CN103596183A - Method and system for carrying out rapid communication by utilizing public frequency band - Google Patents
Method and system for carrying out rapid communication by utilizing public frequency band Download PDFInfo
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- CN103596183A CN103596183A CN201210287157.8A CN201210287157A CN103596183A CN 103596183 A CN103596183 A CN 103596183A CN 201210287157 A CN201210287157 A CN 201210287157A CN 103596183 A CN103596183 A CN 103596183A
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Abstract
The invention provides a method and system for carrying out rapid communication by utilizing public frequency band. The method is characterized by the following steps: firstly, detecting a synchronization signal obtained by a mobile device and extracting first identification information of a base station corresponding to the synchronization signal in the synchronization signal; accessing the mobile device to a mobile network covered by the base station based on the first identification information so as to enable the mobile device to obtain corresponding second identification information;when the base station monitors that the public frequency band is idle, distributing first parameter information reflecting that the base station can communicate with the mobile device to an idle position of an RTS protocol and sending the RTS protocol; and next, based on the RTS protocol obtained by the mobile device, distributing second parameter information reflecting the current status of the mobile device to an idle position of a CTS protocol and sending the CTS protocol, so that the base station and the mobile device can be communicated rapidly.
Description
Technical field
The present invention relates to a kind of method of using public frequency range to communicate, particularly relate to a kind of method and system that uses public frequency range to carry out high-speed traffic.
Background technology
Along with wireless data service rapidly increases, in the nervous all the more situation of bandwidth availability ratio, utilizing existing frequency spectrum resource to increase bandwidth availability ratio is extremely urgent already.Particularly public frequency range, as ISM band, can be used for considering the more use of sharing.The communication technology based on LTE standard that can be operated in shared band is more and more attractive, promotes the new benefits such as application because can bring such as capacity.
Yet current public frequency range is shared by multiple network, as wireless broadband network, blueteeth network etc.The time that equipment in each network successfully takies described public frequency range is random, generally all very short, in ETSI EN 300328V1.8.1.0.0.27 specified in more detail two kinds of mechanism: based on Non-LBT(Non Listen before talk, before sending, do not monitor) detection and avoidance mechanism and based on LBT(Listen before talk, before sending, monitor) detection and avoidance mechanism.In based on Non-LBT method, Channel holding time should be less than 40ms.Meanwhile, in LBT, for the equipment of two types (equipment based on frame and the equipment based on load), the maximum of Channel holding time is respectively also 10ms and 13ms.Therefore, take each time time of ISM band all very short.
Traditional LTE agreement is all Transmission Design continuously, and mobile device must first detect the mobile network that ability access base station covers after master sync signal (PSS) and auxiliary synchronous signals (SSS).Then, all concrete system information and cell informations that are carried on synchronizing signal and Physical Broadcast Channel (PBCH) the inside need to be decoded before setting up wireless connections.In present LTE agreement the inside, base station is at the up or D2D resource authorization of the upper transmission of Physical Downlink Control Channel (PDCCH), and under Frequency Division Duplexing (FDD) (FDD) pattern, mobile device only could transmit data after 3ms dispatching at least.Under time division duplex (TDD) pattern, base station is larger to the dispatch delay meeting of mobile device transmission.The delay of LTE transmission should think better of, and especially ISM band holding time is very short, therefore, when LTE system is used ISM band, how effectively to support LTE to take short time ISM band and becomes very important problem.
As can be seen here, if according to current LTE agreement, even if base station has taken public frequency range, be also difficult to carry out active data with mobile device and communicate by letter.Yet current WLAN, when utilizing public frequency range, because the time that the handshake communication of radio reception device and subscriber equipment spends is short, causes WLAN can utilize public frequency range to carry out data communication effectively.
Therefore need to improve the interactive mode of the parameter information of existing mobile device and base station, communicate to can make full use of public frequency range.
Summary of the invention
The shortcoming of prior art, the object of the present invention is to provide a kind of method and system that uses public frequency range to carry out high-speed traffic in view of the above, so that mobile device and base station can utilize public frequency range to communicate.
