CN105451272A - Data interaction method, building baseband unit, radio remote unit and R-Hub - Google Patents
Data interaction method, building baseband unit, radio remote unit and R-Hub Download PDFInfo
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- CN105451272A CN105451272A CN201410476157.1A CN201410476157A CN105451272A CN 105451272 A CN105451272 A CN 105451272A CN 201410476157 A CN201410476157 A CN 201410476157A CN 105451272 A CN105451272 A CN 105451272A
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Abstract
The invention discloses a data interaction method, a building baseband unit, a radio remote unit and R-Hubs. In a downlink direction, the building baseband unit or the R-Hub adds an outer layer MAC header on an outer layer of a downlink original message to be transmitted, and transmits the message to a next-level R-Hub or radio remote unit; in an uplink direction, the R-Hub or the radio remote unit adds an outer layer MAC header on an outer layer of an uplink original message to be transmitted, and transmits the message to an upper-level R-Hub or building baseband unit; and the added outer layer MAC header at least comprises a destination MAC address and a source MAC address. It is obvious that the data interaction method, the building baseband unit, the radio remote unit and the R-Hub provided by the invention can achieve transparent transmission of relevant data messages through the additionally added outer layer MAC header when passing through a public network during networking, so as to ensure the security and isolation of data when passing through the public network, namely, the public network only plays a role of data transmission tunnel during data transmission process.
Description
Technical field
The present invention relates to the communications field, be specifically related to a kind of data interactive method, baseband processing unit, Remote Radio Unit and TU Trunk Unit.
Background technology
Traditional distributed base station system adopts baseband processing unit (BBU:BuildingBasebandUnite)+Remote Radio Unit (RRU:RadioRemoteUnit), shown in Figure 1.Wherein BBU has been responsible for Base-Band Processing, RRU be responsible for the process of up-downgoing radiofrequency signal, with the interactive function of UE, pass through Fiber connection between BBU and RRU.When RRU is used for in-door covering, this networking mode has two obvious shortcomings: one is that the optical fiber of high cost causes the CAPEX of operator relatively high, and also seldom there is fiber deployment indoor; Two is the disposal abilities wasting BBU, and a light mouth of current BBU can provide the data capacity of 9.8304Gbps usually, and the RRU capacity requirement of in-door covering is limited, and in-door covering also seldom has the scene of cascade in addition, can cause the waste of BBU resource like this.So the framework of a kind of baseband processing unit for in-door covering (BBU:BuildingBasebandUnite)+TU Trunk Unit (R-Hub)+Remote Radio Unit (RRU:RadioRemoteUnit) is suggested, shown in Figure 2.Wherein R-Hub is in the descending route and the forwarding that complete base band data, the restructuring of the up RRU of completing data and uploading.R-Hub can connect multiple RRU, R-Hub also can other R-Hub of cascade, to ensure making full use of of networking coverage and BBU resource.By CAT5/5E/6 twisted pair line connection between R-Hub and RRU, the flexibility of in-door covering can be improved like this and obtain higher cost performance.In addition, also can be set to compatible former BBU+RRU framework, now use Fiber connection between BBU and R-Hub, such RRU can select to carry out traditional networking by optical fiber and BBU, also can add that R-Hub forms BBU+R-Hub+RRU networking by CAT5/5E/6 twisted-pair feeder.In BBU+R-Hub+RRU networking, in order to complete remote covering, sometimes need to utilize existing public network transmitting user data.In public network, how to ensure fail safe and the isolation of provider customer's data, making user data transmission of " transparent " when passing through public network, is need key problems-solving.
Summary of the invention
The main technical problem to be solved in the present invention is, provides a kind of data interactive method, baseband processing unit, Remote Radio Unit and TU Trunk Unit, solves how to ensure that data are in the fail safe transmitted by public network and isolation.
For solving the problems of the technologies described above, the invention provides a kind of data interactive method, comprising:
At down direction, baseband processing unit or TU Trunk Unit are added outer MAC head at descending original message skin to be sent and are obtained descending transmission message, and the descending transmission message obtained is sent to next stage TU Trunk Unit or Remote Radio Unit; Described baseband processing unit or TU Trunk Unit are connected with described next stage TU Trunk Unit or Remote Radio Unit by electric mouth;
At up direction, TU Trunk Unit or Remote Radio Unit add outer MAC head at the skin of up original message to be sent and obtain up transmission message, and the up transmission message obtained is sent to upper level TU Trunk Unit or baseband processing unit; Described TU Trunk Unit or Remote Radio Unit to be connected with described upper level TU Trunk Unit by electric mouth or baseband processing unit connects;
Described outer MAC head at least comprises target MAC (Media Access Control) address and source MAC.
In an embodiment of the present invention, described outer MAC head also comprises MAC type.
In an embodiment of the present invention, described up original message comprises uplink business data message and/or up privately owned message; Described descending original message comprises downlink service data message and/or descending privately owned message.
In an embodiment of the present invention, for TU Trunk Unit, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the electric mouth of TU Trunk Unit, baseband processing unit or the Remote Radio Unit that mouth electric with it is connected; For Remote Radio Unit, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the TU Trunk Unit electricity mouth that mouth electric with it is connected;
For baseband processing unit, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the electric mouth of the TU Trunk Unit that is connected of mouth electric with it or Remote Radio Unit.
