CN107770742A - Data transmission method and network control unit - Google Patents
Data transmission method and network control unit Download PDFInfo
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- CN107770742A CN107770742A CN201610682312.4A CN201610682312A CN107770742A CN 107770742 A CN107770742 A CN 107770742A CN 201610682312 A CN201610682312 A CN 201610682312A CN 107770742 A CN107770742 A CN 107770742A
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- access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
- H04B7/026—Co-operative diversity, e.g. using fixed or mobile stations as relays
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention proposes a kind of data transmission method and network control unit, is related to wireless communication field.Wherein, a kind of radio data transmission method of the invention includes：Application data is obtained from macro base station；Data format by data transformation into extension access point, obtains format conversion data, wherein, terminal is connected with extension access point, and extension access point includes small base station, insertion point of radio local network, next generation mobile communication access point；Format conversion data is sent to terminal by extending access point.Pass through such method, the application data that macro base station to be issued is sent to terminal after format conversion by other extension access points, other data are issued by macro base station, so as to cooperate with the work of macro base station and other extension access points in wireless side, the burden of macro base station is reduced, improves the utilization rate of network.
Description
Technical field
The present invention relates to wireless communication field, particularly a kind of data transmission method and network control unit.
Background technology
Wireless communication system experienced swift and violent development from the first generation to forth generation, and real network is progressively constituted and included
The complicated present situation of a variety of wireless standards, spectrum utilization and coverage, at the same time, most of intelligent terminal on the market
Support multiple types simultaneously.In the 5th third-generation mobile communication epoch, a variety of wireless access technologys will long-term co-existence, same operator
Possess multiple networks simultaneously, run and safeguard that multiple networks make operator bear huge expense pressure, multiple networks it is whole
Body utilization ratio is but often unsatisfactory.
Prior art includes：
1st, LTE (Long Term Evolution, the Long Term Evolution) switching based on core net between other access networks.
The technology only supports the single-link from some access network to transmit, and transmission rate is low, and time delay is high, and can not be according to Real-time Channel shape
Resource between the multiple networks of condition flexible utilization.
2nd, dual link and LTE and WLAN (Wireless Local Area Networks, WLAN) polymerization.
The technology only supports the polymerization of two networks, can not be applicable for the simultaneous scene of multi-access network, it is impossible to dynamic coordinate
The resource of multiple wireless access networks.
The content of the invention
The scheme to be cooperated it is an object of the present invention to propose a kind of different access networks in wireless side.
According to an aspect of the present invention, a kind of radio data transmission method is proposed, including：Obtained from macro base station and apply number
According to；Data format by data transformation into extension access point, obtains format conversion data, wherein, terminal accesses with extension
Point connection, extension access point include small base station, insertion point of radio local network and/or next generation mobile communication access point；Pass through
Format conversion data is sent to terminal by extension access point.
Alternatively, in addition to：The selection target extension access point from extension access point；Data transformation is connect into extension
The data format of access point, obtaining format conversion data includes：Data format by data transformation into target extension access point,
Obtain format conversion data；Format conversion data is sent into terminal by extending access point includes：Extended and accessed by target
Format conversion data is sent to terminal by point.
Alternatively, in addition to：The feedback information of each extension access point is obtained, feedback information includes data transfer shape
State, channel status, load condition and/or interference strength；Selection target extension access point includes from extension access point：According to anti-
Feedforward information is based on predetermined policy dynamic select target extension access point from extension access point.
Alternatively, predetermined policy includes：Prioritizing selection idle condition, channel quality are high, load less and/or interference strength is low
Extension access point as target extend access point.
Alternatively, in addition to：It is terminal selection extension access from the non-macro base station access point of covering terminal position
Point；Terminal is controlled to be connected with extension access point by macro base station.
Alternatively, in addition to：Cache the application data obtained from macro base station；By data transformation into extension access point
Data format, obtaining format conversion data includes：Data format by the data transformation of caching into extension access point, is obtained
Format conversion data.
By such method, the application data that macro base station to be issued is after format conversion by other extension access points
Terminal is sent to, other data are issued by macro base station, so as to cooperate with macro base station and other extension access points in wireless side
Work, the burden of macro base station is reduced, improve the utilization rate of network.
