WO2016004599A1 - 一种数据的传输方法、系统及相关装置 - Google Patents
一种数据的传输方法、系统及相关装置 Download PDFInfo
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- WO2016004599A1 WO2016004599A1 PCT/CN2014/081972 CN2014081972W WO2016004599A1 WO 2016004599 A1 WO2016004599 A1 WO 2016004599A1 CN 2014081972 W CN2014081972 W CN 2014081972W WO 2016004599 A1 WO2016004599 A1 WO 2016004599A1
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- base station
- target base
- data
- wnto
- source base
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 166
- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000005457 optimization Methods 0.000 claims abstract description 17
- 238000005516 engineering process Methods 0.000 claims description 88
- 230000004044 response Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 16
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- 230000008569 process Effects 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 16
- 238000012545 processing Methods 0.000 description 10
- 238000004891 communication Methods 0.000 description 6
- 230000006837 decompression Effects 0.000 description 4
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- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000013144 data compression Methods 0.000 description 3
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- 238000005538 encapsulation Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/04—Protocols for data compression, e.g. ROHC
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/16—Gateway arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/12—Interfaces between hierarchically different network devices between access points and access point controllers
Definitions
- the present invention relates to the field of communications, and in particular, to a data transmission method, system, and related apparatus.
- PDCP Packet Data Convergence Protocol
- the protocol header of the data stream transmitted by the upper layer is compressed on the Packet Data Convergence Protocol (PDCP) layer of the wireless air interface protocol stack, or the user data application layer compresses itself.
- PDCP Packet Data Convergence Protocol
- the PDCP layer only compresses the header of the protocol of the user data, and can only be used for a single user. It is only applicable to the case where the protocol load is small. When the protocol load is large, the compression effect is not obvious, and the network transmission cannot be effectively optimized.
- the self-compression of the user data application layer depends on whether the application is configured with compression. When the application does not have compression configured, network transmission cannot be optimized.
- NTO network transmission optimization
- Embodiments of the present invention provide a data transmission method, system, and related apparatus, which can effectively improve data transmission efficiency in a wireless network.
- the present invention provides a data transmission method, which may include:
- the data transmission device on the network side detects whether the terminal is served by the source base station to switch to the service provided by the target base station, and determines whether the source base station and the target base station have the wireless network transmission optimized WNTO technology. ability;
- the uplink data or the downlink data is transmitted according to the determined WNTO technical capabilities of the source base station and the target base station.
- the determining, by the data transmission apparatus, whether the source base station and the target base station have the wireless network transmission optimization WNTO technical capability specifically includes: the data transmission apparatus determines that the source base station and the target base station have WNTO technical capabilities;
- the transmission of the uplink data or the downlink data includes: the data transmission device receives the uplink compressed data that is compressed by the target base station and uses the WNTO technology, and compresses the uplink compressed data.
- the data transmission device After the decompression is performed, the data transmission device sends a synchronization command message to the source base station, so that the source base station synchronizes the fingerprint database to the target base station, where the synchronization command message carries the terminal identifier and the target base station identifier;
- the downlink data After successfully synchronizing to the target base station, the downlink data is compressed by the WNTO technology; the downlink compressed data compressed by the WNTO technology is sent to the target base station, so that the target base station performs the downlink compressed data according to the fingerprint database and using the WNTO technology. unzip.
- the determining, by the data transmission apparatus, whether the source base station and the target base station have the wireless network transmission optimization WNTO technical capability specifically includes: the data transmission apparatus determines that the target base station has the WNTO technical capability, and the source base station does not Have WNTO technical capabilities;
- the transmission of the uplink data or the downlink data includes: the data transmission device receives the uplink compressed data that is compressed by the target base station and uses the WNTO technology, and compresses the uplink compressed data. After the decompression is performed, the data transmission device compresses the downlink data by using the WNTO technology, and sends the downlink compressed data compressed by the WNTO technology to the target base station, so that the target base station compresses the downlink data according to the preset fingerprint database. Decompress.
- the determining, by the data transmission apparatus, whether the source base station and the target base station have the wireless network transmission optimization WNTO technical capability specifically includes: the data transmission apparatus determines that the target base station does not have the WNTO technical capability, and the source base station Have WNTO technical capabilities;
- the transmission of the uplink data or the downlink data includes: the data transmission device directly transmits the uplink data sent by the target base station; or directly sends the downlink data to the target base station.
- the process of determining whether the source base station and the target base station have the WNTO technical capability when detecting that the terminal is served by the source base station to switch to the service provided by the target base station includes: detecting whether the terminal has a handover, and if yes, acquiring the terminal The identifier of the source base station and the identifier of the target base station; determining whether the source base station has the WNTO technical capability according to the identifier of the source base station, and determining whether the target base station has the WNTO technical capability according to the identifier of the target base station.
- the data transmission device when the source base station does not successfully synchronize the fingerprint database to the target base station, the data transmission device directly sends the uplink data sent by the target base station. Or, directly send downlink data to the target base station.
- the present invention provides a data transmission method, which may include:
- the source base station receives the synchronization command message, and the synchronization command message carries the terminal identifier and the target base station identifier; extracts the fingerprint database according to the terminal identifier, and synchronizes the fingerprint database to the target base station.
- extracting the fingerprint database according to the terminal identifier and synchronizing the fingerprint database to the target base station specifically: extracting the fingerprint database according to the terminal identifier;
- the X2 or S1 interface is synchronized to the target base station.
- the method further includes: transmitting data from the source base station to the network side
- the device sends a synchronization command response message, and the synchronization command response message includes a fingerprint database synchronization result.
- the present invention provides a data transmission apparatus, which may include:
- a detecting module configured to detect that the terminal is served by the source base station to switch to the service provided by the target base station; and a determining module, configured by the detecting module, when the detecting module detects that the terminal is served by the source base station to switch to the service provided by the target base station, determining the source base station and the target base station Whether it has WNTO technical capabilities;
- a transmission module configured to complete uplink data or downlink data transmission according to the determined WNTO technical capabilities of the source base station and the target base station.
- the transmitting module is further configured to: when the determining module determines that both the target base station and the source base station have the WNTO technical capability, the receiving target base station uses the WNTO technology to compress the uplink data.
- the data is compressed, and the uplink compressed data is decompressed and sent; or the synchronization command message is sent to the source base station, so that the source base station synchronizes the fingerprint database to the target base station, where the synchronization command message carries the terminal identifier and the target base station identifier;
- the base station successfully synchronizes the fingerprint database to the target base station the downlink data is compressed by the WNTO technology; the WNTO technology is used.
- the compressed downlink compressed data is sent to the target base station, so that the target base station decompresses the downlink compressed data according to the fingerprint database and uses the WNTO technology.
- the transmitting module is further configured to: when the determining module determines that the target base station has the WNTO technical capability, and the source base station does not have the WNTO technical capability, the receiving target base station uses the uplink data to use the WNTO
- the technology compresses the uplink compressed data, and decompresses the uplink compressed data, and sends the downlink data to the target base station by using the WNTO technology to compress the compressed data.
- the target base station decompresses the downlink compressed data according to the preset fingerprint database.
- the transmitting module is further configured to: when the determining module determines that the target base station does not have the WNTO technical capability, and the source base station has the WNTO technical capability, the uplink data sent by the target base station is directly sent. Or, directly send downlink data to the target base station.
- the determining module is further configured to: when the detecting module detects that the terminal is switched by the source base station to provide service When the service is provided by the target base station, the identifier of the terminal, the identifier of the source base station, and the identifier of the target base station are determined; determining whether the source base station has the WNTO technical capability according to the identifier of the source base station, and determining whether the target base station has the WNTO technical capability according to the identifier of the target base station. .
- the transmitting module is further configured to: when the source base station does not successfully synchronize the fingerprint database to the target base station, receive the uplink data sent by the target base station. After direct transmission; or, directly send downlink data to the target base station.
- the present invention provides a data transmission apparatus, wherein the data transmission apparatus comprises: a bus, and a processor, a memory, and an interface connected to the bus, wherein the interface is used for communicating with other network elements, and the memory is used for The storage instruction, the processor execution instruction is used to execute a data transmission method provided by the first aspect.
- the present invention provides a data transmission apparatus, which may include:
- a receiving module configured to receive a synchronization command message, where the synchronization command message carries a terminal identifier and a target base station identifier;
- the synchronization module is configured to extract a fingerprint database according to the terminal identifier, and synchronize the fingerprint database to the target base station.
- the data transmission apparatus may further include: a response module, configured to send a synchronization command response message, where the synchronization command response message includes a fingerprint database synchronization result.
- the present invention provides a data transmission system, which may include: Any data transmission device, source base station, and target base station.
- the embodiments of the present invention have the following advantages:
- the data transmission apparatus on the network side detects that the terminal is served by the source base station to switch to the service provided by the target base station, it is determined whether the source base station and the target base station have the capability of optimizing the WNTO of the wireless network transmission; according to the determined source base station and The WNTO technology capability of the target base station can complete the transmission of uplink data or downlink data, which can effectively improve the data transmission efficiency in the wireless network.
