CN100515138C - Transmission control method for wireless network and base station - Google Patents

Transmission control method for wireless network and base station Download PDF

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Publication number
CN100515138C
CN100515138C CNB200710038820XA CN200710038820A CN100515138C CN 100515138 C CN100515138 C CN 100515138C CN B200710038820X A CNB200710038820X A CN B200710038820XA CN 200710038820 A CN200710038820 A CN 200710038820A CN 100515138 C CN100515138 C CN 100515138C
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iub interface
processing unit
interface processing
base station
cable
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CN101035325A (en
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孟令健
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Super fusion Digital Technology Co.,Ltd.
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Shanghai Huawei Technologies Co Ltd
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Abstract

The present invention relates to the field of wireless communications, and discloses a method of controlling wireless networks and base station transmission. The probability for base station quit service is reduced. Reliability of the base station is strengthened. In the invention, the base station will at least has two Iub interface processing unit through the same cable with RNC. Type of the cable is Y. The base station side in the cable connector is divided into a number of bifurcations, and Iub interface is connected with the processing units. With furcate cable conjoint, Iub mouthpiece processing unit and Iub interface processing unit send out upload data toward the RNC. At least there is one Iub interface processing unit receiving download data from RNC. In furcate cable conjoint. Loop connection signal wire is contained in it. It indicates the joint corresponding Iub interface processing unit and every other Iub mouthpiece processing unit attaching through the identity cable with RNC.

Description

The transfer control method of wireless network and base station
Technical field
The present invention relates to wireless communication field, particularly the Iub interface data backup technology of base station in the wireless network.
Background technology
Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access is called for short " WCDMA ") is universal day by day as a representative technology of 3G (Third Generation) Moblie (The Third Generation is called for short " 3G ").The network side of WCDMA is divided into core net (Core Net, be called for short " CN ") and universal mobile telecommunications system grounding wireless access network (UMTS Terrestrial RadioAccess Network, be called for short " UTRAN ") two parts, wherein UTRAN is made up of radio network controller (Radio Network Controller is called for short " RNC ") and base station.Interface between base station and the RNC is called Iub interface.
Along with the development of technology, the capacity of the little base station of WCDMA is more and more higher, and integrated level is also more and more higher.Typical little base station is a no back board system, usually several subsystems such as Iub interface processing unit, Base Band Unit, control and Operation and Maintenance Unit is integrated in the replaceable unit (hereinafter being called BBU) to realize, as shown in Figure 1.This framework is fairly simple, realize easily, but reliability is lower.In case certain processing unit (comprising in Iub interface processing unit, Base Band Unit and the operation and maintenance unit any) breaks down, and can cause whole base station to withdraw from service.But, realize that the redundancy backup of above-mentioned processing unit is relatively more difficult as a kind of no back board system.
In order to improve the reliability of base station, prior art is provided with two or more BBU in a base station, as shown in Figure 2.These BBU are interconnected, and one of them BBU uses BBU as main, and other BBU is as subordinate BBU.The master is connected with RNC by E1 cable/optical cable with BBU, connects by high-speed data cable/optical cable between each BBU.Control signaling and user data message through the Iub interface processing unit processes can be connected to each Base Band Unit by high speed interconnect cable/optical cable.
Though this framework can improve the capacity of base station, increased the disposal ability of base station, but because the restriction of E1 cable interface, have only main Iub interface processing unit to be connected in the base station with RNC with BBU, can't realize the redundancy backup of Iub interface processing unit, make the winner become the critical path of base station system with the Iub interface processing unit of BBU, in case main Iub interface processing unit with BBU breaks down, can cause whole base station to withdraw from service, the reliability of base station can't be guaranteed.
Summary of the invention
The technical problem underlying that embodiment of the present invention will solve provides the transfer control method of a kind of wireless network and base station, and the probability that makes the base station withdraw from service is minimized, and has improved the reliability of base station.
