WO2007012284A1 - Dispositif station de base sans fil multimode et de niveau supérieur, système sans fil multimode, procédé de transfert et procédé d’accès - Google Patents

Dispositif station de base sans fil multimode et de niveau supérieur, système sans fil multimode, procédé de transfert et procédé d’accès Download PDF

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Publication number
WO2007012284A1
WO2007012284A1 PCT/CN2006/001890 CN2006001890W WO2007012284A1 WO 2007012284 A1 WO2007012284 A1 WO 2007012284A1 CN 2006001890 W CN2006001890 W CN 2006001890W WO 2007012284 A1 WO2007012284 A1 WO 2007012284A1
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WO
WIPO (PCT)
Prior art keywords
base station
mode
wireless
processing unit
wireless base
Prior art date
Application number
PCT/CN2006/001890
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English (en)
Chinese (zh)
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WO2007012284A8 (fr
Inventor
Ruobin Zheng
Original Assignee
Huawei Technologies Co., Ltd.
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Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2007012284A1 publication Critical patent/WO2007012284A1/fr
Publication of WO2007012284A8 publication Critical patent/WO2007012284A8/fr

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Classifications

    • 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
    • H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/142—Reselecting a network or an air interface over the same radio air interface technology

Definitions

  • Multi-mode wireless base station upper-level device thereof and multi-mode wireless system and switching method and access method thereof
  • the present invention relates to the field of communications, and in particular, to an implementation technology of a multimode wireless system.
  • Cell handover is a supporting technology for mobile cellular networks.
  • the handover data of the source base station When performing cell handover under the same base station controller, the handover data of the source base station must be accessed by the wired cable to the base station controller, and after being switched by the handover processing unit of the base station controller, the data is forwarded to the destination base station.
  • - Existing large-scale wireless networks are typically single-mode wireless systems. Its system structure is shown in Figure 1, which consists of a wireless base station and a wireless base station controller. The wireless base station and the wireless base station controller are connected by a wired cable, and there is no interconnection between the wireless base stations.
  • the wireless base stations are concentrated and aggregated between the wireless base station controllers, and the bandwidth of the wireless base station controller becomes a bottleneck, and the system capacity is limited.
  • the wireless base station will ⁇
  • the switching data of the source base station must be forwarded by the wired transmission processing unit of the base station controller via the wired cable, and then processed by the handover processing unit to be forwarded to the destination multi-mode wireless base station, thereby causing The switching delay is large.
  • An object of the present invention is to provide a multi-mode wireless base station, a device and a multi-mode wireless system thereof, and a handover method and an access method, so that in a wireless communication system, fast cell handover can be performed between base stations, thereby The cell handover delay is shortened.
  • the present invention provides a multimode wireless base station, including:
  • Multi-mode wireless base station processing unit for wireless users accessing each mode, transmitting wireless user signals in active/standby mode or load sharing mode between the wireless channel and the upper-level device of the multi-mode wireless base station, and the source multi-mode wireless
  • the handover data of the base station is transmitted to the upper-level device of the multi-mode radio base station through the wireless channel;
  • Switching unit For switching or exchanging wireless user signals between the various multimode radio base station processing units back to the respective multimode radio base station processing units themselves.
  • the multi-mode wireless base station may further include:
  • the wired transmission processing unit is configured to: transmit, by using a wired cable, a wireless user signal between the primary device or the load sharing mode and the upper-level device of the multi-mode wireless base station, and transmit the switching data of the source multi-mode wireless base station through the wired cable.
  • the wired transmission processing unit can receive the wireless user signal that the switching unit switches from the multimode wireless base station processing unit or itself.
  • the present invention also provides a higher-level device of a multi-mode wireless base station, including:
  • the multi-mode wireless subscriber station processing unit is configured to: transmit, by using a wireless channel and a multi-mode wireless base station, a wireless user signal in an active/standby manner or a load sharing manner, and transmit the handover data transmitted by the source multi-mode wireless base station through the wireless channel to the handover.
  • the multi-mode wireless subscriber station processing unit is composed of more than one processing unit;
  • Switching processing unit for switching wireless user signals between processing units of each multi-mode wireless subscriber station or switching back to each The multi-mode wireless base station processing unit itself transmits the handover data transmitted by the multi-mode wireless subscriber station processing unit to the destination multi-mode wireless base station after the handover process.
