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EP-4135208-B1 - BASE STATION SYSTEM

EP4135208B1EP 4135208 B1EP4135208 B1EP 4135208B1EP-4135208-B1

Inventors

  • SEKINE, Genichiro
  • KANEKO, ICHIRO
  • TANOUE, KATSUMI

Dates

Publication Date
20260513
Application Date
20130131

Claims (8)

  1. A method of mounting a base station device (1), a wireless transmission device (2) and a data transfer device (3) for a mobile communication system, the method comprising: mounting the base station device (1) outdoors on one of a wall and a pole (71) via a first mounting member (61), wherein the base station device (1) comprises a first enclosure (12) that accommodates a first electronic equipment (11) to relay data between a plurality of mobile stations and a mobile backhaul network and protects the first electronic equipment (11) from ingress of both water and dust; mounting the data transfer device (3) outdoors on the one of the wall and the pole (71) via a second mounting member (63), wherein the data transfer device (3) comprises a second enclosure (32) that accommodates a second electronic equipment (31) to transfer data between the base station device (1) and the wireless transmission device (2) and protects the second electronic equipment (31) from ingress of both water and dust; connecting a communication cable (41) from a first connection terminal (13) on the first enclosure (12) to a second connection terminal (33) on the second enclosure (32) of the data transfer device (3); connecting the data transfer device (3) between the base station device (1) and the wireless transmission device (2) for relaying data; and mounting the wireless transmission device (2) outdoors on the one of the wall and the pole (71) via a third mounting member (62), wherein the wireless transmission device (2) comprises a third enclosure (22) that accommodates a third electronic equipment (21) to perform wireless transmission to connect the base station device (1) to the mobile backhaul network and protects the third electronic equipment (21) from ingress of both water and dust, connecting a communication cable (42) from a third connection terminal (34) on the second enclosure (32) to a fourth connection terminal (23) on the third enclosure (22), wherein the first enclosure (12), the second enclosure (22), and the third enclosure (32) are distinct from one another.
  2. The method according to Claim 1, wherein the data transfer device (3) is one of a switch and a router.
  3. The method according to Claim 1, wherein the first and second enclosures (12, 32) provide protection corresponding to at least IP65 according to IEC 60529 defined by IEC, International Electrotechnical Commission.
  4. The method according to Claim 1, wherein the base station device (1) is a UTRAN, UMTS Terrestrial Radio Access Network, or an E-UTRAN, Evolved UTRAN, base station.
  5. A combination of a base station device (1), a wireless transmission device (2) and a data transfer device (3) for a mobile communication system, the base station device (1) comprising: a first mounting member (61) configured to mount the base station device (1) outdoors on one of a wall and a pole (71); a first electronic equipment (11) configured to relay data between a plurality of mobile stations and a mobile backhaul network; and a first enclosure (12) accommodating the first electronic equipment (11), and configured to protect the first electronic equipment (11) from ingress of both water and dust, the data transfer device (3) comprising: a second mounting member (63) configured to mount the data transfer device (3) outdoors on the one of the wall and the pole (71); a second electronic equipment (31) configured to transfer data between the base station device (1) and the wireless transmission device (2); a second enclosure (32) accommodating the second electronic equipment (31), and configured to protect the second electronic equipment (31) from ingress of both water and dust, wherein the first enclosure (12) comprises a first connection terminal (13) and the second enclosure (32) comprises a second connection terminal (33), the first connection terminal (13) and the second connection terminal (33) being operatively connected to each other via a communication cable (41), wherein the data transfer device (3) is connected between the base station device (1) and the wireless transmission device (2) for relaying data, wherein the wireless transmission device (2) comprises: a third mounting member (62) configured to mount the wireless transmission device (2) outdoors on the one of the wall and the pole (71); a third electronic equipment (21) configured to perform wireless transmission to connect the base station device (1) to the mobile backhaul network; and a third enclosure (22) accommodating the third electronic equipment (21), and configured to protect the third electronic equipment (21) from ingress of both water and dust, wherein the second enclosure (32) comprises a third connection terminal (34) and the third enclosure (22) comprises a fourth connection terminal (23), the third connection terminal (34) and the fourth connection terminal (23) being operatively connected via a communication cable (42), wherein the first enclosure (12), the second enclosure (22), and the third enclosure (32) are distinct from one another.
  6. The combination according to Claim 5, wherein the data transfer device (3) is one of a switch and a router.
  7. The combination according to Claim 5, wherein the first and second enclosures (12, 32) provide protection corresponding to at least IP65 according to IEC 60529 defined by IEC, International Electrotechnical Commission.
  8. The combination according to Claim 5, wherein the base station device (1) is a UTRAN, UMTS Terrestrial Radio Access Network, or an E-UTRAN, Evolved UTRAN, base station.