For solving the problems of the technologies described above, embodiments of the present invention provide a kind of wireless network, comprise at least one base station and at least one radio network controller (RNC), wherein at least one base station comprises at least two Iub interface processing units that are used to carry out the Iub interface data transmit-receive, comprise in the base station of at least two Iub interface processing units, at least two Iub interface processing units of at least one base station link to each other with a RNC by same cable, this cable is divided at least two branching cable joints in base station side, links to each other with the Iub interface processing unit respectively;
Wherein, at synchronization, in the Iub interface processing unit that is connected with branching cable joint, only there is an Iub interface processing unit to send upstream data to RNC, forbid that other Iub interface processing unit that connects sends upstream data to described RNC, an Iub interface processing unit that allows at least to be connected with branching cable joint is from the RNC downlink data receiving.
Embodiments of the present invention also provide a kind of transfer control method of base station, comprise following steps:
If at least two Iub interface processing units that detect in the base station link to each other with RNC by same cable, then allow one of them Iub interface processing unit to send upstream data to RNC, forbid that other Iub interface processing unit that this cable connects sends upstream data to RNC, an Iub interface processing unit downlink data receiving that allows this cable to connect at least;
Wherein the Iub interface processing unit is used to carry out the data transmit-receive of Iub interface.
Embodiment of the present invention compared with prior art, the main distinction and effect thereof are:
At least two Iub interface processing units in the base station are linked to each other with RNC by same cable, this cable is the Y type, be divided into a plurality of branching cable joints in base station side, link to each other with the Iub interface processing unit respectively, thereby under the prerequisite that does not increase transmission cost, a plurality of Iub interface processing units all can receive downlink data or the information from RNC, realize the redundancy backup of data and information, even Iub interface processing unit fault, can not cause that the base station withdraws from service yet, reduce the probability that service is withdrawed from the base station, improved the reliability of base station.
Description of drawings
Fig. 1 is the little architecture of base station schematic diagram of WCDMA network in the prior art;
Fig. 2 is the architecture of base station schematic diagram that comprises a plurality of BBU of prior art;
Fig. 3 is according to the BBU connection diagram in the wireless network of first embodiment of the invention;
Fig. 4 is according to branching cable joint schematic diagram in the wireless network of first embodiment of the invention;
Fig. 5 is the transfer control method flow chart according to the base station of four embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiments of the present invention are described in further detail below in conjunction with accompanying drawing.
First embodiment of the invention relates to a kind of wireless network, comprise at least one base station and at least one RNC, comprise at least two Iub interface processing units that are used to carry out the Iub interface data transmit-receive in one of them base station, at least two Iub interface processing units link to each other with a RNC by same cable in this base station, this cable is divided at least two branching cable joints in base station side, link to each other with the Iub interface processing unit respectively, make under the prerequisite that does not increase transmission cost, a plurality of Iub interface processing units all can receive downlink data or the information from RNC, realize the redundancy backup of data or information, even Iub interface processing unit fault, can not cause that the base station withdraws from service yet, reduce the probability that service is withdrawed from the base station, improved the reliability of base station.
Said base station can be global system for mobile communications (Global System forMobile communication in the present embodiment, be called for short " GSM ") network base station, code division multiple access (Code DivisionMultiple Access, be called for short " CDMA ") network base station, the little base station of WCDMA network, Long Term Evolution (Long Term Evolution, be called for short " LTE ") network base station, TD SDMA (Time Division Synchronous Code Division Multiple Access, be called for short " TD-SCDMA ") network base station, the CDMA2000 network base station, personal handyphone system (Personal Handyphone System, be called for short " PHS ") network base station, cluster (Trunk) network base station, AIE (Air Interface Evolution is called for short " AIE ") network base station or the like.
Be that example describes with the little base station in the WCDMA network below.This little base station is integrated in a BBU with Iub interface processing unit, the Base Band Unit that is used for carrying out Base-Band Processing, control and Operation and Maintenance Unit etc. and realizes.Specifically, this Iub interface processing unit is responsible for handling the Data Receiving and the sending function of Iub interface physical layer, link layer and transport layer, and the connection control function of base station transmits network layer.This control and the main control module of Operation and Maintenance Unit as BBU, plant maintenance and management, resource management and signaling process, exchanges data Single Component Management, the activestandby state of being responsible for BBU detects, activestandby state is arbitrated with switch management, realizes the data backup function of BBU.