For achieving the above object and other relevant objects, the invention provides a kind of method of using public frequency range to carry out high-speed traffic, it comprises: 1) mobile device detects the synchronizing signal of obtaining, and from described synchronizing signal, extracts the first identification information of its corresponding base station; Based on described the first identification information, described mobile device is accessed to the mobile network that described base station covers, so that described base station is described mobile device, distribute the second identification information, and described the second identification information is offered to described mobile device;
Described method also comprises: A) in described base station, listen to public frequency range during the free time, the described base station of reflection can be assigned in the spare bits of RTS agreement with the first parameter information of described mobile device communication, and by described base station, described RTS agreement be sent to described mobile device; B) the described RTS agreement of obtaining based on described mobile device, second parameter information of the described mobile device the present situation of reflection is assigned in the spare bits of CTS agreement, and based on described the first identification information, described CTS agreement is sent to described base station by described mobile device, so that described base station communicates with described mobile device taking in the time of described public frequency range.
Preferably, the spare bits in described RTS agreement at least comprises: in RTS agreement, in frame control field, in idle bit, RTS agreement, in destination address field, in the remaining bits position except described the second identification information, RTS agreement, send a kind of in address field.
Preferably, the spare bits in described CTS agreement at least comprises: in CTS agreement, in frame control field, described in idle bit, CTS agreement, send a kind of in the corresponding bit in address.
Preferably, described the first parameter information at least comprises: the configuration of the through-put power of downstream channel bandwidth, reference signal, physical layer hybrid automatic repeat request indication channel, help when synchronous to play the part of the System Frame Number of timing reference, the configuration of described base station transmit antennas and pre-scheduling of resource.
Preferably, described the first identification information is the sector identifier that described base station sets in advance.
Preferably, described the second identification information is Cell Radio Network Temporary Identifier/Identity, Cell-RNTI information.
Based on above-mentioned purpose, the present invention also provides a kind of system of using public frequency range to carry out high-speed traffic, it comprises: detection module, and the synchronizing signal of obtaining for detection of mobile device, and from described synchronizing signal, extract the first identification information of the corresponding base station of described synchronizing signal; Synchronization module, for described mobile device being accessed to the mobile network that described base station covers based on described the first identification information, distributes the second identification information so that described base station is described mobile device, and described the second identification information is offered to described mobile device; Request module, for listening to public frequency range in described base station during the free time, the described base station of reflection can be assigned in the spare bits of RTS agreement with the first parameter information of described mobile device communication, and by described base station, described RTS agreement be sent to described mobile device; Respond module, for the described RTS agreement of obtaining based on described mobile device, second parameter information of the described mobile device the present situation of reflection is assigned in the spare bits of CTS agreement, and based on described the first identification information, described CTS agreement is sent to described base station by described mobile device, so that described base station communicates with described mobile device taking in the time of described public frequency range.
Preferably, the spare bits in described RTS agreement at least comprises: in RTS agreement, in frame control field, in idle bit, RTS agreement, in destination address field, in the remaining bits position except described the second identification information, RTS agreement, send a kind of in address field.
Preferably, the spare bits in described CTS agreement at least comprises: a kind of in idle bit, the transmission address field in CTS agreement in frame control field in CTS agreement.
Preferably, described the first parameter information at least comprises: the configuration of the through-put power of downstream channel bandwidth, reference signal, physical layer hybrid automatic repeat request indication channel, help when synchronous to play the part of the System Frame Number of timing reference, the configuration of described base station transmit antennas and pre-scheduling of resource.
Preferably, described the first identification information is the sector identifier of the respective sectors that covers in described base station of described mobile device.
Preferably, described the second identification information is Cell Radio Network Temporary Identifier/Identity, Cell-RNTI information.
