CN101051865B - Broadcasting method on network composed of baseband resource pool and remote end radio frequency unit - Google Patents
Broadcasting method on network composed of baseband resource pool and remote end radio frequency unit Download PDFInfo
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Abstract
The invention discloses method for carrying out broadcasting through network composed of resource pool in baseband and radio frequency unit in remote end. The method includes steps: (1) network unit to be broadcasted constructs data packet, and broadcasting symbol is filled to head of packet; (2) scanning network interfaces, the network unit sends broadcasting packets one by one to adjacent one hop network unit; (3) receiving the said broadcasting packet, network unit forwards the broadcasting packet to adjacent one hop network unit selectively; repeating step (3) till the broadcasting packet reaches to each terminal node in network; finishing broadcasting; transmission of broadcasting packet in network does not restrict by BBU and RRU network formation, number of connections, and specific frame format in link layer. Features are: flexible network configuration, easy management, not repeating forwarding broadcasting packet in any form of network, high efficiency.
Description
Technical field
The present invention relates to wireless communication field, base band resource pool and remote radio unit (RRU) carry out the method for data broadcasting in particularly a kind of WCDMA (Wideband Code Division Multiple Access (WCDMA)) system under different networking modes.
Background technology
In the WCDMA system, BBU (base band resource pool) is responsible for providing the wireless coverage of WCDMA network, finishes access and the transmission of radio links function of UE (user terminal) by Uu (interface between user terminal UE and the universal land radio access web URTAN) interface; Link with RNC (radio network controller) by Iub interface (interface between BBU and RNC), report the BBU metrical information, send the system information broadcast that RNC provides, carry out the access control, mobile management, RRM and the control command that issue by RNC, carry out that FP (Frame Protocol) handles, ATM (asynchronous transfer mode) transfer management; Provide management and configuration by Operation and Maintenance to equipment.
Remote radio unit (RRU) (RRU) is the radio frequency part of external BBU.Be responsible for providing the wireless coverage of WCDMA network, finish access and the transmission of radio links function of UE by the Uu interface; Link to each other with BBU by optical interface, report measurement information, the transmitting system information broadcast cooperates BBU (base band resource pool) to finish the function of whole BBU.For system provides coverage mode flexibly.
BBU and RRU interface are followed general standard interface, and mutual between the two data comprise the IQ data of user's face and the signaling of chain of command, transmit by Layer1 and Layer2.Its interface definition as shown in Figure 1.
Networking between BBU and the RRU has three kinds of basic topological structures: chain, tree-like, annular is respectively as accompanying drawing 2,3, shown in 4.The form that networking also can adopt three kinds of structures to mix.
Directly connect between wherein per two network element and be called an adjacent jumping (hop).One jumps direct connection the can refer between BBU and the RRU, also can refer to direct connection the between RRU and the RRU.Each network element can mail to packet and an own adjacent jumping equipment, also will bear the task of transmitting the packet that an adjacent jumping equipment sends here simultaneously.
Broadcasting can be used to transmit configuration information, state, the data of equipment is inquired about etc., because the realization of broadcasting does not need the network equipment to bind the unique device identification or the network address, it is especially effective to be used for sending configuration information in the device initialize stage; How on the network of BBU and RRU composition, to broadcast, also do not have concrete method at present.
Summary of the invention
The invention provides a kind of method of on the network of base band resource pool and remote radio unit (RRU) composition, broadcasting, be used for realizing the efficient transfer of broadcasting at the network of various topological structures.
The technical solution used in the present invention is:
A kind of method of broadcasting in the network of base band resource pool and remote radio unit (RRU) composition is characterized in that, comprising:
(1) the network element construction data bag that will broadcast is filled in broadcast flag in packet header;
(2) described network element scan for networks interface sends to an adjacent jumping network element one by one with broadcast packet;
(3) network element of receiving described broadcast packet optionally is transmitted to adjacent one with this broadcast packet and jumps network element;
Repeating step (3) arrives each terminal node in the network up to this broadcast packet; Sign-off.
