CN104620647A - Communication method and access equipment - Google Patents
Communication method and access equipment Download PDFInfo
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- CN104620647A CN104620647A CN201380001963.7A CN201380001963A CN104620647A CN 104620647 A CN104620647 A CN 104620647A CN 201380001963 A CN201380001963 A CN 201380001963A CN 104620647 A CN104620647 A CN 104620647A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
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Abstract
Provided in the present invention are a communication method and access equipment. The communication method comprises: a first access equipment can perform system frame synchronization with a second access equipment according to the timing information of the second access equipment, and the first access equipment accurately identifies which user equipment sends an uplink signal from the acquired time domain position information of the user equipment.
Description
A kind of communication means and access equipments technique field
The present embodiments relate to communication technical field, and more particularly, to a kind of communication means and access device.Background technology
In a kind of data service shunting scheme of heterogeneous network, the first access device has different standards from the second access device, and user equipment is the user equipment for being currently accessed the second access device.In traffic hotspots region, the first access device may need the user equipment being linked into first access device, to be shunted to the data service on the second access device.First access device can obtain cyclic shift, the resource location of RACH or random access leader sequence of the corresponding sequence of user equipment etc. from the second access device, so as to which the user equipment that may be linked into the first access device be identified, but the first access device can not identify user equipment exactly sometimes using these information.The content of the invention
The embodiment of the present invention provides a kind of communication means and access device, and user equipment can be recognized accurately in heterogeneous network.
The first aspect of the embodiment of the present invention there is provided a kind of communication means, including：
First access device receives the timing information of the second access device broadcast, wherein, the first access device and the second access device have different standards；
First access device carries out system frame synchronization according to above-mentioned timing information with the second access device；First access device obtains the mapping relations of user equipment and system-frame, and the user equipment is the user equipment for being currently accessed the second access device；
First access device recognizes the user equipment according to above-mentioned mapping relations.
Based in a first aspect, in the first possible implementation of first aspect, if the mode of operation of second access device is FDD pattern, the first access device recognizes above-mentioned user equipment according to above-mentioned mapping relations, including：
First access device is switched to working frequency points by the descending frequency of the second access device the up frequency of above-mentioned user equipment, and the user equipment is monitored；
First access device recognizes the user equipment according to above-mentioned mapping relations.
The first possible implementation based on first aspect or first aspect, in second of possible implementation of first aspect, the first access device receives the timing information of the second access device broadcast, including：First access device periodically receives the timing information of the second access device broadcast.
Any one of second of possible implementation based on first aspect or first aspect, the first access device obtains above-mentioned time-domain position information, including：
First access device receives the above-mentioned mapping relations that the second access device is sent.
Any one of second of possible implementation based on first aspect to first aspect, the above method also includes：
First access device judges whether that at least one service bearer is switched in the first access device between the above-mentioned user equipment that can be will identify that and the second access device；
If the first access device judges that at least one service bearer is accessed in first access device between above-mentioned user equipment and the second access device, first access device asks second access device that at least one service bearer between the user equipment and the second access device is switched in the first access device.The second aspect of the embodiment of the present invention provides a kind of first access device, and first access device includes：
Receiving unit, the timing information for receiving the broadcast of the second access device, second access device has different standards from above-mentioned first access device；
Synchronization unit, for according to above-mentioned timing information, system frame synchronization to be carried out with second access device；Acquiring unit, the mapping relations for obtaining user equipment and system-frame, the user equipment is the user equipment for being currently accessed above-mentioned second access device；
Recognition unit, the user equipment is recognized for ^ according to above-mentioned mapping relations.
Based on second aspect, in the first possible implementation of second aspect, if the mode of operation of second access device is FDD pattern, the recognition unit is monitored the user equipment specifically for working frequency points to be switched to the up frequency of above-mentioned user equipment by the descending frequency of above-mentioned second access device；The user equipment is recognized according to above-mentioned mapping relations.
The first possible implementation based on second aspect or second aspect, in the third possible implementation of second aspect, above-mentioned acquiring unit is specifically for receiving the above-mentioned mapping relations that second access device is sent.
Any one of the third possible implementation based on second aspect to second aspect, the first access
Equipment also includes：
Processing unit, is switched in above-mentioned first access device at least one service bearer between the above-mentioned user equipment and above-mentioned second access device that judge whether to will identify that；It is can switch to if it is determined that unit judges go out at least one service bearer between above-mentioned user equipment and above-mentioned second access device in above-mentioned first access device, the processing unit is additionally operable to request above-mentioned second access device and at least one service bearer between the user equipment and above-mentioned second access device is switched in above-mentioned first access device.The third aspect of the embodiment of the present invention includes there is provided a kind of communication means, this method：
Second access device is to the first access device broadcast timing information, and the timing information is used for above-mentioned first access device and carries out system frame synchronization according to above-mentioned timing information and above-mentioned second access device；
Second access device sends the mapping relations of user equipment and system-frame to first access device, and the time-domain position information recognizes the user equipment for first access device according to the mapping relations；
Wherein, above-mentioned first access device has different standards from above-mentioned second access device, and above-mentioned user equipment is the user equipment for being currently accessed above-mentioned second access device.
