CN102196482A - Method and device for carrying out hot backup on services - Google Patents
Method and device for carrying out hot backup on services Download PDFInfo
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- CN102196482A CN102196482A CN201110183483XA CN201110183483A CN102196482A CN 102196482 A CN102196482 A CN 102196482A CN 201110183483X A CN201110183483X A CN 201110183483XA CN 201110183483 A CN201110183483 A CN 201110183483A CN 102196482 A CN102196482 A CN 102196482A
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Abstract
The invention discloses a method and a device for carrying out hot backup on services, by which the service hot backup under the condition of RRU (radio remote unit) annular connection is realized quickly and effectively, and the problem of service interruption caused by that the time delay for realizing the service hot backup is long in the prior art is solved. The method comprises the following steps that: after an RRU accesses to a BBU (building base band unit), the BBU establishes a channel, and calculates and allocates a first delay measurement value and a second delay measurement value, wherein the first delay measurement value refers to a value of time delay that the RRU accesses to the BBU from a first link, and the second delay measurement value refers to a value of time delay that the RRU accesses to the BBU from a second link; after carrying out parameter configuration and cell configuration on the RRU, the BBU carries out service interaction on the first link; when determining that the first link is at fault, the BBU enables an IQ (intelligent) configuration corresponding to the first link and enables an IQ configuration corresponding to the second link; and after the RRU switches a clock from the first link to the second link and configures the time delay value from the first delay measurement value to the second delay measurement value, the BBU continues to perform the service above with the RRU.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of method and device of professional Hot Spare.
Background technology
At present according to " the Ir interfacing of 2GHz TD-SCDMA digital mobile cellular telecommunication net---distributed base station requires " definition (hereinafter to be referred as " requirement of TD-S Ir interfacing "), at RRU (Radio Remote Unit, radio frequency remoto module) the link cold standby can only be realized in the annular connection flow process, chain circuit heat backup can not be realized; Be illustrated in figure 1 as the flow chart of the link cold standby of realizing in the prior art that the RRU annular connects, this flow process may further comprise the steps:
Step 101, RRU are linked on the BBU (Building Base band Unit, baseband processing unit) in the mode that broadcasting inserts.
Step 102, set up the passage between RRU and the BBU, and open heartbeat detection.
Time delay on the access direction of step 103, BBU measure R RU access BBU.
Step 104, BBU carry out parameter configuration to RRU, comprise antenna parameter configuration, the configuration of IQ data channel etc.
Step 105, BBU carry out cell configuration to RRU, and carry out service interaction with RRU.
When step 106, BBU determine link occurs fault according to heartbeat detection mechanism, empty the configuration of described RRU on this link.
When step 107, RRU detect link occurs fault at described BBU, empty self configuration parameter and the business between interruption and the BBU by reset mode.
Step 108, RRU switch clock, are linked into again on the described BBU from another link direction, to realize professional recovery.
From method flow shown in Figure 1 as can be known, it is to realize by initiate access process again on the port after the switching that RRU recovers professional method, this kind recovers professional mode, in the whole link recovery process of single-stage RRU, BBU detects link occurs fault needs 6～9 seconds, BBU/RRU empties configuration parameter needs about 5 seconds, RRU switches clock, port after switching is linked into the BBU again, reconfigure parameter and replied service needed about 1～2 second, therefore, the business recovery of realizing single-stage RRU in the prior art needs about 12～16 seconds, realize that the business recovery that the RRU annular connects then needs the longer time, therefore, according to the requirement of present TD-S Ir interfacing, can't real RRU annular connect the professional Hot Spare of link down.
At present, connect the professional Hot Spare of link down for realizing the RRU annular, the IR interfacing has been done certain improvement, improving the flow process that realizes the link traffic Hot Spare in the back can be referring to Fig. 2, and this flow process can comprise:
Step 201, RRU determine a link (the follow-up forward link that is called) to be linked on the BBU in the mode that broadcasting inserts at random.
Step 202, set up the passage between RRU and the BBU, and open heartbeat detection.
Step 203, BBU measure R RU are linked into first time delay of BBU on forward link.
