channel established between the first communication unit and the second communication unit and an eNB belonging to the second MNO, It is possible to relay a mobile communication packet between two terminals.

The RAN sharing method according to an embodiment of the present invention and some effects that can be achieved by the eNB apparatus therefor are as follows.

i) The service quality of the mobile communication network can be improved.

ii) It is possible to prevent the load from being concentrated on the eNB of the specific network operator.

iii) It can improve the profitability of the network operator.

iv) The service satisfaction of the network subscriber can be improved.

However, the RAN sharing method according to an embodiment of the present invention and the eNB apparatus therefor are not limited to those described above, and other effects not mentioned can be obtained from the following description. And will be apparent to one of ordinary skill in the art.

1 is a schematic diagram for explaining a RAN sharing method according to an embodiment of the present invention.
2 (a) to 2 (c) are illustrative diagrams illustrating an implementation of an X2r interface according to an embodiment of the present invention.
FIG. 3A is a diagram illustrating a conventional network connection process, and FIG. 3B is a diagram illustrating a network connection process according to an embodiment of the present invention.
FIG. 4A is a diagram illustrating a conventional handover process, and FIG. 4B is a diagram illustrating a handover process according to an embodiment of the present invention.
5 is a diagram illustrating a scenario for explaining a handover process according to an embodiment of the present invention.
6 is a block diagram showing a configuration of an eNB apparatus according to an embodiment of the present invention.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood, however, that the intention is not to limit the invention to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In addition, numerals (e.g., first, second, etc.) used in the description of the present invention are merely an identifier for distinguishing one component from another.

Also, in this specification, when an element is referred to as being "connected" or "connected" with another element, the element may be directly connected or directly connected to the other element, It should be understood that, unless an opposite description is present, it may be connected or connected via another element in the middle.

In addition, components referred to in this specification as 'units', 'modules', and the like refer to hardware components such as software, FPGA, or ASIC, and these components perform certain roles. However, the components are not limited to software or hardware. The component may be configured to reside on an addressable storage medium. Further, two or more components may be merged into one component, or one component may be divided into two or more functions according to a more refined function. In addition, each of the components to be described below may additionally perform some or all of the functions of the other components in addition to the main functions that the user is responsible for, and some of the main functions And may be performed entirely by components.

In this specification, 'MNO' refers to a network operator, 'HMNO (Home MNO)' refers to a network operator to which a terminal is subscribed, and 'FMNO (Foreign MNO)' refers to a network operator to which a terminal does not subscribe. The 'Home Evolved Packet Core' (HEPC) refers to the EPC of the network operator to which the UE has subscribed, 'FEPC (Foreign Evolved Packet Core)' refers to the EPC of the network operator to which the UE does not subscribe, 'ENodeB of the network operator to which the UE has subscribed, and' FeNB (Foreign eNodeB) 'refers to the eNodeB of the network operator to which the UE does not subscribe.

1 is a schematic diagram for explaining a RAN sharing method according to an embodiment of the present invention.

While the MT 10 is connected to the HeNB 100 and is receiving the streaming video stored in the server 300 in the path of EDBA, the MT 10 moves and satisfies the minimum QoS (Quality of Service) of the data channel If you do not, the streaming service will stop. Likewise, if all of the eNBs 100 of the HMNO are in a congested state and do not have the radio resources to maintain the streaming, the streaming service will be stopped as well.

If the MT 10 is configured and allowed to be connected to the FMNO with or without maintaining a connection with the HMNO and the MT 10 is allowed to maintain a video streaming service for the FeNB 200 Channel, and a wired / wireless link exists between the FeNB 200 and the HeNB 100. [ In this case, the video streaming service can be routed to the terminal 10 via the FeNB 200 in the path of E-D-B-C-A without interruption or rejection. Here, the FeNB 200 operates as a relay between the HeNB 100 and the terminal 10. The terminal 10 uses radio resources of the FeNB 200 rather than the HeNB 100 and the HeNB 100 is maintained as an anchor point of the HEPC 150. [

Terminal configuration and connectivity

1) Soft-SIM: To access multiple networks, the terminal needs multiple SIM cards. However, a more flexible software SIM enables the switching of the Uu interface between the terminal and the eNB. The SIM card information associated with each MNO may be part of the software package. Here, the terminal includes not only a smart phone but also various types of terminals capable of subscribing to a MNO such as a PDA, a tablet PC, and receiving a mobile communication service.