According to another aspect of the present invention, a kind of network control unit is proposed, including：Data acquisition module, for from
Macro base station obtains application data；Format converting module, for the data format by data transformation into extension access point, obtain
Format conversion data, wherein, terminal is connected with extension access point, and extension access point includes small base station, WLAN accesses
Point and/or next generation mobile communication access point；Data distribution module, for being sent format conversion data by extending access point
To terminal.
Alternatively, in addition to：Target extend access point selection module, for from extension access point in selection target extension connect
Access point；Format converting module is used for the data format that data transformation is extended to access point into target, obtains form conversion number
According to；Data distribution module is used to format conversion data is sent into terminal by target extension access point.
Alternatively, in addition to：Feedback information acquisition module, for obtaining the feedback information of each extension access point, feedback
Information includes data transmission state, channel status, load condition and/or interference strength；Target extends access point selection module
Access point is extended for being based on predetermined policy dynamic select target from extension access point according to feedback information.
Alternatively, predetermined policy includes：Prioritizing selection idle condition, channel quality are high, load less and/or interference strength is low
Extension access point as target extend access point.
Alternatively, in addition to：Access point selection module, for from the non-macro base station access point of covering terminal position
Extension access point is selected for terminal；Access point link block, for controlling terminal to be connected with extension access point by macro base station.
Alternatively, in addition to：Data cache module, for caching the application data obtained from macro base station；Form modulus of conversion
Block is used for the data format into extension access point by the data transformation of caching, obtains format conversion data.
Such device application data to be issued macro base station is sent after format conversion by other extension access points
To terminal, other data are issued by macro base station, so as to cooperate with the work of macro base station and other extension access points in wireless side,
The burden of macro base station is reduced, improves the utilization rate of network.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of one embodiment of the data transmission method of the present invention.
Fig. 2 is the flow chart of another embodiment of the data transmission method of the present invention.
Fig. 3 is the flow chart of another embodiment of the data transmission method of the present invention.
Fig. 4 is the protocol stack architecture figure of one embodiment of the data transmission method of the present invention.
Fig. 5 is the schematic diagram of one embodiment of the network control unit of the present invention.
Fig. 6 is the schematic diagram of another embodiment of the network control unit of the present invention.
Fig. 7 is the schematic diagram of another embodiment of the network control unit of the present invention.
Fig. 8 is the schematic diagram using one embodiment of the network architecture after network control unit of the invention.
Fig. 9 is the schematic diagram using another embodiment of the network architecture after network control unit of the invention.
Embodiment
Below by drawings and examples, technical scheme is described in further detail.
The flow chart of one embodiment of the data transmission method of the present invention is as shown in Figure 1.
In a step 101, application data is obtained from macro base station.Application data can be except control in macro base station downlink transfer
Other data outside data processed.
In a step 102, the data format by data transformation into extension access point, obtains format conversion data, its
In, terminal is connected with extension access point, and extension access point can connect including small base station, WLAN access points, next generation mobile communication
Access point, next generation mobile communication access point can be the 5th third-generation mobile communication access point, or as technology develops its following
His mobile communication access point etc..
In step 103, format conversion data is sent to terminal by extending access point.
By such method, the application data that macro base station to be issued is after format conversion by other extension access points
Terminal is sent to, other data are issued by macro base station, so as to cooperate with macro base station and other extension access points in wireless side
Work, the burden of macro base station is reduced, improve the utilization rate of network.
In one embodiment, can be using the LTE macro base stations that system is stable and research is ripe as anchor point access network
(anchor RAT), control information and basic covering are provided for terminal, by the small base stations of LTE, the small base station of 5G high frequencies and wlan network
As enhancing access network (boost RAT), extra access capability is provided for terminal.Terminal can access connecing for 2 and the above simultaneously
Enter network, and can be seamless smooth mobile between each access network.By such method, control data can be realized and apply number
According to transmission respectively, realize existing network, and the wireless net side polymerization of next generation network, realize the collaboration work of disparate networks
Make, balance application, improve the utilization rate of network.
In one embodiment, terminal region is the coverage of the access point of multiple non-macro base stations, therefore terminal
There can be multiple extension access points, wherein one or more extension access points can be selected to issue data to terminal.The present invention's
The flow chart of another embodiment of data transmission method is as shown in Figure 2.
In step 201, application data is obtained from macro base station.Application data can with macro base station downlink transfer except control
Other data outside data.
In step 202, the selection target extension access point from extension access point.In one embodiment, can basis
Loading condition, rate behavior etc. carry out the selection of target extension access point.
