CN202799170U - Device used for mobile interaction between LTE (long term evolution) and HRPD (high rate packet data) wireless network - Google Patents
Device used for mobile interaction between LTE (long term evolution) and HRPD (high rate packet data) wireless network Download PDFInfo
- Publication number
- CN202799170U CN202799170U CN2012200486139U CN201220048613U CN202799170U CN 202799170 U CN202799170 U CN 202799170U CN 2012200486139 U CN2012200486139 U CN 2012200486139U CN 201220048613 U CN201220048613 U CN 201220048613U CN 202799170 U CN202799170 U CN 202799170U
- Authority
- CN
- China
- Prior art keywords
- hrpd
- lte
- module
- wireless network
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The utility model discloses a device used for mobile interaction between LTE (long term evolution) and HRPD (high rate packet date) wireless network, which comprises a radio frequency module, a digital tuner, a decoder, an LTE protocol analyzing unit, an HRPD protocol analyzing unit, a data packet filter, an LTE/HRPD base band conversion module, an LTE protocol configuration stack, an HRPD protocol configuration stack, a data packaging unit and a power supply module. The device is used for mobile interaction between the LTE and the HRPD wireless network, thereby enabling a user terminal to realize seamless move and high-speed data transmission between two kinds of network, and realizing efficient utilization of the two kinds of network. The device disclosed by the utility model solves the defects that mobile interaction between the LTE and the HRPD wireless network can not be realized, and communication requirements of users can not be met, and has the advantages of low cost, low power consumption and the like.
Description
Technical field
The utility model relates to application between wireless network communications system, particularly provides a kind of for the mutual device of LTE and HRPD wireless network mobility.
Background technology
Now, HRPD (High Rate Packet Data, HRPD (high rate packet data)) wireless network is being used all over the world, to satisfy people to the demand of high-speed radio multimedia communication service.HRPD has the following advantages: peak rate is high, large, supported user is many for capacity.HRPD has adopted new modulation technique aloft and has increased the methods such as data rate control, optimizing scheduling and time division multiplexing, so that the message transmission rate on the air interface has had large increase based on CDMA technology on the interface.It can adopt dedicated data channel to support high-speed packet data service at a CDMA carrier frequency, and the forward direction peak data rate can reach 2.4576Mbit/s, oppositely supports unique user peak data rate 153.6kbit/s.The service application of HRPD comprises video telephone, data broadcast service etc.HRPD has also reduced campus network when greatly improving the availability of frequency spectrum and data rate, become common carrier and the higher wireless network of user's attention rate.
Simultaneously, as the standard of future to the evolution of 4G Cellular Networks wireless communication technology, LTE (Long Term Evolution, Long Term Evolution) improves and strengthened the aerial access technology of 3G, adopt OFDM and MIMO as the sole criterion of its wireless network evolution, the peak rate of descending 326Mbit/s and up 86Mbit/s can be provided under the 20MHz spectral bandwidth, improve the performance of Cell Edge User, improve cell capacity and reduce system delay.LTE is low with its cost, investment risk is less, the advantage of high power capacity, longer transmission range and perfect security mechanism will be applied to wide geographic area, simultaneously towards application such as broadband access, remote teaching and medical treatment, enterprise/community are interconnected.
When surprising change was brought in whole wireless communication field, various wireless communication systems may provide complete covering jointly with other wireless systems.But this moment, the seamless traffic smoothing switching that also needs between Radio Network System to be implemented between multiple network is mobile, could improve like this and realize that internetwork mobility is mutual.Such as, the HRPD wireless network has been disposed in some place, but but do not have the LTE network coverage, when the user move to from the place that LTE covers without the LTE network coverage have but that the HRPD wireless network covers local time, this user terminal still can't use the communication service of HRPD network.Therefore, existing these technology all exist the shortcoming that is difficult to provide the mobility interactive service, and raising LTE that can not be real and the utilization ratio of HRPD network also reduce the network operation cost.Find out thus, develop and to realize in LTE and HRPD wireless network that the mutual equipment of mobility is proper efficient solution, so, just can finish the mobile carrying of high speed transmission data and efficient algorithm for voice signal between LTE and the HRPD wireless network, can be so that large capacity and professional abundant business satisfy communicating requirement.
