CN101395941A - Relay device, broadband wireless content delivery system and method for maintaining and delivering content thereof - Google Patents

Relay device, broadband wireless content delivery system and method for maintaining and delivering content thereof Download PDF

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Publication number
CN101395941A
CN101395941A CNA2006800536510A CN200680053651A CN101395941A CN 101395941 A CN101395941 A CN 101395941A CN A2006800536510 A CNA2006800536510 A CN A2006800536510A CN 200680053651 A CN200680053651 A CN 200680053651A CN 101395941 A CN101395941 A CN 101395941A
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China
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content
preposition
content server
wireless digital
digital repeater
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CN101395941B (en
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刁心玺
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ZTE Corp
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ZTE Corp
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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
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • 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
    • H04W88/14—Backbone network devices

Abstract

The present invention provides a relay device, a broadband wireless content delivery system and a method for maintaining and delivering content. The relay device includes a pre-positive content server; and the system are wireless relay device and pre-positive content server management unit which add pre-positive content server into existing mobile communication system; the method includes: a method for the pre-positive content server uploading and updating the content into the pre-positive content server in the relay node; a method for realizing content download by wireless digital relay device with pre-positive content server; a method for realizing data and stream media broadcast by wireless digital relay device with pre-positive content server. This device, system and method can realize content download and broadcast flexibly and effectively, providing a technical solution with high operable for wireless communication network evolvement to telecommunication, information serve integration network.

Description

Relay device, broadband wireless content delivery system and method for maintaining and delivering content thereof
Relay, broadband wireless content delivery system and its content maintenance and sending method
Technical field
The present invention relates to electronic communication field, the method for more particularly to a kind of relay, broadband wireless content delivery system and its content maintenance with sending.
Background technology
The trend that universal information service is social development is provided, the following demand to wireless communication system will be mainly reflected in the tenability of data service, namely to the tenability of Informatization Service, following wireless network will be a communication/consumption/information synthesis business net.This Wireless ISDN will be applied to：In terms of education, news, amusement, traffic, commercial affairs.
At present following technology is occurred in that in cellular mobile communications networks into Wireless ISDN evolution:
3GPP OGPartnershipProject:3G (Third Generation) Moblie collaboration items tissue）Technical report, numbering is 23.246 (TS 23.246), entitled " multicast service：Architecture and function description (Multimedia Broadcast Multicast Service;Architecture and Functional Description) " the inside, to the broadcast/group broadcast of discussion（MBMS) architecture and function of technology are described.Multimedia broadcast/multicast service MBMS is based on WCDMA (WCDMAs）/ GSM (global system for mobile communications）Net is grouped, by increasing some new functional entitys, such as broadcast multicast service center（BM-SC), to existing packet domain functional entity such as SGSN (service GPRS (GPRSs）Supporting node）, GGSN (Gateway GPRS Support Nodes）, RNC (radio network controllers）With UE (user equipmenies）Deng increase MBMS functions, and define new logic shared channel to realize that interface-free resources are shared. .
Broadcast multicast service center BM-SC is that 3G (Third Generation) Moblie realizes one of multimedia service most according to the network element of feature, when there is content service request, BM-SC from operator net in privately owned content service controller, or obtain on the server of core net the content of user's request and be sent to user by rights.
For the ease of realizing the access to content service controller, number of patent application US20040110484, entitled " relay, content sending control method and content delivery system (Relay apparatus, method of controlling content delivery, and content delivery system) " patent document gives a kind of method that content service controller is preposition.This method is in UTRAN (UMTS terrestrial radio access networks）The inside introduces a local content service controller being connected with base station controller, it is therefore an objective to improve BM-SC speed to other network access contents outside core net or core net when providing content service.
1ST (Information Society Technologies) WINNER (Wireless World Initiative New Radio) project research report " IST-2003-507581 WINNER D3.4, the honeycomb based on relaying for following wireless solution lays the definition and assessment of concept（Defmitkm and assessment of relay based cellular deployment concepts for future radio scenarios considering 1st protocol characteristics) " the various existing layout schemes for strengthening cellular system services ability to existing various wireless digital repeater structures, using wireless digital repeater have carried out comprehensive assessment.
