CN103581919A - Frequency selection method, user equipment and base station - Google Patents

Frequency selection method, user equipment and base station Download PDF

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Publication number
CN103581919A
CN103581919A CN201210273224.0A CN201210273224A CN103581919A CN 103581919 A CN103581919 A CN 103581919A CN 201210273224 A CN201210273224 A CN 201210273224A CN 103581919 A CN103581919 A CN 103581919A
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China
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described
frequency
downstream
signal intensity
receiving signal
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CN201210273224.0A
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Chinese (zh)
Inventor
冯淑兰
刘劲楠
周晗
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华为技术有限公司
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Priority to CN201210273224.0A priority Critical patent/CN103581919A/en
Publication of CN103581919A publication Critical patent/CN103581919A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/20Selecting an access point

Abstract

The invention discloses a frequency selection method, user equipment and base station. The method includes the steps that the downlink received signal strength of at least two downlink frequencies of one or more cells is detected; a second user communication frequency based on the downlink received signal strength of the two downlink frequencies is obtained, the second user communication frequency is an uplink frequency corresponding to the downlink frequency which has the lowest downlink received signal strength or the largest downlink path loss of the two downlink frequencies, and second user communication represents other communication performed on a share authorized user frequency band. According to the frequency selection method, user equipment and base station, the uplink frequency corresponding to the downlink frequency which has the lowest downlink receiving signal strength or the largest downlink path loss of the two downlink frequencies is determined to be the second user communication frequency, interference on cell communication by the second user communication can be relieved, and therefore the quality of the second user communication and the cell communication can be ensured.

Description

Method, subscriber equipment and base station that frequency is selected

Technical field

The present invention relates to the communications field, and more specifically, relate to method, subscriber equipment and base station that frequency is selected.

Background technology

In traditional cellular network, the data of two terminal communications need to forward through base station, from terminal 1, issue the communication data of terminal 2, first need first by terminal 1, to issue base station, base station is the switch to core net by Packet Generation, switch is by the serving BS of data back terminal 2, and the data of terminal 1 being issued to terminal 2 by the serving BS of terminal 2 are issued terminal 2.If two communication terminals are distant, this scheme is more feasible; If but communicating pair close together in the other side's communication range, if packet is directly issued terminal 2 by terminal 1, without base station forwarding, can be saved the resource of half mutually.

Direct communication between terminal and terminal (be called for short D2D and communicate by letter, Device to Device, device-to-device) can make direct communication between terminal equipment and without any need for middle infrastructure.Therefore, the direct communication of terminal equipment can more high efficiencyly utilize frequency spectrum resource, improves Cellular Networks capacity, reduces the expense of base station control signal, is that an energy brings the technology of huge interests to cellular network communication.

The same with any radio communication, communicating by letter between terminal and terminal needs certain wireless frequency spectrum carrying.In the frequency spectrum share mode of a kind of D2D and cellular communication, D2D communication terminal uses the upstream frequency of serving BS, part or all upstream frequency of serving BS is used in D2D communication by the mode of time-division or frequency division, or the in the situation that of interference base station uplink receiving not, share all or part of upstream frequency with cellular communication.For example, the upstream frequency of base station BS 1 is f 1_u, terminal D _ UE1 and D_UE2 are linked into BS1, and have set up D_UE1 and communicated by letter with the D2D between D_UE2, and D_UE1 communicates by letter with D2D between D+UE2 and shares upstream frequency f with the cellular communication of BS1 1_u.Because D2D communicates by letter in serving BS coverage, or approach very much the coverage of serving BS, the interference between D2D communication and serving BS cellular communication is larger.

Summary of the invention

Method, subscriber equipment and base station that the embodiment of the present invention provides a kind of frequency to select, can reduce the interference of D2D communication to cell communication.

First aspect, a kind of method that provides frequency to select, comprising: the down receiving signal intensity that detects at least two downstream frequencys of one or more communities; Obtain the second telex network frequency that the down receiving signal intensity based on these at least two downstream frequencys is determined, this the second telex network frequency is the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these at least two downstream frequencys, and this second telex network represents to share other communication that authorized user frequency range is carried out.

In the possible implementation of the first, obtain the second telex network frequency that the down receiving signal intensity based on these at least two downstream frequencys is determined, specific implementation is: the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum in these at least two downstream frequencys is defined as to this second telex network frequency.

In the possible implementation of the second, in conjunction with the possible implementation of the first of first aspect, the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum in these at least two downstream frequencys is defined as to this second telex network frequency, specific implementation is: if the corresponding Yi Ge community only of the first frequency in these at least two downstream frequencys, the down receiving signal intensity using the down receiving signal intensity of community corresponding to this first frequency as this first frequency; If the corresponding a plurality of communities of the second frequency in these at least two downstream frequencys, the down receiving signal intensity using the maximum in the down receiving signal intensity of a plurality of communities corresponding to this second frequency as this second frequency, or, down receiving signal intensity using the down receiving signal intensity sum of a plurality of communities corresponding to this second frequency as this second frequency, or, the down receiving signal intensity using the mean value of the down receiving signal intensity of a plurality of communities corresponding to this second frequency as this second frequency; If the 3rd frequency in these at least two downstream frequencys does not detect any community, the down receiving signal intensity of the 3rd frequency is set to minimum; Using upstream frequency corresponding to the downstream frequency of down receiving signal intensity minimum in these at least two downstream frequencys as this second telex network frequency.

In the third possible implementation, obtain the second telex network frequency that the down receiving signal intensity based on these at least two downstream frequencys is determined, specific implementation is: according to the down receiving signal intensity of these at least two downstream frequencys, determine the downlink path loss of these at least two downstream frequencys; The upstream frequency corresponding to downstream frequency of downlink path loss maximum in these at least two downstream frequencys is defined as to this second telex network frequency.

In the 4th kind of possible implementation, the third possible implementation in conjunction with first aspect, the upstream frequency corresponding to downstream frequency of downlink path loss maximum in these at least two downstream frequencys is defined as to this second telex network frequency, specific implementation is: if the corresponding Yi Ge community only of the first frequency in these at least two downstream frequencys, the downlink path loss using the downlink path loss of community corresponding to this first frequency as this first frequency; If the corresponding a plurality of communities of the second frequency in these at least two downstream frequencys, the downlink path loss using the minimum value in the downlink path loss of a plurality of communities corresponding to this second frequency as this second frequency, or, the downlink path loss using the mean value of the downlink path loss of a plurality of communities corresponding to this second frequency as this second frequency; If the 3rd frequency in these at least two downstream frequencys does not detect any community, the downlink path loss of the 3rd frequency is set to maximum; Using upstream frequency corresponding to the downstream frequency of downlink path loss maximum in these at least two downstream frequencys as this second telex network frequency.

In the 5th kind of possible implementation, in conjunction with the third or the 4th kind of possible implementation of first aspect, the method also comprises: the transmit signal strength of obtaining these one or more communities from network side; According to the down receiving signal intensity of these at least two downstream frequencys, determine the downlink path loss of these at least two downstream frequencys, specific implementation is: according to the down receiving signal intensity of the transmit signal strength of these one or more communities and these at least two downstream frequencys, determine the downlink path loss of these at least two downstream frequencys.

In the 6th kind of possible implementation, in conjunction with the first of first aspect or first aspect or the second or the third or the 4th kind or the 5th kind of possible implementation, the method also comprises: from network side, obtain the list of these one or more communities and the list of these at least two downstream frequencys.

In the 7th kind of possible implementation, in conjunction with the first of first aspect or first aspect or the second or the third or the 4th kind or the 5th kind or the 6th kind of possible implementation, this second telex network is D2D communication; The method also comprises: this second telex network frequency is sent to base station, so that this base station sends to this second telex network frequency other subscriber equipmenies of this D2D communication.

In the 8th kind of possible implementation, in conjunction with the 7th kind of possible implementation of first aspect, the method also comprises: select the frame timing of Serving cell as the timing base of this D2D communication.

In the 9th kind of possible implementation, before the second telex network frequency of determining in the down receiving signal intensity of obtaining based on these at least two downstream frequencys, the method also comprises: the down receiving signal intensity that sends these at least two downstream frequencys to base station; Obtain the second telex network frequency that the down receiving signal intensity based on these at least two downstream frequencys is determined, specific implementation is: receive this second telex network frequency that this base station sends, wherein, this second telex network frequency is that this base station is according to the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these definite at least two downstream frequencys of the down receiving signal intensity of these at least two downstream frequencys.