As mentioned above, a kind of method and system that uses public frequency range to carry out high-speed traffic of the present invention, there is following beneficial effect: by utilizing WLAN at the Handshake Protocol of public frequency range, improve before mobile device and base station take public frequency range and communicate, set up the problem of the overlong time of communication, particularly, feature for mobile network, redistribute in RTS/CTS agreement and be only applicable to the bit in WLAN, effectively reduced mobile device and base station and communicated by letter front transfer time of parameter information each other; Simultaneously, consider mobile network's feature, the mobile network who first mobile device access base station is covered, make mobile device and base station before communicating by letter each other no longer " stealth ", so, can from RTS/CTS agreement, compress more spare bits, to distribute the parameter information between described mobile device and base station.
Accompanying drawing explanation
Fig. 1 is shown as a kind of flow chart that uses public frequency range to carry out the method for high-speed traffic of the present invention.
Fig. 2 is shown as a kind of structural representation that uses public frequency range to carry out the system of high-speed traffic of the present invention.
Element numbers explanation
1 high-speed communication system
11 detection modules
12 synchronization modules
13 request module
14 respond module
2 mobile devices
3 base stations
S1 ~ S4 step
Embodiment
Below, by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this specification.The present invention can also be implemented or be applied by other different embodiment, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present invention.
Fig. 1 is shown as the flow chart that the public frequency range of use of the present invention is carried out the method for high-speed traffic.The method that the public frequency range of described use is carried out high-speed traffic is applied to the scene that base station is obtained while taking public frequency range fast and the mobile device of its access communicates, described method is mainly carried out by high-speed communication system, wherein, described high-speed communication system comprises the application module being arranged in described mobile device and is arranged on the application module in described base station.This mobile device includes but not limited to GSM mobile handset, 3G mobile etc.Described base station includes but not limited to: GSM base station, NodeB etc.
In step S1, described high-speed communication system detects the synchronizing signal that mobile device obtains, and from described synchronizing signal, extracts the first identification information of the corresponding base station of described synchronizing signal.Wherein, described the first identification information comprises any information that can identify described base station, it includes but not limited to: the address information of described base station, described mobile device are at the cell information of described base station institute Serving cell, preferably, described the first identification information is the sector identifier of the respective sectors that covers in described base station of described mobile device.
Particularly, the frequency range of described mobile device based on default obtained the synchronizing signal from base station, the protocol rule of the synchronizing signal of described high-speed communication system based on default detects synchronizing signal described in this frequency range, and from described synchronizing signal, extracts the first identification information of described base station.
For example, each 5ms of described base station sends a synchronizing signal, when described mobile device obtains based on competition mechanism the resource that takies public frequency range, described mobile device starts to obtain described synchronizing signal in default frequency range, then, by described high-speed communication system, detected the synchronizing signal of obtaining, to obtain sending the first identification information of the base station of described synchronizing signal, and preserved.
In step S2, described high-speed communication system accesses by described mobile device the mobile network that described base station covers based on described the first identification information, so that described base station is described mobile device, distribute the second identification information, and described the second identification information is offered to described mobile device.Wherein, described the second identification information comprises that any described base station is the identification information that can distinguish each mobile device in described mobile network that described mobile device distributes, it includes but not limited to: IP address, preferably, described the second identification information is Cell Radio Network Temporary Identifier/Identity, Cell-RNTI information.
It should be noted that, it should be appreciated by those skilled in the art that described base station is the mode that described mobile device distributes the second identification information, is not described in detail in this.
For example, first identification information of described high-speed communication system based on detected sends the mobile network's of its covering of access access information to corresponding base station, described base station is the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI that described mobile device distributes 16 bits based on this access information, and described Cell Radio Network Temporary Identifier/Identity, Cell-RNTI is sent to described mobile device, to confirm that described mobile device accesses described mobile network.
Thus, described mobile device and described base station synchronization.
In step S3, in described base station, listen to public frequency range during the free time, described high-speed communication system can be assigned to the described base station of reflection in the spare bits of RTS agreement (sending request agreement) with the first parameter information of described mobile device communication, and by described base station, described RTS agreement is sent to described mobile device.Wherein, the first parameter information when described base station and described mobile device communication comprises any the first parameter information for guaranteeing that described base station and described mobile device communicate of being determined by described base station, it includes but not limited to: downstream channel bandwidth, the through-put power of reference signal, physical layer hybrid automatic repeat request indication channel (PHICH) configuration, help synchronously to play the part of the System Frame Number of timing reference simultaneously, the configuration of described base station transmit antennas, with pre-scheduling of resource, preferably, described the first parameter information also comprises: mobile device/mobile device group sign, resource block assignments, the distribution duration of Resource Block, many aerial informations, modulation intelligence, load, the pre-scheduling of uplink authorization, mobile device transformation parameter etc.