In an embodiment of the present invention, at down direction, after described next stage TU Trunk Unit or Remote Radio Unit receive described descending transmission message, parsing is carried out to it and obtains descending original message, and need to be sent to the TU Trunk Unit of next stage or Remote Radio Unit and with the TU Trunk Unit of next stage or Remote Radio Unit for being connected by electric mouth time, again, after the descending original message skin obtained increases new outer MAC head, next stage TU Trunk Unit or Remote Radio Unit is sent it to;
At up direction, after described upper level TU Trunk Unit receives mutual up transmission message, parsing is carried out to it and obtains up original message, and need to be sent to the TU Trunk Unit of upper level or baseband processing unit and with the TU Trunk Unit of upper level or baseband processing unit for being connected by electric mouth time, again, after the up original message skin obtained increases new outer MAC head, upper level TU Trunk Unit or baseband processing unit is sent it to.
In an embodiment of the present invention, after described next stage TU Trunk Unit or Remote Radio Unit receive described descending transmission message, need to be sent to the TU Trunk Unit of next stage or Remote Radio Unit and with the TU Trunk Unit of next stage or Remote Radio Unit for being connected by light mouth time, directly described descending original message is sent to TU Trunk Unit or the Remote Radio Unit of next stage;
At up direction, after described upper level TU Trunk Unit receives mutual up transmission message, need to be sent to the TU Trunk Unit of upper level or baseband processing unit and with the TU Trunk Unit of upper level or baseband processing unit for being connected by light mouth time, directly described up original message is sent to TU Trunk Unit or the baseband processing unit of upper level.
In order to solve the problem, present invention also offers a kind of baseband processing unit, comprise first interface module and first interface processing module;
First interface module is used for being connected by electric mouth with the TU Trunk Unit of next stage or Remote Radio Unit;
First interface processing module is used at down direction, adds outer MAC head and obtains descending transmission message, the descending transmission message obtained is sent to described next stage TU Trunk Unit or Remote Radio Unit at descending original message skin to be sent; Described outer MAC head at least comprises target MAC (Media Access Control) address and source MAC.
In an embodiment of the present invention, for baseband processing unit, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the electric mouth of the TU Trunk Unit that is connected of mouth electric with it or Remote Radio Unit.
In order to solve the problem, present invention also offers a kind of TU Trunk Unit, comprise the second interface module and the second interface processing module;
Second interface module is used for being connected by electric mouth with the TU Trunk Unit of next stage or Remote Radio Unit; And for being connected by electric mouth with upper level TU Trunk Unit or baseband processing unit;
Second interface processing module is used at down direction, adds outer MAC head and obtains descending transmission message, the descending transmission message obtained is sent to described next stage TU Trunk Unit or Remote Radio Unit at descending original message skin to be sent; And at up direction, add outer MAC head at the skin of up original message to be sent and obtain up transmission message, the up transmission message obtained is sent to upper level TU Trunk Unit or baseband processing unit; Described outer MAC head at least comprises target MAC (Media Access Control) address and source MAC.
In an embodiment of the present invention, for TU Trunk Unit, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the electric mouth of TU Trunk Unit, baseband processing unit or the Remote Radio Unit that mouth electric with it is connected.
In order to solve the problem, present invention also offers a kind of Remote Radio Unit, comprise the 3rd interface module and the 3rd interface processing module;
3rd interface module is used for being connected by electric mouth with the TU Trunk Unit of upper level or baseband processing unit;
3rd interface processing module is used at up direction, adds outer MAC head and obtains up transmission message, the up transmission message obtained is sent to upper level TU Trunk Unit or baseband processing unit at the skin of up original message to be sent; Described outer MAC head at least comprises target MAC (Media Access Control) address and source MAC.
In an embodiment of the present invention, for Remote Radio Unit, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the TU Trunk Unit electricity mouth that mouth electric with it is connected.
The invention has the beneficial effects as follows:
Data interactive method provided by the invention, baseband processing unit, Remote Radio Unit and TU Trunk Unit, at down direction, after descending original message skin to be sent is added outer MAC head by baseband processing unit or TU Trunk Unit, send to next stage TU Trunk Unit or Remote Radio Unit; At up direction, send message after the skin of up original message to be sent is added outer MAC head by TU Trunk Unit or Remote Radio Unit and send to upper level TU Trunk Unit or baseband processing unit; The outer MAC head added at least comprises target MAC (Media Access Control) address and source MAC.Visible, scheme provided by the invention, when networking has through public network, the transmission of related data message can realize transparent transmission by the extra outer MAC head increased, fail safe during to ensure that data pass through public network and isolation, namely public network only need play the transmission tunneling of data in data transmission procedure.
