CN102395219B - Method, device and system for WLAN data transmission - Google Patents
Method, device and system for WLAN data transmission Download PDFInfo
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- CN102395219B CN102395219B CN201110349135.5A CN201110349135A CN102395219B CN 102395219 B CN102395219 B CN 102395219B CN 201110349135 A CN201110349135 A CN 201110349135A CN 102395219 B CN102395219 B CN 102395219B
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Abstract
The invention discloses a method, a device and a system for WLAN (Wireless Local Area network) data transmission, which relates to communication technology. The embodiment of the invention adopts the technical scheme that a WLAN access system and a base station device in a 3G network are arranged in a combined manner, and an AP (Access Point) and an AC (Access Controller) in the WLAN access system are connected through an Ir interface in the base station device, thus the WLAN data between the AP and the AC can be transmitted through the Ir interface, further, the construction cost of the WLAN is saved, and the reliability of the transmission between the AP and the AC is improved.
Description
Technical field
The present invention relates to the communication technology, relate in particular to a kind of WLAN data transmission method, Apparatus and system.
Background technology
At present, the laying of 3G network is comparative maturity, base station equipment in 3G network is generally distributed base station equipment, as shown in Figure 1, distributed base station equipment is a kind of base station combination of can flexible distributed formula installing, comprise: Base Band Unit equipment (Base Band Unit, BBU), RF remote equipment (Remote RF Unit, RRU), wherein RRU is by Ir(Interface between the RRU and the BBU, the interface of RRU and BBU) interface (being connected by a pair of optical fiber) is connected with BBU, BBU and RNC(Radio Network Controller, radio network controller) connect, the connection of BBU and RNC can be passed through PTN(Packet Transport Network, Packet Transport Network) network etc. is as transmission network.
WLAN(Wireless Local Area Network, WLAN (wireless local area network)) typically use fixed broadband as return network, the ubiquitous system framework of WLAN as shown in Figure 2, WLAN connecting system comprises WAP (wireless access point) (Access Point, AP), wireless control point (Access Controller, AC) and WLAN access point, wherein, between AP and AC, generally by fixed broadband, connect.
And the networking of WLAN investment is larger, the operation pressure of operator is significantly increased, and, owing to needing to connect by fixed broadband between AP and AC, for the fewer area of fixed broadband resource or operator, newly-built fixed broadband has increased WLAN construction cost.In addition, owing to transmitting by fixed broadband, be not that carrier class transmits, reliability is lower.
Summary of the invention
The embodiment of the present invention provides a kind of WLAN data transmission method, Apparatus and system, realizes by the Ir Interface realization AP in base station equipment and the WLAN transfer of data between AC.
A WLAN data transmission method, comprising:
Access point transfers to the Ir mapping/demapping module in Base Band Unit equipment B BU by WLAN (wireless local area network) WLAN data by Ir demapping/mapping block;
Described Ir mapping/demapping module is by WLAN transfer of data to routing device, and described routing device connects BBU, control point and radio network controller (RNC);
Described routing device routes to control point by described WLAN data.
A WLAN data transmission system, comprising: access point, Base Band Unit equipment B BU, routing device, control point and radio network controller (RNC), wherein:
Access point, for transferring to WLAN (wireless local area network) WLAN data the Ir mapping/demapping module of BBU by Ir demapping/mapping block;
BBU, for by described Ir mapping/demapping module by WLAN transfer of data to routing device, described routing device connects BBU, control point and RNC;
Routing device, for routing to control point by described WLAN data.
A WLAN data transmission device, comprising:
Access point module, for the treatment of WLAN (wireless local area network) WLAN data;
Ir demapping/mapping block, the WLAN data that send for receiving described access point module, and transfer to the Ir mapping/demapping module in Base Band Unit equipment B BU, by described BBU by shine upon/demapping of described Ir module by WLAN transfer of data to routing device, by described routing device, described WLAN data are routed to control point, described routing device connects BBU, control point and RNC.
A WLAN data transmission device, comprising:
At least one access point interface, for connecting access point;
Ir demapping/mapping block, the WLAN (wireless local area network) WLAN data that send by described access point interface for receiving described access point, and transfer to the Ir mapping/demapping module in Base Band Unit equipment B BU, by described BBU by shine upon/demapping of described Ir module by WLAN transfer of data to routing device, by described routing device, described WLAN data are routed to control point, described routing device connects BBU, control point and RNC.
The embodiment of the present invention provides a kind of WLAN data transmission method, Apparatus and system, by by the base station equipment in WLAN connecting system and 3G network in conjunction with setting, realize by the Ir interface in base station equipment and connect AP and the AC in WLAN connecting system, WLAN data between AP and AC can be transmitted by Ir interface, and then saved WLAN construction cost, and improve the transmission reliability between AP and AC.
Accompanying drawing explanation
Fig. 1 is 3G network architecture of base station schematic diagram in prior art;
Fig. 2 is wlan system structural representation in prior art;
The WLAN data transmission method flow chart that Fig. 3 provides for the embodiment of the present invention;
The WLAN data transmission system structural representation corresponding to embodiment mono-that Fig. 4 provides for the embodiment of the present invention;
Fig. 5 a is down link 3G data frame structure schematic diagram in prior art;
Fig. 5 b is up link 3G data frame structure schematic diagram in prior art;
Fig. 5 c transmits the transformat schematic diagram of C & M data in a group in prior art;
The WLAN data transmission system structural representation corresponding to embodiment bis-that Fig. 6 provides for the embodiment of the present invention;
The WLAN data transmission system structural representation corresponding to embodiment tri-that Fig. 7 provides for the embodiment of the present invention;
The WLAN data transmission system structural representation that Fig. 8 provides for the embodiment of the present invention;
One of WLAN data transmission device structural representation that Fig. 9 provides for the embodiment of the present invention;
Two of the WLAN data transmission device structural representation that Figure 10 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of WLAN data transmission method, Apparatus and system, by by the base station equipment in WLAN connecting system and 3G network in conjunction with setting, realize by the Ir interface in base station equipment and connect AP and the AC in WLAN connecting system, WLAN data between AP and AC can be transmitted by Ir interface, and then saved WLAN construction cost, and improve the transmission reliability between AP and AC.
Because the coverage of current 3G network is more extensive, so as long as at the place, base station of 3G network, can lay wlan network, AP equipment is arranged on to RRU side, AC equipment is connected with BBU, be convenient to the construction of wlan network.