Based on the third aspect, in the first possible implementation of the third aspect, the above method also includes：When at least one service bearer for judging between the above-mentioned user equipment and above-mentioned second access device that identify in above-mentioned first access device can switch to above-mentioned second access device, above-mentioned second access device receives the solicited message of first access device, and the solicited message is used to ask at least one service bearer between above-mentioned user equipment and above-mentioned second access device being switched to first access device；
Second access device responds above-mentioned solicited message, and at least one service bearer of the user equipment and second access device is switched into above-mentioned first access device.The fourth aspect of the embodiment of the present invention there is provided a kind of second access device, including：
Radio unit, for the first access device broadcast timing information, the timing information to be used for first access device and carries out system frame synchronization according to the timing information and second access device；
Transmitting element, the mapping relations for sending user equipment and system-frame to above-mentioned first access device, above-mentioned mapping relations are used for above-mentioned first access device and recognize above-mentioned user equipment according to the mapping relations；
Wherein, the user equipment is the user equipment for being currently accessed above-mentioned second access device, and above-mentioned first access device has different standards from above-mentioned second access device.
Based on fourth aspect, in the first possible implementation of fourth aspect, second access device
Also include：
Receiving unit, for when above-mentioned first access device judges that at least one service bearer has access to second access device between the above-mentioned user equipment and above-mentioned second access device that identify, the solicited message of first access device is received, the solicited message is used to ask at least one service bearer by above-mentioned user equipment and above-mentioned second access device to be switched in first access device；
Switch unit, for after above-mentioned second access device responds the solicited message, at least one service bearer between above-mentioned user equipment and above-mentioned second access device to be switched into above-mentioned first access device.
Using technical scheme provided in an embodiment of the present invention, first access device is by receiving the timing information that the second access device is broadcasted, first access device and the second access device carry out system frame synchronization so that the first access device has also carried out system frame synchronization with being linked into the user equipment of the second access device.First access device parses the particular user equipment of currently transmitted upward signal according to the user equipment received from the second access device and the mapping relations of system-frame from the mapping relations.Compared with prior art, due to there is higher time precision using the mapping of system-frame and user equipment after system frame synchronization, user equipment can more accurately be identified.Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, cylinder will be made to the required accompanying drawing used in the embodiment of the present invention below singly to introduce, apparently, drawings described below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Figure 1A is a kind of indicative flowchart of the communication means provided according to embodiments of the present invention.
Figure 1B is the schematic diagram of system frame structure in LTE system.
Fig. 2A is a kind of heterogeneous network configuration diagram provided according to embodiments of the present invention.
Fig. 2 B are a kind of indicative flowcharts of the communication means provided according to embodiments of the present invention.
Fig. 3 is a kind of structured flowchart of first access device provided according to embodiments of the present invention.
Fig. 4 is the structured flowchart of another first access device provided according to embodiments of the present invention.Fig. 5 is a kind of structured flowchart of second access device provided according to embodiments of the present invention.
Fig. 6 is the structured flowchart of another second access device provided according to embodiments of the present invention.Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made should all belong to the scope of protection of the invention.
It should be understood that the technical scheme of various embodiments of the present invention can apply to various communication systems, such as：Global system for mobile telecommunications (Global System of Mobile communication, cylinder claims " GSM ") system, CDMA（Code Division Multiple Access, cylinder claims " CDMA ") system, WCDMA（Wideband Code Division Multiple Access, cylinder claims " WCDMA ") system, GPRS（General Packet Radio Service, cylinder claims " GPRS "), Long Term Evolution (Long Term Evolution, cylinder claims " LTE ") system, LTE FDDs (Frequency Division
Duplex, cylinder claims " FDD ") system, LTE time division duplexs（Time Division Duplex, cylinder claims " TDD "), UMTS (Universal Mobile Telecommunication System, cylinder claims " UMTS ") etc..
User equipment（User Equipment, UE) it is also referred to as mobile terminal（Mobile Terminal, MT), mobile subscriber equipment etc., can be through wireless access network（For example, Radio Access Network,
RAN) communicated with one or more core nets, user equipment can be mobile terminal, such as mobile phone（Or be " honeycomb " phone）With the computer with mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device.
Base station, can be the base station in GSM or CDMA（Base Transceiver Station, BTS), can also be the base station in WCDMA（NodeB), the eNB or e-NodeB in LTE are can also be, or, WLAN（Wireless Local Area Network, WLAN) access point（Access
Point, AP), the present invention is not limited.Include the first access device and the second access device with different systems.In typical heterogeneous network, the signal cover of the first access device is in the signal cover of the second access device, and the first access device can be deployed in signal covering hole area or the traffic hotspots region of the second access device.Due to the deployment of the first access device, whole communication system can provide business service for more user equipmenies, so as to improve the handling capacity of whole communication system.In each embodiment of the invention, different systems can include following any two kinds of combination：GSM standards, CDMA standards, WCDMA standards, GPRS standards, LTE standards, UMTS standards and WLAN standards.It will be understood by those skilled in the art that the technical scheme that each embodiment of the invention is used is not limited to above-mentioned typical heterogeneous network, can appoint
The communication network that there is two kinds of meaning the access device of different systems to be constituted is workable.
In above-mentioned heterogeneous network, cyclic shift, the resource location of RACH or the random access leader sequence of the first access device by obtaining sequence from the second access device etc., user equipment to be identified.But during user equipment is identified using these information, not the problem of not considering time precision between the first access device and the second access device, during user equipment is recognized, usually user equipment can not be identified exactly.Figure 1A is a kind of indicative flowchart for communication means that on the one hand embodiment of the present invention provides, and this method is used in the first access device and the second communication system of the access with different systems, and as shown in Figure 1A, this method includes herein below.
101, first access device receives the timing information that the second access device is broadcasted using the descending frequency of the second access device, and system frame synchronization is carried out according to timing information and the second access device, to cause the first access device in the case where carrying out system frame synchronization with the second access device, to monitor user equipment.
Alternatively, the timing information can be the time corresponding to the frame number of second access device each system-frame, that is, the time corresponding to each system-frame.So as to which, the first access device is obtaining the time corresponding to the second access device each system-frame, carry out synchronous with the second access device system-frame, the first access device can go monitoring users equipment in the time corresponding to the second access device system-frame.