  • the upper-level device of the multi-mode wireless base station may further include:
  • Multimode wireless subscriber station processing unit bypass switch matrix consists of a bypass switch inside the processing unit of the multimode wireless subscriber station. When it is through, the cell handover data transmitted by the source multimode wireless base station through the wireless channel is transmitted to the The handover processing unit; when bypassing, directly transmits the cell handover data transmitted by the source multimode radio base station through the radio channel to the destination multimode radio base station.
  • the upper-level device of the multi-mode wireless base station may further include: a wired transmission processing unit: configured to transmit the wireless user signal between the wired cable and the multi-mode wireless base station, and transmit the source multi-mode wireless base station through the wired cable
  • the incoming switching data is passed to the switching processing unit, and the wired transmission processing unit can receive the wireless user signal that the switching processing unit switches from the multi-mode wireless subscriber station processing unit or itself;
  • Wired transmission processing unit bypass switch matrix before the wired transmission processing unit, when it is through, the cell handover data transmitted by the source multimode wireless base station through the wired cable is transmitted to the handover processing unit; when it is bypassed The cell handover data transmitted by the source multimode radio base station through the wired cable is directly bypassed to the destination multimode radio base station.
  • the present invention further provides a multi-mode wireless system based on the above-mentioned multi-mode wireless base station and the upper-level device of the multi-mode wireless base station, and the system specifically includes: the upper-level device of the multi-mode wireless base station:
  • the wireless user signal is transmitted between the wireless channel or the wired cable and the multi-mode wireless base station in the active/standby mode or the load sharing mode, and the switching data transmitted by the source multi-mode wireless base station through the wireless channel or the wired cable is directly passed through the bypass switch.
  • the bypass is transmitted to the destination multi-mode radio base station or the handover process through the handover processing unit is delivered to the destination multi-mode radio base station;
  • the multi-mode wireless base station a wireless user for accessing each mode, performing local exchange on each mode wireless user signal in the same cell, and using a wireless channel or a wired cable and a higher-level device of the multi-mode wireless base station
  • the wireless subscriber signal or the cell handover data is transmitted in an active/standby manner or a load sharing manner.
  • the upper level device of the multimode wireless base station includes but is not limited to: a multimode wireless base station controller.
  • the present invention also provides a method for base station cell handover based on the multi-mode wireless system described above, including:
  • the source multimode radio base station transmits the handover data to the upper-level device of the multi-mode radio base station through a wireless channel or a wired cable, and the device directly transmits the received handover data to the destination multi-mode through the bypass switch matrix unit.
  • the wireless base station forwards the received handover data to the destination multi-mode wireless base station after the handover processing unit performs the handover process.
  • the method specifically includes:
  • the switching data of the source multi-mode wireless base station is transmitted to the wired transmission processing unit in the upper-level device of the multi-mode wireless base station through the wired cable; the wired transmission processing unit in the upper-level device of the multi-mode wireless base station transmits the switching data After the switching processing unit switches the processing to the switching processing unit in the upper-level device of the multi-mode wireless base station, the switching data is forwarded to the destination by the wired transmission processing unit in the upper-level device of the multi-mode wireless base station via the wired cable.
  • Multimode wireless base station
  • the switching data of the source multi-mode wireless base station is transmitted to the upper-level device of the multi-mode wireless base station through the wired cable; the upper-level device of the multi-mode wireless base station directly directly passes the bypass switch located in front of the wired transmission processing unit Switch data by wired cable Send to the destination multimode wireless base station;
  • the handover data of the source multimode radio base station is sent to the multimode radio subscriber station processing unit in the upper-level device of the multi-mode radio base station through the radio channel; the multi-mode radio subscriber station in the upper-level device of the multi-mode radio base station
  • the processing unit delivers the handover data to the handover processing unit, and after the handover processing unit handover processing, the handover data is forwarded to the destination through the wireless channel by the multi-mode wireless subscriber station processing unit in the upper-level device of the multi-mode wireless base station.
  • Modular wireless base station ;
  • the handover data of the source multimode radio base station is sent to the multimode radio subscriber station processing unit in the upper-level device of the multi-mode radio base station through the radio channel; the multi-mode radio subscriber station in the upper-level device of the multi-mode radio base station The processing unit directly forwards the switching data to the destination multi-mode wireless base station via the wireless channel through its internal bypass bypass switch;
  • the handover data of the source multimode radio base station is sent to the multimode radio subscriber station processing unit in the upper-level device of the multi-mode radio base station through the radio channel; the multi-mode radio subscriber station in the upper-level device of the multi-mode radio base station
  • the processing unit transfers the received handover data to the handover processing unit, and after the handover processing unit performs the handover processing, the handover data is forwarded to the destination multimode by the wired transmission processing unit in the upper-level device of the multi-mode wireless base station via the wired cable.