Concrete, as shown in Figure 3, the WLAN data transmission method that the embodiment of the present invention provides comprises:
Step S301, access point transfer to the Ir mapping/demapping module in BBU by WLAN data by Ir demapping/mapping block;
Step S302, Ir mapping/demapping module are by WLAN transfer of data to routing device, and routing device connects BBU, control point and RNC;
Step S303, routing device route to control point by WLAN data.
By above-mentioned steps, the WLAN transfer of data of Ir Interface realization that can be by 3G network from AP to AC.
Same, when AC transmits data to AP, in this WLAN data transmission method, also comprise:
Step S304, routing device receive after the WLAN data of control point transmission, and by WLAN data retransmission, to BBU, routing device connects BBU, control point and RNC;
Ir mapping/demapping module in step S305, BBU by Ir demapping/mapping block by WLAN transfer of data to access point.
Wherein, AC is normally connected to BBU by routing device, and AP can divide and be arranged with RRU, also can merge and arrange with RRU.
According to the difference of the set-up mode of AP, by specific embodiment, the technical scheme of the embodiment of the present invention is elaborated below:
Embodiment mono-,
In this embodiment, RRU and AP merge and arrange, and in practical operation, can be considered as adding access point module in RRU, and in order to express easily, in the present embodiment, the device that RRU and AP are merged after arranging is called access point.
Now, the structure of this WLAN data transmission system of system as shown in Figure 4, access point 401 comprises access point module 4011, RRU module 4012 and Ir demapping/mapping block 4013, BBU402 comprises Ir mapping/demapping module 4021 and network interface 4022, BBU402 is by network interface 4022 connection route equipment 403, and routing device 403 also connects RNC404 and AC405.
In this embodiment, the data in BBU402 realize and extraneous transmission by network interface 4022, in actual applications, also can use the interface of other form, or make otherwise to realize BBU and extraneous transfer of data.
As shown in Figure 4, between BBU402 and routing device 403, can realize transfer of data by transmission network 406, while using this transmission network 406 can make routing device 403 and BBU402 distant, realize the transmission between routing device 403 and BBU402.This transmission network 406 can be used PTN(Packet Transport Network, Packet Transport Network), PON(Passive Optical Network, passive optical-fiber network) or E1(electrical interface speed standard) network etc.403 of routing devices can be used any equipment that can carry out route and data retransmission, for example, can use CE(Customer Edge, user network boundary device) equipment, gateway (GATEWAY) or PE(Provider Edge, Provider Edge) router.
Now, access point 401, need to be by Ir demapping/mapping block 4013, the Ir mapping/demapping module 4021 in BBU402 and network interface 4022, routing device 403 and transmission network 406 in access point 401 when to AC405 transmitting WLAN data.
The access point module 4011 that step S301 can be specially in access point 401 is sent to the Ir demapping/mapping block 4013 in access point 401 by WLAN data, and by Ir demapping/mapping block 4013 by WLAN transfer of data to the Ir mapping/demapping module 4021 in BBU402.
In step S305, Ir mapping/demapping module in BBU by Ir demapping/mapping block by WLAN transfer of data to access point, specifically comprise: the Ir mapping/demapping module 4021 in BBU402 by WLAN transfer of data to the Ir demapping/mapping block 4013 in access point 401; Ir demapping/mapping block 4013 is sent to access point module 4011 by WLAN data.
In this system, WLAN data and 3G network data can be transmitted respectively, but be further to improve data transmission efficiency, can be in transmitting WLAN data, by this system, continue transmission 3G network data, now, when RRU module 4012 sends 3G network data to RNC404, Ir demapping/mapping block 4013 in access point 401 also needs to receive the 3G network data that RRU module in access point 401 402 sends, and by shine upon/demapping of Ir module 4021 and routing device 403 by 3G network data retransmission to RNC404;
When RNC404 sends 3G network data to RRU module 4012, routing device 403 receives after the 3G network data of RNC404 transmission, by 3G network data retransmission to BBU402, BBU402 by shine upon/demapping of Ir module 4021 by 3G network transfer of data to the Ir demapping/mapping block 4013 in access point 401, by Ir demapping/mapping block 4013 by 3G network data retransmission to RRU module 4012.
In order to improve efficiency of transmission, WLAN data can be inserted in 3G network data and transmit, now, in step S301, access point transfers to the Ir mapping/demapping module in BBU by WLAN data by Ir demapping/mapping block, specifically comprises: access point sends to Ir demapping/mapping block by WLAN data; Ir demapping/mapping block inserts WLAN data in 3G network data and transfers to the Ir mapping/demapping module in BBU;
In step S305, Ir mapping/demapping module in BBU by Ir demapping/mapping block by WLAN transfer of data to access point, specifically comprise: the Ir mapping/demapping module in BBU will WLAN data transfer to Ir demapping/mapping block in insertion 3G network data; Ir demapping/mapping block by WLAN transfer of data to access point.
When WLAN data are inserted to 3G network data, WLAN data can be inserted in the idle component in 3G network Frame, as long as WLAN data can be identified and read out to receiving terminal from 3G network Frame.
A kind of method that the embodiment of the present invention provides WLAN data to insert, as shown in Fig. 5 a and Fig. 5 b, Fig. 5 a is the overall frame structure schematic diagram of the down link of 3G network Frame, Fig. 5 b is the overall frame structure schematic diagram of the up link of 3G network Frame, according to the Ir interfacing of the communication industry standard < < 2GHz TD-SCDMA of People's Republic of China (PRC) digital mobile cellular telecommunication net distributed base station, require the definition in > >, descending C & M(Control and management, control and management) data are at UPPTS(Uplink Pilot Time Slot uplink pilot time slot)+TS1(Time Slot1, time slot 1) slot transmission, shared times 125 μ s+675 μ s=800us=32 * 25 μ s, 32 super-group(super group).Up C & M data are in TS0+DWPTS slot transmission, and the shared time is 675 μ s+75 μ s=750 μ s=30 * 25 μ s, i.e. 30 super-group.
