CN102711217B - Communication method, device and system - Google Patents
Communication method, device and system Download PDFInfo
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- CN102711217B CN102711217B CN201210202654.3A CN201210202654A CN102711217B CN 102711217 B CN102711217 B CN 102711217B CN 201210202654 A CN201210202654 A CN 201210202654A CN 102711217 B CN102711217 B CN 102711217B
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Abstract
The invention relates to a communication method, a communication device and a communication system. The method comprises the following steps that: a first base station searches for base stations in a neighboring area, and sets an acquired base station with the best signal quality and/or the minimum load as a second base station; the first base station acquires a first frame carried by a first carrier of the second base station, which is used for communicating with the first base station, and analyzes the first frame to acquire a first frame structure; the first base station regulates a second frame structure of a second frame carried by a second carrier of the first base station, and the regulated second frame structure is matched with the first frame structure; and the first base station communicates with a terminal by using information carried by the second frame of which the structure is regulated. By the embodiment of the invention, the problem of difficulty in data transmission without a cable transmission link is solved, and normal communication between the base stations and a core network is realized by regulating the frame structures and establishing a null interface transmission channel.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of communication means, device and system.
Background technology
Time-division Long Term Evolution (Time Division Long Term Evolution, TD LTE) be time division duplex (the Time Division Duplexing of LTE, TDD) pattern, TD LTE technology can be used to provide transmission link, when the transmission technology such as optical fiber or microwave cannot be used, TD LTE technology is used to realize high-speed transfer.
Return link is the communication link between radio reception device and core network device, has usually come by means of the equipment such as optical fiber or microwave.Due at a lot of application scenarios, as base station set up temporarily, wired transmission links does not set up in time or infringement, wired transmission links such as cannot to set up at the scene, there is no the wired transmission links such as optical fiber or microwave, cause base station to arrive the interruption of core net communication link, cause the transmission cannot carrying out data between base station and core net.
Summary of the invention
Embodiments provide a kind of communication means, device and system, when there is no wired transmission links, the proper communication between base station and core net can be realized, reducing arrange net cost and operation cost.
First aspect, embodiments provides a kind of communication means, and described method comprises:
The base station of the first base station to adjacent area is searched for, using the signal quality that searches preferably and/or the lightest base station of load as the second base station;
Described first base station obtains first frame for carrying with the first carrier carried out communicating in described first base station of described second base station, carries out parsing obtain the first frame structure to described first frame;
Second frame structure of the second frame that the second carrier wave that described first base station adjusts described first base station carries,, there is not the subframe type pair of receiving and dispatching and conflicting with the second frame after making described adjustment with described first frame in described second frame structure after adjustment and described first frame structure adaptation; ;
The information of the second frame carrying after described first base station utilizes adjustment frame structure communicates with terminal.
Second aspect, embodiments provides a kind of communication means, and described method comprises:
Second base station receives the request message of the replacing of the first base station transmission and/or the first frame structure of adjustment the first frame;
Described first frame structure is changed and/or adjusted in described second base station, according to described request message;
Described second base station sends to described first base station the response message changing and/or adjust described first frame structure;
Described second base station receives the networking request message that described first base station sends, networking response message is sent to described first base station, in order to make the air interface transmission passage between described first base station foundation with described second base station, and utilize the information of the described first frame carrying after described first frame structure of adjustment and described first base station communication.
The third aspect, embodiments provides a kind of communicator, and described device comprises:
Search unit, searches for for the base station of the first base station to adjacent area, using the signal quality that searches preferably and/or the lightest base station of load as the second base station;
Acquiring unit, obtaining first frame for carrying with the first carrier carried out communicating in described first base station of described second base station, carrying out parsing obtain the first frame structure to described first frame for described first base station;
Adjustment unit, for the second frame structure of the second frame that the second carrier wave in described first described first base station of adjustment, base station carries,, there is not the subframe type pair of receiving and dispatching and conflicting with the second frame after making described adjustment with described first frame in described second frame structure after adjustment and described first frame structure adaptation;
Communication unit, the information of the second frame carrying after utilizing adjustment frame structure for described first base station communicates with terminal.
Fourth aspect, embodiments provides a kind of communicator, and described device comprises:
Receiving element, receives the request message of the replacing of the first base station transmission and/or the first frame structure of adjustment the first frame for the second base station;
Adjustment unit, for described second base station according to described request message, changes and/or adjusts described first frame structure;
First transmitting element, sends to described first base station the response message changing and/or adjust described first frame structure for described second base station;
Communication unit, the networking request message of described first base station transmission is received for described second base station, networking response message is sent to described first base station, in order to make the air interface transmission passage between described first base station foundation with described second base station, and utilize the information of the described first frame carrying after described first frame structure of adjustment and described first base station communication.
5th aspect, embodiments provides a kind of communication system, and described system comprises above-mentioned communicator, and terminal.
In the communication means that the embodiment of the present invention provides, device and system, the base station of the first base station to adjacent area is searched for, using the signal quality that searches preferably and/or the lightest base station of load as the second base station; Obtaining first frame for carrying with the first carrier carried out communicating in described first base station of described second base station, parsing being carried out to described first frame and obtains the first frame structure; Adjust the second frame structure of the second frame that the second carrier wave in described first base station carries, described second frame structure after adjustment and described first frame structure adaptation, described second frame structure and described first frame structure are adapted for described second frame and there is not the subframe type pair of receiving and dispatching and conflicting with described first frame; The information of the second frame carrying after described first base station utilizes adjustment frame structure communicates with terminal.Second base station receives the request message of the replacing of the first base station transmission and/or the first frame structure of adjustment the first frame; According to described request message, change and/or adjust described first frame structure; The response message changing and/or adjust described first frame structure is sent to described first base station; Receive the networking request message that described first base station sends, networking response message is sent to described first base station, in order to make the air interface transmission passage between described first base station foundation with described second base station, and utilize the information of the described first frame carrying after described first frame structure of adjustment and described first base station communication.The embodiment of the present invention achieves the proper communication that the first base station realizes between the first base station and core net by the air interface transmission passage set up between the second base station thus, reduces arrange net cost and operation cost.
