CN103209486B - The method for processing business shared based on base-band resource and system - Google Patents
The method for processing business shared based on base-band resource and system Download PDFInfo
- Publication number
- CN103209486B CN103209486B CN201210012797.8A CN201210012797A CN103209486B CN 103209486 B CN103209486 B CN 103209486B CN 201210012797 A CN201210012797 A CN 201210012797A CN 103209486 B CN103209486 B CN 103209486B
- Authority
- CN
- China
- Prior art keywords
- baseband processing
- processing unit
- bbu
- carrier frequency
- cell carrier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a kind of method for processing business shared based on base-band resource and system, described method includes: when Base Band Unit (BBU) receives the community foundation request of the home cell that radio network controller (RNC) is sent, and is cell carrier frequencies distribution baseband processing unit resource according to the shortest principle of link resource.The present invention is when BBU receives the foundation request of the RNC community sent, in shared base-band resource, baseband processing unit resource is distributed for cell carrier frequencies according to the shortest principle of link resource, under the premise that need not roll up cost, improve the utilization rate of base-band resource, the BBU that each base-band resource is shared simultaneously all can communicate with RNC, share business burden, improve performance.
Description
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a service processing method and system based on baseband resource sharing.
Background
The connection between a base station and a Radio Network Controller (RNC) in a wireless network may use an IP method or an Asynchronous Transfer Mode (ATM). The base station mostly adopts a structure of BBU + RRU, the structure divides the base station into a baseband unit (BBU) and a Radio Remote Unit (RRU), and the connection between the base station and the RNC is realized through the BBU.
When the base station receives the cell establishment carrier frequency message of the RNC, the base station needs to allocate baseband resources for carrier frequency. The number of the baseband resources of a single station is limited, that is, the number of the supported carrier frequencies is limited, the service capability of the base station is also limited, and the utilization rate of the baseband resources is not high.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a service processing method and system based on baseband resource sharing, which can improve the utilization rate of baseband resources.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a service processing method based on baseband resource sharing comprises the following steps:
when a baseband unit (BBU) receives a cell establishment request of a local cell sent by a Radio Network Controller (RNC), the baseband unit (BBU) distributes baseband processing unit resources for cell carrier frequencies in the cell establishment request according to the shortest principle of resource links.
Wherein, the BBU allocates baseband processing unit resources to the cell carrier frequency in the cell establishment request according to the shortest resource link principle as follows:
the BBU judges whether an available baseband processing unit exists in the BBU, and when the available baseband processing unit exists in the BBU, the BBU distributes the baseband processing unit of the BBU to the cell carrier frequency;
when the available baseband processing unit does not exist, sending a cell carrier frequency baseband processing unit allocation request to a switching unit of a frame to which the cell carrier frequency baseband processing unit belongs;
the switching unit sends a cell carrier frequency baseband processing unit allocation request to other BBUs in a self frame, and returns the finally determined information of the baseband processing unit to the BBU after receiving a successful response of cell carrier frequency baseband processing unit allocation returned by the other BBUs;
when the switching unit receives a cell carrier frequency baseband processing unit allocation failure response returned by the other BBUs, sending a cell carrier frequency baseband processing unit allocation request to the switching units of other racks;
and the switching units of other racks send cell carrier frequency baseband processing unit allocation requests to the BBU in the rack of the switching units, and when receiving successful allocation response of the cell carrier frequency baseband processing units returned by the BBU of the rack of the switching units, the switching units return the information of the baseband processing units obtained by determination to the switching units, and finally the switching units determine the baseband processing units allocated for the cell carrier frequencies.
Wherein, the BBU judges whether an available baseband processing unit exists:
the BBU judges whether an available baseband processing unit exists according to a preset threshold value for providing the maximum service; and when the utilization rate of the current baseband processing unit of the BBU is greater than or equal to the threshold, no available baseband processing unit exists, and when the utilization rate of the current baseband processing unit of the BBU is less than the threshold, an available baseband processing unit exists.
Further, the method further comprises:
the BBU records the physical address information and the media surface address of the baseband processing unit allocated to the cell carrier frequency, and the BBU to which the baseband processing unit allocated to the cell carrier frequency belongs records the media surface address of the cell carrier frequency;
and the BBU returns a cell establishment response message to the RNC to complete the cell establishment process.
Further, the method further comprises:
when a user terminal initiates a service call, an RNC sends a radio link establishment request to a BBU (base band unit) to which a cell where the user terminal resides, wherein the radio link establishment request carries a cell carrier frequency for providing service for the user terminal;
and the BBU establishes a wireless link according to the stored physical address information of the baseband processing unit corresponding to the cell carrier frequency.