2) Multiple Connections: The 3GPP LTE Release-12 standard supports dual connections of terminals and allows for seamless load balancing between heterogeneous networks. Likewise, the UE according to the embodiment of the present invention can be configured to be able to simultaneously connect to a plurality of eNBs.

3) Operational Spectrum, Interference and Carrier Aggregation: According to an embodiment of the present invention, the initial frequency placement of each MNO is unchanged. The eNBs should maintain their operating frequency and the terminals 10 should be able to operate within the frequency band of the target FeNBs. Therefore, no ReRANS-related interference is applied to the system. For multiple connections, terminals must be able to bind carriers of different bands belonging to different MNOs.

With HeNB FeNB  Between X2r  Interface and ReRANS  plane

For the implementation of ReRANS according to an embodiment of the present invention, the interface between eNBs of different MNOs needs to be standardized. It should combine the functionality of the intra-MNO (intra-MNO), ie the interface of the relay backhaul with the X2 interface between the eNBs belonging to the same MNO.

1) ReRANS plane: The inter-MNO (Inter-MNO), that is, the X2r interface between eNBs of different MNOs complements the X2 interface in the MNO to enable ReRANS operation between eNBs. The eNBs in the ReRANS plane where ReRANS is running are interconnected by IP routing functions and provide routing functions in the intra-MNO and routing in the inter-MNO. The handling of traffic in the conventional X2 interface and thereby the intra-MNO in the ReRANS plane does not change.

2) X2r link: The X2r backhaul link can have various forms as shown in FIG. If the network operators are sharing towers as shown in FIG. 2 (a), the X2r link can be implemented by a simple waveguide, fiber optic or coaxial cable connection. If there is no tower sharing, then the X2r link may be a microwave link, or another form of LAN, MAN or WAN, as shown in Figure 2 (b). In an expressway or the like, an optical fiber or a microwave link may be ideal as shown in Fig. 2 (c). A multi-hop X2r connection may be achieved in which the backhaul link between the HeNB and the FeNB is achieved by another FeNB.

3) X2r signaling and protocol: Similar to the X2 link, the X2r link can be used as an X2 application protocol (X2AP) for device mobility, SCTP for transport layer functions, IPv6 / IPv4 for routing functions, Standardized protocols can be used.

Network access and ReRANS Handover

Compared with the conventional method, the network connection process of the UE and the X2-based handover process in the intra MNO are unchanged, which is shown in FIGS. 3A and 4A. FIGS. 3A and 4A show a standard LTE initial access procedure and an X2 based handover procedure, respectively. On the other hand, the X2r-based handover and network connection procedure according to ReRANS should follow the following guidelines. i) The terminal must always connect to the HEPC via the serving HeNB. ii) A terminal can be handed over from one FeNB to another FeNB under the control of the serving HeNB. iii) The initial serving HeNB may be replaced with another HeNB according to the handover process in the standard intra-MNO. iv) The handover procedure in the conventional intra-MNO exists by default, which means that neighboring eNBs belonging to the HMNO are always a priority target for handover.

1) Initial network connection process: The default access point (AP) for all terminals is HeNB. Unless the HeNB is handed over to another HeNB, the initial HeNB acts as an anchor to the HMNO.

The initial connection procedure follows Figure 3A. Specifically, in step 1, a control link is established between the terminal 10 and the HeNB 100, and in step 2, a connection request is transmitted from the terminal 10 to the HEPC 150 via the HeNB 100. In step 3, when the authentication of the terminal 10 is completed, the data channel between the terminal 10 and the HeNB 100 is set in step 5 via step 4, and the network connection process is terminated in step 7.

The FeNB 200 connected to the HeNB 100 via the X2r link is connected to the terminal 10 to the HEPC 150 in cooperation with the HeNB 100 as shown in Figure 3B, Can be connected. If the HeNB 100 is not present, the FeNB 200 rejects the connection request of the terminal 10. [ Since the FeNB 200 can not detect the HEPC 150, it must search the HeNB 100 as an anchor.