Accompanying drawing explanation
Fig. 1 is existing BBU+RRU networking structure schematic diagram;
Fig. 2 is existing BBU+R-Hub+RRU networking structure schematic diagram;
Fig. 3 the first networking structure schematic diagram for providing in the embodiment of the present invention three;
The second networking structure schematic diagram of Fig. 4 for providing in the embodiment of the present invention three;
Fig. 5 the third networking structure schematic diagram for providing in the embodiment of the present invention three;
The four kind networking structure schematic diagram of Fig. 6 for providing in the embodiment of the present invention three;
The five kind networking structure schematic diagram of Fig. 7 for providing in the embodiment of the present invention three;
The six kind networking structure schematic diagram of Fig. 8 for providing in the embodiment of the present invention three;
Fig. 9 is for providing the message structure schematic diagram after encapsulating outer MAC head in the embodiment of the present invention three.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
Embodiment one:
" transparent " data interactive method that the present embodiment provides, in data transmission procedure, extra increase is used for the addressing between R-Hub and RRU, R-Hub and R-Hub, BBU and R-Hub and BBU and RRU; Then respectively the initial data of uplink and downlink is being encapsulated and decapsulation through in process, to ensure that data are in the fail safe of passing through in public network situation and isolation.Concrete, at down direction, BBU or R-Hub adds outer MAC head at descending original message skin to be sent and obtains descending transmission message, and the descending transmission message obtained is sent to next stage R-Hub or RRU; Wherein BBU or R-Hub is connected with R-Hub or RRU of next stage by electric mouth; At up direction, R-Hub or RRU adds outer MAC head at the skin of up original message to be sent and obtains up transmission message, and the up transmission message obtained is sent to upper level R-Hub or BBU; Wherein, R-Hub or RRU to be connected with the R-Hub of upper level or BBU connects by electric mouth.In the present embodiment, the outer MAC head increased at least comprises target MAC (Media Access Control) address and source MAC.Concrete, this outer MAC head can comprise elementary field and extended field, and wherein target MAC (Media Access Control) address and source MAC are arranged in elementary field, and also can comprise MAC type in this elementary field.Extended field then can be arranged according to actual needs, such as, can be used as IP head, for building the tunneled network based on layer three.
In the present embodiment, the MAC head definition of interpolation can refer to the IEEE802.3 ethernet frame format of standard, and the length of set elementary field is 12 bytes.The length of extended field then defines as required.
In the present embodiment, the message carrying out transmitting comprises the privately owned message between business datum message for realizing business and R-Hub and RRU.Wherein, the business datum message that down direction transmits is called downlink service data message, and the business datum message of up direction transmission is called uplink business data message; The privately owned message that down direction transmits is called descending privately owned message, and the privately owned message of up direction transmission is called up privately owned message.Corresponding, the up original message in the present embodiment comprises uplink business data message and/or up privately owned message; Descending original message comprises downlink service data message and/or descending privately owned message.
Privately owned message in the present embodiment specifically can comprise MAC Address self study message, time delay message and Ethernet OAM message etc., and different message MACtype is different;
MAC Address self study message is broadcasting packet, R-Hub and RRU obtains the MAC Address of the other side when link setup by broadcasting this message to learn;
Time delay message is unicast message, for the Forwarding Delay of R-Hub, issues RRU by message, and RRU is used for calculating and compensating uplink downlink time delay;
Ethernet OAM message is unicast message, after R-Hub and RRU link setup, regularly mutually sends link keep-alive and status message separately, for monitoring and the maintenance of link.
In the present embodiment, for R-Hub, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the electric mouth of R-Hub, BBU or RRU that mouth electric with it is connected;
For RRU, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the R-Hub electricity mouth that mouth electric with it is connected;
For BBU, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the electric mouth of R-Hub or RRU that mouth electric with it is connected.
Target MAC (Media Access Control) address in the present embodiment can be obtained by study in link setup process.
At down direction, after R-Hub or RRU of next stage receives descending transmission message, parsing is carried out to it and obtains descending original message, the MAC type that specifically can comprise according to the outer MAC head in this message when resolving judges the type of message, then peeling outer layer MAC head, carries out follow-up process according to type of message; R-Hub or RRU of next stage receive descending transmission message and resolve obtain descending original message after, need to be sent to R-Hub or RRU of next stage and with R-Hub or RRU of next stage for being connected by electric mouth time, again, after the descending original message skin obtained increases new outer MAC head (the new MAC head added comprises new source MAC and target MAC (Media Access Control) address), next stage R-Hub or RRU is sent it to.R-Hub or RRU of next stage receive descending transmission message and resolve obtain descending original message after, need to be sent to R-Hub or RRU of next stage and with R-Hub or RRU of next stage for being connected by light mouth time, directly descending original message is sent to R-Hub or RRU of next stage; Do not need again to add new outer MAC head.
At up direction, after the R-Hub of upper level receives mutual up transmission message, parsing is carried out to it and obtains up original message, the MAC type that specifically can comprise according to the outer MAC head in this message when resolving judges the type of message, then peeling outer layer MAC head, carries out follow-up process according to type of message.The R-Hub of upper level receives mutual up transmission message and after parsing obtains up original message, need to be sent to R-Hub or BBU of upper level and with R-Hub or BBU of upper level for being connected by electric mouth time, again, after the up original message skin obtained increases new outer MAC head, upper level R-Hub or BBU is sent it to.The R-Hub of upper level receives mutual up transmission message and after parsing obtains up original message, need to be sent to R-Hub or BBU of upper level and with R-Hub or BBU of upper level for being connected by light mouth time, directly up original message is sent to R-Hub or BBU of upper level.