Step 204, RRU are linked on the BBU in the mode that inserts with broadcasting on the reverse link.
Step 205, BBU measure R RU are linked into second time delay of BBU on reverse link.
Step 206, BBU carry out parameter configuration to described RRU, as antenna parameter configuration, the configuration of IQ data channel etc.
Step 207, BBU carry out cell configuration to RRU, and are engaged in mutual with RRU in the enterprising industry of forward link.
When step 208, BBU detect forward link and break down according to heartbeat detection mechanism, but and definite reverse link time spent, go to enable main mouthful of IQ configuration (being the IQ configuration of forward link correspondence), enable to be equipped with a mouthful IQ configuration (being the IQ configuration of reverse link correspondence).
When step 209, RRU detect link occurs fault at described BBU, but and definite reverse link time spent, clock is switched to reverse link from forward link.
Carry out the time delay value configuration between step 210, BBU and the RRU, proceed service interaction.
In the flow process shown in Figure 2, RRU is before carrying out service interaction with BBU in BBU control, not only need to carry out the access process of a forward link, also need to carry out the access process of a reverse link, before forward link breaks down, to get access to the latency measurement value of RRU reverse link.Scheme after the improvement is utilized the monitoring of FPGA to Ir physical layer control word, to optimize the fast detecting of link failure; And defined RRU handoff links direction in the recovery flow process after forward link breaks down, obtained the flow process of latency measurement value configuration again.According to the effect that reality realizes, the time of single-stage RRU link-recovery process mainly comprises following several sections:
1) the time T c of detection fiber link failure, Tc is generally the ms level;
2) RRU switches to the time T s of reverse link with clock from forward link, and Ts is generally the ms level;
3) RRU latency measurement configuration Tm, Tm is usually less than 1s, but owing to be subjected to the influence of BBU/RRU processor, Tm can reach 2s～3s at most.
To sum up three parts as can be known, adopt flow process to realize that single-stage RRU link-recovery needs the time of about T=Tc+Ts+Tm as Fig. 2, this T is generally 1～2s, therefore, for flow process as shown in Figure 1, can reduce the recovery time of single-stage RRU link to a certain extent, can realize the Hot Spare requirement; But adopt the scheme after improving, the multistage RRU in connecting for the RRU annular carries out the situation of link-recovery simultaneously, can not guarantee that RRU business at different levels are all unaffected.
Present TD-S Ir interfacing adopts link backup mode shown in Figure 1 in requiring, and on the one hand, link failure detection adopts the heartbeat mode to detect, and makes sense cycle very long; On the other hand, when RRU normally is linked among the BBU, BBU only calculates the latency measurement that RRU inserts direction, therefore, when RRU never shares the same light when mouthful being linked among the BBU once more, also need the latency measurement after BBU inserts again to RRU once more, therefore reduced the speed of handoff links to a certain extent.
Adopt link backup mode shown in Figure 2, though accelerated the speed of handoff links to a certain extent, but control flow more complicated, influenced RRU normal insert and link failure after the speed of business recovery, as: when RRU normally inserts BBU, RRU must be respectively inserts the flow process of BBU from forward link and reverse link, so that BBU calculates the latency measurement value on the both direction link; Also as, in the recovery process behind link failure, BBU still need be at time delay value of the new link configuration after the RRU handoff links, thereby increases the time delay of link-recovery; Therefore, adopt the mode of link traffic Hot Spare as shown in Figure 2, be directed to the multistage RRU that the RRU annular connects, the link-recovery time delay is longer, RRU business recovery duration on the back one-level handoff links direction is subjected to the influence of processing delay of previous stage RRU bigger, after the time delay accumulation, might cause the processing delay of what handoff links direction RRU of back to exceed the professional requirement that keeps, thereby cause service disconnection.Therefore, how to realize the professional Hot Spare under the RRU annular connection situation fast and effectively, then become the problem of comparatively paying close attention to.