The utility model content
The utility model is for the deficiencies in the prior art, proposes a kind of for the mutual device of LTE and HRPD wireless network mobility.The utility model can provide LTE and HRPD wireless network mobility mutual for the user, so that user terminal can be implemented in two kinds of internetwork Seamless Mobiles and high speed data transfer, realized the mutual supplement with each other's advantages of two kinds of networks, to reach maximum network coverage and to increase operation rate.
The technical solution of the utility model is:
A kind of for the mutual device of LTE and HRPD wireless network mobility, it comprises radio-frequency module, digital tuner, decoder, LTE protocol analysis unit, HRPD protocol analysis unit, packet filtering, LTE/HRPD baseband-converted module, LTE protocol configuration stack, HRPD protocol configuration stack, data encapsulation unit, power module.It is characterized in that: described radio-frequency module is connected to the first end of described digital tuner, and described radio-frequency module is two-way connection with being connected digital tuner, and information can be in two intermodule input and output; Second end (output) of described digital tuner is connected to the input of described decoder; Described LTE protocol analysis unit and described HRPD protocol analysis unit form a standalone module, and the input of this module is connected to the output of described decoder, and the output of this module is connected to the input of described packet filtering; The output of described packet filtering connects the input of described LTE/HRPD baseband-converted module; Described LTE protocol configuration stack and described HRPD protocol configuration stack form a standalone module, and the input of this module is connected to the output of described LTE/HRPD baseband-converted module, and the output of this module is connected to the input of described data encapsulation unit; The output of described data encapsulation unit is connected to described digital tuner the 3rd end (input); Described power module is connected to supply line's plate of whole apparatus system, is whole device power supply.
When the LTE user terminal move to from the place that the LTE wireless network covers the HRPD network coverage local time, it is mutual to finish two kinds of internetwork mobility, so that user terminal can use the service of HRPD network.At this moment, described radio-frequency module receives the wireless signal of HRPD network, just with the radio signal transmission that receives to described digital tuner.Described digital tuner is intermediate-freuqncy signal with the radiofrequency signal down-converted just, the operations such as settling signal frequency conversion, filtering and automatic gain control.Described decoder carries out information decoding to the signal that described digital tuner transmits, carry out IP and remove encapsulation, demultiplexing, so that the data message of follow-up compatibility to be provided, and be the HRPD wireless network signal from this network signal of decoded information acquisition, so can start the HRPD protocol analysis unit that is connected to the decoder output.Described HRPD protocol analysis unit carries out the parsing of agreement cell to the information flow of input, the output packet.Described packet filtering is just filtered packet, and correction of data bag mistake reduces packet loss and rascal behavior.Described LTE/HRPD baseband-converted module is carried out the physical layer Base-Band Processing to the HRPD signal stream of input, carry out the treatment steps such as digital demodulation, deinterleaving, descrambling, and the bit stream information of processing carried out again LTE signal stream modulate, interweaved, scrambling is processed, be output as the LTE wireless network data and flow.Then, described LTE protocol configuration stack carries out protocol code with the data flow of described LTE/HRPD baseband-converted module output according to the LTE agreement, and carries out data compression and packet encapsulation by described data encapsulation unit, then sends described digital tuner to.Described digital tuner is processed the frequency conversion of packet settling signal, filtering and automatic gain control, then by described radio-frequency module signal is launched, and receives its discernible LTE signal for user terminal.So the LTE user terminal just can be enjoyed data transport service in HRPD wireless network the inside.