102, the first access device obtains the time-domain position information of user equipment, and the wherein user equipment is the user equipment for being currently accessed the second access device.
103, the first access device recognizes user equipment according to the time-domain position information of user equipment.
Optionally, above-mentioned time-domain position information includes the mapping relations of above-mentioned user equipment and system-frame.For example, user equipment, which can take whole system frame, carries out transmitting uplink data.Second access device can notify that the mapping relations of the first access device user equipment and system-frame are, UE1 carries out transmitting uplink data in system-frame 1, and UE2 carries out transmitting uplink data in system-frame 2.Due in 101, system frame synchronization has been carried out in first access device and the second access device, first access device can be monitored user equipment respectively to the time corresponding to the time corresponding to system-frame 1 and system-frame 2, thus the first access device can be listened to according to the mapping relations in system-frame 1 carries out the user equipment of transmitting uplink data for UE1, and listened in system-frame 2 carry out transmitting uplink data user equipment be UE2, so as to identify UE1 and UE2.
Further, the mapping relations of the user equipment and system-frame can be specifically user equipment and each
The mapping relations of subframe in system-frame.As an example, Figure 1B is LTE system frame structure schematic diagram, and a system-frame is 10 milliseconds（Ms) ,-individual system-frame includes 10 subframes, and this 10 subframes have 10 fixed numbers, respectively #0, #1, #2, #3, #4, #5, #6, #7, #8 and #9.In LTE systems, user equipment is carried out data transmission in time domain by subframe.When the second access device is LTE standards, the first access device the mapping relations of subframe can identify which user equipment the user equipment of monitoring is in the user equipment with the second access device system frame synchronization and by acquisition and each system-frame.For example, the second access device can notify that the system-frame of the first access device and the mapping relations of user equipment are：In system-frame 5, UE0 sends upstream data using subframe #0, and UE1 sends upstream data using subframe #3；In system-frame 6, UE2 sends upstream data using subframe #0, and UE3 sends upstream data using subframe #1.Because the first access device and the second access device by timing information have carried out system frame synchronization, first access device can be monitored user equipment respectively in the time corresponding to the time corresponding to system-frame 5 and system-frame 6, and, first access device can be according to the system-frame and the mapping relations of user equipment, identify that the user equipment that upward signal is sent on the subframe #0 of system-frame 5 is UE0, the user equipment that upward signal is sent on the subframe #3 of system-frame 5 is UE1, the user equipment that upward signal is sent on the subframe #0 of system-frame 6 is UE2, sent on the subframe #1 of system-frame 6 upstream data for UE3.
Further, technical scheme provided in an embodiment of the present invention, after system frame synchronization is carried out, in the method accurately identified according to the time-domain position information of user equipment to user equipment in time domain, the user equipment identified may remain as multiple, that is, the multiple user equipmenies identified may be occupied, the system-frame of identical time-domain position, i.e., one has corresponded to multiple user equipmenies or a subframe of a system-frame has corresponded to multiple user equipmenies.In the case where needing that multiple user equipmenies that this is identified further are identified, first access device also further can further pick out each in the above-mentioned multiple user equipmenies identified according to the frequency domain position information of user equipment, for example, according to user equipment and subband（One subband is made up of at least one Physical Resource Block）Corresponding relation further pick out user equipment.It is used as an example, it is assumed that the user equipment for taking the subframe #0 of system-frame 5 includes UE1 and UE2;The user equipment for taking the subframe #1 of system-frame 6 includes UE3 and UE4.Second access device can further notify the corresponding relation of the first access device user equipment and subband：UE1 takes subband 1, and UE2 takes subband 2;UE3 takes subband 3 and UE4 takes subband 4.First access device can be carried out after system frame synchronization according to timing information, according to time-domain position information and frequency domain position information, the user equipment of use subband 1 in the monitored user equipment of identification on the subframe #0 of system-frame 5 is UE1, the user equipment that subband 2 is used on the subframe #0 of system-frame 5 is to be used on UE2, the subframe #1 of system-frame 6
The user equipment of subband 3 is that the user equipment of subband 4 is used on UE3, the subframe #1 of system-frame 6 for UE4.
In embodiments of the present invention, second access device broadcast timing information, the timing information can be read from broadcast channel by accessing the user equipment of the second access device, so that the synchronization of the system-frame of user equipment and the second access device is carried out, so that the user equipment system-frame synchronous with the use of the second access device carries out business transmission.Because the first access device and the second access device have different standards, one uplink receiver with the second access device with identical standard can be set on the first access device, the uplink receiver can use the descending frequency of the second access device to receive the timing information of the second access device broadcast, so as to carry out the synchronous of the system-frame between the first access device and the second access device, to cause the first access device to go monitoring users equipment in the time corresponding to system-frame.Because system-frame is synchronous between the second access device and user equipment, thus, the system-frame between the first access device and user equipment is also synchronous.In the case of the system frame synchronization of the first access device and the second access device, first access device obtains the mapping relations of user equipment and system-frame, and the upward signal of user equipment is monitored, and according to user equipment and the mapping relations of system-frame, it is that the user equipment for sending the upward signal is identified in system-frame for which user equipment.
Alternatively, in the mode of operation FDD of the second access device（Frequency Division Duplex, FDD), the first access device identifies user equipment according to the time-domain position information of user equipment, including：First access device is switched to working frequency points by the descending frequency of the second access device the up frequency of user equipment, and user equipment is monitored；During monitoring user equipment, the first access device recognizes user equipment according to the time-domain position information of user equipment.Due in the fdd mode, the up frequency of user equipment and the descending frequency of the second access device are different, and the first access device, which can be used, to be arranged on uplink receiver on the first access device, having identical standard with the second access device user equipment is monitored.During monitoring user equipment, the uplink receiver can be transformed into the up frequency using user equipment from the descending frequency using the second access device, so as to realize the monitoring to user equipment.Because before monitoring user equipment, the system-frame between the first access device and user equipment is synchronous, thus the first access device can identify user equipment according to the mapping relations of user equipment and system-frame.