Accompanying drawing explanation
The system scenarios schematic diagram of the communication means application that Fig. 1 provides for the embodiment of the present invention;
A kind of communication means flow chart that Fig. 2 provides for the embodiment of the present invention;
The another communication means flow chart that Fig. 3 provides for the embodiment of the present invention;
A kind of communication means flow chart that Fig. 4 provides for the embodiment of the present invention;
A kind of communicator schematic diagram that Fig. 5 provides for the embodiment of the present invention;
The another communicator schematic diagram that Fig. 6 provides for the embodiment of the present invention.
Embodiment
In below describing, in order to illustrate instead of in order to limit, propose the detail of such as particular system structure, interface, technology and so on, understand the present invention thoroughly to cut.But, it will be clear to one skilled in the art that and also can realize the present invention in other embodiment not having these details.In other situation, omit the detailed description to well-known device, circuit and method, in order to avoid unnecessary details hinders description of the invention.
The techniques described herein may be used in various communication system, such as time division multiple access (TDMA, Time Division Multiple Access) system, Wideband Code Division Multiple Access (WCDMA) (WCDMA, Wideband Code Division Multiple Access Wireless), frequency division multiple access (FDMA, Frequency Division Multiple Addressing) system, OFDM (OFDMA, Orthogonal Frequency-Division Multiple Access) system, GPRS (GPRS, General Packet Radio Service) system, Long Term Evolution (LTE, Long Term Evolution) system, and other these type of communication systems.
In conjunction with terminal and/or base station and/or core net, various aspect is described herein.
Terminal can be wireless terminal also can be catv terminal, and wireless terminal can be point to the equipment that user provides voice and/or data connectivity, has the portable equipment of wireless connecting function or is connected to other treatment facilities of radio modem.Wireless terminal can through wireless access network (such as, RAN, Radio Access Network) communicate with one or more core net, wireless terminal can be mobile phone (or being called " honeycomb " phone) and the computer with terminal, such as, can be portable, pocket, hand-hold type, built-in computer or vehicle-mounted mobile device, they and wireless access network exchange language and/or data.Such as, Personal Communications Services (PCS, Personal Communication Service) phone, cordless telephone, Session initiation Protocol (SIP) phone, wireless local loop (WLL, Wireless Local Loop) stand, the equipment such as personal digital assistant (PDA, Personal Digital Assistant).Wireless terminal also can be called system, subscri er unit (Subscriber Unit), subscriber station (Subscriber Station), mobile radio station (Mobile Station), travelling carriage (Mobile), distant station (Remote Station), access point (Access Point), remote terminal (Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), subscriber equipment (User Device), or subscriber's installation (User Equipment).
Base station (such as, access point) can to refer in Access Network the equipment by one or more sector and wireless terminal communications on aloft interface.Base station can be used for the air frame received and IP to divide into groups mutually to change, and as the router between wireless terminal and the remainder of Access Network, wherein the remainder of Access Network can comprise Internet protocol (IP) network.Base station also tunable to the attribute management of air interface.Such as, base station can be the evolved base station (eNodeB) in LTE (Long Term Evolution, long-term evolving network), and the present invention does not limit.
For core net, the present invention does not limit.
In addition, term " system " and " network " are often used interchangeably in this article herein.Term "and/or" herein, being only a kind of incidence relation describing affiliated partner, can there are three kinds of relations in expression, and such as, A and/or B, can represent: individualism A, exists A and B simultaneously, these three kinds of situations of individualism B.In addition, character "/" herein, general expression forward-backward correlation is to the relation liking a kind of "or".
The system scenarios schematic diagram of the communication means application that Fig. 1 provides for the embodiment of the present invention.As shown in Figure 1, the method of the Path Setup that the embodiment of the present invention provides is when practical application, the transmission link that can be applicable to the first base station and core net as a kind of new communication means disconnects or the transmission link overload of the first base station and core net, will set up the scene of proper communication by the second base station and core net.The transmission link of the first base station and core net disconnect or the transmission link overload of the first base station and core net time, the base station of first searching neighboring area, the first base station, and using base station best for signal quality as the second base station will setting up with it air interface transmission passage; Then the structure adjusting frame is come, thus makes the first base station realize the proper communication between core net by the air interface transmission passage set up between the second base station.
The embodiment of the present invention, for the defect of prior art, provides a kind of communication means, device and system.The base station of the first base station to adjacent area is searched for, using the signal quality that searches preferably and/or the lightest base station of load as the second base station; Obtaining first frame for carrying with the first carrier carried out communicating in described first base station of described second base station, parsing being carried out to described first frame and obtains the first frame structure; Second frame structure of the second frame that the second carrier wave adjusting described first base station carries,, there is not the subframe type pair of receiving and dispatching and conflicting with the second frame after making described adjustment with described first frame in described second frame structure after adjustment and described first frame structure adaptation; The information of the second frame carrying after described first base station utilizes adjustment frame structure communicates with terminal.Second base station receives the request message of the replacing of the first base station transmission and/or the first frame structure of adjustment the first frame; According to described request message, change and/or adjust described first frame structure; The response message changing and/or adjust described first frame structure is sent to described first base station; Receive the networking request message that described first base station sends, networking response message is sent to described first base station, in order to make the air interface transmission passage between described first base station foundation with described second base station, and utilize the information of the described first frame carrying after described first frame structure of adjustment and described first base station communication.The embodiment of the present invention achieves the proper communication that the first base station realizes between core net by the air interface transmission passage set up between the second base station thus, reduces arrange net cost and operation cost.
A kind of communication means flow chart that Fig. 2 provides for the embodiment of the present invention.This embodiment main body is the first base station, and as shown in Figure 2, the present embodiment comprises the following steps:
Step 201, the base station of the first base station to adjacent area is searched for, using the signal quality that searches preferably and/or the lightest base station of load as the second base station.
In actual applications, there is the possibility much causing the transmission link between base station and core net obstructed, as base station is set up, manually deliberately damaged temporarily, nature outburst natural calamity etc., now there is no available wired transmission links between base station and core net, now the signal quality of base station search adjacent area good, with the base station of core net proper communication, or search for corresponding base station according to the configuration of oneself, and using the signal quality that searches preferably and the lightest base station of/load as the second base station.And determine whether set up air interface transmission passage with this second base station by operation below.