The cell mobile communication systems wireless access network based on fixed wireless digital repeater that IST-2003-507581 WINNER D3.4 are provided（RAN) the basic structure of part.As shown in figure 1, the cell mobile communication systems 501 based on fixed wireless digital repeater includes：Several wireless digital repeaters 101a 101n, access point apparatus is distributed according to certain mode（Cellular basestation）Around 102, mobile terminal 1 03 is with cellular basestation 102 to set up communication link by way of a wireless digital repeater 101f is with double bounce by some or some wireless digital repeaters, in figure.Content service controller 104 is controlled to content transmission between base station and terminal, and it is the entrance of content provider, for authorizing and being initiated in mobile network MBMS bearer services, and plan transmission MBMS contents to schedule.Its function includes：
To third party content provider authentication, authorize and charging；
MBMS transmission relevant parameter is provided, MBMS transmission resource is initiated and terminated in such as QoS (service quality, Quality of Service), multicast and broadcast region；
Received from external data source and transmit MBMS contents, arrange MBMS sessions to transmit and inform user, session is retransmitted etc.；
Service statement, including when media description, conversation description such as multicast service identifier, address, transmission Between etc..
The basic structure for the wireless digital repeater that IST-2003-507581 WINNER D3.4 are provided is as shown in Figure 2, the basic structure of wireless digital repeater include two passages of up-downgoing, each passage the signal received is demodulated, decoded and retransmited before re-modulation, coding.The signal that down going channel is received is from donor antenna 201, by duplexer（Wave filter）202nd, Linear Power Amplifier（LNA) 203, down coversion 204, analog to digital conversion（A/D) 205 these basic links are sent to downlink reception and transmitting baseband processing unit 206, downlink reception and transmitting baseband processing unit 206 are under the control of management control unit 219, docking is collected mail number be demodulated, decode and re-modulate, encode etc. in after, be sent to retransmitting antenna 210 by digital to analog conversion 207, up-conversion 208, power amplifier 209, duplexer 211 and be transmitted into terminal；The signal from mobile terminal that data feedback channel is received is from retransmitting antenna 210, by duplexer（Wave filter）211st, Linear Power Amplifier（LNA) 212, down coversion 213, analog to digital conversion（A/D) 214 these basic links are sent to uplink receiving and transmitting baseband processing unit 215, uplink receiving and transmitting baseband processing unit 215 are under the control of management control unit 219, docking is collected mail number be demodulated, decode and re-modulate, encode etc. in after, donor antenna 201 is sent to by digital to analog conversion 216, up-conversion 217, power amplifier 218, duplexer 202, base station is sent to by donor antenna 201.
It is the basic structure of wireless digital repeater as shown in Fig. 2, IST-2003-507581 WINNER D3.4 give a variety of variants of wireless digital repeater, such as：When needs are a time division duplex（TDD when terminal relay) is on the base station of a FDD, see Fig. 1, the air interface 105 between wireless digital repeater 101f and base station 102 can all be different from the air interface 106 between wireless digital repeater 101f and terminal 103 in working frequency points and coding and modulation system.Duplexer 211 now will be replaced by RF switch.
At present, fixed repeater is introduced in cell mobile communication systems（Repeater）Shortcoming be that, as just communication relay, without reference to by being prestored in front end implementation content come the method for exchanging efficiency of transmission for, therefore providing, content is downloaded, underaction, frequency spectrum service efficiency are relatively low in terms of local data or media broadcast business；
Number of patent application US20040110484, entitled " relay, content send controlling party Method standing grain Jie content delivery systems (Relay apparatus, method of controlling content delivery, and content delivery system) " provide a kind of by the preposition method to RNC (radio network controller; Radio Network Controller) place of content service controller; this method can improve acquisition speeds of the UTRAN to content, but can not save the portfolio eated dishes without rice or wine and frequency spectrum resource.In the case where there is multiple users to apply for identical information service to base station in different time sections, existing server configuration mode will cause identical information data to be repeated several times on the eating dishes without rice or wine of base station to transmit, waste frequency spectrum resource in wireless system.The content of the invention
The invention provides a kind of relay, broadband wireless content delivery system and its content maintenance and sending method, by introducing preposition content server in wireless digital repeater, the following content for needing to broadcast or download is loaded to preposition content server using idle frequency spectrum in idle period, realize move temporal to frequency spectrum resource, reduce between base station and wireless digital repeater the volume of transmitted data on interface in the air, so that valuable spectrum concentration is used for the transmission of real-time and non-predetermined information, develop into communication for wireless communication networks, the integrated services network that content service is integrated provides a kind of flexible, efficient system architecture and realization means, and improve the covering quality and spectrum efficiency of base station broadcast signal.
In order to solve the above technical problems, the invention provides a kind of relay, broadband wireless content delivery system and its content maintenance and sending method, relay, for carrying out signal relay forwarding in a wireless communication system, described device includes：
Wireless digital repeater with management control unit, under the control of the management control unit, being demodulated, decoding to the signal received, and re-modulation before retransmiting, coding, described device further comprises： .
