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WO2011107057A2 - 数据传输方法、无线接入网设备、无线网关及系统 - Google Patents

数据传输方法、无线接入网设备、无线网关及系统 Download PDF

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Publication number
WO2011107057A2
WO2011107057A2 PCT/CN2011/073082 CN2011073082W WO2011107057A2 WO 2011107057 A2 WO2011107057 A2 WO 2011107057A2 CN 2011073082 W CN2011073082 W CN 2011073082W WO 2011107057 A2 WO2011107057 A2 WO 2011107057A2
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WO
WIPO (PCT)
Prior art keywords
data packet
wireless
module
downlink data
user
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2011/073082
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English (en)
French (fr)
Other versions
WO2011107057A3 (zh
Inventor
袁毅
杨刚华
黄茂胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201180000388XA priority Critical patent/CN102754521A/zh
Priority to PCT/CN2011/073082 priority patent/WO2011107057A2/zh
Priority to EP11750210.4A priority patent/EP2661146A4/en
Publication of WO2011107057A2 publication Critical patent/WO2011107057A2/zh
Publication of WO2011107057A3 publication Critical patent/WO2011107057A3/zh
Priority to US14/049,370 priority patent/US20140036784A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/60—General implementation details not specific to a particular type of compression
    • H03M7/6017—Methods or arrangements to increase the throughput
    • 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
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16—Gateway arrangements

Definitions

  • Embodiments of the present invention relate to wireless communication technologies, and in particular, to a data transmission method, a wireless access network device, a wireless gateway, and a system. Background technique
  • the network system is relayed by a wireless broadband local area network (referred to as a wireless gateway) having a wireless communication function with a cellular wireless broadband network, and the wireless gateway connects multiple access terminals, such as a computer, a portable machine, and the like by wire or wirelessly. Mobile phones, etc.
  • the wired access mode can be an Ethernet network cable mode, and the wireless access mode can be a Wifi access.
  • the wireless gateway aggregates the services of multiple users in the local area network, communicates with the base station of the cellular wireless broadband network, and accesses the public Internet or other specific service network through the cellular wireless local area network. In this way, the wireless gateway supports multiple devices of multiple users in the local area network to simultaneously access the Internet, or multiple devices use multiple services at the same time.
  • the cellular wireless broadband network is not limited. Commonly used are: Enhanced Data Rate for GSM Evolution (EDGE), High-Speed Packet Access (HSPA), and Code Division Multiple Access. Including (Code Division Multiple Access, CDMA for short), Long Term Evolution (LTE) or World Interoperability for Microwave Access (WiMAX), cellular wireless broadband networks are mobile operators. Operated and complies with the 3rd Generation Partnership Project 3 (3GPP3), 3rd Generation Partnership Project 2 (3GPP2) or the Institute of Electrical and Electronics Standard public networks such as Engineers (IEEE). In this network architecture, wired (such as 1000Base-T) and local wireless (such as 802. l ln) can be used inside the local area network, and the physical bandwidth can easily exceed 100Mbps.
  • EDGE Enhanced Data Rate for GSM Evolution
  • HSPA High-Speed Packet Access
  • Code Division Multiple Access Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • LTE Long Term Evolution
  • WiMAX World Interoperability for Microwave Access
  • the ground link of a cellular wireless broadband network can also use optical fiber, etc., and the potential of physical bandwidth is theoretically unlimited.
  • the air interface between the wireless access network of the cellular wireless broadband network and the wireless gateway of the local area network is shared by the mobile user, covers the wide area cellular wireless network, is limited by the wireless propagation environment and the usable frequency width, and has limited bandwidth capability, thus becoming The bandwidth bottleneck of the network system. Due to the air interface bandwidth limitation, the number of simultaneous access to the Internet by terminals carried by the wireless local area network is limited. Summary of the invention
  • Embodiments of the present invention provide a data transmission method, a radio access network device, a wireless gateway, and a system to reduce the impact of air interface bandwidth limitation on data transmission of a network system.
  • the embodiment of the present invention provides a downlink data transmission method of a radio access network, including: when a network side compression and decompression module of a radio access network device receives a downlink data packet transmitted by a radio core network device, and downlink data The package is compressed;
  • the network side compression and decompression module transmits the compressed downlink data packet to the network side radio frequency module, and sends the data through the air interface through the air interface.
  • the embodiment of the present invention further provides an uplink data transmission method of a radio access network, including: when a network side compression and decompression module of a radio access network device acquires uplink data that is received by a network side radio frequency module through an air interface in a wireless manner. When the packet is used, the uplink data packet is decompressed;
  • the network side compression and decompression module transmits the decompressed uplink data packet to the wireless core network device.
  • the embodiment of the present invention further provides an uplink data transmission method of a wireless gateway, including: compressing an uplink data packet when a user side compression and decompression module of the wireless gateway receives an uplink data packet transmitted by a user terminal;
  • the user side compression and decompression module transmits the compressed uplink data packet to the user side radio frequency module, and sends the data through the air interface through the air interface.
  • the embodiment of the present invention further provides a downlink data transmission method of the wireless gateway, including: when the user side compression and decompression module of the wireless gateway acquires the downlink data packet that is received by the user side radio frequency module through the air interface in a wireless manner, The packet is decompressed;
  • the user side compression and decompression module transmits the decompressed downlink data packet to the user terminal.
  • the embodiment of the present invention further provides an uplink data transmission method of a wireless network, including: compressing an uplink data packet when a user side compression and decompression module of the wireless gateway receives an uplink data packet transmitted by a user terminal;
  • the user side compression and decompression module transmits the compressed uplink data packet to the user side radio frequency module, and sends the wireless data through the air interface;
  • the network side compression and decompression module of the radio access network device obtains the uplink data packet that is received by the network side radio frequency module through the air interface, the uplink data packet is decompressed;
  • the network side compression and decompression module transmits the decompressed uplink data packet to the wireless core network device.
  • the embodiment of the present invention further provides a downlink data transmission method of a wireless network, including: when a network side compression and decompression module of a radio access network device receives a downlink data packet transmitted by a wireless core network device, the downlink data packet Compressing;
  • the network side compression and decompression module transmits the compressed downlink data packet to the network side radio frequency module, and sends the data through the air interface;
  • the user-side compression and decompression module of the wireless gateway obtains the downlink data packet that is received by the user-side radio module through the air interface, the downlink data packet is decompressed;
  • the user side compression and decompression module transmits the decompressed downlink data packet to the user terminal.