Step 202, the first base station obtains first frame for carrying with the first carrier carried out communicating in described first base station of described second base station, carries out parsing obtain the first frame structure to described first frame.
The system message of the second base station can be monitored in first base station, and the frame that the first carrier about the second base station in extraction system message carries, then by parse for frame, obtain the first frame structure of first carrier.
It should be noted that, the frame structure of the frame of the carriers carry of the second base station can have polytype.As the TD LTE that specifies in TD LTE protocol 3GPP TS36.211 the frame structure that uses just have 7 types, as shown in table 1.
The frame structure that table 1TD LTE uses
In table 1; D represents descending sub frame, S represents special subframe; U represents sub-frame of uplink; wherein; special subframe is by DwPTS (Downlink Pilot Time Slot; down link pilot timeslot), GP (Guard Space, protection interval), UpPTS (Uplink Pilot Time Slot, uplink pilot time slot) composition.
In the embodiment of the present invention, the first base station and the second base station can use the frame in table 1 to transmit data, also can use the frame of other types, will introduce in detail below, and repeat no more herein according to certain frame.
There is multiple carrier wave each base station, the frame structure of the frame carried with the first carrier that the first base station carries out communicating only obtaining the second base station in this step.
Step 203, adjust the second frame structure of the second frame that the second carrier wave in described first base station carries,, there is not the subframe type pair of receiving and dispatching and conflicting with the second frame after making described adjustment with described first frame in described second frame structure after adjustment and described first frame structure adaptation.
According to the first frame structure obtained in step 202, judge that the second frame structure whether having the second carrier wave to carry in the first base station can become the frame with the first frame structure adaptation by adjustment.If by judging, finding that the first base station has and by adjusting thus becoming the frame structure with the first frame structure adaptation, then can adjust the second frame structure, make it adaptive with the first frame structure.
It should be noted that, the adjustment of frame structure must meet the regulation of agreement, namely the subframe carrying synchronous channel information and broadcast channel information of each frame can not be wasted, and the object of adjustment is that the first frame structure and the second frame structure are adaptive, the lock in time that the adaptation of frame structure is the subframe of traffic carrier staggered with the lock in time of the subframe of passback carrier wave, the subframe type pair of transmitting-receiving conflict can not be there is in the carrier wave of i.e. same base station, maybe can only can only send signal by Received signal strength at one time, can not receive and dispatch simultaneously.
When all frame structures in the first base station by adjustment all can not adaptive with the first frame structure time, then the first base station sends a request message to the second base station, asks the second base station to be changed and/or adjustment the first frame structure; If the second base station is changed according to request message or be have adjusted the first frame structure, then the first base station is according to the first frame structure after adjustment, again adjusts the second frame structure, adaptive with the second frame structure after making the first frame structure after adjustment and adjusting.If the second base station refusal is changed or adjustment frame structure, then the first base station more again search be used for setting up the base station of air interface transmission passage as the second base station.
Step 204, the information of the second frame carrying after described first base station utilizes adjustment frame structure communicates with terminal.
First base station adjusts after the second frame structure makes the first frame structure and the second frame structure adaptation, sends networking request message, in order to set up the air interface transmission passage between described first base station and described second base station to described second base station.
After setting up air interface transmission passage, the carrier wave that the first base station activation is all, and utilize the information of the second frame carrying after adjustment frame structure to communicate with terminal.
After first base station receives the data that terminal sends, use the first frame and described second base station by air interface transmission passage with communicate, the proper communication between terminal and core net can be recovered like this.
In the embodiment of the present invention, the base station of the first base station to adjacent area is searched for, using the signal quality that searches preferably and/or the lightest base station of load as the second base station; Obtaining first frame for carrying with the first carrier carried out communicating in described first base station of described second base station, parsing being carried out to described first frame and obtains the first frame structure; Adjust the second frame structure of the second frame that the second carrier wave in described first base station carries, described second frame structure after adjustment and described first frame structure adaptation; The information of the second frame carrying after described first base station utilizes adjustment frame structure communicates with terminal.The embodiment of the present invention achieves the proper communication that the first base station realizes between core net by the air interface transmission passage set up between the second base station thus.
For the ease of understanding the technical scheme of the embodiment of the present invention better, with more specifically embodiment, more detailed description is carried out to technical scheme of the present invention below.
The another communication means flow chart that Fig. 3 provides for the embodiment of the present invention.This embodiment main body is the first base station, wherein describes the method for the first base station adjustment frame structure in further detail.As shown in Figure 3, the present embodiment comprises the following steps:
Step 301, the base station of the first base station to adjacent area is searched for, using the signal quality that searches preferably and/or the lightest base station of load as the second base station.
In actual applications, there is the possibility much causing the transmission link between base station and core net obstructed, as base station is set up, manually deliberately damaged temporarily, nature outburst natural calamity etc., now there is no available wired transmission links between base station and core net, now the signal quality of base station search adjacent area good, with the base station of core net proper communication, or search for corresponding base station according to the configuration of oneself, and using the signal quality that searches preferably and the lightest base station of/load as the second base station.
Step 302, the first base station obtains first frame for carrying with the first carrier carried out communicating in described first base station of described second base station, resolves, obtain the first frame structure to the first frame.
The system message of the second base station can be monitored in first base station, and the first frame carried with the first carrier carried out communicating in the first base station about the second base station in extraction system message.In order to definitely describe technical scheme of the present invention, the description of the technical program will be carried out for concrete frame structure below.
Step 303, the first base station judges the second frame that whether there is the second carriers carry in described first base station, and described second frame structure can be adaptive with described first frame structure after adjustment.
According to the first frame structure of first carrier, judge whether there is frame structure in the first base station by time delay, and/or do not use part sub-frame of uplink resource or part descending sub frame resource to realize the second frame with the first frame structure adaptation.If had, then perform step 304, otherwise perform step 305.
Step 304, the first base station adjusts the second frame structure, to make described second frame structure after adjustment and described first frame structure adaptation.
When the first base station can be realized with first year frame structure adaptation by adjustment second frame structure, adjust the second frame structure.