3B, a control link is established between the terminal 10 and the FeNB 200 in step 1 and a network connection request from the terminal 10 is transmitted to the HEPC 150 through the FeNB 200 and the HeNB 100, (Steps 2, 3, 4). The X2r link between the FeNB 200 and the HeNB 100 is established in step 8 and the data channel between the terminal 10 and the FeNB 200 is established in step 9, Is set. Thereafter, in step 12, the network connection process is terminated.

2) ReRANS handover signaling: Even if the terminal is serviced by FeNB, the terminal must always maintain a regular signaling relationship with the HeNB through FeNB if necessary. This is because the HeNB is the AP for the HMNO. Since the FeNB is not functionally aware of the HEPC, there are two steps involved in EPC devices such as mobile management entity (MME) and serving gateway (S-GW) in the conventional X2 based handover process Change request and 11. route change ACK) are omitted in the X2r based handover process as shown in FIG. 4B.

4A, in step 2, the source eNB 100 measures a data channel state with the terminal 10, and in step 3, the source eNB 100 measures a state of a hand of the terminal 10 according to the measured data channel state Over. In step 4, the source eNB 100 requests handover to a target eNB 170 that belongs to the same MNO as its MNO, and in step 6, receives a handover response from the target eNB 170. [ The target eNB 170 handover the terminal 10 to the target eNB 170 through steps 7, 8 and 9, and in steps 10 and 11, the target eNB 170 transmits to the HEPC 150 including the MME and S-GW It forwards the route change request, and receives a response thereto. The radio resources of the source eNB 100 are released in step 12, and the handover process is terminated.

4B, the HeNB 100 measures a data channel state with the terminal 10 in step 2. In step 3, the HeNB 100 measures a state of a hand of the terminal 10 according to the measured data channel state, Over. In step 4, the HeNB 100 requests handover to the FeNB 200 belonging to another MNO, and receives the handover response from the FeNB 200 in step 5. If the handover is determined, the HeNB 100 and the FeNB 200 establish an X2r link in step 6. Thereafter, the HeNB 100 handover the terminal 10 to the FeNB 200 through steps 8, 9 and 10. [ The FeNB 200 relays mobile communication packets between the HeNB 100 and the terminal 10. Here, the HEPC 150 provides a service to the terminal 10 through the HeNB 100, so that the S1 path between the HEPC 150 and the HeNB 100 is not changed.

3) Selection and / or dual connection of FeNB for handover: Connecting the terminal to a specific FeNB is managed by the HeNB with the help of FeNB. HeNB can select FeNB considering various factors. For example, HeNB can choose FeNB which can achieve delay minimization, power minimization, maximization of efficiency, maximization of throughput and maximization of income.

ReRANS  Example of IP packet routing in a plane

Figure 5 shows ReRANS-based IP mobility management. While the terminal 10 receives the IP packet # 1 to the IP packet # 6 at the positions # 1 to # 6, the terminal 10 passes through three different areas of the MNO (HMNO, FMNO 1, FMNO 2). All six packets arrive at HEPC. Since HEPC does not functionally detect FeNBs, only two HeNBs, HeNB 1 and HeNB 6, receive packets from the HEPC.

At location # 1, the terminal 10 directly receives packet # 1 from HeNB 1. When the terminal 10 moves to an area not covered by the HMNO, the terminal 10 is handed over to FeNB 2 of FMNO 1. Packets # 2, # 3 and # 4 are forwarded through the X2r tunnel, and at location # 2, the terminal 10 receives packet $ 2 from FeNB2. At location # 3, the terminal 10 is served by FeNB 3 of FMNO 2. Since HeNB 1 is not directly connected to FeNB 3, FeNB 2 relays packet # 3. This relay is enabled because all three eNBs are part of the same ReRANS plane and basic mobile IP routing is applied.

At location # 4, FeNB 2 relays packet # 4 to FeNB 4 using the X2 interface at the intra-MNO. Note that, at this time, HeNB 1 is an anchor point of the terminal 10 for HMNO. However, if the UE 10 moves only to the location # 5 where only the FeNB 5 can provide radio resources, the FeNB 5 becomes closer to the HeNB 6 than to the HeNB 1, so that the X2-based handover in the intra MNO becomes necessary. Unlike the ReRANS based handover in which the HEPC does not participate, the handover of the intra MNO is managed by the MME of the HEPC. Therefore, packet # 5 is forwarded to HeNB 6, then forwarded to FeNB 5, and packet # 6 is sent to terminal 10 via HeNB 6 when terminal 10 is at location # 6.