In step 203, data transformation is extended to the data format of access point into target, obtains form conversion number
According to.
In step 204, access point is extended by target and format conversion data is sent to terminal.
By such method, extension access point can be selected to obtain target extension access point, so as to reality
The now data balancing between each network, be advantageous to maintain network stabilization, and increase network utilization, improve Consumer's Experience.
In one embodiment, feedback information can be obtained from each extension access point, can include number in feedback information
According to transmission state, channel status, load condition, interference strength etc., target extension access point can be carried out according to feedback information
Selection.
By such method, it can ensure to grasp extension access dotted state in real time, obtain correct target extension access
Point, data balancing and network stabilization between each network are further maintained, is further ensured that Consumer's Experience.
In one embodiment, prioritizing selection idle condition, channel quality height, load can lack in access point is extended
And/or the low extension access point of interference strength extends access point as target, so as to ensure the quality of data transfer, reduce more
The burden of busy network, improve Consumer's Experience.
In one embodiment, feedback information can also be obtained from macro base station, if the data transmission state of macro base station, channel
State, load condition, interference strength etc. can issue application data better than access point is extended by macro base station, it is achieved thereby that
Collaborative work between macro base station and other access points, advantageously in realizing Network Load Balance.
The flow chart of another embodiment of a part for the data transmission method of the present invention is as shown in Figure 3.
In step 301, it is terminal selection extension access point from the non-macro base station access point of covering terminal position.
In one embodiment, access point can be extended according to selections such as user configuration, user rights, multiple extension accesses can be selected
Point, terminal can be connected simultaneously with macro base station and multiple extension access points.
In step 302, terminal is controlled to be connected with extension access point by macro base station.In one embodiment, due to grand
Interacting for control information between terminal and core net is responsible in base station, therefore, can issue control letter to terminal by macro base station end
Breath, realize the connection with each extension access point.
By such method, the connection between terminal and one or more extension access points can be realized, so as to help
In realizing collaborative work of multiple access points in wireless side, the equilibrium, stably of network is maintained, improves the utilization rate of network.
In one embodiment, the application data obtained from macro base station can be first cached, then the application data of caching is entered
Row format is changed, and obtains format conversion data.By such method, loss of data can be effectively avoided, is guaranteed data security.
The protocol stack architecture figure of one embodiment of the data transmission method of the present invention is as shown in figure 4, same position can be with
Covered simultaneously by LTE macro base stations, the small base stations of LTE, WLAN, 5G high bands communication network element.LTE macro base stations can include
PDCP (Packet Data Convergence Protocol, PDCP) layer, RLC (Radio Link
Control, radio link layer control protocol) layer, MAC (Media Access Control, medium access control) layers and thing
Manage layer.MRAC (Multi-Rat Adaption and Control, multi-access network is adaptive and controlled entity) can be from grand base
PDCP (Packet Data Convergence Protocol, the PDCP) layer stood obtains PDCP PDU
(Protocol Data Unit, protocol Data Unit) packet simultaneously caches.MRAC expands for PDCP PDU data bags selection target
Access point is opened up, such as the small base stations of LTE, PDCP PDU data bags are changed into transformat corresponding to the small base station rlc layers of LTE, and turn
The small base stations of LTE are issued, terminal is sent to by the small base stations of LTE.If selecting other access points to extend access point for target, change into
The agreement of corresponding access point respective layer and forwarding.MRAC can also be collected and be handled the feedback information of each access point, according to anti-
Feedforward information carries out the flow control and resource management of corresponding access point.
By such method, can be improved on the basis of existing network deployment to realize the nothing of each access network
Line side polymerize, and is advantageous to expand application.
The schematic diagram of one embodiment of the network control unit of the present invention is as shown in Figure 5.Wherein, data acquisition module
501 can obtain application data from macro base station.Application data can be its in addition to control data in macro base station downlink transfer
His data；Format converting module 502 can obtain form conversion number by data transformation into the data format for extending access point
According to, wherein, terminal be connected with extension access point, and extension access point can be including small base station, insertion point of radio local network, next
Third-generation mobile communication access point, next generation mobile communication access point can be the 5th third-generation mobile communication access point, or with technology
Develop other following mobile communication access points etc.；Form can be changed number by data distribution module 503 by extending access point
According to being sent to terminal.