The concrete operations adjusting the frame structure of the frame that described second carrier wave carries are: the special subframe that described second frame comprises is adjusted to descending sub frame; According to described first frame structure, by the multiple subframe of described second carrier delay; Judge that described second frame after postponing multiple subframe is received and dispatched the subframe type centering of conflicting with described first frame and whether comprised the subframe of carrying synchronous channel information and broadcast channel information, if do not comprised, then do not send the subframe in the second frame of the subframe type centering of described transmitting-receiving conflict.
Receive and dispatch before whether the subframe type centering of conflicting comprise the subframe of carrying synchronous channel information and broadcast channel information judging to postpone described second frame after multiple subframe and described first frame, first base station also will judge whether described second frame exists the subframe type pair of receiving and dispatching and conflicting with described first frame, if existed, then described second frame after execution judges the multiple subframe of delay and described first frame receive and dispatch the step whether the subframe type centering of conflicting comprises the subframe of carrying synchronous channel information and broadcast channel information.
During conducting frame structural adjustment, three kinds of methods can be used, i.e. the method for time migration; Do not use part sub-frame of uplink resource and/or some descending sub frame resource; Front two are combined with method.When practical application, because the impact of time migration method on system is minimum, the method that therefore can preferentially offset service time adjusts frame structure, if service time, offset method cannot complete the adaptation of frame structure merely, then can adjust frame structure in conjunction with second method.It should be noted that, the adjustment of frame structure is minimum for Adjustment principle with the impact brought system, and can not slattern in frame and carry important synchronous channel information and the subframe of system broadcast information.
For example, if the frame structure of the frame of first carrier carrying is the 0th kind of structure in table 1, be: D S U U U D S U U U, then known by judging, the 1st kind of frame structure in table 1, namely DS U U D D S U U D can realize adaptation by the method for time delay.By the second carrier delay two subframes, two kinds of frame structures can realize adaptation, and namely two kinds of frame structures do not exist the subframe of receiving and dispatching conflict, as follows:
First frame structure: U U D S U U U D S U
Postpone the second frame structure after two subframes: D S U U D D S U U D
As seen from the above, after postponing two subframes, just there is not the subframe structure of transmitting-receiving conflict in two kinds of frame structures.
It should be noted that, for the frame structure just having 7 types that the TD LTE specified in TD LTE protocol 3GPP TS36.211 uses, when first carrier and the second carrier wave send time, the subframe pair of 6 types in synchronization, may be there is, as shown in table 2.
Table 2 subframe type pair
In table 2, may bring the subframe type of transmitting-receiving conflict to for subframe type to 1, subframe type to 2, subframe type to 4, subframe type is to 5.
Below for several subframe type pair bringing transmitting-receiving conflict, introduce and how to carry out conflict removal by adjustment frame structure.
When exist described in table 2 bringing transmitting-receiving conflict subframe type to 1 time, when namely first carrier and the second carrier wave are all sub-frame of uplink, the second carrier antenna is in accepting state, and first carrier antenna is in transmission state and wireless signal can be brought to disturb.At this moment use the second carrier delay, be i.e., when the method for time migration can not manage conflict, need the sub-frame of uplink resource of the traffic carrier slatterning passback source station.Do not send in sub-frame of uplink, up PUSCH (Physical Uplink Shared Channel can be avoided by dynamic dispatching method, physical uplink link shared channels) business datum, PUCCH (Physical Uplink Control Channel, physical uplink control channel), PRACH (Physical Random Access Channel, Physical Random Access Channel), reference signal Sounding can be completed by the reconfiguration message of Radio Resource and avoid sending data at this sub-frame of uplink, method exactly by destroying sub-frame of uplink completely protects the subframe of first carrier.
When exist described in table 2 bringing transmitting-receiving conflict subframe type to 2 time, namely when first carrier and the second carrier wave are all descending sub frames, first base station needs the subframe determining to need reception downlink business according to the downlink traffic transmission parameter of first carrier, if when needing to receive the data on first carrier, second carrier wave descending sub frame now does not just send any data, comprise reference signal, by system information, this descending sub frame of the second carrier wave is made into multicast broadcast single frequency network subframe.When the first base station does not need the data receiving this subframe of first carrier time, downlink data can be sent on a second carrier.Under normal circumstances, if when wanting the downlink data of this subframe of reception first carrier, just need this subframe of first carrier to be made into multicast broadcast single frequency network subframe, but do not send any data above.
When exist described in table 2 bringing transmitting-receiving conflict subframe type to 4 time, namely first carrier and the second carrier wave one be descending sub frame, one when being special subframe, downlink information comprises PCFICH (Physical Control Format Indicator Channel, Physical Control Format Indicator Channel) information, PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) information, physics HARQ information indicative channel information.PCFICH information indicates the numerical control of PDCCH information symbol within 2 (because the down link pilot timeslot DwPTS of special subframe is at the 3rd symbols carry PSS (Primary Synchronization Signal of special subframe, master sync signal), avoid the transmitting-receiving conflict of descending sub frame and special subframe like this.The situation that traffic carrier is different with the cyclic prefix type of passback carrier wave, because the symbol lengths of different Cyclic Prefix is different, PDCCH information symbol number will be decided to be 1 symbol), only Physical Downlink Control Channel information is sent in this descending sub frame, can not dispatch and send Physical Downlink Shared Channel information, to avoid downlink physical shared channel data to another carrier-in-interference.
PHICH channel does not send out ascending HARQ (Hybrid Automatic Repeat Request, hybrid automatic repeat-request) feedback information, and terminal thinks that ascending HARQ data do not send successfully and meeting retransmission data.PDCCH channel does not send, and terminal thinks that this subframe does not have downlink data and upstream bandwidth to distribute, and can broadcast this subframe be made into multicast broadcast single frequency network subframe by system message.
Step 305, the first base station sends to described second base station the request message changed and/or adjust the first frame structure, changes and/or adjustment the first frame structure to make the second base station.
If the second frame structure cannot be adjusted to the frame structure with the first frame structure adaptation by the method described in step 304 by the first base station, then the first base station is according to the second frame structure, after judging which kind of structure the first frame structure is replaced by by the second base station, by adjust the second frame structure can obtain with change after first the frame structure of frame structure adaptation.
