CN100373974C - Method for building maintenance channel - Google Patents
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- CN100373974C CN100373974C CNB2004101025445A CN200410102544A CN100373974C CN 100373974 C CN100373974 C CN 100373974C CN B2004101025445 A CNB2004101025445 A CN B2004101025445A CN 200410102544 A CN200410102544 A CN 200410102544A CN 100373974 C CN100373974 C CN 100373974C
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Abstract
The present invention discloses a method for building maintenance channels, which is used for establishing maintenance channels based on an IPOA when a 2G network and a 3G network are used for transmission together. The problem that maintenance channels based on the IPOA can not be automatically established since the collocation situation of bottom layer links can not be effectively detected when the 3G network and the 2G network share transmission is solved. First of all, the present invention crosses and combines a transmission time slot of the 3G network and a transmission time slot of the 2G network, and then, a time slot used between a radio network controller (RNC) and a base station (Node B) of the 3G network is listened according to a combined time slot list; the Node B uses a bootstrap protocol (BOOTP) mode to establish the maintenance channels based on the IPOA via the listened time slot.
Description
Technical field
The present invention relates to the transmission channel of wireless network, relate in particular to a kind of method of setting up maintenance channel.
Background technology
Along with development of wireless communication devices, communication network becomes increasingly complex and is huge, and the maintainability of network is had higher requirement.3G (3rd Generation Mobile Communication, 3G (Third Generation) Moblie) the agreement regulation radio network controller (RNC) of network in Wideband Code Division Multiple Access (WCDMA) (WCDMA), CDMA 2000 (CDMA2000), time division multiplexing S-CDMA (TD-SCDMA) communication system and maintenance channel employing IPOA (the IP over ATM between base station (Node B), IP on the ATM) form, but and the mode of setting up of the maintenance channel between undefined RNC and the Node B.
In order in 3G network, to set up maintenance channel automatically based on IPOA, application number is 01136795.4, and name is called in the Chinese invention patent prospectus of " a kind of method for building up of the default maintenance channel based on the IPOA passage " discloses a kind of method of setting up automatically based on the maintenance channel of IPOA between Node B and RNC.This method is based on following prerequisite: the one, transmit based on ATM(Asynchronous Transfer Mode) between Node B and the RNC; The 2nd, set up physical connection between Node B and the RNC.
In the method, Node B adopts the physical link testing mechanism and the Bootstrap Protocol (BOOTP) of bottom when not detecting available IPOA passage, sets up the default maintenance channel based on IPOA automatically.Because having set up physical layer between Node B and the RNC is connected, this physical layer connects can be based on U NI (User-Network Interface, User Network Interface) mode or based on IMA (InverseMultiplexing on ATM, Inverse Multiplexing over ATM) mode.Which kind of mode Node B can be by what intercept that cell on the link judges employing, thereby obtains the physical link data of RNC configuration, so just can set up default permanent virtual connection (PVC); At this above default PVC, Node B initiates the BOOTP request with broadcast mode, by RNC system's centralized operation maintenance console is delivered in this request, the centralized operation maintenance console is given Node B assignment of the Internet protocol (IP) address, insert in the BOOTP respond packet, by RNC Node B is delivered in this BOOTP response, last Node B gets access to the IP address of distributing to it, create the IPOA passage according to this IP address and default PVC, thus the foundation of complete operation maintenance channel.The BOOTP request that Node B initiates in the said process comprises following content, and its concrete form as shown in Figure 1.
Package operation sign indicating number (op) is used to indicate BOOTP bag type;
Hardware address type (htype) is used to indicate hardware address type;
Hardware address length (hlen) is used to indicate hardware address length;
Hardware operation is provided with (hops), is used for indicating through the gateway number;
Handle sign (xid), be used for the coupling between BOOTP request and the BOOTP response;
Whether broadcast identification (flags) is used for the BOOTP request and broadcasts;
Disappear second (secs), be used to indicate since the client bootstrapping what seconds;
Client IP address (ciaddr) is used to indicate the IP address of client;
The IP address (yiaddr) of oneself is used to indicate the IP address of the client that server fills;
Server ip address (siaddr) is used to indicate the address of the server that server fills;
Gateway ip address (giaddr) is used for the gateway address of process;
Client's hardware address (chaddr) is used to indicate the hardware address of client;
Optional master server name (sname) is used for optional host name;
Boot files name (file) is used to indicate the filename that will load;
Optional manufacturer defined range (vend) is used for the self-defining territory of manufacturer.
Adopt aforesaid way can solve the problem that NodeB is set up maintenance channel automatically, but at present the base station of 3G network a lot of occasions need with 2G (2rd Generation Mobile Communication, second generation mobile communication) shared site, the base station of network, when 3G network base station and 2G network base station transmit altogether, because the distribution condition of E1/T1 time slot is unfixing, can not effectively detect the configuring condition of bottom link, therefore can't be when 3G network and 2G network transmit altogether automatically foundation based on the maintenance channel of IPOA.
A kind of mode commonly used when 3G network and 2G network share transmission link is burst ATM (FractionalATM) mode.This mode merges to the time slot of 2G network and the time slot of 3G network on the E1/T1, thereby realizes the transmission time slot of 3G network and 2G network sharing E 1/T1.A kind of Fractional of employing ATM mode of the prior art is set up the IPOA maintenance channel automatically when 3G network and 2G network transmit altogether method is: when 3G network and 2G network transmit altogether, use exhaustive one by one method to carry out the trial of configures physical port, carry out the foundation of maintenance channel according to the result who attempts.
32 time slots are arranged on the E1, and removing 0 time slot and 16 time slots is that system keeps, and other 30 time slots all might be configured to the time slot of Fractional ATM.Be the various compound modes that need to attempt 30 time slots in theory, still according to the situation of actual networking, we can choose most probable time slot compound mode.For example 15 time slots on the E1 are transmitted as the Iub between Node B and RNC, other 15 time slots are left the 2G network base station for and are used.The shared total C (30,15) of time slot of Node B plants possibility so.Since E1 have 30 can occupied time slot, the composite type which time slot 3G and 2G equipment take separately is a lot, therefore adopts the efficient of exhaustive one by one method very low.
Summary of the invention
The purpose of this invention is to provide a kind of method of setting up maintenance channel, set up maintenance channel when being used for 2G network and 3G network and transmitting altogether based on IPOA, this method can be intercepted the time slot into Node B configuration automatically, makes the maintenance channel that can set up fast and effectively between Node B and the RNC based on IPOA.
For achieving the above object, the present invention is by the following technical solutions:
A kind of method of setting up maintenance channel is set up the maintenance channel based on the Internet protocol IPOA on the asynchronous transfer mode when being used for 2G network and 3G network and transmitting altogether, the method comprising the steps of:
A, the transmission time slot of the transmission time slot of 3G network and 2G network is intersected merging;
B, 3G network base station node B intercept according to the time slot combination table and radio network controller (RNC) between employed time slot;
The time slot employing Bootstrap Protocol BOOTP mode that C, Node B utilization listens to is set up the maintenance channel based on IPOA.
Described step B specifically may further comprise the steps;
The time slot combination table that B1, Node B use according to actual networking is sent the BOOTP request to RNC successively and is attempted;
B2, Node B determine to transmit employed time slot between RNC and the Node B according to the response of the RNC that receives.
Described step B specifically may further comprise the steps:
B1, a time slot combination table that comprises all available single time slots is set, reserves the request of intercepting that single time slot is used to monitor Node B at the RNC end;
The time slot combination table that b2, Node B are provided with according to step b1 is sent the BOOTP request to RNC successively and is attempted, and intercepts out single time slot that RNC reserves;
B3, Node B send the BOOTP request by the single time slot that listens to RNC, set up interim IPOA maintenance channel;
B4, RNC reportedly give Node B by temporary IP OA maintenance channel with employed timeslot number.
Described step C specifically may further comprise the steps:
C1, Node B initiate the BOOTP request with broadcast mode, communicate that request to system's centralized operation maintenance console;
C2, system's centralized operation maintenance console send the response of distributing IP address to Node B;
C3, described Node B obtain the IP address of distributing to it from described response, create the IPOA passage according to IP address that obtains and the time slot that listens to, thereby finish the foundation of the maintenance channel between base station and the base station controller.
Behind the described step C, also comprise step:
D1, Node B regularly carry out the ping operation to RNC, and whether monitor the IPOA link has chain rupture;
If D2 has chain rupture, then utilize the time slot listen to rebulid maintenance channel based on IPOA.
Described steps A is intersected equipment or 2G network base station or 3G network base station by external time slot the transmission time slot of the transmission time slot of 3G network and 2G network is intersected merging.
Because the present invention has adopted above technical scheme, so have following beneficial effect:
Employed time slot between RNC and Node B when the present invention shares transmission by intercepting 3G network and 2G network, adopt the Bootstrap Protocol mode to set up maintenance channel by Node B based on IPOA, solved when 3G network and 2G network are shared transmission owing to can not effectively detect the configuring condition of bottom link, can't set up problem automatically based on the maintenance channel of IPOA; Behind the maintenance channel of successfully having set up based on IPOA, Node B regularly carries out ping operation to RNC, and the IPOA link is monitored, and makes IPOA link Rebuild Maintenance link automatically when chain rupture.
Description of drawings
Fig. 1 is the form schematic diagram of BOOTP request package;
Fig. 2 is the flow chart of the present invention's foundation based on the maintenance channel of IPOA;
Fig. 3 utilizes external time slot intersection equipment to finish the schematic diagram that time slot merges;
Fig. 4 utilizes the 3G network base station to finish the schematic diagram that time slot merges;
Fig. 5 utilizes the 2G network base station to finish the schematic diagram that time slot merges.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 2, the present invention at first merges the transmission time slot of 3G network and the transmission time slot of 2G network, intercept employed time slot between base station controller (RNC) and the base station (Node B) then, by the time slot that listens to, adopt Bootstrap Protocol (BOOTP) mode to set up maintenance channel based on IPOA by Node B.
As shown in Figure 3, the present invention need dispose an external time slot intersection equipment (DACS) at the uplink direction of 2G network base station (BTS) and 3G network base station (Node B), this external time slot intersection equipment merges to the E1/T1 time slot of 2G network and the E1/T1 time slot of 3G network on the E1/T1, thereby realizes the transmission time slot of 3G network and 2G network sharing E 1/T1.External time slot intersection equipment has 3 E1/T1 ports at least, a port that connects 3G, a port that connects 2G, the 3rd port for output.Intersect equipment by external time slot, can set E1/T1 time slot that 3G network takies in certain scope.
As Fig. 4, shown in Figure 5,2G network base station equipment or 3G network base station equipment can be finished time slot intersection pooling function equally.
Set up physical layer by E1/T1 between Node B and the RNC and be connected, physical connection is based on Fractional ATM mode, and Fractional ATM mode requires Node B and the separate employed E1/T1 time slot of configuration of RNC.When adopting this mode, if there is not data file, Node B can't listen to RNC and use which time slot.
Time slot intersection equipment can pass through Timeslot cross function, discrete time slot packed format is unified, reduce the time slot format combination, in actual networking, the number of Node B base station has hundreds and thousands of usually, and each Node B base station can utilize time slot intersection equipment that its shared E1/T1 time slot is set.For example BTS takies 1-15 the time slot of its input E1, and Node B also takies 1-15 the time slot of its input E1, then the E1 mouth that connects Node B can be configured to use the 17-31 time slot by time slot intersection equipment, can not cause time slot collision like this on output E1.
Time slot intersection equipment can pass through Timeslot cross function, discrete time slot packed format is unified, reduce the time slot format combination, after finishing the construction of the network planning and physical equipment, the mode that all Node B in the network is taken the E1 time slot is combined into a time slot combination table, by certain mode this time slot combination table is notified to all Node B.Node B by time slot combination table that actual networking is used just intercept can with the connecting of RNC, thereby quickened the process of setting up of maintenance link greatly.The time slot combination table is notified to the mode that all Node B can adopt the near-end data to download, also can adopts predefined mode before delivery is installed in Node B base station.
Illustrate the method that time slot combination table that Node B uses actual networking is intercepted below.
When carrying out the port snooping of Fractional ATM mode, if be to be connected by the physical layer that E1 sets up between Node B and the RNC, following table is that all Node B take the time slot combination table that the mode of E1 time slot is formed:
{0Xfffe,0x2FFFE,0x7FFE,0x6FFFE,0x3FFE,0xEFFFE,0x1FFE,0x1EFFFE,0xFFE,0x3EFFFE,0x7FE,0x7EFFFE,0x3FE,0xFEFFFE,0x1FEFFFE,0x3FEFFFE,0x7FEFFFE,0xFFEFFFE,0x1FFEFFFE,0x3FFEFFFE,0x7FFEFFFE,0xFFFEFFF?E,0x1FE,0xFE,0x7E,0x3E,0x1E,0xE,0x6,0x2};
Node B is fixed as 1~15 time slot according to the Fractional atm port of 15 time slots of above-mentioned time slot combination table elder generation's configuration, initiates BOOTP (Bootstrap Protocol) request with the forms of broadcasting to RNC then, attempts the response that whether can receive RNC.If it is unsuccessful, the Fractional atm port of 16 time slots of configuration, because 0 time slot and 16 time slots are system's reserved time slots, therefore the Fractional atm port of 16 time slots is fixed as the 1-15+17 time slot, start BOOTP then and attempt, attempt 30 kinds of slotted modes successively and promptly can intercept out RNC and used which time slot.In order to attempt most possible slotted mode earlier, it is as follows to attempt order:
15,16,14,17,13,18,12,19,11,20,10,21,9,22,23,24,25,26,27,28,29,30,8,7,6,5,4,3,2,1
Each hexadecimal number is used for representing that a kind of time slot intercepts mode in the time slot combination table, the time slot that " 1 " representative in its corresponding binary number will be intercepted, 0 time slot of the rightest low bit representation E1 of binary number.For example the binary number of 0xFFFE correspondence is 1,111 1,111 1,111 1110, and the time slot that expression need be intercepted is 1~15 time slot.The binary number of 0x2FFFE correspondence is the 1-15+17 time slot that E1 is intercepted in 0,010 1,111 1,111 1,111 1110 expression.
When carrying out the port snooping of Fractional ATM mode, if be to be connected by the physical layer that T1 sets up between Node B and the RNC, following table is that all Node B take the time slot combination table that the mode of T1 time slot is formed:
{0x7FFF,0xFFFF,0x3FFF,0x1FFFF,0x1FFF,0x3FFFF,0xFFF,0x7FFFF,0x7FF,0xFFFFF,0x3FF,0x1FFFFF,0x1FF,0x3FFFFF,0x7FFFFF,0xFFFFFF,0xFF,0x7F,0x3F,0x1F,0xF,0x7,0x3,0x1};
Node B is the Fractional atm port of 15 time slots of configuration earlier, is fixed as 0~14 time slot, initiates BOOTP (Bootstrap Protocol) request with the forms of broadcasting to RNC then, attempts the response that whether can receive RNC.If unsuccessful, the Fractional atm port of 16 time slots of configuration is fixed as the 0-15 time slot, starts BOOTP then and attempts, and attempts 24 kinds of slotted modes successively and promptly can intercept out RNC and used which time slot.In order to attempt most possible slotted mode earlier, it is as follows to attempt order:
15,16,14,17,13,18,12,19,11,20,10,21,9,22,23,24,8,7,6,5,4,3,2,1。
Each hexadecimal number is used for representing that a kind of time slot intercepts mode in the time slot combination table, the time slot that " 1 " representative in its corresponding binary number will be intercepted, 0 time slot of the rightest low bit representation T1 of binary number.For example the binary number of 0x7FFF correspondence is 0,111 1,111 1,111 1111, and the time slot that expression need be intercepted is 0~14 time slot.The binary number of 0xFFFF correspondence is 0~15 time slot that T1 is intercepted in 1,111 1,111 1,111 1111 expressions.
Transmit employed time slot by carrying out lub between the RNC that listens to and the Node B, initiate Bootstrap Protocol (BOOTP) request by Node B with broadcast mode, communicate that request to RNC, RNC delivers to the centralized operation maintenance console to this BOOTP request package, and guarantee that it is the request which Node B sends that the centralized operation maintenance console can be discerned this BOOTP request package, thereby give its distributing IP address.If therefore the centralized operation maintenance console is the outside at RNC, so just need Node B that the BOOTP request package is done some processing, the information that for example adds this base station of expression in the client hardware address of BOOTP request package can be discerned this BOOTP request package and from which Node B send to guarantee outside centralized operation maintenance console.The BOOTP response that will guarantee the response of centralized operation maintenance console in addition can be returned Node B side, thereby obtain the centralized operation maintenance console and give Node B IP address allocated, Node B creates the IPOA passage according to IP address that obtains and the time slot that listens to, thereby finishes the foundation based on the maintenance channel of IPOA between Node B and the RNC.
Carry out lub between RNC and the Node B and transmit the mode of employed time slot except intercepting out according to time slot packed format table by Node B, Node B can also use a special time slot packed format table, this combination comprises 30 available single time slots of E1, or available 24 single time slots of T1.This method only need be reserved the request of intercepting that a single time slot is used to monitor Node B in advance at the RNC end, maximum 30 trials of Node B process under the E1 mode just can listen to the time slot communication port with RNC, under the T1 mode through attempting just can listening to the time slot communication port with RNC for maximum 24 times, as long as can listen to single time slot port, Node B just can send the BOOTP request to RNC by the single time slot port that listens to, this request is sent to RNC, RNC delivers to the centralized operation maintenance console to this BOOTP request package, give Node B distributing IP address by the centralized operation maintenance console, Node B creates the IPOA passage according to the IP address that obtains on single time slot passage, thereby finishes the foundation based on the interim maintenance channel of IPOA between Node B and the RNC.RNC sends Node B to by time slot data and other configuration files that this temporary IP OA maintenance channel uses actual networking, Node B just can create formal IPOA passage according to time slot data and the configuration file received, thereby finishes the foundation based on the maintenance channel of IPOA between Node B and the RNC.