Alternatively, in step 101, the first access device periodically receives the timing information that the second access device is broadcasted using the descending frequency of the second access device, and carries out system frame synchronization according to timing information and the second access device.
Alternatively, the first access device obtains the time-domain position information of user equipment, can include：First
Access device receives the time-domain position information of the user equipment of the second access device broadcast, or, the time-domain position information for the user equipment that the first access device is sent by X2 mouthfuls or the access device of privately owned interface second.
Alternatively, before the first access device receives timing information from the second access device, first access device can receive the running parameter that the second access device is sent by eating dishes without rice or wine, and the running parameter is used for the first access device and is configured to realize the timing information that can receive the broadcast of the second access device and user equipment is carried out the interaction such as to monitor.The running parameter can include：The cell identifier of second access device（Physical Cell Identifier, PCI), bandwidth of cell, physical hybrid automatic repeat request indicator channel（Physical Hybrid ARQ Indicator Channel, PHICH) configuration information, number of antennas, cyclic prefix（Cyclic Prefix, CP) length, random access code and time slot, working form and working frequency points etc..Wherein, the PCI of the second access device, bandwidth of cell, PHICH configuration informations, mode of operation and working frequency points are used for the first access device by eating dishes without rice or wine from the second access device receive information（The timing information of such as the second access device broadcast）, random access code and time slot, mode of operation and working frequency points are used for the first access device and receive the upward signal that user equipment is sent.The running parameter can also include timing information, so that the first access device just carries out the synchronous of system-frame in time in initial configuration with the second access device.Or, if the running parameter does not include timing information, then first access device can be synchronized with the second access device after being configured according to the running parameter, and to carry out the synchronous of system-frame with the second access device, then user equipment is monitored again.First access device just carries out system frame synchronization in initial configuration with the second access device, and such first access device can determine user equipment according to the time-domain position information of user equipment.
In the embodiment of the present invention, the second access device can be macro base station, and the first access device can be micro- in the macro base station service range（Micro) base station, slightly (Pico) base station or WLAN AP etc..The mode of operation of first access device is identical with second access device, if i.e. the mode of operation of the second access device is FDD, then the mode of operation of the first access device is also FDD, if the mode of operation of the second access device is TDD, the mode of operation of the first access device is also TDD.
Further, the above method can also include：First access device judges whether the user equipment identified can be linked into first access device；And when the first access device judges that the user equipment identified can be entered in first access device, the user equipment that will identify that is linked into the first access device, so as to be shunted to the second access device.Optionally, first access device to the first access device path loss can judge whether the first access device can be linked into according to the user equipment identified, if for example, the path loss of the user equipment identified to first access device is less than the thresholding specified
When, at least one service bearer is switched to the first access device between then asking the user equipment and second access device that the second access device will identify that, and at least one service bearer between user equipment and the second access device is switched in the first access device after the second access device responds the request, to be shunted to the second access device.
Using technical scheme provided in an embodiment of the present invention, first access device is by receiving the timing information that the second access device is broadcasted, first access device and the second access device carry out system frame synchronization so that the first access device has also carried out system frame synchronization with being linked into the user equipment of the second access device.First access device identifies the particular user equipment of currently transmitted upward signal according to the user equipment time-domain position information received from the second access device from the time-domain position information.Compared with prior art, because the time-domain position information using user equipment after system frame synchronization user equipment is identified with higher time precision, user equipment can more accurately be identified.Fig. 2A is a kind of heterogeneous network configuration diagram provided in an embodiment of the present invention, in the heterogeneous network network, first access device is the WLAN AP using WLAN standards, second access device is macro base station, WLAN AP and macro base station have different standards, and the standard that user equipment can use this different is linked into WLAN AP or macro base station.In the heterogeneous network, macro base station is the base station that user equipment is currently accessed, and business service is provided by macro base station.When user equipment is moved in WLAN AP signal cover, if the heavier loads of macro base station, the service bearer of at least one between user equipment and macro base station can be switched in the WLAN AP, so as to shunt the data service in macro base station.It is used as an example, in order that obtaining macro base station and user equipment in the case where not changing standard, WLAN AP can receive the signal that macro base station or user equipment are sent, the uplink receiver for having identical standard with macro base station can be installed on WLAN AP, the uplink receiver is used to receive the signal of macro base station transmission or receives the signal that user equipment is sent.
Based on the system architecture diagram of the heterogeneous network shown in Fig. 2A, Fig. 2 B are a kind of indicative flowcharts for communication means that on the one hand embodiment of the present invention provides, and can be performed in this method by WLAN AP.
200, WLAN AP receive the timing information that macro base station is broadcasted using the descending frequency of macro base station, and according to the timing information, system frame synchronization is carried out with the second access device.
WLAN AP with macro base station when carrying out system frame synchronization, WLAN AP pass through the uplink receiver with macro base station with identical standard installed in the WLAN AP, the timing information of macro base station broadcast is received, so that WLAN AP can use the timing information monitoring users equipment.Optionally, the timing information can with the time corresponding to the frame number of each system-frame, that is, corresponding to each system-frame when
Between.It will be understood by those skilled in the art that WLAN is in the case where obtaining the timing information, the system frame synchronization with macro base station can be carried out by timing information.It is also carry out system frame synchronization between WLAN AP and the user equipment for providing service by macro base station in the case where WLAN AP and macro base station have carried out system frame synchronization.In other words, it is carry out system frame synchronization between user equipment, WLAN AP and macro base station three.In the case where WLAN AP and macro base station have carried out system frame synchronization, WLAN AP just can be by being interacted with macro base station by X2 mouthfuls or privately owned interface, get the time-domain position information of the user equipment of macro base station transmission, wherein the time-domain position information can be the mapping relations of user equipment and system-frame, specifically, the mapping relations can be user equipment and the mapping relations of subframe in system-frame.