Preposition content server, includes：
Memory, for storage media content-data；And database maintenance unit, for the operational order received according to the wireless digital repeater, under the control of the management control unit, data access is carried out to the memory； Wireless digital repeater described in N2006/000679 according to the operational order received, by the management control unit from the memory content data, and be broadcasted by air interface.
Invention further provides a kind of broadband wireless content delivery system, including:One or more base stations, one or more ends, one or more relays, the base station has content service controller, the relay includes the wireless repeater with management control unit, for carrying out signal relay forwarding between a base station and a terminal, wherein：
The relay, further comprises：
Preposition content server, including-memory, for storage media content-data；And database maintenance unit, for the operational order received according to the wireless digital repeater, under the control of the management control unit, data access is carried out to the memory；
The content service controller, including：
Preposition content server administrative unit, for by sending operational order to the wireless digital repeater, the content to the preposition content server to be managed maintenance；
The wireless digital repeater according to the operational order received, by the management control unit from the memory content data, and be broadcasted by air interface.
The preposition content server administrative unit of the content service controller can be to the management service of the preposition content server, including periodic maintenance and maintenance immediately.
The preposition content server administrative unit of the content service controller, can be loaded onto the preposition content server based on plan by content.
The preposition content server administrative unit of the content service controller, can be loaded onto the preposition content server based on statistics by content.
Using the working frequency points spatially mutually staggered between the multiple wireless digital repeater, respective content can be sent.
The wireless digital repeater can be used by the base station is that content sends reserved frequency spectrum come transmission content.
The wireless digital repeater can use the idle frequency spectrum by the base station come transmission content. The wireless digital repeater can use the frequency spectrum of other cells to carry out transmission content.
A kind of method safeguarded present invention also offers content delivery system to the content being stored in relay comprises the following steps：
(A1) content service controller by the preposition preposition content server of content server administrative unit order report its special time interval in service log, current available storage information；
(A2) information reported according to the preposition content server, content service controller sends service content by preposition content server administrative unit to preposition content server；
(A3) according to the service content of transmission, the content inventory of the preposition content server of its establishment is updated by the preposition content server, and mirror image inventory corresponding with the content of preposition content server is updated by preposition content server administrative unit.
The step（A2) it may further include：The information reported according to the preposition content server, content service controller removes the service content in the preposition content server by preposition content server administrative unit；
The step（A3) it may further include：According to the service content of removing, the content inventory of the preposition content server of its establishment is updated by the preposition content server, and mirror image inventory corresponding with the content of preposition content server is updated by preposition content server administrative unit.
The interior method held is provided the terminal with present invention also offers a kind of content delivery system, is comprised the following steps：
(B1) request of terminal reporting service and positional information, these positional informations include：The signal intensity and repeater identification mark for the wireless digital repeater transmitting that terminal is received；
(B2) positional information that content service controller is reported according to terminal determines available repeater；
(B3) content service controller judges the content for whether having terminal request on preposition content server corresponding with the repeater；
(B4) if having the content of terminal request on the preposition content server, by the download of content service controller guiding terminal.
Methods described may further include： (B5) if not having the content of terminal request on the preposition content server, content service controller sends the content of terminal request by air interface to the corresponding content service controller of the repeater, and guiding terminal is downloaded.
Present invention also offers a kind of method that content delivery system provides collaboration broadcast, comprise the following steps：
(C1) base station issues control signaling, wherein carrying broadcasted content configured information；
(C2) wireless digital repeater is according to the broadcasted content configured information received, it is determined that the content to be sent, and according to the default mode of content service controller, the broadcasted content being stored in preposition content server is read out；
(C3) wireless digital repeater determines to be used modulation system, coded system, tranmitting frequency, symbol level synchronization point, and transmission power；
(C4) content of the reading is broadcasted by wireless digital repeater by air interface.The step（C3 in), the configured transmission configured information carried in the control signaling that wireless digital repeater can be sent according to base station determines the modulation system and coded system to be used.
The step（C3 in), the modulation system and coded system information that wireless digital repeater can in itself be carried according to the content in preposition content server determine the modulation system and coded system to be used.
The step（C3 in), wireless digital repeater can be by the way that tranmitting frequency be locked on the signal that base station is sent, to determine tranmitting frequency.
The step（C3 in), wireless digital repeater can be by the way that tranmitting frequency be locked on the signal of global positioning system, to determine tranmitting frequency.