This little base station comprises two BBU, and one is that the master uses BBU, and one is standby BBU.Though the medium and small base station of present embodiment comprises two BBU, the present invention is not limited to have only the situation of two BBU, also can be one or more BBU.For example, a kind of of a kind of present embodiment is deformed into, integrated main control unit, baseband processing unit in a BBU, and N coffret processing unit, coffret processing unit adopt the Y breakout cable to connect.
As shown in Figure 3, in base station side, the E1 cable that is connected with RNC is divided into two branching cable joints, links to each other with the Iub interface processing unit of two BBU respectively.Wherein, the master can send upstream data to RNC by this cable with the Iub interface processing unit among the BBU, be that up transmission enables, the Iub interface processing unit among the primary and backup BBU all can be by this cable from the RNC downlink data receiving, and promptly descending reception enables.This E1 cable also is used to carry control signaling, operation maintenance data of Iub interface etc.
Come user data between Backup Data, Base Band Unit and the Iub interface processing unit between transmitting control and Operation and Maintenance signaling, the active and standby BBU and the I/Q data between Base Band Unit and the RF processing unit by high-speed data cable/optical cable between the active and standby BBU.
Have active and standby holding wire to link to each other between control among the active and standby BBU and the Operation and Maintenance Unit, this active and standby holding wire is used to detect and control the active and standby state of using of BBU; In the system start-up stage, control and Operation and Maintenance Unit are determined the operating state (promptly the master uses or be standby) of this BBU according to active and standby holding wire.
In order to make the active and standby type of cable (E1 breakout cable or common E1 cable) that can distinguish its connection with BBU, and back normal transmission data can be connected with branching cable joint, present embodiment is on the basis of common E1 cable, in branching cable joint, increase by two pairs of holding wires, first secondary signal line (TxEa and TxEb) and the three or four holding wire (La and Lb), as shown in Figure 4.TxEa and TxEb interconnection with active and standby two branching cable joints that are connected with the Iub interface processing unit of BBU.Wherein, whether the Iub interface processing unit that TxEa is used to indicate this branching cable joint to connect can send upstream data, and promptly whether up transmission enables; Whether TxEb is used to detect other Iub interface processing unit that is connected can send upstream data., can control this little base station synchronization and have only an Iub interface processing unit can on common cable, send upstream data data wire by this, uplink can not take place disturb.
Such as, current master enables with the up transmission of the Iub interface processing unit of BBU, the TxEa signal of the branching cable joint of its connection is a high level, the TxEb of the branching cable joint that standby BBU connects links to each other with this TxEa, standby BBU can detect this high level, determine that the master enables with the current up transmission of the Iub interface processing unit of BBU, thereby the up transmission of the Iub interface processing unit of this BBU is set to forbid that corresponding TxEa signal is a low level.And then guarantee to have only the up transmission of Iub interface processing unit of a BBU to enable.
Under the situation that the active and standby holding wire between the active and standby BBU and high-speed data cable/optical cable all disconnect, promptly can't transmit under the situation of information between two BBU, these two BBU can be operated in the 1+1 cold backup operating state.The preferential less BBU of numbering that selects uses as main under this mode; Being in standby BBU needs to detect in real time the TxEb signal, becomes low level when detecting the TxEb signal, shows that the master forbids that with the up transmission of Iub interface processing unit of BBU this standby BBU enables the up transmission of its Iub interface processing unit.
Except TxEa and TxEb, above-mentioned branching cable joint also comprises La and Lb.La is connected with the Lb loopback, be used to indicate the Iub interface processing unit of this BBU to link to each other with branching cable joint, make little base station can whether loopback connects by these two holding wires, distinguish connected mode (if the not loopback connection of these two holding wires of this Iub processing unit (i.e. this BBU), show that then this Iub interface processing unit links to each other with common E1 cable, if loopback connects, show that then this Iub interface processing unit links to each other with the branching cable joint of present embodiment), thereby can dispose accordingly according to the Iub interface processing unit of detected connected mode to correspondence, thereby when embodiment of the present invention and prior art are compatible mutually, can not make a mistake, better compatible.
Except above-mentioned two pairs of holding wires, this branching cable joint also comprises Tx0~Txn, Rx0~Rxn, Gnd equisignal line, and its position and common E1 cable are identical.Therefore the Iub interface processing unit of the active and standby BBU of this little base station both can use branching cable joint to link to each other with RNC, realize the redundancy backup of Iub interface processing unit, also can be connected, make the mutual load sharing of each Iub interface processing unit with common E1 cable, compatible mutually with prior art.