  • An embodiment of the present invention provides a radio access network device, including:
  • the network side compression and decompression module is configured to compress the downlink data packet when receiving the downlink data packet transmitted by the wireless core network device, and then transmit the downlink data packet to the network side radio frequency module, and When the network side radio frequency module obtains the uplink data packet, the uplink data packet is decompressed and then transmitted to the wireless core network device;
  • the network side radio frequency module is configured to perform radio frequency processing on the downlink data packet transmitted by the network side compression and decompression module, wirelessly transmit through the air interface, and perform radio frequency processing on the uplink data packet that is wirelessly received through the air interface. Processing, transmitting to the network side compression and decompression module.
  • the radio access network device includes a base station unit and a base station controller unit, and the network side compression and decompression module is located in the base station unit or the base station controller unit. .
  • the embodiment of the invention further provides a wireless gateway, including:
  • the user side compression and decompression module is configured to compress the uplink data packet when the uplink data packet transmitted by the user terminal is received by the routing module, and then transmit the uplink data packet to the user side radio frequency module, and is used for the radio frequency from the user side When the module obtains the downlink data packet, the downlink data packet is decompressed, and then transmitted to the user terminal through the routing module;
  • the user-side radio frequency module is configured to perform radio frequency processing on the uplink data packet that is sent by the user-side compression and decompression module, and send the radio data packet through the air interface, and perform radio frequency processing on the downlink data packet that is received through the air interface.
  • the processing is transmitted to the user side compression and decompression module; and the routing module is configured to perform routing processing on the uplink data packet or the downlink data packet that is exchanged between the user side compression and decompression module and the user terminal.
  • the embodiment of the present invention further provides a data transmission network system, including the radio access network device and the wireless gateway provided by the embodiments of the present invention.
  • DRAWINGS 1 is a flowchart of a downlink data transmission method of a radio access network according to Embodiment 1 of the present invention
  • FIG. 2A is a schematic structural diagram of a network system to which an embodiment of the present invention is applied;
  • 2B is a structural diagram of a network system architecture to which an embodiment of the present invention is applied;
  • FIG. 3 is a flow chart of an uplink data transmission method of a radio access network according to Embodiment 2 of the present invention.
  • FIG. 4 is a flowchart of a method for transmitting uplink data of a wireless gateway according to Embodiment 3 of the present invention
  • FIG. 5 is a flowchart of a method for transmitting downlink data of a wireless gateway according to Embodiment 4 of the present invention
  • FIG. 7A is a schematic structural diagram 1 of a radio access network device applicable to a wireless packet switching network according to an embodiment of the present invention
  • FIG. 7B is a schematic structural diagram 2 of a radio access network device applicable to a wireless packet switching network according to an embodiment of the present disclosure
  • FIG. 7C is a schematic diagram of a structure of a radio access network device applicable to a CDMA network according to an embodiment of the present invention.
  • 7D is a schematic diagram 2 of a structure of a radio access network device applicable to a CDMA network according to an embodiment of the present invention
  • FIG. 7E is a schematic diagram 1 of a structure of a radio access network device applicable to a WiMAX wireless network according to an embodiment of the present invention
  • FIG. 7F is a schematic diagram 2 of a structure of a radio access network device applicable to a WiMAX wireless network according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a wireless gateway according to Embodiment 6 of the present invention. detailed description
  • FIG. 1 is a flow chart of a downlink data transmission method of a radio access network according to Embodiment 1 of the present invention.
  • the network system architecture applicable to this embodiment includes two parts: a wireless network device, an internet, and a local area network device.
  • the wireless network can adopt EDGE, HSPA, CDMA, LTE or Wimax, and is a public network operated by mobile operators in compliance with 3GPP/ 3GPP2/IEEE standards.
  • the wireless core network is connected to the Internet.
  • Various servers that provide data services are set up on the Internet. For example, storage servers, compression servers, and multiple content servers.
  • On the LAN side there are mainly wireless gateways and multiple user terminals that interact with the wireless network through the wireless gateway. The user terminal accesses the Internet through a wireless gateway, a wireless access network, and a wireless core network.
  • the embodiment is specifically a downlink data transmission method performed by the radio access network device, which can improve the downlink air bandwidth of the radio access network, and the method includes the following steps:
  • Step 110 When the network side compression and decompression module of the radio access network device receives the downlink data packet transmitted by the wireless core network device, compress the downlink data packet.
  • Step 120 The network side compression and decompression module of the radio access network device transmits the compressed downlink data packet to the network side radio frequency module, and sends the radio data through the air interface.
  • the local area network side can perform corresponding decompression, and perform downlink data packet decompression in the user terminal or in the wireless gateway.
  • the downlink data packet sent through the air interface can be compressed, thereby reducing the bandwidth occupied by the downlink data packet, and correspondingly improving the resource transmission capability of the air interface. Since the compression function is implemented in the radio access network device, on the one hand, it is not necessary to consider whether the server provided by each operator in the wireless core network is compressed or not, and the radio access network device can perform unified compression processing. More versatile and easy Manage, and easily unify compression algorithms. For example, a fixed bit length algorithm, run length encoding can be used.
  • RLE Un-Leng th Encoding
  • LZ77 Low-Leng th Encoding
  • Huffman coding etc.
  • the respective hardware and software do not need to be changed, and the compression function can be directly integrated therebetween, and the improvement of the prior art is small and easy to promote. .
  • FIG. 3 is a flowchart of a method for transmitting uplink data of a radio access network according to Embodiment 2 of the present invention.
  • the embodiment is still applicable to the network system architecture shown in FIG. 2A, and is specifically implemented by a radio access network device, which is wireless.
  • the method for improving the uplink bandwidth of the wireless air interface by the access network includes the following steps: Step 310: When the network side compression and decompression module of the radio access network device obtains the uplink data packet received by the network side radio frequency module through the air interface in a wireless manner The uplink data packet is decompressed.
  • the compressed uplink data packet may be an uplink data packet formed by compression by the user terminal or the wireless gateway on the local area network side.
  • Step 320 The network side compression and decompression module of the radio access network device transmits the decompressed uplink data packet to the wireless core network device.
  • This embodiment is similar to the first embodiment. The difference is that the air interface upstream bandwidth of the radio access network can be improved, and the compressed data packet is decompressed.
  • the decompression process of the uplink data packet and the compression processing of the downlink data packet are simultaneously performed in the radio access network device, thereby simultaneously improving the uplink and downlink bandwidth of the wireless air interface.
  • Embodiment 4 is a flowchart of an uplink data transmission method of a wireless gateway according to Embodiment 3 of the present invention, which is still applicable to the network system architecture shown in FIG. 2A, and specifically, accessing the Internet by a wireless gateway in a local area network.
  • the method can improve the uplink bandwidth of the wireless air interface of the local area network, and includes the following steps:
  • Step 410 When the user side compression and decompression module of the wireless gateway receives the uplink data packet transmitted by the user terminal, compress the uplink data packet.