The present invention loads the following content for needing to broadcast or download to preposition content server in section using idle frequency spectrum at one's leisure by introducing preposition content server in wireless digital repeater, realizes move temporal to frequency spectrum resource.Use apparatus of the present invention, system and method, broadcasted content can locally obtained, improve the covering quality and spectrum efficiency of base station broadcast signal, reduce between base station and wireless digital repeater the volume of transmitted data on interface in the air, so that valuable spectrum concentration is used for the transmission of real-time and non-predetermined information, it is that wireless communication networks develop into communication, content service The integrated services network being integrated provides a kind of flexible, efficient system architecture and realization means.Summary of drawings
Fig. 1 is the structure chart of existing fixed wireless digital relay system；
Fig. 2 is the basic block diagram of existing fixed wireless digital repeater；
Fig. 3 is the structure chart of the relay according to the embodiment of the present invention；
Fig. 4 is the structure chart of the content delivery system based on relay according to the embodiment of the present invention.The preferred forms of the present invention
As shown in figure 3, being the structure chart of the relay according to the embodiment of the present invention, relay of the present invention is made up of two parts：Wireless digital repeater and preposition content server 301.
The basic structure of wireless digital repeater include two passages of up-downgoing, each passage the signal received is demodulated, decoded and retransmited before re-modulation, coding.The row of channels up and down of wireless digital repeater can be TDD (time division duplexs, Time Division Duplex) form, can also be FDD (FDDs, Frequency Division Duplex) form, different duplex forms either are respectively adopted from retransmitting end at alms giver end, FDD form is such as used at alms giver end, form of the end using TDD duplexs is being retransmitted.
Preposition content server 301 is made up of high-capacity and high-speed memory, database maintenance unit.High-capacity and high-speed memory is used for storage media content-data, and high-capacity and high-speed memory is made up of solid-state memory or hard disk；The operational order that database maintenance unit is received according to donor antenna, data writing, reading, deletion and content catalog are implemented to high-capacity and high-speed memory.
Frequency that wireless digital repeater with preposition content server is sent according to base station, minislot parameter pilot signal transmitted, relayer tokens（ID) signal, the synchronization that pilot signal is used between terminal and repeater.End repeater is sent after synchronously setting up relayer tokens signal and other signals, such as content service information（Including current broadcasted content, downloadable content etc.）.
The relayer tokens signal that wireless digital repeater with preposition content server is sent can be with It is the specific coding signal carried by pilot tone or the encoded signal sent with other information.Wireless digital repeater with preposition content server is in preposition content server administrative unit
402 times set in advance, content, mode, broadcast message is sent from preposition content server content data, and by air interface to the region that repeater is covered；This broadcast message, can be with identical independently of the broadcasted content of other repeaters, can also be different.
As shown in figure 4, for the structure chart of the content delivery system based on relay according to the embodiment of the present invention, figure includes：Several include the wireless digital repeater 101'a 101' of preposition content server 401nThe access point 102 of several cellular mobile communication base stations or other wireless access systems, several carry the terminal 103' of double synchronous control unit 403, and several carry the content service controller 104' of preposition content server administrative unit 402.
Around cellular basestation 102, wireless digital repeater 101'a ~ 101'n of preposition content server 401 is included according to arranged evenly several of certain mode, the mode that mobile terminal 1 03' sets up communication link with cellular basestation 102 there are three kinds：1) by some wireless digital repeater, such as by a wireless digital repeater 101'f, communication link is set up with cellular basestation 102 in the way of double bounce；2) directly communication link is set up with cellular basestation 102 in the way of single-hop；3) while directly communication link is set up with cellular basestation 102 in the way of single-hop, also by way of some wireless digital repeater is with double bounce communication link is set up with cellular basestation 102, in this manner, the double synchronous control unit 403 in terminal 103' realizes locking simultaneously to base station synchronization signal and repeater synchronization signal.Content service controller 104' with preposition content server administrative unit 402 is by air interface, and the content to preposition content server 401 is safeguarded.
Content service controller 104' is integrated provides content service using other servers in preposition content server administrative unit 402 and UTRAN, core net, and the content service controller of outer net for terminal 103'.
Preposition content server administrative unit 402 carries out maintenance to the content of preposition content server 401 and is divided into periodic maintenance and immediately maintenance, e.g., uploads new content to preposition content server 401, clears up the consistency check of out-of-date content, content.Preposition content server administrative unit 402 for the content of each preposition content server sets up content mirrors in UTRAN, or in core net The union of each preposition content server content is stored inside inventory and content mirrors database, content mirrors database.
Preposition content server administrative unit 402 takes various ways to load preposition content server：1) the content loading based on plan；2) loading based on statistics, i.e., according to the historical statistics result of the content service class of preposition content server position, loading, the content class of reservation demand amount；3) loading immediately, when true preposition content server does not have the content that prestored user is asked, repeater is stored in these contents in preposition content server while the content sent to user's repeating base station.