When the baseband processing unit resource allocated by the BBU for the cell carrier frequency carried in the radio link establishment request is a baseband processing unit of another rack, the BBU establishes a radio link according to the stored physical address information of the baseband processing unit corresponding to the cell carrier frequency:
the BBU sends a wireless link establishment request to the BBU to which the baseband processing unit belongs according to the physical address information of the baseband processing unit corresponding to the cell carrier frequency;
the BBU to which the baseband processing unit belongs establishes self media surface address and media surface address association of the BBU for the user terminal, and returns a wireless link establishment response;
and after receiving a wireless link establishment response returned by the BBU to which the baseband processing unit belongs, the BBU returns a wireless link establishment response to the RNC.
A traffic processing system based on baseband resource sharing, the system comprising: at least one rack comprising a plurality of BBUs; wherein,
and the BBU is used for distributing the baseband processing unit resources for the cell carrier frequency in the cell establishment request according to the shortest resource link principle when receiving the cell establishment request sent by the RNC.
Further, the rack further includes: a switching unit;
the BBU is specifically used for judging whether an available baseband processing unit exists, and when the available baseband processing unit exists, the BBU allocates the baseband processing unit for the cell carrier frequency; when the available baseband processing unit does not exist, sending a cell carrier frequency baseband processing unit allocation request to a switching unit of a frame to which the cell carrier frequency baseband processing unit belongs;
the switching unit of the rack to which the BBU belongs is used for sending a cell carrier frequency baseband processing unit allocation request to other BBUs in the rack of the switching unit, and returning the finally determined information of the baseband processing unit to the BBU after receiving a response of successful allocation of the cell carrier frequency baseband processing unit returned by the other BBUs; when the system comprises a plurality of racks, the system is also used for sending a cell carrier frequency baseband processing unit allocation request to the switching units of other racks when receiving a cell carrier frequency baseband processing unit allocation failure response returned by other BBUs in the rack, receiving the information of the baseband processing units returned by the switching units of other racks, and finally determining the baseband processing unit allocated for the cell carrier frequency;
and the switching units of other racks are used for sending cell carrier frequency baseband processing unit allocation requests to the BBU in the rack of the switching units, and returning the information of the baseband processing units obtained by determination to the switching units of the racks to which the BBU belongs after receiving successful response of cell carrier frequency baseband processing unit allocation returned by the BBU of the rack of the switching units.
The BBU is specifically configured to determine whether an available baseband processing unit exists according to a preset threshold value for providing the maximum service; and when the utilization rate of the current baseband processing unit of the BBU is greater than or equal to the threshold, no available baseband processing unit exists, and when the utilization rate of the current baseband processing unit of the BBU is less than the threshold, an available baseband processing unit exists.
Further, the BBU is further configured to record physical address information and a media plane address of a baseband processing unit allocated to the cell carrier frequency; and returning a cell establishment response message to the RNC to complete the cell establishment process;
and the BBU to which the baseband processing unit allocated for the cell carrier frequency belongs is used for recording the media plane address of the cell carrier frequency.
Further, the BBU is further configured to receive a radio link establishment request sent by the RNC, and establish the radio link according to the cell carrier frequency carried in the radio link establishment request and the stored physical address information of the baseband processing unit corresponding to the cell carrier frequency.
The BBU is specifically configured to send a radio link establishment request to a BBU to which the baseband processing unit belongs according to the physical address information of the baseband processing unit corresponding to the cell carrier frequency when the baseband processing unit resource allocated to the cell carrier frequency carried in the radio link establishment request is a baseband processing unit of another rack; after receiving a radio link establishment response returned by the BBU to which the baseband processing unit belongs, returning the radio link establishment response to the RNC;
and the BBU to which the baseband processing unit belongs is used for establishing the association between the self media surface address and the media surface address of the BBU for the user terminal and returning a wireless link establishment response to the BBU.
When the BBU receives the cell establishment request sent by the RNC, the invention distributes the baseband processing unit resources for the cell carrier frequency in the shared baseband resources according to the shortest principle of the resource link, improves the utilization rate of the baseband resources on the premise of not increasing a large amount of cost, and simultaneously, each BBU shared by the baseband resources can communicate with the RNC, thereby sharing the service burden and improving the performance.
Drawings
Fig. 1 is a schematic structural diagram of a chassis for implementing baseband resource sharing;
fig. 2 is a schematic diagram of an implementation flow of the service processing method based on baseband resource sharing according to the present invention;
fig. 3 is a schematic structural diagram of a service processing system based on baseband resource sharing according to the present invention.
Detailed Description
To implement baseband resource sharing, the baseband resource sharing may be implemented by a rack networking scheme as shown in fig. 1, where fig. 1 is illustrated by a structure of one rack, and as shown in fig. 1, one rack may include a plurality of BBUs and one switching unit, each BBU communicates with the switching unit, and is connected by the switching unit to form a rack with a large capacity, where the capacity of the rack is equal to the sum of the capacities of all BBUs forming the rack, and each BBU includes a plurality of baseband processing units.