The above-mentioned data interaction scheme that the present embodiment provides is mainly used in the transfer of data of the group network system by electric mouth networking.Such as be applicable in various forms of BBU+R-Hub+RRU networking.
Embodiment two:
The BBU that the present embodiment provides comprises first interface module and first interface processing module; Wherein first interface module is used for being connected by electric mouth with R-Hub or RRU of next stage.May need to pass through public network between BBU and R-Hub connected by electric mouth or BBU; First interface processing module is used at down direction, adds outer MAC head and obtains descending transmission message, the descending transmission message obtained is sent to next stage R-Hub or RRU at descending original message skin to be sent; The outer MAC head added at least comprises target MAC (Media Access Control) address and source MAC.For BBU, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the electric mouth of R-Hub or RRU that mouth electric with it is connected.Can be obtained by study in link setup process for target MAC (Media Access Control) address BBU
The R-Hub that the present embodiment provides comprises the second interface module and the second interface processing module;
Second interface module is used for being connected by electric mouth with R-Hub or RRU of next stage; And for being connected by electric mouth with R-Hub or BBU of upper level; Second interface processing module is used at down direction, adds outer MAC head and obtains descending transmission message, the descending transmission message obtained is sent to next stage R-Hub or RRU at descending original message skin to be sent; And at up direction, add outer MAC head at the skin of up original message to be sent and obtain up transmission message, the up transmission message obtained is sent to upper level R-Hub or BBU; The outer MAC head added also at least comprises target MAC (Media Access Control) address and source MAC; For R-Hub, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the electric mouth of R-Hub, BBU or RRU that mouth electric with it is connected.Can be obtained by study in link setup process for target MAC (Media Access Control) address R-Hub.
R-Hub in the present embodiment also comprises routing module, descending R-Hub or RRU for the data of BBU or R-Hub of upper level being routed to next stage.Up BBU or R-Hub for the data of RRU or R-Hub from next stage being routed to upper level.
The RRU that the present embodiment provides comprises the 3rd interface module and the 3rd interface processing module;
3rd interface module is used for being connected by electric mouth with R-Hub or BBU of upper level; 3rd interface processing module is used at up direction, adds outer MAC head and obtains up transmission message, the up transmission message obtained is sent to upper level R-Hub or BBU at the skin of up original message to be sent; The outer MAC head added also at least comprises target MAC (Media Access Control) address and source MAC.For RRU, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the TU Trunk Unit electricity mouth that mouth electric with it is connected.Can be obtained by study in link setup process for target MAC (Media Access Control) address RRU.
In the present embodiment, the message carrying out transmitting comprises the privately owned message between business datum message for realizing business and R-Hub and RRU.Wherein, the business datum message that down direction transmits is called downlink service data message, and the business datum message of up direction transmission is called uplink business data message; The privately owned message that down direction transmits is called descending privately owned message, and the privately owned message of up direction transmission is called up privately owned message.Corresponding, the up original message in the present embodiment comprises uplink business data message and/or up privately owned message; Descending original message comprises downlink service data message and/or descending privately owned message.
Privately owned message in the present embodiment specifically can comprise MAC Address self study message, time delay message and Ethernet OAM message etc., and different message MACtype is different;
MAC Address self study message is broadcasting packet, R-Hub and RRU obtains the MAC Address of the other side when link setup by broadcasting this message to learn;
Time delay message is unicast message, for the Forwarding Delay of R-Hub, issues RRU by message, and RRU is used for calculating and compensating uplink downlink time delay;
Ethernet OAM message is unicast message, after R-Hub and RRU link setup, regularly mutually sends link keep-alive and status message separately, for monitoring and the maintenance of link.
Embodiment three:
The present embodiment, in conjunction with several concrete networking mode, does further exemplary illustration to the present invention.But should be understood that, the present embodiment is also not only confined to following several typical networking mode.
Shown in Figure 3, networking shown in this figure comprises baseband processing unit (BBU), the first TU Trunk Unit (R-Hub), public network and the second TU Trunk Unit (the 2nd R-Hub) and Remote Radio Unit (RRU), and wherein a R-Hub passes through public network by electric mouth and is connected with the 2nd R-Hub; 2nd R-Hub is connected with RRU by electric mouth; BBU is then connected with a R-Hub by light mouth.