Summary of the invention
Above-mentioned technical problem at the prior art existence, the embodiment of the invention provides a kind of method and device of professional Hot Spare, to realize the professional Hot Spare under the RRU annular connection situation fast and effectively, to overcome that the time delay that realizes professional Hot Spare in the prior art causes the problem of service disconnection than length.
A kind of method of professional Hot Spare comprises:
Baseband processing unit BBU sets up passage after radio frequency remoto module RRU inserts, calculate and dispose described RRU and be linked into the first latency measurement value and the second latency measurement value on the described BBU from first link and second link respectively;
BBU carries out described RRU after parameter configuration and the cell configuration, is engaged in mutual in the enterprising industry of described first link;
Described BBU goes to enable the IQ configuration of the first link correspondence when determining described first link occurs fault, enable the IQ configuration of the described second link correspondence;
Described BBU switches to clock on second link from first link with described RRU above-mentioned business: the RRU that continues on described second link after described RRU carries out following operation, and time delay value is configured to the second latency measurement value from the first latency measurement value.
A kind of method of professional Hot Spare comprises:
Radio frequency remoto module RRU is after being linked into baseband processing unit BBU, receive the first latency measurement value and the second latency measurement value and storage that described BBU sends, described first latency measurement value and the described second latency measurement value are respectively described RRU that described BBU calculates and are linked into time delay on the described BBU from first link and second link;
Described RRU carries out service interaction with described BBU on described first link after described BBU carries out parameter configuration and cell configuration for this RRU;
Described RRU switches to clock on second link from first link, and time delay value is configured to the second latency measurement value from the first latency measurement value when determining described first link occurs fault;
Described RRU after described BBU goes to enable the IQ configuration of the first link correspondence and enables the IQ configuration of the described second link correspondence, on described second link with the described BBU above-mentioned business that continues.
A kind of baseband processing unit BBU comprises:
Time-delay measuring unit is used for setting up passage after radio frequency remoto module RRU inserts, and calculates and disposes described RRU and be linked into the first latency measurement value and the second latency measurement value on the described BBU from first link and second link respectively;
The configuration interactive unit is used for described RRU is carried out after parameter configuration and the cell configuration, is engaged in mutual in the enterprising industry of described first link;
Switch unit is used for going to enable the IQ configuration of the first link correspondence when determining described first link occurs fault, enables the IQ configuration of the described second link correspondence, and starts the business recovery unit;
The business recovery unit, be used for after described RRU carries out following operation, starting described configuration interactive unit and on described second link, clock switched to second link from first link, and time delay value is configured to the second latency measurement value from the first latency measurement value with described RRU above-mentioned business: the RRU that continues.
A kind of radio frequency remoto module RRU comprises:
Access unit is used for being linked into baseband processing unit BBU;
Receiving element, be used to receive the first latency measurement value and the second latency measurement value and storage that described BBU sends, described first latency measurement value and the described second latency measurement value are respectively described RRU that described BBU calculates and are linked into time delay on the described BBU from first link and second link;
The service interaction unit is used for carrying out service interaction with described BBU on described first link after described BBU carries out parameter configuration and cell configuration for this RRU;
Switch unit is used for clock being switched on second link from first link, and time delay value being configured to the second latency measurement value from the first latency measurement value when determining described first link occurs fault, starts the business recovery unit;
The business recovery unit is used for after described BBU goes to enable the IQ configuration of the first link correspondence and enables the IQ configuration of the described second link correspondence, on described second link with the described BBU above-mentioned business that continues.
In the embodiment of the invention, BBU sets up passage after RRU inserts, and calculate described RRU and be linked into the first latency measurement value and the second latency measurement value on the described BBU from first link and second link, and BBU and RRU are engaged in mutual in the enterprising industry of first link; When follow-up first link occurs fault, BBU only need go the IQ that enables the IQ configuration of the first link correspondence and enable the second link correspondence to dispose the link switchover that can finish the BBU side, RRU only need switch to clock on second link from first link, and time delay value is configured to the link switchover that the second latency measurement value can be finished the RRU side from the first latency measurement value, thereby can realize the switching of both sides' link, and the aforementioned business that on second link, continues.Adopt technical solution of the present invention, owing to before first link occurs fault, obtained the first latency measurement value and the second latency measurement value, therefore the link switchover speed of RRU side is very fast, and the BBU side does not need again the time delay of RRU on second link to be measured, thereby has accelerated the link switchover speed of BBU side yet; And whether the bottom control word detection mode by programmable logic array FPGA detects first link and breaks down, detect for whether link break down according to heartbeat detection mechanism with respect to existing, improve the speed of fault detect largely, thereby further improved link switchover speed; Therefore adopt technical solution of the present invention, can reduce the time delay of link switchover largely, improve link switchover speed and validity, thereby realized professional fast and effectively Hot Spare.