  • the foregoing step may specifically be that the user terminal submits an access request or uploads data as an uplink data packet, and the routing module routes the uplink data packet to the wireless gateway.
  • Step 420 The user side compression and decompression module of the wireless gateway transmits the compressed uplink data packet to the user-side radio frequency module, and sends the data through the air interface.
  • step 420 after the wireless gateway sends the compressed uplink data packet through the air interface, the wireless network device on the wireless network side, the wireless core network device, or the server on the Internet performs corresponding uplink packet decompression.
  • the uplink data packet sent through the air interface can be compressed, thereby reducing the bandwidth occupied by the uplink data packet, and correspondingly improving the resource transmission capability of the air interface.
  • the compression function is implemented in the wireless gateway, on the one hand, it is not necessary to consider whether the user terminal provided by each operator compresses and which compression algorithm is used, and the wireless gateway can perform unified compression processing, which is more versatile, easy to manage, and easy to use. Unified compression algorithm.
  • the respective hardware and software do not need to be changed, and the compression function can be directly integrated therebetween, and the improvement of the prior art is small and easy to promote.
  • FIG. 5 is a flowchart of a downlink data transmission method of a wireless gateway according to Embodiment 4 of the present invention, which is still applicable to the network system architecture shown in FIG. 2A, and specifically, a wireless air interface performed by a wireless gateway in a local area network.
  • the method for downlink bandwidth includes the following steps:
  • Step 510 Decompress the downlink data packet when the user side compression and decompression module of the wireless gateway obtains the downlink data packet that is received by the user side radio frequency module through the air interface.
  • Step 520 The user side compression and decompression module of the wireless gateway transmits the decompressed downlink data packet to the user terminal, and specifically, the data packet is routed to the user terminal by using the routing module.
  • This embodiment is similar to the third embodiment.
  • the difference is that the air interface downstream bandwidth of the local area network can be improved, and the compressed data packet is decompressed.
  • the decompression processing of the downlink data packet and the compression processing of the uplink data packet are simultaneously performed in the wireless gateway of the local area network, thereby simultaneously improving the uplink and downlink bandwidth of the wireless air interface. That is, after the third embodiment sends an access request or uploads data, the wireless The air interface receives the compressed downlink response, and the wireless gateway decompresses the downlink response data and transmits the downlink response to the user terminal.
  • the radio access network device and the wireless gateway combine to implement compression and decompression, and may only implement a scheme for compressing and decompressing uplink data packets, or may only implement a compression and decompression scheme for downlink data packets, and preferably perform simultaneous execution on the downlink data packet.
  • the radio access network device and the wireless gateway can pre-negotiate the compression and decompression algorithms, and respectively set the compression and decompression modules in the wireless access network device and the wireless gateway, as shown in FIG. 2B.
  • At least a compression and decompression module and a radio frequency module are disposed in the device of the radio access network 10, and the compression and decompression module and the radio frequency module in the radio access network 10 device are recorded as being different from the structure of the wireless gateway.
  • the network side compression and decompression module 1 1 and the network side radio frequency module 12 are provided.
  • the network side radio frequency module 12 performs radio frequency processing on the data packets sent and received by the air interface.
  • the wireless gateway 20 includes at least a routing module 21, a compression and decompression module, and a radio frequency module.
  • the compression and decompression module and the radio frequency module in the wireless gateway 20 are recorded as a user side compression and decompression module 22, And a user side radio frequency module 23.
  • the user side radio frequency module 23 is also used for conventional radio frequency processing, and the routing module 21 is used to provide a data routing function with the user terminal 30.
  • the embodiment of the present invention further provides an uplink data transmission method of the wireless network, which is implemented by the wireless access network and the wireless gateway of the local area network, and specifically can be improved.
  • the method for the uplink bandwidth of the air interface of the wireless network includes the following steps: when the user side compression and decompression module of the wireless gateway receives the uplink data packet transmitted by the user terminal, compressing the uplink data packet;
  • the user side compression and decompression module transmits the compressed uplink data packet to the user side radio frequency module, and sends the data through the air interface through the air interface;
  • the network side compression and decompression module of the radio access network device obtains the uplink data packet that is received by the network side radio frequency module through the air interface, the uplink data packet is decompressed; The network side compression and decompression module transmits the decompressed uplink data packet to the wireless core network device.
  • the embodiment of the present invention further provides a downlink data transmission method for a wireless network, which is implemented by a wireless access network and a wireless gateway of a local area network, and specifically, a method for improving a downlink bandwidth of a wireless network air interface, including the following steps:
  • the network side compression and decompression module of the radio access network device receives the downlink data packet transmitted by the wireless core network device, compressing the downlink data packet;
  • the network side compression and decompression module transmits the compressed downlink data packet to the network side radio frequency module, and sends the data through the air interface;
  • the user-side compression and decompression module of the wireless gateway obtains the downlink data packet that is received by the user-side radio module through the air interface, the downlink data packet is decompressed;
  • the user side compression and decompression module transmits the decompressed downlink data packet to the user terminal.
  • the above technical solution can implement compression and decompression of data packets through the wireless access network and the wireless gateway of the local area network, reduce the size of the data packet, and improve the capability of the wireless air interface to transmit data packets.
  • FIG. 6 is a schematic structural diagram of a radio access network device according to Embodiment 5 of the present invention.
  • the radio access network device includes a compression and decompression module and a radio frequency module, and is distinguished from a wireless gateway as a network side compression and solution.
  • the network side compression and decompression module 610 may be disposed between the wireless core network device and the network side radio frequency module 620, and configured to compress the downlink data packet when receiving the downlink data packet transmitted by the wireless core network device, and then compress the downlink data packet.
  • the network side radio frequency module 620 is transmitted to the network side radio frequency module 620, and is used to decompress the uplink data packet when the uplink data packet is obtained from the network side radio frequency module 620, and then transmitted to the wireless core network device;
  • the compression and decompression module 610 is configured to perform radio frequency processing on the downlink data packet transmitted by the network side compression and decompression module 610, wirelessly transmit through the air interface, and be used to wirelessly receive the uplink data through the air interface.
  • the packet is processed by RF and transmitted to the network side.
  • the compression and decompression module 610 is configured to perform radio frequency processing on the downlink data packet transmitted by the network side compression and decompression module 610, wirelessly transmit through the air interface, and be used to wirelessly receive the uplink data through the air interface.
  • the packet is processed by RF and transmitted to the network side.
  • the compression and decompression module 610 is configured to perform radio frequency processing on the downlink data packet transmitted by the network side compression and decompression module 610,
  • the radio access network device usually includes a base station unit and a base station controller unit, and the compression and decompression module may be located at the base station unit or may be located at the base station controller unit.