The baseband resources of all BBUs in the rack are shared through the switching unit, so that the baseband resource multiplexing capability of the whole rack is not limited to a single BBU any more. When a cell is established, baseband resources need to be allocated to carrier frequencies in the cell, and baseband resources supported by a baseband pool are increased, which means that the supported carrier frequency capability of the cell is increased and the service capability is also enhanced. The invention provides a service processing method and a system based on the baseband resource sharing.
The basic idea of the invention is as follows: when the BBU receives a cell establishment request of a local cell sent by the RNC, the baseband processing unit resources are distributed for the cell carrier frequency in the cell establishment request according to the shortest resource link principle.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings by way of examples.
Fig. 2 shows an implementation flow schematic of a service processing method based on baseband resource sharing, as shown in fig. 2, the method includes the following steps:
step 201, a BBU receives a cell establishment request of a local cell sent by an RNC;
here, each cell in wireless communication will configure a corresponding local cell on the BBU side, when the baseband resources are shared, the RNC initiates an audit request (audiorequest) message of the 3gpp ts25.433 protocol to each BBU, and after the BBU receives the audit request, the self-configured available local cell reports to the RNC through an audit response (audioconnection) message of the 3gpp ts25.433 protocol; the RNC receives the audit response of each BBU, and initiates a cell establishment process to the corresponding BBU if finding that a cell corresponding to a certain BBU local cell is not established;
step 202, the BBU allocates base band processing unit resources for the cell carrier frequency in the cell establishment request according to the shortest resource link principle;
in this step, when a BBU (local cell BBU) that receives a cell establishment request and a BBU (service BBU) that a baseband processing unit that provides service for the cell establishment request is located in are the same BBU, the length of a resource link occupied at this time is defined as intrabbpathh; when the local cell BBU and the service BBU are not the same BBU but are positioned in the same frame, the length of the occupied resource link is defined as IntraRackPath; the local cell BBU and the service BBU are not the same BBU and are positioned in different racks, and the length of the occupied resource link is defined as InterRackPath; specifically, the relationship of the resource occupied by the link resource is IntraBBUPath < IntraRackPath < InterRackPath.
Here, the local cell BBU and the service BBU are not the same BBU, but when located in the same rack, for the local cell BBU, the resource link lengths between the local cell BBU and other BBUs in the rack are all the same; the local cell BBU and the service BBU are not the same BBU and are located in different racks, and for the local cell BBU, the length of resource links between the local cell BBU and the BBUs of the different racks is the same.
In this step, the BBU allocating, according to the shortest resource link principle, baseband processing unit resources to the cell carrier frequency in the cell establishment request specifically includes:
the BBU judges whether an available baseband processing unit exists in the BBU, and when the available baseband processing unit exists in the BBU, the BBU distributes the baseband processing unit of the BBU to the cell carrier frequency;
when the available baseband processing unit does not exist, sending a cell carrier frequency baseband processing unit allocation request to a switching unit of a frame to which the cell carrier frequency baseband processing unit belongs; the switching unit sends a cell carrier frequency baseband processing unit allocation request to other BBUs in the rack of the switching unit, and returns information of a finally determined baseband processing unit to the BBU after receiving a successful allocation response of the cell carrier frequency baseband processing unit returned by the other BBUs.
Here, the specific steps of the BBU determining whether there is an available baseband processing unit are: the BBU judges whether an available baseband processing unit exists according to a preset threshold value for providing the maximum service; and when the utilization rate of the current baseband processing unit of the BBU is greater than or equal to the threshold, no available baseband processing unit exists, and when the utilization rate of the current baseband processing unit of the BBU is less than the threshold, an available baseband processing unit exists. If the threshold value is set to 0.75, when the currently utilized baseband processing unit of the BBU accounts for 75% or more of the total number of the basic processing units, no available baseband processing unit currently exists in the BBU.
Further, after the switching unit sends a cell carrier frequency baseband processing unit allocation request to other BBUs in its own chassis, the method further includes: when the switching unit receives a cell carrier frequency baseband processing unit allocation failure response returned by the other BBUs, sending a cell carrier frequency baseband processing unit allocation request to the switching unit of the other rack shared by baseband resources;
the switching units of other racks send cell carrier frequency baseband processing unit allocation requests to the BBU in the rack of the switching units, and when cell carrier frequency baseband processing unit allocation success responses returned by the BBU of the rack of the switching units are received, the information of the baseband processing units obtained by determination is returned to the switching units, and the switching units finally determine the baseband processing units allocated for the cell carrier frequencies; here, after the switching units of other racks receive successful responses of the allocation of the cell carrier frequency baseband processing units returned by the BBUs of the multiple self racks, the switching units of the racks which receive the cell establishment request BBUs select the baseband processing unit of the BBU which receives the first response and return the information of the determined baseband processing unit to the switching unit of the rack to which the received cell establishment request BBU belongs; and when the switching unit receives the information of the baseband processing units returned by the switching units of the other racks, the switching unit selects the baseband processing unit selected by the switching unit which receives the first response to allocate to the cell carrier frequency, and returns the information of the determined baseband processing unit to the BBU which receives the cell establishment request for storage.