Preferably, the first base station can also according to the second frame structure, after judging which subframe in the first frame slatterns by the second base station, by adjust the second frame structure can with adjustment after the first frame structure adaptive.Such as, if the first frame structure is the 2nd kind of frame structure in table 1, i.e. D S U D D D S U DD, and the second frame structure is the 6th kind of frame structure in table 1, i.e. D S U U U D S U U D, after the second carrier delay two subframes, still there is the subframe type pair of transmitting-receiving conflict in two kinds of frame structures, as follows:
First frame structure: D D D S U D D D S U
Postpone the second frame structure after two subframes: D S U U D D S U U D
As seen from the above, even if after the second frame structure postpones two subframes, in two kinds of frame structures still exist transmitting-receiving conflict subframe type to 2 and subframe type to 4, and the subframe D of the second carrier wave of the subframe type centering of these two kinds transmitting-receiving conflicts and subframe S is crucial subframe, namely important synchronous channel information and system broadcast information is carried, must send, that is by adjustment second frame structure, the frame with the first frame structure adaptation cannot be obtained, now the first base station can send a request message to the second base station, ask the second base station when dispatching downlink data, data are not carried in these two subframes, namely this two subframes are slatterned.
Preferably, second frame structure type can also be sent to the second base station by request message by the first base station, at this moment the second base station is in order to meet the demand of the communication of the first base station, which kind of also can oneself select the second frame structure is changed or is adjusted to frame structure, to make the first base station adaptive by adjusting next and after changing the first frame structure of the second frame structure.
Step 306, first base station receives the replacing/of described second base station according to the described request message transmission received or the response message of adjustment frame structure, according to described response message, adjust described second frame structure, to make the first frame structure after described second frame structure after adjustment and described adjustment adaptive.
Second base station is according to the request message received, by the adjustment of the frame structure of first carrier or a kind of adjustment frame structure can be replaced by, then response message is sent to the first base station, the indication information carrying adjustment frame structure is needed in message, after receiving this response message to make the first base station, according to the adjustment frame structure carried in response message, the second frame structure can be adjusted.
Concrete method of adjustment with reference to step 304, namely can use three kinds of methods: the method for time migration; Waste some sub-frame of uplink resource and/or some descending sub frame resource; Front two are combined with method.When practical application, because the impact of time migration method on system is minimum, the method that therefore can preferentially offset service time adjusts frame structure, if service time, offset method cannot complete the adaptation of frame structure merely, then can adjust frame structure in conjunction with second method.It should be noted that, the adjustment of frame structure is minimum for Adjustment principle with the impact brought system, and can not slattern in frame and carry important synchronous channel information and the subframe of system broadcast information
Step 307, the first base station receives the refusal replacing/of described second base station according to the described request message transmission received or the response message of adjustment frame structure.
Second base station can be made the decision of refusal adjustment or replacing frame structure, and send refuse information to the first base station after receiving the request message of the first base station transmission.
It should be noted that, after the first base station receives refuse information, search is again used for setting up the base station of air interface transmission passage as the second base station.
Step 308, the first base station sends networking request message, in order to set up the air interface transmission passage between described first base station and described second base station to described second base station.
If by adjustment, the frame structure of the frame structure of the second carrier wave of the first base station and the first carrier of the second base station is completely adaptive, then the first base station sends networking request message to the second base station, after second base station sends response message, the air interface transmission passage between the second base station can be set up in the first base station.
After setting up air interface transmission passage, the data that the mobile terminal received sends can be sent to the second base station by this air interface transmission passage by the first base station, send the data to core net by the second base station, realize the proper communication between the first base station and core net thus.
Step 309, activates all carrier waves in the first base station, in order to by described air interface transmission routing restoration first base station and the proper communication between terminal and core net.
It should be noted that, after the transmission link of the first base station and core net disconnects, all carrier waves can be closed by the first base station, now just cannot receive the data that mobile terminal sends, successfully to set up between the second base station after air interface transmission passage, all carrier waves can be activated in first base station, in order to the data of receiving terminal, recover to communicate normally.
In the embodiment of the present invention, the base station of the first base station to adjacent area is searched for, using the signal quality that searches preferably and/or the lightest base station of load as the second base station; Obtaining first frame for carrying with the first carrier carried out communicating in described first base station of described second base station, parsing being carried out to described first frame and obtains the first frame structure; Adjust the second frame structure of the second frame that the second carrier wave in described first base station carries, described second frame structure after adjustment and described first frame structure adaptation; The information of the second frame carrying after described first base station utilizes adjustment frame structure communicates with terminal.The embodiment of the present invention achieves the proper communication that the first base station realizes between core net by the air interface transmission passage set up between the second base station thus.
Two embodiments describe communication means the embodiment of the present invention from the angle of the first base station above, the angle from the second base station are introduced the communication means in the embodiment of the present invention below.
A kind of communication means flow chart that Fig. 4 provides for the embodiment of the present invention.This embodiment main body is the second base station, and as shown in Figure 4, the present embodiment comprises the following steps:
Step 401, the second base station receives the request message of the replacing of the first base station transmission and/or the first frame structure of adjustment the first frame.
After first base station disconnects the transmission link with core net, search the second base station for setting up air interface transmission passage, and get the first frame structure that first carrier that the second base station is used for carrying out communicating with the first base station carries, but the first base station cannot be adaptive with the first frame structure by the second frame structure of adjustment first base station, then now can send a request message to the second base station, ask the second base station to be changed and/or adjustment the first frame structure.Thus, the second base station just can receive the request message that the first base station sends.
Step 402, described first frame structure is changed and/or adjusted in the second base station, according to described request message.
When carrying the indication information changing described first frame structure in request message, described first frame structure can be replaced by the frame structure of described indication information instruction by the second base station.
When carrying the indication information adjusting described first frame structure in request message, the second base station does not send some subframe in the first frame according to indication information, to avoid the first base station, transmitting-receiving conflict occurs.
During the adjustment of the second base station conducting frame structure, the method for time migration need not be considered, only need to consider not send some subframe.