Each super-group comprises a plurality of group(groups), and the form that transmits C & M data in a group as shown in Figure 5 c, wherein first byte of first group is as synchronization character k28.5, second byte transmission SGN(super-group number, super group number), these two bytes are used horizontal line to fill in Fig. 5 c, six bytes of the 3rd byte to the at each group are used as transmission C & M data, which specifically by the byte in six bytes of the 3rd byte to the, transmit in operation, by control word, configured, six bytes of the 3rd byte to the are used oblique line to fill in Fig. 5 c, remaining byte in this group is that Reserved(retains) byte.
Due to for transmitting 32 super-group of descending C & M data and for transmitting 30 super-group of up C & M data, the remainder bytes of the 7th byte of each group for starting, agreement regulation is Reserved byte, and this part bandwidth is not used.So in embodiments of the present invention, WLAN data can be inserted in these bytes to transmission when realizing WLAN data and 3G network data.
Concrete, at the UPPTS+TS1 time slot of the descending C & M data of transmission with in the TS0+DWPTS time slot of the up C & M data of transmission, use the 7th remainder bytes that byte starts (being the Reserved byte shown in Fig. 5 c) of each group to transmit wlan network data.
Now, Ir demapping/mapping block inserts WLAN data in 3G network data and transfers to the Ir mapping/demapping module in BBU, specifically comprise: Ir demapping/mapping block inserts in 3G network Frame WLAN data for transmitting the reserve bytes of the data group Group of C & M data, and by the 3G network data frame transfer of carrying WLAN data to the Ir mapping/demapping module in BBU;
Ir mapping/demapping module in BBU is inserted WLAN data in 3G network data and is transferred to Ir demapping/mapping block, specifically comprises: the Ir mapping/demapping module in BBU inserts in 3G network Frame WLAN data for transmitting the reserve bytes of the data group Group of C & M data; By the 3G network data frame transfer of carrying WLAN data to Ir demapping/mapping block.
Because descending C & M data are in UPPTS+TS1 slot transmission, the shared time is 125 μ s+675 μ s=800us=32 * 25 μ s, i.e. 32 super-group, up C & M data are in TS0+DWPTS slot transmission, the shared time is 675 μ s+75 μ s=750 μ s=30 * 25 μ s, 30 super-group are used 8B/10B encoding and decoding in the serial transmission of Ir interface, so:
When 3G network message transmission rate is 1228.8Mbit/s line bit rate:
Descending wlan network data theory bandwidth is:
In 200 subframe * 5ms, can transmit every group of the super group of descending WLAN byte number * 8bit=200 subframe * number * group number * and can transmit descending WLAN byte number * 8bit=200*32*32* (24*4-6) * 8=147.456Mbit/s
Up wlan network data theory bandwidth is:
In 200 subframe * 5ms, can transmit every group of the super group of up WLAN byte number * 8bit=200 subframe * number * group number * and can transmit up WLAN byte number * 8bit=200*30*32* (24*4-6) * 8=138.24Mbit/s
When 3G network message transmission rate is 2457.6Mbit/s line bit rate:
Descending wlan network data theory bandwidth is:
In 200 subframe * 5ms, can transmit every group of the super group of descending WLAN byte number * 8bit=200 subframe * number * group number * and can transmit descending WLAN byte number * 8bit=200*32*32* (24*8-6) * 8=304.7424Mbit/s
Up wlan network data theory bandwidth is:
In 200 subframe * 5ms, can transmit every group of the super group of up WLAN byte number * 8bit=200 subframe * number * group number * and can transmit up WLAN byte number * 8bit=200*30*32* (24*8-6) * 8=285.696Mbit/s
When 3G network message transmission rate is 4915.2Mbit/s line bit rate:
Descending wlan network data theory bandwidth is:
In 200 subframe * 5ms, can transmit every group of the super group of descending WLAN byte number * 8bit=200 subframe * number * group number * and can transmit descending WLAN byte number * 8bit=200*32*32* (24*16-6) * 8=619.3152Mbit/s
Up wlan network data theory bandwidth is:
In 200 subframe * 5ms, can transmit every group of the super group of up WLAN byte number * 8bit=200 subframe * number * group number * and can transmit up WLAN byte number * 8bit=200*30*32* (24*16-6) * 8=580.608Mbit/s
In order to make receiving terminal can accurately identify the position that WLAN data are inserted, can further increase physical layer control word and describe super-group, Group or the byte that wlan network data take.
A kind of feasible locate mode is as shown in table 1:
The definition of table 1 physical layer control word
By above-mentioned control word, receiving terminal can find the position at WLAN data place more accurately, has improved the efficiency that receiving terminal reads WLAN data.
Embodiment bis-,
In this embodiment, RRU and AP arrange respectively, by AP, by Ir demapping/mapping block, directly connect BBU, Ir mapping/demapping module is set simultaneously in AP, RRU realizes and being connected of AP by the Ir mapping/demapping module in AP, and by the 3G network data of transmitting between AP forwarding RRU and BBU.
Now, the structure of this WLAN data transmission system as shown in Figure 6, access point 601 comprises access point module 6011, for Ir demapping/mapping block 6012 and the 2nd Ir mapping/demapping module 6013 for being connected with RRU606 being connected with BBU602, BBU602 comprises Ir mapping/demapping module 6021 and network interface 6022, BBU602 is by network interface 6022 connection route equipment 603, routing device 603 also connects RNC604 and AC605, RRU606 connects access point 601, RRU606 comprises the 2nd Ir demapping/mapping block 6061 and the RRU module 6062 for being connected with access point 601.
In this embodiment, the data in BBU602 realize and extraneous transmission by network interface 6022, in actual applications, also can use the interface of other form, or make otherwise to realize BBU and extraneous transfer of data.
As shown in Figure 6, between BBU602 and routing device 603, can realize transfer of data by transmission network 606, while using this transmission network 606 can make routing device 603 and BBU602 distant, realize the transmission between routing device 603 and BBU602.This transmission network 606 can be used PTN, PON or E1 etc.603 of routing devices can be used any equipment that can carry out route and data retransmission, for example, can use CE equipment.
Now, access point 601, need to be by Ir demapping/mapping block 6012, the Ir mapping/demapping module 6021 in BBU602 and network interface 6022, routing device 603 and transmission network 606 in access point 601 when to AC605 transmitting WLAN data.
The transmission of WLAN data is identical with embodiment mono-, the access point module 6011 that step S301 can be specially in access point 601 is sent to the Ir demapping/mapping block 6012 in access point 601 by WLAN data, and by Ir demapping/mapping block 6012 by WLAN transfer of data to the Ir mapping/demapping module 6021 in BBU602.