Preposition content server administrative unit 402 can be loaded in special time to preposition content server, during such as communicating the free time, when a kind of situation is that night communication traffic is idle；Can also real-time loading, such as live loading with breaking news data；
Wireless digital repeater 101'a 101'n have two kinds of mode of operations：Content sending mode in communication relay pattern and regional area.
When working in the content sending mode in regional area, wireless digital repeater 101'aContent service is provided in the cell that ~ 101'n is concurrently covered to it, these content services include：Content is downloaded, broadcast.Different wireless digital repeaters needs the content provided to its cell, particularly downloading service, it is usually different, therefore, when wireless digital repeater 101'a ~ 101'ii works in the content sending mode in regional area, in order to avoid interference, using being spatially offset from each other working frequency points.
When working in the content sending mode in regional area, wireless digital repeater 101'a ~ 101'n frequency spectrum resource distribution and dynamic adjusting method：1) it is the reserved frequency spectrum of download, broadcast, multicast service, such as time slot to use base station；2) using the idle frequency spectrum of base station；3) using the frequency spectrum of other cells, it is necessary to which radio environment measurements data coordinate.
When working in the content sending mode in regional area, base station（Or access point）102 to its cover regional broadcast for terminal access wireless digital repeater access guidance information, access guidance information include repeater use frequency, time slot, the time relationship relative to base station synchronization signal.
When working in the content sending mode in regional area.Base station（Or access point）102 to its The repeater access guidance information broadcasted in overlay area can include multiple frequencies, time slot.Terminal is according to base station（Or access point）The frequency that issues, time slot, the time relationship relative to base station synchronization signal, realize and to be quickly accessed with repeater.
In the specific embodiment of the invention, access point 102 is the base station of IEEE 802.16e systems, wireless digital repeater 101'a ~ 10rn is laid in IEEE 802.16e base stations institute overlay area, wireless digital repeater 101'a 101'n carry preposition content server 401.Terminal 103' is portable computer.In order to support content service, IEEE 802.16e base stations are connected to the content service controller 104' with preposition content server administrative unit 402 by SGSN and GGSN.
In order to avoid disturbing and saving cost, wireless digital repeater 10ra101'n is only laid in hot zones, such as station, crossing, subway in isolation.Broadcast, communication, downloading service are provided in order to integrate, usable spectrum resource is divided into three parts from the time:Base station broadcast frequency spectrum eight, tracking exchage frequency spectrum B, wireless digital repeater with frequency spectrum (.Can dynamically it be adjusted according to the change of portfolio between this three partial frequency spectrums resource.
When being broadcasted in base station with its broadcast with frequency spectrum A（One timeslice A of correspondence), wireless digital repeater also cooperates with broadcast with base station using base station broadcast with frequency spectrum A；
When being communicated in base station with its communication with frequency spectrum B（One timeslice B of correspondence), if the terminal communicated is in some wireless digital repeater overlay area, wireless digital repeater is also relayed using base station communication with frequency spectrum B to the signal of communication of base station；
When wireless digital repeater is used for content broadcast or the downloading mode of regional area, using wireless digital repeater with frequency spectrum C (correspondence one timeslice C), now, corresponding to timeslice C, base station not transmission signal, each wireless digital repeater realizes multiplexing spatially in timeslice C to same section of frequency spectrum, improves the service efficiency of frequency spectrum.Such as, some covering commercial street of the wireless digital repeater lOl'a lOl'n that access point 102 is covered, some covering school, some covering bus stop, in timeslice C, the download service of the broadcast service and merchandise news of the wireless digital repeater offer commercial advertisement of commercial street is provided, at the same time, in timeslice C, the wireless digital repeater for covering school provides multimedia teaching broadcast and multimedia download services, the wireless digital repeater for covering bus stop provides traffic route download service and bus arrival time Broadcast porenotice service（Now, the bus arrival time advance notice that the wireless digital repeater of different bus stations is sent is different）.
Another embodiment of the present invention is the content maintenance method of the content service controller of relay, wherein, preposition content server administrative unit 402 carries out upload content, content removing, content inventory renewal to preposition content server 301.Comprise the following steps that：
Step 1:Preposition content server administrative unit 402 obtains the related data of preposition content server 301.
Preposition content server administrative unit 402 is uploaded to optimize to the preposition content of content server 301, and preposition content server administrative unit 402 requires that preposition content server 301 reports the service log in its special time interval, current available storage information；
Step 2:Preposition content server administrative unit 402 is to the preposition transmission content of content server 301；
A kind of sending method is advance transmission, according to the content requirements to the preposition coverage of content server 301, in advance to the preposition transmission content of content server 301.