Description of drawings
Fig. 1 is one of method flow diagram of realizing in the prior art professional Hot Spare;
Fig. 2 be realize in the prior art professional heat one's duty method flow diagram two;
Fig. 3 A is one of method flow diagram of realizing in the embodiment of the invention professional Hot Spare;
Fig. 3 B is the annexation figure of BBU in the instantiation of the present invention and RRU;
Fig. 3 C be realize in the embodiment of the invention professional Hot Spare method flow diagram two;
Fig. 4 is the signaling process figure that realizes professional Hot Spare in the embodiment of the invention;
Fig. 5 is the structural representation of BBU in the embodiment of the invention;
Fig. 6 is the structural representation of RRU in the embodiment of the invention.
Embodiment
Above-mentioned technical problem at the prior art existence, the embodiment of the invention provides a kind of method and device of professional Hot Spare, to realize the professional Hot Spare under the RRU annular connection situation fast and effectively, to overcome that the time delay that realizes professional Hot Spare in the prior art causes the problem of service disconnection than length.In the technical solution of the present invention, BBU sets up passage after RRU inserts, and calculate described RRU and be linked into the first latency measurement value and the second latency measurement value on the described BBU from first link and second link, and BBU and RRU are engaged in mutual in the enterprising industry of first link; When follow-up first link occurs fault, BBU only need go the IQ that enables the IQ configuration of the first link correspondence and enable the second link correspondence to dispose the link switchover that can finish the BBU side, RRU only need switch to clock on second link from first link, and time delay value is configured to the link switchover that the second latency measurement value can be finished the RRU side from the first latency measurement value, thereby can realize that both sides switch to the above-mentioned business that continues on second link; Adopt technical solution of the present invention, owing to before first link occurs fault, obtained the first latency measurement value and the second latency measurement value, therefore the link switchover speed of RRU side is very fast, and the BBU side does not need again the time delay of RRU on second link to be measured, thereby also accelerated the link switchover speed of BBU side, and whether the bottom control word detection mode by programmable logic array FPGA detects first link and breaks down, detect for whether link break down according to heartbeat detection mechanism with respect to existing, improve the speed of fault detect largely, thereby further improved link switchover speed; Therefore adopt technical solution of the present invention, can reduce the time delay of link switchover largely, improve link switchover speed and validity, thereby realized professional fast and effectively Hot Spare.
Below in conjunction with Figure of description technical solution of the present invention is described in detail.
Referring to Fig. 3 A, be one of method flow diagram of realizing professional Hot Spare in the embodiment of the invention, this method flow is based on the BBU side, and method comprises:
In the embodiment of the invention, parameter configuration can comprise antenna parameter configuration and the configuration of IQ data channel etc.
In the embodiment of the invention, whether BBU can pass through FPAG (Field Programmable Logic Array, programmable logic array) bottom control word detection mode and detect the optical fiber that current RRU carries out in the professional link (as first link) and break down.
Preferably, above-mentioned steps 303a also can may further comprise the steps: described BBU is when determining described first link occurs fault, the described first latency measurement value and the second latency measurement value are sent to described RRU, so that described RRU stores described first latency measurement value and the described second latency measurement value in this locality.
In the embodiment of the invention, first link can be the first light mouth from BBU, through arriving the link of the second light mouth of BBU after at least one RRU; Second link can be the second light mouth from described BBU, through arriving the link of the first light mouth of described BBU after described at least one RRU; Connect by optical fiber between any two adjacent R RU among described at least one RRU, the first light mouth of described BBU is connected with RRU by optical fiber respectively with the second light mouth.