In like manner, the HRPD user terminal also can be enjoyed data transport service in LTE wireless network the inside.When the HRPD user terminal move to from the place that the HRPD wireless network covers the LTE network coverage local time, described radio-frequency module receives the wireless signal of LTE network, just with the radio signal transmission that receives to described digital tuner.Described digital tuner is intermediate-freuqncy signal with the radiofrequency signal down-converted just, the operations such as settling signal frequency conversion, filtering and automatic gain control.Described decoder carries out information decoding to the signal that described digital tuner transmits, carry out IP and remove encapsulation, demultiplexing, so that the data message of follow-up compatibility to be provided, and be the LTE wireless network signal from this network signal of decoded information acquisition, so can start the LTE protocol analysis unit that is connected to the decoder output.Described LTE protocol analysis unit carries out the parsing of agreement cell to the information flow of input, the output packet.Described packet filtering is just filtered PDU clear data bag, and correction of data bag mistake reduces packet loss and rascal behavior.Described LTE/HRPD baseband-converted module is carried out the physical layer Base-Band Processing to the LTE signal stream of input, carry out the treatment steps such as digital demodulation, deinterleaving, descrambling, and the bit stream information of processing carried out again HRPD signal stream modulate, interweaved, scrambling is processed, be output as the HRPD wireless network data and flow.Then, described HRPD protocol configuration stack carries out protocol code with the data flow of described LTE/HRPD baseband-converted module output according to the HRPD agreement, and carry out data compression and packet encapsulation by described data encapsulation unit, then send described digital tuner to.Described digital tuner is processed the frequency conversion of packet settling signal, filtering and automatic gain control, then by described radio-frequency module signal is launched, and receives its discernible HRPD signal for user terminal.So the HRPD user terminal just can be enjoyed data transport service in LTE wireless network the inside.
Communication between communication equipment all needs to exist the communication of signaling, to be used for showing the residing state of equipment and processing outflow.The utility model device when realizing that LTE and HRPD wireless network mobility are mutual, with user terminal network signal flow process step as follows:
The address administration agreement of session layer sends IDRequest message to this device in step a, the user terminal, asks this device to distribute ID access sign for it.
The R.U.P of articulamentum sends RouteUpdate message to this device in step b, the user terminal, to the present positional information of this device informing user terminal, and provide it to the estimation of wireless link condition on every side, supporting the moving mutual management of mobility between network, and IDRequest message and RouteUpdate message are included in the same access channel MAC layer grouping and transmit.
Access channel MAC agreement in step c, this device in the MAC layer sends the Ack response message to user terminal, confirms to receive the access channel MAC layer grouping that contains IDRequest and RouteUpdate message at the access channel.
The address administration agreement of session layer sends IDAssignment message to AT in steps d, this device, for user terminal distributes ID access sign.
The address administration agreement of session layer sends the IDComplete success message to this device in step e, the user terminal, notifies this device to receive IDAssignment message and sign.
Step f, this device begin to receive the radiofrequency signal of LTE or HRPD wireless network, and carry out sending to user terminal after the respective handling.
After step g, user terminal received signal, beginning communicated with this device.
A kind of for the mutual device of LTE and HRPD wireless network mobility, it is characterized in that: power module adopts the CSD86350Q5D module of TI company, and LTE/HRPD baseband-converted module adopts the SP2700 chip of Infineon Technologies Corp..
The utility model has following apparent high-lighting characteristics and remarkable advantage compared with prior art:
The utility model has connected LTE and two kinds of Radio Network Systems of HRPD, be mainly used in the mobility interactive communication service of two kinds of Radio Network Systems, so that user terminal can be implemented in two kinds of internetwork Seamless Mobiles and high speed data transfer, realized the efficient utilization of two kinds of networks.The utility model is when effectively utilizing existing frequency spectrum resource and improving network equipment utilance, also solved between LTE and HRPD wireless network and can't realize that mobility is mutual, can't satisfy the defective of telex network demand, and have the advantages such as with low cost and low in energy consumption.