  • the radio access network device provided in this embodiment can perform the data transmission method of the radio access network provided by the embodiment of the present invention, and has a corresponding functional module, which can reduce the byte occupied by the data packet through unified compression and decompression processing. , thereby improving the bandwidth capability of the wireless air interface.
  • the composition of the wireless core network and the wireless access network are different, and the location of the compression and decompression modules is also different.
  • the wireless network is composed of a wireless core network and a wireless access network.
  • the wireless core network includes a GPRS (General Packet Radio Service, Genera l Packet Radio Server) service support node (Serving GPRS Supper t Node, SGSN for short) and a Gateway GPRS Supper t Node (GSGN);
  • the network includes a Packet Control Unit (PCU) and a base station.
  • the network side compression and decompression module and the network side radio frequency module can be set in the base station, as shown in Fig. 7A. Alternatively, as shown in FIG. 7B, the network side compression and decompression module is located in the PCU, and the network side radio frequency module is located in the base station.
  • a wireless network is composed of a wireless core network and a radio access network
  • the wireless core network includes a Packet Data Service Node (PDSN)
  • the radio access network includes a PCF (CDMA packet data domain). Control function) and base station.
  • the network side compression and decompression module and the network side radio frequency module may be located at the base station, as shown in Fig. 7C.
  • the network side compression and decompression module may be located at the PCF, and the network side radio frequency module is located at the base station, as shown in FIG. 7D.
  • the wireless network is composed of a wireless core network and a wireless access network.
  • the wireless core network is a Connected Service Network (CSN)
  • the wireless access network is an access service network (Acces s).
  • Service Network ASN
  • ASN-GW Access Service Network Gateway
  • the network side compression and decompression module and the network side radio frequency module are located at the base station, as shown in FIG. 7E.
  • the network side compression and decompression module is located at the ASN-GW, and the network side radio frequency module is located at the base station, as shown in FIG. 7F.
  • FIG. 8 is a schematic structural diagram of a wireless gateway according to Embodiment 6 of the present invention.
  • the wireless gateway includes: a compression and decompression module, a radio frequency module, and a routing module 830.
  • a user side compression and decompression module 810 it is referred to as a user side compression and decompression module 810, a user side radio frequency module 820, and a routing module 830.
  • the user side compression and decompression module 810 may be disposed between the routing module 830 and the user side radio frequency module 820, and configured to compress the uplink data packet when receiving the uplink data packet transmitted by the user terminal by using the routing module 830.
  • the user-side radio frequency module 820 can
  • the user side compression and decompression module 810 is configured to perform radio frequency processing on the uplink data packet transmitted by the user side compression and decompression module 810, wirelessly transmit through the air interface, and be used to receive the wireless packet through the air interface.