The content requirements of content service controller coverage can be predetermined broadcast message（Such as advertisement, Streaming Media）, can download the frequently content of multimedia such as audio frequency and video；
A kind of method is the content of the preposition content server 301. of immediate updating, when preposition content server administrative unit 402 confirms the content that the currently available the inside of preposition content server 301 of service request terminal is asked without terminal, the preposition content server 301 into relay is sent immediately（Upload）Content, while sending its content asked to terminal by repeater.
Step 3:Content inventory synchronized update
After the preposition loading of content server 301 is completed once, preposition content server administrative unit 402 updates the mirror image inventory corresponding with the content of preposition content server 301 that it is created, preposition content server 301 updates the content inventory that it is created, and preposition content server administrative unit 402 keeps the two list synchronizations to update, content equity.
After the preposition content of content server 301 removing is completed once, preposition content server administrative unit 402 and preposition content server 301 also carry out same content inventory synchronized update. N2006/000679 one more embodiment of the present invention is the content download method based on relay, and it is comprised the concrete steps that：
Step 1:The signal intensity and repeater identification mark for the wireless digital repeater transmitting that the service request and terminal that terminal is reported are received（These information that network is reported using terminal obtain the positional information of wireless digital repeater）；
Step 2:The service request that content service controller 104' receiving terminals are reported；
Step 3:Content service controller 104' determines whether available repeater according to the positional information of terminal
Step 4:Content service controller 104' judges the content for whether having terminal request on preposition content server 401；
Step 5:If preposition content server 401 has the content of terminal request, the download of content service controller 104' guiding terminals；
Step 6:If preposition content of the content server 401 without terminal request, content service controller 104' sends the content of terminal request by air interface to the content service controller of repeater, and guiding terminal is downloaded；
Another embodiment of the present invention is the collaboration broadcasting method based on relay, in the predetermined content of the regional broadcast that cellular basestation 102 is covered to it, wireless digital repeater 101'a ~ 101'n is according to content service controller 104' times set in advance, content, mode, pass through air interface, be pre-stored in it is in preposition content server 401, read out with the identical content of content that the cellular basestation 102 on its upper strata is broadcasted, these broadcasted contents are sent as follows：
The first step, wireless digital repeater 10ra ~ 101'n determines the content to be sent, and specific method is the content indication information carried in the control signaling issued according to base station 102；
Second step, wireless digital repeater 101'a ~ 101'n determines modulation system, the coded system to be used, and can be realized by two ways：1) the configured transmission configured information carried in the control signaling issued according to base station 102；2) modulation system, the coded system information carried in itself according to the content in preposition content server 401；
3rd step, wireless digital repeater 10ra ~ 10rn realizes the frequency and honeycomb base of transmission content Stand 102 frequency stringent synchronization, it is a kind of realize that frequency is synchronous method be wireless digital repeater lOl'a-lOl'n Frequency Locking on the signal that cellular basestation 102 is sent, it is a kind of realize Frequency Synchronization method be wireless digital repeater 101'a ~ 101'n Frequency Locking on the signal of global positioning system；
4th step, wireless digital repeater 101'a ~ 101'n determines the symbol level synchronization point of transmission content, it is a kind of determine synchronization point method be wireless digital repeater 101'a ~ 101'n time lock on the signal that cellular basestation 102 is sent, it is a kind of determine synchronization point method be wireless digital repeater 10ra ~ 101'n time lock on the signal of global positioning system；
5th step, wireless digital repeater 10ra ~ 101'n determines the transmission power of transmission content, and a kind of method is that, according to predetermined power emission, a kind of is that the power control signal sent according to cellular basestation 102 is sent.
6th step, wireless digital repeater 101'a 101'n cooperate with transmission broadcast singal with base station 102.Industrial applicibility Informatization Service compares with communication service, and its feature is：1) otherness over a geographical, the crowd of different geographic regions is concerned about different types of information；2) send it is temporal can be planned, the granting of some category informations, such as audio, video broadcast service are carried out according to advance arrangement of time；3) in the special time period present on content class in statistical regularity, specific region, download the high content class of frequency to the demand of various information with statistical law, in statistics and be used as the content class preferentially loaded.
The present invention provides a kind of method for exchanging frequency spectrum service efficiency for amount of storage, by introducing preposition content server in wireless digital repeater and at one's leisure in section（Such as the late into the night）The following content for needing to broadcast or download is loaded to preposition content server using idle frequency spectrum, move temporal to frequency spectrum resource is realized.Further, since broadcasted content can locally obtained, wireless digital repeater, with these contents of base station coordinated emission, can improve the covering quality and spectrum efficiency of base station broadcast signal in these contents of base station broadcast.