In step S305, Ir mapping/demapping module in BBU by Ir demapping/mapping block by WLAN transfer of data to access point, specifically comprise: the Ir mapping/demapping module 6021 in BBU602 by WLAN transfer of data to the Ir demapping/mapping block 6012 in access point 601; Ir demapping/mapping block 6012 is sent to access point module 6011 by WLAN data.
In this system, WLAN data and 3G network data can be transmitted respectively, but be further to improve data transmission efficiency, can be in transmitting WLAN data, by this system, continue transmission 3G network data, now, when RRU606 sends 3G network data to RNC604, access point 601 also needs to receive the 3G network data that RRU606 sends, and be sent to Ir demapping/mapping block 6012, Ir demapping/mapping block 6012 by shine upon/demapping of Ir module 6021 and routing device 603 by 3G network data retransmission to RNC604, wherein, access point 601 and RRU606 realize the transmission of data by the 2nd Ir mapping/demapping module 6013 in access point 601 and the 2nd Ir demapping/mapping block 6061 in RRU606, concrete, when RRU606 transmits 3G network data to access point 601, the 3G network data that RRU module 6062 sends needs are sent to the 2nd Ir demapping/mapping block 6061, by the 2nd Ir demapping/mapping block 6061, be sent to the 2nd Ir mapping/demapping module 6013, by the 2nd Ir mapping/demapping module 6013, by Ir demapping/mapping block 6012, send to BBU602 again.
When RNC604 sends 3G network data to RRU606, routing device 603 receives after the 3G network data of RNC604 transmission, by 3G network data retransmission to BBU602, BBU602 by shine upon/demapping of Ir module 6021 by 3G network transfer of data to the Ir demapping/mapping block 6012 in access point 601, Ir demapping/mapping block 6012 in access point 601 by 3G network data retransmission to RRU606, wherein, Ir demapping/mapping block 6012 in access point 601 by 3G network data retransmission to RRU606, specifically comprise: the Ir demapping/mapping block 6012 in access point 601 is sent to the 2nd Ir mapping/demapping module 6013 in access point 601 by 3G network data, by the 2nd Ir mapping/demapping module 6013 by 3G network data send in RRU606 by the 2nd Ir demapping/mapping block 6061, again by the 2nd Ir demapping/mapping block 6061 by 3G network data retransmission to RRU module 6062.
In order to improve efficiency of transmission, WLAN data can be inserted in 3G network data and transmit, now, in step S301, access point transfers to the Ir mapping/demapping module in BBU by WLAN data by Ir demapping/mapping block, specifically comprises: access point sends to Ir demapping/mapping block by WLAN data; Ir demapping/mapping block inserts WLAN data in 3G network data and transfers to the Ir mapping/demapping module in BBU;
In step S305, Ir mapping/demapping module in BBU by Ir demapping/mapping block by WLAN transfer of data to access point, specifically comprise: the Ir mapping/demapping module in BBU will WLAN data transfer to Ir demapping/mapping block in insertion 3G network data; Ir demapping/mapping block by WLAN transfer of data to access point.
When WLAN data are inserted to 3G network data, WLAN data can be inserted in the idle component in 3G network Frame, as long as WLAN data can be identified and read out to receiving terminal from 3G network Frame.
Concrete insertion method can be identical with the method that the WLAN data described in embodiment mono-are inserted, WLAN data are inserted in 3G network Frame for transmitting the reserve bytes of the data group Group of C & M data, and transmission carries the 3G network Frame of WLAN data, at this repeated description no longer just.
Embodiment tri-,
In this embodiment, RRU and AP arrange respectively, by RRU, by Ir demapping/mapping block, directly connect BBU, and AP is connected with RRU, realize the access of AP.
When AP is connected with RRU, can by with embodiment bis-in similar mode, in AP and RRU, be provided for interconnected Ir interface, and connect by Ir interface, also can connect by other interface, certainly, when the Ir demapping/mapping block in RRU has certain disposal ability, AP directly can be connected with the Ir demapping/mapping block in RRU.
Now, the structure of this WLAN data transmission system as shown in Figure 7, access point 701 connects RRU706, RRU706 comprises RRU module 7061 and Ir demapping/mapping block 7062 for being connected with BBU702, BBU702 comprises Ir mapping/demapping module 7021 and network interface 7022, BBU702 is by network interface 7022 connection route equipment 703, and routing device 703 also connects RNC704 and AC705.
In this embodiment, the data in BBU702 realize and extraneous transmission by network interface 7022, in actual applications, also can use the interface of other form, or make otherwise to realize BBU and extraneous transfer of data.
As shown in Figure 7, between BBU702 and routing device 703, can realize transfer of data by transmission network 707, while using this transmission network 707 can make routing device 703 and BBU702 distant, realize the transmission between routing device 703 and BBU702.This transmission network 707 can be used PTN, PON or E1 etc.703 of routing devices can be used any equipment that can carry out route and data retransmission, for example, can use CE equipment.
Now, access point 701, need to be by Ir demapping/mapping block 7062, the Ir mapping/demapping module 7021 in BBU702 and network interface 7022, routing device 703 and transmission network 706 in RRU706 when to AC705 transmitting WLAN data.
When carrying out the transmission of WLAN data, in step S301, access point 701 transfers to the Ir mapping/demapping module 7021 in BBU702 by WLAN data by Ir demapping/mapping block 7062, specifically comprise: access point 701 is sent to the Ir demapping/mapping block 7062 in RRU706 by WLAN data, Ir demapping/mapping block 7062 by WLAN transfer of data to the Ir mapping/demapping module 7021 in BBU702;
In step S305, Ir mapping/demapping module in BBU by Ir demapping/mapping block by WLAN transfer of data to access point, specifically comprise: the Ir mapping/demapping module 7021 in BBU702 by WLAN transfer of data to the Ir demapping/mapping block 7062 in RRU706, the Ir demapping/mapping block 7062 in RRU706 by WLAN data retransmission to access point 701.