The active and standby of the little base station of this WCDMA network also comprises the exchanges data unit with BBU, and the active and standby downlink data that will receive from RNC with the Iub interface processing unit outputs to corresponding exchanges data unit.When redundancy backup concerned each other with the Iub interface processing unit, the exchanges data unit duplicated this downlink data, sends to active and standby Base Band Unit with BBU respectively and carries out Base-Band Processing active and standby; When load sharing concern each other with the Iub interface processing unit, this exchanges data unit, sent to selected base station unit with this downlink data and carries out Base-Band Processing with one of selection the Base Band Unit of BBU from active and standby active and standby.By this exchanges data unit, make that being integrated in an Iub interface processing unit on the physical location logically separates with Base Band Unit, can be in identical or different working method (redundancy backup mode or load sharing mode) respectively.
Need to prove that the exchanges data unit can be integrated on each BBU, perhaps, exchanges data unit and BBU are separated, corresponding data crosspoint of Base Band Unit of several relations of redundancy backup each other or load sharing relation.No matter Iub interface processing unit and the Base Band Unit of each BBU are operated in any mode respectively, all can only have control and Operation and Maintenance Unit to be in the main operating state of using.
In addition, present embodiment is primarily aimed at the E1 cable and is illustrated, and in actual applications, also can be T1 cable, E3 cable, T3 cable etc.Can there be different titles each unit in the present embodiment at different base station, is the coffret plate in macro base station as the Iub interface processing unit, can also be called coffret processing unit or the like.Cable is divided into mode that a plurality of branching cable joints connect the Iub interface processing units also can be had a variety ofly, as splitting cable by substrate or distributing board, is connected to a plurality of Iub interface processing units.
Second embodiment of the invention relates to a kind of wireless network equally, roughly the same with first execution mode, its difference is, in the first embodiment, Iub interface processing unit and Base Band Unit are logically independent in this little base station of WCDMA network, can be in different working methods respectively, the Iub interface processing unit can be in redundancy backup mode, and Base Band Unit can be in redundancy backup mode or load sharing mode; And in the present embodiment, under the situation that the ability of the Base Band Unit of single little base station is enough satisfied the demand, " Iub interface processing unit+Base Band Unit " can be used as an independently processing unit, carry out redundancy backup.Receive downlink data from RNC as the Iub interface processing unit of active and standby BBU from same cable, directly the downlink data of receiving is sent to each self-corresponding Base Band Unit respectively carries out Base-Band Processing.In this mode, a plurality of Iub interface processing units can receive downlink data or the information from RNC equally, the redundancy backup of realizing Data Receiving and handling, even Iub interface processing unit or Base Band Unit on BBU break down, can not cause that the base station withdraws from service yet, reduce the probability that service is withdrawed from the base station, improved the reliability of base station.
Third embodiment of the invention relates to a kind of wireless network, roughly the same with first and second execution modes, its difference is, in the present embodiment, in advance the cable in the cable is divided at least two groups, every group working method is separate, can be the mode of redundancy backup or the mode of load sharing.As the cable in the cable is divided into two groups, one group of cable is divided into two branching cable joints in base station side, links to each other with the Iub interface processing unit of active and standby BBU respectively, promptly is in redundancy backup mode; Another group cable is in the load sharing mode.Like this, the Iub interface processing unit of two BBU that link to each other with branching cable joint both can be operated in the load sharing mode, also can be operated in the 1+1 backup mode.In addition, can manage this two groups of cables respectively, make it relatively independent,, can not make that also whole cable can't use, improve resource utilization even the interface of one group of cable breaks down.
Four embodiment of the invention relates to transfer control method in a kind of base station, as shown in Figure 5.Present embodiment is that example describes with the little base station of WCDMA network still, and this little base station comprises a main BBU of using and a standby BBU equally.
In step 510, little base station initiated after, each BBU at first detects the E1 type of cable of its connection, judges that this BBU links to each other with the E1 branching cable joint or links to each other with common E1 cable, and reports main with control and Operation and Maintenance Unit.