  • the downlink data packet is subjected to radio frequency processing and transmitted to the user side compression and decompression module 810.
  • the routing module 830 can interact with the user side compression and decompression module 810 for the user side compression and decompression module 810 and the user terminal.
  • the uplink data packet or the downlink data packet that is exchanged is routed.
  • the wireless gateway provided in this embodiment can perform the data transmission method of the wireless gateway provided by the embodiment of the present invention, and has a corresponding function module, which can reduce the bytes occupied by the data packet through unified compression and decompression processing, thereby improving the wireless air interface. Bandwidth capabilities.
  • the embodiment of the present invention further provides a data transmission network system, including the radio access network device and the wireless gateway provided by any embodiment of the present invention.
  • a data transmission network system including the radio access network device and the wireless gateway provided by any embodiment of the present invention.
  • the bandwidth utilization of the wireless air interface is improved.
  • the local area network accesses the Internet network server through the wireless gateway and the wireless network
  • the air interface uplink and downlink bandwidth utilization between the wireless gateway and the wireless access network is improved, and the number of simultaneous access to the Internet by the user terminal of the local area network is reduced, thereby improving the wireless The number of simultaneous access to the Internet by user terminals carried by the local area network.
  • radio frequency module compression and decompression module, and the like are not the only components in the radio access network device or the wireless gateway, and the radio access network device and the wireless gateway can also set corresponding functional modules according to other needs.
  • the interaction or connection between the above modules may be directly or indirectly connected, and the transmission of the data packet may be direct transmission, or may be transmission after indirect transmission by other network elements or after other required processing.
  • the foregoing storage medium includes: a medium that can store a program code, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Description

数据传输方法、 无线接入网设备、 无线网关及系统 技术领域
本发明实施例涉及无线通信技术， 尤其涉及一种数据传输方法、 无线接 入网设备、 无线网关及系统。 背景技术
随着蜂窝无线宽带网络数据业务能力的提升， 利用蜂窝宽带无线网络迅 速布局一个与公网连接的局域网成为一种选择。
这种网络系统以具有与蜂窝无线宽带网络进行无线通信功能的无线宽带 局域网关（简称无线网关） 为中转， 无线网关通过有线的或无线的方式连接 多个接入终端， 如计算机、 便携机和移动电话等。 有线接入方式可以是以太 网网线方式， 无线接入方式可以为 Wifi接入等。 无线网关向下汇聚局域网多 个用户的业务， 向上与蜂窝无线宽带网络的基站通信， 通过蜂窝无线局域网 络接入到公共互联网或其他特定的业务网络。 这样无线网关在局域网络内部 支持多用户的多个设备同时上互联网， 或者多个设备同时使用多种业务。 蜂 窝无线宽带网络的制式不限， 常用的例如： 改进数据率 GSM服务（ Enhanced Data Rate for GSM Evolution,简称 EDGE )、高速分组接入（ High-Speed Packet Access, 简称 HSPA)、 码分多址接入 ( Code Division Multiple Access, 简 称 CDMA)、 长期演进（Long Term Evolution, 简称 LTE )或全球微波接入互 操作性 ( World Interoperability for Microwave Access, 简称 WiMAX)等 制式， 蜂窝无线宽带网络是移动运营商运营的并且符合第三代合作伙伴计划 ( 3rd Generation Partnership Project 3, 简称 3GPP3)、 第三代合作伙伴 计划 ( 3rd Generation Partnership Project 2, 简称 3GPP2 )或美国电气 及电子工程师学会 ( Institute of Electrical and Electronics Engineers , 简称 IEEE )等标准的公用网络。 在这种网络架构中， 局域网络内部可使用有线 （如 1000Base-T ) 和局 域无线方式（如 802. l ln ), 物理带宽可轻松超过 100Mbps。 蜂窝无线宽带网 络的地面链路也可使用光纤等方式， 物理带宽的潜力理论上是无限制的。 但 是， 蜂窝无线宽带网络的无线接入网与局域网无线网关之间的空口是移动用 户共享的， 覆盖广域蜂窝无线网， 受到无线传播环境和可使用频率宽度的限 制， 带宽能力有限， 因此成为网络系统的带宽瓶颈。 由于空口带宽限制， 无 线局域网所带终端同时访问互联网的数量受限。 发明内容