- the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some implementations of the present invention. For example, other drawings can be obtained from those skilled in the art without any creative work.
- FIG. 1 is a schematic diagram of a system architecture applicable in an embodiment of the present invention.
- FIG. 2 is a schematic flow chart of a method for transmitting data in an embodiment of the present invention
- FIG. 3a is a schematic overall diagram of a method for transmitting data in an embodiment of the present invention.
- FIG. 3b is a first schematic diagram showing a flow of a data transmission method according to an embodiment of the present invention.
- 3c is a second sub-picture showing the flow of the data transmission method in the embodiment of the present invention.
- 3d is a third sub-figure showing the flow of the data transmission method in the embodiment of the present invention.
- FIG. 4 is a schematic diagram of a fingerprint library synchronization process in a data transmission method according to an embodiment of the present invention
- FIG. 5 is a schematic structural diagram of a data transmission device according to an embodiment of the present invention
- FIG. 6 is a schematic structural diagram of a data transmission device (gateway) in an embodiment of the present invention.
- FIG. 7 is a schematic structural diagram of a data transmission device (base station) in an embodiment of the present invention.
- FIG. 8 is a schematic structural diagram of a data transmission system in an embodiment of the present invention.
- the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
- LTE Long Term Evolution
- the present invention is not only applicable to a Long Term Evolution (LTE) network, but also can use various communication standards, protocols, and Any of the technologies, such as Global System for Mobile Communications (GSM), Enhanced Data Rate for GSM Evolution (EDGE), Wi-MAX (802.16), Wideband Codes Wideband Code Division Multiple Access (WCDMA), Time Division Multiple Access (TDM A), Code Division Multiple Access (CDMA), Wi-Fi, Bluetooth, Zig-bee, 802.15, VoIP, Short Message Service (SMS) or other suitable communication protocols and technologies, including communication protocols that have not been developed or determined at the filing date of this document.
- the network in an embodiment can be the Internet, one or more intranets, a local area network (LAN), a wide area network (WLAN), a storage area network (SAN), etc., or a suitable combination thereof.
- the wireless network transmission optimization (WNTO) technology used in the embodiments of the present invention is a network transmission optimization (NTO) technology widely used in fixed networks such as the Internet and enterprise networks.
- NTO technology improves network or application performance through technologies such as traffic reduction, traffic compression, traffic caching, and protocol acceleration.
- NTO technologies include deduplication, traditional data compression (such as Lempel-Ziv series algorithms), caching mechanism, protocol acceleration (such as TCP transmission optimization, HTTP optimization, etc.).
- the above technologies can be used individually or in combination to reduce bandwidth consumption and reduce The purpose of network delay.
- the deduplication technology differs from the traditional data compression algorithm in that it only compresses data in a local range for a single user data, and can repeat a single user data on the same link over a large range or between different users. Data is compressed to achieve better compression.
- the NTO technology is deployed in pairs at both ends of the optimized network, and can process data streams in the uplink or downlink direction.
- the NTO technologies at both ends of the network include: TCP/IP protocol parsing module, TCP/IP protocol encapsulation module, data deduplication and compression module, and data decompression and restoration module.
- the specific implementation can be as follows
- TCP/IP protocol parsing module Reassemble the IP fragment of the input standard IP packet, parse the transport layer protocol, and obtain the application layer data. If the transport layer is the TCP protocol, the TCP session is reorganized;
- Data deduplication and compression module slice the application data, generate a fingerprint for the slice (digital summary of the data slice), establish an index structure of the fingerprint and the original data, generate a fingerprint database, and synchronize the fingerprint database at both ends of the network; Determine if there are duplicate data slices, replace duplicates with fingerprints Data slicing, re-encoding fingerprints and non-repeating data slices, optionally performing compression of the Lempel-Ziv series of traditional compression algorithms to generate new application data;
- Data decompression and restoration module decompress and compress the decompressed and compressed application data into original data, identify fingerprints and unrepeated data slices, query the fingerprint database, restore the original data, and Raw data slices are assembled into a single unit;
- TCP/IP protocol encapsulation module Re-encapsulate the application layer data into a standard IP data packet after the data de-duplication and compression module are re-encoded;
- the base station When NTO technology is deployed in a wireless network, the base station may have NTO technology deployed in some base stations due to geographical location, traffic size, and traffic mode. When the terminal switches between base stations, it may switch from NTO-enabled base stations to no.
- a base station supporting NTO switches from a base station that does not support NTO to a base station that supports NTO, and switches from a base station that supports NTO to a base station that supports NTO, which may cause the NTO technology to fail to work properly.
- a mobility support method is designed to solve the problem that the terminal brings when switching in the mobile scenario, so that the NTO technology is successfully deployed in the wireless network, and the embodiment of the present invention defines the NTO technology deployed in the wireless network.
- WNTO Wireless Network Transmission Optimization
- WNTO technology can effectively improve the data transmission efficiency in wireless networks, and correspondingly reduce the link bandwidth of data transmission.
- the capability of the WNTO technology referred to in the embodiment of the present invention specifically includes: compressing and/or decompressing uplink data or downlink data by using the foregoing module.
- embodiments of the present invention also provide corresponding data transmission devices, and related systems. The detailed description will be respectively made below through specific embodiments.
- the data transmission method provided by the embodiment of the present invention is applicable to a terminal that is served by a source base station to switch to a wireless network environment that is served by a target base station.
- the wireless network includes a network side and a base station side.
- the network side device includes a core network, and the core network performs functions such as authentication, authorization, and accounting for services, and has functions of data compression, data transmission, and data forwarding.
- the equipment on the base station side includes a source base station and a destination base station, and data transmission from the network side to the base station side is defined as downlink data, and data transmission from the base station side to the network side is defined as uplink data.
- the embodiment of the present invention provides a data transmission method, which will be described in the network side.
- the network element on the network side includes a data transmission device, and the data transmission device has the WNTO technical capability and has all the connections thereto.
- a fingerprint library of a base station having WNTO technology capability the data transmission device can be deployed in a WNTO gateway manner, can be deployed as a standalone device, or can be hard
- the form of the component or software module is integrated into the core network element, for example, in the LTE network, it can be integrated into the security gateway IPSec GW or the service gateway S-GW.
- FIG. 2 is a schematic flowchart of a data transmission method according to an embodiment of the present invention, where the data transmission method may include:
- Step 201 The data transmission apparatus on the network side detects that the terminal is served by the source base station to switch to the service provided by the target base station, and determines whether the source base station and the target base station have the wireless network transmission optimized WNTO technical capability;
- the data transmission device on the network side can pass the quintuple and GTP-U of the Internet Protocol (IP) data packet in the payload of the GTP-U (GPRS Tunneling Protocol User) of the general packet radio service technology.
- IP Internet Protocol
- GTP-U GPRS Tunneling Protocol User
- the change of the mapping relationship of the lower layer IP address detects whether the terminal has a handover. If the terminal is served by the source base station to switch to the service provided by the target base station, the identifier of the terminal where the handover occurs, the identifier of the source base station, and the identifier of the target base station may be acquired.
- Step 202 Perform uplink data or downlink data transmission according to the determined WNTO technical capabilities of the source base station and the target base station.
- the uplink data corresponds to the data transmitted by the base station side to the data transmission device on the network side
- the downlink data corresponds to the data transmitted by the data transmission device on the network side to the base station side, where the base station side includes the source base station and the target base station.
- FIG. 3a is a schematic diagram of the flow of the data transmission method provided by the embodiment of the present invention:
- Step 301 The data transmission apparatus on the network side detects whether the terminal is switched by the source base station to provide service to the target base station.
- Step 302 If the terminal switches, obtain the terminal identifier, the source base station identifier, and the target base station identifier; the network side data transmission device may pass the IP packet of the GTP-U payload and the GTP-U lower layer IP address.
- the change of the mapping relationship detects whether the terminal has switched.
- the IP address of the lower layer of the GTP-U changes, and the IP address of the source base station is switched to the IP address of the target base station.
- the data transmission device on the network side is based on the lower layer of the GTP-U.
- the quintuple of the IP data packet in the payload of the GTP-U is obtained and the IP address of the terminal that has switched is obtained.
- the quintuple of the IP data packet in the payload of the GTP-U includes a source IP address, a destination IP address, a source port number, a destination port number, and a protocol number.
- the data transmission device on the network side can obtain the terminal identifier, the source base station identifier, and the target base station identifier according to the IP address query configuration database.
- Step 303 Determine, according to the source base station identifier and the target base station identifier, whether the source base station and the target base station have the WNTO technical capability; the source base station identifier and the target base station identifier have a field definition of the WNTO technical capability, and obtain the WNTO of the source base station and the target base station respectively.
- the base station has the WNTO technical capability, and the WNTO module is integrated into the base station by software or hardware, or can be connected to the base station by an independent device, and the base station transmits uplink data and downlink data through the WNTO module.