In the tenth kind of possible implementation, in conjunction with the 9th kind of possible implementation of first aspect, this second telex network is D2D communication; This second telex network frequency is that this base station is according to the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these definite at least two downstream frequencys of the down receiving signal intensity of these at least two downstream frequencys of this D2D communicating pair transmission.

Second aspect, a kind of method that provides frequency to select, comprising: the down receiving signal intensity of at least two downstream frequencys of one or more communities that reception subscriber equipment sends; According to the down receiving signal intensity of these at least two downstream frequencys, determine the second telex network frequency, this the second telex network frequency is the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these at least two downstream frequencys, and this second telex network represents to share other communication that authorized user frequency range is carried out; This second telex network frequency is sent to this subscriber equipment.

In the possible implementation of the first, according to the down receiving signal intensity of these at least two downstream frequencys, determine the second telex network frequency, specific implementation is: the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum in these at least two downstream frequencys is defined as to this second telex network frequency.

In the possible implementation of the second, according to the down receiving signal intensity of these at least two downstream frequencys, determine the second telex network frequency, specific implementation is: according to the down receiving signal intensity of these at least two downstream frequencys, determine the downlink path loss of these at least two downstream frequencys; The upstream frequency corresponding to downstream frequency of downlink path loss maximum in these at least two downstream frequencys is defined as to this second telex network frequency.

In the third possible implementation, in conjunction with the possible implementation of the second of second aspect, the method also comprises: the transmit signal strength of obtaining these one or more communities; According to the down receiving signal intensity of these at least two downstream frequencys, determine the downlink path loss of these at least two downstream frequencys, specific implementation is: according to the down receiving signal intensity of the transmit signal strength of these one or more communities and these at least two downstream frequencys, determine the downlink path loss of these at least two downstream frequencys.

In the 4th kind of possible implementation, in conjunction with the first or the second or the third possible implementation of second aspect or second aspect, this second telex network is D2D communication; According to the down receiving signal intensity of these at least two downstream frequencys, determine the second telex network frequency, specific implementation is: the down receiving signal intensity of these at least two downstream frequencys that send according to this D2D communicating pair, determine this second telex network frequency.

The third aspect, provides a kind of subscriber equipment, comprising: receiver module, for detection of the down receiving signal intensity of at least two downstream frequencys of one or more communities; Acquisition module, the second telex network frequency of determining for the down receiving signal intensity of obtaining based on these at least two downstream frequencys, this the second telex network frequency is the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these at least two downstream frequencys, and this second telex network represents to share other communication that authorized user frequency range is carried out.

In the possible implementation of the first, this acquisition module comprises: the first acquiring unit, and for the upstream frequency corresponding to downstream frequency of these at least two downstream frequency down receiving signal intensity minimums is defined as to this second telex network frequency.

In the possible implementation of the second, in conjunction with the possible implementation of the first of the third aspect, this first acquiring unit also for, if the first frequency in these at least two downstream frequencys is corresponding Yi Ge community only, the down receiving signal intensity using the down receiving signal intensity of community corresponding to this first frequency as this first frequency; If the corresponding a plurality of communities of the second frequency in these at least two downstream frequencys, the down receiving signal intensity using the maximum in the down receiving signal intensity of a plurality of communities corresponding to this second frequency as this second frequency, or, down receiving signal intensity using the down receiving signal intensity sum of a plurality of communities corresponding to this second frequency as this second frequency, or, the down receiving signal intensity using the mean value of the down receiving signal intensity of a plurality of communities corresponding to this second frequency as this second frequency; If the 3rd frequency in these at least two downstream frequencys does not detect any community, the down receiving signal intensity of the 3rd frequency is set to minimum; Using upstream frequency corresponding to the downstream frequency of down receiving signal intensity minimum in these at least two downstream frequencys as this second telex network frequency.

In the third possible implementation, this acquisition module comprises: second acquisition unit, for according to the down receiving signal intensity of these at least two downstream frequencys, determine the downlink path loss of these at least two downstream frequencys; The upstream frequency corresponding to downstream frequency of downlink path loss maximum in these at least two downstream frequencys is defined as to this second telex network frequency.

In the 4th kind of possible implementation, the third possible implementation in conjunction with the third aspect, this second acquisition unit also for, if the first frequency in these at least two downstream frequencys is corresponding Yi Ge community only, the downlink path loss using the downlink path loss of community corresponding to this first frequency as this first frequency; If the corresponding a plurality of communities of the second frequency in these at least two downstream frequencys, the downlink path loss using the minimum value in the downlink path loss of a plurality of communities corresponding to this second frequency as this second frequency, or, the downlink path loss using the mean value of the downlink path loss of a plurality of communities corresponding to this second frequency as this second frequency; If the 3rd frequency in these at least two downstream frequencys does not detect any community, the downlink path loss of the 3rd frequency is set to maximum; Using upstream frequency corresponding to the downstream frequency of downlink path loss maximum in these at least two downstream frequencys as this second telex network frequency.

In the 5th kind of possible implementation, in conjunction with the third or the 4th kind of possible implementation of the third aspect, this receiver module is also for obtaining the transmit signal strength of these one or more communities from network side; This second acquisition unit also for, according to the down receiving signal intensity of the transmit signal strength of these one or more communities and these at least two downstream frequencys, determine the downlink path loss of these at least two downstream frequencys.

In the 6th kind of possible implementation, in conjunction with the first of the third aspect or the third aspect or the second or the third or the 4th kind or the 5th kind of possible implementation, this receiver module is also for obtaining the list of these one or more communities and the list of these at least two downstream frequencys from network side.

In the 7th kind of possible implementation, in conjunction with the first of the third aspect or the third aspect or the second or the third or the 4th kind or the 5th kind or the 6th kind of possible implementation, this second telex network is D2D communication; This subscriber equipment also comprises: the first sending module, and for this second telex network frequency is sent to base station, so that this base station sends to this second telex network frequency other subscriber equipmenies of this D2D communication.

In the 8th kind of possible implementation, in conjunction with the 7th kind of possible implementation of the third aspect, this subscriber equipment also comprises: timing determination module, and for the timing base of selecting the frame of Serving cell regularly to communicate by letter as this D2D.

In the 9th kind of possible implementation, this subscriber equipment also comprises: the second sending module, for send the down receiving signal intensity of these at least two downstream frequencys to base station; This second telex network frequency that this receiver module also sends for receiving this base station, wherein, this second telex network frequency is that this base station is according to the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these definite at least two downstream frequencys of the down receiving signal intensity of these at least two downstream frequencys; This acquisition module comprises: the 3rd acquiring unit, this second telex network frequency sending for obtaining this base station of this receiver module reception.

In the tenth kind of possible implementation, in conjunction with the 9th kind of possible implementation of the third aspect, this second telex network is D2D communication; This second telex network frequency is that this base station is according to the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these definite at least two downstream frequencys of the down receiving signal intensity of these at least two downstream frequencys of this D2D communicating pair transmission.

Fourth aspect, provides a kind of base station, comprising: receiver module, for receiving the down receiving signal intensity of at least two downstream frequencys of one or more communities that subscriber equipment sends; Determination module, be used for according to the down receiving signal intensity of these at least two downstream frequencys, determine the second telex network frequency, this the second telex network frequency is the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these at least two downstream frequencys, and this second telex network represents to share other communication that authorized user frequency range is carried out; Sending module, for sending to this subscriber equipment by this second telex network frequency.

In the possible implementation of the first, this determination module comprises: the first determining unit, and for the upstream frequency corresponding to downstream frequency of these at least two downstream frequency down receiving signal intensity minimums is defined as to this second telex network frequency.

In the possible implementation of the second, this determination module comprises: the second determining unit, for according to the down receiving signal intensity of these at least two downstream frequencys, determine the downlink path loss of these at least two downstream frequencys; The upstream frequency corresponding to downstream frequency of downlink path loss maximum in these at least two downstream frequencys is defined as to this second telex network frequency.