Described RTS agreement is that the request that in WLAN (wireless local area network), two equipment communicate in front Handshake Protocol sends agreement.Spare bits in described RTS agreement refers to the definition of original bit when the mobile network of described RTS protocol application to be unsuitable for those bits of described mobile network communication or the respective field of described RTS agreement remaining bit after described high-speed communication system is redistributed.It includes but not limited to: idle bit etc. in frame control field in RTS agreement.Particularly, described spare bits comprises: 9-12 position and 14-16 position in frame control field in described RTS agreement.For example, in the frame control byte of described RTS agreement the 9th is " going to DS " bit, in mobile network without the control frame that sends or receive " going to DS ", therefore this position is spare bits.More preferably, described high-speed communication system is the receiver address in described RTS agreement using the corresponding Cell Radio Network Temporary Identifier/Identity, Cell-RNTI information of described mobile device that is about to communicate by letter, therefore described high-speed communication system replaces to 16 described Cell Radio Network Temporary Identifier/Identity, Cell-RNTI information and spare bits by 48 destination address fields default in RTS agreement, therefore described spare bits also comprises remaining 32 bits in destination address field.More preferably, described mobile device accesses after the mobile network that described base station covers, realized and the synchronizeing of described base station, described base station and described mobile device are no longer " stealthy equipment " each other, therefore the transmission address in RTS agreement (48 bit) can be omitted, described spare bits also comprises the corresponding bit in described transmission address.
For example, described high-speed communication system is chosen described base station and is used for necessity first parameter information of transmission: the configuration of the through-put power of downstream channel bandwidth, reference signal, physical layer hybrid automatic repeat request indication channel (PHICH), help synchronously to play the part of the System Frame Number of timing reference, the configuration of described base station transmit antennas and pre-scheduling of resource simultaneously, according to default rule, above-mentioned the first parameter information is assigned in the frame control field in RTS agreement in 9-12 position and 14-16 position.Thus, obtain being applicable to described mobile network's RTS agreement, and by described base station, new described RTS agreement is sent to described mobile device.
And for example, the grouping situation of the described mobile device that described high-speed communication system accesses based on described base station and resource block assignments situation, on the basis of choosing necessary the first parameter information, add other the first parameter information, and selected whole the first parameter informations are assigned to 9-12 position in the frame control field in RTS agreement, 14-16 position and send in 48 bits of address field, to generate, be applicable to described mobile network's RTS agreement, and by described base station, new described RTS agreement be sent to described mobile device.
For another example, described high-speed communication system replaces to the destination address field in described RTS agreement (48) the described Cell Radio Network Temporary Identifier/Identity, Cell-RNTI information of only having 16, the first parameter information during again by described base station and described mobile device communication is assigned to 9-12 position in the frame control field in described RTS agreement, 14-16 position, remaining 32 bits and sending in 48 bits of address field in destination address field, to obtain being applicable to described mobile network's RTS agreement, and by described base station, new described RTS agreement is sent to described mobile device.
Then, in step S4, the described RTS agreement that described high-speed communication system obtains based on described mobile device, second parameter information of the described mobile device the present situation of reflection is assigned in the spare bits of CTS agreement, and based on described the first identification information, described CTS agreement is sent to described base station by described mobile device, so that described base station communicates with described mobile device taking in the time of described public frequency range.Wherein, described the second parameter information comprises that described mobile device offers the relevant information of described base station in order to communicate with described base station, and it includes but not limited to: buffer memory report, channel quality indication, Resource Block take situation etc.