It is local by the way that content is cached in advance in the wireless system of wireless digital repeater is introduced (wireless digital repeater position）Reduce between base station and wireless digital repeater the volume of transmitted data on interface in the air, so that valuable spectrum concentration is used for the transmission of real-time and non-predetermined information, a kind of flexible, efficient system architecture and realization means are provided for the integrated services network that wireless communication networks develop into communication, content service is integrated.

Claims (29)

  1. Claims
    1st, a kind of relay, for carrying out signal relay forwarding in a wireless communication system, described device includes：
    Wireless digital repeater with management control unit, under the control of the management control unit, being demodulated, decoding to the signal received, and re-modulation before retransmiting, coding, it is characterised in that
    Described device, further comprises-preposition content server, including：
    Memory, for storage media content-data；And
    Database maintenance unit, for the operational order received according to the wireless digital repeater, under the control of the management control unit, data access is carried out to the memory；The wireless digital repeater according to the operational order received, by the management control unit from the memory content data, and be broadcasted by air interface.
    2nd, device according to claim 1, it is characterised in that the memory is made up of solid-state memory or hard disk.
    3rd, device according to claim 1, it is characterised in that the data access that the database maintenance unit is carried out to the memory, including data writing, reading, deletion or content catalog.
    4th, a kind of broadband wireless content delivery system, including：One or more base stations, one or more terminals, one or more relays, the base station has content service controller, the relay includes the wireless repeater with management control unit, for carrying out signal relay forwarding between a base station and a terminal, it is characterised in that：
    The relay, further comprises：
    Preposition content server, including-memory, for storage media content-data；And
    Database maintenance unit, for the behaviour received according to the wireless digital repeater Order, under the control of the management control unit, data access is carried out to the memory；The content service controller, including：
    Preposition content server administrative unit, for by sending operational order to the wireless digital repeater, the content to the preposition content server to be managed maintenance；
    The wireless digital repeater according to the operational order received, by the management control unit from the memory content data, and be broadcasted by air interface.
    5th, system according to claim 4, it is characterised in that the memory is made up of solid-state memory or hard disk.
    6th, system according to claim 4, it is characterised in that the data access that the database maintenance unit is carried out to the memory, including data writing, reading, deletion or content catalog.
    7th, system according to claim 4, it is characterised in that the preposition content server administrative unit of the content service controller is to the management service of the preposition content server, including periodic maintenance and maintenance immediately.
    8th, system according to claim 4, it is characterised in that the preposition content server administrative unit of the content service controller, the preposition content server is loaded onto based on plan by content.
    9th, system according to claim 4, it is characterised in that the preposition content server administrative unit of the content service controller, the preposition content server is loaded onto based on statistics by content.
    10th, system according to claim 4, it is characterized in that, the preposition content server administrative unit of the content service controller, when there is no the content of prestored user request in the preposition content server, by wireless digital repeater while the content sent to user's repeating base station, the content is loaded onto the preposition content server.
    11st, the system according to claim 8,9 or 10, it is characterised in that the preposition content server administrative unit of the content service controller, during system communication is idle, the preposition content server is loaded onto by content.
    12nd, the system according to claim 8,9 or 10, it is characterised in that the preposition content server administrative unit of the content service controller, is loaded onto the preposition content server by content in real time. 13rd, system according to claim 4, it is characterised in that using the working frequency points spatially mutually staggered between the multiple wireless digital repeater, respective content is sent.
    14th, system according to claim 4, it is characterised in that the wireless digital repeater is that content sends reserved frequency spectrum come transmission content using by the base station.
    15th, system according to claim 4, it is characterised in that the wireless digital repeater is using the idle frequency spectrum by the base station come transmission content.
    16th, system according to claim 4, it is characterised in that the wireless digital repeater carrys out transmission content using the frequency spectrum of other cells.17th, a kind of method safeguarded using content delivery system as claimed in claim 4 to the content being stored in relay, it is characterised in that comprise the following steps-
    (A1) content service controller by the preposition preposition content server of content server administrative unit order report its special time interval in service log, current available storage information；(A2) information reported according to the preposition content server, content service controller sends service content by preposition content server administrative unit to preposition content server；
    (A3) according to the service content of transmission, the content inventory of the preposition content server of its establishment is updated by the preposition content server, and mirror image inventory corresponding with the content of preposition content server is updated by preposition content server administrative unit.
    18th, method as claimed in claim 17, it is characterised in that：
    The step（A2) further comprise：The information reported according to the preposition content server, content service controller removes the service content in the preposition content server by preposition content server administrative unit；
    The step（A3) further comprise：According to the service content of removing, the content inventory of the preposition content server of its establishment is updated by the preposition content server, and mirror image inventory corresponding with the content of preposition content server is updated by preposition content server administrative unit.