本发明实施例提供一种数据传输方法、 无线接入网设备、 无线网关及系 统， 以降低空口带宽限制对网络系统数据传输的影响。
本发明实施例提供了一种无线接入网的下行数据传输方法， 包括： 当无线接入网设备的网络侧压缩与解压缩模块接收到无线核心网设备传 输的下行数据包时， 对下行数据包进行压缩；
所述网络侧压缩与解压缩模块将压缩后的下行数据包传输至网络侧射频 模块， 通过空口以无线方式发送。
本发明实施例还提供了一种无线接入网的上行数据传输方法， 包括： 当无线接入网设备的网络侧压缩与解压缩模块获取到网络侧射频模块通 过空口以无线方式接收的上行数据包时， 对上行数据包进行解压缩；
所述网络侧压缩与解压缩模块将解压缩后的上行数据包传输给无线核心 网设备。
本发明实施例还提供了一种无线网关的上行数据传输方法， 包括： 当无线网关的用户侧压缩与解压缩模块接收到用户终端传输的上行数据 包时， 对上行数据包进行压缩；
所述用户侧压缩与解压缩模块将压缩后的上行数据包传输至用户侧射频 模块， 通过空口以无线方式发送。 本发明实施例还提供了一种无线网关的下行数据传输方法， 包括： 当无线网关的用户侧压缩与解压缩模块获取到用户侧射频模块通过空口 以无线方式接收的下行数据包时， 对下行数据包进行解压缩；
所述用户侧压缩与解压缩模块将解压缩后的下行数据包传输给用户终 端。
本发明实施例还提供了一种无线网络的上行数据传输方法， 包括： 当无线网关的用户侧压缩与解压缩模块接收到用户终端传输的上行数据 包时， 对上行数据包进行压缩；
所述用户侧压缩与解压缩模块将压缩后的上行数据包传输至用户侧射频 模块， 通过空口以无线方式发送；
当无线接入网设备的网络侧压缩与解压缩模块获取到网络侧射频模块通 过空口以无线方式接收的上行数据包时， 对上行数据包进行解压缩；
所述网络侧压缩与解压缩模块将解压缩后的上行数据包传输给无线核心 网设备。
本发明实施例还提供了一种无线网络的下行数据传输方法， 包括： 当无线接入网设备的网络侧压缩与解压缩模块接收到无线核心网设备传 输的下行数据包时， 对下行数据包进行压缩；
所述网络侧压缩与解压缩模块将压缩后的下行数据包传输至网络侧射频 模块， 通过空口以无线方式发送；
当无线网关的用户侧压缩与解压缩模块获取到用户侧射频模块通过空口 以无线方式接收的下行数据包时， 对下行数据包进行解压缩；
所述用户侧压缩与解压缩模块将解压缩后的下行数据包传输给用户终 端。
本发明实施例提供了一种无线接入网设备， 包括：
网络侧压缩与解压缩模块， 用于当接收到无线核心网设备传输的下行数 据包时， 对下行数据包进行压缩， 而后传输给网络侧射频模块， 且用于当从 所述网络侧射频模块获取到上行数据包时， 对上行数据包进行解压缩， 而后 传输给无线核心网设备；
网络侧射频模块， 用于将所述网络侧压缩与解压缩模块传输的下行数据 包进行射频处理， 通过空口以无线方式发送， 且用于将通过空口以无线方式 接收到的上行数据包进行射频处理， 传输给所述网络侧压缩与解压缩模块。
如上所述的无线接入网设备， 优选的是所述无线接入网设备包括基站单 元和基站控制器单元， 所述网络侧压缩与解压缩模块位于所述基站单元或所 述基站控制器单元。
本发明实施例还提供了一种无线网关， 包括：
用户侧压缩与解压缩模块， 用于当通过路由模块接收到用户终端传输的 上行数据包时， 对上行数据包进行压缩， 而后传输给用户侧射频模块， 且用 于当从所述用户侧射频模块获取到下行数据包时，对下行数据包进行解压缩， 而后通过路由模块传输给用户终端；
用户侧射频模块， 用于将所述用户侧压缩与解压缩模块传输的上行数据 包进行射频处理， 通过空口以无线方式发送， 且用于将通过空口以无线方式 接收到的下行数据包进行射频处理， 传输给所述用户侧压缩与解压缩模块； 路由模块， 用于对所述用户侧压缩与解压缩模块和用户终端之间交互的 上行数据包或下行数据包进行路由处理。
本发明实施例还提供了一种数据传输网络系统， 包括本发明实施例所提 供的无线接入网设备和无线网关。
本发明实施例提供的无线接入网与无线网关的数据传输方法、 设备及系 统， 通过在无线接入网设备或无线网关中设置压缩功能， 可以对通过空口发 送的数据包进行压缩， 从而减小数据包所占用的带宽， 相应地提高了空口的 资源传输能力。 附图说明 图 1 为本发明实施例一提供的无线接入网的下行数据传输方法的流程 图；
图 2A为本发明实施例所适用的网络系统架构示意图；
图 2B为本发明实施例所适用的网络系统架构的结构图；
图 3 为本发明实施例二提供的无线接入网的上行数据传输方法的流程 图；
图 4为本发明实施例三提供的无线网关的上行数据传输方法的流程图； 图 5为本发明实施例四提供的无线网关的下行数据传输方法的流程图； 图 6为本发明实施例五提供的无线接入网设备的结构示意图；
图 7A 为本发明实施例提供的无线接入网设备适用于无线分组交换网络 的结构示意图一；
图 7B 为本发明实施例提供的无线接入网设备适用于无线分组交换网络 的结构示意图二；
图 7C为本发明实施例提供的无线接入网设备适用于 CDMA网络的结构示 意图一；
图 7D为本发明实施例提供的无线接入网设备适用于 CDMA网络的结构示 意图二；
图 7E为本发明实施例提供的无线接入网设备适用于 WiMAX无线网络的结 构示意图一；
图 7F为本发明实施例提供的无线接入网设备适用于 WiMAX无线网络的结 构示意图二；
图 8为本发明实施例六提供的无线网关的结构示意图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚， 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， 本领域普通技术人员在没有作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。
实施例一
图 1 为本发明实施例一提供的无线接入网的下行数据传输方法的流程 图。
本实施例所适用的网络系统架构如图 2A所示， 包括无线网络设备、 互联 网和局域网络设备两部分。 在无线网络侧， 无线网络可以采用 EDGE、 HSPA、 CDMA, LTE或 Wimax等制式， 是移动运营商运营的符合 3GPP/ 3GPP2/ IEEE等 标准的公用网络。 无线核心网与互联网相连。 互联网中设置各种提供数据业 务的服务器。 例如存储服务器、 压缩服务器和多个内容服务器等。 在局域网 络侧主要涉及无线网关，以及通过无线网关与无线网络交互的多个用户终端。 用户终端通过无线网关、 无线接入网和无线核心网来访问互联网。
本实施例具体是由无线接入网设备执行的下行数据传输方法， 能够提升 无线接入网的无线空口下行带宽， 该方法包括如下步骤：
步骤 110、 当无线接入网设备的网络侧压缩与解压缩模块接收到无线核心 网设备传输的下行数据包时， 对下行数据包进行压缩；
步骤 120、 无线接入网设备的网络侧压缩与解压缩模块将压缩后的下行 数据包传输至网络侧射频模块， 通过空口以无线方式发送。
上述步骤 120后， 局域网侧可进行相应地解压缩， 在用户终端中或在无 线网关中执行下行数据包解压缩。
本发明实施例通过在无线接入网设备中设置压缩功能， 可以对通过空口 发送的下行数据包进行压缩， 从而减小下行数据包所占用的带宽， 相应地提 高了空口的资源传输能力。 由于压缩功能在无线接入网设备中实现， 一方面 无需考虑在无线核心网中各运营商提供的服务器是否进行压缩以及采用何种 压缩算法， 可以由无线接入网设备进行统一的压缩处理， 通用性更强， 易于 管理， 且易于统一压缩算法。 例如可以采用固定位长算法、 行程长度编码
( Run-Leng th Encoding , 简称 RLE )算法、 LZ77算法、 霍夫曼编码等。 另一 方面， 对于无线核心网和无线接入网的射频发送设备而言， 其各自的硬件和 软件均无需发生变化， 直接在其间集成压缩功能即可， 对现有技术的改进小， 易于推广。
实施例二