In the third possible implementation, in conjunction with the possible implementation of the second of fourth aspect, this base station also comprises: acquisition module, for obtaining the transmit signal strength of these one or more communities; This second determining unit also, for according to the down receiving signal intensity of the transmit signal strength of these one or more communities and these at least two downstream frequencys, is determined the downlink path loss of these at least two downstream frequencys.

In the 4th kind of possible implementation, in conjunction with the first or the second or the third possible implementation of fourth aspect or fourth aspect, this second telex network is D2D communication; This determination module also, for according to the down receiving signal intensity of these at least two downstream frequencys of this D2D communicating pair transmission, is determined this second telex network frequency.

Based on technique scheme, method, subscriber equipment and base station that the frequency of the embodiment of the present invention is selected, by the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum at least two downstream frequencys or downlink path loss maximum is defined as to the second telex network frequency, the interference of the second telex network to cell communication can be reduced, thereby the quality of the second telex network and cell communication can be guaranteed.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, to the accompanying drawing of required use in the embodiment of the present invention be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is according to the indicative flowchart of the method for the frequency selection of the embodiment of the present invention.

Fig. 2 is according to another indicative flowchart of the method for the frequency selection of the embodiment of the present invention.

Fig. 3 is according to an indicative flowchart again of the method for the frequency selection of the embodiment of the present invention.

Fig. 4 is according to an indicative flowchart again of the method for the frequency selection of the embodiment of the present invention.

Fig. 5 is according to the schematic diagram of the embodiment of the present invention scene.

Fig. 6 is the indicative flowchart of the method that frequency is selected according to another embodiment of the present invention.

Fig. 7 is according to the schematic block diagram of the subscriber equipment of the embodiment of the present invention.

Fig. 8 is according to the schematic block diagram of the acquisition module of the embodiment of the present invention.

Fig. 9 is another schematic block diagram according to the subscriber equipment of the embodiment of the present invention.

Figure 10 is according to the schematic block diagram of the base station of the embodiment of the present invention.

Figure 11 is the schematic block diagram of subscriber equipment according to another embodiment of the present invention.

Figure 12 is the schematic block diagram of base station according to another embodiment 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, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, should belong to the scope of protection of the invention.

Should understand, the technical scheme of the embodiment of the present invention can be applied to various communication systems, for example: global system for mobile telecommunications (Global System of Mobile communication, referred to as " GSM ") system, code division multiple access (Code Division Multiple Access, referred to as " CDMA ") system, Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, referred to as " WCDMA ") system, GPRS (General Packet Radio Service, referred to as " GPRS "), Long Term Evolution (Long Term Evolution, referred to as " LTE ") system, LTE Frequency Division Duplexing (FDD) (FrequencyDivision Duplex, referred to as " FDD ") system, LTE time division duplex (Time Division Duplex, referred to as " TDD "), universal mobile telecommunications system (Universal Mobile Telecommunication

System, referred to as " UMTS "), global interconnected inserting of microwave (Worldwide Interoperability forMicrowave Access, referred to as " WiMAX ") communication system etc.

Will also be understood that, in embodiments of the present invention, subscriber equipment (User Equipment, referred to as " UE ") can be referred to as terminal (Terminal), travelling carriage (Mobile Station, referred to as " MS "), mobile terminal (Mobile Terminal) etc., this subscriber equipment can be through wireless access network (Radio AccessNetwork, referred to as " RAN ") communicate with one or more core net, for example, subscriber equipment can be mobile phone (or being called " honeycomb " phone), there is the computer of mobile terminal etc., for example, subscriber equipment can also be portable, pocket, hand-hold type, built-in computer or vehicle-mounted mobile device, they and wireless access network switched voice and/or data.

In embodiments of the present invention, base station can be base station (the BaseTransceiver Station in GSM or CDMA, referred to as " BTS "), also can be the base station (NodeB in WCDMA, referred to as " NB "), can also be the evolved base station (Evolutional Node B, referred to as " ENB or e-NodeB ") in LTE, the present invention limit.But for convenience of description, following embodiment will be take base station ENB and user equipment (UE) and be described as example.

Fig. 1 shows the indicative flowchart of the method 100 of selecting according to the frequency of the embodiment of the present invention.The method 100 is carried out by UE.As shown in Figure 1, the method 100 comprises:

S110, detects the down receiving signal intensity of at least two downstream frequencys of one or more communities;

S120, obtain the second telex network frequency that the down receiving signal intensity based on these at least two downstream frequencys is determined, this the second telex network frequency is the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these at least two downstream frequencys, and this second telex network represents to share other communication that authorized user frequency range is carried out.

In embodiments of the present invention, the second telex network represents to share other communication that authorized user frequency range is carried out, and can be the direct communication between equipment, as D2D communication, can be also other communications, as broadcast communication, and access communications etc.In order to reduce the interference of the second telex network to cell communication, UE detects the down receiving signal intensity of at least two downstream frequencys of one or more communities, these at least two downstream frequencys can Wei Yige community a plurality of downstream frequencys, also can be a plurality of downstream frequencys of a plurality of communities, alternatively, UE can obtain the list of these one or more communities and the list of these at least two downstream frequencys from network side, then UE obtains the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum in these at least two downstream frequencys or downlink path loss maximum, with this upstream frequency, carry out the second telex network.The down receiving signal intensity minimum of cell downlink frequency or downlink path loss maximum show that the interference strength of community on this downstream frequency and between UE is minimum, therefore, select upstream frequency that this downstream frequency is corresponding to carry out the second telex network as the second telex network frequency smaller to the interference meeting of cell communication.

Therefore, the method that the frequency of the embodiment of the present invention is selected, by the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum at least two downstream frequencys or downlink path loss maximum is defined as to the second telex network frequency, the interference of the second telex network to cell communication can be reduced, thereby the quality of the second telex network and cell communication can be guaranteed.

In embodiments of the present invention, as shown in Figure 2, alternatively, S120 comprises:

S121, is defined as this second telex network frequency by the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum in these at least two downstream frequencys.

UE is according to the down receiving signal intensity of these at least two downstream frequencys that detect, and selects upstream frequency that the downstream frequency of down receiving signal intensity minimum is corresponding as the second telex network frequency.

For example, the downstream signal that UE detects the cellular cell of a plurality of frequencies arrives the signal strength signal intensity of UE, suppose detection downstream frequency f 1_d, f 2_d, f 3_dthe signal strength signal intensity that arrives UE is respectively R1, R2, R3; UE selects down receiving signal intensity to indicate as interference strength, and UE selects the corresponding upstream frequency of downstream frequency that arrives UE signal strength signal intensity minimum as D2D communication frequency.Suppose R1>R2>R3, terminal is selected f 3_dcorresponding upstream frequency f 3_uas D2D communication frequency.

Alternatively, S121 comprises:

If the first frequency in these at least two downstream frequencys is corresponding Yi Ge community only, the down receiving signal intensity using the down receiving signal intensity of community corresponding to this first frequency as this first frequency;

If the corresponding a plurality of communities of the second frequency in these at least two downstream frequencys, the down receiving signal intensity using the maximum in the down receiving signal intensity of a plurality of communities corresponding to this second frequency as this second frequency, or, down receiving signal intensity using the down receiving signal intensity sum of a plurality of communities corresponding to this second frequency as this second frequency, or, the down receiving signal intensity using the mean value of the down receiving signal intensity of a plurality of communities corresponding to this second frequency as this second frequency;

If the 3rd frequency in these at least two downstream frequencys does not detect any community, the down receiving signal intensity of the 3rd frequency is set to minimum;

Using upstream frequency corresponding to the downstream frequency of down receiving signal intensity minimum in these at least two downstream frequencys as this second telex network frequency.

Particularly, UE can detect a plurality of communities that each downstream frequency is corresponding.If the frequency (representing with first frequency) in these at least two downstream frequencys is corresponding Yi Ge community only, on this first frequency, Yi Ge community only detected, the down receiving signal intensity using the down receiving signal intensity of community corresponding to this first frequency as this first frequency.If the corresponding a plurality of communities of a frequency (representing with second frequency) in these at least two downstream frequencys, on this second frequency, a plurality of communities detected, the down receiving signal intensity using the mean value of the down receiving signal intensity of the down receiving signal intensity sum of the maximum in the down receiving signal intensity of a plurality of communities corresponding to this second frequency or a plurality of communities corresponding to this second frequency or a plurality of communities corresponding to this second frequency as this second frequency, that is to say, select the mean value of the down receiving signal intensity of a plurality of communities that the down receiving signal intensity sum of a plurality of communities that maximum in the down receiving signal intensity of a plurality of communities that this second frequency is corresponding or this second frequency are corresponding or this second frequency are corresponding to indicate as interference strength.If a frequency in these at least two downstream frequencys (with the 3rd frequency representation) does not detect any community, the down receiving signal intensity of the 3rd frequency is set to minimum, can think that the interference strength of the 3rd frequency is minimum.Then, UE selects the downstream frequency of down receiving signal intensity minimum again from these at least two downstream frequencys, using its corresponding upstream frequency as the second telex network frequency.