Preferably, when carrying the second frame structure in the request message that the first base station sends, the second base station also can be changed according to the judgement of oneself or adjustment the first frame structure.
Alternatively, the decision that refusal adjusts and/or changes frame structure can also be made in the second base station, and sends refuse information to the first base station, carries described second base station refusal and change and/or adjust the indication information of frame structure in refuse information.
Step 403, the second base station sends to described first base station the response message changing and/or adjust described first frame structure.
When the second base station adjustment or after changing frame structure, second base station will send response message to the first base station, carry the frame structure changed or obtain after adjustment in response message, in order to the first base station according to the frame structure after the second base station adjustment, adjust the frame structure of oneself.
Step 404, second base station receives the networking request message that described first base station sends, networking response message is sent to described first base station, in order to make the air interface transmission passage between described first base station foundation with described second base station, and utilize the information of the described first frame carrying after described first frame structure of adjustment and described first base station communication.
When the first base station is by adjustment second frame structure, frame structure adaptive after the first frame structure after obtaining and adjusting, the first base station sends networking request message to the second base station, and air interface transmission passage is set up in request and the second base station.Thus, the second base station receives this request message, and after sending response message to the first base station, the air interface transmission passage between the second base station can be set up in the first base station.
After setting up air interface transmission passage, then these data are sent to core net, thus achieve the proper communication between the first base station and core net by the data that the second base station can send from air interface transmission channel reception to the first base station.
In the embodiment of the present invention, the second base station receives the request message of the replacing of the first base station transmission and/or the first frame structure of adjustment the first frame; According to described request message, change and/or adjust described first frame structure; The response message changing and/or adjust described first frame structure is sent to described first base station; Receive the networking request message that described first base station sends, networking response message is sent to described first base station, in order to make the air interface transmission passage between described first base station foundation with described second base station, and utilize the information of the described first frame carrying after described first frame structure of adjustment and described first base station communication.The embodiment of the present invention achieves the proper communication that the first base station realizes between core net by the air interface transmission passage set up between the second base station thus, reduces arrange net cost and operation cost.
Correspondingly, the embodiment of the present invention additionally provides a kind of communicator.A kind of communicator schematic diagram that Fig. 5 provides for the embodiment of the present invention, this embodiment main body is the first base station, and as shown in Figure 5, the present embodiment comprises with lower unit:
Search unit 501, searches for for the base station of the first base station to adjacent area, using the signal quality that searches preferably and/or the lightest base station of load as the second base station.
When transmission link between base station and core net disconnects, the signal quality of base station search adjacent area good, with the base station of core net proper communication, or search for corresponding base station according to the configuration of oneself, and using the signal quality that searches preferably and the lightest base station of/load as the second base station.
Acquiring unit 502, obtaining first frame for carrying with the first carrier carried out communicating in described first base station of described second base station, carrying out parsing obtain the first frame structure to described first frame for described first base station.
Acquiring unit 502 specifically for: the system message of described second base station is monitored in described first base station, from the described system message listened to, extract described first frame.
Adjustment unit 503, for the second frame structure of the second frame that the second carrier wave in described first described first base station of adjustment, base station carries,, there is not the subframe type pair of receiving and dispatching and conflicting with the second frame after making described adjustment with described first frame in described second frame structure after adjustment and described first frame structure adaptation.
Adjustment unit 503 comprises: the first adjustment subelement 508, is adjusted to descending sub frame for the special subframe comprised by described second frame; Second adjustment subelement 509, for according to described first frame structure, by the multiple subframe of described second carrier delay.Adjustment unit 503 also comprises: the 3rd adjustment subelement 510, for judging that described second frame after postponing multiple subframe and described first frame are received and dispatched the subframe type centering of conflicting and whether comprised the subframe of carrying synchronous channel information and broadcast channel information, if do not comprised, then do not send the subframe in the second frame of the subframe type centering of described transmitting-receiving conflict.Adjustment unit 503 also comprises: the 4th adjustment subelement 511, for judging whether described second frame exists the subframe type pair of receiving and dispatching and conflicting with described first frame.
During adjustment unit 503 conducting frame structural adjustment, three kinds of methods can be used, i.e. the method for time migration; Waste some sub-frame of uplink resource and/or some descending sub frame resource; Front two are combined with method.When practical application, because the impact of time migration method on system is minimum, the method that therefore can preferentially offset service time adjusts frame structure, if service time, offset method cannot complete the adaptation of frame structure merely, then can adjust frame structure in conjunction with second method.It should be noted that, the adjustment of frame structure is minimum for Adjustment principle with the impact brought system, and can not slattern in frame and carry important synchronous channel information and the subframe of system broadcast information.
Communication unit 504, the information of the second frame carrying after utilizing adjustment frame structure for described first base station communicates with terminal.
First base station adjusts after the second frame structure makes the first frame structure and the second frame structure adaptation, sends networking request message, in order to set up the air interface transmission passage between described first base station and described second base station to described second base station.
After setting up air interface transmission passage, the carrier wave that the first base station activation is all, and utilize the information of the second frame carrying after adjustment frame structure to communicate with terminal.
After first base station receives the data that terminal sends, use the first frame and described second base station by air interface transmission passage with communicate, the proper communication between terminal and core net can be recovered like this.
Preferably, the embodiment of the present invention also comprises: judging unit 505, judges whether to there is described second frame for described first base station.
Preferably, the embodiment of the present invention also comprises: the first transmitting element 506, for if there is no described second frame, then described first base station sends to described second base station the request message changing and/or adjust described first frame structure, changes and/or described first frame structure to make described second base station.
Receiving element 507, receives for described first base station the response message changed according to described request message the first frame structure and/or adjust in described second base station.
Adjustment unit 503, for according to described response message, adjusts described second frame structure, adaptive with described first frame structure after making described second frame structure after adjustment and adjusting.