图 3 为本发明实施例二提供的无线接入网的上行数据传输方法的流程 图， 本实施例仍适用于图 2A所示的网络系统架构， 具体由无线接入网设备来 执行， 是无线接入网提升无线空口上行带宽的方法， 具体包括如下步骤： 步骤 310、 当无线接入网设备的网络侧压缩与解压缩模块获取到网络侧射 频模块通过空口以无线方式接收的上行数据包时，对上行数据包进行解压缩； 上述步骤 310中，压缩的上行数据包可以是局域网络侧由用户终端或无线 网关压缩形成的上行数据包。
步骤 320、无线接入网设备的网络侧压缩与解压缩模块将解压缩后的上行 数据包传输给无线核心网设备。
本实施例与实施例一类似， 区别是可以提升无线接入网的空口上行带宽， 对压缩的数据包进行解压缩处理。
优选是在无线接入网设备中同时执行上行数据包的解压缩处理和下行数 据包的压缩处理， 从而同时提高无线空口的上行和下行带宽。
实施例三
图 4为本发明实施例三提供的无线网关的上行数据传输方法的流程图， 其仍然可适用于图 2A所示的网络系统架构，且具体是由局域网中的无线网关 来执行的访问互联网的方法， 可提升局域网无线空口上行带宽， 包括如下步 骤：
步骤 410、 当无线网关的用户侧压缩与解压缩模块接收到用户终端传输的 上行数据包时， 对上行数据包进行压缩； 上述步骤具体可以是用户终端提交访问请求或上载数据作为上行数据 包， 由路由模块将上行数据包路由至无线网关。
步骤 420、 无线网关的用户侧压缩与解压缩模块将压缩后的上行数据包 传输至用户侧射频模块， 通过空口以无线方式发送。
上述步骤 420中， 无线网关将压缩后的上行数据包通过空口发送后， 相 应地由无线网络侧的无线接入网设备、 无线核心网设备或者互联网的服务器 进行上行数据包解压缩。
本实施例通过在无线网关中设置压缩功能， 可以对通过空口发送的上行 数据包进行压缩， 从而减小上行数据包所占用的带宽， 相应地提高了空口的 资源传输能力。 由于压缩功能在无线网关中实现， 一方面无需考虑各运营商 提供的用户终端是否进行压缩以及采用何种压缩算法， 可以由无线网关进行 统一的压缩处理， 通用性更强， 易于管理， 且易于统一压缩算法。 另一方面， 对于用户终端和无线网关的射频发送设备而言， 其各自的硬件和软件均无需 发生变化， 直接在其间集成压缩功能即可， 对现有技术的改进小， 易于推广。
实施例四
图 5为本发明实施例四提供的无线网关的下行数据传输方法的流程图， 其仍然可适用于图 2A所示的网络系统架构，且具体是由局域网中的无线网关 来执行的提升无线空口下行带宽的方法， 包括如下步骤：
步骤 510、 当无线网关的用户侧压缩与解压缩模块获取到用户侧射频模块 通过空口以无线方式接收的下行数据包时， 对下行数据包进行解压缩；
步骤 520、无线网关的用户侧压缩与解压缩模块将解压缩后的下行数据包 传输给用户终端， 具体可通过路由模块将数据包路由至用户终端。
本实施例与实施例三类似， 区别是可以提升局域网的空口下行带宽， 对 压缩的数据包进行解压缩处理。 优选是在局域网的无线网关中同时执行下行 数据包的解压缩处理和上行数据包的压缩处理， 从而同时提高无线空口的上 行和下行带宽。 即如实施例三上行发送了访问请求或上载数据后， 通过无线 空口接收压缩后的下行响应， 无线网关可解压缩下行响应数据， 并下行传输 给用户终端。
本发明实施例所提供的无线接入网和无线网关各自的上下行数据传输方 法。 优选是无线接入网设备和无线网关结合实施压缩和解压缩的方案， 可以 仅实施对上行数据包压缩和解压缩的方案， 也可以仅实施对下行数据包的压 缩和解压缩方案， 优选是同时执行对上行数据包和下行数据包的压缩和解压 缩方案， 最大化的节约带宽。
无线接入网设备和无线网关可以预先协商设定压缩和解压缩算法， 在无 线接入网设备和无线网关中分别设置压缩与解压缩模块， 如图 2B所示。 在无 线接入网 10的设备中至少设置压缩与解压缩模块、 以及射频模块， 为区别于 无线网关的结构， 将无线接入网 1 0设备中的压缩与解压缩模块、 以及射频模 块记为网络侧压缩与解压缩模块 1 1、 以及网络侧射频模块 12。 网络侧射频模 块 12对空口收发的数据包进行射频处理。 在无线网关 20中至少包括路由模块 21、 压缩与解压缩模块、 以及射频模块， 区别起见， 将无线网关 20中的压缩 与解压缩模块、 以及射频模块记为用户侧压缩与解压缩模块 22、 以及用户侧 射频模块 23。 用户侧射频模块 23同样用于常规的射频处理， 路由模块 21用于 提供与用户终端 30之间的数据路由功能。
基于无线接入网设备和无线网关的压缩与解压缩功能， 本发明实施例还 提供了一种无线网络的上行数据传输方法， 由无线接入网和局域网的无线网 关配合实现， 具体是可以提升无线网络空口上行带宽的方法， 包括如下步骤： 当无线网关的用户侧压缩与解压缩模块接收到用户终端传输的上行数据 包时， 对上行数据包进行压缩；
用户侧压缩与解压缩模块将压缩后的上行数据包传输至用户侧射频模 块， 通过空口以无线方式发送；
当无线接入网设备的网络侧压缩与解压缩模块获取到网络侧射频模块通 过空口以无线方式接收的上行数据包时， 对上行数据包进行解压缩； 所述网络侧压缩与解压缩模块将解压缩后的上行数据包传输给无线核心 网设备。
本发明实施例还提供了一种无线网络的下行数据传输方法， 由无线接入 网和局域网的无线网关配合实现， 具体是可以提升无线网络空口下行带宽的 方法， 包括如下步骤：
当无线接入网设备的网络侧压缩与解压缩模块接收到无线核心网设备传 输的下行数据包时， 对下行数据包进行压缩；
所述网络侧压缩与解压缩模块将压缩后的下行数据包传输至网络侧射频 模块， 通过空口以无线方式发送；
当无线网关的用户侧压缩与解压缩模块获取到用户侧射频模块通过空口 以无线方式接收的下行数据包时， 对下行数据包进行解压缩；
所述用户侧压缩与解压缩模块将解压缩后的下行数据包传输给用户终 端。
上述技术方案可以通过无线接入网与局域网的无线网关配合实施数据包 的压缩与解压缩， 减小数据包的大小， 提升无线空口传输数据包的能力。
实施例五
图 6为本发明实施例五提供的无线接入网设备的结构示意图，该无线接入 网设备包括压缩与解压缩模块和射频模块， 为区别于无线网关， 将其记为网 络侧压缩与解压缩模块 610和网络侧射频模块 620。 其中， 网络侧压缩与解压 缩模块 610可以设置在无线核心网设备和网络侧射频模块 620之间， 用于当接 收到无线核心网设备传输的下行数据包时， 对下行数据包进行压缩， 而后传 输给网络侧射频模块 620 , 且用于当从网络侧射频模块 620获取到上行数据包 时， 对上行数据包进行解压缩， 而后传输给无线核心网设备； 网络侧射频模 块 620可以与网络侧压缩与解压缩模块 610相交互， 用于将网络侧压缩与解压 缩模块 610传输的下行数据包进行射频处理， 通过空口以无线方式发送， 且用 于将通过空口以无线方式接收到的上行数据包进行射频处理， 传输给网络侧 压缩与解压缩模块 610。
无线接入网设备通常包括基站单元和基站控制器单元， 该压缩与解压缩 模块可以位于基站单元， 或者也可以位于基站控制器单元。
本实施例提供的无线接入网设备可以执行本发明实施例提供的无线接入 网的数据传输方法， 具备相应的功能模块， 能够通过统一的压缩和解压缩处 理， 减小数据包占用的字节， 从而提升无线空口的带宽能力。
艮据无线网络的不同， 其无线核心网和无线接入网的组成也不同， 压缩 与解压缩模块的设置位置也不同。
以 GRPS、 EDGE, HSPA的无线分组交换网络为例， 无线网络由无线核心网 和无线接入网构成。 无线核心网包括 GPRS (通用分组无线业务， Genera l Packet Radio Servi ce )业务支撑节点 （Serving GPRS Suppor t Node, 简称 SGSN )和网关 GPRS支持节点 ( Gateway GPRS Suppor t Node, 简称 GSGN ); 无线接入网包括分组控制单元（Package Control Uni t , 简称 PCU )和基站 等。 网络侧压缩与解压缩模块和网络侧射频模块可设置在基站中， 如图 7A所 示。 或者， 如图 7B所示， 网络侧压缩与解压缩模块位于 PCU, 网络侧射频模 块位于基站。
以 CDMA无线网络为例， 无线网络由无线核心网和无线接入网构成， 无线 核心网包括分组数据服务节点 ( Packet Da ta Serving Node, 简称 PDSN )， 无 线接入网包括 PCF ( CDMA分组数据域控制功能）和基站等。 网络侧压缩与解 压缩模块和网络侧射频模块可位于基站， 如图 7C所示。 或者， 在 CDMA网络 中， 网络侧压缩与解压缩模块可位于 PCF， 网络侧射频模块位于基站， 如图 7D所示。