After the cell is successfully established, the BBU can provide services, that is, the user can access. As long as there is a baseband processing unit providing service for the cell of the BBU, the service provided by the BBU does not depend on the operation status of other BBUs, such as a certain BBU and RNC broken link.
Further, the method further comprises: the BBU records the physical address information and the media surface address of the baseband processing unit allocated to the cell carrier frequency, and the BBU to which the baseband processing unit allocated to the cell carrier frequency belongs records the media surface address of the cell carrier frequency;
and the BBU returns a cell establishment response message to the RNC to complete the cell establishment process.
Further, when a user terminal initiates a service call, the RNC sends a radio link establishment request to the BBU to which the cell where the user terminal resides, where the radio link establishment request carries a cell carrier frequency for providing a service to the user terminal;
and the BBU establishes a wireless link according to the stored physical address information of the baseband processing unit corresponding to the cell carrier frequency.
When the baseband processing unit resource allocated by the BBU for the cell carrier frequency carried in the radio link establishment request is a baseband processing unit of another rack, the BBU establishes a radio link according to the stored physical address information of the baseband processing unit corresponding to the cell carrier frequency: the BBU sends a wireless link establishment request to the BBU to which the baseband processing unit belongs according to the physical address information of the baseband processing unit corresponding to the cell carrier frequency; the BBU to which the baseband processing unit belongs establishes self media surface address and media surface address association of the BBU for the user terminal, and returns a wireless link establishment response; and after receiving a wireless link establishment response returned by the BBU to which the baseband processing unit belongs, the BBU returns a wireless link establishment response to the RNC.
The control plane flow accessed by the user is still processed by the BBU where the cell accessed by the user is located, and a media plane channel from the baseband processing unit to the RNC is established. After the user access is successful, the media surface data directly goes through the media surface channel.
Fig. 3 shows the structure of a service processing system based on baseband resource sharing, the system includes at least one rack, such as the system shown in fig. 3, which is a system including 2 racks: a rack1 and a rack2 are illustrated, the rack including a plurality of BBUs; here, it is assumed that the BBU that receives the cell establishment request is BBU11 in fig. 3;
the BBU11 is configured to, when receiving a cell establishment request sent by an RNC, allocate a baseband processing unit resource to a cell carrier frequency in the cell establishment request according to a principle that a resource link is shortest.
The BBU11 is specifically configured to determine whether there is an available baseband processing unit, and allocate the baseband processing unit to the cell carrier frequency when there is an available baseband processing unit.
Further, the rack further includes: a switching unit;
the BBU11 is specifically configured to determine whether there is an available baseband processing unit, and send a cell carrier frequency baseband processing unit allocation request to the switching unit 1 of the rack (i.e., rack1) to which the BBU belongs when there is no available baseband processing unit;
the switching unit 1 is configured to send a cell carrier frequency baseband processing unit allocation request to other BBUs of the rack1, and return information of a finally determined baseband processing unit to the BBU11 after receiving a successful response of cell carrier frequency baseband processing unit allocation returned by the other BBUs.
The BBU11 is specifically configured to determine whether there is an available baseband processing unit according to a preset threshold value for providing the maximum service; when the current baseband processing unit utilization rate of the BBU11 is greater than or equal to the threshold, no available baseband processing unit exists, and when the current baseband processing unit utilization rate of the BBU11 is less than the threshold, no available baseband processing unit exists.
Further, when the system includes a plurality of racks, fig. 3 illustrates that the system includes 2 racks, where the switching unit 1 is further configured to send a cell carrier frequency baseband processing unit allocation request to the switching unit 2 of the rack2, receive information of a baseband processing unit returned by the switching unit 2, and finally determine a baseband processing unit allocated for a cell carrier frequency when receiving a cell carrier frequency baseband processing unit allocation failure response returned by other BBUs in the rack 1;
the switching unit 2 is configured to send a cell carrier frequency baseband processing unit allocation request to the BBU in the rack2, and when receiving a successful response of cell carrier frequency baseband processing unit allocation returned by the BBU of the rack2, return the information of the baseband processing unit obtained by the determination to the switching unit 1.