- the principle is applicable to the source base station. And the target base station.
- step 303 embodiments of the present invention include the following steps 304, 305, or 306:
- Step 304 Determine that the source base station has the WNTO technical capability, and the target base station has the WNTO technical capability, and complete the transmission of the uplink data or the downlink data according to the foregoing situation.
- Step 305 Determine that the source base station does not have the WNTO technical capability, and the target base station has the WNTO technical capability, and complete the transmission of the uplink data or the downlink data according to the foregoing situation;
- Step 306 Determine that the source base station has the WNTO technical capability, and the target base station does not have the WNTO technical capability, and complete the transmission of the uplink data or the downlink data according to the foregoing situation.
- the embodiment of the present invention refines the step 304, and details how to transmit the uplink data and the downlink data in the case of step 304.
- FIG. 3b is a schematic first partial diagram of a method for transmitting data according to an embodiment of the present invention:
- Step 304a The data transmission device receives the uplink compressed data that the target base station compresses the uplink data by using the WNTO technology; the target base station has the WNTO technology capability, and the uplink data sent to the data transmission device on the network side is compressed by the WNTO technology and then sent. .
- Step 304b The data transmission device de-compresses the uplink compressed data and sends the data; the data transmission device on the network side has a fingerprint database of all the base stations with WNTO technology capability connected thereto, and can compress the uplink according to the preset target base station fingerprint database. The data is decompressed using WNTO technology.
- Step 304c The data transmission apparatus sends a synchronization command message to the source base station, so that the source base station synchronizes the fingerprint database to the target base station, where the synchronization command message carries the terminal identifier and the target base station identifier; when both the source base station and the target base station have the WNTO technical capability
- the target base station does not have the fingerprint database of the source base station, and the data transmitted by the source base station after being compressed by the WNTO technology cannot be decompressed.
- the target base station needs to send a synchronization command message to the source base station through the data transmission device, and requests the source base station to synchronize the fingerprint database.
- the fingerprint database is divided into multiple subsets according to different WNTO devices, terminal sessions or other rules. Therefore, the synchronization command message needs to carry the terminal identifier and the target base station identifier, so that the source base station extracts the fingerprint database subset required by the target base station according to the terminal identifier.
- Step 304d When the source base station successfully synchronizes the fingerprint database to the target base station, the data transmission device compresses the downlink data by using the WNTO technology; after the target base station receives the fingerprint database sent by the source base station, the data transmission device according to the preset source base station The fingerprint database compresses the downlink data using WNTO technology.
- Step 304e The data transmission device sends the downlink compressed data compressed by the WNTO technology to the target base station, so that the target base station decompresses the downlink compressed data according to the fingerprint database using the WNTO technology; the target base station receives the fingerprint sent by the source base station.
- the downlink compressed data can be decompressed by the WNTO technology according to the fingerprint database of the source base station.
- the data transmission device on the network side does not compress the uplink data and the downlink data by using the WNTO technology, but receives the uplink data sent by the target base station and directly transmits the data. Or directly send downlink data to the target base station.
- the embodiment of the present invention refines step 305, and details how to transmit uplink data and downlink data in the case of step 305.
- FIG. 3c is a second schematic diagram of a flow of data transmission method according to an embodiment of the present invention:
- Step 305a The data transmission device receives the uplink compressed data that is compressed by the target base station by using the WNTO technology, and the target base station has the WNTO technology capability, and the uplink data sent to the data transmission device on the network side is compressed by the WNTO technology and then sent. .
- Step 305b The data transmission device decompresses and sends the uplink compressed data, and the data transmission device on the network side has a fingerprint database of all the base stations with the WNTO technology capability connected thereto, and can perform uplink compression according to the preset target base station fingerprint database.
- the data is decompressed using WNTO technology.
- Step 305c The data transmission device compresses the downlink data by using the WNTO technology; the data transmission device determines that the source base station does not have the WNTO technology capability, and the target base station has the WNTO technical capability, and uses the WNTO for the downlink data according to the preset target base station fingerprint database. Technology is compressed.
- Step 305d The data transmission device sends the downlink compressed data compressed by the WNTO technology to the target base station, so that the target base station decompresses the downlink compressed data according to the preset fingerprint database; the target base station presets its own fingerprint database, which may be The downlink compressed data is decompressed.
- the embodiment of the present invention refines the step 306, and details how to transmit the uplink data and the downlink data of the target base station in the case of step 306.
- FIG. 3d is a third sub-graph of the flow of the data transmission method provided by the embodiment of the present invention:
- Step 306a The data transmission device directly transmits the uplink data sent by the target base station; the target base station does not have the WNTO technical capability, and cannot compress the uplink data, so directly sends the uplink data to the data transmission device on the network side.
- Step 306b The data transmission device directly sends the downlink data to the target base station; the target base station does not have the WNTO technical capability, and cannot decompress the downlink compressed data compressed by the WNTO technology, so the data transmission device on the network side directly sends the downlink data. Give the target base station.
- the source base station synchronizes the fingerprint database to the target base station.
- the process of fingerprint library synchronization is shown in Figure 4.
- Figure 4 is a schematic diagram of the process of fingerprint library synchronization.
- Step 401 Synchronize the command message; the data transmission device on the network side sends a synchronization command message to the source base station, where the synchronization command message carries the terminal identifier and the target base station identifier of the handover.
- Step 402 Synchronize the request; the source base station sends a synchronization request message to the target base station, where the synchronization request message carries the terminal identifier of the handover and the fingerprint library subset to be synchronized.
- Step 403 Synchronize response; the target base station receives the synchronization request message, and sends the received terminal identifier and the fingerprint library sub-set to the fingerprint database, and then sends a synchronization response message to the source base station, and the synchronization response message carries the fingerprint database synchronization success or The logo of the failure.
- Step 404 Synchronize the command response message.
- the source base station sends a synchronization command response message to the data transmission device on the network side, where the synchronization command response message carries the identifier of the fingerprint database synchronization and the fingerprint database synchronization result.
- step 304d is performed.
- the uplink data and the downlink data are not compressed by the WNTO technology, but the uplink data sent by the target base station is directly transmitted, or the downlink data is directly sent to the target base station.
- the process of synchronizing the fingerprint database to the target base station by the source base station is performed through the X2 interface, otherwise the fingerprint database is synchronized to the destination after being forwarded through the core network through the S1 interface. Standard base station.
- the data transmission apparatus on the network side can synchronize the fingerprint database by transmitting the multiple synchronization command message to the source base station, so that the source base station responds to the synchronization command message.
- the terminal is provided by the source base station to provide services to the target base station to provide services, and solves the problems of compression optimization decision and fingerprint database synchronization required for the dual-end deployment network transmission optimization NTO technology, and can reduce
- the base station transmits bandwidth and reduces the transmission delay of the wireless network.
- the embodiment of the present invention further provides an apparatus based on the foregoing data transmission method.
- the meaning of the noun is the same as that in the above data transmission method. For specific implementation details, refer to the description in the method embodiment.
- FIG. 5 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention, and the apparatus may include:
- the detecting module 501 is configured to detect that the terminal is switched by the source base station to provide services by the target base station;
- a determining module 502 configured to: when the detecting module 501 detects that the terminal is served by the source base station to switch to provide service by the target base station, determining whether the source base station and the target base station have WNTO technical capabilities;
- the transmitting module 503 is configured to complete uplink data or downlink data transmission according to the WNTO technical capabilities of the source base station and the target base station determined by the determining module 502.
- the transmitting module 503 is further configured to: when the determining module 502 determines that the target base station and the source base station both have WNTO technical capabilities, receive the target base station, and use the WNTO technology to compress the uplink data. After the uplink compressed data is decompressed and sent, the uplink compressed data is sent to the source base station, so that the source base station synchronizes the fingerprint database to the target base station, where The synchronization command message carries a terminal identifier and a target base station identifier;
- the transmitting module 503 is further configured to: when the determining module 502 determines that the target base station has the WNTO technical capability, and the source base station does not have the WNTO technical capability, receive the uplink data by the target base station. ⁇ compressing the uplink compressed data by using the WNTO technology, and decompressing and transmitting the uplink compressed data;
- the downlink data is compressed by using the WNTO technology, and the downlink compressed data compressed by the WNTO technology is sent to the target base station, so that the target base station performs the downlink compressed data according to the preset fingerprint database. unzip.
- the processing module 503 is further configured to: when the determining module 502 determines that the target base station does not have the WNTO technical capability, and the source base station has the WNTO technical capability; after receiving the uplink data sent by the target base station, Send directly
- the present invention also provides a data transmission device for data transmission, which may be a network element on the network side, such as a gateway, a function chip on a gateway, a board, and the like.
- Fig. 6 is a view showing the configuration of the data transmission device.
- the data transmission apparatus of FIG. 6 includes an interface 601, a processing unit 602, and a memory 603.
- Processing unit 602 controls the operation of gateway 600.