Description of drawings
Fig. 1 is system block diagram of the present utility model;
Fig. 2 be the utility model device when realizing the Network Mobility interaction and user terminal network signal flow process figure.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment the utility model is further specified:
Referring to Fig. 1, a kind of for the mutual device of LTE and HRPD wireless network mobility, it comprises radio-frequency module 1, digital tuner 2, decoder 3, LTE protocol analysis unit 4, HRPD protocol analysis unit 5, packet filtering 6, LTE/HRPD baseband-converted module 7, LTE protocol configuration stack 8, HRPD protocol configuration stack 9, data encapsulation unit 10, power module 11.It is characterized in that: described radio-frequency module 1 is connected to the first end of described digital tuner 2, described radio-frequency module 1 be connected digital tuner 2 and be two-way connection, information can be in two intermodule input and output; Second end (output) of described digital tuner 2 is connected to the input of described decoder 3; Described LTE protocol analysis unit 4 and described HRPD protocol analysis unit 5 form a standalone module, and the input of this module is connected to the output of described decoder 3, and the output of this module is connected to the input of described packet filtering 6; The output of described packet filtering 6 connects the input of described LTE/HRPD baseband-converted module 7; Described LTE protocol configuration stack 8 and described HRPD protocol configuration stack 9 form a standalone module, and the input of this module is connected to the output of described LTE/HRPD baseband-converted module 7, and the output of this module is connected to the input of described data encapsulation unit 10; The output of described data encapsulation unit 10 is connected to the 3rd end (input) of described digital tuner 2; Described power module 11 is connected to supply line's plate of whole apparatus system, is whole device power supply.
When the LTE user terminal move to from the place that the LTE wireless network covers the HRPD network coverage local time, it is mutual to finish two kinds of internetwork mobility, so that user terminal can use the service of HRPD network.At this moment, described radio-frequency module 1 receives the wireless signal of HRPD network, just with the radio signal transmission that receives to described digital tuner 2.Described digital tuner 2 is intermediate-freuqncy signal with the radiofrequency signal down-converted just, the operations such as settling signal frequency conversion, filtering and automatic gain control.The signal that 3 pairs of described digital tuners 2 of described decoder transmit carries out information decoding, carry out IP and remove encapsulation, demultiplexing, so that the data message of follow-up compatibility to be provided, and be the HRPD wireless network signal from this network signal of decoded information acquisition, so can start the HRPD protocol analysis unit 5 that is connected to decoder 3 outputs.The information flow of the 5 pairs of inputs in described HRPD protocol analysis unit carries out the agreement cell resolves, the output packet.Described packet filtering 6 is just filtered packet, and correction of data bag mistake reduces packet loss and rascal behavior.The HRPD signal stream of 7 pairs of inputs of described LTE/HRPD baseband-converted module carries out the physical layer Base-Band Processing, carry out the treatment steps such as digital demodulation, deinterleaving, descrambling, and the bit stream information of processing carried out again LTE signal stream modulate, interweaved, scrambling is processed, be output as the LTE wireless network data and flow.Then, described LTE protocol configuration stack 8 carries out protocol code with the data flow of described LTE/HRPD baseband-converted module 7 outputs according to the LTE agreement, and carry out data compression and packet encapsulation by described data encapsulation unit 10, then send described digital tuner 2 to.The frequency conversion of 2 pairs of packet settling signals of described digital tuner, filtering and automatic gain control are processed, and then by described radio-frequency module 1 signal are launched, and receive its discernible LTE signal for user terminal.So the LTE user terminal just can be enjoyed data transport service in HRPD wireless network the inside.