Further, the BBU11 is further configured to record physical address information and a media plane address of a baseband processing unit allocated to the cell carrier frequency; and returning a cell establishment response message to the RNC to complete the cell establishment process;
the BBU to which the baseband processing unit allocated for the cell carrier frequency belongs is used for recording the media plane address where the cell carrier frequency is located,
Further, the BBU11 is further configured to receive a radio link establishment request sent by the RNC, and establish a radio link according to a cell carrier frequency carried in the radio link establishment request and the stored physical address information of the baseband processing unit corresponding to the cell carrier frequency,
The BBU11 is specifically configured to, when a baseband processing unit resource allocated to a cell carrier frequency carried in the radio link establishment request is a baseband processing unit of another rack, send a radio link establishment request to a BBU to which the baseband processing unit belongs according to baseband processing unit address information corresponding to the cell carrier frequency; after receiving a radio link establishment response returned by the BBU to which the baseband processing unit belongs, returning the radio link establishment response to the RNC;
the BBU to which the baseband processing unit belongs is configured to establish a media plane address of the BBU itself and a media plane address association of the BBU for the user terminal, and return a radio link establishment response to the BBU 11.
In addition, in practical use of the above system, it is common to employ a scale including two racks, each rack including 2 BBUs and one switching unit.
The following further describes the service processing method and system based on baseband resource sharing by using specific embodiments, where the system scale is configured as follows:
2 RACKs, RACK 1(RACK1) and RACK 2(RACK2), respectively;
RACK1 includes 1 SWITCH unit (SWITCH1) and 2 BBUs: BBU11 and BBU 12;
RACK2 includes 1 SWITCH unit (SWITCH2) and 3 BBUs: BBU21, BBU22, BBU 23;
the BBUs have the same baseband processing capability and comprise 32 baseband processing units (BP); here, when calculating the carrier frequencies supported by a single BBU, it is assumed that 1 carrier frequency needs to consume 1 BP, the threshold value for providing the maximum service preset for this BBU is 0.75, and the carrier frequencies supported by a single BBU are: BP count threshold/BP count consumed per carrier frequency 32 × 0.75/1 × 24. When each cell supports 6 carrier frequencies, each BBU needs to support 4 cells, and 6 carrier frequencies are configured under each cell, so that the total service capability of the system is 20 cells and 120 carrier frequencies.
Each cell needs to configure a corresponding local cell (local cell, LCELL) at the BBU side, and all local cells in the above system are configured as:
the local cell of BBU11 is configured to: LCELL-11-1, LCELL-11-2, LCELL-11-3, LCELL-11-4;
the local cell of BBU12 is configured to: LCELL-12-1, LCELL-12-2, LCELL-12-3, LCELL-12-4;
the local cell of BBU21 is configured to: LCELL-21-1, LCELL-21-2, LCELL-21-3, LCELL-21-4;
the local cell of BBU22 is configured to: LCELL-22-1, LCELL-22-2, LCELL-22-3 and LCELL-22-4;
the local cell configuration of BBU23 is LCELL-23-1, LCELL-23-2, LCELL-23-3, LCELL-23-4.
The RNC initiates an AUDITREST message of a 3GPPTS25.433 protocol to each BBU, and after the BBU receives the AUDITRESTEST message, the BBU reports the local cell configured by the BBU to the RNC through the AUDITRESTSPONSE message of the 3GPPTS25.433 protocol, and for the configuration, the local cells to be reported by each BBU are as follows:
local cell reported by BBU 11: LCELL-11-1, LCELL-11-2, LCELL-11-3, LCELL-11-4;
local cell reported by BBU 12: LCELL-12-1, LCELL-12-2, LCELL-12-3, LCELL-12-4;
local cell reported by BBU 21: LCELL-21-1, LCELL-21-2, LCELL-21-3, LCELL-21-4;
local cell reported by BBU 22: LCELL-22-1, LCELL-22-2, LCELL-22-3 and LCELL-22-4;
local cell reported by BBU 23: LCELL-23-1, LCELL-23-2, LCELL-23-3 and LCELL-23-4.
When the RNC receives the audit response of each BBU and finds that the cell corresponding to the local cell is not established yet, the RNC initiates a cell establishment process to the corresponding BBU, taking LCELL-11-1 of BBU11 as an example below:
step one, RNC initiates a cell establishment request (CELLSETUPREQUEST) message of a 3GPPTS25.433 protocol to BBU11, the message carries an LCELL-11-1 mark, and the established carrier frequencies are CA-11-1-1 and CA-11-1-2;
step two, the BBU11 allocates baseband processing unit resources for CA-11-1-1 and CA-11-1-2 of LCELL-11-1 respectively according to the shortest resource link principle;
specifically, the process of allocating the baseband processing unit resource to CA-11-1-1 is as follows:
BBU11 finds itself if there is an available baseband processing unit, and when there is only one available baseband processing unit left on BBU11, allocates the available baseband processing unit to CA-11-1-1.