- Memory 603 can include read only memory and random access memory and provides instructions and data to processing unit 602.
- a portion of memory 603 may also include non-volatile random access memory (NVRAM).
- NVRAM non-volatile random access memory
- gateway 600 The various components of gateway 600 are coupled together by a bus system 609, which in addition to the data bus includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 609 in the figure.
- the method for transmitting the foregoing various uplink data and downlink data disclosed in the foregoing embodiment of the present invention may be applied to the processing unit 602 or implemented by the processing unit 602.
- each step of the above method may be completed by an integrated logic circuit of hardware in the processing unit 602 or an instruction in the form of software.
- the processing unit 602 can be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or perform the embodiments of the present invention.
- a general purpose processor can be a microprocessor or any conventional processor or the like.
- the steps of the method disclosed in the embodiments of the present invention may be directly implemented as hardware processor execution, or in a processor.
- the hardware and software module combination is completed.
- the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the storage medium is located in the memory 603, and the processing unit 602 reads the information in the memory 603 and completes the steps of the above method in combination with hardware.
- the present invention also provides a data transmission device, which may be a base station or an access point. Please refer to FIG. 7.
- FIG. 7 is a schematic structural diagram of a data transmission device according to an embodiment of the present invention.
- Source base station including:
- the receiving module 701 is configured to receive a synchronization command message, where the synchronization command message carries a terminal identifier and a target base station identifier.
- the synchronization module 702 is configured to extract a fingerprint database according to the terminal identifier, and synchronize the fingerprint database to the target base station.
- the source base station may further include: a response module 703, configured to send a synchronization command response message to the gateway, so that the gateway compresses the downlink data by using the NTO technology and compresses the downlink data by using the NTO technology. Sent to the target base station.
- a response module 703 configured to send a synchronization command response message to the gateway, so that the gateway compresses the downlink data by using the NTO technology and compresses the downlink data by using the NTO technology. Sent to the target base station.
- FIG. 8 is a schematic structural diagram of a data transmission system according to an embodiment of the present invention.
- the data transmission system may include: a source base station 801, a data transmission device 802, and Target base station 803.
- the various devices in the system are used to perform the foregoing embodiments, including but not limited to the methods shown in Figures 2, 3a, 3b, 3c, 3d, 4, etc., the details of which are not described again.
- the disclosed systems, apparatus, and methods may be implemented in other ways.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, It can be electrical, mechanical or other form.
- the functional units in the various embodiments of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the above-mentioned integrated unit can be implemented either in the form of hardware or in the form of a software functional unit.
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Abstract
本发明实施例公开了一种数据的传输方法、系统及相关装置。本发明实施例方法包括:网络侧的数据传输装置检测到终端由源基站提供服务切换到由目标基站提供服务时,确定所述源基站和所述目标基站是否具有无线网络传输优化WNTO技术能力;根据所述确定的所述源基站和所述目标基站各自的 WNTO技术能力,完成上行数据或者下行数据的传输,有效提高了无线网络中的数据传输效率。
Description
一种数据的传输方法、 系统及相关装置
技术领域 本发明涉及通信领域, 尤其涉及一种数据的传输方法、 系统及相关装置。 背景技术 随着移动业务的发展, 回程网 (Backhaul )的带宽需求不断增加, 为了优 化无线网络传输系统,提高基站的竟争力,需要实现站点扩容,并优化 Backhaul 的传输。 例如, 在无线空口协议栈的分组数据会聚协议(PDCP, Packet Data Convergence Protocol )层上对其上层传输的数据流的协议头部进行压缩, 或者 用户数据应用层自行压缩。 但是, PDCP层仅仅压缩用户数据的协议的头部, 仅能针对单个用户, 只适用于协议载荷较小的情况, 当协议载荷较大时, 压缩 效果不明显, 无法有效地优化网络传输。 而用户数据应用层的自行压缩取决于 该应用是否配置了压缩功能, 当该应用没有配置压缩功能时, 无法优化网络传 输。