Described CTS agreement refers to communicate for two equipment in WLAN (wireless local area network) the permission transmission agreement that responds RTS agreement in front Handshake Protocol.The spare bits of described CTS agreement comprise any in described CTS agreement the definition of bit be originally unsuitable for those bits of described mobile network communication, it includes but not limited to: idle bit in frame control field in CTS agreement.For example, the 12nd bit in the frame control field in described CTS agreement represents retransmission bits position in WLAN, because control frame retransmits without queuing up, therefore this bit is spare bits in handshake communication.More preferably, while accessing due to described mobile device the mobile network that described base station covers, obtained each other the other side's identification information, therefore described base station and described mobile device are no longer " stealthy equipment " each other, described spare bits also comprises: described in CTS agreement, send the corresponding bit in address.
Particularly, described high-speed communication system, according to default RTS protocol rule, is resolved obtained RTS agreement, and the first parameter information based in described RTS agreement feeds back to corresponding the second parameter information in described base station.
For example, described high-speed communication system is resolved the information that comprises resource block assignments situation in the RTS agreement of obtaining, the part of the situation that takies that described high-speed communication system takies this Resource Block using described mobile device in the second parameter information, be encapsulated in the spare bits of CTS agreement, and by described mobile device, the described CTS agreement after encapsulation be sent to described base station.
Thus, described base station and described mobile device complete shakes hands, and starts to communicate in described public frequency range.
It should be noted that, it should be appreciated by those skilled in the art that not certain execution continuously between above-mentioned steps S1, S2 and step S3, S4.Wherein, step S1 and S2 carry out when described mobile device accesses the mobile network that described base station covers, when described base station monitors is idle to public frequency range, just carry out described step S3 and step S4, so that described base station and described mobile device are realized high-speed traffic taking in the time of public frequency range.
Fig. 2 is the structural representation that the public frequency range of use of the present invention is carried out the system of high-speed traffic.Described high-speed communication system 1 comprises: detection module 11, synchronization module 12, request module 13 and respond module 14.Wherein, described detection module 11, synchronization module 12 and respond module 14 are for being arranged on the application module in mobile device 2, and request module 13 is for being arranged on the application module in base station 3.
Described detection module 11 detects the synchronizing signal that mobile device 2 obtains, and from described synchronizing signal, extracts the first identification information of the corresponding base station 3 of described synchronizing signal.Wherein, described the first identification information comprises any information that can identify described base station 3, it includes but not limited to: the address information of described base station 3, described mobile device 2 are at the cell information of 3 Serving cells, described base station, preferably, described the first identification information is the sector identifier of the respective sectors that covers in described base station 3 of described mobile device 2.
Particularly, the frequency range of described mobile device 2 based on default obtained the synchronizing signal from base station 3, the protocol rule of the synchronizing signal of described detection module 11 based on default detects synchronizing signal described in this frequency range, and from described synchronizing signal, extracts the first identification information of described base station 3.
For example, described base station 3 each 5ms send a synchronizing signal, when described mobile device 2 obtains based on competition mechanism the resource that takies public frequency range, described mobile device 2 starts to obtain described synchronizing signal in default frequency range, then, by described detection module 11, detect the synchronizing signal of obtaining, to obtain sending the first identification information of the base station 3 of described synchronizing signal, and preserved.
Then, the mobile network that described synchronization module 12 covers the described mobile device 2 described base stations 3 of access based on described the first identification information, so that described base station 3 is described mobile device 2, distribute the second identification information, and described the second identification information is offered to described mobile device 2.Wherein, described the second identification information comprises the identification information that can distinguish each mobile device 2 in described mobile network that any described base station 3 is distributed for described mobile device 2, it includes but not limited to: IP address, preferably, described the second identification information is Cell Radio Network Temporary Identifier/Identity, Cell-RNTI information.
It should be noted that, it should be appreciated by those skilled in the art that described base station 3, for the mode that described mobile device 2 distributes the second identification information, is not described in detail in this.
For example, first identification information of described synchronization module 12 based on detected sends the mobile network's of its covering of access access information to corresponding base station 3, described base station 3 is the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI that described mobile device 2 distributes 16 bits based on this access information, and described Cell Radio Network Temporary Identifier/Identity, Cell-RNTI is sent to described mobile device 2, to confirm the described mobile network of described mobile device 2 access.