Specifically, each BBU can detect the cable that is connected with the Iub interface processing unit, if comprise the holding wire that a pair of loopback connects in the cable that connects, what represent then that this Iub interface processing unit connects is the E1 branching cable joint, on the contrary represent then that this Iub interface processing unit connects be common E1 cable or be not connected with cable.
In step 520, the master analyzes the E1 type of cable that each BBU reports with control and Operation and Maintenance Unit, and the binding data configuration file is determined the working method of the Iub interface processing unit of each BBU.
If two BBU all connect the E1 branching cable joint, and data configuration is correct, determine that then the Iub interface processing unit of the active and standby BBU of this little base station will be operated in the 1+1 backup mode, enter step 530.
If a BBU connects the E1 branching cable joint, another one BBU connects common E1 cable or does not connect the E1 cable, will report " the E1 line connects unusual ", and alarm produces.
If the E1 cable configurations of the configuration information of data configuration file and BBU does not match, then a kind of available working method is selected according to the E1 type of cable of reality use in the base station, sets up default maintenance channel, waits for user's intervention.
In step 530, the Iub interface processing unit of active and standby BBU is operated in the 1+1 backup mode, carries out transport network layer user face data initial back-up process and transport network layer user face data incremental backup process for active and standby with the Iub interface processing unit.
In step 540, the master is enabled with the up transmission of the Iub interface processing unit of BBU, allow it to send upstream data to RNC, the up transmission of the Iub interface processing unit of standby BBU is forbidden, thereby guarantee that synchronization has only an Iub interface processing unit to send data by the cable of common connection to RNC, avoid producing up transmission and disturb.
Specifically, under this 1+1 backup mode, lead the exchanges data unit of using with standby BBU and after startup, all be in state of activation.After the master went into operation with BBU, the up transmission of its Iub interface processing unit enabled, descending reception enables, and this Iub interface processing unit can send data to RNC also can receive data from RNC.After standby BBU went into operation, the descending reception of its Iub interface processing unit enabled, and up transmission forbids that this Iub interface processing unit can only receive data from RNC.
When needs carry out the transfer of data of terminal, by the resource management module in the base station according to the terminal link information set up, connect to main two-way backup for each terminal connects to set up respectively from Base Band Unit, be connected with standby two-way backup from Base Band Unit to standby Iub interface processing unit with the Iub interface processing unit.
This Base Band Unit connects the upstream data through Base-Band Processing that sends this terminal with the Iub interface processing unit to leading by leading with two-way backup, with the Iub interface processing unit this upstream data is sent to RNC by main.Optionally, this Base Band Unit can connect to the identical upstream data of standby Iub interface processing unit transmission by standby two-way backup simultaneously, thereby even main with Iub interface processing unit fault, does not also have loss of data.
This Base Band Unit connects the downlink data that receives this terminal from least one two-way backup, and this Base Band Unit can also can connect the downlink data that receives this terminal respectively from the two-way backup of active and standby usefulness only from main the connection with two-way backup receiving this downlink data.
Need to prove that under this 1+1 backup mode, whenever set up user and connect, the two-way backup that need set up simultaneously from a Base Band Unit to each Iub interface processing unit at inside of base station connects.
When the master uses Iub interface processing unit fault, enter step 550, initiate reversed process: this standby BBU switches to the master and uses BBU, and the up transmission of Iub interface processing unit of standby BBU enables, and the transmission of Base Band Unit is carried out change.If before the fault, this Base Band Unit only connects downlink data receiving from main with two-way backup, connect to two two-way backups of active and standby usefulness respectively and send upstream data, then after initiating reversed process, this Base Band Unit up direction is handled constant, and down direction switches to an other connection (original standby two-way backup connects) downlink data receiving.
In step 560, the Iub interface processing unit need recover and RNC between signalling path and maintenance channel, and control need the master after switching be verified process with Iub interface processing unit (being original standby Iub interface processing unit) initiation data consistency with Operation and Maintenance Unit.
Above-mentioned transmission control mode, under the prerequisite that does not increase transmission cost, make a plurality of Iub interface processing units all can receive downlink data or information from RNC, realize the redundancy backup of data or information, thereby when the master breaks down with the Iub interface processing unit, can initiate reversed process immediately, carry out the transmission and the reception of data by standby Iub interface processing unit, reduce the probability that service is withdrawed from the base station, improved the reliability of base station.