为了有效地优化网络传输, 现有技术提出一种网络传输优化 (NTO, Network Transmission Optimization )技术, 通过使用流量削减、 流量压缩、 流 量緩存和协议加速等技术来提高网络或应用的性能,能够对同一链路上的单个 用户数据在较大范围内的或是不同用户间的重复数据实现压缩优化。
然而, NTO技术要求在所优化的网络两端成对部署, 即在网络一端对数 据进行压缩后, 需要在网络另一端进行解压缩。 在无线网络中, 终端在跨基站 切换时,可能会由于源基站对数据的压缩协议不同导致目标基站无法有效对数 据进行解压缩, 这样会导致 NTO技术无法在无线网络中正常工作。 发明内容 本发明实施例提供了一种数据的传输方法、 系统及相关装置, 可以有效提 高无线网络中的数据传输效率。
第一方面, 本发明提供了一种数据的传输方法, 可包括:
网络侧的数据传输装置检测到终端由源基站提供服务切换到由目标基站 提供服务时, 确定源基站和目标基站是否具有无线网络传输优化 WNTO技术
能力;
根据确定的源基站和目标基站各自的 WNTO技术能力, 完成上行数据或 者下行数据的传输。
在第一方面的第一种可能的实现方式中,数据传输装置确定源基站和目标 基站是否具有无线网络传输优化 WNTO技术能力具体包括: 数据传输装置确 定源基站和目标基站均具有 WNTO技术能力;
根据确定的源基站和目标基站各自的 WNTO技术能力, 完成上行数据或 者下行数据的传输具体包括: 数据传输装置接收目标基站将上行数据釆用 WNTO技术进行压缩后的上行压缩数据, 对上行压缩数据进行解压缩后发送; 或者,数据传输装置向源基站发送同步命令消息, 以使得源基站将指纹库同步 给目标基站, 其中, 同步命令消息携带终端标识和目标基站标识; 当源基站将 指纹库成功同步给目标基站, 则将下行数据釆用 WNTO技术进行压缩; 将釆 用 WNTO技术进行压缩后的下行压缩数据发送给目标基站, 使得目标基站根 据指纹库并釆用 WNTO技术对下行压缩数据进行解压缩。
在第一方面的第二种可能的实现方式中,数据传输装置确定源基站和目标 基站是否具有无线网络传输优化 WNTO技术能力具体包括: 数据传输装置确 定目标基站具有 WNTO技术能力, 且源基站不具有 WNTO技术能力;
根据确定的源基站和目标基站各自的 WNTO技术能力, 完成上行数据或 者下行数据的传输具体包括: 数据传输装置接收目标基站将上行数据釆用 WNTO技术进行压缩后的上行压缩数据, 对上行压缩数据进行解压缩后发送; 或者, 数据传输装置将下行数据釆用 WNTO技术进行压缩, 并将釆用 WNTO 技术进行压缩的下行压缩数据发送给目标基站,使得目标基站根据预置指纹库 对下行压缩数据进行解压缩。
在第一方面的第三种可能的实现方式中,数据传输装置确定源基站和目标 基站是否具有无线网络传输优化 WNTO技术能力具体包括: 数据传输装置确 定目标基站不具有 WNTO技术能力, 且源基站具有 WNTO技术能力;
根据确定的源基站和目标基站各自的 WNTO技术能力, 完成上行数据或 者下行数据的传输具体包括:数据传输装置接收目标基站发送的上行数据后直 接发送; 或者, 直接发送下行数据给目标基站。
结合第一方面, 第一方面的第一至第三中任一可能的实现方式,在第四种
可能的实现方式中,检测到终端由源基站提供服务切换到由目标基站提供服务 时, 确定源基站和目标基站是否具有 WNTO技术能力的过程具体包括: 检测 终端是否发生切换, 若是, 则获取终端的标识、 源基站的标识和目标基站的标 识; 根据源基站的标识判断源基站是否具有 WNTO技术能力, 以及根据目标 基站的标识判断目标基站是否具有 WNTO技术能力。
结合第一方面的第一种可能的实现方式, 在第五种可能的实现方式中, 当 源基站未将指纹库成功同步给目标基站,则数据传输装置接收目标基站发送的 上行数据后直接发送; 或者, 直接发送下行数据给目标基站。
第二方面, 本发明提供了一种数据的传输方法, 可包括:
源基站接收同步命令消息, 同步命令消息携带终端标识和目标基站标识; 根据终端标识提取指纹库, 并将指纹库同步给目标基站。
在第二方面的第一种可能的实现方式中,根据终端标识提取指纹库并将指 纹库同步给目标基站, 具体包括: 根据终端标识提取指纹库; 将指纹库通过
X2或 S1接口同步给目标基站。
结合第二方面, 或第二方面的第一种可能的实现方式, 在第二种可能的实 现方式中, 将指纹库同步给目标基站的步骤之后, 还包括: 源基站向网络侧的 数据传输装置发送同步命令响应消息, 同步命令响应消息包括指纹库同步结 果。
第三方面, 本发明提供了一种数据传输装置, 可包括:
检测模块, 用于检测终端由源基站提供服务切换到由目标基站提供服务; 确定模块,用于检测模块检测到终端由源基站提供服务切换到由目标基站 提供服务时, 确定源基站和目标基站是否具有 WNTO技术能力;
传输模块, 用于根据确定的源基站和目标基站各自的 WNTO技术能力, 完成上行数据或者下行数据的传输。
在第三方面的第一种可能的实现方式中,传输模块,还用于当确定模块确 定目标基站和源基站均具有 WNTO技术能力时, 接收目标基站将上行数据釆 用 WNTO技术压缩后的上行压缩数据, 对上行压缩数据进行解压缩后发送; 或者, 向源基站发送同步命令消息, 以使得源基站将指纹库同步给目标基站, 其中, 同步命令消息携带终端标识和目标基站标识; 当源基站将指纹库成功同 步给目标基站, 则将下行数据釆用 WNTO技术进行压缩; 将釆用 WNTO技术
进行压缩后的下行压缩数据发送给目标基站,使得目标基站根据指纹库并釆用 WNTO技术对下行压缩数据进行解压缩。
在第三方面的第二种可能的实现方式中,传输模块,还用于当确定模块确 定目标基站具有 WNTO技术能力, 且源基站不具有 WNTO技术能力时,接收 目标基站将上行数据釆用 WNTO技术进行压缩后的上行压缩数据, 对上行压 缩数据进行解压缩后发送; 或者, 将下行数据釆用 WNTO技术进行压缩, 并 将釆用 WNTO技术进行压缩后的下行压缩数据发送给目标基站, 使得目标基 站根据预置指纹库对下行压缩数据进行解压缩。
第三方面的第三种可能的实现方式中,传输模块,还用于当确定模块确定 目标基站不具有 WNTO技术能力, 且源基站具有 WNTO技术能力时,接收目 标基站发送的上行数据后直接发送; 或者, 直接发送下行数据给目标基站。
结合第三方面, 第三方面的第一至第三任一可能的实现方式, 在第三种可 能的实现方式中,确定模块,还用于当检测模块检测到终端由源基站提供服务 切换到由目标基站提供服务时,确定终端的标识、 源基站的标识和目标基站的 标识; 根据源基站的标识确定源基站是否具有 WNTO技术能力, 以及根据目 标基站的标识确定目标基站是否具有 WNTO技术能力。
结合第三方面的第一种可能的实现方式, 在第四种可能的实现方式中,传 输模块,还用于当源基站未将指纹库成功同步给目标基站, 则接收目标基站发 送的上行数据后直接发送; 或者, 直接发送下行数据给目标基站。
第四方面,本发明提供了一种数据传输装置,其中,该数据传输装置包括: 总线, 以及连接到总线的处理器、 存储器和接口, 其中, 接口用于和其他网元 通信,存储器用于存储指令, 处理器执行指令用于执行第一方面提供的一种数 据传输方法。
第五方面, 本发明提供了一种数据传输装置, 可包括:
接收模块, 用于接收同步命令消息, 同步命令消息携带终端标识和目标基 站标识;
同步模块, 用于根据终端标识提取指纹库, 并将指纹库同步给目标基站。 在第五方面的第一种可能的实现方式中, 该数据传输装置还可包括: 响应 模块, 用于发送同步命令响应消息, 同步命令响应消息包括指纹库同步结果。
第六方面, 本发明提供了一种数据传输系统, 可包括: 如第三方面提供的
任一数据传输装置、 源基站和目标基站。
从以上技术方案可以看出, 本发明实施例具有以下优点:
本发明实施例在网络侧的数据传输装置检测到终端由源基站提供服务切 换到由目标基站提供服务时,确定源基站和目标基站是否具有无线网络传输优 化 WNTO技术能力; 根据确定的源基站和目标基站各自的 WNTO技术能力, 完成上行数据或者下行数据的传输, 可以有效提高无线网络中的数据传输效 率。 附图说明 为了更清楚地说明本发明实施例的技术方案,下面将对实施例描述中所需 要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的 一些实施例, 对于本领域技术人员来讲, 在不付出创造性劳动的前提下, 还可 以根据这些附图获得其他的附图。
图 1是本发明实施例中可应用的系统架构的示意图;
图 2是本发明实施例中数据的传输方法的一个流程示意图;
图 3a是本发明实施例中数据的传输方法的流程示意总图;
图 3b是本发明实施例中数据的传输方法的流程示意第一子图;
图 3c是本发明实施例中数据的传输方法的流程示意第二子图;
图 3d是本发明实施例中数据的传输方法的流程示意第三子图;
图 4是本发明实施例中数据的传输方法的指纹库同步流程示意图; 图 5是本发明实施例中数据传输装置的结构示意图;
图 6是本发明实施例中数据传输装置 (网关) 的结构示意图;
图 7是本发明实施例中数据传输装置 (基站) 的结构示意图;
图 8是本发明实施例中数据的传输系统的结构示意图。 具体实施方式 下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清 楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是 全部的实施例。基于本发明中的实施例, 本领域技术人员在没有做出创造性劳 动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