In this system, WLAN data and 3G network data can be transmitted respectively, but be further to improve data transmission efficiency, can be in transmitting WLAN data, by this system, continue transmission 3G network data, now, when RRU706 sends 3G network data to RNC704, Ir demapping/mapping block 7062 receives the 3G network data that the RRU module 7061 in RRU706 sends, and by shine upon/demapping of Ir module 7021 and routing device 703 by 3G network data retransmission to RNC704;
When RNC604 sends 3G network data to RRU606, routing device 703 receives after the 3G network data of RNC704 transmission, by 3G network data retransmission to BBU702, BBU702 by shine upon/demapping of Ir module 7021 by 3G network transfer of data to the Ir demapping/mapping block 7062 in RRU706, by Ir demapping/mapping block 7062 by 3G network data retransmission to the RRU module 7061 in RRU706.
Further, when the coverage of base station is larger, in order to obtain good WLAN access effect, can on a RRU, connect a plurality of access points, now, when carrying out WLAN transfer of data, in step S301, Ir mapping/demapping module in BBU by Ir demapping/mapping block by WLAN transfer of data to access point, specifically comprise: the Ir mapping/demapping module in BBU by WLAN transfer of data to the Ir demapping/mapping block in RRU; Ir demapping/mapping block in RRU is determined the object access point of WLAN data; Ir demapping/mapping block in RRU sends to object access point by WLAN data.
In order to improve efficiency of transmission, WLAN data can be inserted in 3G network data and transmit, now, in step S301, access point transfers to the Ir mapping/demapping module in BBU by WLAN data by Ir demapping/mapping block, specifically comprises: access point sends to Ir demapping/mapping block by WLAN data; Ir demapping/mapping block inserts WLAN data in 3G network data and transfers to the Ir mapping/demapping module in BBU;
In step S305, Ir mapping/demapping module in BBU by Ir demapping/mapping block by WLAN transfer of data to access point, specifically comprise: the Ir mapping/demapping module in BBU will WLAN data transfer to Ir demapping/mapping block in insertion 3G network data; Ir demapping/mapping block by WLAN transfer of data to access point.
When WLAN data are inserted to 3G network data, WLAN data can be inserted in the idle component in 3G network Frame, as long as WLAN data can be identified and read out to receiving terminal from 3G network Frame.
Concrete insertion method can be identical with the method that the WLAN data described in embodiment mono-are inserted, WLAN data are inserted in 3G network Frame for transmitting the reserve bytes of the data group Group of C & M data, and transmission carries the 3G network Frame of WLAN data, at this repeated description no longer just.
The embodiment of the present invention provides a kind of WLAN data transmission system accordingly, and as shown in Figure 8, this system comprises: access point 801, BBU802, routing device 803, control point 805 and RNC804, wherein:
BBU802, for shine upon by Ir/demapping module by WLAN transfer of data to routing device, routing device connects BBU, control point and RNC;
During the WLAN transfer of data of realization from AC to AP, routing device 803 also for:
Receive after the WLAN data of control point transmission, by WLAN data retransmission, to BBU, routing device connects BBU, control point and RNC;
BBU802 also for: by Ir mapping/demapping module wherein by Ir demapping/mapping block by WLAN transfer of data to access point.
Known corresponding to embodiment mono-, BBU802 specifically for:
Ir mapping/demapping module in BBU by WLAN transfer of data to the Ir demapping/mapping block in access point;
Access point module in access point is sent to the Ir demapping/mapping block in access point by WLAN data, and by Ir demapping/mapping block by WLAN transfer of data to the Ir mapping/demapping module in BBU; And the Ir demapping/mapping block in access point receives after the WLAN data that Ir mapping/demapping module in BBU sends, WLAN data are sent to access point module.
Further, access point 801 also for:
Ir demapping in access point/mapping block receives the 3G network data that the RRU module in access point sends, and by Ir shine upon/demapping module and routing device by 3G network data retransmission to RNC;
Receive after the 3G network data that RNC sends, by 3G network data retransmission to BBU,
BBU802 also for:
By shine upon/demapping of Ir module by 3G network transfer of data to the Ir demapping/mapping block in access point;
By Ir demapping/mapping block by 3G network data retransmission to RRU module.
Known corresponding to embodiment bis-, access point 801 also for:
Access point receives the 3G network data that RRU sends, and is sent to Ir demapping/mapping block, Ir demapping/mapping block by Ir shine upon/demapping module and routing device by 3G network data retransmission to RNC.
Receive after the 3G network data that RNC sends, by 3G network data retransmission to BBU;
BBU802 also for:
By shine upon/demapping of Ir module by 3G network transfer of data to the Ir demapping/mapping block in access point;
By Ir demapping/mapping block by 3G network data retransmission to RRU;
Known corresponding to embodiment tri-, Ir demapping/mapping block is arranged in the RRU being connected with access point;
WLAN data are sent to the Ir demapping/mapping block in RRU;
RRU is used for, by Ir demapping/mapping block by WLAN transfer of data to the Ir mapping/demapping module in BBU;
BBU802 specifically for:
By Ir mapping/demapping module by WLAN transfer of data to the Ir demapping/mapping block in RRU;
RRU also for, by Ir demapping/mapping block by WLAN data retransmission to access point.
When transmission 3G network data, routing device 803 also for:
Receive after the 3G network data that RNC sends, by 3G network data retransmission to BBU;
BBU802 also for:
By shine upon/demapping of Ir module by 3G network transfer of data to the Ir demapping/mapping block in RRU.
RRU also for:
Ir demapping/mapping block receives the 3G network data that the RRU module in RRU sends, and by Ir shine upon/demapping module and routing device by 3G network data retransmission to RNC; And after the 3G network data that send of the Ir mapping/demapping module in receiving BBU, by Ir demapping/mapping block by 3G network data retransmission to the RRU module in RRU.
When Ir demapping/mapping block connects a plurality of access point by RRU, the Ir demapping/mapping block in RRU sends to access point by WLAN data, specifically comprises:
By Ir demapping/mapping block, determined the object access point of WLAN data; And WLAN data are sent to object access point.
Corresponding to embodiment mono-, embodiment bis-and embodiment tri-, for improving data transmission efficiency, Ir demapping/mapping block in access point 801 or RRU to the Ir mapping/demapping module in BBU, specifically comprises WLAN transfer of data: Ir demapping/mapping block will WLAN data inserts in 3G network data and transfers to the Ir mapping/demapping module in BBU;
Ir mapping/demapping module in BBU802 by Ir demapping/mapping block by WLAN transfer of data to the Ir demapping/mapping block in access point, specifically comprise: the Ir mapping/demapping module in BBU will transfer to Ir demapping/mapping block in WLAN data insertion 3G network data.