After successfully setting up the IPOA maintenance link, Node B regularly carries out the ping operation to RNC, and whether monitor the IPOA link has chain rupture.Ping operation is to check bag by send IP on the IPOA link, and checks that the response of whether receiving destination judges whether normal method of link.If chain rupture is arranged then directly utilize the Fractional ATM timeslot number listened to set up BOOTP and call out, need not carry out the trial of time slot format more again.
Below only the present invention will be described with preferred embodiment, and those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (8)
1. method of setting up maintenance channel is set up the maintenance channel based on the Internet protocol IPOA on the asynchronous transfer mode when being used for 2G network and 3G network and transmitting altogether, it is characterized in that the method comprising the steps of:
A, the transmission time slot of the transmission time slot of 3G network and 2G network is intersected merging;
B, 3G network base station node B intercept according to the time slot combination table and radio network controller (RNC) between employed time slot;
The time slot employing Bootstrap Protocol BOOTP mode that C, Node B utilization listens to is set up the maintenance channel based on IPOA.
2. a kind of method of setting up maintenance channel according to claim 1 is characterized in that described step B specifically may further comprise the steps:
The time slot combination table that B1, Node B use according to actual networking is sent the BOOTP request to RNC successively and is attempted;
B2, Node B determine to transmit employed time slot between RNC and the Node B according to the response of the RNC that receives.
3. a kind of method of setting up maintenance channel according to claim 1 is characterized in that described step B specifically may further comprise the steps:
B1, a time slot combination table that comprises all available single time slots is set, reserves the request of intercepting that single time slot is used to monitor Node B at the RNC end;
The time slot combination table that b2, Node B are provided with according to step b1 is sent the BOOTP request to RNC successively and is attempted, and intercepts out single time slot that RNC reserves;
B3, Node B send the BOOTP request by the single time slot that listens to RNC, set up interim IPOA maintenance channel;
B4, RNC reportedly give Node B by temporary IP OA maintenance channel with employed timeslot number.
4. a kind of method of setting up maintenance channel according to claim 1 is characterized in that described step C specifically may further comprise the steps:
C1, Node B initiate the BOOTP request with broadcast mode, communicate that request to system's centralized operation maintenance console;
C2, system's centralized operation maintenance console send the response of distributing IP address to Node B;
C3, described Node B obtain the IP address of distributing to it from described response, create the IPOA passage according to IP address that obtains and the time slot that listens to, thereby finish the foundation of the maintenance channel between base station and the base station controller.
5. a kind of method of setting up maintenance channel according to claim 1 is characterized in that, intersects equipment by external time slot in described steps A the transmission time slot of the transmission time slot of 3G network and 2G network is intersected merging.
6. a kind of method of setting up maintenance channel according to claim 1 is characterized in that, by the 2G network base station transmission time slot of the transmission time slot of 3G network and 2G network is intersected merging in described steps A.
7. a kind of method of setting up maintenance channel according to claim 1 is characterized in that, by the 3G network base station transmission time slot of the transmission time slot of 3G network and 2G network is intersected merging in described steps A.
8. a kind of method of setting up maintenance channel according to claim 1 is characterized in that, behind the described step C, also comprises step:
D1, Node B regularly carry out the ping operation to RNC, and whether monitor the IPOA link has chain rupture;
If D2 has chain rupture, then utilize the time slot listen to rebulid maintenance channel based on IPOA.
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WO2001024459A1 (en) * | 1999-09-27 | 2001-04-05 | Siemens Aktiengesellschaft | Method for transferring time-critical data by ip-protocol |
EP1143693A1 (en) * | 1999-11-11 | 2001-10-10 | Huawei Technologies Co., Ltd. | Implementing method for adding monetary value of mobile prepayment service in different locations |
CN1459941A (en) * | 2002-05-22 | 2003-12-03 | 华为技术有限公司 | Automatic set-up method of base station operation maintenance passage in third generation mobile communication system |
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WO2001024459A1 (en) * | 1999-09-27 | 2001-04-05 | Siemens Aktiengesellschaft | Method for transferring time-critical data by ip-protocol |
EP1143693A1 (en) * | 1999-11-11 | 2001-10-10 | Huawei Technologies Co., Ltd. | Implementing method for adding monetary value of mobile prepayment service in different locations |
CN1459941A (en) * | 2002-05-22 | 2003-12-03 | 华为技术有限公司 | Automatic set-up method of base station operation maintenance passage in third generation mobile communication system |
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