Such device application data to be issued macro base station is sent after format conversion by other extension access points
To terminal, other data are issued by macro base station, so as to cooperate with the work of macro base station and other extension access points in wireless side,
The burden of macro base station is reduced, improves the utilization rate of network.
In one embodiment, terminal region is the coverage of the access point of multiple non-macro base stations, therefore terminal
There can be multiple extension access points, one of extension access point can be selected to issue data to terminal.The network control of the present invention
The schematic diagram of another embodiment of device processed is as shown in Figure 6.Wherein, data acquisition module 601, the and of format converting module 602
The 26S Proteasome Structure and Function of data distribution module 603 is similar to Fig. 5 embodiment.Network control unit also includes target extension access
Point selection module 604, selection target it can extend access point from extension access point.In one embodiment, can be according to negative
Load situation, rate behavior etc. carry out the selection of target extension access point.Format converting module 602 can be by data transformation into mesh
The data format of mark extension access point, obtain format conversion data and be sent to target extension access through data distribution module 603
Point, relays to terminal.
Such device can be selected extension access point to obtain target extension access point, so as to realize each net
Data balancing between network, be advantageous to maintain network stabilization, and increase network utilization, ensure Consumer's Experience.
In one embodiment, feedback information acquisition module can also be included, extend access point selection module 604 with target
It is connected.Feedback information acquisition module can obtain feedback information from each extension access point, can include number in feedback information
According to transmission state, channel status, load condition and/or interference strength etc..Target extension access point selection module 604 can basis
Feedback information carries out the selection of target extension access point.
Such device can ensure to grasp extension access dotted state in real time, obtain correct target extension access point, enter
One step maintains the data balancing and network stabilization between each network, further improves Consumer's Experience.
In one embodiment, target extension access point selection module 604 can in access point extend prioritizing selection sky
Not busy state, channel quality are high, load less, the extension access point that interference strength is low extends access point as target, so as to ensure number
According to the quality of transmission, the burden of more busy network is reduced, improves Consumer's Experience.
In one embodiment, feedback information acquisition module can also obtain feedback information from macro base station, if macro base station
Better than extension access point, data distribution module 603 can also for data transmission state, channel status, load condition, interference strength etc.
Application data is issued by macro base station, it is achieved thereby that the collaborative work between macro base station and other access points, advantageously in
Realize Network Load Balance.
The schematic diagram of another embodiment of the network control unit of the present invention is as shown in Figure 7.Wherein, data acquisition module
701st, format converting module 702, data distribution module 703 and target extension access point selection module 704 26S Proteasome Structure and Function with
It is similar in Fig. 6 embodiment.Network control unit also includes data cache module 705, turns with data acquisition module 701 and form
Mold changing block 702 is connected.The application data that data cache module 705 can be obtained with data cached acquisition module 701 from macro base station,
Enter row format conversion to the application data of caching by format converting module 702 again, obtain format conversion data.Such device energy
It is enough effectively to avoid loss of data, guarantee data security.
Schematic diagram using one embodiment of the network architecture after the network control unit of the present invention is as shown in Figure 8.LTE
Macro base station is that UE (User Equipment, user terminal) provides control information and basic covering as anchor point access network；Terminal
In the coverage of the small base stations of LTE and the small base station of 5G high frequencies, the small base stations of LTE and the small base station of 5G high frequencies are accessed as extension
Point provides extra access capability for UE.When terminal location changes, it is possible to achieve the smooth migration of access point, e.g., work as end
When LTE small base station coverage areas are left at end, the connection with the small base stations of LTE is disconnected；When terminal reaches the small base station of 5G high frequencies and WLAN
During access point overlapping area, while base station small with 5G high frequencies and WLAN access points are connected.
In such network, the application data that macro base station to be issued can be accessed after format conversion by other extensions
Point is sent to terminal, and other data are issued by macro base station, so as to cooperate with macro base station and other extension access points in wireless side
Work, realize existing network, and the wireless net side polymerization of next generation network, reduce the burden of macro base station, improve net
The utilization rate of network.
Schematic diagram using another embodiment of the network architecture after the network control unit of the present invention is as shown in Figure 9.
The larger LTE macro base stations of a coverage in network system be present, a 5G high frequency be present in the coverage of the macro base station
Small base station and a WLAN access point.LTE macro base stations provide control information and basic covering as anchor point access network, thus UE1 by
LTE macro base stations provide data, services.UE2 simultaneously in the coverage of LTE macro base stations and the small base station of 5G high frequencies, therefore UE2 by
LTE macro base stations and the small base station of 5G high frequencies provide data, services.UE3 is located at LTE macro base stations, the small base station of 5G high frequencies and WLAN simultaneously
In AP (Access Point, access point) coverage, therefore UE3 is carried by LTE macro base stations, the small base station of 5G high frequencies and WLAN AP
For data, services.
In such network, connecing for the suitable offer data, services of terminal selection can be selected according to network coverage status
Access point, data, services are provided by macro base station in the position of only macro base station covering, the position that the covering of a variety of access networks be present by
Other access points provide data, services, so as to while realizing wireless net side polymerization, reducing the burden of macro base station, ensure only
Service also can be smoothly provided the user in the case of having macro base station covering, improves the robustness of system, improves user's body
Test.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
The embodiment of the present invention can be modified or equivalent substitution is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical scheme, it all should cover among the claimed technical scheme scope of the present invention.
Claims (12)
- A kind of 1. data transmission method, it is characterised in that including：Application data is obtained from macro base station；By the data transformation into extension access point data format, obtain format conversion data, wherein, terminal with it is described Access point connection is extended, the extension access point includes small base station, insertion point of radio local network and/or next generation mobile communication Access point；The format conversion data is sent to by terminal by the extension access point.
- 2. according to the method for claim 1, it is characterised in that also include：The selection target extension access point from the extension access point；The data format by the data transformation into extension access point, obtaining format conversion data includes：By described in Data transformation obtains format conversion data into the data format of target extension access point；It is described the format conversion data is sent to terminal to include by the extension access point：Connect by target extension The format conversion data is sent to terminal by access point.
- 3. according to the method for claim 2, it is characterised in that also include：Obtain the feedback information of each extension access point, the feedback information include data transmission state, channel status, Load condition and/or interference strength；The selection target extension access point from the extension access point includes：Predetermined policy dynamic select target extension access point from the extension access point is based on according to the feedback information.
- 4. according to the method for claim 3, it is characterised in that the predetermined policy includes：Prioritizing selection idle condition, channel quality are high, load is less and/or described in the low extension access point of interference strength is used as Target extends access point.
- 5. according to the method for claim 1, it is characterised in that also include：It is the terminal selection extension access point from the non-macro base station access point for covering the terminal position；The terminal is controlled to be connected with the extension access point by macro base station.
- 6. according to the method for claim 1, it is characterised in that also include：Cache the application data obtained from the macro base station；The data format by the data transformation into extension access point, obtaining format conversion data includes：Data format by the data transformation of caching into the extension access point, obtains format conversion data.
- A kind of 7. network control unit, it is characterised in that including：Data acquisition module, for obtaining application data from macro base station；Format converting module, for the data format by the data transformation into extension access point, obtain form conversion number According to, wherein, terminal is connected with the extension access point, and the extension access point includes small base station, insertion point of radio local network And/or next generation mobile communication access point；Data distribution module, for the format conversion data to be sent into terminal by the extension access point.
- 8. device according to claim 7, it is characterised in that also include：Target extends access point selection module, for the selection target extension access point from the extension access point；The format converting module is used for the data format that the data transformation is extended to access point into the target, obtains Format conversion data；The data distribution module is used to the format conversion data is sent into terminal by target extension access point.
- 9. device according to claim 8, it is characterised in that also include：Feedback information acquisition module, for obtaining the feedback information of each extension access point, the feedback information includes Data transmission state, channel status, load condition and/or interference strength；The target extension access point selection module is used to be based on predetermined policy from the extension access according to the feedback information Dynamic select target extends access point in point.
- 10. device according to claim 9, it is characterised in that the predetermined policy includes：Prioritizing selection idle condition, channel quality are high, load is less and/or described in the low extension access point of interference strength is used as Target extends access point.
- 11. device according to claim 7, it is characterised in that also include：Access point selection module, for being the terminal selection from the non-macro base station access point for covering the terminal position Extend access point；Access point link block, for controlling the terminal to be connected with the extension access point by macro base station.
- 12. device according to claim 7, it is characterised in that also include：Data cache module, for caching the application data obtained from the macro base station；The format converting module is used for the data format into the extension access point by the data transformation of caching, obtains Take format conversion data.
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