In like manner, the HRPD user terminal also can be enjoyed data transport service in LTE wireless network the inside.When the HRPD user terminal move to from the place that the HRPD wireless network covers the LTE network coverage local time, described radio-frequency module 1 receives the wireless signal of LTE network, just with the radio signal transmission that receives to described digital tuner 2.Described digital tuner 2 is intermediate-freuqncy signal with the radiofrequency signal down-converted just, the operations such as settling signal frequency conversion, filtering and automatic gain control.The signal that 3 pairs of described digital tuners 2 of described decoder transmit carries out information decoding, carry out IP and remove encapsulation, demultiplexing, so that the data message of follow-up compatibility to be provided, and be the LTE wireless network signal from this network signal of decoded information acquisition, so can start the LTE protocol analysis unit 5 that is connected to decoder 3 outputs.The information flow of the 5 pairs of inputs in described LTE protocol analysis unit carries out the agreement cell resolves, the output packet.Described packet filtering 6 is just filtered packet, and correction of data bag mistake reduces packet loss and rascal behavior.The LTE signal stream of 7 pairs of inputs of described LTE/HRPD baseband-converted module carries out the physical layer Base-Band Processing, carry out the treatment steps such as digital demodulation, deinterleaving, descrambling, and the bit stream information of processing carried out again HRPD signal stream modulate, interweaved, scrambling is processed, be output as the HRPD wireless network data and flow.Then, described HRPD protocol configuration stack 8 carries out protocol code with the data flow of described LTE/HRPD baseband-converted module 7 outputs according to the HRPD agreement, and carry out data compression and packet encapsulation by described data encapsulation unit 10, then send described digital tuner 2 to.The frequency conversion of 2 pairs of packet settling signals of described digital tuner, filtering and automatic gain control are processed, and then by described radio-frequency module 1 signal are launched, and receive its discernible HRPD signal for user terminal.So the HRPD user terminal just can be enjoyed data transport service in LTE wireless network the inside.
A kind of for the mutual device of LTE and HRPD wireless network mobility, it is characterized in that: power module 11 adopts the CSD86350Q5D module of TI companies, and LTE/HRPD baseband-converted module 7 adopts the SP2700 chip of Infineon Technologies Corp..
When being illustrated in figure 2 as the utility model device and realizing the Network Mobility interaction and user terminal network signal flow process figure, its step is as follows:
The address administration agreement of session layer sends IDRequest message to this device in step a, the user terminal, asks this device to distribute ID access sign for it.
The R.U.P of articulamentum sends RouteUpdate message to this device in step b, the user terminal, to the present positional information of this device informing user terminal, and provide it to the estimation of wireless link condition on every side, supporting the moving mutual management of mobility between network, and IDRequest message and RouteUpdate message are included in the same access channel MAC layer grouping and transmit.
Access channel MAC agreement in step c, this device in the MAC layer sends the Ack response message to user terminal, confirms to receive the access channel MAC layer grouping that contains IDRequest and RouteUpdate message at the access channel.
The address administration agreement of session layer sends IDAssignment message to AT in steps d, this device, for user terminal distributes ID access sign.
The address administration agreement of session layer sends the IDComplete success message to this device in step e, the user terminal, notifies this device to receive IDAssignment message and sign.
Step f, this device begin to receive the radiofrequency signal of LTE or HRPD wireless network, and carry out sending to user terminal after the respective handling.
After step g, user terminal received signal, beginning communicated with this device.
In sum, the utility model is mutual for the mobility of LTE and HRPD wireless network, so that user terminal can be implemented in two kinds of internetwork Seamless Mobiles and high speed data transfer, realized the efficient utilization of two kinds of networks, and had the advantages such as with low cost and low in energy consumption.
Claims (2)
1. one kind is used for the mutual device of LTE and HRPD wireless network mobility, it comprises radio-frequency module (1), digital tuner (2), decoder (3), LTE protocol analysis unit (4), HRPD protocol analysis unit (5), packet filtering (6), LTE/HRPD baseband-converted module (7), LTE protocol configuration stack (8), HRPD protocol configuration stack (9), data encapsulation unit (10), power module (11), it is characterized in that: described radio-frequency module (1) is connected to the first end of described digital tuner (2), described radio-frequency module (1) be connected digital tuner (2) for two-way connection, information can be in two intermodule input and output; Second end (output) of described digital tuner (2) is connected to the input of described decoder (3); Described LTE protocol analysis unit (4) and described HRPD protocol analysis unit (5) form a standalone module, the input of this module is connected to the output of described decoder (3), and the output of this module is connected to the input of described packet filtering (6); The output of described packet filtering (6) connects the input of described LTE/HRPD baseband-converted module (7); Described LTE protocol configuration stack (8) and described HRPD protocol configuration stack (9) form a standalone module, the input of this module is connected to the output of described LTE/HRPD baseband-converted module (7), and the output of this module is connected to the input of described data encapsulation unit (10); The output of described data encapsulation unit (10) is connected to the 3rd end (input) of described digital tuner (2); Described power module (11) is connected to supply line's plate of whole apparatus system.