As described above, according to the IP architecture, individual packets can be routed through different FeNBs. Thus, for optimal packet routing, all HeNBs can maintain updated routing tables, link state and other information of FeNBs and terminals.

Billing  unit

The charging unit records the total amount of data flowing through all X2r interfaces between MNOs. These records enable financial agreements among MNOs. For example, depending on the ratio of the amount of data flowing from the first MNO to the second MNO through the X2r interface and the amount of data flowing through the X2r interface to the first MNO in the second MNO, Import costs can be determined. Here, the charging unit may be connected to the eNBs having the X2r link.

complexity

According to the embodiment of the present invention, all the additional functions can be implemented in software, except for the physical upgrade of the X2r link, so that the implementation cost is reduced.

6 is a block diagram showing a configuration of an eNB 600 according to an embodiment of the present invention.

Referring to FIG. 6, an eNB 600 according to an embodiment of the present invention may include a first communication unit 610, a second communication unit 630, and a controller 650. The first communication unit 610, the second communication unit 630, and the control unit 650 may be implemented by one or more microprocessors, and may operate under the control of a program stored in a memory (not shown). The eNB device 600 according to an embodiment of the present invention may be in a state belonging to the first MNO.

The first communication unit 610 performs communication with the terminal. The first communication unit 610 can determine the data channel state with the subscriber of the first MNO.

The control unit 650 requests handover to the second eNB of the second MNO based on the determined data channel state and controls the terminal according to the handover response of the second eNB to handover the terminal to the second eNB . The control unit 650 can request handover to the second eNB when the Quality of Service (QoS) of the data channel with the UE is less than a predetermined value. Herein, the first MNO and the second MNO mean different MNOs.

The second communication unit 630 transmits a mobile communication packet to the second eNB through the communication link X2r established between the first eNB and the second eNB so that the mobile communication packet received through the EPC of the first MNO can be transmitted to the terminal. Lt; / RTI >

After the terminal is handed over to the second eNB, if the terminal moves and is handed over from the second eNB to the third eNB of the second MNO, and a communication link is not established between the first eNB and the third eNB, The communication unit 630 transmits the mobile communication packet to the second eNB through the communication link established between the first eNB and the second eNB, and the second eNB transmits the packet to the third eNB.

Also, after the UE is handed over to the second eNB, the UE moves and is handed over from the second eNB to the fourth eNB of the second MNO. The distance between the first eNB and the fourth eNB, If the distance between the fifth eNB and the fourth eNB is closer, the control unit 650 can request the handover to the fifth eNB by requesting the EPC of the first MNO. This is due to the handover process by the X2 interface.

Meanwhile, if the second communication unit 630 receives a network connection request from the second terminal through the first communication unit 610, the second communication unit 630 determines whether the second terminal belongs to the second MNO when the second terminal is a subscriber of the second MNO, and sends a network connection request to the eNB. When the access permission response is received from the eNB belonging to the second MNO, the first communication unit 610 forms a data channel with the second terminal.

After the data channel with the second terminal is established, the first communication unit 610 and the second communication unit 630 communicate with the eNB belonging to the second MNO through the communication link X2r and the data channel Uu, And relays the mobile communication packet between the eNB belonging to the MNO and the second terminal.

According to an embodiment of the present invention, ReRANS is particularly useful in regions where an overloaded cess of a particular MNO coexists with an underused cell of another MNO. Accordingly, the user feels satisfaction of the mobile communication service, and the MNO can improve the profit. Also, since ReRANS can be regarded as an integration of radio resources between MNOs, the number of terminals connected to all eNBs can be appropriately adjusted to reduce the load on eNBs.

Meanwhile, the embodiments of the present invention described above can be written in a program that can be executed in a computer, and the created program can be stored in a medium.