Like this, the method that the frequency of the embodiment of the present invention is selected, by the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum at least two downstream frequencys is defined as to the second telex network frequency, the interference of the second telex network to cell communication can be reduced, thereby the quality of the second telex network and cell communication can be guaranteed.

In embodiments of the present invention, as shown in Figure 3, alternatively, S120 comprises:

S122, according to the down receiving signal intensity of these at least two downstream frequencys, determines the downlink path loss of these at least two downstream frequencys;

S123, is defined as this second telex network frequency by the upstream frequency corresponding to downstream frequency of downlink path loss maximum in these at least two downstream frequencys.

That is to say, UE selects downlink path loss to indicate as interference strength.UE first, according to the down receiving signal intensity of these at least two downstream frequencys that detect, determines the downlink path loss of these at least two downstream frequencys, then selects upstream frequency that the downstream frequency of downlink path loss maximum is corresponding as the second telex network frequency.

Alternatively, the method 100 also comprises:

From network side, obtain the transmit signal strength of these one or more communities;

S122 comprises:

According to the down receiving signal intensity of the transmit signal strength of these one or more communities and these at least two downstream frequencys, determine the downlink path loss of these at least two downstream frequencys.

When selecting downlink path loss to indicate as interference strength, UE obtains the transmit signal strength of community to be measured from network side, according to the transmit signal strength of community and down receiving signal intensity, calculates downlink path loss.For example, downlink path loss can deduct down receiving signal intensity for transmit signal strength.

Alternatively, S123 comprises:

If the first frequency in these at least two downstream frequencys is corresponding Yi Ge community only, the downlink path loss using the downlink path loss of community corresponding to this first frequency as this first frequency;

If the corresponding a plurality of communities of the second frequency in these at least two downstream frequencys, the downlink path loss using the minimum value in the downlink path loss of a plurality of communities corresponding to this second frequency as this second frequency, or, the downlink path loss using the mean value of the downlink path loss of a plurality of communities corresponding to this second frequency as this second frequency;

If the 3rd frequency in these at least two downstream frequencys does not detect any community, the downlink path loss of the 3rd frequency is set to maximum;

Using upstream frequency corresponding to the downstream frequency of downlink path loss maximum in these at least two downstream frequencys as this second telex network frequency.

Particularly, UE can detect a plurality of communities that each downstream frequency is corresponding.If the frequency (representing with first frequency) in these at least two downstream frequencys is corresponding Yi Ge community only, on this first frequency, Yi Ge community only detected, the downlink path loss using the downlink path loss of community corresponding to this first frequency as this first frequency.If the corresponding a plurality of communities of a frequency (representing with second frequency) in these at least two downstream frequencys, on this second frequency, a plurality of communities detected, the downlink path loss using the mean value of the downlink path loss of the minimum value in the downlink path loss of a plurality of communities corresponding to this second frequency or a plurality of communities corresponding to this second frequency as this second frequency, that is to say, select the mean value of the downlink path loss of a plurality of communities that minimum value in the downlink path loss of a plurality of communities that this second frequency is corresponding or this second frequency are corresponding to indicate as interference strength.If a frequency in these at least two downstream frequencys (with the 3rd frequency representation) does not detect any community, the downlink path loss of the 3rd frequency is set to maximum, can think that the interference strength of the 3rd frequency is minimum.Then, UE selects the downstream frequency of downlink path loss maximum again from these at least two downstream frequencys, using its corresponding upstream frequency as the second telex network frequency.

Like this, the method that the frequency of the embodiment of the present invention is selected, by the upstream frequency corresponding to downstream frequency of downlink path loss maximum at least two downstream frequencys is defined as to the second telex network frequency, the interference of the second telex network to cell communication can be reduced, thereby the quality of the second telex network and cell communication can be guaranteed.

Alternatively, when UE will carry out D2D communication, when i.e. this second telex network is D2D communication, UE can also send to base station by this second telex network frequency (being now D2D communication frequency), so that this base station sends to this second telex network frequency other subscriber equipmenies of this D2D communication.That is to say, UE can report Serving cell by the D2D communication frequency of selection, and Serving cell can be further by one or more UE of the selected D2D communication frequency notice of UE D2D communication centering.

Alternatively, UE can select the timing base that the frame of Serving cell is regularly communicated by letter as D2D.For example, no matter whether UE selects the upstream frequency of serving BS as D2D communication frequency, the timing base that UE selects the frame of Serving cell regularly to communicate by letter as D2D.

In embodiments of the present invention, except UE oneself selects the second telex network frequency, UE can also be by base station selected the second telex network frequency.Therefore, as shown in Figure 4, alternatively, before S120, the method 100 also comprises:

S130, sends the down receiving signal intensity of these at least two downstream frequencys to base station;

S120 comprises:

S124, receive this second telex network frequency that this base station sends, wherein, this second telex network frequency is that this base station is according to the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these definite at least two downstream frequencys of the down receiving signal intensity of these at least two downstream frequencys.

Particularly, UE is by the down receiving signal strength reporting base station of these at least two downstream frequencys that detect.The second telex network frequency is determined according to the down receiving signal intensity of these at least two downstream frequencys in base station.Alternatively, base station can be using upstream frequency corresponding to the downstream frequency of down receiving signal intensity minimum in these at least two downstream frequencys as the second telex network frequency, or, downlink path loss is first calculated according to the down receiving signal intensity of these at least two downstream frequencys in base station, then using upstream frequency corresponding to the downstream frequency of downlink path loss maximum in these at least two downstream frequencys as the second telex network frequency.Then base station is again by the second telex network frequency notice UE determining.

Alternatively, when UE will carry out D2D communication, when i.e. this second telex network is D2D communication, this second telex network frequency is that this base station is according to the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these definite at least two downstream frequencys of the down receiving signal intensity of these at least two downstream frequencys of this D2D communicating pair transmission.Particularly, now the testing result that D2D communicating pair sends can be received in base station.Base station is according to the testing result of D2D communicating pair, and the down receiving signal intensity of these at least two downstream frequencys that send according to D2D communicating pair is determined the second telex network frequency (being now D2D communication frequency).The testing result that D2D communicating pair sends may be different, now the little frequency of integrated interference intensity is selected according to the testing result of D2D communicating pair in base station, and the down receiving signal intensity of these at least two downstream frequencys that send according to D2D communicating pair determines that the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum in these at least two downstream frequencys or downlink path loss maximum is the second telex network frequency.

For example, in the scene shown in Fig. 5, downstream frequency f 1_d, f 2_d, f 3_dthe signal strength signal intensity of incoming terminal is expressed as R1, R2, R3.Suppose that the signal strength signal intensity that D_UE1 detects is R1>R3>R2, the signal strength signal intensity that D_UE2 detects is R1>R2>R3, and the D2D communication frequency that the D2D that Serving cell is D_UE1 and D_UE2 according to both sides' testing result communicates by letter definite is f 3_ualthough this frequency is not the frequency of interference strength minimum for D_UE1, be the frequency that interference strength is less, for D_UE1 and D_UE2, be the frequency of integrated interference intensity minimum.

Therefore, the method that the frequency of the embodiment of the present invention is selected, by the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum at least two downstream frequencys or downlink path loss maximum is defined as to the second telex network frequency, the interference of the second telex network to cell communication can be reduced, thereby the quality of the second telex network and cell communication can be guaranteed.

Above, in conjunction with Fig. 1 to Fig. 5, from the angle of UE, describe the method that frequency is selected in detail, below in conjunction with Fig. 6, from the angle of base station, describe the method that frequency is selected.