Further, described step (3) specifically comprises:
A, corresponding network element are received broadcast packet; Judge that whether the present networks unit is the base band resource pool in the loop network, if then broadcast packet is not transmitted; Otherwise carry out step B;
B, scan the total interface of this network element successively, if exist with broadcast packet come the different interface of source interface, then the broadcast packet of receiving is sent to and connects this/a jumping network element of these interfaces; Otherwise broadcast packet is not transmitted.
Further, described step B specifically comprises:
B1, according to an interface of interface list scanning present networks unit, carry out step B2;
B2, judge whether the interface scanned is identical with the interface of receiving broadcast packet,, directly carry out step B4 if identical then do not transmit broadcast packet; Otherwise carry out step B3;
B3, the broadcast packet of receiving sent to connect one of this interface and jump network element; Carry out step B4 then;
B4, judge whether the total interface been scanned of present networks unit, if not then scan another interface and return step B2; Otherwise finish of the forwarding of present networks unit to broadcast packet.
Further, described network element is for being base band resource pool or remote radio unit (RRU).
Further, when broadcast packet no longer is forwarded, think that this broadcast packet has arrived each terminal node in the network,
Further, in the described step (3):, then think and received broadcast packet if find that the data packet head of receiving has broadcast flag during network element scan interface buffering area.
Further, among the described step B, in the network of tree-like networking, remote radio unit (RRU) sends to all next-hop network unit with broadcast packet earlier, issues one then and jumps network element.
Further, described base band resource pool and described remote radio unit (RRU) adopt the connected mode networking of hop-by-hop.
Further, the topology of networks formed of described base band resource pool and described remote radio unit (RRU) comprises: the mixed structure of annular, tree-like, chain and tree-like and chain.
After having adopted the solution of the present invention, the transmission of broadcast packet in network can not be subjected to the restriction of networking mode, number of connection and the concrete frame format of link layer of BBU and RRU, therefore network configuration is flexible, realize, manage fairly simple, broadcast packet can not repeat to transmit on the network that various forms is formed, and efficient is higher.
Description of drawings
Fig. 1 is the hierarchical structure of a kind of typical B BU and RRU connecting interface;
Fig. 2 is the network topology structure of the communication link protection between BBU and the RRU;
Fig. 3 is the network topology structure of the tree-like networking between BBU and the RRU;
Fig. 4 is the network topology structure of the annular networking between BBU and the RRU;
Fig. 5 is the concrete implementing procedure figure of the method for broadcasting in the network of BBU and RRU composition of the present invention;
Fig. 6 is the network topology structure that BBU and RRU adopt tree-like and chain mixed networking in the application example of the present invention.
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.
The connected mode of the network using hop-by-hop that BBU and RRU form among the present invention, basic topological structure is chain, annular and tree-like, also can be to have mixed chain and tree-like mixed structure, each network element is born the function that receives packet, processing, forwarding.
Be the flow chart of the method in the network that BBU and RRU form, broadcasted as shown in Figure 5, specifically may further comprise the steps:
(1) RRU that will broadcast or BBU construction data bag are filled in broadcast flag in packet header;
(2) this RRU scan for networks interface sends to an adjacent jumping network element one by one with broadcast packet and is equipped with, and promptly sends to a jumping equipment that connects each interface;
(3) network element of receiving described broadcast packet optionally is transmitted to adjacent one with it and jumps network element;
On network, each network element is the timing scan interface buffer all, if find the data packet head receive broadcast flag is arranged, and represents that then this network element received broadcast packet.
Network element and equipment in step (2) and (3) refer to RRU or BBU.
Step (3) specifically can be divided into following steps:
A, corresponding network element are received broadcast packet; Judge that whether the present networks unit is the BBU in the loop network, if then broadcast packet is not transmitted; Otherwise carry out step B;
B, scan present networks unit total interface successively, if exist with broadcast packet come the different interface of source interface, then the broadcast packet of receiving is sent to connection this/a jumping equipment of these interfaces; Otherwise do not transmit broadcast packet.