Thus, described mobile device 2 is synchronizeed with described base station 3.
In described base station 3, listen to public frequency range during the free time, described request module 13 can be assigned to the described base station 3 of reflection in the spare bits of RTS agreement (sending request agreement) with the first parameter information that described mobile device 2 is communicated by letter, and by described base station 3, described RTS agreement is sent to described mobile device 2.Wherein, the first parameter information when communicate by letter with described mobile device 2 in described base station 3 comprises any the first parameter information for guaranteeing that described base station 3 and described mobile device 2 communicate of being determined by described base station 3, it includes but not limited to: downstream channel bandwidth, the through-put power of reference signal, physical layer hybrid automatic repeat request indication channel (PHICH) configuration, help synchronously to play the part of the System Frame Number of timing reference simultaneously, the configuration of described base station 3 transmit antennas, with pre-scheduling of resource, preferably, described the first parameter information also comprises: 2 groups of signs of mobile device 2/ mobile device, resource block assignments, the distribution duration of Resource Block, many aerial informations, modulation intelligence, load, the pre-scheduling of uplink authorization, mobile device 2 transformation parameters etc.
Described RTS agreement is that the request that in WLAN (wireless local area network), two equipment communicate in front Handshake Protocol sends agreement.Spare bits in described RTS agreement refers to the definition of original bit when the mobile network of described RTS protocol application to be unsuitable for those bits of described mobile network communication or the respective field of described RTS agreement remaining bit after described request module 13 is redistributed.It includes but not limited to: idle bit etc. in frame control field in RTS agreement.Particularly, described spare bits comprises: 9-12 position and 14-16 position in frame control field in described RTS agreement.For example, the 9th in the frame control byte of described RTS agreement is " going to DS " bit, in mobile network without the control frame that sends or receive " going to DS ", therefore this position be spare bits more preferably, described request module 13 is the receiver address in described RTS agreement using the corresponding Cell Radio Network Temporary Identifier/Identity, Cell-RNTI information of described mobile device 2 that is about to communicate by letter, therefore described request module 13 replaces to 16 described Cell Radio Network Temporary Identifier/Identity, Cell-RNTI information and spare bits by 48 destination address fields default in RTS agreement, therefore described spare bits also comprises remaining 32 bits in destination address field.More preferably, after the mobile network that the described mobile device 2 described base stations 3 of access cover, realized and the synchronizeing of described base station 3, described base station 3 and described mobile device 2 are no longer " stealthy equipment " each other, therefore the transmission address in RTS agreement (48 bit) can be omitted, described spare bits also comprises the corresponding bit in described transmission address.
For example, described request module 13 is chosen described base station 3 and is used for necessity first parameter information of transmission: the configuration of the through-put power of downstream channel bandwidth, reference signal, physical layer hybrid automatic repeat request indication channel (PHICH), help synchronously to play the part of configuration and the pre-scheduling of resource of the System Frame Number of timing reference, described base station 3 transmit antennas simultaneously, according to default rule, above-mentioned the first parameter information is assigned in the frame control field in RTS agreement in 9-12 position and 14-16 position.Thus, obtain being applicable to described mobile network's RTS agreement, and by described base station 3, new described RTS agreement is sent to described mobile device 2.
And for example, the grouping situation of the described mobile device 2 that described request module 13 accesses based on described base station 3 and resource block assignments situation, on the basis of choosing necessary the first parameter information, add other the first parameter information, and selected whole the first parameter informations are assigned to 9-12 position in the frame control field in RTS agreement, 14-16 position and send in 48 bits of address field, to generate, be applicable to described mobile network's RTS agreement, and by described base station 3, new described RTS agreement be sent to described mobile device 2.