首先, 需要说明的是在本发明部分实施例以 LTE网络为例进行说明, 但是本发明并不仅仅可以应用于长期演进( Long Term Evolution, LTE ) 网 络, 还可以使用多种通信标准、 协议和技术中的任何一种, 如全球移动通 信系统 ( Global System for Mobile Communications , GSM ) 、 增强型数据 速率 GSM演进( Enhanced Data rate for GSM Evolution, EDGE ) 、 Wi-MAX ( 802.16 ) 、 宽带码分多址 ( Wideband Code Division Multiple Access , WCDMA ) 、 时分多址(Time Division Multiple Access , TDM A) , 码分多址 ( Code Division Multiple Access , CDMA )、 Wi-Fi、蓝牙 Bluetooth、 Zig-bee、 802.15、 VoIP, 短消息服务 (Short Message Service, SMS)或其他合适的通 信协议和技术, 包括在本文件提交日尚未开发或确定的通信协议。 另一方 面, 实施例中的网络可以是因特网、 一个或多个内部网、 局域网 (LAN ) 、 广域网 (WLAN ) 、 存储局域网 (SAN ) 等, 或其适当组合。
本发明实施例釆用的无线网络传输优化 ( WNTO, Wireless Network Transmission Optimization )技术, 是基于互联网、 企业网等固定网络中广泛使 用的网络传输优化(NTO, Network Transmission Optimization )技术。
NTO技术可通过流量削减、 流量压缩、 流量緩存和协议加速等技术来提 高网络或应用的性能。 NTO 技术包括重复数据消除、 传统数据压缩 (如 Lempel-Ziv系列算法)、 緩存机制、 协议加速(如 TCP传输优化、 HTTP优化 等)等, 以上技术可以单独或组合使用, 达到削减带宽占用、 降低网络时延的 目的。其中的重复数据消除技术不同于传统的数据压缩算法仅仅是针对单个用 户数据在局部范围内的数据压缩,能够对同一链路上的单个用户数据在较大范 围内的或是不同用户间的重复数据实现压缩, 能取得更好的压缩效果。 其中, NTO技术在所优化的网络两端成对部署, 可以处理上行或下行方向的数据流。 其中, 网络两端的 NTO技术均包括: TCP/IP协议解析模块、 TCP/IP协议封装 模块、 数据去重和压缩模块、 以及数据解压和还原模块, 具体实施可以如下:
1、 TCP/IP协议解析模块: 对输入标准的 IP数据包的 IP分片重组, 解析 传输层协议, 获取应用层数据, 若传输层为 TCP协议, 则对 TCP会话重组;
2、 数据去重和压缩模块: 将应用数据进行切片, 对切片生成指纹(数据 切片的数字摘要), 建立指纹与原始数据的索引结构, 生成指纹库, 并同步网 络两端的指纹库; 根据指纹判断是否存在重复的数据切片, 用指纹代替重复的
数据切片, 将指纹和未重复数据切片重新编码, 可选择进行 Lempel-Ziv 系列 传统压缩算法压缩, 生成新的应用数据;
3、 数据解压和还原模块: 对数据去重和压缩模块进行去重和压缩后的应 用数据解压为原始数据, 识别出指纹和未重复的数据切片, 查询指纹库, 还原 出原始数据, 并将原始数据切片组装成一个整体;
4、 TCP/IP协议封装模块: 将数据去重和压缩模块进行重新编码后的应用 层数据重新封装成标准的 IP数据包;
在无线网络中部署 NTO技术时, 基站由于地理位置、 流量大小、 流量模 式等各有不同, 可能只有部分基站部署了 NTO技术, 终端在跨基站切换时, 可能会从支持 NTO的基站切换到不支持 NTO的基站, 从不支持 NTO的基站 切换到支持 NTO的基站, 从支持 NTO的基站切换到支持 NTO的基站, 这样 会导致 NTO技术无法正常工作。
本发明实施例,设计一种移动性支持方法,解决终端在移动场景中切换时 带来的问题, 使得 NTO技术顺利部署到无线网络中, 本发明实施例将部署在 无线网络中的 NTO技术定义为无线网络传输优化 ( WNTO, Wireless Network Transmission Optimization )技术, WNTO技术可以有效提高无线网络中的数据 传输效率, 相应地减少数据传输的链路带宽。 相应的, 本发明实施例中所指的 具有 WNTO技术能力具体包括: 可以通过上述模块对上行数据或下行数据进 行压缩和 /或解压缩。 此外, 本发明实施例还提供了相应的数据传输装置, 以 及相关系统。 下面通过具体实施例, 分别进行详细的说明。
如图 1所示,本发明实施例提供的数据的传输方法适用于终端由源基站提 供服务切换到由目标基站提供服务的无线网络环境中。无线网络包含网络侧和 基站侧, 其中网络侧的设备包括核心网, 核心网对业务完成认证、授权和计费 等功能, 并具有数据压缩、 数据传输、 数据转发的功能。 基站侧的设备包括源 基站和目的基站,从网络侧到基站侧的数据传输定义为下行数据,从基站侧到 网络侧的数据传输定义为上行数据。
本发明实施例提供了一种数据的传输方法,下面将以网络侧的角度进行描 述, 其中, 网络侧的网元包括数据传输装置, 该数据传输装置具有 WNTO技 术能力, 具有和其连接的所有具有 WNTO技术能力的基站的指纹库, 该数据 传输装置可以以 WNTO网关的方式部署, 可以以独立设备部署, 也可以以硬
件或软件模块的形式集成到核心网网元的内部, 例如, 在 LTE 网络中, 可以 集成到安全网关 IPSec GW或业务网关 S-GW内。
如图 2所示,图 2为本发明实施例提供的数据的传输方法的一个流程示意 图, 其中, 所述数据的传输方法可包括:
步骤 201、 网络侧的数据传输装置检测到终端由源基站提供服务切换到由 目标基站提供服务时, 确定源基站和目标基站是否具有无线网络传输优化 WNTO技术能力;
网络侧的数据传输装置可以通过通用分组无线服务技术的隧道协议用户 面( GTP-U, GPRS Tunnelling Protocol User )的载荷里的网际协议( IP, Internet Protocol )数据包的五元组和 GTP-U下层 IP地址的映射关系的变化检测终端 是否发生切换, 若终端由源基站提供服务切换到由目标基站提供服务时, 可以 获取发生切换的终端的标识、 源基站的标识和目标基站的标识。
步骤 202、 根据确定的源基站和目标基站各自的 WNTO技术能力, 完成 上行数据或者下行数据的传输。其中, 上行数据对应基站侧发送给网络侧的数 据传输装置的数据, 下行数据对应网络侧的数据传输装置发送给基站侧的数 据, 其中, 基站侧包括源基站和目标基站。
为了更好的理解上述方案, 下面将对上述方案进行详细说明, 如图 3a所 示, 图 3a是本发明实施例提供的数据的传输方法的流程示意总图:
步骤 301、 网络侧的数据传输装置检测到终端是否由源基站提供服务切换 到由目标基站提供服务;
步骤 302、若终端发生切换,获取终端标识、 源基站标识和目标基站标识; 网络侧的数据传输装置可以通过 GTP-U 的载荷里的 IP数据包的五元组和 GTP-U下层 IP地址的映射关系的变化检测终端是否发生切换。 当终端由源基 站提供服务切换到由目标基站提供服务, GTP-U下层 IP地址会发生变化, 由 源基站的 IP 地址切换到目标基站的 IP 地址, 网络侧的数据传输装置根据 GTP-U下层 IP地址变化的情形,确定终端发生切换, 并通过 GTP-U的载荷里 的 IP数据包的五元组并获取发生切换的终端的 IP地址。其中, GTP-U的载荷 里的 IP数据包的五元组包括源 IP地址、 目标 IP地址、 源端口号、 目标端口 号、 协议号。 然后, 网络侧的数据传输装置根据 IP地址查询配置数据库可以 得到终端标识、 源基站标识和目标基站标识。
步骤 303、 根据源基站标识和目标基站标识判断源基站和目标基站是否均 具有 WNTO技术能力;源基站标识和目标基站标识中有 WNTO技术能力的字 段定义, 可以得到源基站和目标基站各自的 WNTO技术能力。 其中, 基站具 有 WNTO技术能力,体现在 WNTO模块以软件或硬件的方式集成到基站内部, 也可以以独立设备连接到基站, 基站通过 WNTO模块对上行数据和下行数据 传输, 该原理适用于源基站和目标基站。
步骤 303之后, 本发明实施例包括如下文步骤 304、 305或者 306几种不 同的情况:
步骤 304、 确定源基站具有 WNTO技术能力, 目标基站具有 WNTO技术 能力, 根据上述情况完成上行数据或者下行数据的传输。
步骤 305、 确定源基站不具有 WNTO技术能力, 目标基站具有 WNTO技 术能力, 根据上述情况完成上行数据或者下行数据的传输;
步骤 306、 确定源基站具有 WNTO技术能力, 目标基站不具有 WNTO技 术能力, 根据上述情况完成上行数据或者下行数据的传输。
为了更好的理解上述方案, 本发明实施例对步骤 304进行细化, 详细阐述 步骤 304情形下, 如何对上行数据和下行数据进行传输。
如图 3b所示,图 3b是本发明实施例提供的数据的传输方法的流程示意第 一子图:
步骤 304a、 数据传输装置接收目标基站将上行数据釆用 WNTO技术进行 压缩后的上行压缩数据; 目标基站具有 WNTO技术能力, 将发送给网络侧的 数据传输装置的上行数据釆用 WNTO技术压缩后发送。
步骤 304b、 数据传输装置对上行压缩数据进行解压缩后发送; 网络侧的 数据传输装置具有和其连接的所有具有 WNTO技术能力的基站的指纹库, 可 以根据预置的目标基站指纹库对上行压缩数据釆用 WNTO技术进行解压缩。
步骤 304c、 数据传输装置向源基站发送同步命令消息, 以使得源基站将 指纹库同步给目标基站, 其中同步命令消息携带终端标识和目标基站标识; 当 源基站和目标基站都具有 WNTO技术能力时, 目标基站并不具有源基站的指 纹库, 就不能解压缩源基站通过 WNTO技术压缩后发送的数据, 目标基站需 要通过数据传输装置向源基站发送同步命令消息,请求源基站同步指纹库。 其 中, 指纹库根据不同的 WNTO装置、 终端会话或其他规则划分为多个子集,
因此同步命令消息需要携带终端标识和目标基站标识,以便于源基站根据终端 标识提取目标基站需要的指纹库子集。