Step B can specifically be divided into following steps:
B1, begin to scan an interface of this network element, carry out step B2 according to interface list;
B2, judge whether the interface scanned is identical with the interface of receiving broadcast packet, if identical then, directly carry out step B4 not to the device forwards broadcast packet of this interface of connection; Otherwise carry out step B3;
B3, the broadcast packet of receiving sent to a jumping equipment that connects this interface; Carry out step B4 then;
B4, judge whether this equipment the total interface been scanned---promptly whether total interface all travels through, if not then scan another not scanned interface and return step B2; Otherwise finish the scanning of docking port, the present networks unit is no longer transmitted broadcast packet.
Repeating step 3 has sent to terminal nodes all in the network until broadcast packet, and just when broadcast packet no longer was forwarded, broadcasting finished.
According to above implementation method, broadcast packet any one node from network sends, and can arrive each destination node in the network, and only arrive each RRU once.
Network for tree-like networking, certain RRU node in the subtree is if send broadcasting, can send by scanning sequency, also can send to own all next-hop node equipment earlier, issue a hop node equipment then, that is to say the interface that scans next-hop device when scan interface earlier, the interface of equipment is jumped in scanning last one again.This broadcast packet can arrive the root node BBU of tree at last, and BBU is transmitted to the root node of other RRU subtrees again.
For the network of annular networking, Node B BU no longer transmits after receiving the broadcast packet of certain RRU, to avoid broadcast packet Infinite Cyclic in looped network.
Further be illustrated with an application example of the present invention below.
As shown in Figure 6, should adopt tree-like and chain mixed networking with BBU in the example and RRU,, in this network, remote radio unit (RRU) E need issue packet all devices in the network.The step that its broadcasting realizes is:
(1) RRU E construction data bag is filled in broadcast flag in packet header;
(2) RRU E scan for networks interface sends to an adjacent jumping equipment, i.e. RRU F and RRU D with broadcast packet;
(3) after RRU F receives broadcast packet, the scan for networks interface; Because coupled equipment has only broadcast source E, promptly the interface of RRU F has only one, and promptly this interface and RRU F receive that the interface of broadcasting is same, so RRU F carried out respective handling according to the broadcast packet content, does not carry out the forwarding of broadcast packet;
After RRU D received broadcast packet, according to interface relationship, the interface of RRU D had two, and one of them is connected with RRU E, and for RRU D receives the interface of broadcast packet, so RRU D only is transmitted to broadcast packet the equipment that another interface connects, i.e. the BBU of a jumping it on;
Repeating step (3);
BBU receives broadcast packet, and two equipment of itself and RRU A and RRU D link to each other, but RRU D is the source node that comes of broadcast packet, and then BBU only is transmitted to subtree root node RRU A with broadcast packet;
Subtree root node RRU A also adopts the processing of similar step 3, and RRU A has three interfaces, wherein is the source interface that comes of broadcast packet to the interface that links to each other with BBU, so RRU A only is handed down to RRU B and RRU C with broadcast packet; Finally, broadcast packet is delivered to leaf node RRU B and RRU C;
This moment, broadcast packet arrived each terminal node in the network, no longer was forwarded sign-off.
Above application example is described, only be the execution mode of the present invention under BBU and RRU concrete networking situation, but protection scope of the present invention is not limited thereto.Protection scope of the present invention is as the criterion with the protection range of claim.