In the networking shown in Fig. 3, BBU is connected by light mouth with a R-Hub, therefore does not need additionally to increase outer MAC head at the mutual of uplink and downlink data between BBU and a R-Hub.At down direction, after a R-Hub receives the descending original message (this message is generally service message) of BBU transmission, after the SerDes and solution frame of its light mouth, isolate signaling and I/Q data; Then a R-Hub judges that this message need be transmitted to the 2nd R-Hub of next stage, and it is connected by electric mouth with the 2nd R-Hub, and a R-Hub passes through public network after adding MAC head to the skin of the descending original message that BBU sends and issues the 2nd R-Hub.2nd R-Hub carries out parsing according to its MAC type to it and obtains descending original message after receiving the descending transmission message of a R-Hub transmission; Then the 2nd R-Hub judges that this message need be transmitted to the RRU of next stage, and it is connected by electric mouth with RRU, 2nd R-Hub issues RRU after adding new outer MAC head to the skin of resolving the descending original message obtained, and the new outer MAC head added comprises new source MAC and destination-mac address.At up direction, RRU adds outer MAC head at the skin of up original message to be sent and obtains up transmission message, then sends it to the 2nd R-Hub be attached thereto by electric mouth; 2nd R-Hub carries out parsing according to its type to it and obtains up original message after receiving the up transmission message of RRU transmission; 2nd R-Hub judges this up original message to be sent to a R-Hub of the upper level be attached thereto by electric mouth, for this up original message again add outer MAC head (comprising new source MAC and target MAC (Media Access Control) address) after pass through public network and send to a R-Hub; One R-Hub carries out parsing according to its type to it and obtains up original message after receiving the up transmission message of the 2nd R-Hub transmission; One R-Hub judges this up original message to be sent to the BBU be attached thereto by light mouth, sends to BBU after the up original message framing directly parsing obtained through the SerDes of light mouth.Visible, the outer MAC head by additional when the message sent in the present embodiment passes through public network ensures its fail safe and isolation.
Also extra outer MAC head is added to ensure fail safe and isolation by such scheme for the mutual of the privately owned message between R-Hub and R-Hub and R-Hub and RRU, does not repeat them here.
Shown in Figure 4, networking baseband processing unit (BBU) shown in this figure, the first TU Trunk Unit (R-Hub), with second TU Trunk Unit (the 2nd R-Hub) of a R-Hub cascade, public network and the 3rd TU Trunk Unit (the 3rd R-Hub) and RRU, wherein a R-Hub is connected with the two the first R-Hub by electric mouth, and the 2nd R-Hub passes through public network with the 3rd R-Hub by electric mouth and is connected; 3rd R-Hub is connected with RRU by electric mouth; BBU is then connected with a R-Hub by light mouth.
In the networking shown in Fig. 4, BBU is connected by light mouth with a R-Hub, therefore does not also need additionally to increase outer MAC head at the mutual of uplink and downlink data between BBU and a R-Hub.At down direction, after a R-Hub receives the descending original message (this message is generally service message) of BBU transmission, after the SerDes and solution frame of its light mouth, isolate signaling and I/Q data; Then a R-Hub judges that this message need be transmitted to the 2nd R-Hub of next stage, and it is connected by electric mouth with the 2nd R-Hub, and a R-Hub issues the 2nd R-Hub after adding MAC head to the skin of the descending original message that BBU sends.2nd R-Hub carries out parsing according to its MAC type to it and obtains descending original message after receiving the descending transmission message of a R-Hub transmission; 2nd R-Hub carries out parsing to the descending transmission message received and obtains descending original message, and judge that this message need be transmitted to the 3rd R-Hub of next stage, and it is connected by electric mouth with the 3rd R-Hub, the 3rd R-Hub passes through public network after adding MAC head to the skin of the descending original message that BBU sends and issues the 3rd R-Hub.Then the 3rd R-Hub judges that this message need be transmitted to the RRU of next stage, and it is connected by electric mouth with RRU, 3rd R-Hub issues RRU after adding new outer MAC head to the skin of resolving the descending original message obtained, and the new outer MAC head added comprises new source MAC and destination-mac address.At up direction, RRU adds outer MAC head at the skin of up original message to be sent and obtains up transmission message, is then passed through public network and sends to the 3rd R-Hub be attached thereto by electric mouth; 3rd R-Hub carries out parsing according to its type to it and obtains up original message after receiving the up transmission message of RRU transmission; 3rd R-Hub judges this up original message to be sent to the 2nd R-Hub of the upper level be attached thereto by electric mouth, for this up original message again add outer MAC head (comprising new source MAC and target MAC (Media Access Control) address) after pass through public network and send to the 2nd R-Hub; 2nd R-Hub carries out parsing according to its type to it and obtains up original message after receiving the up transmission message of the 3rd R-Hub transmission; 2nd R-Hub judges this up original message to be sent to a R-Hub of the upper level be attached thereto by electric mouth, for this up original message again add outer MAC head (comprising new source MAC and target MAC (Media Access Control) address) after send to a R-Hub; One R-Hub carries out parsing according to its type to it and obtains up original message after receiving the up transmission message of the 2nd R-Hub transmission; One R-Hub judges this up original message to be sent to the BBU be attached thereto by light mouth, sends to BBU after the up original message framing directly parsing obtained through the SerDes of light mouth.Visible, also ensure its fail safe and isolation by the outer MAC head of additional when the message sent in the present embodiment passes through public network.
Shown in Figure 5, networking shown in this figure comprises baseband processing unit (BBU), the first TU Trunk Unit (R-Hub), public network and the second TU Trunk Unit (the 2nd R-Hub) and Remote Radio Unit (RRU), and wherein a R-Hub passes through public network by electric mouth and is connected with the 2nd R-Hub; 2nd R-Hub is connected with RRU by electric mouth; BBU is also connected with a R-Hub by electric mouth.