2. as claimed in claim 1 a kind of for the mutual device of LTE and HRPD wireless network mobility, it is characterized in that: power module (11) adopts the CSD86350Q5D module of TI company, and LTE/HRPD baseband-converted module (7) adopts the SP2700 chip of Infineon Technologies Corp..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200486139U CN202799170U (en) | 2012-02-15 | 2012-02-15 | Device used for mobile interaction between LTE (long term evolution) and HRPD (high rate packet data) wireless network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200486139U CN202799170U (en) | 2012-02-15 | 2012-02-15 | Device used for mobile interaction between LTE (long term evolution) and HRPD (high rate packet data) wireless network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202799170U true CN202799170U (en) | 2013-03-13 |
Family
ID=47826335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200486139U Expired - Fee Related CN202799170U (en) | 2012-02-15 | 2012-02-15 | Device used for mobile interaction between LTE (long term evolution) and HRPD (high rate packet data) wireless network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202799170U (en) |
-
2012
- 2012-02-15 CN CN2012200486139U patent/CN202799170U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101909038B1 (en) | Method and apparatus for reporting user equipment capability in mobile communication system | |
| CN102647804B (en) | Distributed base station as well as data transmission method and device | |
| WO2020028432A1 (en) | Wireless local area network management | |
| KR102376115B1 (en) | Mehtod and apparatus for reconfiguration according to changing of pdcp version in next communication system | |
| US11284350B2 (en) | Method and device in UE and base station for power saving | |
| US8862170B2 (en) | Cloud communication center system and method for processing data in a cloud communication system | |
| EP1973288A1 (en) | A network interconnection system and method with separated control and bearing | |
| EP1971083A1 (en) | A method and a system for optimizing the radio network layer to implement the network interconnection, and a method for interconnection between the radio network and the wired network | |
| EP3448084B1 (en) | Network apparatus | |
| US10999757B2 (en) | Method and apparatus for reducing processing load between terminal and base station when applying new QoS model in next-generation mobile communication system | |
| CN112425202A (en) | Method and related device for classifying and processing SDAP control PDU in next generation mobile communication system | |
| CN103731884A (en) | BBU, RRU, data transmission method and wireless access system | |
| CN101136811A (en) | OFDM transmission signal processing equipment, method and radio frequency far-end unit | |
| US20110128919A1 (en) | Device and method for selecting transceiver in mobile communication system | |
| WO2012155612A1 (en) | Base band unit, bbu, rru and base station | |
| US20210367899A1 (en) | Method and apparatus for processing data in wireless communication system | |
| EP3855836B1 (en) | Method and apparatus for use in wireless communication node | |
| US20180083793A1 (en) | Multicast packets for a wireless local area network | |
| CN105979545A (en) | LTE-Advanced air interface technology analysis device based on 8 channel carrier wave polymerization | |
| CN101958747A (en) | Mobile communication system and method and wireless communication receiving-transmitting equipment in high-speed moving environment | |
| KR20120115352A (en) | Method, device and system for activating carriers | |
| KR20210020384A (en) | Method and apparatus for transmitting and receiving paging for multi-SIM UE in the next generation wireless communication systems | |
| CN113424588A (en) | Method and apparatus for providing band list in wireless communication system | |
| CN105656524A (en) | Multi-frequency multi-mode ultra-high-speed MIMO wireless communication method and device | |
| CN105959980B (en) | A kind of wireless access system based on C-RAN |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140215 |