对应 WiMAX无线网络时， 无线网络由无线核心网和无线接入网构成， 无 线核心网即连接服务网络 ( Connect ivi ty Serv ice Network, 简称 CSN )，无 线接入网即接入服务网络（Acces s Service Network , 简称 ASN )，包括连接 服务网络网关 （Acces s Service Network Gateway, 简称 ASN-GW )和基站等。 网络侧压缩与解压缩模块和网络侧射频模块位于基站， 如图 7E所示。 或者， 同样是 WiMAX网络， 网络侧压缩与解压缩模块位于 ASN-GW, 网络侧射频模块 位于基站， 如图 7F所示。
实施例六
图 8为本发明实施例六提供的无线网关的结构示意图， 该无线网关包括： 压缩与解压缩模块、 射频模块和路由模块 830。 为区别起见， 记为用户侧压缩 与解压缩模块 810、 用户侧射频模块 820和路由模块 830。 其中， 用户侧压缩与 解压缩模块 810可以设置在路由模块 830和用户侧射频模块 820之间，用于当通 过路由模块 830接收到用户终端传输的上行数据包时， 对上行数据包进行压 缩， 而后传输给用户侧射频模块 820, 且用于当从用户侧射频模块 820获取到 下行数据包时， 对下行数据包进行解压缩， 而后通过路由模块 830传输给用户 终端； 用户侧射频模块 820可以与用户侧压缩与解压缩模块 810相交互， 用于 将用户侧压缩与解压缩模块 810传输的上行数据包进行射频处理，通过空口以 无线方式发送， 且用于将通过空口以无线方式接收到的下行数据包进行射频 处理， 传输给用户侧压缩与解压缩模块 810; 路由模块 830可以与用户侧压缩 与解压缩模块 810相交互， 用于对用户侧压缩与解压缩模块 810和用户终端之 间交互的上行数据包或下行数据包进行路由处理。
本实施例提供的无线网关可以执行本发明实施例提供的无线网关的数据 传输方法， 具备相应的功能模块， 能够通过统一的压缩和解压缩处理， 减小 数据包占用的字节， 从而提升无线空口的带宽能力。
本发明实施例还提供了一种数据传输网络系统， 包括本发明任意实施例 所提供的无线接入网设备和无线网关。通过无线网络侧和局域网络侧的配合， 提高了无线空口的带宽利用率。 当局域网通过无线网关和无线网络访问互联 网网络服务器时， 无线网关与无线接入网间的空口上、 下行带宽利用率得到 提高， 局域网所带用户终端同时访问互联网的数量限制减小， 提升了无线局 域网所带用户终端同时访问互联网的数量。 本领域技术人员可以理解， 上述诸如射频模块、 压缩与解压缩模块等并 非无线接入网设备或无线网关中唯一组成结构， 无线接入网设备和无线网关 还可以根据其他需要设置相应的功能模块。 上述模块之间的交互关系或连接 可以是直接或间接相连， 数据包的传输可以是直接传输， 也可以是经过其他 网元间接的传输或经过其他所需处理之后的传输。
本领域普通技术人员可以理解： 实现上述方法实施例的全部或部分步骤 可以通过程序指令相关的硬件来完成， 前述的程序可以存储于一计算机可读 取存储介质中， 该程序在执行时， 执行包括上述方法实施例的步骤； 而前述 的存储介质包括： R0M、 RAM, 磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是： 以上实施例仅用以说明本发明的技术方案， 而非对其 限制； 尽管参照前述实施例对本发明进行了详细的说明， 本领域的普通技术 人员应当理解： 其依然可以对前述各实施例所记载的技术方案进行修改， 或 者对其中部分技术特征进行等同替换； 而这些修改或者替换， 并不使相应技 术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims

权 利 要 求 书
1、 一种无线接入网的下行数据传输方法， 其特征在于， 包括： 当无线接入网设备的网络侧压缩与解压缩模块接收到无线核心网设备传 输的下行数据包时， 对下行数据包进行压缩；
所述网络侧压缩与解压缩模块将压缩后的下行数据包传输至网络侧射频 模块， 通过空口以无线方式发送。
2、 一种无线接入网的上行数据传输方法， 其特征在于， 包括： 当无线接入网设备的网络侧压缩与解压缩模块获取到网络侧射频模块通 过空口以无线方式接收的上行数据包时， 对上行数据包进行解压缩；
所述网络侧压缩与解压缩模块将解压缩后的上行数据包传输给无线核心 网设备。
3、 一种无线网关的上行数据传输方法， 其特征在于， 包括： 当无线网关的用户侧压缩与解压缩模块接收到用户终端传输的上行数据 包时， 对上行数据包进行压缩；
所述用户侧压缩与解压缩模块将压缩后的上行数据包传输至用户侧射频 模块， 通过空口以无线方式发送。
4、 一种无线网关的下行数据传输方法， 其特征在于， 包括： 当无线网关的用户侧压缩与解压缩模块获取到用户侧射频模块通过空口 以无线方式接收的下行数据包时， 对下行数据包进行解压缩；
所述用户侧压缩与解压缩模块将解压缩后的下行数据包传输给用户终 端。
5、 一种无线网络的上行数据传输方法， 其特征在于， 包括： 当无线网关的用户侧压缩与解压缩模块接收到用户终端传输的上行数据 包时， 对上行数据包进行压缩；
所述用户侧压缩与解压缩模块将压缩后的上行数据包传输至用户侧射频 模块， 通过空口以无线方式发送； 当无线接入网设备的网络侧压缩与解压缩模块获取到网络侧射频模块通 过空口以无线方式接收的上行数据包时， 对上行数据包进行解压缩；
所述网络侧压缩与解压缩模块将解压缩后的上行数据包传输给无线核心 网设备。
6、 一种无线网络的下行数据传输方法， 其特征在于， 包括： 当无线接入网设备的网络侧压缩与解压缩模块接收到无线核心网设备传 输的下行数据包时， 对下行数据包进行压缩；
所述网络侧压缩与解压缩模块将压缩后的下行数据包传输至网络侧射频 模块， 通过空口以无线方式发送；
当无线网关的用户侧压缩与解压缩模块获取到用户侧射频模块通过空口 以无线方式接收的下行数据包时， 对下行数据包进行解压缩；
所述用户侧压缩与解压缩模块将解压缩后的下行数据包传输给用户终 端。
7、 一种无线接入网设备， 其特征在于， 包括：
网络侧压缩与解压缩模块， 用于当接收到无线核心网设备传输的下行数 据包时， 对下行数据包进行压缩， 而后传输给网络侧射频模块， 且用于当从 所述网络侧射频模块获取到上行数据包时， 对上行数据包进行解压缩， 而后 传输给无线核心网设备；
网络侧射频模块， 用于将所述网络侧压缩与解压缩模块传输的下行数据 包进行射频处理， 通过空口以无线方式发送， 且用于将通过空口以无线方式 接收到的上行数据包进行射频处理， 传输给所述网络侧压缩与解压缩模块。
8、 根据权利要求 7所述的无线接入网设备， 其特征在于： 所述无线接 入网设备包括基站单元和基站控制器单元， 所述网络侧压缩与解压缩模块位 于所述基站单元或所述基站控制器单元。
9、 一种无线网关， 其特征在于， 包括：
用户侧压缩与解压缩模块， 用于当通过路由模块接收到用户终端传输的 上行数据包时， 对上行数据包进行压缩， 而后传输给用户侧射频模块， 且用 于当从所述用户侧射频模块获取到下行数据包时，对下行数据包进行解压缩， 而后通过路由模块传输给用户终端；
用户侧射频模块， 用于将所述用户侧压缩与解压缩模块传输的上行数据 包进行射频处理， 通过空口以无线方式发送， 且用于将通过空口以无线方式 接收到的下行数据包进行射频处理， 传输给所述用户侧压缩与解压缩模块； 路由模块， 用于对所述用户侧压缩与解压缩模块和用户终端之间交互的 上行数据包或下行数据包进行路由处理。
10、 一种数据传输网络系统， 其特征在于， 包括： 权利要求 7或 8所述 的无线接入网设备和权利要求 9所述的无线网关。
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US20140036784A1 (en) 2014-02-06
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WO2011107057A3 (zh) 2012-03-22
CN102754521A (zh) 2012-10-24

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