Specifically, it is generally the case that in the case where macro base station provides service for user equipment, it is the time-domain position information of in store user equipment in normal data service, macro base station between guarantee macro base station and user equipment.WLAN AP can obtain time-domain position information by following several possible implementations from macro base station：WLAN AP can send the request message of the time-domain position information for asking user equipment to macro base station, so that macro base station sends the time-domain position information of user equipment in the case where receiving the request message to the first access device.Or, time-domain position information directly can be broadcast to WLAN AP by macro base station.
Alternatively, as one embodiment, macro base station can periodically perform with the WLAN AP processes for carrying out system frame synchronization.WLAN AP can be at regular intervals just from listening mode（User equipment is monitored）Be converted to synchronous mode（Timing information is received from macro base station, the system frame synchronization with macro base station is carried out）, and listening mode is switched back into again after being synchronized with macro base station.WLAN AP are periodically switched to synchronous mode from listening mode, can carry out with the second access device that system-frame is constantly synchronous in time, so that WLAN AP can determine user equipment according to the time-domain position information area of user equipment.
Optionally, as another embodiment, the process that the WLAN AP carry out system frame synchronization with macro base station can be carried out in the case of it is determined that needing to synchronize.For example, the quantity of user equipment and the total ratio of user equipment monitored the need for WLAN AP, which are not listened to, needs the user equipment monitored, or the WLAN AP are not listened to are more than predetermined threshold value（I.e. loss is too high), then WLAN AP may determine that can with macro base station carry out system frame synchronization after monitored again.User equipment can again be synchronized in the case where needing to synchronize, synchronous with the second access device system-frame in time to carry out.The interruption monitored caused by being synchronized due to WLAN AP with macro base station user equipment can so be reduced.
Optionally, as another embodiment, the WLAN AP carry out system frame synchronizing process with macro base station and can also be the execution when WLAN AP carry out initial configuration.When WLAN carries out initial configuration, WLAN AP can receive the running parameter that macro base station is broadcasted by eating dishes without rice or wine, and WLAN AP are configured to receive the message such as the timing information that macro base station is broadcasted from eating dishes without rice or wine according to the running parameter and user equipment is monitored.The running parameter includes PCI, bandwidth of cell, PHICH configuration informations, number of antennas CP length, random access code and time slot, working form and working frequency points of macro base station etc., and the wherein PCI of macro base station, bandwidth of cell, PHICH configuration informations, mode of operation and working frequency points are used for WLAN AP by eating dishes without rice or wine from macro base station receive information（Such as timing information of macro base station broadcast), random access code and time slot, mode of operation and working frequency points are used for WLAN AP and receive the upward signal that user equipment is sent.The running parameter can also include timing information, so that WLAN AP carry out the synchronous of system-frame in time in initial configuration with macro base station.Or, if the running parameter does not include timing information, then the WLAN AP can be synchronized with the second access device after being configured according to the running parameter, and to carry out system frame synchronization with the second access device, then user equipment is monitored.Because WLAN AP carry out system frame synchronization in initial configuration with the second access device, such first access device just can determine user equipment according to the time-domain position information of user equipment.
It is understood that any two kinds in above-mentioned three kinds of situations can be combined with each other, or three kinds of situations in combination with.For example, WLAN AP can in initial configuration with macro base station carry out system frame synchronization, can also in the case where needing carry out system frame synchronization with macro base station carry out system frame synchronization.For another example, WLAN AP are in the case where periodicity and macro base station carry out system frame synchronization, with macro base station can also carry out system frame synchronization in the case where needing carry out system frame synchronization.And for example, WLAN AP can carry out system frame synchronization in initial configuration with macro base station, and acceptable periodicity and macro base station carry out system frame synchronization, and carry out system frame synchronization with macro base station in the case where needing carry out system frame synchronization.
201, WLAN AP obtain the time-domain position information of user equipment.Optionally, the time-domain position information includes the mapping relations of user equipment and system-frame, specifically, and the mapping relations can be user equipment and the mapping relations of subframe in system-frame.
Alternatively, WLAN AP can also receive the time-domain position information that macro base station is broadcasted by X2 mouthfuls or privately owned interface from macro base station reception time-domain position information by eating dishes without rice or wine.
202, WLAN AP are monitored user equipment.
Optionally, in the case where the mode of operation of macro base station is FDD, before monitoring user equipment, the WLAN AP can be switched to working frequency points by the descending frequency of macro base station the up frequency of user equipment, to monitor user equipment.
It will be understood by those skilled in the art that 201 and 202 have no time sequencing relation.
203, WLAN AP are during monitoring user equipment, and WLAN AP are according to the time-domain position information of user equipment, and which user equipment determines user equipment is specially.
In the case where user equipment, WLAN AP and macro base station carry out system frame synchronization, WLAN AP can determine to send the user equipment of the upward signal according to the time-domain position of the upward signal listened to.Specifically, it is also identical in the System Frame Number of same time three when user equipment, macro base station and WLAN AP threes carry out system frame synchronization.In the case, if WLAN AP listen to the upward signal of some user equipment transmission in time t, then the WLAN AP can determine to correspond to time t system-frame and according to system-frame and the mapping relations of user equipment, identify using which user equipment the user equipment of the system-frame is specially.