Among the above-mentioned steps 301a, BBU calculates the first latency measurement value and the second latency measurement value of RRU correspondence, can be in the following ways:
Mode 1, following two parameters are defined as the first latency measurement value of RRU correspondence with value: in the first latency measurement value of the previous RRU of the above RRU of transmission direction of described first link, and the Optical Fiber Transmission time delay between described RRU and this previous RRU;
Mode 2, following two parameters are defined as the second latency measurement value of RRU correspondence with value: in the second latency measurement value of the previous RRU of the above RRU of transmission direction of described second link, and the Optical Fiber Transmission time delay between described RRU and this previous RRU.
For calculating the first latency measurement value of RRU and the mode of the second latency measurement value in the more detailed description technical solution of the present invention, be that example is described in detail with a specific embodiment below, shown in Fig. 3 B, BBU comprises light mouth 0 and light mouth 1, m RRU (use respectively RRU1, RRU2 ..., RRUm represents) form annular and connect, wherein: first link is the light mouth 0 from BBU, through arriving the link of the light mouth 1 of BBU after the described m RRU; Second link is opposite with described first link, is the light mouth 1 from BBU, through arriving the link of the light mouth 0 of BBU after m the RRU.Connect by optical fiber between any two adjacent RRU among this m RRU; The RRU1 that is positioned at head end in first link is connected with light mouth 0 by optical fiber, is positioned at terminal terminal RRUm and is connected with light mouth 1 by optical fiber; The RRUm that is positioned at head end in second link is connected with light mouth 1 by optical fiber, is positioned at terminal terminal RRU1 and is connected with light mouth 0 by optical fiber; BBU calculates that the optical fiber propagation delay time can obtain according to following formula (1) on first link and second link, and the first latency measurement value that BBU calculates each RRU can obtain according to following formula (2), and the second latency measurement value of calculating each RRU can obtain according to following formula (3):
In the formula (1), T
12(i) be the propagation delay time that connects the optical fiber of RRUi and RRU (i-1) in first link, T
34(i) be the propagation delay time that connects the optical fiber of RRUi and RRU (i-1) in second link, T
14(i) be the port one of RRU (i-1) and the delay inequality between the port 4; T
23(i) be the port 2 of RRUi and the delay inequality between the port 3.
T
0-RRU(i)=T
0-RRU(i-1)+T
12(i), i=1 wherein, 2,3...m, wherein, T
0-RRU(1)=T
12(1) formula (2);
In the formula (2), T
0-RRU(i) be in first link RRUi to the time delay (being the first latency measurement value of RRUi) of light mouth 0, T
0-RRU(i-1) be the time delay (be the first latency measurement value of RRU (i-1)) of RRU in first link (i-1), T to light mouth 0
12(i) be the propagation delay time that connects the optical fiber of RRUi and RRU (i-1) in first link.
T
1-RRU(i)=T
1-RRU(i+1)+T
34(i+1), i=1 wherein, 2,3...m-1, T
1-RRU(m)=T
34(m+1) formula (3)
In the formula (3), T
1-RRU(i) be the time delay (be the second latency measurement value of RRU (i)) of RRU (i) to light mouth 1, T
1-RRU(i+1) be the time delay (the second latency measurement value of RRU (i+1)) of RRU (i+1), T to light mouth 1
34(i+1) be the propagation delay time that connects the optical fiber of RRUi and RRU (i+1) in second link, T
34(m+1) be the propagation delay time that connects the optical fiber of RRUm and light mouth 1 in second link, T
1-RRU(m) be the time delay (be the second latency measurement value of RRUm) of RRUm to light mouth 1.
The embodiment of the invention also provides a kind of method of the professional Hot Spare shown in Fig. 3 C, and this method is described based on the RRU side.
Referring to 3C, be two of the method flow diagram of realizing professional Hot Spare in the embodiment of the invention, this method comprises:
In the embodiment of the invention, the mode that RRU can broadcast access is linked among the BBU.