For another example, described request module 13 replaces to the destination address field in described RTS agreement (48) the described Cell Radio Network Temporary Identifier/Identity, Cell-RNTI information of only having 16, the first parameter information when communicated by letter with described mobile device 2 in described base station 3 is again assigned to 9-12 position in the frame control field in described RTS agreement, 14-16 position, remaining 32 bits and sending in 48 bits of address field in destination address field, to obtain being applicable to described mobile network's RTS agreement, and by described base station 3, new described RTS agreement is sent to described mobile device 2.
Then, the described RTS agreement that described respond module 14 is obtained based on described mobile device 2, second parameter information of described mobile device 2 the present situations of reflection is assigned in the spare bits of CTS agreement, and based on described the first identification information, described CTS agreement is sent to described base station 3 by described mobile device 2, so that described base station 3 communicates with described mobile device 2 taking in the time of described public frequency range.Wherein, described the second parameter information comprises that described mobile device 2 offers the relevant information of described base station 3 in order to communicate with described base station 3, and it includes but not limited to: buffer memory report, channel quality indication, Resource Block take situation etc.
Described CTS agreement refers to communicate for two equipment in WLAN (wireless local area network) the permission transmission agreement that responds RTS agreement in front Handshake Protocol.The spare bits of described CTS agreement comprise any in described CTS agreement the definition of bit be originally unsuitable for those bits of described mobile network communication, it includes but not limited to: idle bit in frame control field in CTS agreement.For example, the 12nd bit in the frame control field in described CTS agreement represents retransmission bits position in WLAN, because control frame retransmits without queuing up, therefore this position is spare bits in handshake communication.More preferably, cover due to the described mobile device 2 described base stations 3 of access mobile network time obtained each other the other side's identification information, therefore described base station 3 and described mobile device 2 are no longer " stealthy equipment " each other, described spare bits also comprises: described in CTS agreement, send the corresponding bit in address.
Particularly, described respond module 14, according to default RTS protocol rule, is resolved obtained RTS agreement, and the first parameter information based in described RTS agreement feeds back to corresponding the second parameter information in described base station 3.
For example, described respond module 14 is resolved the information that comprises resource block assignments situation in the RTS agreement of obtaining, the part of the situation that takies that described respond module 14 takies this Resource Block using described mobile device 2 in the second parameter information, be encapsulated in the spare bits of CTS agreement, and by described mobile device 2, the described CTS agreement after encapsulation be sent to described base station 3.
Thus, described base station 3 completes and shakes hands with described mobile device 2, and starts to communicate in described public frequency range.
It should be noted that, it should be appreciated by those skilled in the art that not certain execution continuously between above-mentioned synchronization module 12 and request module 13, respond module 14.Wherein, during mobile network that synchronization module 12 covers in the described mobile device 2 described base stations 3 of access, carry out, until described base station 3, monitor public frequency range during the free time, just carry out the RTS agreement that described request module 13 sends before communication to described mobile device 2, follow described respond module 14 response CTS agreements, so that described base station 3 and described mobile device 2 exchange parameter information, realized thus described base station 3 and described mobile device 2 and realized high-speed traffic taking in the time of public frequency range.
In sum, the method and system that the public frequency range of use of the present invention is carried out high-speed traffic, by utilizing WLAN at the Handshake Protocol of public frequency range, improve before mobile device and base station take public frequency range and communicate, set up the problem of the overlong time of communication, particularly, for mobile network's feature, redistribute in RTS/CTS agreement and be only applicable to the bit in WLAN, effectively reduced mobile device and base station and communicated by letter front transfer time of parameter information each other; Simultaneously, consider mobile network's feature, the mobile network who first mobile device access base station is covered, make mobile device and base station before communicating by letter each other no longer " stealth ", so, can from RTS/CTS agreement, compress more spare bits, to distribute the parameter information between described mobile device and base station.So the present invention has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (12)
1. a method of using public frequency range to carry out high-speed traffic, is characterized in that, described method at least comprises:
When mobile device detects obtained synchronizing signal, from described synchronizing signal, extract the first identification information of the base station corresponding with it;
Based on described the first identification information, described mobile device is accessed to the mobile network that described base station covers, described base station is that described mobile device distributes the second identification information, and described the second identification information is offered to described mobile device;
In described base station, listen to public frequency range during the free time, the described base station of reflection can be assigned in the spare bits of RTS agreement with the first parameter information of described mobile device communication, and by described base station, described RTS agreement be sent to described mobile device;
The described RTS agreement of obtaining based on described mobile device, second parameter information of the described mobile device the present situation of reflection is assigned in the spare bits of CTS agreement, and based on described the first identification information, described CTS agreement is sent to described base station by described mobile device, so that described base station communicates with described mobile device taking in the time of described public frequency range.