Further, WLAN AP can calculate the receiving power corresponding to the upward signal according to the upward signal for identifying user equipment, and receive from macro base station the information of the transmission power of upward signal for indicating the user equipment identified.Whether WLAN AP can calculate the user equipment to the path loss of the WLAN AP according to the receiving power and the transmission power, and judge the user equipment in the coverage of the WLAN AP according to the path loss.If the user equipment is in the coverage of the WLAN AP, it can then ask macro base station that at least one service bearer of the user equipment is switched in WLAN AP, and after macro base station responds the request, at least one service bearer between the user equipment and the macro base station is switched in the WLAN AP, so as to realize the shunting of service traffics.
The present embodiment is only so that in LTE system, the first access device is WLAN AP, and the second access device is exemplified by macro base station, the present embodiment is not restricted to this：WLAN AP could alternatively be the NodeB in the BTS in gsm system or cdma system, WCDMA system etc. it is various can have service distributing function access node；Macro base station can be eNB or e-NodeB in LTE system, can also be the BTS in GSM or CDMA, or the NodeB in WCDMA etc..
Using technical scheme provided in an embodiment of the present invention, first access device is by receiving the timing information that the second access device is broadcasted, first access device and the second access device carry out system frame synchronization so that the first access device has also carried out system frame synchronization with being linked into the user equipment of the second access device.First access device identifies the particular user equipment of currently transmitted upward signal according to the user equipment time-domain position information received from the second access device from the time-domain position information.Compared with prior art, because the time-domain position information using user equipment after system frame synchronization user equipment is identified with higher time precision, user equipment can more accurately be identified.
Fig. 3 is the structured flowchart of the first access device provided according to embodiments of the present invention.The first access device 300 shown in Fig. 3 can perform each step that WLAN AP are performed in the first access device in Figure 1A illustrated embodiments or Fig. 2 B illustrated embodiments, and for the concept and process in embodiment of the method, the present embodiment is repeated no more.First access device 300 includes：Receiving unit 301, synchronization unit 302, acquiring unit 303 and recognition unit 304.
Receiving unit 301, the timing information that the second access device is broadcasted is received for the descending frequency using the second access device, and second access device has different standards from the first access device 300.
Synchronization unit 302, for according to the timing information, system frame synchronization to be carried out with second access device.
Acquiring unit 303, in the case of carrying out system frame synchronization in the first access device and the second access device, obtain the time-domain position information of user equipment, the user equipment is the user equipment for being currently accessed the second access device, and the time-domain position information can be the user equipment and the mapping relations of system-frame.
Recognition unit 304, for recognizing above-mentioned user equipment according to the time-domain position information of user equipment.The first access device 300 shown in Fig. 3 can be by obtaining the timing information of second access device, so as to carry out system frame synchronization with the second access device.In this case, system frame synchronization has been carried out between the user equipment, the access device three of access device 300 and second.Access device 300 can obtain the time-domain position information of user equipment, and identify user equipment according to the time-domain position information of the user equipment.
Optionally, it is used as one embodiment, in the case where the mode of operation of second access device is FDD, recognition unit 304, up frequency specifically for working frequency points to be switched to user equipment by the descending frequency of second access device, to monitor the user equipment；And in the snoop procedure to the user equipment, the user equipment is recognized according to the time-domain position information of the user equipment.
Optionally, acquiring unit 303, time-domain position information specifically for receiving the user equipment sent from the second access device, the time-domain position information includes the mapping relations of user equipment and system-frame, specifically, the mapping relations can be with the mapping relations of the subframe in user equipment and system-frame.
Optionally, receiving unit 301, specifically can be used for the timing information for periodically receiving second access device broadcast.Because receiving unit 301 periodically receives the timing information of the second access device broadcast, the timing information that synchronization unit 302 can be periodically received according to receiving unit 301 carries out system frame synchronization with the second access device.
Optionally, receiving unit 301, situation about synchronizing can be specifically needed in network, the timing information that the second access device is sent is received.For example, not listened in recognition unit 304 needs to be supervised
The user equipment listened, or the loss of recognition unit 304 are too high, then receive timing information in receiving unit 301, and are carried out by synchronization unit 302 after system frame synchronization, and recognition unit 304 is monitored user equipment again.
Optionally, receiving unit 301, are additionally operable to, when the first access device 300 carries out initial configuration, receive the timing information of second access device broadcast.Specifically, in the first 300 initial configuration of access device, receiving unit 301 can also receive the running parameter of the second access device broadcast.Running parameter includes PCI, bandwidth of cell, PHICH configuration informations, number of antennas, CP length, random access code and time slot, working form and working frequency points of the second access device etc..Wherein, the PCI of the second access device, bandwidth of cell, PHICH configuration informations, mode of operation and working frequency points are used for receiving unit 301 by eating dishes without rice or wine from the second access device receive information（The timing information of such as the second access device broadcast）；Random access code and time slot, mode of operation and working frequency points are used for receiving unit 301 and receive the upward signal that user equipment is sent.The running parameter can also include timing information, so that the first access device 300 just carries out system frame synchronization in time in initial configuration with the second access device.Or, if the running parameter does not include timing information, then the first access device 300 can after being configured according to the running parameter with the second access device carry out system frame synchronization, so as to the second access device carry out time synchronized, then user equipment is monitored again.First access device 300 just carries out system frame synchronization in initial configuration with the second access device, and such first access device just can determine user equipment according to the time-domain position information of user equipment.