In this WLAN data transmission system, between routing device and BBU, can be connected by transmission network, this transmission network can be used PTN, PON or E1 etc.
803 of routing devices can be used any equipment that can carry out route and data retransmission, for example, can use CE equipment.
The embodiment of the present invention is also corresponding provides a kind of WLAN data transmission device, and this device is the access point in WLAN data transmission system, and as shown in Figure 9, this device comprises:
Ir demapping/mapping block 902, the WLAN data that send for receiving access point module, and transfer to the Ir mapping/demapping module in BBU.
Corresponding to embodiment mono-, when RRU and access point merge while arranging, in device, also comprise:
RRU module, for the treatment of 3G network data;
Ir demapping/mapping block also for, receive the 3G network data that RRU module sends, and transfer to the Ir mapping/demapping module in BBU.
Corresponding to embodiment bis-, when RRU connects BBU by AP, in device, also comprise:
The 2nd Ir mapping/demapping module, the 3G network data that send for receiving RRU;
Ir demapping/mapping block 902 also for, receive the 3G network data of the 2nd Ir mapping/demapping module forwards, and transfer to the Ir mapping/demapping module in BBU.
For further improving data transmission efficiency, Ir demapping/mapping block 902 receives the WLAN data that access point module sends, and transfers to the Ir mapping/demapping module in BBU, is specially:
Receive the WLAN data that access point module sends, and WLAN data are inserted in 3G network data and transferred to the Ir mapping/demapping module in BBU.
When the WLAN transfer of data realizing from AC to AP, Ir demapping/mapping block 902 also for, after the WLAN data of the Ir mapping/demapping module transmission in receiving BBU, by WLAN data retransmission to access point module.
For embodiment tri-, the embodiment of the present invention also provides a kind of WLAN data transmission device, and this device can be specially the RRU in WLAN data transmission system, and as shown in figure 10, this device comprises:
At least one access point interface 1001, for connecting access point;
Ir demapping/mapping block 1002, the WLAN data that send by access point interface for receiving access point, and transfer to the Ir mapping/demapping module in BBU.
For continuing to process 3G data, in this device, also comprise RRU module, for the treatment of 3G network data;
Ir demapping/mapping block 1002 also for, receive the 3G network data that RRU module sends, and transfer to the Ir mapping/demapping module in BBU.
In order further to improve data transmission efficiency, Ir demapping/mapping block 1002 receives the WLAN data that access point sends by access point interface, and transfers to the Ir mapping/demapping module in BBU, can be specially:
Receive the WLAN data that access point sends by access point interface, and WLAN data are inserted in 3G network data and transferred to the Ir mapping/demapping module in BBU.
When realizing AC to the transfer of data of AP, Ir demapping/mapping block also for, after the WLAN data that the Ir mapping/demapping module in receiving BBU sends, WLAN data are transmitted to access point by least one access point interface.
When RRU is connected with a plurality of access point, Ir demapping/mapping block 1002 is transmitted to access point by WLAN data by least one access point interface, is specially:
Ir demapping/mapping block 1002 is determined the object access point of WLAN data; And by connecting the access point interface of object access point, WLAN data are sent to object access point.
The embodiment of the present invention provides a kind of WLAN data transmission method, Apparatus and system, by by the base station equipment in WLAN connecting system and 3G network in conjunction with setting, realize by the Ir interface in base station equipment and connect AP and the AC in WLAN connecting system, WLAN data between AP and AC can be transmitted by Ir interface, and then saved WLAN construction cost, and improve the transmission reliability between AP and AC.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (35)
1. a WLAN data transmission method, is characterized in that, comprising:
Access point transfers to the Ir mapping/demapping module in Base Band Unit equipment B BU by WLAN (wireless local area network) WLAN data by Ir demapping/mapping block;
Described Ir mapping/demapping module is by WLAN transfer of data to routing device, and described routing device connects BBU, control point and radio network controller (RNC);
Described routing device routes to control point by described WLAN data.
2. the method for claim 1, is characterized in that, also comprises:
Described routing device receives after the WLAN data that control point sends, by described WLAN data retransmission to BBU;
Ir mapping/demapping module in described BBU by Ir demapping/mapping block by described WLAN transfer of data to access point.
3. method as claimed in claim 2, is characterized in that, described access point transfers to the Ir mapping/demapping module in BBU by WLAN data by Ir demapping/mapping block, specifically comprises:
Access point module in described access point is sent to the Ir demapping/mapping block in described access point by WLAN data, and by described Ir demapping/mapping block by WLAN transfer of data to the Ir mapping/demapping module in BBU;
Ir mapping/demapping module in described BBU by Ir demapping/mapping block by described WLAN transfer of data to access point, specifically comprise:
Ir mapping/demapping module in described BBU by WLAN transfer of data to the Ir demapping/mapping block in access point; Described Ir demapping/mapping block is sent to described access point module by described WLAN data.
4. method as claimed in claim 3, is characterized in that, also comprises:
Described Ir demapping/mapping block receives the 3G network data that RF remote equipment RRU module in described access point sends, and by described Ir mapping/demapping module and routing device by described 3G network data retransmission to RNC;
Described routing device receives after the 3G network data of RNC transmission, by described 3G network data retransmission to BBU, described BBU by shine upon/demapping of Ir module by described 3G network transfer of data to the Ir demapping/mapping block in access point, by described Ir demapping/mapping block by described 3G network data retransmission to RRU module.
5. method as claimed in claim 3, is characterized in that, also comprises:
Described access point receives the 3G network data that RRU sends, and is sent to Ir demapping/mapping block, described Ir demapping/mapping block by described Ir shine upon/demapping module and routing device by described 3G network data retransmission to RNC;
Described routing device receives after the 3G network data of RNC transmission, by described 3G network data retransmission to BBU, described BBU by shine upon/demapping of Ir module by described 3G network transfer of data to the Ir demapping/mapping block in access point, the Ir demapping/mapping block in described access point by described 3G network data retransmission to RRU.