In the networking shown in Fig. 5, BBU is connected by electric mouth with a R-Hub, therefore additionally increases outer MAC head at the mutual needs of uplink and downlink data between BBU and a R-Hub.At down direction, BBU, after the outer MAC head of descending original message outer envelope to be sent obtains descending transmission message, is issued a R-Hub; One R-Hub carries out solution according to its type to it and is separated by decantation to signaling and I/Q data after receiving the descending transmission message of BBU transmission; Then a R-Hub judges that this message need be transmitted to the 2nd R-Hub of next stage, and it is connected by electric mouth with the 2nd R-Hub, and a R-Hub passes through public network after adding MAC head to the skin of the descending original message that BBU sends and issues the 2nd R-Hub.2nd R-Hub carries out parsing according to its MAC type to it and obtains descending original message after receiving the descending transmission message of a R-Hub transmission; Then the 2nd R-Hub judges that this message need be transmitted to the RRU of next stage, and it is connected by electric mouth with RRU, 2nd R-Hub issues RRU after adding new outer MAC head to the skin of resolving the descending original message obtained, and the new outer MAC head added comprises new source MAC and destination-mac address.At up direction, RRU adds outer MAC head at the skin of up original message to be sent and obtains up transmission message, then sends it to the 2nd R-Hub be attached thereto by electric mouth; 2nd R-Hub carries out parsing according to its type to it and obtains up original message after receiving the up transmission message of RRU transmission; 2nd R-Hub judges this up original message to be sent to a R-Hub of the upper level be attached thereto by electric mouth, for this up original message again add outer MAC head (comprising new source MAC and target MAC (Media Access Control) address) after pass through public network and send to a R-Hub; One R-Hub carries out parsing according to its type to it and obtains up original message after receiving the up transmission message of the 2nd R-Hub transmission; One R-Hub judges this up original message to be sent to the BBU be attached thereto by electric mouth, sends to BBU to resolving after the up original message obtained adds outer MAC head.Visible, the outer MAC head by additional when the message sent in the present embodiment passes through public network ensures its fail safe and isolation.
Shown in Figure 6, the networking shown in this figure comprises baseband processing unit (BBU), public network, the first TU Trunk Unit (R-Hub) and Remote Radio Unit (RRU), and wherein a R-Hub is connected with RRU by electric mouth; BBU then passes through public network by electric mouth and is connected with a R-Hub.
In the networking shown in Fig. 6, BBU is passed through public network and is connected by electric mouth with a R-Hub, therefore also needs additionally to increase outer MAC head at the mutual of uplink and downlink data between BBU and a R-Hub.At down direction, BBU, after the outer MAC head of descending original message outer envelope to be sent obtains descending transmission message, passes through public network and is issued a R-Hub; One R-Hub carries out solution according to its type to it and is separated by decantation to signaling and I/Q data after receiving the descending transmission message of BBU transmission; Then a R-Hub judges that this message need be transmitted to the RRU of next stage, and it is connected by electric mouth with RRU, one R-Hub issues RRU after adding new outer MAC head to the skin of resolving the descending original message obtained, and the new outer MAC head added comprises new source MAC and destination-mac address.At up direction, RRU adds outer MAC head at the skin of up original message to be sent and obtains up transmission message, then sends it to the R-Hub be attached thereto by electric mouth; One R-Hub carries out parsing according to its type to it and obtains up original message after receiving the up transmission message of RRU transmission; One R-Hub judges this up original message to be sent to the BBU be attached thereto by electric mouth, sends to BBU to resolving after the up original message obtained adds outer MAC head.Visible, also ensure its fail safe and isolation by the outer MAC head of additional when the message sent in the present embodiment passes through public network.
Shown in Figure 7, networking shown in this figure comprises baseband processing unit (BBU), the first TU Trunk Unit (R-Hub), public network and Remote Radio Unit (RRU), and wherein a R-Hub passes through public network by electric mouth and is connected with RRU; BBU is then connected with a R-Hub by light mouth.
In the networking shown in Fig. 7, BBU is passed through public network and is connected by light mouth with a R-Hub, therefore does not need additionally to increase outer MAC head at the mutual of uplink and downlink data between BBU and a R-Hub.At down direction, descending original message to be sent is directly issued a R-Hub by BBU; After one R-Hub receives the descending transmission message of BBU transmission, after the SerDes and solution frame of its light mouth, isolate signaling and I/Q data; Then a R-Hub judges that this message need be transmitted to the RRU of next stage, and it is connected by electric mouth with RRU, one R-Hub passes through public network after adding new outer MAC head to the skin of resolving the descending original message obtained and issues RRU, and the new outer MAC head added comprises new source MAC and destination-mac address.At up direction, RRU adds outer MAC head at the skin of up original message to be sent and obtains up transmission message, then passes through public network and sends it to the R-Hub be attached thereto by electric mouth; One R-Hub carries out parsing according to its type to it and obtains up original message after receiving the up transmission message of RRU transmission; One R-Hub judges this up original message to be sent to the BBU be attached thereto by light mouth, is directly sent to BBU after the up original message framing that parsing is obtained through the SerDes of light mouth.Visible, also ensure its fail safe and isolation by the outer MAC head of additional when the message sent in the present embodiment passes through public network.