  • the wireless base station; or the switching data of the source multi-mode wireless base station is transmitted to the wired transmission processing unit in the upper-level device of the same multi-mode wireless base station through a wired cable; the upper level of the multi-mode wireless base station
  • the wired transmission processing unit in the device passes the received handover data to the handover processing unit, and after the handover processing unit handover processing, the handover data passes through the multi-mode wireless subscriber station processing unit in the upper-level device of the multi-mode wireless base station.
  • the wireless channel is forwarded to the destination multimode wireless base station;
  • the handover data of the source multimode radio base station is sent to the multimode radio subscriber station processing unit in the upper-level device of the multi-mode radio base station through the radio channel; the multi-mode radio subscriber station in the upper-level device of the multi-mode radio base station
  • the processing unit directly forwards the switching data to the destination multi-mode wireless base station via the wired cable through the bypass switch of the internal bypass and the bypass bypass switch located before the wired transmission processing unit; or, the source multi-mode wireless
  • the switching data of the base station is transmitted to the wired transmission processing unit in the upper-level device of the same multi-mode wireless base station by using a wired cable; the upper-level device of the multi-mode wireless base station is transmitted through the wired cable
  • the switching data is forwarded to the destination multimode wireless base station via the wireless channel via a bypass bypass switch located in front of the wired transmission processing unit and a bypass switch internal to the multimode wireless subscriber station processing unit.
  • the present invention also provides a method for accessing a wireless user based on the multi-mode wireless system described above, including:
  • Each mode of wireless user signal is connected to the multimode wireless base station through a wireless channel;
  • the wireless user signals of the access modes are transmitted between the multi-mode wireless base station and the upper-level device of the multi-mode wireless base station through a wireless channel or a wired cable, and are processed by the multi-mode wireless base station in the multi-mode wireless base station.
  • the unit is passed to a wireless user of each mode or a multimode wireless subscriber station processing unit in a higher level device of the multimode wireless base station.
  • the processing of the wireless user signals of the modes is performed by the wireless channel to the multi-mode wireless base station, and the multi-mode wireless base station directly receives the wireless user signal, which specifically includes:
  • the wireless user accesses the corresponding mode multi-mode wireless base station processing unit in the multi-mode wireless base station through the corresponding mode, and the unit is connected
  • the incoming wireless subscriber signal is transmitted to the switching unit;
  • the wired transmission processing unit of the upper-level device of the multi-mode wireless base station transmits the wireless user signal to the wired transmission processing unit in the multi-mode wireless base station through a wired cable, and the unit transmits the received wireless user signal to the switching unit;
  • the multi-mode wireless subscriber station processing unit of the upper-level device of the multi-mode wireless base station transmits the wireless user signal to the multi-mode wireless base station processing unit in the multi-mode wireless base station through the wireless channel, and the unit transmits the received wireless user signal to the exchange unit.
  • the processing of the wireless user signal being transmitted between the multi-mode wireless base station and the upper-level device of the multi-mode wireless base station by using a wireless channel or a wired cable includes:
  • the switching unit exchanges the received wireless user signal back to the multimode wireless base station processing unit of the corresponding mode, and the unit transmits the wireless user signal to the wireless user of the corresponding mode through the wireless channel;
  • the switching unit exchanges the received wireless user signal back to the corresponding mode multi-mode wireless base station processing unit, and the unit transmits the wireless user signal to the corresponding mode in the upper-level device of the multi-mode wireless base station through the wireless channel Multimode wireless subscriber station processing unit;
  • the switching unit exchanges the received wireless user signal to the wired transmission processing unit, and the unit transmits the wireless user signal to the wired transmission processing unit in the upper-level device of the multi-mode wireless base station by using a wired cable;
  • the switching unit exchanges the received wireless user signal to the multimode wireless base station processing unit of the other mode, and the unit transmits the wireless user signal to the corresponding one of the upper level devices of the multimode wireless base station through the wireless channel Mode multimode wireless subscriber station processing unit;
  • the switching unit hands the received wireless subscriber signal to the multimode wireless base station processing unit of the other mode, the unit communicating the wireless subscriber signal to another wireless subscriber of another mode via a wireless channel.