In the embodiment of the present invention, the base station of the first base station to adjacent area is searched for, using the signal quality that searches preferably and/or the lightest base station of load as the second base station; Obtaining first frame for carrying with the first carrier carried out communicating in described first base station of described second base station, parsing being carried out to described first frame and obtains the first frame structure; Adjust the second frame structure of the second frame that the second carrier wave in described first base station carries, described second frame structure after adjustment and described first frame structure adaptation; The information of the second frame carrying after described first base station utilizes adjustment frame structure communicates with terminal.The embodiment of the present invention achieves the proper communication that the first base station realizes between core net by the air interface transmission passage set up between the second base station thus
Correspondingly, the embodiment of the present invention additionally provides a kind of communicator.The another communicator schematic diagram that Fig. 6 provides for the embodiment of the present invention, this embodiment main body is the second base station, and as shown in Figure 6, the present embodiment comprises with lower unit:
Receiving element 601, receives the request message of the replacing of the first base station transmission and/or the first frame structure of adjustment the first frame for the second base station.
After first base station disconnects the transmission link with core net, search the second base station for setting up air interface transmission passage, and get the first frame structure that first carrier that the second base station is used for carrying out communicating with the first base station carries, but the first base station cannot be adaptive with the first frame structure by the second frame structure of adjustment first base station, then now can send a request message to the second base station, ask the second base station to be changed and/or adjustment the first frame structure.Thus, the second base station just can receive the request message that the first base station sends.
Adjustment unit 602, for described second base station according to described request message, changes and/or adjusts described first frame structure.
Adjustment unit 602 specifically for: when carrying the indication information changing described first frame structure in described request message, described first frame structure is replaced by described indication information instruction frame structure; Or when carrying the indication information adjusting described first frame structure in described request message, do not send the corresponding subframe in described first frame according to described indication information.
When carrying the indication information changing described first frame structure in request message, described first frame structure can be replaced by the frame structure of described indication information instruction by the second base station.
When carrying the indication information adjusting described first frame structure in request message, the second base station does not send some subframe in the first frame according to indication information, to avoid the first base station, transmitting-receiving conflict occurs.
During the adjustment of the second base station conducting frame structure, the method for time migration need not be considered, only need to consider not send some subframe.
Preferably, when carrying the second frame structure in the request message that the first base station sends, the second base station also can be changed according to the judgement of oneself or adjustment the first frame structure.
Alternatively, the decision that refusal adjusts and/or changes frame structure can also be made in the second base station, and sends refuse information to the first base station, carries described second base station refusal and change and/or adjust the indication information of frame structure in refuse information.
First transmitting element 603, sends to described first base station the response message changing and/or adjust described first frame structure for described second base station.
When the second base station adjustment or after changing frame structure, second base station will send response message to the first base station, carry the frame structure changed or obtain after adjustment in response message, in order to the first base station according to the frame structure after the second base station adjustment, adjust the frame structure of oneself.
First transmitting element 603 also sends for the refuse information of described request message to described first base station for described second base station, carries described second base station refusal and change and/or the indication information of adjustment frame structure in described refuse information.
Communication unit 604, the networking request message of described first base station transmission is received for described second base station, networking response message is sent to described first base station, in order to make the air interface transmission passage between described first base station foundation with described second base station, and utilize the information of the described first frame carrying after described first frame structure of adjustment and described first base station communication.
When the first base station is by adjustment second frame structure, frame structure adaptive after the first frame structure after obtaining and adjusting, the first base station sends networking request message to the second base station, and air interface transmission passage is set up in request and the second base station.Thus, the second base station receives this request message, and after sending response message to the first base station, the air interface transmission passage between the second base station can be set up in the first base station.
After setting up air interface transmission passage, then these data are sent to core net, thus achieve the proper communication between the first base station and core net by the data that the second base station can send from air interface transmission channel reception to the first base station.
Preferably, the embodiment of the present invention also comprises: the second transmitting element 605, sends the response message refusing to change and/or adjust described first frame structure for described second base station to described first base station.
In the embodiment of the present invention, the second base station receives the request message of the replacing of the first base station transmission and/or the first frame structure of adjustment the first frame; According to described request message, change and/or adjust described first frame structure; The response message changing and/or adjust described first frame structure is sent to described first base station; Receive the networking request message that described first base station sends, networking response message is sent to described first base station, in order to make the air interface transmission passage between described first base station foundation with described second base station, and utilize the information of the described first frame carrying after described first frame structure of adjustment and described first base station communication.The embodiment of the present invention achieves the proper communication that the first base station realizes between core net by the air interface transmission passage set up between the second base station thus, reduces arrange net cost and operation cost.
The embodiment of the present invention additionally provides a kind of adjustment System of frame structure, and this system implants the communication means of the embodiment of the present invention, comprises communicator, also comprises terminal.In this system, the base station of the first base station to adjacent area is searched for, using the signal quality that searches preferably and/or the lightest base station of load as the second base station; Obtaining first frame for carrying with the first carrier carried out communicating in described first base station of described second base station, parsing being carried out to described first frame and obtains the first frame structure; Adjust the second frame structure of the second frame that the second carrier wave in described first base station carries, described second frame structure after adjustment and described first frame structure adaptation; The information of the second frame carrying after described first base station utilizes adjustment frame structure communicates with terminal.Second base station receives the request message of the replacing of the first base station transmission and/or the first frame structure of adjustment the first frame; According to described request message, change and/or adjust described first frame structure; The response message changing and/or adjust described first frame structure is sent to described first base station; Receive the networking request message that described first base station sends, networking response message is sent to described first base station, in order to make the air interface transmission passage between described first base station foundation with described second base station, and utilize the information of the described first frame carrying after described first frame structure of adjustment and described first base station communication.The embodiment of the present invention achieves the proper communication that the first base station realizes between core net by the air interface transmission passage set up between the second base station thus, reduces arrange net cost and operation cost.
Professional should recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
The software module that the method described in conjunction with embodiment disclosed herein or the step of algorithm can use hardware, processor to perform, or the combination of the two is implemented.Software module can be placed in the storage medium of other form any known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection range be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. a communication means, is characterized in that, described method comprises:
The base station of the first base station to adjacent area is searched for, using the signal quality that searches preferably and/or the lightest base station of load as the second base station;
Described first base station obtains first frame for carrying with the first carrier carried out communicating in described first base station of described second base station, carries out parsing obtain the first frame structure to described first frame;
Second frame structure of the second frame that the second carrier wave that described first base station adjusts described first base station carries,, there is not the subframe type pair of receiving and dispatching and conflicting with the second frame after making described adjustment with described first frame in described second frame structure after adjustment and described first frame structure adaptation;
The information of the second frame carrying after described first base station utilizes adjustment frame structure communicates with terminal.