Preferably, among the above-mentioned steps 304c, whether RRU determines that described first link occurs fault can be in the following ways: detect described first link by FPGA bottom control word detection mode and break down.
In the embodiment of the invention, described first link is the first light mouth from described BBU, through arriving the link of the second light mouth of described BBU after at least one RRU; Described second two-way is the second light mouth from described BBU, through arriving the link of the first light mouth of described BBU after described at least one RRU; Connect by optical fiber between any two adjacent R RU among described at least one RRU, the first light mouth of described BBU is connected with RRU by optical fiber respectively with the second light mouth.
The embodiment of the invention can also provide the method flow diagram of the professional Hot Spare of realization of an integral body, and this method flow is described from BBU side and RRU side both sides.
Referring to Fig. 4, in the embodiment of the invention, realize the signaling process figure of professional Hot Spare, comprising:
Step 401, RRU are linked among the BBU in the mode that broadcasting inserts.
Passage between step 402, BBU foundation and the RRU, and start heartbeat detection.
Step 403, BBU are calculated and configuration RRU is linked into the first latency measurement value and the second latency measurement value on this BBU from first link and second link respectively.
Step 404, BBU carry out parameter configuration to described RRU, and this parameter configuration can comprise antenna parameter configuration, the configuration of IQ data channel etc.
Step 405, BBU carry out cell configuration to described RRU, and carry out service interaction with described RRU on first link.
When whether step 406, BBU detect optical fiber in first link and break down by FPAG bottom control detection mode, the IQ configuration of going to enable the IQ configuration of the first link correspondence and enabling the second link correspondence.
When step 407, RRU detect first link occurs fault by FPAG bottom control detection mode, with clock from first link switchover to second link, and automatically time delay value is updated to the second latency measurement value from the first latency measurement value.
Step 408, BBU and the RRU aforementioned business that on second link, continues.
The embodiment of the invention also provides a kind of BBU, and the structure of this BBU comprises as shown in Figure 5:
Time-delay measuring unit 51 is used for setting up passage after RRU inserts, and calculates and disposes described RRU and be linked into the first latency measurement value and the second latency measurement value on the described BBU from first link and second link respectively.
Configuration interactive unit 52 is used for described RRU is carried out after parameter configuration and the cell configuration, is engaged in mutual in the enterprising industry of described first link.
Whether switch unit 53 can detect first link by FPGA bottom control word detection mode and break down.
Preferably, time-delay measuring unit 51 calculates the first latency measurement value and the second latency measurement value of RRU correspondence, can obtain in the following ways:
Following two parameters are defined as the first latency measurement value of RRU correspondence with value: in the first latency measurement value of the previous RRU of the above RRU of transmission direction of described first link, and the Optical Fiber Transmission time delay between described RRU and this previous RRU;
Following two parameters are defined as the second latency measurement value of RRU correspondence with value: in the second latency measurement value of the previous RRU of the above RRU of transmission direction of described second link, and the Optical Fiber Transmission time delay between described non-end end RRU and this previous RRU.
Preferably, time-delay measuring unit 51 is further used for, and the described first latency measurement value and the second latency measurement value that calculates sent to described RRU, so that described RRU stores described first latency measurement value and the described second latency measurement value in this locality.
The embodiment of the invention also provides a kind of RRU, and the structure of this RRU can be as shown in Figure 6.