  • the method further includes: receiving, by the multi-mode wireless base station, the wireless user signal by the upper-level device of the multi-mode wireless base station, specifically: the wired transmission processing unit of the multi-mode wireless base station transmitting the wireless user signal to the multi-mode wireless base station by using a wired cable. a wired transmission processing unit in the upper level device, the unit transmits the received wireless user signal to the handover processing unit;
  • the multi-mode wireless base station processing unit of the multi-mode wireless base station transmits the wireless user signal to the multi-mode wireless subscriber station processing unit in the upper-level device of the multi-mode wireless base station through the wireless channel, and the unit transmits the received wireless user signal to the handover. Processing unit.
  • the processing after the switching processing unit receives the wireless user signal specifically includes:
  • the switching processing unit switches the received wireless user signal to a wired transmission processing unit, and the unit transmits the wireless user signal to a wired transmission processing unit in the multimode wireless base station via a wired cable;
  • the switching processing unit switches the received wireless user signal back to the multimode wireless subscriber station processing unit of the corresponding mode, and the unit transmits the wireless subscriber signal to a corresponding mode multimode wireless in the multimode wireless base station through a wireless channel Base station processing unit; and/or,
  • the switching processing unit switches the received wireless user signal to another mode of multi-mode wireless subscriber station processing unit, and the unit transmits the wireless subscriber signal to a corresponding mode multi-mode wireless in the multi-mode wireless base station through a wireless channel Base station processing unit.
  • multi-mode radio base stations are directly interconnected by a wired cable or a wireless channel, and fast cell switching can be performed between base stations, thereby shortening the handover delay.
  • the wired direct connection cable between the multi-mode wireless base stations can utilize the wired cable resources between the original multi-mode wireless base station and the wireless base station controller without re-laying.
  • the wired cable and the wireless channel between the multi-mode wireless base station and the upper-level device of the multi-mode wireless base station can be backed up each other, thereby supporting multiple
  • the cell switching mode supports different application environments and enhances transmission reliability.
  • the load sharing between the multi-mode wireless base station and the upper-level device of the multi-mode wireless base station through the wired wireless channel increases the bandwidth between the multi-mode wireless base station and the upper-level device of the multi-mode wireless base station, and solves the concentration of multiple wireless base stations. Converging bottlenecks in the wireless base station controller, thereby increasing the capacity of the communication system.
  • FIG. 1 is a schematic structural diagram of a single mode wireless system in the prior art
  • FIG. 2 is a schematic structural diagram of a specific implementation of the multimode wireless system according to the present invention.
  • FIG. 3 is a schematic structural diagram of a specific implementation manner of a wired common cell handover mode according to the present invention.
  • FIG. 4 is a schematic diagram of a specific real structure of a wired fast cell switching mode according to the present invention.
  • FIG. 5 is a schematic structural diagram of a specific implementation manner of a wireless normal cell handover mode according to the present invention.
  • FIG. 6 is a schematic structural diagram of a specific implementation of a wireless fast cell switching mode according to the present invention.
  • FIG. 7 is a schematic structural diagram of a specific implementation manner of a hybrid common cell handover mode according to the present invention.
  • FIG. 8 is a schematic structural diagram of a specific implementation manner of a hybrid fast cell switching mode according to the present invention.
  • FIG. 9 is a schematic structural diagram of a specific implementation of an alternative embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a specific implementation structure of an alternative embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a specific implementation of an alternative embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a specific implementation of an alternative embodiment of the present invention.
  • FIG. 13 is a schematic diagram of a specific implementation structure of an alternative embodiment of the present invention.
  • the present invention provides a multi-mode wireless system.
  • the core of the present invention is: Multi-mode wireless base stations are directly interconnected by wired cables or wireless channels, and support fast cell switching between multi-mode wireless base stations.
  • FIG. 2 The schematic diagram of the structure of the multimode wireless system of the present invention is shown in FIG. 2, which mainly includes a multi-mode wireless base station and a multi-mode wireless base station upper-level device (for example, multi-mode wireless Base station controller), wherein the multi-mode wireless base station controller represents a multi-mode wireless base station as an example, and the multi-mode wireless base station and the multi-mode wireless base station are controlled.
  • the functions of the controller are:
  • the multimode radio base station controller is configured to transmit a wireless user signal in a master/slave mode or a load sharing manner between a wireless channel or a wired cable and a multimode radio base station, and pass the source multimode radio base station
  • the switching data transmitted by the wireless channel or the wired cable is directly bypassed by the bypass switch to the destination multi-mode wireless base station or transmitted by the handover processing unit to the destination multi-mode wireless base station.
  • the multimode radio base station controller may specifically include a wired transmission processing unit, a bypass switch matrix, a handover processing unit, and a multimode wireless subscriber station processing unit.