The process of allocating the baseband processing unit resources for CA-11-1-2 is as follows:
the BBU11 searches whether an available baseband processing unit exists, and when no available baseband processing unit exists, the BBU11 sends a cell carrier frequency baseband processing unit allocation request to the SWITCH 1;
the SWITCH1 sends a cell carrier frequency baseband processing unit allocation request to the BBU12 which is in the same RACK RACK1 with the BBU 11;
the BBU12 judges whether an available baseband processing unit exists, and when no available baseband processing unit exists, a cell carrier frequency baseband processing unit allocation failure response is sent to the SWITCH 1;
after receiving the response of the allocation failure of the cell carrier frequency baseband processing unit, the SWITCH1 sends a cell carrier frequency baseband processing unit allocation request to the SWITCH2 of RACK 2;
the SWITCH2 sends the allocation request of the cell carrier frequency baseband processing unit to the BBU21, BBU22 and BBU23 which are positioned in the RACK2 of the same RACK;
when the BBU21 and the BBU22 respectively find that available baseband processing units exist, cell carrier frequency baseband processing unit allocation success responses are respectively sent to the SWITCH 2; when finding that no baseband processing unit is available, the BBU23 sends a cell carrier frequency baseband processing unit allocation failure response to the SWITCH 2;
the SWITCH2 selects the baseband processing unit of BBU21, and sends a response of successful allocation of the cell carrier frequency baseband processing unit to the SWITCH1, and the SWITCH1 sends the information of the baseband processing unit to the BBU 11.
Step three, the BBU11 records the physical address and the media surface address of the baseband processing unit distributed by the CA-11-1-1 and the CA-11-1-2, wherein the physical address comprises the rack mark where the distributed baseband processing unit is located, the BBU mark and the slot position address
BBU11 and BBU21 record the media surface addresses of the machine frames where the home cells of CA-11-1-1 and CA-11-1-2 are located, respectively.
After successful establishment, BBU11 replies to the RNC with a cell establishment response (CELLSETUPRESPONSE) message of the 3gpp ts25.433 protocol, which may be sent before BBU11 and/or BBU21 records.
Step four, after the RNC and the BBU11 complete the establishment of the common channel and the updating process of the system broadcast message, the CA-11-1-1 and CA-11-1-2 of the LCELL-11-1 can provide service for the user. .
When the user terminal resides in LCELL-11-1 and the user initiates a service call flow:
step five, the RNC selects CA-11-1-2 of LCELL-11-1 as a service frequency point of the user terminal, initiates a radio link establishment request (RADIOLINKSETUPREQUEST) message of a 3GPPTS25.433 protocol to BBU11, and carries carrier frequency CA-11-1-2 serving the user terminal.
Step six, the BBU11 obtains the physical address of the BP according to the rack identifier, BBU identifier and slot address of the BP to which the CA-11-1-2 belongs, which are recorded in the step three, initiates a wireless link establishment request to the corresponding BP with the BBU21 slot address as the baseband board 21-1, carries the media plane address of the BBU11, and simultaneously establishes the association between the media plane address of the BBU11 and the media plane address of the processing CA-11-1-2 baseband processing unit for the user by the BBU 11.
Step seven, the baseband processing unit of the BBU21 baseband board 21-1 establishes the association of the media plane address of the baseband processing unit and the media plane address of the BBU11 for the user terminal, and responds a radio link establishment response to the BBU 11.
Step eight, BBU11 responds to RNC with a radio link setup response (radio link setup response) message of 3gpp ts25.433 protocol.
Step nine, the media plane data of the user terminal can be directly interacted by the baseband processing unit of the BBU21 and the RNC.
The invention obtains the total baseband resource capacity according to the baseband processing unit resource capacity supported by the single BBU shared by the baseband resources. And planning carrier frequencies supported by the BBU on the basis of the total capacity of the BBU baseband resources. And planning a local cell supported by the BBU according to the carrier frequency requirement supported by each cell, and configuring the cell corresponding to the RNC side. From the RNC, BBUs shared by baseband resources are used as a plurality of logical base stations, that is, a plurality of BBUs, and the relationship between the plurality of BBUs and the RNC is configured in advance through the IUB interface. And reporting a local cell supported by the single BBU to the RNC, sending a cell establishment request to the BBU by the RNC, and distributing baseband processing unit resources for the cell carrier frequency by the BBU. When the base band processing unit is distributed to the cell carrier frequency, the available base band processing unit is found from the shared base band resource and stored; the baseband processing unit can be located on the local BBU or on other baseband resources sharing and normal operation BBUs.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. A service processing method based on baseband resource sharing is characterized in that the method comprises the following steps:
when a baseband unit BBU receives a cell establishment request of a local cell sent by a radio network controller RNC, baseband processing unit resources are distributed for cell carrier frequencies in the cell establishment request according to a resource link shortest principle;
the method for the BBU to distribute the baseband processing unit resource for the cell carrier frequency in the cell establishment request according to the shortest resource link principle comprises the following steps:
the BBU judges whether an available baseband processing unit exists in the BBU, and when the available baseband processing unit exists in the BBU, the BBU distributes the baseband processing unit of the BBU to the cell carrier frequency;
when the available baseband processing unit does not exist, sending a cell carrier frequency baseband processing unit allocation request to a switching unit of a frame to which the cell carrier frequency baseband processing unit belongs;
the switching unit sends a cell carrier frequency baseband processing unit allocation request to other BBUs in a self frame, and returns the finally determined information of the baseband processing unit to the BBU after receiving a successful response of cell carrier frequency baseband processing unit allocation returned by the other BBUs;
when the switching unit receives a cell carrier frequency baseband processing unit allocation failure response returned by the other BBUs, sending a cell carrier frequency baseband processing unit allocation request to the switching units of other racks;
and the switching units of other racks send cell carrier frequency baseband processing unit allocation requests to the BBU in the rack of the switching units, and when receiving successful allocation response of the cell carrier frequency baseband processing units returned by the BBU of the rack of the switching units, the switching units return the information of the baseband processing units obtained by determination to the switching units, and finally the switching units determine the baseband processing units allocated for the cell carrier frequencies.