Referring to Fig. 6, be the structural representation of RRU in the embodiment of the invention, this RRU comprises:
Receiving element 62, be used to receive the first latency measurement value and the second latency measurement value and storage that described BBU sends, described first latency measurement value and the described second latency measurement value are respectively described RRU that described BBU calculates and are linked into time delay on the described BBU from first link and second link;
Whether switch unit 64 is determined described first link occurs fault, specifically be used for: detect described first link by FPGA bottom control word detection mode and break down
In the embodiment of the invention, BBU sets up passage after RRU inserts, and calculate described RRU and be linked into the first latency measurement value and the second latency measurement value on the described BBU from first link and second link, and BBU and RRU are engaged in mutual in the enterprising industry of first link; When follow-up first link occurs fault, BBU only need go the IQ that enables the IQ configuration of the first link correspondence and enable the second link correspondence to dispose the link switchover that can finish the BBU side, RRU only need switch to clock on second link from first link, and time delay value is configured to the link switchover that the second latency measurement value can be finished the RRU side from the first latency measurement value, thereby can realize the switching of both sides' link, and the aforementioned business that on second link, continues.Adopt technical solution of the present invention, owing to before first link occurs fault, obtained the first latency measurement value and the second latency measurement value, therefore the link switchover speed of RRU side is very fast, and the BBU side does not need again the time delay of RRU on second link to be measured, thereby has accelerated the link switchover speed of BBU side yet; And whether the bottom control word detection mode by programmable logic array FPGA detects first link and breaks down, detect for whether link break down according to heartbeat detection mechanism with respect to existing, improve the speed of fault detect largely, thereby further improved link switchover speed; Therefore adopt technical solution of the present invention, can reduce the time delay of link switchover largely, improve link switchover speed and validity, thereby realized professional fast and effectively Hot Spare.
Obviously, 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 (15)
1. the method for a professional Hot Spare is characterized in that, comprising:
Baseband processing unit BBU sets up passage after radio frequency remoto module RRU inserts, calculate and dispose described RRU and be linked into the first latency measurement value and the second latency measurement value on the described BBU from first link and second link respectively;
BBU carries out described RRU after parameter configuration and the cell configuration, is engaged in mutual in the enterprising industry of described first link;
Described BBU goes to enable the IQ configuration of the first link correspondence when determining described first link occurs fault, enable the IQ configuration of the described second link correspondence;
Described BBU switches to clock on second link from first link with described RRU above-mentioned business: the RRU that continues on described second link after described RRU carries out following operation, and time delay value is configured to the second latency measurement value from the first latency measurement value.
2. whether the method for claim 1 is characterized in that, BBU determines that described first link occurs fault comprises: detect described first link by programmable logic array FPGA bottom control word detection mode and break down.
3. the method for claim 1 is characterized in that, also comprises:
Described BBU sends to described RRU with the described first latency measurement value and the second latency measurement value, so that described RRU stores described first latency measurement value and the described second latency measurement value in this locality when determining described first link occurs fault.
4. the method for claim 1 is characterized in that, described first link is the first light mouth from described BBU, through arriving the link of the second light mouth of described BBU after at least one RRU;
Described second link is the second light mouth from described BBU, through arriving the link of the first light mouth of described BBU after described at least one RRU;
Connect by optical fiber between any two adjacent R RU among described at least one RRU, the first light mouth of described BBU is connected with RRU by optical fiber respectively with the second light mouth.
5. method as claimed in claim 4 is characterized in that, BBU calculates RRU and is linked into the first latency measurement value on the described BBU from first link, comprising:
Following two parameters are defined as the first latency measurement value of RRU correspondence with value: in the first latency measurement value of the previous RRU of the above RRU of transmission direction of described first link, and the Optical Fiber Transmission time delay between described RRU and this previous RRU;
Described BBU calculates RRU and is linked into the first latency measurement value on the described BBU from first link, comprise: in the second latency measurement value of the previous RRU of the above RRU of transmission direction of described second link, and the Optical Fiber Transmission time delay between described RRU and this previous RRU.
6. the method for a professional Hot Spare is characterized in that, comprising:
Radio frequency remoto module RRU is after being linked into baseband processing unit BBU, receive the first latency measurement value and the second latency measurement value and storage that described BBU sends, described first latency measurement value and the described second latency measurement value are respectively described RRU that described BBU calculates and are linked into time delay on the described BBU from first link and second link;
Described RRU carries out service interaction with described BBU on described first link after described BBU carries out parameter configuration and cell configuration for this RRU;
Described RRU switches to clock on second link from first link, and time delay value is configured to the second latency measurement value from the first latency measurement value when determining described first link occurs fault;
Described RRU after described BBU goes to enable the IQ configuration of the first link correspondence and enables the IQ configuration of the described second link correspondence, on described second link with the described BBU above-mentioned business that continues.