Fig. 6 shows the indicative flowchart of the method 200 that frequency is selected according to another embodiment of the present invention.The method 200 is carried out by base station.As shown in Figure 6, the method 200 comprises:

S210, the down receiving signal intensity of at least two downstream frequencys of one or more communities that reception subscriber equipment sends;

S220, according to the down receiving signal intensity of these at least two downstream frequencys, determine the second telex network frequency, this the second telex network frequency is the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these at least two downstream frequencys, and this second telex network represents to share other communication that authorized user frequency range is carried out;

S230, sends to this subscriber equipment by this second telex network frequency.

In order to reduce the interference of the second telex network to cell communication, the down receiving signal intensity of at least two downstream frequencys that base station sends according to subscriber equipment, the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum in these at least two downstream frequencys or downlink path loss maximum is defined as to the second telex network frequency, and notifies to subscriber equipment to carry out the second telex network.

Therefore, the method that the frequency of the embodiment of the present invention is selected, by base station, the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum at least two downstream frequencys or downlink path loss maximum is defined as to the second telex network frequency, the interference of the second telex network to cell communication can be reduced, thereby the quality of the second telex network and cell communication can be guaranteed.

Alternatively, S220 comprises:

The upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum in these at least two downstream frequencys is defined as to this second telex network frequency.

The down receiving signal intensity of these at least two downstream frequencys that base station sends according to UE, selects upstream frequency that the downstream frequency of down receiving signal intensity minimum is corresponding as the second telex network frequency.

Alternatively, S220 comprises:

According to the down receiving signal intensity of these at least two downstream frequencys, determine the downlink path loss of these at least two downstream frequencys;

The upstream frequency corresponding to downstream frequency of downlink path loss maximum in these at least two downstream frequencys is defined as to this second telex network frequency.

That is to say, base station selected downlink path loss is indicated as interference strength.The down receiving signal intensity of these at least two downstream frequencys that base station first sends according to UE, determine the downlink path loss of these at least two downstream frequencys, then select upstream frequency that the downstream frequency of downlink path loss maximum is corresponding as the second telex network frequency.

Alternatively, base station obtains the transmit signal strength of these one or more communities;

According to the down receiving signal intensity of the transmit signal strength of these one or more communities and these at least two downstream frequencys, determine the downlink path loss of these at least two downstream frequencys.

When selecting downlink path loss to indicate as interference strength, base station receives the down receiving signal intensity of these at least two downstream frequencys of UE transmission, obtain the transmit signal strength of community to be measured, according to the transmit signal strength of community and down receiving signal intensity, calculate downlink path loss.

Alternatively, when this second telex network is D2D communication, S220 comprises:

The down receiving signal intensity of these at least two downstream frequencys that send according to this D2D communicating pair, determines this second telex network frequency.

Particularly, during D2D communication, the testing result that D2D communicating pair sends can be received in base station.Base station is according to the testing result of D2D communicating pair, and the down receiving signal intensity of these at least two downstream frequencys that send according to D2D communicating pair is determined the second telex network frequency (being now D2D communication frequency).The testing result that D2D communicating pair sends may be different, now the little frequency of integrated interference intensity is selected according to the testing result of D2D communicating pair in base station, and the down receiving signal intensity of these at least two downstream frequencys that send according to D2D communicating pair determines that the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum in these at least two downstream frequencys or downlink path loss maximum is the second telex network frequency.

Therefore, the method that the frequency of the embodiment of the present invention is selected, by the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum at least two downstream frequencys or downlink path loss maximum is defined as to the second telex network frequency, the interference of the second telex network to cell communication can be reduced, thereby the quality of the second telex network and cell communication can be guaranteed.

Above, in conjunction with Fig. 1 to Fig. 6, describe the method for selecting according to the frequency of the embodiment of the present invention in detail, below in conjunction with Fig. 7 to Figure 12, describe according to the subscriber equipment of the embodiment of the present invention and base station.

Fig. 7 shows according to the schematic block diagram of the subscriber equipment 300 of the embodiment of the present invention.As shown in Figure 7, this subscriber equipment 300 comprises:

Receiver module 310, for detection of the down receiving signal intensity of at least two downstream frequencys of one or more communities;

Acquisition module 320, the second telex network frequency of determining for the down receiving signal intensity of obtaining based on these at least two downstream frequencys, this the second telex network frequency is the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these at least two downstream frequencys, and this second telex network represents to share other communication that authorized user frequency range is carried out.

The subscriber equipment of the embodiment of the present invention, by the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum at least two downstream frequencys or downlink path loss maximum is defined as to the second telex network frequency, the interference of the second telex network to cell communication can be reduced, thereby the quality of the second telex network and cell communication can be guaranteed.

In embodiments of the present invention, as shown in Figure 8, alternatively, this acquisition module 320 comprises:

The first acquiring unit 321, for being defined as this second telex network frequency by the upstream frequency corresponding to downstream frequency of these at least two downstream frequency down receiving signal intensity minimums.

Alternatively, this first acquiring unit 321 also for, if the corresponding Yi Ge community only of the first frequency in these at least two downstream frequencys, the down receiving signal intensity using the down receiving signal intensity of community corresponding to this first frequency as this first frequency; If the corresponding a plurality of communities of the second frequency in these at least two downstream frequencys, the down receiving signal intensity using the maximum in the down receiving signal intensity of a plurality of communities corresponding to this second frequency as this second frequency, or, down receiving signal intensity using the down receiving signal intensity sum of a plurality of communities corresponding to this second frequency as this second frequency, or, the down receiving signal intensity using the mean value of the down receiving signal intensity of a plurality of communities corresponding to this second frequency as this second frequency; If the 3rd frequency in these at least two downstream frequencys does not detect any community, the down receiving signal intensity of the 3rd frequency is set to minimum; Using upstream frequency corresponding to the downstream frequency of down receiving signal intensity minimum in these at least two downstream frequencys as this second telex network frequency.

The subscriber equipment of the embodiment of the present invention, by the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum at least two downstream frequencys is defined as to the second telex network frequency, the interference of the second telex network to cell communication can be reduced, thereby the quality of the second telex network and cell communication can be guaranteed.

In embodiments of the present invention, as shown in Figure 8, alternatively, this acquisition module 320 comprises:

Second acquisition unit 322, for according to the down receiving signal intensity of these at least two downstream frequencys, determines the downlink path loss of these at least two downstream frequencys; The upstream frequency corresponding to downstream frequency of downlink path loss maximum in these at least two downstream frequencys is defined as to this second telex network frequency.

Alternatively, this second acquisition unit 322 also for, if the corresponding Yi Ge community only of the first frequency in these at least two downstream frequencys, the downlink path loss using the downlink path loss of community corresponding to this first frequency as this first frequency; If the corresponding a plurality of communities of the second frequency in these at least two downstream frequencys, the downlink path loss using the minimum value in the downlink path loss of a plurality of communities corresponding to this second frequency as this second frequency, or, the downlink path loss using the mean value of the downlink path loss of a plurality of communities corresponding to this second frequency as this second frequency; If the 3rd frequency in these at least two downstream frequencys does not detect any community, the downlink path loss of the 3rd frequency is set to maximum; Using upstream frequency corresponding to the downstream frequency of downlink path loss maximum in these at least two downstream frequencys as this second telex network frequency.

The subscriber equipment of the embodiment of the present invention, by the upstream frequency corresponding to downstream frequency of downlink path loss maximum at least two downstream frequencys is defined as to the second telex network frequency, the interference of the second telex network to cell communication can be reduced, thereby the quality of the second telex network and cell communication can be guaranteed.

Alternatively, this receiver module 310 is also for obtaining the transmit signal strength of these one or more communities from network side;

This second acquisition unit 322 also for, according to the down receiving signal intensity of the transmit signal strength of these one or more communities and these at least two downstream frequencys, determine the downlink path loss of these at least two downstream frequencys.

Alternatively, this receiver module 310 is also for obtaining the list of these one or more communities and the list of these at least two downstream frequencys from network side.

In embodiments of the present invention, alternatively, this second telex network is D2D communication;

This subscriber equipment 300 also comprises:

The first sending module, for this second telex network frequency is sent to base station, so that this base station sends to this second telex network frequency other subscriber equipmenies of this D2D communication.