Shown in Figure 8, networking shown in this figure comprise baseband processing unit (BBU), the first TU Trunk Unit (R-Hub), with second TU Trunk Unit (the 2nd R-Hub) of a R-Hub cascade, public network and Remote Radio Unit (RRU), wherein a R-Hub is connected with the two the first R-Hub by electric mouth, and the 2nd R-Hub passes through public network with RRU by electric mouth and is connected; BBU is then connected with a R-Hub by electric mouth.
In the networking shown in Fig. 8, BBU is connected by electric mouth with a R-Hub, therefore also needs additionally to increase outer MAC head at the mutual of uplink and downlink data between BBU and a R-Hub.At down direction, BBU, after the outer MAC head of descending original message outer envelope to be sent obtains descending transmission message, is issued a R-Hub; One R-Hub carries out solution according to its type to it and is separated by decantation to signaling and I/Q data after receiving the descending transmission message of BBU transmission; Then a R-Hub judges that this message need be transmitted to the 2nd R-Hub of next stage, and it is connected by electric mouth with the 2nd R-Hub, and a R-Hub issues the 2nd R-Hub after adding MAC head to the skin of the descending original message that BBU sends.2nd R-Hub carries out parsing according to its MAC type to it and obtains descending original message after receiving the descending transmission message of a R-Hub transmission; Then the 2nd R-Hub judges that this message need be transmitted to the RRU of next stage, and it is connected by electric mouth with RRU, 2nd R-Hub passes through public network after adding new outer MAC head to the skin of resolving the descending original message obtained and issues RRU, and the new outer MAC head added comprises new source MAC and destination-mac address.At up direction, RRU adds outer MAC head at the skin of up original message to be sent and obtains up transmission message, then passes through public network and sends it to upper level the 2nd R-Hub be attached thereto by electric mouth; 2nd R-Hub carries out parsing according to its type to it and obtains up original message after receiving the up transmission message of RRU transmission; 2nd R-Hub judges this up original message to be sent to a R-Hub of the upper level be attached thereto by electric mouth, for this up original message again add outer MAC head (comprising new source MAC and target MAC (Media Access Control) address) after send to a R-Hub; One R-Hub carries out parsing according to its type to it and obtains up original message after receiving the up transmission message of the 2nd R-Hub transmission; One R-Hub judges this up original message to be sent to the BBU be attached thereto by electric mouth, sends to BBU to resolving after the up original message obtained adds outer MAC head.Visible, the outer MAC head by additional when the message sent in the present embodiment passes through public network ensures its fail safe and isolation.
In the present embodiment, the concrete form of the MAC head added is shown in Figure 9, outer MAC head is divided into elementary field and extended field, elementary field comprises object MAC, source MAC and MACtype, for each electric mouth of BBU, RRU and R-Hub, its MAC Address physically based deformation network interface card, is all that the whole world is unique, therefore can connects public network.The object MAC of electricity mouth opposite end is obtained by the MAC Address self study message study of broadcast.MACtype is for distinguishing different type of messages, at the interface processing module of BBU, R-Hub and RRU, obstructed MACtype is encapsulated respectively to dissimilar message, to facilitate process, such as signaling and I/Q data with IP protocol encapsulation, but will be noted distinguishing the MACtype that there is agreement.Extended field and field length can define as required, are such as defined as IP head, can be used for building the tunneled network based on layer three.
Above content is in conjunction with concrete execution mode further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (12)
1. a data interactive method, is characterized in that, comprising:
At down direction, baseband processing unit or TU Trunk Unit are added outer MAC head at descending original message skin to be sent and are obtained descending transmission message, and the descending transmission message obtained is sent to next stage TU Trunk Unit or Remote Radio Unit; Described baseband processing unit or TU Trunk Unit are connected with described next stage TU Trunk Unit or Remote Radio Unit by electric mouth;
At up direction, TU Trunk Unit or Remote Radio Unit add outer MAC head at the skin of up original message to be sent and obtain up transmission message, and the up transmission message obtained is sent to upper level TU Trunk Unit or baseband processing unit; Described TU Trunk Unit or Remote Radio Unit to be connected with described upper level TU Trunk Unit by electric mouth or baseband processing unit connects;
Described outer MAC head at least comprises target MAC (Media Access Control) address and source MAC.
2. data interactive method as claimed in claim 1, it is characterized in that, described outer MAC head also comprises MAC type.
3. data interactive method as claimed in claim 1, it is characterized in that, described up original message comprises uplink business data message and/or up privately owned message; Described descending original message comprises downlink service data message and/or descending privately owned message.
4. the data interaction unit as described in any one of claim 1-3, it is characterized in that, for TU Trunk Unit, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the electric mouth of TU Trunk Unit, baseband processing unit or the Remote Radio Unit that mouth electric with it is connected; For Remote Radio Unit, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the TU Trunk Unit electricity mouth that mouth electric with it is connected;
For baseband processing unit, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the electric mouth of the TU Trunk Unit that is connected of mouth electric with it or Remote Radio Unit.