2. communication means as claimed in claim 1, is characterized in that, also comprises: described first base station judges whether to there is described second frame before the second frame structure of the second frame that the second carrier wave in described first described first base station of adjustment, base station carries.
3. communication means as claimed in claim 2, it is characterized in that, described second base station also comprises after judging whether existence second frame:
If there is no described second frame, then described first base station sends to described second base station the request message changing and/or adjust described first frame structure, changes to make described second base station and/or adjusts described first frame structure;
Described first base station receives the response message changed according to described request message described first frame structure and/or adjust in described second base station;
Described first base station, according to described response message, adjusts described second frame structure, adaptive with described first frame structure after making described second frame structure after adjustment and adjusting.
4. communication means as claimed in claim 3, is characterized in that, described first base station also comprises after described second base station sends the request message changing and/or adjust the first frame structure:
Described first base station receives the refusal replacing that described second base station sends and/or the response message adjusting described first frame structure;
Described first base station is searched for the base station of adjacent area again.
5. communication means as claimed in claim 1, it is characterized in that, described first base station obtain described second base station for being specially with the first frame that the first carrier carried out communicating in described first base station carries: the system message of described second base station is monitored in described first base station, from the described system message listened to, extract described first frame.
6. communication means as claimed in claim 1, is characterized in that, described first base station described second frame structure of adjustment is specially:
The special subframe that described second frame comprises is adjusted to descending sub frame by described first base station;
Described first base station according to described first frame structure, by the multiple subframe of described second carrier delay.
7. communication means as claimed in claim 6, it is characterized in that, described first base station, according to described first frame structure, also comprises after the multiple subframe of described second carrier delay:
Described first base station judges that described second frame after postponing multiple subframe is received and dispatched the subframe type centering of conflicting with described first frame and whether comprised the subframe of carrying synchronous channel information and broadcast channel information, if do not comprised, then do not send the subframe in the second frame of the subframe type centering of described transmitting-receiving conflict.
8. communication means as claimed in claim 7, it is characterized in that, described first base station judges that described second frame after postponing multiple subframe is received and dispatched before whether the subframe type centering of conflicting comprises the subframe of carrying synchronous channel information and broadcast channel information with described first frame and also comprises: described first base station judges whether described second frame exists the subframe type pair of receiving and dispatching and conflicting with described first frame.
9. a communicator, is characterized in that, described device comprises:
Search unit, searches for for the base station of the first base station to adjacent area, using the signal quality that searches preferably and/or the lightest base station of load as the second base station;
Acquiring unit, obtaining first frame for carrying with the first carrier carried out communicating in described first base station of described second base station, carrying out parsing obtain the first frame structure to described first frame for described first base station;
Adjustment unit, for the second frame structure of the second frame that the second carrier wave in described first described first base station of adjustment, base station carries,, there is not the subframe type pair of receiving and dispatching and conflicting with the second frame after making described adjustment with described first frame in described second frame structure after adjustment and described first frame structure adaptation;
Communication unit, the information of the second frame carrying after utilizing adjustment frame structure for described first base station communicates with terminal.
10. communicator as claimed in claim 9, it is characterized in that, described device also comprises:
Judging unit, judges whether to there is described second frame for described first base station.
11. communicators as claimed in claim 10, it is characterized in that, described device also comprises:
First transmitting element, for if there is no described second frame, then described first base station sends to described second base station the request message changing and/or adjust described first frame structure, changes to make described second base station and/or adjusts described first frame structure;
Receiving element, receives for described first base station the response message changed according to described request message the first frame structure and/or adjust in described second base station;
Described adjustment unit is used for according to described response message, adjusts described second frame structure, adaptive with described first frame structure after making described second frame structure after adjustment and adjusting.
12. communicators as claimed in claim 9, is characterized in that, described acquiring unit specifically for: the system message of described second base station is monitored in described first base station, from the described system message listened to, extract described first frame.
13. communicators as claimed in claim 9, it is characterized in that, described adjustment unit comprises:
First adjustment subelement, is adjusted to descending sub frame for described first base station by the special subframe that described second frame comprises;
Second adjustment subelement, for described first base station according to described first frame structure, by the multiple subframe of described second carrier delay.
14. communicators as claimed in claim 13, it is characterized in that, described adjustment unit also comprises:
3rd adjustment subelement, judge that described second frame after postponing multiple subframe is received and dispatched the subframe type centering of conflicting with described first frame and whether comprised the subframe of carrying synchronous channel information and broadcast channel information for described first base station, if do not comprised, then do not send the subframe in the second frame of the subframe type centering of described transmitting-receiving conflict.
15. communicators as claimed in claim 14, it is characterized in that, described adjustment unit also comprises: for described first base station, the 4th adjustment subelement, judges whether described second frame exists the subframe type pair of receiving and dispatching and conflicting with described first frame.
16. 1 kinds of communication systems, is characterized in that, described system comprises the communicator as described in claim 9-15 any one, and terminal.
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| CN103828481B (en) * | 2013-11-30 | 2018-09-28 | 华为技术有限公司 | Data transmission set, communication system and communication means |
| WO2016041148A1 (en) * | 2014-09-16 | 2016-03-24 | 华为技术有限公司 | Communication method and device |
| RU2679725C1 (en) | 2015-01-22 | 2019-02-12 | Хуавей Текнолоджиз Ко., Лтд | Method and device for indication of transmission frame structure and system |
| CN105873074A (en) * | 2015-01-23 | 2016-08-17 | 中兴通讯股份有限公司 | Adjacent channel inter-system interference coordination method and device |
| CN107493603B (en) * | 2016-06-13 | 2021-03-30 | 华为技术有限公司 | Method for adjusting frame structure, network device, communication apparatus, storage medium, and communication system |
| CN108093445B (en) * | 2016-11-23 | 2020-11-03 | 韩国电子通信研究院 | Wireless unit selecting method and frame setting method |
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