Alternatively, this subscriber equipment 300 also comprises:

Timing determination module, for the timing base of selecting the frame of Serving cell regularly to communicate by letter as this D2D.

In embodiments of the present invention, as shown in Figure 9, alternatively, this subscriber equipment 300 also comprises:

The second sending module 330, for sending the down receiving signal intensity of these at least two downstream frequencys to base station;

This second telex network frequency that this receiver module 310 also sends for receiving this base station, wherein, this second telex network frequency is that this base station is according to the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these definite at least two downstream frequencys of the down receiving signal intensity of these at least two downstream frequencys;

This acquisition module 320 comprises:

The 3rd acquiring unit 323, this second telex network frequency sending for obtaining this base station of these receiver module 310 receptions.

Alternatively, this second telex network is D2D communication;

This second telex network frequency is that this base station is according to the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these definite at least two downstream frequencys of the down receiving signal intensity of these at least two downstream frequencys of this D2D communicating pair transmission.

Can be corresponding to the subscriber equipment in the method for selecting according to the frequency of the embodiment of the present invention according to the subscriber equipment 300 of the embodiment of the present invention, and above-mentioned and other operation of the modules in subscriber equipment 300 and/or function are respectively in order to realize the corresponding flow process of each method in Fig. 1 to Fig. 6, for simplicity, do not repeat them here.

Figure 10 shows according to the schematic block diagram of the base station 400 of the embodiment of the present invention.As shown in figure 10, this base station 400 comprises:

Receiver module 410, for receiving the down receiving signal intensity of at least two downstream frequencys of one or more communities that subscriber equipment sends;

Determination module 420, be used for according to the down receiving signal intensity of these at least two downstream frequencys, determine the second telex network frequency, this the second telex network frequency is the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these at least two downstream frequencys, and this second telex network represents to share other communication that authorized user frequency range is carried out;

Sending module 430, for sending to this subscriber equipment by this second telex network frequency.

The base station of the embodiment of the present invention, by the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum at least two downstream frequencys or downlink path loss maximum is defined as to the second telex network frequency, the interference of the second telex network to cell communication can be reduced, thereby the quality of the second telex network and cell communication can be guaranteed.

Alternatively, this determination module 420 comprises:

The first determining unit, for being defined as this second telex network frequency by the upstream frequency corresponding to downstream frequency of these at least two downstream frequency down receiving signal intensity minimums.

Alternatively, this determination module 420 comprises:

The second determining unit, for according to the down receiving signal intensity of these at least two downstream frequencys, determines the downlink path loss of these at least two downstream frequencys; The upstream frequency corresponding to downstream frequency of downlink path loss maximum in these at least two downstream frequencys is defined as to this second telex network frequency.

Alternatively, this base station 400 also comprises:

Acquisition module, for obtaining the transmit signal strength of these one or more communities;

This second determining unit also, for according to the down receiving signal intensity of the transmit signal strength of these one or more communities and these at least two downstream frequencys, is determined the downlink path loss of these at least two downstream frequencys.

Alternatively, this second telex network is D2D communication;

This determination module 420 also, for according to the down receiving signal intensity of these at least two downstream frequencys of this D2D communicating pair transmission, is determined this second telex network frequency.

Can be corresponding to the base station in the method for selecting according to the frequency of the embodiment of the present invention according to the base station 400 of the embodiment of the present invention, and above-mentioned and other operation of the modules in base station 400 and/or function are respectively in order to realize the corresponding flow process of each method in Fig. 1 to Fig. 6, for simplicity, do not repeat them here.

The base station of the embodiment of the present invention, by the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum at least two downstream frequencys or downlink path loss maximum is defined as to the second telex network frequency, the interference of the second telex network to cell communication can be reduced, thereby the quality of the second telex network and cell communication can be guaranteed.

Figure 11 shows the schematic block diagram of subscriber equipment 500 according to another embodiment of the present invention.As shown in figure 11, this subscriber equipment 500 comprises: receiver 510, processor 520 and transmitter 530.

This receiver 510 is for detection of the down receiving signal intensity of at least two downstream frequencys of one or more communities;

The second telex network frequency that this processor 520 is determined for the down receiving signal intensity of obtaining based on these at least two downstream frequencys, this the second telex network frequency is the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these at least two downstream frequencys, and this second telex network represents to share other communication that authorized user frequency range is carried out.

Alternatively, this processor 520 is also for being defined as this second telex network frequency by the upstream frequency corresponding to downstream frequency of these at least two downstream frequency down receiving signal intensity minimums.

Alternatively, this processor 520 also for, if the corresponding Yi Ge community only of the first frequency in these at least two downstream frequencys, the down receiving signal intensity using the down receiving signal intensity of community corresponding to this first frequency as this first frequency; If the corresponding a plurality of communities of the second frequency in these at least two downstream frequencys, the down receiving signal intensity using the maximum in the down receiving signal intensity of a plurality of communities corresponding to this second frequency as this second frequency, or, down receiving signal intensity using the down receiving signal intensity sum of a plurality of communities corresponding to this second frequency as this second frequency, or, the down receiving signal intensity using the mean value of the down receiving signal intensity of a plurality of communities corresponding to this second frequency as this second frequency; If the 3rd frequency in these at least two downstream frequencys does not detect any community, the down receiving signal intensity of the 3rd frequency is set to minimum; Using upstream frequency corresponding to the downstream frequency of down receiving signal intensity minimum in these at least two downstream frequencys as this second telex network frequency.

Alternatively, this processor 520 also, for according to the down receiving signal intensity of these at least two downstream frequencys, is determined the downlink path loss of these at least two downstream frequencys; The upstream frequency corresponding to downstream frequency of downlink path loss maximum in these at least two downstream frequencys is defined as to this second telex network frequency.

Alternatively, this processor 520 also for, if the corresponding Yi Ge community only of the first frequency in these at least two downstream frequencys, the downlink path loss using the downlink path loss of community corresponding to this first frequency as this first frequency; If the corresponding a plurality of communities of the second frequency in these at least two downstream frequencys, the downlink path loss using the minimum value in the downlink path loss of a plurality of communities corresponding to this second frequency as this second frequency, or, the downlink path loss using the mean value of the downlink path loss of a plurality of communities corresponding to this second frequency as this second frequency; If the 3rd frequency in these at least two downstream frequencys does not detect any community, the downlink path loss of the 3rd frequency is set to maximum; Using upstream frequency corresponding to the downstream frequency of downlink path loss maximum in these at least two downstream frequencys as this second telex network frequency.

Alternatively, this receiver 510 is also for obtaining the transmit signal strength of these one or more communities from network side;

This processor 520 also, for according to the down receiving signal intensity of the transmit signal strength of these one or more communities and these at least two downstream frequencys, is determined the downlink path loss of these at least two downstream frequencys.

Alternatively, this receiver 510 is also for obtaining the list of these one or more communities and the list of these at least two downstream frequencys from network side.

Alternatively, this second telex network is D2D communication;

This transmitter 530 is for this second telex network frequency is sent to base station, so that this base station sends to this second telex network frequency other subscriber equipmenies of this D2D communication.

Alternatively, this processor 520 is also for selecting the frame timing of Serving cell as the timing base of this D2D communication.

Alternatively, this transmitter 530 is also for sending the down receiving signal intensity of these at least two downstream frequencys to base station;

This second telex network frequency that this receiver 510 also sends for receiving this base station, wherein, this second telex network frequency is that this base station is according to the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these definite at least two downstream frequencys of the down receiving signal intensity of these at least two downstream frequencys;

This second telex network frequency that this processor 520 also sends for obtaining this base station of these receiver 510 receptions.

Alternatively, this second telex network is D2D communication;

This second telex network frequency is that this base station is according to the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these definite at least two downstream frequencys of the down receiving signal intensity of these at least two downstream frequencys of this D2D communicating pair transmission.

Can be corresponding to the subscriber equipment in the method for selecting according to the frequency of the embodiment of the present invention according to the subscriber equipment 500 of the embodiment of the present invention, and above-mentioned and other operation of the modules in subscriber equipment 500 and/or function are respectively in order to realize the corresponding flow process of each method in Fig. 1 to Fig. 6, for simplicity, do not repeat them here.