Further, the first access device 300 can also include processing unit 305, judge whether that at least one service bearer is switched in first access device between the user equipment and second access device that can will identify that；If the judging unit judges that at least one service bearer is accessed in first access device between the user equipment and second access device, the processing unit is additionally operable to request second access device, and by the user equipment, at least one service bearer is switched in first access device.Specifically, processing unit 305 is used to calculate the receiving power corresponding to the upward signal according to the upward signal of the user equipment.Receiving unit 301, can be also used for receiving the transmission power of the upward signal of the user equipment from second access device.Processing unit 305, it can be also used for calculating the user equipment to the path loss of first access device according to the receiving power and the transmit power, and judged whether according to the path loss at least one service bearer between the user equipment and the second access device can be switched in the first access device 300.If processing unit 305 is judged at least one service bearer between user equipment and the second access device can be switched in the first access device 300 according to the path loss of user equipment to the first access device 300, processing unit 305 can ask the second access to set
It is standby that at least one service bearer between the user equipment and the second access device is switched in first access device, and after the second access device responds the request, at least one service bearer of user equipment and the second access device is switched in the first access device 300, so as to be achieved in that the shunting of service traffics on the second access device.
Using technical scheme provided in an embodiment of the present invention, first access device 300 is by receiving the timing information that the second access device is broadcasted, first access device 300 and the second access device carry out system frame synchronization so that the first access device 300 has also carried out system frame synchronization with being linked into the user equipment of the second access device.First access device 300 identifies the particular user equipment of currently transmitted upward signal according to the user equipment time-domain position information received from the second access device from the time-domain position information.Compared with prior art, because the time-domain position information using user equipment after system frame synchronization user equipment is identified with higher time precision, user equipment can more accurately be identified.The structured flowchart for another first access device 400 that on the one hand Fig. 4 provides for the embodiment of the present invention.The first access device 400 shown in Fig. 4 can perform each step that WLAN AP are performed in the first access device in Figure 1A illustrated embodiments or Fig. 2 B illustrated embodiments, and for the concept and process in embodiment of the method, the present embodiment is repeated no more.First access device 400 includes：Receiver 401, processor 402, and for connecting the bus 403 of receiver 401 and processor 402.
Receiver 401, the timing information that the second access device is broadcasted is received for the descending frequency using the second access device, wherein the second access device has different standards from the first access device 400.
Processor 402, for the timing information received according to receiver 401, makes the first access device
400 and second access device carry out system frame synchronization；And in the case where the first access device 400 and the second access device carry out system frame synchronization, the time-domain position information of user equipment is obtained, the user equipment is the user equipment for being currently accessed the second access device；Processor 402 is additionally operable to recognize user equipment according to the time-domain position information of user equipment.Alternatively, the time-domain position information of user equipment can include the mapping relations of user equipment and system-frame, specifically, and the mapping relations can also be user equipment and the mapping relations of subframe in system-frame.
Alternatively, in the case where the mode of operation of the second access device is FDD, processor 402 is during user equipment is recognized, working frequency points can be switched to the up frequency of user equipment by the descending frequency of the second access device, user equipment is monitored, and in the snoop procedure to user equipment, the user equipment is recognized according to the time-domain position information of user equipment.
Alternatively, receiver 401, specifically can be used for periodically receiving the broadcast of the second access device
Timing information.Receiver 401 can also receive the timing information that the second access device is sent when network needs to synchronize.For example, processor unit 402, which is not listened to, needs the user equipment monitored, or the loss of processor 402 is too high, then receiver 401 can receive timing information, and carried out by processor 402 after system frame synchronization, then user equipment is monitored by processor 402.
Alternatively, receiver 401, available for when the first access device 400 carries out initial configuration, receive the timing information of the second access device broadcast.For example, when the first access device 400 carries out initial configuration, receiver 401 can receive the running parameter of the second access device broadcast.The running parameter includes PCI, bandwidth of cell, PHICH configuration informations, number of antennas, CP length, random access code and time slot, working form and working frequency points of the second access device etc..Wherein, the PCI of the second access device, bandwidth of cell, PHICH configuration informations, mode of operation and working frequency points are used for receiver 401 by eating dishes without rice or wine from the second access device receive information（The timing information of such as the second access device broadcast）；Random access code and time slot, mode of operation and working frequency points are used for receiver 401 and receive the upward signal that user equipment is sent.The running parameter can also include timing information, so that the first access device 400 just carries out system frame synchronization in time in initial configuration with the second access device.Or, if the running parameter does not include timing information, then the first access device 400 can after being configured according to the running parameter with the second access device carry out system frame synchronization, so as to the second access device carry out time synchronized, then user equipment is monitored again.First access device 400 just carries out system frame synchronization in initial configuration with the second access device, and such first access device just can determine user equipment according to the time-domain position information of user equipment.
Using technical scheme provided in an embodiment of the present invention, first access device 400 is by receiving the timing information that the second access device is broadcasted, first access device 400 and the second access device carry out system frame synchronization so that the first access device 400 has also carried out system frame synchronization with being linked into the user equipment of the second access device.First access device 400 identifies the particular user equipment of currently transmitted upward signal according to the user equipment time-domain position information received from the second access device from the time-domain position information.Compared with prior art, because the time-domain position information using user equipment after system frame synchronization user equipment is identified with higher time precision, user equipment can more accurately be identified.Fig. 5 is a kind of structured flowchart of second access device 500 provided in an embodiment of the present invention.Second access device can perform the action of macro base station in embodiment of the method shown in the second access device in embodiment of the method shown in Figure 1A or Fig. 2 B, and for the concept and process described in embodiment of the method, the present embodiment is repeated no more.Second access device 500, including：Radio unit 501 and transmitting element 502.