2. The method of claim 1, wherein the BBU determining whether there is an available baseband processing unit is:
the BBU judges whether an available baseband processing unit exists according to a preset threshold value for providing the maximum service; and when the utilization rate of the current baseband processing unit of the BBU is greater than or equal to the threshold, no available baseband processing unit exists, and when the utilization rate of the current baseband processing unit of the BBU is less than the threshold, an available baseband processing unit exists.
3. The method of claim 1, further comprising:
the BBU records the physical address information and the media surface address of the baseband processing unit allocated to the cell carrier frequency, and the BBU to which the baseband processing unit allocated to the cell carrier frequency belongs records the media surface address of the cell carrier frequency;
and the BBU returns a cell establishment response message to the RNC to complete the cell establishment process.
4. The method of claim 3, further comprising:
when a user terminal initiates a service call, an RNC sends a radio link establishment request to a BBU (base band unit) to which a cell where the user terminal resides, wherein the radio link establishment request carries a cell carrier frequency for providing service for the user terminal;
and the BBU establishes a wireless link according to the stored physical address information of the baseband processing unit corresponding to the cell carrier frequency.
5. The method according to claim 4, wherein when the baseband processing unit resource allocated by the BBU for the cell carrier frequency carried in the radio link establishment request is a baseband processing unit of another rack, the BBU establishes a radio link according to the stored physical address information of the baseband processing unit corresponding to the cell carrier frequency by:
the BBU sends a wireless link establishment request to the BBU to which the baseband processing unit belongs according to the physical address information of the baseband processing unit corresponding to the cell carrier frequency;
the BBU to which the baseband processing unit belongs establishes self media surface address and media surface address association of the BBU for the user terminal, and returns a wireless link establishment response;
and after receiving a wireless link establishment response returned by the BBU to which the baseband processing unit belongs, the BBU returns a wireless link establishment response to the RNC.
6. A service processing system based on baseband resource sharing, the system comprising: at least one rack comprising a plurality of BBUs; wherein,
the BBU is used for distributing baseband processing unit resources for the cell carrier frequency in the cell establishment request according to the shortest principle of a resource link when receiving the cell establishment request sent by the RNC;
the frame further includes: a switching unit;
the BBU is specifically used for judging whether an available baseband processing unit exists, and when the available baseband processing unit exists, the BBU allocates the baseband processing unit for the cell carrier frequency; when the available baseband processing unit does not exist, sending a cell carrier frequency baseband processing unit allocation request to a switching unit of a frame to which the cell carrier frequency baseband processing unit belongs;
the switching unit of the rack to which the BBU belongs is used for sending a cell carrier frequency baseband processing unit allocation request to other BBUs in the rack of the switching unit, and returning the finally determined information of the baseband processing unit to the BBU after receiving a response of successful allocation of the cell carrier frequency baseband processing unit returned by the other BBUs; when the system comprises a plurality of racks, the system is also used for sending a cell carrier frequency baseband processing unit allocation request to the switching units of other racks when receiving a cell carrier frequency baseband processing unit allocation failure response returned by other BBUs in the rack, receiving the information of the baseband processing units returned by the switching units of other racks, and finally determining the baseband processing unit allocated for the cell carrier frequency;
and the switching units of other racks are used for sending cell carrier frequency baseband processing unit allocation requests to the BBU in the rack of the switching units, and returning the information of the baseband processing units obtained by determination to the switching units of the racks to which the BBU belongs after receiving successful response of cell carrier frequency baseband processing unit allocation returned by the BBU of the rack of the switching units.
7. The system according to claim 6, wherein the BBU is specifically configured to determine whether there is an available baseband processing unit according to a preset threshold value for providing the maximum service; and when the utilization rate of the current baseband processing unit of the BBU is greater than or equal to the threshold, no available baseband processing unit exists, and when the utilization rate of the current baseband processing unit of the BBU is less than the threshold, an available baseband processing unit exists.