Figure 12 shows the schematic block diagram of base station 600 according to another embodiment of the present invention.As shown in figure 12, this base station 600 comprises:

Receiver 610, for receiving the down receiving signal intensity of at least two downstream frequencys of one or more communities that subscriber equipment sends;

Processor 620, be used for according to the down receiving signal intensity of these at least two downstream frequencys, determine the second telex network frequency, this the second telex network frequency is the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in these at least two downstream frequencys, and this second telex network represents to share other communication that authorized user frequency range is carried out;

Transmitter 630, for sending to this subscriber equipment by this second telex network frequency.

Alternatively, this processor 620 is also for being defined as this second telex network frequency by the upstream frequency corresponding to downstream frequency of these at least two downstream frequency down receiving signal intensity minimums.

Alternatively, this processor 620 also, for according to the down receiving signal intensity of these at least two downstream frequencys, is determined the downlink path loss of these at least two downstream frequencys; The upstream frequency corresponding to downstream frequency of downlink path loss maximum in these at least two downstream frequencys is defined as to this second telex network frequency.

Alternatively, this processor 620 is also for obtaining the transmit signal strength of these one or more communities;

This processor 620 also, for according to the down receiving signal intensity of the transmit signal strength of these one or more communities and these at least two downstream frequencys, is determined the downlink path loss of these at least two downstream frequencys.

Alternatively, this second telex network is D2D communication;

This processor 620 also, for according to the down receiving signal intensity of these at least two downstream frequencys of this D2D communicating pair transmission, is determined this second telex network frequency.

Can be corresponding to the base station in the method for selecting according to the frequency of the embodiment of the present invention according to the base station 600 of the embodiment of the present invention, and above-mentioned and other operation of the modules in base station 600 and/or function are respectively in order to realize the corresponding flow process of each method in Fig. 1 to Fig. 6, for simplicity, do not repeat them here.

Should be understood that in embodiments of the present invention, term "and/or" is only a kind of incidence relation of describing affiliated partner, and expression can exist three kinds of relations.For example, A and/or B, can represent: individualism A exists A and B, these three kinds of situations of individualism B simultaneously.In addition, character "/", generally represents that forward-backward correlation is to liking a kind of relation of "or" herein.

Those of ordinary skills can recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software is clearly described, composition and the step of each example described according to function in the above description in general manner.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds scope of the present invention.

Those skilled in the art can be well understood to, and with succinct, the specific works process of the system of foregoing description, device and unit, can, with reference to the corresponding process in preceding method embodiment, not repeat them here for convenience of description.

In the several embodiment that provide in the application, should be understood that disclosed system, apparatus and method can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual realization, can have other dividing mode, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.In addition, shown or discussed coupling each other or direct-coupling or communication connection can be indirect coupling or the communication connections by some interfaces, device or unit, can be also electric, machinery or other form connect.

The described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in a plurality of network element.Can select according to the actual needs some or all of unit wherein to realize the object of embodiment of the present invention scheme.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and can be also that two or more unit are integrated in a unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and also can adopt the form of SFU software functional unit to realize.

If the form of SFU software functional unit of usining described integrated unit realizes and during as production marketing independently or use, can be stored in a computer read/write memory medium.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words, or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) carry out all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CDs.

The above; it is only the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily modification or the replacement of various equivalences, within these modifications or replacement all should be encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.

Claims (32)