  • the multi-mode wireless subscriber station processing unit is configured to: transmit, by using a wireless channel and a multi-mode wireless base station, a wireless user signal in an active/standby manner or a load sharing manner, and transmit the handover data transmitted by the source multi-mode wireless base station through the wireless channel.
  • the multimode wireless subscriber station processing unit consists of a bypass switch matrix and more than one processing unit.
  • the wired transmission processing unit is configured to: transmit the wireless user signal between the wired cable and the multi-mode wireless base station, and transmit the switching data transmitted by the source multi-mode wireless base station through the wired cable to the switching processing unit;
  • the bypass switch matrix is composed of a bypass switch located in front of the wired transmission processing unit and a bypass switch inside the multi-mode wireless subscriber station processing unit of the multi-mode wireless base station controller, and when the direct-through, the source multi-mode wireless
  • the cell handover data transmitted by the base station through the wired cable or the wireless channel is transmitted to the handover processing unit; when bypassing, the cell handover data transmitted by the source multimode radio base station through the wired cable or the wireless channel is directly bypassed Delivered to the destination multimode wireless base station;
  • the switching processing unit is configured to: switch or switch the wireless user signal between the multi-mode wireless subscriber station processing unit and the wired transmission processing unit to the multi-mode wireless subscriber station processing unit, the wired transmission processing unit itself, and the multi-mode wireless
  • the handover data transmitted by the subscriber station processing unit and the wired transmission processing unit is transferred to the destination multimode radio base station after the handover process.
  • the multi-mode wireless base station is configured to access wireless users of each mode, and perform local exchange on each mode wireless user signal in the same cell, through a wireless channel or a wired cable and a multi-mode wireless base station controller.
  • the wireless subscriber signal or the cell handover data is transmitted in an active/standby manner or a load sharing manner.
  • the multimode wireless base station includes: a multimode wireless base station processing unit, a wired transmission processing unit, and a switching unit.
  • the multi-mode wireless base station processing unit is configured to: access the wireless users of each mode, and transmit the wireless user signals in a master-slave manner or a load sharing manner between the wireless channel and the multi-mode wireless base station controller, and the source multi-mode wireless base station
  • the switching data is transmitted to the multimode radio base station controller through the wireless channel;
  • the wired transmission processing unit is configured to: transmit, by using a wired cable, a wireless user signal between the active/standby mode or the load sharing mode and the multimode wireless base station controller, and transmit the switching data of the source multimode wireless base station to the wired cable.
  • the multi-mode wireless base station controller wherein, the switching unit is configured to exchange or exchange the wireless user signal between the multi-mode wireless base station processing unit and the wired transmission processing unit to the multi-mode wireless base station processing unit and the wired transmission processing unit itself.
  • the multimode radio base station controller, the multimode radio base station controller and the multimode radio base station described above may have only a line connection, a wireless connection only, or both a wired and a wireless connection.
  • FIG 2 only the wireless processing units of the two modes (A mode and B mode) are drawn.
  • there may be multiple modes of wireless processing units for example, 802. 16-2004, 802.16e, WCDMA. (Wideband Code Division Multiple Access), CDMA2000 (a third generation wireless communication standard), TDSCDMA (a third generation wireless communication standard), GPRS (General Packet Radio Service), GSM (Global System for Mobile Communications) and other modes.
  • the same mode of wireless processing unit can be composed of multiple physical unit arrays.
  • Multimode wireless base station in Figure 2 The upper level device may be a radio base station controller, but is not limited to a radio base station controller.
  • the upper level device of the multimode radio base station may be a WiMAX Access Service Gateway (ASN GW).
  • ASN GW WiMAX Access Service Gateway
  • the multimode wireless base station and the multimode wireless base station controller in the multimode wireless system described above all support a plurality of methods for receiving wireless user signals, which are described as follows - the multimode wireless base station includes the following three types of receiving wireless user signals. -
  • the wireless user accesses the corresponding mode multi-mode wireless base station processing unit in the multi-mode wireless base station through the corresponding mode wireless access technology (for example, 802.16-2004 broadband fixed wireless access technology, referred to as 16d), the unit The accessed wireless subscriber signal is transmitted to the switching unit.
  • the corresponding mode wireless access technology for example, 802.16-2004 broadband fixed wireless access technology, referred to as 16d
  • the wired transmission processing unit of the multimode wireless base station controller transmits the wireless subscriber signal to the wired transmission processing unit in the multimode wireless base station via a wired cable, and the unit transmits the received wireless subscriber signal to the switching unit.
  • the multi-mode wireless subscriber station processing unit of the multi-mode wireless base station controller transmits the wireless user signal to the multi-mode wireless base station processing unit in the multi-mode wireless base station through the wireless channel, and the unit transmits the received wireless user signal to the switching unit.
  • the switching unit of the multi-mode wireless base station has the following processing procedures for the received wireless user signals:
  • the switching unit exchanges the received wireless user signal back to the multimode wireless base station processing unit of the corresponding mode, and the unit transmits the wireless user signal to the wireless user of the corresponding mode through the wireless channel;
  • the switching unit exchanges the received wireless user signal back to the multimode wireless base station processing unit of the corresponding mode, and the unit transmits the wireless user signal to the corresponding mode in the multimode wireless base station controller through the wireless channel.
  • Modular wireless subscriber station processing unit
  • the switching unit exchanges the received wireless user signal to the wired transmission processing unit, and the unit transmits the wireless user signal to the wired transmission processing unit in the multimode wireless base station controller through a wired cable;
  • the switching unit exchanges the received wireless user signal to the multimode wireless base station processing unit of the other mode, and the unit transmits the wireless user signal to a corresponding mode in the multimode wireless base station controller through a wireless channel.
  • Multimode wireless subscriber station processing unit
  • the switching unit exchanges the received wireless subscriber signal to the multimode wireless base station processing unit of the other mode, the unit transmitting the wireless subscriber signal to another wireless subscriber of another mode over the wireless channel.
  • the multimode radio base station controller includes the following two types of receiving wireless user signals -
  • a wired transmission processing unit of a multimode wireless base station transmits a wireless subscriber signal to a wired transmission processing unit in a multimode wireless base station controller via a wired cable, and the unit transmits the received wireless subscriber signal to the handover processing unit.
  • the multi-mode wireless base station processing unit of the multi-mode wireless base station transmits the wireless user signal to the multi-mode wireless subscriber station processing unit in the multi-mode wireless base station controller through the wireless channel, and the unit transmits the received wireless user signal to the handover processing. unit.
  • the switching processing unit of the multimode radio base station controller has the following three processing procedures for the received wireless user signal:
  • the switching processing unit switches the received wireless user signal to a wired transmission processing unit, and the unit transmits the wireless user signal to a wired transmission processing unit in the multimode wireless base station via a wired cable;
  • the handover processing unit switches the received wireless user signal back to the multimode wireless subscriber station processing unit of the corresponding mode, and the unit transmits the wireless subscriber signal to the corresponding mode in the multimode wireless base station through the wireless channel.
  • Modular radio base station processing list Yuan Yuan.
  • the handover processing unit switches the received wireless user signal to another mode multi-mode wireless subscriber station processing unit, and the unit transmits the wireless subscriber signal to a corresponding mode in the multi-mode wireless base station through the wireless channel.
  • Modular radio base station processing unit Modular radio base station processing unit.
  • the switching processing unit is interconnected with a wired transmission processing unit, an A-mode wireless processing unit, a B-mode wireless processing unit, and the like, respectively.
  • a bypass switch is provided before the wired transmission processing unit in the multimode wireless base station controller, that is, at the entrance of the wired port connecting each multimode wireless base station; the A mode wireless user in the multimode wireless base station controller A bypass switch is also provided inside the station processing unit and the B-mode wireless subscriber station processing unit; these bypass switches form a bypass switch matrix.
  • a mode wireless processing unit may be composed of a series of processing modules and a bypass switch. As shown in FIG.
  • the B-mode wireless subscriber station processing unit is configured by a B-mode processing module 1 (for example, may be a B-mode physical layer processing module).
  • the B-mode processing module 2 (for example, may be a protocol processing module above the B-mode physical layer) and a bypass switch.
  • the multimode wireless system shown in FIG. 2 supports six cell switching modes, namely, a wired normal cell switching mode, a wired fast cell switching mode, a wireless normal cell switching mode, a wireless fast cell switching mode, a hybrid normal cell switching mode, and a hybrid fast. Cell switching mode.
  • the switching mode of the wired common cell The schematic diagram of the specific implementation structure is shown in Figure 3.
  • the bypass switch is directly connected, and the switching data of the source multimode radio base station is transmitted to the multimode radio base station controller through the wired cable.
  • the wired transmission processing unit is further transmitted to the handover processing unit in the multimode radio base station controller, and after the handover processing unit switching processing, the handover data is forwarded to the wired transmission processing unit in the multimode radio base station controller via the wired cable.
  • Purpose Multimode wireless base station The schematic diagram of the specific implementation structure is shown in Figure 3.
  • Wireless common cell switching mode The schematic diagram of the specific implementation structure is shown in FIG. 5.
  • the bypass switch is directly connected, and the switching data of the source multi-mode wireless base station is sent to the multi-mode wireless base station controller through the wireless channel.
  • a multi-mode wireless subscriber station processing unit the multi-mode wireless subscriber station processing unit in the multi-mode wireless base station controller transmits the handover data to the handover processing unit, and after the handover processing unit handover process, the handover data passes through the multi-mode wireless base station
  • the multimode wireless subscriber station processing unit in the controller forwards to the destination multimode wireless base station via the wireless channel.
  • FIG. 6 The schematic diagram is shown in Figure 6.
  • the bypass switch bypasses, and the switching data of the source multi-mode wireless base station is sent to the multi-mode in the multi-mode wireless base station controller through the wireless channel.
  • the wireless subscriber station processing unit, the multimode wireless subscriber station processing unit in the multimode wireless base station controller directly forwards the handover data to the destination multimode wireless base station via the wireless channel through its internal bypass bypass switch.
  • Hybrid general cell handover mode The schematic diagram of its specific implementation structure is shown in Figure 7.
  • the bypass switch is directly connected, and the switching of the seed source multi-mode radio base station (source base station 1, ie multi-mode radio base station 1)
  • the data is sent to the multimode radio base station processing unit in the multimode radio base station controller through the wireless channel, and the multimode radio subscriber station processing unit in the multimode radio base station controller transmits the received handover data to the handover processing unit, and performs the handover.
  • the switching data is controlled by the multimode radio base station
  • the wired transmission processing unit in the device is forwarded to the destination multimode wireless base station via a wired cable.
  • the switching data of the source multimode radio base station (the source base station 3, that is, the multimode radio base station 3) is transmitted to the wired transmission processing unit in the same multimode radio base station controller through the wired cable, the multimode
  • the wired transmission processing unit in the radio base station controller transmits the received handover data to the handover processing unit, and after the handover processing unit handover processing, the handover data passes through the multimode wireless subscriber station processing unit in the multimode radio base station controller.
  • the wireless channel is forwarded to the destination multimode wireless base station.
  • Hybrid fast cell switching mode The specific implementation structure diagram is shown in Figure 8.
  • the bypass switch bypasses, and a source multi-mode radio base station (source base station 1, ie multi-mode radio base station 1)
  • the switching data is sent to the multi-mode wireless subscriber station processing unit in the multi-mode radio base station controller through the wireless channel, and the multi-mode wireless subscriber station processing unit in the multi-mode radio base station controller passes through the bypass of the internal bypass
  • the bypass bypass switch located before the wired transmission processing unit directly forwards the switching data to the destination multi-mode wireless base station via the wired cable.
  • the switching data of the source multimode radio base station (the source base station 3, that is, the multimode radio base station 3) is transmitted to the wired transmission processing unit in the same multimode radio base station controller through the wired cable, and the multimode radio base station
  • the controller transmits the switching data through the wired cable through the bypass bypass switch located in front of the wired transmission processing unit and the bypass switch of the internal bypass of the multi-mode wireless subscriber station processing unit, and the switching data is wirelessly
  • the channel is forwarded to the destination multimode radio base station.
  • the B mode can be mainly used as a wireless user access mode (for example, 802.16e broadband mobile wireless access mode), and the A mode is used as a wireless base station backhaul (That is, the wireless base station data is transmitted to the multimode wireless base station controller) mode. That is, most of the B-mode wireless channel bandwidth is allocated to the B-mode wireless user access, and only a small portion of the B-mode wireless channel bandwidth can be allocated as the backup channel of the wireless base station backhaul for emergency use; and the A-mode wireless channel bandwidth is mainly allocated as the wireless base station. For the backhaul, only a small portion of the A-mode wireless channel bandwidth can be allocated for A-mode wireless user access.
  • a wireless user access mode for example, 802.16e broadband mobile wireless access mode
  • the A mode is used as a wireless base station backhaul (That is, the wireless base station data is transmitted to the multimode wireless base station controller) mode. That is, most of the B-mode wireless channel bandwidth is allocated to the B-mode wireless user access, and only
  • the comparison of the six cell switching modes described above is shown in Table 1.
  • the wired channel in the table refers to the wired connection between the base station and the multimode wireless base station controller.
  • Wired normal mode When the A mode channel fault is eliminated, the wired common base station backhaul is ready for wireless user connection.