6. method as claimed in claim 2, is characterized in that, described access point transfers to the Ir mapping/demapping module in BBU by WLAN data by Ir demapping/mapping block, specifically comprises:
Described access point is sent to the Ir demapping/mapping block in RRU by described WLAN data, described Ir demapping/mapping block by described WLAN transfer of data to the Ir mapping/demapping module in BBU;
Ir mapping/demapping module in described BBU by Ir demapping/mapping block by described WLAN transfer of data to access point, specifically comprise:
Ir mapping/demapping module in described BBU by WLAN transfer of data to the Ir demapping/mapping block in described RRU, the Ir demapping/mapping block in described RRU by described WLAN data retransmission to access point.
7. method as claimed in claim 6, is characterized in that, also comprises:
Described Ir demapping/mapping block receives the 3G network data that RRU module in described RRU sends, and by described Ir mapping/demapping module and routing device by described 3G network data retransmission to RNC;
Described routing device receives after the 3G network data of RNC transmission, by described 3G network data retransmission to BBU, described BBU by shine upon/demapping of Ir module by described 3G network transfer of data to the Ir demapping/mapping block in described RRU, by described Ir demapping/mapping block by described 3G network data retransmission to the RRU module in described RRU.
8. the method as described in claim 6 or 7, it is characterized in that, when described Ir demapping/mapping block connects a plurality of access point by described RRU, the Ir mapping/demapping module in described BBU by Ir demapping/mapping block by described WLAN transfer of data to access point, specifically comprise:
Ir mapping/demapping module in described BBU by described WLAN transfer of data to the Ir demapping/mapping block in described RRU; Ir demapping/mapping block in described RRU is determined the object access point of described WLAN data; Ir demapping/mapping block in described RRU sends to described object access point by described WLAN data.
9. the method as described in claim 4,5 or 7, is characterized in that, described access point transfers to the Ir mapping/demapping module in BBU by WLAN data by Ir demapping/mapping block, specifically comprises:
Access point sends to Ir demapping/mapping block by WLAN data;
Ir demapping/mapping block inserts WLAN data in 3G network data and transfers to the Ir mapping/demapping module in BBU;
Ir mapping/demapping module in described BBU by Ir demapping/mapping block by described WLAN transfer of data to access point, specifically comprise:
Ir mapping/demapping module in described BBU is inserted WLAN data in 3G network data and is transferred to Ir demapping/mapping block;
Described Ir demapping/mapping block by described WLAN transfer of data to access point.
10. method as claimed in claim 9, is characterized in that, described Ir demapping/mapping block inserts WLAN data in 3G network data and transfers to the Ir mapping/demapping module in BBU, specifically comprises:
Described Ir demapping/mapping block inserts in 3G network Frame described WLAN data for transmitting the reserve bytes of the data group Group of control and management C & M data, and by the 3G network data frame transfer of carrying WLAN data to the Ir mapping/demapping module in BBU;
Ir mapping/demapping module in described BBU is inserted WLAN data in 3G network data and is transferred to Ir demapping/mapping block, specifically comprises:
Ir mapping/demapping module in described BBU inserts in 3G network Frame described WLAN data for transmitting the reserve bytes of the data group Group of C & M data;
By the 3G network data frame transfer of carrying WLAN data to Ir demapping/mapping block.
11. methods as claimed in claim 1 or 2, is characterized in that, between described routing device and described BBU, by transmission network, are connected.
12. methods as claimed in claim 1 or 2, is characterized in that, described routing device is specially: user network boundary device ce router, gateway or Provider Edge pe router.
13. 1 kinds of WLAN data transmission systems, is characterized in that, comprising: access point, Base Band Unit equipment B BU, routing device, control point and radio network controller (RNC), wherein:
Access point, for transferring to WLAN (wireless local area network) WLAN data the Ir mapping/demapping module of BBU by Ir demapping/mapping block;
BBU, for by described Ir mapping/demapping module by WLAN transfer of data to routing device, described routing device connects BBU, control point and RNC;
Routing device, for routing to control point by described WLAN data.
14. systems as claimed in claim 13, is characterized in that, described routing device also for:
Receive after the WLAN data that control point sends, by described WLAN data retransmission to BBU;
Described BBU also for: by Ir mapping/demapping module wherein by Ir demapping/mapping block by described WLAN transfer of data to access point.
15. systems as claimed in claim 14, is characterized in that, described BBU specifically for:
Ir mapping/demapping module in described BBU by WLAN transfer of data to the Ir demapping/mapping block in access point;
Described access point specifically for:
Access point module in described access point is sent to the Ir demapping/mapping block in described access point by WLAN data, and by described Ir demapping/mapping block by WLAN transfer of data to the Ir mapping/demapping module in BBU; And the Ir demapping/mapping block in described access point receives after the WLAN data that Ir mapping/demapping module in described BBU sends, described WLAN data are sent to described access point module.
16. systems as claimed in claim 15, is characterized in that, described access point also for:
Ir demapping/mapping block in described access point receives the 3G network data that RF remote equipment RRU module in described access point sends, and by described Ir mapping/demapping module and routing device by described 3G network data retransmission to RNC.
17. systems as claimed in claim 16, is characterized in that, described routing device also for:
Receive after the 3G network data that RNC sends, by described 3G network data retransmission to BBU,
Described BBU also for:
By shine upon/demapping of Ir module by described 3G network transfer of data to the Ir demapping/mapping block in access point;
Described access point also for:
By described Ir demapping/mapping block by described 3G network data retransmission to RRU module.
18. systems as claimed in claim 15, is characterized in that, described access point also for:
Described access point receives the 3G network data that RRU sends, and is sent to Ir demapping/mapping block, described Ir demapping/mapping block by described Ir shine upon/demapping module and routing device by described 3G network data retransmission to RNC.
19. systems as claimed in claim 18, is characterized in that, described routing device also for:
Receive after the 3G network data that RNC sends, by described 3G network data retransmission to BBU;
Described BBU also for:
By shine upon/demapping of Ir module by described 3G network transfer of data to the Ir demapping/mapping block in access point;
Described access point also for:
By Ir demapping/mapping block by described 3G network data retransmission to RRU.
20. systems as claimed in claim 14, is characterized in that, described Ir demapping/mapping block is arranged in the RRU being connected with access point;
Described access point specifically for:
Described WLAN data are sent to the Ir demapping/mapping block in described RRU;
Described RRU is used for, by Ir demapping/mapping block by described WLAN transfer of data to the Ir mapping/demapping module in BBU;
Described BBU specifically for:
By Ir mapping/demapping module by WLAN transfer of data to the Ir demapping/mapping block in described RRU;
Described RRU also for, by Ir demapping/mapping block by described WLAN data retransmission to access point.