1. the method that frequency is selected, is characterized in that, comprising:
Detect the down receiving signal intensity of at least two downstream frequencys of one or more communities;
Obtain the second telex network frequency that the down receiving signal intensity based on described at least two downstream frequencys is determined, described the second telex network frequency is the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in described at least two downstream frequencys, and described the second telex network represents to share other communication that authorized user frequency range is carried out.
2. method according to claim 1, is characterized in that, described in obtain the second telex network frequency that down receiving signal intensity based on described at least two downstream frequencys is determined, comprising:
The upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum in described at least two downstream frequencys is defined as to described the second telex network frequency.
3. method according to claim 2, is characterized in that, described upstream frequency corresponding to downstream frequency by down receiving signal intensity minimum in described at least two downstream frequencys is defined as described the second telex network frequency, comprising:
If the first frequency in described at least two downstream frequencys is corresponding Yi Ge community only, the down receiving signal intensity using the down receiving signal intensity of community corresponding to described first frequency as described first frequency;
If the corresponding a plurality of communities of the second frequency in described at least two downstream frequencys, the down receiving signal intensity using the maximum in the down receiving signal intensity of a plurality of communities corresponding to described second frequency as described second frequency, or, down receiving signal intensity using the down receiving signal intensity sum of a plurality of communities corresponding to described second frequency as described second frequency, or, the down receiving signal intensity using the mean value of the down receiving signal intensity of a plurality of communities corresponding to described second frequency as described second frequency;
If the 3rd frequency in described at least two downstream frequencys does not detect any community, the down receiving signal intensity of described the 3rd frequency is set to minimum;
Using upstream frequency corresponding to the downstream frequency of down receiving signal intensity minimum in described at least two downstream frequencys as described the second telex network frequency.
4. method according to claim 1, is characterized in that, described in obtain the second telex network frequency that down receiving signal intensity based on described at least two downstream frequencys is determined, comprising:
According to the down receiving signal intensity of described at least two downstream frequencys, the downlink path loss of at least two downstream frequencys described in determining;
The upstream frequency corresponding to downstream frequency of downlink path loss maximum in described at least two downstream frequencys is defined as to described the second telex network frequency.
5. method according to claim 4, is characterized in that, described upstream frequency corresponding to downstream frequency by downlink path loss maximum in described at least two downstream frequencys is defined as described the second telex network frequency, comprising:
If the first frequency in described at least two downstream frequencys is corresponding Yi Ge community only, the downlink path loss using the downlink path loss of community corresponding to described first frequency as described first frequency;
If the corresponding a plurality of communities of the second frequency in described at least two downstream frequencys, the downlink path loss using the minimum value in the downlink path loss of a plurality of communities corresponding to described second frequency as described second frequency, or, the downlink path loss using the mean value of the downlink path loss of a plurality of communities corresponding to described second frequency as described second frequency;
If the 3rd frequency in described at least two downstream frequencys does not detect any community, the downlink path loss of described the 3rd frequency is set to maximum;
Using upstream frequency corresponding to the downstream frequency of downlink path loss maximum in described at least two downstream frequencys as described the second telex network frequency.
6. according to the method described in claim 4 or 5, it is characterized in that, described method also comprises:
From network side, obtain the transmit signal strength of described one or more communities;
The down receiving signal intensity of at least two downstream frequencys described in described basis, the downlink path loss of at least two downstream frequencys described in determining, comprising:
According to the down receiving signal intensity of the transmit signal strength of described one or more communities and described at least two downstream frequencys, the downlink path loss of at least two downstream frequencys described in determining.
7. according to the method described in any one in claim 1 to 6, it is characterized in that, described method also comprises:
From network side, obtain the list of described one or more communities and the list of described at least two downstream frequencys.
8. according to the method described in any one in claim 1 to 7, it is characterized in that, described the second telex network is D2D communication;
Described method also comprises:
Described the second telex network frequency is sent to base station, so that described base station sends to described the second telex network frequency other subscriber equipmenies of described D2D communication.
9. method according to claim 8, is characterized in that, described method also comprises:
Select the frame timing of Serving cell as the timing base of described D2D communication.
10. method according to claim 1, is characterized in that, before the second telex network frequency of determining in the described down receiving signal intensity of obtaining based on described at least two downstream frequencys, described method also comprises:
The down receiving signal intensity of at least two downstream frequencys described in sending to base station;
The second telex network frequency that the described down receiving signal intensity of obtaining based on described at least two downstream frequencys is determined, comprising:
Receive described the second telex network frequency that described base station sends, wherein, described the second telex network frequency is that described base station is according to the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in definite described at least two downstream frequencys of the down receiving signal intensity of described at least two downstream frequencys.
11. according to the method described in right 10, it is characterized in that, described the second telex network is D2D communication;
Described the second telex network frequency is that described base station is according to the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in definite described at least two downstream frequencys of the down receiving signal intensity of described at least two downstream frequencys of described D2D communicating pair transmission.
12. 1 kinds of methods that frequency is selected, is characterized in that, comprising:
The down receiving signal intensity of at least two downstream frequencys of one or more communities that reception subscriber equipment sends;
According to the down receiving signal intensity of described at least two downstream frequencys, determine the second telex network frequency, described the second telex network frequency is the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in described at least two downstream frequencys, and described the second telex network represents to share other communication that authorized user frequency range is carried out;
Described the second telex network frequency is sent to described subscriber equipment.
13. methods according to claim 12, is characterized in that, the down receiving signal intensity of at least two downstream frequencys, determines the second telex network frequency described in described basis, comprising:
The upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum in described at least two downstream frequencys is defined as to described the second telex network frequency.
14. methods according to claim 12, is characterized in that, the down receiving signal intensity of at least two downstream frequencys, determines the second telex network frequency described in described basis, comprising:
According to the down receiving signal intensity of described at least two downstream frequencys, the downlink path loss of at least two downstream frequencys described in determining;
The upstream frequency corresponding to downstream frequency of downlink path loss maximum in described at least two downstream frequencys is defined as to described the second telex network frequency.
15. methods according to claim 14, is characterized in that, described method also comprises:
Obtain the transmit signal strength of described one or more communities;
The down receiving signal intensity of at least two downstream frequencys described in described basis, the downlink path loss of at least two downstream frequencys described in determining, comprising:
According to the down receiving signal intensity of the transmit signal strength of described one or more communities and described at least two downstream frequencys, the downlink path loss of at least two downstream frequencys described in determining.
16. according to claim 12 to the method described in any one in 15, it is characterized in that, described the second telex network is D2D communication;
The down receiving signal intensity of at least two downstream frequencys described in described basis, determines the second telex network frequency, comprising:
The down receiving signal intensity of described at least two downstream frequencys that send according to described D2D communicating pair, determines described the second telex network frequency.
17. 1 kinds of subscriber equipmenies, is characterized in that, comprising:
Receiver module, for detection of the down receiving signal intensity of at least two downstream frequencys of one or more communities;
Acquisition module, the second telex network frequency of determining for the down receiving signal intensity of obtaining based on described at least two downstream frequencys, described the second telex network frequency is the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in described at least two downstream frequencys, and described the second telex network represents to share other communication that authorized user frequency range is carried out.
18. subscriber equipmenies according to claim 17, is characterized in that, described acquisition module comprises:
The first acquiring unit, for being defined as described the second telex network frequency by the upstream frequency corresponding to downstream frequency of described at least two downstream frequency down receiving signal intensity minimums.
19. subscriber equipmenies according to claim 18, it is characterized in that, described the first acquiring unit also for, if the first frequency in described at least two downstream frequencys is corresponding Yi Ge community only, the down receiving signal intensity using the down receiving signal intensity of community corresponding to described first frequency as described first frequency; If the corresponding a plurality of communities of the second frequency in described at least two downstream frequencys, the down receiving signal intensity using the maximum in the down receiving signal intensity of a plurality of communities corresponding to described second frequency as described second frequency, or, down receiving signal intensity using the down receiving signal intensity sum of a plurality of communities corresponding to described second frequency as described second frequency, or, the down receiving signal intensity using the mean value of the down receiving signal intensity of a plurality of communities corresponding to described second frequency as described second frequency; If the 3rd frequency in described at least two downstream frequencys does not detect any community, the down receiving signal intensity of described the 3rd frequency is set to minimum; Using upstream frequency corresponding to the downstream frequency of down receiving signal intensity minimum in described at least two downstream frequencys as described the second telex network frequency.
20. subscriber equipmenies according to claim 17, is characterized in that, described acquisition module comprises:
Second acquisition unit, for according to the down receiving signal intensity of described at least two downstream frequencys, the downlink path loss of at least two downstream frequencys described in determining; The upstream frequency corresponding to downstream frequency of downlink path loss maximum in described at least two downstream frequencys is defined as to described the second telex network frequency.
21. subscriber equipmenies according to claim 20, it is characterized in that, described second acquisition unit also for, if the first frequency in described at least two downstream frequencys is corresponding Yi Ge community only, the downlink path loss using the downlink path loss of community corresponding to described first frequency as described first frequency; If the corresponding a plurality of communities of the second frequency in described at least two downstream frequencys, the downlink path loss using the minimum value in the downlink path loss of a plurality of communities corresponding to described second frequency as described second frequency, or, the downlink path loss using the mean value of the downlink path loss of a plurality of communities corresponding to described second frequency as described second frequency; If the 3rd frequency in described at least two downstream frequencys does not detect any community, the downlink path loss of described the 3rd frequency is set to maximum; Using upstream frequency corresponding to the downstream frequency of downlink path loss maximum in described at least two downstream frequencys as described the second telex network frequency.
22. according to the subscriber equipment described in claim 20 or 21, it is characterized in that, described receiver module is also for obtaining the transmit signal strength of described one or more communities from network side;
Described second acquisition unit also for, according to the down receiving signal intensity of the transmit signal strength of described one or more communities and described at least two downstream frequencys, the downlink path loss of at least two downstream frequencys described in determining.
23. according to claim 17 to the subscriber equipment described in any one in 22, it is characterized in that, described receiver module is also for obtaining the list of described one or more communities and the list of described at least two downstream frequencys from network side.
24. according to claim 17 to the subscriber equipment described in any one in 23, it is characterized in that, described the second telex network is D2D communication;
Described subscriber equipment also comprises:
The first sending module, for described the second telex network frequency is sent to base station, so that described base station sends to described the second telex network frequency other subscriber equipmenies of described D2D communication.
25. subscriber equipmenies according to claim 24, is characterized in that, described subscriber equipment also comprises:
Timing determination module, for the timing base of selecting the frame of Serving cell regularly to communicate by letter as described D2D.
26. subscriber equipmenies according to claim 17, is characterized in that, described subscriber equipment also comprises:
The second sending module, for the down receiving signal intensity at least two downstream frequencys described in the transmission of base station;
Described the second telex network frequency that described receiver module also sends for receiving described base station, wherein, described the second telex network frequency is that described base station is according to the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in definite described at least two downstream frequencys of the down receiving signal intensity of described at least two downstream frequencys;
Described acquisition module comprises:
The 3rd acquiring unit, described the second telex network frequency sending for obtaining the described base station of described receiver module reception.
27. according to the subscriber equipment described in right 26, it is characterized in that, described the second telex network is D2D communication;
Described the second telex network frequency is that described base station is according to the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in definite described at least two downstream frequencys of the down receiving signal intensity of described at least two downstream frequencys of described D2D communicating pair transmission.
28. 1 kinds of base stations, is characterized in that, comprising:
Receiver module, for receiving the down receiving signal intensity of at least two downstream frequencys of one or more communities that subscriber equipment sends;
Determination module, be used for according to the down receiving signal intensity of described at least two downstream frequencys, determine the second telex network frequency, described the second telex network frequency is the upstream frequency corresponding to downstream frequency of down receiving signal intensity minimum or downlink path loss maximum in described at least two downstream frequencys, and described the second telex network represents to share other communication that authorized user frequency range is carried out;
Sending module, for sending to described subscriber equipment by described the second telex network frequency.
29. base stations according to claim 28, is characterized in that, described determination module comprises:
The first determining unit, for being defined as described the second telex network frequency by the upstream frequency corresponding to downstream frequency of described at least two downstream frequency down receiving signal intensity minimums.
30. base stations according to claim 28, is characterized in that, described determination module comprises:
The second determining unit, for according to the down receiving signal intensity of described at least two downstream frequencys, the downlink path loss of at least two downstream frequencys described in determining; The upstream frequency corresponding to downstream frequency of downlink path loss maximum in described at least two downstream frequencys is defined as to described the second telex network frequency.
31. base stations according to claim 30, is characterized in that, described base station also comprises:
Acquisition module, for obtaining the transmit signal strength of described one or more communities;
Described the second determining unit is also for according to the down receiving signal intensity of the transmit signal strength of described one or more communities and described at least two downstream frequencys, the downlink path loss of at least two downstream frequencys described in determining.
32. according to the base station described in any one in claim 28 to 31, it is characterized in that, described the second telex network is D2D communication;
Described determination module also, for according to the down receiving signal intensity of described at least two downstream frequencys of described D2D communicating pair transmission, is determined described the second telex network frequency.
CN201210273224.0A 2012-08-02 2012-08-02 Frequency selection method, user equipment and base station CN103581919A (en)

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