Claims (4)
1. method of in the network that base band resource pool and remote radio unit (RRU) are formed, broadcasting, it is characterized in that, the topology of networks that described base band resource pool and described remote radio unit (RRU) are formed comprises: the mixed structure of annular, tree-like, chain and tree-like and chain, and this method comprises:
(1) the network element construction data bag that will broadcast is filled in broadcast flag in packet header;
(2) the network element scan for networks interface that will broadcast sends to an adjacent jumping network element one by one with broadcast packet;
On network, each network element is the timing scan interface buffer all, if find the data packet head receive broadcast flag is arranged, and represents that then this network element received broadcast packet;
(3) network element of receiving described broadcast packet optionally is transmitted to adjacent one with this broadcast packet and jumps network element, specifically comprises:
A, the network element of receiving described broadcast packet judge that whether the present networks unit is the base band resource pool in the loop network, if then broadcast packet is not transmitted; Otherwise carry out step B;
B, scan the total interface of this network element successively, if exist with broadcast packet come the different interface of source interface, then the broadcast packet of receiving is sent to a jumping network element of coming the different interface of source interface that connects with broadcast packet; Otherwise broadcast packet is not transmitted;
Wherein, in the network of tree-like networking, remote radio unit (RRU) sends to all next-hop network unit with broadcast packet earlier, issues one then and jumps network element;
Repeating step (3) arrives each terminal node in the network up to this broadcast packet; Sign-off.
2. the method for claim 1 is characterized in that, described step B specifically comprises:
B1, according to an interface of interface list scanning present networks unit, carry out step B2;
B2, judge whether the interface scanned is identical with the interface of receiving broadcast packet,, directly carry out step B4 if identical then do not transmit broadcast packet; Otherwise carry out step B3;
B3, the broadcast packet of receiving sent to connect one of this interface and jump network element; Carry out step B4 then;
B4, judge whether the total interface been scanned of present networks unit, if not then scan another interface and return step B2; Otherwise finish of the forwarding of present networks unit to broadcast packet.
3. the method for claim 1 is characterized in that: when broadcast packet no longer is forwarded, think that this broadcast packet has arrived each terminal node in the network.
4. the method for claim 1 is characterized in that: the connected mode networking of described base band resource pool and described remote radio unit (RRU) employing hop-by-hop.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100888446A CN101051865B (en) | 2007-03-26 | 2007-03-26 | Broadcasting method on network composed of baseband resource pool and remote end radio frequency unit |
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| CN2007100888446A CN101051865B (en) | 2007-03-26 | 2007-03-26 | Broadcasting method on network composed of baseband resource pool and remote end radio frequency unit |
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| CN101051865A CN101051865A (en) | 2007-10-10 |
| CN101051865B true CN101051865B (en) | 2011-10-26 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101179812B (en) * | 2007-11-29 | 2012-07-04 | 中兴通讯股份有限公司 | Dynamic baseband assignment based interference band measuring method |
| CN101217786B (en) * | 2008-01-02 | 2012-04-25 | 华为技术有限公司 | Baseband resource sharing method, communication system and device |
| CN101626576B (en) * | 2008-07-07 | 2011-10-26 | 中兴通讯股份有限公司 | Method for generating parameter configuration template and method for configuring parameters by utilizing template |
| CN101860802A (en) * | 2010-05-21 | 2010-10-13 | 中兴通讯股份有限公司 | Failure processing method and system |
| CN102511180A (en) * | 2011-11-29 | 2012-06-20 | 华为技术有限公司 | Topology information processing method for antenna feeder device, antenna feeder device and system |
| CN117155852B (en) * | 2023-10-30 | 2024-02-23 | 苏州元脑智能科技有限公司 | Routing method and device of broadcast message, computer equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001041378A1 (en) * | 1999-12-06 | 2001-06-07 | Telefonaktiebolaget L M Ericsson (Publ) | Broadcast as a triggering mechanism for route discovery |
| WO2005107179A1 (en) * | 2004-04-30 | 2005-11-10 | Daimlerchrysler Ag | Data communications network with a decentralized communications management |
| CN1753387A (en) * | 2004-09-26 | 2006-03-29 | 华为技术有限公司 | Method of imlementing information broadcasting in radio communication network |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001041378A1 (en) * | 1999-12-06 | 2001-06-07 | Telefonaktiebolaget L M Ericsson (Publ) | Broadcast as a triggering mechanism for route discovery |
| WO2005107179A1 (en) * | 2004-04-30 | 2005-11-10 | Daimlerchrysler Ag | Data communications network with a decentralized communications management |
| CN1753387A (en) * | 2004-09-26 | 2006-03-29 | 华为技术有限公司 | Method of imlementing information broadcasting in radio communication network |
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