Description

Technical Field The present invention relates to a mounting method of a combination of a base station device, and a wireless transmission device and a data transfer device, and to such a combination. Background Art A wireless transmission system using microwaves or millimeter waves is generally used to connect a base station to a mobile backhaul network. Wireless connection between a base station and a mobile backhaul network has advantages over wired connection using optical fibers in easy network construction, high economic efficiency, and low constraints on the installation location of the base station. A mobile backhaul network is an upper-level network to which a base station is connected. The mobile backhaul network includes, for example, a control node that performs signaling with a base station and a mobile station, a switching node that processes voice calls, and a transfer node that performs data transfer. Typically, the mobile backhaul network is managed by a mobile telecommunications carrier (a mobile operator). The mobile backhaul network includes a core network and, in some architecture, further includes a radio access network node. For example, in the case of UTRAN (UMTS Terrestrial Radio Access Network), the mobile backhaul network includes an RNC (Radio Network Controller) and a core network (e.g., a SGSN (Serving GPRS Support Node), a GGSN (Gateway GPRS Support Node), and an MSC (Mobile Switching Center)). Further, in the case of E-UTRAN (Evolved UTRAN), the mobile backhaul network includes a core network (e.g., an MME (Mobility Management Entity), an S-GW (Serving Gateway), and a P-GW (PDN Gateway)). For example, Patent Literature 1 is known which describes a wireless transmission device for connecting a base station to a mobile backhaul network. Patent Literature 1 discloses a microwave wireless transmission device that includes an antenna and a front-end device (ODU: Outdoor Unit) installed outdoors and a back-end device (IDU: Indoor Unit) installed indoors. The front-end device (ODU) primarily performs analog signal processing such as frequency up/down conversion and amplification. The back-end device primarily performs digital signal processing such as channel coding/decoding, interleaving/deinterleaving, and modulation/demodulation. WO 2007/144022 relates to a base transceiver station for use in a wireless telecommunications system comprising at least one radio transceiver of a first type connected to an antenna of a first type for providing wireless access for remote subscriber units and a radio transceiver of a second type connected to an antenna of a second type. The radio transceivers of the first type are operably connected via cables, in an intermediate frequency domain, to the transceiver of the second type. EP 1 404 024 A describes outdoor radio equipment which includes a radio transmitting and receiving part for performing a modulation and demodulation process, and a common part for controlling an action of the radio transmitting and receiving part. The radio transmitting and receiving part is provided at the common part so as to be exposed to open air. EP 2 299 775 A describes a node of a radio access network. The node comprises an access device having a transceiver suitable for exchanging upstream and downstream traffic with a plurality of terminals located in a coverage area thereof, a digital unit suitable for performing base-band processing of the upstream and downstream traffic, and a traffic link connecting the transceiver and the digital unit. The node further comprises a backhauling apparatus having an outdoor unit suitable for exchanging the upstream and downstream traffic with a further node of the radio access network by means of a point-to-point microwave connection. The transceiver is connected to the outdoor unit by means of a backhauling link. The digital unit of the access device and the outdoor unit of the backhauling apparatus are configured to exchange the upstream and downstream traffic through the traffic link, the transceiver and the backhauling link. Citation List Patent Literature Patent Literature 1: International Patent Publication No. WO 2011/162281 Summary of Invention Technical Problem As described in Patent Literature 1, in the known wireless transmission device for connecting a base station to a mobile backhaul network, a part (i.e., the front-end) of the device is installed outdoors. However, the back-end device of the wireless transmission device is installed indoors (e.g., inside a building or a shelter). Further, the base station device is also installed indoors. Furthermore, a data transfer device (e.g., a router, a layer-3 switch or a layer-2 switch) is used to transfer data (e.g., IP (Internet Protocol) packets or MAC (Media Access Control) frames) between the base station and the wireless transmission device in some cases, and the data transfer device is also installed indoors. The inventors of the present invention have made studies i