    19th, method as claimed in claim 17, it is characterised in that the step（A2) include：Content service controller is by preposition content server administrative unit, in advance to preposition content service Device sends service content.
    20th, method as claimed in claim 17, it is characterised in that the step（A2) include:When preposition content server administrative unit confirms the service content that the currently available preposition content server the inside of service request terminal is asked without terminal, immediately service content is sent to preposition content server, while sending its content asked to terminal by repeater.
    21st, a kind of method that content download is provided the terminal with using content delivery system as claimed in claim 4, it is characterised in that comprise the following steps：
    (B1) request of terminal reporting service and positional information；
    (B2) positional information that content service controller is reported according to terminal determines available repeater 5
    (B3) content service controller judges the content for whether having terminal request on preposition content server corresponding with the repeater；
    (B4) if having the content of terminal request on the preposition content server, by the download of content service controller guiding terminal.
    22nd, according to claim 20 methods described, it is characterised in that methods described further comprises:(B5) if not having the content of terminal request on the preposition content server, content service controller sends the content of terminal request by air interface to the corresponding content service controller of the repeater, and guiding terminal is downloaded.
    23rd, a kind of method that collaboration broadcast is provided using content delivery system as claimed in claim 4, it is characterised in that comprise the following steps：
    (C1) base station issues control signaling, wherein carrying broadcasted content configured information；
    (C2) wireless digital repeater is according to the broadcasted content configured information received, it is determined that the content to be sent, and according to the default mode of content service controller, the broadcasted content being stored in preposition content server is read out；
    (C3) wireless digital repeater determine to be used modulation system, coded system, tranmitting frequency, Symbol level synchronization point, and transmission power；
    (C4) content of the reading is broadcasted by wireless digital repeater by air interface.
    24th, method according to claim 22, it is characterised in that：
    The step（C1 in), configured transmission configured information 5 is further carried in the control signaling that base station is issued
    The step（C3 in), the configured transmission configured information carried in the control signaling that wireless digital repeater is sent according to base station determines the modulation system and coded system to be used.
    25th, method according to claim 22, it is characterised in that the step（C3 in), the modulation system and coded system information that wireless digital repeater is carried in itself according to the content in preposition content server determine the modulation system and coded system to be used.
    26th, method according to claim 22, it is characterised in that the step（C3 in), wireless digital repeater is by the way that tranmitting frequency is locked on the signal that base station is sent, to determine tranmitting frequency.
    27th, method according to claim 22, it is characterised in that the step（C3 in), wireless digital repeater is by the way that tranmitting frequency is locked on the signal of global positioning system, to determine tranmitting frequency.
    28th, method according to claim 22, it is characterised in that the step（C3 in), wireless digital repeater by by time lock on the signal that base station is sent, to determine the symbol level synchronization point of transmission content. '
    29th, method according to claim 22, it is characterised in that the step（C3 in), wireless digital repeater by by time lock on the signal of global positioning system, to determine the symbol level synchronization point of transmission content.
    30th, method according to claim 22, it is characterised in that the step（C3 in), wireless digital repeater determines the transmission power of transmission content according to predetermined power.
    31st, method according to claim 22, it is characterised in that the step（C3 in), the power control signal that wireless digital repeater is sent according to base station determines the transmission power of transmission content.
CN2006800536510A 2006-04-14 2006-04-14 Relay device, broadband wireless content delivery system and method for maintaining and delivering content thereof Active CN101395941B (en)

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GB2493918B (en) * 2011-08-19 2016-08-31 Sca Ipla Holdings Inc Telecommunications apparatus and methods
US10764172B1 (en) 2018-12-31 2020-09-01 Sprint Communications Company L.P. Wireless communication network with wireless relays that serve data content to wireless user devices
US11546828B2 (en) * 2019-08-01 2023-01-03 Qualcomm Incorporated Smart directional repeaters with buffering capability

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JP4133274B2 (en) * 2002-12-04 2008-08-13 株式会社エヌ・ティ・ティ・ドコモ Content distribution system, relay device, and content distribution control method
GB2407456B (en) * 2003-10-24 2005-11-09 Motorola Inc A method for supplying content to a user device in a communication system and apparatus therefor
JP4354296B2 (en) * 2004-02-25 2009-10-28 株式会社エヌ・ティ・ティ・ドコモ Information distribution system, radio base station, and information distribution method

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CN105323320B (en) * 2015-11-11 2018-09-25 中国联合网络通信集团有限公司 A kind of method and device of content distribution

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