Radio unit 501, for the first access device broadcast timing information, the timing information to be used for first access device and carries out system frame synchronization according to the timing information and second access device 500；
Transmitting element 502, time-domain position information for sending from user equipment to first access device, the time-domain position information is used for first access device and recognizes the user equipment according to the time-domain position information, and the time-domain position information is the mapping relations of the user equipment and system-frame；
Wherein, the user equipment is the user equipment for being currently accessed second access device, and first access device has different standard from second access device
Second access device 500, can also include：Receiving unit 503 and switch unit 504.Receiving unit 503, when at least one service bearer of the user equipment for judging to identify in first access device can switch to second access device 500, the solicited message of first access device is received, the solicited message is used to ask the user equipment being switched in first access device；
Switch unit 504, for after second access device 500 responds the solicited message, at least one service bearer of the user equipment to be switched into first access device.
Using technical scheme provided in an embodiment of the present invention, first access device is by receiving the timing information that the second access device broadcasts 500, first access device and the second access device 500 carry out system frame synchronization so that the first access device has also carried out system frame synchronization with being linked into the user equipment of the second access device 500.First access device identifies the particular user equipment of currently transmitted upward signal according to the user equipment time-domain position information received from the second access device 500 from the time-domain position information.Compared with prior art, because the time-domain position information using user equipment after system frame synchronization user equipment is identified with higher time precision, user equipment can more accurately be identified.Fig. 6 is the structured flowchart of another second access device 600 provided in an embodiment of the present invention.Second access device 600 can perform the action of macro base station in embodiment of the method shown in the second access device in embodiment of the method shown in Figure 1A or Fig. 2 B, and for the concept and process described in embodiment of the method, the present embodiment is repeated no more.Second access device 600 includes：Transmitter 601 and receiver 602.Transmitter 601 and receiver 602 can be linked together by system bus.
Transmitter 601, for the first access device broadcast timing information, the timing information to be used for the first access device and carries out system frame synchronization according to the timing information and second access device.Transmitter 602 is additionally operable to send the time-domain position information of user equipment, the time-domain position information to the first access device
User equipment is identified according to the time-domain position for the first access device.Alternatively, the time-domain position information can be user equipment and the mapping relations of system-frame, and specifically, the mapping relations can be user equipment and the mapping relations of subframe in system-frame.
User equipment in the embodiment of the present invention is the user equipment for being currently accessed the second access device 600, and the first access device has different standards from the second access device.
Receiver 601, when at least one service bearer of user equipment for judging to identify in the first access device can switch to the second access device, the solicited message of the first access device is received, the solicited message is used to ask at least one service bearer between user equipment and the second access device being switched in the first access device.
Second access device 600, in addition to：Processor 603, the processor 603 is linked together by system bus with receiver 601 and receiver 602.The processor 603 is used for after the second access device 600 responds the solicited message that receiver 601 is received, and at least one service bearer between user equipment and the second access device 600 is switched in the first access device.
Using technical scheme provided in an embodiment of the present invention, first access device is by receiving the timing information that the second access device broadcasts 600, first access device and the second access device 600 carry out system frame synchronization so that the first access device has also carried out system frame synchronization with being linked into the user equipment of the second access device 600.First access device identifies the particular user equipment of currently transmitted upward signal according to the user equipment time-domain position information received from the second access device 600 from the time-domain position information.Compared with prior art, because the time-domain position information using user equipment after system frame synchronization user equipment is identified with higher time precision, user equipment can more accurately be identified.Those of ordinary skill in the art are it is to be appreciated that the unit and algorithm steps of each example described with reference to the embodiments described herein, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel can realize described function to each specific application using distinct methods, but this realization is it is not considered that beyond the scope of this invention.
It is apparent to those skilled in the art that, the specific work process of the system of foregoing description, device and unit clean for the convenience and cylinder of description may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can realize by another way（For example can be by the uplink receiver on the first access device
Realize）.For example, device embodiment described above is only schematical, for example, the division of the unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, it, by some interfaces, the INDIRECT COUPLING or communication connection of device or unit, can be electrical, machine is just guarded against or others form that shown or discussed coupling or direct-coupling or communication connection each other, which can be,.
The unit illustrated as separating component can be or may not be physically separate, and the part shown as unit can be or may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each of the invention embodiment can be integrated in a processing unit or unit is individually physically present, can also two or more units it is integrated in a unit.
If the function is realized using in the form of SFU software functional unit and as independent production marketing or in use, can be stored in a computer read/write memory medium.Understood based on such, the part or the part of the technical scheme that technical scheme substantially contributes to prior art in other words can be embodied in the form of software product, the computer software product is stored in a storage medium, including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Or processor（Processor all or part of step of each embodiment methods described of the invention) is performed.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), random access memory（RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
It is described above; only embodiment of the invention; but protection scope of the present invention is not limited thereto; any one skilled in the art the invention discloses technical scope in; the change or replacement that can be readily occurred in; it should all be included within the scope of the present invention, therefore protection scope of the present invention should be defined by scope of the claims.
Claims (1)
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| PCT/CN2013/080332 WO2015013863A1 (en) | 2013-07-29 | 2013-07-29 | Communication method and access equipment |
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| US10904063B2 (en) | 2016-08-11 | 2021-01-26 | Huawei Technologies Co., Ltd. | Downlink signal sending method, downlink signal receiving method, transmit end device, and receive end device |
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| CN114827910B (en) * | 2022-06-27 | 2022-11-22 | 南京大鱼半导体有限公司 | Broadcast communication method, broadcast communication device and terminal equipment |
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| CN101237277A (en) * | 2007-01-30 | 2008-08-06 | 展讯通信（上海）有限公司 | Realization method of TV broadcasting system based on TD-SCDMA |
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| CN104620647B (en) | 2018-07-03 |
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