步骤 304d、 当源基站将指纹库成功同步给目标基站, 则数据传输装置将 下行数据釆用 WNTO技术进行压缩; 目标基站收到源基站发送的指纹库后, 数据传输装置根据预置的源基站指纹库对下行数据釆用 WNTO技术压缩。
步骤 304e、 数据传输装置将釆用 WNTO技术进行压缩后的下行压缩数据 发送给目标基站, 使得目标基站根据指纹库釆用 WNTO技术对下行压缩数据 进行解压缩; 目标基站收到源基站发送的指纹库后, 能根据源基站的指纹库对 下行压缩数据釆用 WNTO技术解压缩。
进一步地, 当源基站未将指纹库成功同步给目标基站, 则网络侧的数据传 输装置, 并不对上行数据和下行数据釆用 WNTO技术压缩, 而是接收目标基 站发送的上行数据后直接发送, 或者直接发送下行数据给目标基站。 为了更好的理解上述方案, 本发明实施例对步骤 305进行细化, 详细阐述 步骤 305情形下, 如何对上行数据和下行数据进行传输。
如图 3c所示, 图 3c是本发明实施例提供的数据的传输方法的流程示意第 二子图:
步骤 305a、 数据传输装置接收目标基站将上行数据釆用 WNTO技术进行 压缩后的上行压缩数据; 目标基站具有 WNTO技术能力, 将发送给网络侧的 数据传输装置的上行数据釆用 WNTO技术压缩后发送。
步骤 305b、 数据传输装置对上行压缩数据进行解压缩后发送; 网络侧的 数据传输装置具有和其连接的所有具有 WNTO技术能力的基站的指纹库, 可 以根据预置的目标基站指纹库对上行压缩数据釆用 WNTO技术进行解压缩。
步骤 305c、 数据传输装置将下行数据釆用 WNTO技术进行压缩; 数据传 输装置确定源基站不具有 WNTO技术能力, 目标基站具有 WNTO技术能力, 会根据预置的目标基站指纹库对下行数据釆用 WNTO技术进行压缩。
步骤 305d、 数据传输装置将釆用 WNTO技术进行压缩的下行压缩数据发 送给目标基站,使得目标基站根据预置指纹库对下行压缩数据进行解压缩; 目 标基站预置有自身的指纹库, 可以对下行压缩数据进行解压。
为了更好的理解上述方案, 本发明实施例对步骤 306进行细化, 详细阐述 步骤 306情形下, 如何对目标基站的上行数据和下行数据进行传输。
如图 3d所示,图 3d是本发明实施例提供的数据的传输方法的流程示意第 三子图:
步骤 306a、 数据传输装置接收目标基站发送的上行数据后直接发送; 目 标基站不具有 WNTO技术能力, 不能对上行数据进行压缩, 因此直接发送上 行数据给网络侧的数据传输装置。
步骤 306b、 数据传输装置直接发送下行数据给目标基站; 目标基站不具 有 WNTO技术能力,不能对釆用 WNTO技术压缩后的下行压缩数据进行解压 缩, 所以网络侧的数据传输装置直接将下行数据发送给目标基站。 此外, 终端由源基站提供服务切换到由目标基站提供服务,且网络侧的数 据传输装置确定源基站和目标基站具有 WNTO技术能力时, 源基站将指纹库 同步给目标基站。指纹库同步的过程如图 4所示, 图 4是指纹库同步的流程示 意图。
步骤 401、 同步命令消息; 网络侧的数据传输装置向源基站发送同步命令 消息, 同步命令消息携带发生切换的终端标识、 目标基站标识。
步骤 402、 同步请求; 源基站向目标基站发送同步请求消息, 同步请求消 息携带发生切换的终端标识和所需同步的指纹库子集。
步骤 403、 同步响应; 目标基站收到同步请求消息, 将收到的终端标识和 指纹库子集合并到自己的指纹库, 然后向源基站发送同步响应消息, 同步响应 消息携带指纹库同步成功或失败的标识。
步骤 404、 同步命令响应消息; 源基站向网络侧的数据传输装置发送同步 命令响应消息,同步命令响应消息携带是否进行指纹库同步的标识和指纹库同 步结果。 当网络侧的数据传输装置确定指纹库同步成功, 则执行步骤 304d。 当网络侧的数据传输装置确定指纹库同步失败,则不对上行数据和下行数据釆 用 WNTO技术压缩, 而是接收目标基站发送的上行数据后直接发送, 或者直 接发送下行数据给目标基站。
若源基站和目标基站存在 X2接口, 则源基站将指纹库同步给目标基站的 过程通过 X2接口进行, 否则通过 S1接口经核心网转发后将指纹库同步给目
标基站。
需说明的是, 若一次同步不成功, 网络侧的数据传输装置可以通过向源基 站发送多次同步命令消息,使得源基站响应该同步命令消息, 实现指纹库的同 步。
本发明实施例在无线网络中,终端由源基站提供服务切换到目标基站提供 服务的场景下,解决了双端部署网络传输优化 NTO技术所需的压缩优化决策、 指纹库同步等问题,可以减少基站传输带宽的占用,降低无线网络的传输时延。 为便于更好的实施本发明实施例提供的数据的传输方法,本发明实施例还 提供一种基于上述数据的传输方法的装置。其中名词的含义与上述数据的传输 方法中相同, 具体实现细节可以参考方法实施例中的说明。
如图 5所示, 图 5是本发明实施例中数据传输装置的结构示意图, 该装置 可包括:
检测模块 501, 用于检测终端由源基站提供服务切换到由目标基站提供服 务;
确定模块 502, 用于所述检测模块 501检测到终端由源基站提供服务切换 到由目标基站提供服务时, 确定所述源基站和所述目标基站是否具有 WNTO 技术能力;
传输模块 503, 用于根据所述确定模块 502确定的所述源基站和所述目标 基站各自的 WNTO技术能力, 完成上行数据或者下行数据的传输。
具体的, 所述传输模块 503, 还用于当所述确定模块 502确定所述目标基 站和所述源基站均具有 WNTO技术能力时, 接收所述目标基站将所述上行数 据釆用 WNTO技术压缩后的上行压缩数据, 对所述上行压缩数据进行解压缩 后发送; 或者, 向所述源基站发送同步命令消息, 以使得所述源基站将所述指 纹库同步给所述目标基站, 其中, 所述同步命令消息携带终端标识和目标基站 标识;
当所述源基站将所述指纹库成功同步给所述目标基站,则将所述下行数据 釆用 WNTO技术进行压缩;将所述釆用 WNTO技术进行压缩后的下行压缩数 据发送给所述目标基站, 使得所述目标基站根据所述指纹库釆用 WNTO技术 对所述下行压缩数据进行解压缩。
具体的, 所述传输模块 503, 还用于当所述确定模块 502确定所述目标基 站具有 WNTO技术能力, 且所述源基站不具有 WNTO技术能力时,接收所述 目标基站将所述上行数据釆用 WNTO技术进行压缩后的上行压缩数据, 对所 述上行压缩数据进行解压缩后发送;
或者将所述下行数据釆用 WNTO技术进行压缩,并将釆用 WNTO技术进 行压缩后的下行压缩数据发送给所述目标基站,使得所述目标基站根据预置指 纹库对所述下行压缩数据进行解压缩。
具体的, 所述处理模块 503, 还用于当所述确定模块 502确定所述目标基 站不具有 WNTO技术能力, 且所述源基站具有 WNTO技术能力时; 接收所述 目标基站发送的上行数据后直接发送;
或者, 直接发送所述下行数据给所述目标基站。
需说明的是, 其具体实施可参见上述方法实施例, 此处不再赘述。 本发明还提供了一种用于数据传输的数据传输装置, 可以是网络侧的网 元, 例如网关, 网关上的功能芯片、 单板等。 图 6是该数据传输装置的结构示 意图。 图 6的数据传输装置包括接口 601、 处理单元 602和存储器 603。 处理 单元 602控制网关 600的操作。存储器 603可以包括只读存储器和随机存取存 储器, 并向处理单元 602提供指令和数据。存储器 603的一部分还可以包括非 易失行随机存取存储器(NVRAM )。 网关 600 的各个组件通过总线系统 609 耦合在一起, 其中总线系统 609除包括数据总线之外, 还包括电源总线、 控制 总线和状态信号总线。但是为了清楚说明起见,在图中将各种总线都标为总线 系统 609。
上述本发明实施例揭示的发送前述各种上行数据和下行数据方法可以应 用于处理单元 602中, 或者由处理单元 602实现。 在实现过程中, 上述方法的 各步骤可以通过处理单元 602 中的硬件的集成逻辑电路或者软件形式的指令 完成。 处理单元 602可以是通用处理器、 数字信号处理器、 专用集成电路、 现 场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立 硬件组件, 可以实现或者执行本发明实施例中的公开的各方法、 步骤及逻辑框 图。通用处理器可以是微处理器或者任何常规的处理器等。 结合本发明实施例 所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的
硬件及软件模块组合执行完成。 软件模块可以位于随机存储器, 闪存、 只读存 储器, 可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的 存储介质中。 该存储介质位于存储器 603, 处理单元 602读取存储器 603中的 信息, 结合其硬件完成上述方法的步骤。 本发明还提供了一种数据传输装置,该数据传输装置可以是一种基站或者 接入点, 请参阅图 7, 图 7是该发明实施例中数据传输装置的结构示意图, 该 数据传输装置作为源基站, 包括:
接收模块 701, 用于接收同步命令消息, 所述同步命令消息携带终端标识 和目标基站标识;
同步模块 702, 用于根据所述终端标识提取指纹库, 并将所述指纹库同步 给所述目标基站。
进一步地, 该源基站还可包括: 响应模块 703, 用于向网关发送同步命令 响应消息, 使得所述网关对所述下行数据釆用 NTO 技术进行压缩并将釆用 NTO技术进行压缩的下行数据发送给所述目标基站。
需说明的是, 其具体实施可参见上述方法实施例, 此处不再赘述。 此外, 本发明还提供了一种数据的传输系统, 请参阅图 8, 图 8是本发明 实施例中数据传输系统的结构示意图, 该数据传输系统可包括: 源基站 801、 数据传输装置 802和目标基站 803。 该系统中的各装置用于分别执行前文各方 法实施方式, 包括但不限于图 2, 图 3a, 图 3b, 图 3c, 图 3d, 图 4等所示的 方法, 其细节不再赘述。