The medium may be a storage such as a magnetic storage medium (e.g., ROM, floppy disk, hard disk, etc.), an optical reading medium (e.g. CD ROM, DVD, etc.) and a carrier wave Media, but is not limited thereto.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

10: Terminal
100: HeNB
150: HEPC
200: FeNB
250: FEPC
300: server
600: eNB device
610:
630:
650:

Claims (13)

Determining a data channel state with a first eNode B (eNodeB) of a first MNO (mobile network operator) with a terminal that is a subscriber of the first MNO;
The first eNB requesting a handover to a second eNB of a second MNO different from the first MNO based on the determined data channel state;
Controlling the terminal according to a handover response of the second eNB to handover the terminal to a second eNB;
And transmitting the mobile communication packet to the second eNB through a communication link established between the first eNB and the second eNB so that a mobile communication packet received through an EPC (Evolved Packet Core) of the first MNO can be transmitted to the terminal. ; And
If the terminal is moved and handed over from the second eNB to the third eNB of the second MNO and a communication link is not established between the first eNB and the third eNB, Link to the second eNB,
Wherein the terminal is moved and handed over from the second eNB to the fourth eNB of the second MNO and the fifth eNB of the first MNO and the fourth eNB of the fourth MN are handed over from the first eNB to the fourth eNB, Requesting the EPC of the first MNO to request handover to the fifth eNB,
Wherein when the UE is handed over to the third eNB, a mobile communication packet transmitted to the second eNB is transmitted to the third eNB and is transmitted to the UE via the third eNB. network sharing method.
The method according to claim 1,
Wherein the requesting handover to the second eNB comprises:
And requesting a handover to the second eNB when a Quality of Service (QoS) of a data channel with the MS is less than a preset value.
delete delete The method according to claim 1,
The RAN sharing method comprises:
Receiving a network connection request from a second terminal different from the terminal; And
When the second terminal is a subscriber of the second MNO, transmits a network connection request to a second eNB belonging to the second MNO, and upon receiving a connection permission response from the second eNB, The method comprising the steps of:
6. The method of claim 5,
The RAN sharing method comprises:
Further comprising relaying a mobile communication packet between the second eNB and the second terminal through a communication link established between the second eNB and the second eNB after the data channel with the second terminal is established RAN sharing method.
A computer program stored on a medium for executing a RAN sharing method of any one of claims 1, 2, 5, and 6 in combination with hardware.
In the eNB apparatus belonging to the first MNO,
A first communication unit for determining a data channel state with a subscriber terminal of the first MNO;
Requesting handover to a second eNB of a second MNO different from the first MNO based on the determined data channel state and controlling the terminal according to a handover response of the second eNB, a control unit for performing handover to the eNB; And
And transmitting the mobile communication packet to the second eNB through a communication link established between the first eNB and the second eNB so that a mobile communication packet received through an EPC (Evolved Packet Core) of the first MNO can be transmitted to the terminal. To the second communication unit,
Wherein the second communication unit comprises:
If the terminal is moved and handed over from the second eNB to the third eNB of the second MNO and a communication link is not established between the first eNB and the third eNB, Link to the second eNB,
Wherein,
Wherein the terminal is moved and handed over from the second eNB to the fourth eNB of the second MNO and the fifth eNB of the first MNO and the fourth eNB of the fourth MN are handed over from the first eNB to the fourth eNB, Requests the EPC of the first MNO to request handover to the fifth eNB,
When the UE is handed over to the third eNB, the mobile communication packet transmitted to the second eNB is transmitted to the third eNB and is transmitted to the UE through the third eNB.
9. The method of claim 8,
Wherein,
And requests handover to the second eNB when a Quality of Service (QoS) of a data channel with the MS is less than a preset value.
delete delete 9. The method of claim 8,
Wherein the first communication unit comprises:
Receiving a network connection request from a second terminal different from the terminal, and when the second terminal is a subscriber of the second MNO, the access permission response to the network access request transmitted to the second eNB belonging to the second MNO is received And forms a data channel with the second terminal.
13. The method of claim 12,
Wherein the first communication unit and the second communication unit,
And relays a mobile communication packet between the second eNB and the second terminal through a communication link and a data channel established between the eNB and the second eNB after the data channel with the second terminal is established. .

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11516801B2 (en) 2019-08-16 2022-11-29 Samsung Electronics Co., Ltd. Method and apparatus for sharing frequency resources between mobile communication providers in wireless communication system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11516801B2 (en) 2019-08-16 2022-11-29 Samsung Electronics Co., Ltd. Method and apparatus for sharing frequency resources between mobile communication providers in wireless communication system

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