In sum, in embodiments of the present invention, at least two Iub interface processing units in the base station are linked to each other with RNC by same cable, this cable is the Y type, be divided into a plurality of branching cable joints in base station side, link to each other with the Iub interface processing unit respectively, thereby under the prerequisite that does not increase transmission cost, a plurality of Iub interface processing units all can receive downlink data or the information from RNC, an Iub interface processing unit fault realizes the redundancy backup of data and information, even can not cause that also the base station withdraws from service, reduce the probability that service is withdrawed from the base station, improved the reliability of base station.
In the Iub interface processing unit that links to each other with branching cable joint, an Iub interface processing unit sends upstream data to RNC, and at least one Iub interface processing unit is from the RNC downlink data receiving.Thereby when realizing redundancy backup, avoid a plurality of Iub interface processing units, produce signal and disturb simultaneously at the cable transmitting data.
Have at branching cable joint under two the situation, each branching cable joint comprises first holding wire and secondary signal line, first holding wire of two branching cable joints and the interconnection of secondary signal line; Current whether up the enabling of the Iub interface processing unit of indicating this bifurcated cable joint to connect by first holding wire, detect whether up enabling of Iub interface processing unit that another branching cable joint connects by second interface, thereby guarantee that synchronization has only an Iub interface processing unit can send upstream data on common cable.
Branching cable joint comprises the 3rd holding wire and the 4th holding wire, and the 3rd holding wire is connected with the 4th holding wire loopback, is used to indicate the Iub interface processing unit corresponding with this joint to link to each other with RNC by same cable with other Iub interface processing unit.By this to holding wire, make the base station can distinguish the type of cable of this Iub processing unit connection (if these two holding wires do not interconnect, show that then this Iub interface processing unit links to each other with common cable, if these two holding wire interconnection, show that then this Iub interface processing unit links to each other with the breakout cable that embodiment of the present invention proposes), thereby can dispose accordingly according to the Iub interface processing unit of the type of cable that connects to correspondence, make when technical scheme of the present invention and prior art coexistence, can not make a mistake, better compatible.
Each Iub interface processing unit is included in the replaceable unit, this replaceable unit also comprises an exchanges data unit that is used to carry out the Base Band Unit of Base-Band Processing and is used to carry out data forwarding, the downlink data that Iub interface processing unit in each replaceable unit will be received from RNC outputs to the exchanges data unit in this replacement unit; This exchanges data unit duplicates this downlink data, the Base Band Unit that sends to respectively in each replaceable unit of the relation of redundancy backup each other carries out Base-Band Processing, perhaps, select one in the Base Band Unit of this exchanges data unit from each replaceable unit of the relation of load sharing each other, this downlink data is sent to selected base station unit carry out Base-Band Processing.Make that being integrated in an Iub interface processing unit on the physical location logically separates with Base Band Unit, can be in identical or different working method (redundancy backup mode and load sharing mode).
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.

Claims (13)

1. wireless network, comprise at least one base station and at least one radio network controller (RNC), wherein at least one base station comprises at least two Iub interface processing units that are used to carry out the Iub interface data transmit-receive, it is characterized in that, in the described base station that comprises at least two Iub interface processing units, at least two Iub interface processing units of at least one base station link to each other with a described RNC by same cable, this cable is divided at least two branching cable joints in base station side, links to each other with described Iub interface processing unit respectively;
Wherein, at synchronization, in Iub interface processing unit that described branching cable joint is connected, only there is an Iub interface processing unit to send upstream data to RNC, forbid that other Iub interface processing unit that connects sends upstream data to described RNC, an Iub interface processing unit that allows at least to be connected with described branching cable joint is from described RNC downlink data receiving.
2. wireless network according to claim 1 is characterized in that, described branching cable joint has two, and each branching cable joint comprises first holding wire and secondary signal line, first holding wire of two branching cable joints and the interconnection of secondary signal line;
Whether the Iub interface processing unit that described first holding wire is used to indicate described branching cable joint to connect can send described upstream data, and whether described secondary signal line is used to detect the Iub interface processing unit that another branching cable joint connects can send described upstream data.