在上述实施例中,对各个实施例的描述都各有侧重, 某个实施例中没有详 述的部分, 可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中, 应该理解到, 所揭示的系统, 装置和方 法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅是示意性 的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可以有另 外的划分方式, 例如多个单元或组件可以结合或者可以集成到另一个系统, 或 一些特征可以忽略, 或不执行。 另一点, 所显示或讨论的相互之间的耦合或直 接鶫合或通信连接可以是通过一些接口, 装置或单元的间接鶫合或通信连接,
可以是电性, 机械或其它的形式。
在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以 是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。 上 述集成的单元既可以釆用硬件的形式实现,也可以釆用软件功能单元的形式实 现。
以上对本发明所提供的一种数据的传输方法、 系统及相关装置, 进行了详 实施例的说明只是用于帮助理解本发明的方法及其核心思想; 同时,对于本领 域的技术人员,依据本发明实施例的思想,在具体实施方式及应用范围上均会 有改变之处, 综上所述, 本说明书内容不应理解为对本发明的限制。
Claims
1、 一种数据的传输方法, 其特征在于, 包括:
网络侧的数据传输装置检测到终端由源基站提供服务切换到由目标基站 提供服务时, 确定所述源基站和所述目标基站是否具有无线网络传输优化 WNTO技术能力;
根据所述确定的所述源基站和所述目标基站各自的 WNTO技术能力, 完 成上行数据或者下行数据的传输。
2、 根据权利要求 1所述的方法, 其特征在于,
所述数据传输装置确定所述源基站和所述目标基站是否具有无线网络传 输优化 WNTO技术能力具体包括:
所述数据传输装置确定所述源基站和所述目标基站均具有 WNTO技术能 力;
所述根据所述确定的所述源基站和所述目标基站各自的 WNTO技术能 力, 完成上行数据或者下行数据的传输具体包括:
所述数据传输装置接收所述目标基站将所述上行数据釆用 WNTO技术进 行压缩后的上行压缩数据, 对所述上行压缩数据进行解压缩后发送;
或者,
所述数据传输装置向所述源基站发送同步命令消息,以使得所述源基站将 指纹库同步给所述目标基站, 其中, 所述同步命令消息携带终端标识和目标基 站标识; 当所述源基站将所述指纹库成功同步给所述目标基站, 则将所述下行 数据釆用 WNTO技术进行压缩;将所述釆用 WNTO技术进行压缩后的下行压 缩数据发送给所述目标基站,使得所述目标基站根据所述指纹库并釆用 WNTO 技术对所述下行压缩数据进行解压缩。
3、 根据权利要求 1所述的方法, 其特征在于,
所述数据传输装置确定所述源基站和所述目标基站是否具有无线网络传 输优化 WNTO技术能力具体包括:
所述数据传输装置确定所述目标基站具有 WNTO技术能力, 且所述源基 站不具有 WNTO技术能力;
所述根据所述确定的所述源基站和所述目标基站各自的 WNTO技术能
力, 完成上行数据或者下行数据的传输具体包括:
所述数据传输装置接收所述目标基站将所述上行数据釆用 WNTO技术进 行压缩后的上行压缩数据, 对所述上行压缩数据进行解压缩后发送;
或者,
所述数据传输装置将所述下行数据釆用 WNTO技术进行压缩, 并将釆用
WNTO技术进行压缩的下行压缩数据发送给所述目标基站, 使得所述目标基 站根据预置指纹库对所述下行压缩数据进行解压缩。
4、 根据权利要求 1所述的方法, 其特征在于,
所述数据传输装置确定所述源基站和所述目标基站是否具有无线网络传 输优化 WNTO技术能力具体包括:
所述数据传输装置确定所述目标基站不具有 WNTO技术能力, 且所述源 基站具有 WNTO技术能力;
所述根据所述确定的所述源基站和所述目标基站各自的 WNTO技术能 力, 完成上行数据或者下行数据的传输具体包括:
所述数据传输装置接收所述目标基站发送的所述上行数据后直接发送; 或者,
直接发送所述下行数据给所述目标基站。
5、 根据权利要求 1-4任一所述的方法, 其特征在于, 所述检测到所述终 端由源基站提供服务切换到由目标基站提供服务时,确定所述源基站和所述目 标基站是否具有所述 WNTO技术能力的过程具体包括:
检测所述终端是否发生所述切换, 若是, 则获取所述终端的标识、 所述源 基站的标识和所述目标基站的标识;
根据所述源基站的标识判断所述源基站是否具有 WNTO技术能力, 以及 根据所述目标基站的标识判断所述目标基站是否具有 WNTO技术能力。
6、 根据权利要求 2所述的方法, 其特征在于, 还包括:
当所述源基站未将所述指纹库成功同步给所述目标基站,则所述数据传输 装置接收所述目标基站发送的所述上行数据后直接发送;
或者, 直接发送所述下行数据给所述目标基站。
7、 一种数据的传输方法, 其特征在于, 包括:
源基站接收同步命令消息,所述同步命令消息携带终端标识和目标基站标
识; 根据所述终端标识提取指纹库, 并将所述指纹库同步给目标基站。
8、 根据权利要求 7所述的方法, 其特征在于, 所述根据所述终端标识提 取指纹库并将所述指纹库同步给目标基站, 具体包括:
根据所述终端标识提取指纹库;
将所述指纹库通过 X2或 S1接口同步给所述目标基站。
9、 根据权利要求 7或 8所述的方法, 其特征在于, 所述将所述指纹库同 步给目标基站的步骤之后, 还包括:
源基站向网络侧的数据传输装置发送同步命令响应消息,所述同步命令响 应消息包括指纹库同步结果。
10、 一种数据传输装置, 其特征在于, 包括:
检测模块, 用于检测终端由源基站提供服务切换到由目标基站提供服务; 确定模块,用于所述检测模块检测到终端由源基站提供服务切换到由目标 基站提供服务时,确定所述源基站和所述目标基站是否具有 WNTO技术能力; 传输模块,用于根据所述确定的所述源基站和所述目标基站各自的 WNTO 技术能力, 完成上行数据或者下行数据的传输。
11、 根据权利要求 10所述的装置, 其特征在于,
所述传输模块,还用于当所述确定模块确定所述目标基站和所述源基站均 具有 WNTO技术能力时,接收所述目标基站将所述上行数据釆用 WNTO技术 压缩后的上行压缩数据, 对所述上行压缩数据进行解压缩后发送;
或者, 向所述源基站发送同步命令消息, 以使得所述源基站将指纹库同步 给所述目标基站, 其中, 所述同步命令消息携带终端标识和目标基站标识; 当 所述源基站将所述指纹库成功同步给所述目标基站, 则将所述下行数据釆用 WNTO技术进行压缩; 将所述釆用 WNTO技术进行压缩后的下行压缩数据发 送给所述目标基站, 使得所述目标基站根据所述指纹库并釆用 WNTO技术对 所述下行压缩数据进行解压缩。
12、 根据权利要求 10所述的装置, 其特征在于,
所述传输模块, 还用于当所述确定模块确定所述目标基站具有 WNTO技 术能力, 且所述源基站不具有 WNTO技术能力时, 接收所述目标基站将所述 上行数据釆用 WNTO技术进行压缩后的上行压缩数据, 对所述上行压缩数据 进行解压缩后发送;
或者,
将所述下行数据釆用 WNTO技术进行压缩,并将釆用 WNTO技术进行压 缩后的下行压缩数据发送给所述目标基站,使得所述目标基站根据预置指纹库 对所述下行压缩数据进行解压缩。
13、 根据权利要求 10所述的装置, 其特征在于,
所述传输模块, 还用于当所述确定模块确定所述目标基站不具有 WNTO 技术能力, 且所述源基站具有 WNTO技术能力时, 接收所述目标基站发送的 上行数据后直接发送;
或者, 直接发送所述下行数据给所述目标基站。
14、 根据权利要求 10-13任一所述的装置, 其特征在于,
所述确定模块,还用于当所述检测模块检测到所述终端由源基站提供服务 切换到由目标基站提供服务时,确定所述终端的标识、所述源基站的标识和所 述目标基站的标识;
根据所述源基站的标识确定所述源基站是否具有 WNTO技术能力, 以及 根据所述目标基站的标识确定所述目标基站是否具有 WNTO技术能力。
15、 根据权利要求 11所述的装置, 其特征在于,
所述传输模块,还用于当所述源基站未将所述指纹库成功同步给所述目标 基站, 则接收所述目标基站发送的上行数据后直接发送;
或者, 直接发送所述下行数据给所述目标基站。
16、 一种数据传输装置, 其特征在于, 所述数据传输装置包括: 总线, 以 及连接到总线的处理器、存储器和接口,其中,所述接口用于和其他网元通信, 所述存储器用于存储指令, 所述处理器执行所述指令用于执行所述权利要求 1-6任一所述的方法。
17、 一种数据传输装置, 其特征在于, 包括:
接收模块, 用于接收同步命令消息, 所述同步命令消息携带终端标识和目 标基站标识;
同步模块, 用于根据所述终端标识提取指纹库, 并将所述指纹库同步给所 述目标基站。
18、 根据权利要求 17所述的数据传输装置, 其特征在于, 还包括: 响应模块, 用于发送同步命令响应消息, 所述同步命令响应消息包括指纹
库同步结果。
19、 一种数据传输系统, 其特征在于, 包括:
如权利要求 10-15任一项所述的数据传输装置 源基站和目标基站。
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CN105637935B (zh) | 2019-09-20 |
EP3104646A1 (en) | 2016-12-14 |
US10419991B2 (en) | 2019-09-17 |
EP3104646A4 (en) | 2017-06-07 |
US20170064596A1 (en) | 2017-03-02 |
CN105637935A (zh) | 2016-06-01 |
EP3104646B1 (en) | 2020-09-30 |
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