5. the data interactive method as described in any one of claim 1-3, it is characterized in that, at down direction, after described next stage TU Trunk Unit or Remote Radio Unit receive described descending transmission message, parsing is carried out to it and obtains descending original message, and need to be sent to the TU Trunk Unit of next stage or Remote Radio Unit and with the TU Trunk Unit of next stage or Remote Radio Unit for being connected by electric mouth time, again, after the descending original message skin obtained increases new outer MAC head, next stage TU Trunk Unit or Remote Radio Unit is sent it to;
At up direction, after described upper level TU Trunk Unit receives mutual up transmission message, parsing is carried out to it and obtains up original message, and need to be sent to the TU Trunk Unit of upper level or baseband processing unit and with the TU Trunk Unit of upper level or baseband processing unit for being connected by electric mouth time, again, after the up original message skin obtained increases new outer MAC head, upper level TU Trunk Unit or baseband processing unit is sent it to.
6. data interactive method as claimed in claim 5, it is characterized in that, after described next stage TU Trunk Unit or Remote Radio Unit receive described descending transmission message, need to be sent to the TU Trunk Unit of next stage or Remote Radio Unit and with the TU Trunk Unit of next stage or Remote Radio Unit for being connected by light mouth time, directly described descending original message is sent to TU Trunk Unit or the Remote Radio Unit of next stage;
At up direction, after described upper level TU Trunk Unit receives mutual up transmission message, need to be sent to the TU Trunk Unit of upper level or baseband processing unit and with the TU Trunk Unit of upper level or baseband processing unit for being connected by light mouth time, directly described up original message is sent to TU Trunk Unit or the baseband processing unit of upper level.
7. a baseband processing unit, is characterized in that, comprises first interface module and first interface processing module;
First interface module is used for being connected by electric mouth with the TU Trunk Unit of next stage or Remote Radio Unit;
First interface processing module is used at down direction, adds outer MAC head and obtains descending transmission message, the descending transmission message obtained is sent to described next stage TU Trunk Unit or Remote Radio Unit at descending original message skin to be sent; Described outer MAC head at least comprises target MAC (Media Access Control) address and source MAC.
8. baseband processing unit as claimed in claim 7, it is characterized in that, for baseband processing unit, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the electric mouth of the TU Trunk Unit that is connected of mouth electric with it or Remote Radio Unit.
9. a TU Trunk Unit, is characterized in that, comprises the second interface module and the second interface processing module;
Second interface module is used for being connected by electric mouth with the TU Trunk Unit of next stage or Remote Radio Unit; And for being connected by electric mouth with upper level TU Trunk Unit or baseband processing unit;
Second interface processing module is used at down direction, adds outer MAC head and obtains descending transmission message, the descending transmission message obtained is sent to described next stage TU Trunk Unit or Remote Radio Unit at descending original message skin to be sent; And at up direction, add outer MAC head at the skin of up original message to be sent and obtain up transmission message, the up transmission message obtained is sent to upper level TU Trunk Unit or baseband processing unit; Described outer MAC head at least comprises target MAC (Media Access Control) address and source MAC.
10. TU Trunk Unit as claimed in claim 9, it is characterized in that, for TU Trunk Unit, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the electric mouth of TU Trunk Unit, baseband processing unit or the Remote Radio Unit that mouth electric with it is connected.
11. 1 kinds of Remote Radio Unit, is characterized in that, comprise the 3rd interface module and the 3rd interface processing module;
3rd interface module is used for being connected by electric mouth with the TU Trunk Unit of upper level or baseband processing unit;
3rd interface processing module is used at up direction, adds outer MAC head and obtains up transmission message, the up transmission message obtained is sent to upper level TU Trunk Unit or baseband processing unit at the skin of up original message to be sent; Described outer MAC head at least comprises target MAC (Media Access Control) address and source MAC.
12. Remote Radio Unit as claimed in claim 11, is characterized in that, for Remote Radio Unit, source MAC is the MAC Address of its electric mouth, and target MAC (Media Access Control) address is the MAC Address of the TU Trunk Unit electricity mouth that mouth electric with it is connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410476157.1A CN105451272A (en) | 2014-09-17 | 2014-09-17 | Data interaction method, building baseband unit, radio remote unit and R-Hub |
| JP2017515122A JP2017532875A (en) | 2014-09-17 | 2015-02-05 | Data exchange method, baseband processing unit, wireless remote unit and relay unit |
| PCT/CN2015/072267 WO2015131739A1 (en) | 2014-09-17 | 2015-02-05 | Data exchange method, baseband processing unit, radio frequency remote unit and relay unit |
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| CN201410476157.1A CN105451272A (en) | 2014-09-17 | 2014-09-17 | Data interaction method, building baseband unit, radio remote unit and R-Hub |
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| CN113498078A (en) * | 2020-03-20 | 2021-10-12 | 富华科精密工业（深圳）有限公司 | Data interaction method and radio remote concentrator |
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| WO2015131739A1 (en) | 2015-09-11 |
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