7. whether method as claimed in claim 6 is characterized in that, RRU determines described first link occurs fault, comprising: detect described first link by programmable logic array FPGA bottom control word detection mode and break down.
8. method as claimed in claim 7 is characterized in that, described first link is the first light mouth from described BBU, through arriving the link of the second light mouth of described BBU after at least one RRU;
Described second two-way is the second light mouth from described BBU, through arriving the link of the first light mouth of described BBU after described at least one RRU;
Connect by optical fiber between any two adjacent R RU among described at least one RRU, the first light mouth of described BBU is connected with RRU by optical fiber respectively with the second light mouth.
9. a baseband processing unit BBU is characterized in that, comprising:
Time-delay measuring unit is used for setting up passage after radio frequency remoto module RRU inserts, and calculates and disposes described RRU and be linked into the first latency measurement value and the second latency measurement value on the described BBU from first link and second link respectively;
The configuration interactive unit is used for described RRU is carried out after parameter configuration and the cell configuration, is engaged in mutual in the enterprising industry of described first link;
Switch unit is used for going to enable the IQ configuration of the first link correspondence when determining described first link occurs fault, enables the IQ configuration of the described second link correspondence, and starts the business recovery unit;
The business recovery unit, be used for after described RRU carries out following operation, starting described configuration interactive unit and on described second link, clock switched to second link from first link, and time delay value is configured to the second latency measurement value from the first latency measurement value with described RRU above-mentioned business: the RRU that continues.
10. whether BBU as claimed in claim 9 is characterized in that, switch unit is determined described first link occurs fault, specifically is applied to: detect described first link by programmable logic array FPGA bottom control word detection mode and break down.
11. BBU as claimed in claim 9 is characterized in that: described first link is the first light mouth from described BBU, through arriving the link of the second light mouth of described BBU after at least one RRU;
Described second link is the second light mouth from described BBU, through arriving the link of the first light mouth of described BBU after described at least one RRU;
Connect by optical fiber between any two adjacent R RU among described at least one RRU, the first light mouth of described BBU is connected with RRU by optical fiber respectively with the second light mouth.
12. BBU as claimed in claim 11 is characterized in that, described time-delay measuring unit specifically is used for:
Following two parameters are defined as the first latency measurement value of described RRU correspondence with value: in the first latency measurement value of the previous RRU of the above RRU of transmission direction of described first link, and the Optical Fiber Transmission time delay between described RRU and this previous RRU;
Following two parameters are defined as the second latency measurement value of described RRU correspondence with value: in the second latency measurement value of the previous RRU of the above RRU of transmission direction of described second link, and the Optical Fiber Transmission time delay between described RRU and this previous RRU.
13. BBU as claimed in claim 9, it is characterized in that, described time-delay measuring unit is further used for, the described first latency measurement value and the second latency measurement value that calculate are sent to described RRU, so that described RRU stores described first latency measurement value and the described second latency measurement value in this locality.
14. a radio frequency remoto module RRU is characterized in that, comprising:
Access unit is used for being linked into baseband processing unit BBU;
Receiving element, be used to receive the first latency measurement value and the second latency measurement value and storage that described BBU sends, described first latency measurement value and the described second latency measurement value are respectively described RRU that described BBU calculates and are linked into time delay on the described BBU from first link and second link;
The service interaction unit is used for carrying out service interaction with described BBU on described first link after described BBU carries out parameter configuration and cell configuration for this RRU;
Switch unit is used for clock being switched on second link from first link, and time delay value being configured to the second latency measurement value from the first latency measurement value when determining described first link occurs fault, starts the business recovery unit;
The business recovery unit is used for after described BBU goes to enable the IQ configuration of the first link correspondence and enables the IQ configuration of the described second link correspondence, on described second link with the described BBU above-mentioned business that continues.
Whether 15. RRU as claimed in claim 14 is characterized in that, described switch unit is determined described first link occurs fault, specifically is used for: detect described first link by programmable logic array FPGA bottom control word detection mode and break down.
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