21. systems as claimed in claim 20, is characterized in that, described routing device also for:
Receive after the 3G network data that RNC sends, by described 3G network data retransmission to BBU;
Described BBU also for:
By shine upon/demapping of Ir module by described 3G network transfer of data to the Ir demapping/mapping block in described RRU;
Described RRU also for:
Described Ir demapping/mapping block receives the 3G network data that RRU module in described RRU sends, and by described Ir mapping/demapping module and routing device by described 3G network data retransmission to RNC; And after the 3G network data that send of the Ir mapping/demapping module in receiving described BBU, by described Ir demapping/mapping block by described 3G network data retransmission to the RRU module in described RRU.
22. systems as described in claim 20 or 21, is characterized in that, described Ir demapping/mapping block connects a plurality of access points by described RRU;
Ir demapping/mapping block in described RRU sends to access point by described WLAN data, specifically comprises:
By Ir demapping/mapping block, determined the object access point of described WLAN data; And described WLAN data are sent to described object access point.
23. systems as described in claim 16,19 or 21, is characterized in that, the Ir demapping/mapping block in described access point or described RRU to the Ir mapping/demapping module in BBU, specifically comprises WLAN transfer of data:
Ir demapping/mapping block inserts WLAN data in 3G network data and transfers to the Ir mapping/demapping module in BBU;
Ir mapping/demapping module in described BBU to the Ir demapping/mapping block in access point or RRU, specifically comprises described WLAN transfer of data:
Ir mapping/demapping module in described BBU is inserted WLAN data in 3G network data and is transferred to Ir demapping/mapping block.
24. systems as described in claim 13 or 14, is characterized in that, between described routing device and described BBU, by transmission network, are connected.
25. systems as described in claim 13 or 14, is characterized in that, described routing device is specially: user network boundary device ce router, gateway or Provider Edge pe router.
26. 1 kinds of WLAN data transmission devices, is characterized in that, comprising:
Access point module, for the treatment of WLAN (wireless local area network) WLAN data;
Ir demapping/mapping block, the WLAN data that send for receiving described access point module, and transfer to the Ir mapping/demapping module in Base Band Unit equipment B BU, by described BBU by shine upon/demapping of described Ir module by WLAN transfer of data to routing device, by described routing device, described WLAN data are routed to control point, described routing device connects BBU, control point and RNC.
27. devices as claimed in claim 26, is characterized in that, also comprise:
RF remote equipment RRU module, for the treatment of 3G network data;
Described Ir demapping/mapping block also for, receive the 3G network data that described RRU module sends, and transfer to the Ir mapping/demapping module in BBU.
28. devices as claimed in claim 26, is characterized in that, also comprise:
The 2nd Ir mapping/demapping module, the 3G network data that send for receiving RRU;
Described Ir demapping/mapping block also for, receive the 3G network data of described the 2nd Ir mapping/demapping module forwards, and transfer to the Ir mapping/demapping module in BBU.
29. devices as described in claim 27 or 28, is characterized in that, described Ir demapping/mapping block receives the WLAN data that described access point module sends, and transfers to the Ir mapping/demapping module in BBU, is specially:
Receive the WLAN data that described access point module sends, and described WLAN data are inserted in 3G network data and transferred to the Ir mapping/demapping module in BBU.
30. devices as described in claim 27 or 28, is characterized in that, described Ir demapping/mapping block also for, after the WLAN data that the Ir mapping/demapping module in receiving BBU sends, by WLAN data retransmission to access point module.
31. 1 kinds of WLAN data transmission devices, is characterized in that, comprising:
At least one access point interface, for connecting access point;
Ir demapping/mapping block, the WLAN (wireless local area network) WLAN data that send by described access point interface for receiving described access point, and transfer to the Ir mapping/demapping module in Base Band Unit equipment B BU, by described BBU by shine upon/demapping of described Ir module by WLAN transfer of data to routing device, by described routing device, described WLAN data are routed to control point, described routing device connects BBU, control point and RNC.
32. devices as claimed in claim 31, is characterized in that, also comprise:
RF remote equipment RRU module, for the treatment of 3G network data;
Described Ir demapping/mapping block also for, receive the 3G network data that described RRU module sends, and transfer to the Ir mapping/demapping module in BBU.
33. devices as claimed in claim 32, is characterized in that, described Ir demapping/mapping block receives the WLAN data that described access point sends by described access point interface, and transfers to the Ir mapping/demapping module in BBU, is specially:
Receive the WLAN data that described access point sends by described access point interface, and described WLAN data are inserted in 3G network data and transferred to the Ir mapping/demapping module in BBU.
34. devices as claimed in claim 31, it is characterized in that, described Ir demapping/mapping block also for, after the WLAN data that Ir mapping/demapping module in receiving BBU sends, WLAN data are transmitted to access point by described at least one access point interface.
35. devices as claimed in claim 34, is characterized in that, described Ir demapping/mapping block is transmitted to access point by WLAN data by described at least one access point interface, is specially:
Described Ir demapping/mapping block is determined the object access point of described WLAN data; And by described in connection
The access point interface of object access point sends to described object access point by described WLAN data.
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| US9491162B2 (en) | 2013-03-28 | 2016-11-08 | Telefonaktiebolaget L M Ericsson (Publ) | Technique for controlling loss and theft of remote radio equipment in a cellular ad hoc network |
| US9191830B2 (en) | 2013-03-28 | 2015-11-17 | Telefonaktiebolaget L M Ericsson (Publ) | Local wireless connectivity for radio equipment of a base station in a cellular communications network |
| US9055461B2 (en) * | 2013-03-28 | 2015-06-09 | Telefonaktiebolaget L M Ericsson (Publ) | Technique for troubleshooting remote cellular base station radios from the network management platform using local wireless hotspot at the radio site |
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| CN201699992U (en) * | 2010-05-14 | 2011-01-05 | 北京邦讯技术有限公司 | System sharing base station bandwidth by wireless access point |
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| CN201699992U (en) * | 2010-05-14 | 2011-01-05 | 北京邦讯技术有限公司 | System sharing base station bandwidth by wireless access point |
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