2. the method that the public frequency range of use according to claim 1 is carried out high-speed traffic, it is characterized in that, the spare bits in described RTS agreement at least comprises: in RTS agreement, in frame control field, in idle bit, RTS agreement, in destination address field, in the remaining bits position except described the second identification information, RTS agreement, send a kind of in address field.
3. the method that the public frequency range of use according to claim 1 is carried out high-speed traffic, it is characterized in that, the spare bits in described CTS agreement at least comprises: in CTS agreement, in frame control field, described in idle bit, CTS agreement, send a kind of in the corresponding bit in address.
4. the method that the public frequency range of use according to claim 1 is carried out high-speed traffic, it is characterized in that, described the first parameter information at least comprises: the configuration of the through-put power of downstream channel bandwidth, reference signal, physical layer hybrid automatic repeat request indication channel, help when synchronous to play the part of the System Frame Number of timing reference, the configuration of described base station transmit antennas and pre-scheduling of resource.
5. the method that the public frequency range of use according to claim 1 is carried out high-speed traffic, is characterized in that, described the first identification information is the sector identifier that described base station sets in advance.
6. the method that the public frequency range of use according to claim 1 is carried out high-speed traffic, is characterized in that, described the second identification information is Cell Radio Network Temporary Identifier/Identity, Cell-RNTI information.
7. a system of using public frequency range to carry out high-speed traffic, is characterized in that, described system at least comprises:
Detection module, the synchronizing signal of obtaining for detection of mobile device, and from described synchronizing signal, extract the first identification information of its corresponding base station;
Synchronization module, for described mobile device being accessed to the mobile network that described base station covers based on described the first identification information, distributes the second identification information so that described base station is described mobile device, and described the second identification information is offered to described mobile device;
Request module, for listening to public frequency range in described base station during the free time, the described base station of reflection can be assigned in the spare bits of RTS agreement with the first parameter information of described mobile device communication, and by described base station, described RTS agreement be sent to described mobile device;
Respond module, for the described RTS agreement of obtaining based on described mobile device, second parameter information of the described mobile device the present situation of reflection is assigned in the spare bits of CTS agreement, and based on described the first identification information, described CTS agreement is sent to described base station by described mobile device, so that described base station communicates with described mobile device taking in the time of described public frequency range.
8. the system that the public frequency range of use according to claim 7 is carried out high-speed traffic, it is characterized in that, the spare bits in described RTS agreement at least comprises: in RTS agreement, in frame control field, in idle bit, RTS agreement, in destination address field, in the remaining bits position except described the second identification information, RTS agreement, send a kind of in address field.
9. the system that the public frequency range of use according to claim 7 is carried out high-speed traffic, it is characterized in that, the spare bits in described CTS agreement at least comprises: a kind of in idle bit, the transmission address field in CTS agreement in frame control field in CTS agreement.
10. the system that the public frequency range of use according to claim 7 is carried out high-speed traffic, it is characterized in that, described the first parameter information at least comprises: the configuration of the through-put power of downstream channel bandwidth, reference signal, physical layer hybrid automatic repeat request indication channel, help when synchronous to play the part of the System Frame Number of timing reference, the configuration of described base station transmit antennas and pre-scheduling of resource.
The system that the public frequency range of 11. use according to claim 7 is carried out high-speed traffic, is characterized in that, described the first identification information is the sector identifier of the respective sectors that covers in described base station of described mobile device.
The system that the public frequency range of 12. use according to claim 7 is carried out high-speed traffic, is characterized in that, described the second identification information is Cell Radio Network Temporary Identifier/Identity, Cell-RNTI information.
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