  • Base station backhaul small large flow rate can be switched through the matrix or fault
  • Base station 1 wired backhaul fault hybrid fast-path fault; base station in, base station 2 B
  • Base station 1 wired backhaul failure mixed ordinary base station 1 wired back wireless user connection
  • Base station backhaul, medium and medium traffic, the system is a wired normal fault.
  • Mode wireless fast base stations 1 and 2 have base station backhaul base station interworking, larger size traffic base stations 1 and 2 wired backhaul Line backhaul failure The wireless user is connected to the fault before the system is wired into the fast mode.
  • Base station 1 and 2 wired backhaul wireless pass-through base stations 1 and 2 have wireless user access
  • the multi-mode wireless system shown in FIG. 2 can be simplified according to the needs, and various alternatives for implementing the above embodiments of the present invention can be obtained, for example, specifically including the following various Alternatives -
  • a schematic diagram of a specific implementation structure of an alternative provided by the present invention is shown in FIG.
  • the multimode wireless base stations are directly connected by a wired cable, and the multimode wireless base station and the multimode wireless base station controller are connected without a wired cable, and are connected to the B mode wireless channel through the A mode.
  • This solution supports wired fast switching mode, wireless fast switching mode, wireless normal switching mode, and mixed normal switching mode.
  • FIG. 1 A schematic diagram of a specific implementation structure of another alternative of the present invention is shown in FIG.
  • the B-mode radio processing unit only accesses the B-mode wireless subscriber and is not used as a backhaul for the radio base station.
  • FIG. 1 A schematic diagram of a specific implementation structure of another alternative of the present invention is shown in FIG.
  • the multimode wireless base stations are directly connected by a wired cable, and the multimode wireless base station and the multimode wireless base station controller are connected without a wired cable, and are connected by an A mode wireless channel. Only wired fast switching mode and wireless normal switching mode are supported. If the cell handover data and the base station backhaul are time division multiplexed, and the multimode radio base station controller can know in advance the time slot in which the cell handover data is located, the wireless fast handover mode can also be supported.
  • FIG. 1 A schematic diagram of a specific implementation structure of another alternative of the present invention is shown in FIG.
  • the multimode radio base station and the multimode radio base station controller are connected without a wired cable, and are connected by the A mode radio channel for the base station backhaul.
  • This solution supports the wireless normal switching mode. If the cell handover data and the base station backhaul are time-multiplexed, and the multi-mode radio base station controller can know in advance the time slot in which the cell handover data is located, the scheme can also support the wireless fast handover mode.
  • FIG. 1 A schematic diagram of a specific implementation structure of another alternative of the present invention is shown in FIG.
  • the multimode wireless base station and the multimode wireless base station controller are connected by a wired cable only for base station backhaul.
  • the A-mode wireless processing unit only accesses the A-mode wireless user
  • the B-mode wireless processing unit only accesses the B-mode wireless user.
  • This solution supports the wired normal switching mode. If the cell handover data and the base station backhaul are time division multiplexed, and the multimode radio base station controller can know in advance the time slot in which the cell handover data is located, the scheme can also support the wired fast handover mode.

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

Abstract

L’invention concerne un dispositif station de base sans fil multimode et de niveau supérieur, un système sans fil multimode, un procédé de transfert et un procédé d’accès, ledit système comprenant principalement : dispositif de niveau supérieur station de base sans fil multimode, utilisé pour livrer un signal d’abonné sans fil entre un moyen dans la base-en attente de station de base sans fil multimode ou un moyen de partage de charge par canal sans fil ou ligne câblée, et la livraison des données de transfert transportées à partir de la station de base sans fil multimode par canal sans fil ou ligne câblée à la station de base sans fil multimode objet par contournement direct via le commutateur de contournement, ou à la station de base sans fil multimode objet par un procédé de transfert via l’unité de traitement de transfert ; station de base sans fil multimode, utilisée pour accéder à chacun des abonnés sans fil multimode, commuter localement chacun des signaux d’abonné sans fil multimode dans la même cellule, et livrer le signal d’abonné sans fil ou les données de transfert de cellule entre un moyen dans la base-en attente du dispositif de niveau supérieur base station sans fil multimode (par exemple contrôleur de station de base sans fil multimode) ou un moyen de partage de charge par canal sans fil ou ligne câblée. La présente invention permet donc de réaliser un transfert rapide de cellule entre stations de base et de diminuer le délai de transfert de cellule.
PCT/CN2006/001890 2005-07-29 2006-07-28 Dispositif station de base sans fil multimode et de niveau supérieur, système sans fil multimode, procédé de transfert et procédé d’accès WO2007012284A1 (fr)

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