3. wireless network according to claim 1, it is characterized in that, each described branching cable joint comprises the 3rd holding wire and the 4th holding wire, the 3rd holding wire is connected with the 4th holding wire loopback, is used to indicate this Iub interface processing unit to link to each other with described RNC by same cable with other Iub interface processing unit.
4. wireless network according to claim 1, it is characterized in that, each Iub interface processing unit is included in the replaceable unit, and this replaceable unit also comprises an exchanges data unit that is used to carry out the Base Band Unit of Base-Band Processing and is used to carry out data forwarding;
The downlink data that Iub interface processing unit in described each replaceable unit will be received from described RNC outputs to the described exchanges data unit in this replacement unit;
Described exchanges data unit duplicates described downlink data, the described Base Band Unit that sends to respectively in each replaceable unit of the relation of redundancy backup each other carries out Base-Band Processing, perhaps, select one in the described Base Band Unit of described exchanges data unit from each replaceable unit of the relation of load sharing each other, described downlink data is sent to selected base station unit carry out Base-Band Processing.
5. wireless network according to claim 1 is characterized in that, the corresponding Base Band Unit that is used to carry out Base-Band Processing of each described Iub interface processing unit;
By the Iub interface processing unit of described same cable reception, the described downlink data of receiving is sent to corresponding described Base Band Unit carry out Base-Band Processing from the downlink data of RNC;
Described Iub interface processing unit is integrated in the replaceable unit with described corresponding Base Band Unit.
6. wireless network according to claim 1 is characterized in that the cable in the described cable is divided at least two groups, and wherein at least one group of cable is divided at least two branching cable joints in base station side, links to each other with described Iub interface processing unit respectively.
7. according to each described wireless network in the claim 1 to 6, it is characterized in that it is one of following that described base station comprises at least:
Global system for mobile communications network base station, CDMA network base station, microwave access global intercommunication network base station, wideband CDMA network base station, time-division synchronous CDMA network base station, code division multiple access standard 2000 network base stations, personal handyphone system network base station, cluster network base station, long-term evolving network base station, AIE network base station.
8. according to each described wireless network in the claim 1 to 6, it is characterized in that it is one of following that described cable comprises at least:
E1 cable, T1 cable, E3 cable, T3 cable.
9. the transfer control method of a base station is characterized in that, comprises following steps:
If at least two Iub interface processing units that detect in the base station link to each other with RNC by same cable, then allow one of them Iub interface processing unit to send upstream data to RNC, forbid that other Iub interface processing unit that this cable connects sends upstream data to described RNC, an Iub interface processing unit downlink data receiving that allows this cable to connect at least;
Wherein said Iub interface processing unit is used to carry out the data transmit-receive of Iub interface.
10. the transfer control method of base station according to claim 9 is characterized in that, carries out described detection in the following manner:
Detect the branching cable joint that is connected with described Iub interface processing unit, if comprise the holding wire that a pair of loopback connects in this branching cable joint, represent that then this Iub interface processing unit links to each other with described RNC by same cable with other Iub interface processing unit.
11. the transfer control method of base station according to claim 9 is characterized in that, if at least two Iub interface processing units that detect in the described base station link to each other with RNC by same cable, then also comprises following steps:
The terminal of carrying out transfer of data for needs connects between the Base Band Unit of this base station and described Iub interface processing unit, this Base Band Unit is used for the data of this terminal are carried out Base-Band Processing, and described connection comprises being connected between this Base Band Unit and the described Iub interface processing unit that is allowed to send upstream data at least;
Described Base Band Unit sends the upstream data through Base-Band Processing of this terminal by described connection to the Iub interface processing unit that is allowed to send upstream data of correspondence, and this Iub interface processing unit sends to RNC with described upstream data through Base-Band Processing.
12. the transfer control method of base station according to claim 11 is characterized in that,
The described downlink data that receives described terminal from this Iub interface processing unit that is connected with the Iub interface processing unit of described Base Band Unit by at least one.
13. transfer control method according to each described base station in the claim 9 to 12, it is characterized in that, if described permission sends the Iub interface processing unit of upstream data and breaks down, the described Iub interface processing unit that sends upstream data that is under an embargo in then described base station is set to allow to send upstream data.
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