8. The system of claim 6, wherein the BBU is further configured to record physical address information and a media plane address of a baseband processing unit allocated for the cell carrier frequency; and returning a cell establishment response message to the RNC to complete the cell establishment process;
and the BBU to which the baseband processing unit allocated for the cell carrier frequency belongs is used for recording the media plane address of the cell carrier frequency.
9. The system of claim 8, wherein the BBU is further configured to receive a radio link establishment request sent by the RNC, and establish the radio link according to a cell carrier frequency carried in the radio link establishment request and the stored physical address information of the baseband processing unit corresponding to the cell carrier frequency.
10. The system according to claim 9, wherein the BBU is specifically configured to, when a baseband processing unit resource allocated to a cell carrier frequency carried in the radio link setup request is a baseband processing unit of another rack, send a radio link setup request to a BBU to which the baseband processing unit belongs according to baseband processing unit physical address information corresponding to the cell carrier frequency; after receiving a radio link establishment response returned by the BBU to which the baseband processing unit belongs, returning the radio link establishment response to the RNC;
and the BBU to which the baseband processing unit belongs is used for establishing the association between the self media surface address and the media surface address of the BBU for the user terminal and returning a wireless link establishment response to the BBU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210012797.8A CN103209486B (en) | 2012-01-16 | 2012-01-16 | The method for processing business shared based on base-band resource and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210012797.8A CN103209486B (en) | 2012-01-16 | 2012-01-16 | The method for processing business shared based on base-band resource and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103209486A CN103209486A (en) | 2013-07-17 |
| CN103209486B true CN103209486B (en) | 2016-07-06 |
Family
ID=48756533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210012797.8A Expired - Fee Related CN103209486B (en) | 2012-01-16 | 2012-01-16 | The method for processing business shared based on base-band resource and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103209486B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101159933A (en) * | 2005-05-19 | 2008-04-09 | 华为技术有限公司 | Split base station system and its networking method and baseband unit |
| CN101394647A (en) * | 2007-09-21 | 2009-03-25 | 大唐移动通信设备有限公司 | Method and system for realizing cell networking |
| CN101541041A (en) * | 2009-04-23 | 2009-09-23 | 华为技术有限公司 | Method for sharing load, device and system thereof |
-
2012
- 2012-01-16 CN CN201210012797.8A patent/CN103209486B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101159933A (en) * | 2005-05-19 | 2008-04-09 | 华为技术有限公司 | Split base station system and its networking method and baseband unit |
| CN101394647A (en) * | 2007-09-21 | 2009-03-25 | 大唐移动通信设备有限公司 | Method and system for realizing cell networking |
| CN101541041A (en) * | 2009-04-23 | 2009-09-23 | 华为技术有限公司 | Method for sharing load, device and system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103209486A (en) | 2013-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US12302189B2 (en) | Registration management method for terminal accessing 5G network on non-3GPP access | |
| JP6307523B2 (en) | Communication device and method | |
| TWI387375B (en) | Method for configuring paging resource to mobile station with multiple user identities and resource configuration device thereof | |
| US10477512B2 (en) | Telecommunications apparatus and methods for paging mobile terminals in a wireless communication system | |
| US8498653B2 (en) | Load sharing method, device, and system | |
| US10624057B2 (en) | Telecommunications apparatus and methods | |
| CA2153871C (en) | Apparatuses and mobile stations for providing packet data communication in digital tdma cellular systems | |
| JP6346198B2 (en) | Mobile communication base station and method for allocating resources outside a virtual carrier based on UE capabilities | |
| US20130157676A1 (en) | Control method for device-to-device communication | |
| CN109845312B (en) | Data transmission method and device, computer equipment and system | |
| US8102819B2 (en) | Method of paging and late-entry after establishing group call | |
| CN104768122A (en) | Data sharing method, device and terminal based on terminal direct communication | |
| CN107734590A (en) | A kind of phone user's sub-clustering communication means, system and eNodeB, terminal | |
| CN110022223B (en) | Network slice configuration method, first network element and second network element | |
| CN110087335A (en) | A kind of data transmission system and method polymerizeing a variety of Radio Links | |
| CN1227922C (en) | Special network reconfiguration | |
| CN103096473A (en) | Base band resource sharing method and system of high-capacity base band pool | |
| CN103220111A (en) | Method and equipment for allocating common channel carrier resources | |
| EP2179520A1 (en) | System and method for setting up p2p communication group in cellular system, and p2p communication system and method using p2p communication group | |
| CN101998651B (en) | Downlink resource allocation method and system | |
| CN103209486B (en) | The method for processing business shared based on base-band resource and system | |
| CN102572843A (en) | Communication resource distributing method and equipment | |
| CN100362894C (en) | Method of carrier frequency resource configuration and carrier frequency state information report | |
| CN104053185A (en) | Base station distribution method, device and equipment | |
| KR20220026710A (en) | Method, base station and user device for executing dynamic spectrum sharing between heterogeneous networks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20190116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |