CN103929755A - Communication method and device - Google Patents

Communication method and device Download PDF

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Publication number
CN103929755A
CN103929755A CN201310014320.8A CN201310014320A CN103929755A CN 103929755 A CN103929755 A CN 103929755A CN 201310014320 A CN201310014320 A CN 201310014320A CN 103929755 A CN103929755 A CN 103929755A
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CN
China
Prior art keywords
performance parameter
user equipment
communication performance
subscriber equipment
base station
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CN201310014320.8A
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Chinese (zh)
Inventor
周晗
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201310014320.8A priority Critical patent/CN103929755A/en
Publication of CN103929755A publication Critical patent/CN103929755A/en
Pending legal-status Critical Current

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Abstract

The embodiment of the invention provides a communication method and device, and relates to the field of communication. According to the communication method and device, the communication rate of user equipment can be improved, the communication mode of the user equipment is optimized, and the communication mode of a whole network is optimized. The method comprises the steps that first user equipment obtains D2D communication performance parameters; the first user equipment obtains a comparative result, the comparative result is generated by the first user equipment after the first user equipment judges whether the D2D communication performance parameters are superior to cellular communication performance parameters, or the comparative result is fed back to the first user equipment by a base station after the base station judges whether the D2D communication performance parameters are superior to the cellular communication performance parameters; when the comparative result indicates that D2D communication is selected by the first user equipment, the first user equipment sends data needing to be transmitted to second user equipment; when the comparative result indicates that cellular communication is selected by the first user equipment, the first user equipment sends data needing to be transmitted to the base station.

Description

A kind of communication means and device
Technical field
The present invention relates to the communications field, relate in particular to a kind of communication means and device.
Background technology
In recent years, wireless communication technology emerges in an endless stream, and has obtained huge development, and the cordless communication network of the employing wireless communication technology has become an indispensable part in people's life.
Current cordless communication network is mainly Cellular Networks, and in Cellular Networks, the pattern communicating between subscriber equipment mainly contains cellular communication and communicates by letter with D2D.In cellular communication, while communicating between two subscriber equipmenies, the data of transmitting-receiving need be through the forwarding of base station, and this process has taken twice frequency resource.If communicating pair close together, between two subscriber equipmenies, can directly adopt D2D (Device to Device, device-to-device) communication transmitting data, not need the forwarding through base station, like this, the frequency resource of half is saved in communicate by letter comparable cellular communication of D2D.
In prior art, if two subscriber equipmenies need communicate, two subscriber equipmenies or base station be according to preset strategy, as the size of total transmitting power of two subscriber equipmenies under two kinds of communication patterns, decides and between two subscriber equipmenies, carry out cellular communication or D2D communication.
But, above-mentioned communication means is only the total transmitting power according to two subscriber equipmenies, the middle optimum communication pattern of having selected of communicating by letter with D2D in cellular communication, the transmitting power that can not ensure each subscriber equipment is minimum, that is to say, for each subscriber equipment, selected communication pattern might not be optimum, therefore the traffic rate of subscriber equipment also has the space further promoting.
Summary of the invention
Embodiments of the invention provide a kind of communication means and device, can improve the traffic rate of subscriber equipment, the communication pattern of optimizing user equipment, thus optimize the communication pattern of whole network.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, the embodiment of the present invention provides a kind of communication means, comprising:
First user equipment obtains the device-to-device D2D communication performance parameter of described first user equipment to the second subscriber equipment;
Described first user equipment obtains comparative result, described comparative result is that described first user equipment obtains described first user equipment after the cellular communication performance parameter of base station, described first user equipment judges whether described D2D communication performance parameter is better than after described cellular communication performance parameter, described first user equipment generates, or, described comparative result is that described first user equipment transmitting channel detection reference signal SRS and described D2D communication performance parameter are to described base station, described base station obtains described cellular communication performance parameter according to described SRS, described base station judges whether described D2D communication performance parameter is better than after described cellular communication performance parameter, described base station is back to described first user equipment,
In the time that described comparative result indicates described first user equipment to select D2D communication, the data of need transmission are sent to described the second subscriber equipment by described first user equipment;
In the time that described comparative result indicates described first user equipment to select cellular communication, the described data that need transmission are sent to described base station by described first user equipment.
In the possible implementation of the first of first aspect, described first user equipment obtains described first user equipment and specifically comprises to the method for the device-to-device D2D communication performance parameter of the second subscriber equipment:
Described first user equipment sends the first reference signal to described the second subscriber equipment, to make described the second subscriber equipment obtain described D2D communication performance parameter according to described the first reference signal;
Described first user equipment receives the described D2D communication performance parameter from described the second subscriber equipment.
In conjunction with the possible implementation of the first of first aspect or first aspect, in the possible implementation of the second, described first user equipment obtains described first user equipment and specifically comprises to the method for the cellular communication performance parameter of base station:
Described first user equipment sends described SRS to described base station, to make described base station obtain described cellular communication performance parameter according to described SRS;
Described first user equipment receives the described cellular communication performance parameter from described base station.
In conjunction with the possible implementation of the first of first aspect or first aspect to any implementation in the possible implementation of the second, in the third possible implementation, described D2D communication performance parameter comprises transmitting power, transmission channel quality or the message transmission rate of described first user equipment, and/or described cellular communication performance parameter comprises transmitting power, transmission channel quality or the message transmission rate of described first user equipment.
In conjunction with the possible implementation of the first of first aspect or first aspect to any implementation in the third possible implementation, in the 4th kind of possible implementation, whether described D2D communication performance parameter is better than described cellular communication performance parameter specifically comprises:
Whether described first user equipment is less than the transmitting power of described first user equipment to described base station to the transmitting power of described the second subscriber equipment, or,
Described first user equipment is to the whether transmission channel quality to described base station higher than described first user equipment of the transmission channel quality of described the second subscriber equipment, or,
Whether described first user equipment is greater than the message transmission rate of described first user equipment to described base station to the message transmission rate of described the second subscriber equipment.
Second aspect, the embodiment of the present invention provides a kind of subscriber equipment, comprising:
Processing unit, for obtaining the D2D communication performance parameter of described subscriber equipment to the second subscriber equipment, and obtain comparative result, described comparative result is that described processing unit obtains described subscriber equipment after the cellular communication performance parameter of base station, described processing unit judges whether described D2D communication performance parameter is better than after described cellular communication performance parameter, described processing unit generates, or, described comparative result is that transmitting element sends SRS and described D2D communication performance parameter extremely behind described base station, described base station obtains described cellular communication performance parameter according to described SRS, described base station judges whether described D2D communication performance parameter is better than after described cellular communication performance parameter, described base station is returned,
Described transmitting element, when indicate described subscriber equipment to select D2D communication when described comparative result, sends and needs the data of transmission to described the second subscriber equipment; In the time that described comparative result indicates described subscriber equipment to select cellular communication, send the described data of transmission that need to described base station.
In the possible implementation of the first of second aspect, described transmitting element, specifically for sending the first reference signal to described the second subscriber equipment, to make described the second subscriber equipment obtain described D2D communication performance parameter according to described the first reference signal;
Receiving element, specifically for receiving the described D2D communication performance parameter from described the second subscriber equipment.
In conjunction with the possible implementation of the first of second aspect or second aspect, in the possible implementation of the second, described transmitting element, specifically for sending described SRS to described base station, to make described base station obtain described cellular communication performance parameter according to described SRS;
Described receiving element, specifically for receiving the described cellular communication performance parameter from described base station.
In conjunction with the possible implementation of the first of second aspect or second aspect to any implementation in the possible implementation of the second, in the third possible implementation, described D2D communication performance parameter comprises transmitting power, transmission channel quality or the message transmission rate of described subscriber equipment, and/or described cellular communication performance parameter comprises transmitting power, transmission channel quality or the message transmission rate of described subscriber equipment.
In conjunction with the possible implementation of the first of second aspect or second aspect to any implementation in the third possible implementation, in the 4th kind of possible implementation, whether described D2D communication performance parameter is better than described cellular communication performance parameter specifically comprises:
Whether described subscriber equipment is less than the transmitting power of described subscriber equipment to described base station to the transmitting power of described the second subscriber equipment, or,
Described subscriber equipment is to the whether transmission channel quality to described base station higher than described subscriber equipment of the transmission channel quality of described the second subscriber equipment, or,
Whether described subscriber equipment is greater than the message transmission rate of described subscriber equipment to described base station to the message transmission rate of described the second subscriber equipment.
The embodiment of the present invention provides a kind of communication means and device, obtain the device-to-device D2D communication performance parameter of first user equipment to the second subscriber equipment by first user equipment, then first user equipment obtains comparative result, comparative result is that first user equipment obtains first user equipment after the cellular communication performance parameter of base station, first user equipment judges whether D2D communication performance parameter is better than after cellular communication performance parameter, first user equipment generates, or, comparative result is that first user equipment transmitting channel detection reference signal SRS and D2D communication performance parameter are to base station, base station obtains cellular communication performance parameter according to SRS, base station judges whether D2D communication performance parameter is better than after cellular communication performance parameter, base station is back to first user equipment, finally in the time that comparative result instruction first user equipment is selected D2D communication, the data of need transmission are sent to the second subscriber equipment by first user equipment, in the time that comparative result instruction first user equipment is selected cellular communication, the data of need transmission are sent to base station by first user equipment.By this scheme, because subscriber equipment can be selected communication performance parameter, preferably communication pattern and other subscriber equipmenies communicate, therefore, subscriber equipment is with this preferably when communication pattern communicates, can improve the traffic rate of subscriber equipment, the communication pattern of optimizing user equipment, thus optimize the communication pattern of whole network.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The method flow diagram one of a kind of communication means that Fig. 1 provides for the embodiment of the present invention;
The method flow diagram two of a kind of communication means that Fig. 2 provides for the embodiment of the present invention;
The method flow diagram three of a kind of communication means that Fig. 3 provides for the embodiment of the present invention;
The structural representation one of a kind of subscriber equipment that Fig. 4 provides for the embodiment of the present invention;
The structural representation two of a kind of subscriber equipment that Fig. 5 provides for the embodiment of the present invention;
The structural representation three of a kind of subscriber equipment that Fig. 6 provides for the embodiment of the present invention;
The communication system block diagram that Fig. 7 provides for the 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 only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Term "and/or" herein, is only a kind of incidence relation of describing affiliated partner, and expression can exist three kinds of relations, and 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 "/" herein, generally represents that forward-backward correlation is to liking a kind of relation of "or".
Embodiment mono-
The embodiment of the present invention provides a kind of communication means, as shown in Figure 1, comprising:
S101, first user equipment obtain the D2D communication performance parameter of first user equipment to the second subscriber equipment.
A kind of communication pattern that D2D communication is device-to-device, the pattern directly communicating between this equipment and equipment is due to the infrastructure without any need for middle, that is to say, if an equipment need transfer data to another equipment, this equipment can directly transmit the data to another equipment, and therefore, D2D communication can better utilize frequency resource, improve the capacity of Cellular Networks, reduce the expense of base station control signal simultaneously.
Exemplary, in the embodiment of the present invention, first first user equipment obtain D2D communication performance parameter, and D2D communication performance parameter is first user equipment and the second subscriber equipment performance parameter while directly communicating.
S102, first user equipment obtains comparative result, comparative result is that first user equipment obtains first user equipment after the cellular communication performance parameter of base station, first user equipment judges whether D2D communication performance parameter is better than after cellular communication performance parameter, first user equipment generates, or, comparative result is that first user equipment sends SRS (sounding referencesignal, Sounding Reference Signal) with D2D communication performance parameter to base station, base station obtains cellular communication performance parameter according to SRS, base station judges whether D2D communication performance parameter is better than after cellular communication performance parameter, base station is back to first user equipment.
Cellular communication is that equipment is to base station, a kind of communication pattern to equipment by base station again, cellular communication is different from D2D communication pattern: under cellular communication pattern, need be through base station while communicating between equipment and equipment, that is to say, if an equipment need transfer data to another equipment, first this equipment be sent to base station by these data, then by base station by this data retransmission to another equipment.
Exemplary, first user equipment gets after the D2D communication performance parameter between the second subscriber equipment, and first user equipment also need obtain from base station the cellular communication performance parameter of first user equipment to base station.
It should be noted that, above-mentioned first user equipment obtains comparative result following two kinds of implementations:
(1) first user comparison in equipment D2D communication performance parameter and cellular communication performance parameter, and judge whether D2D communication performance parameter is better than after cellular communication performance parameter, and first user equipment generates corresponding comparative result.
(2) first user equipment sends SRS to base station, so that base station obtains cellular communication performance parameter according to SRS; And first user equipment sends D2D communication performance parameter to base station, so that relatively D2D communication performance parameter and cellular communication performance parameter of base station, and judge whether D2D communication performance parameter is better than after cellular communication performance parameter, and corresponding comparative result is returned to first user equipment in base station.
So far, first user equipment gets the comparative result whether D2D communication performance parameter is better than cellular communication performance parameter.
S103, in the time that comparative result instruction first user equipment is selected D2D communication, the data of need transmission are sent to the second subscriber equipment by first user equipment.
If the comparative result that above-mentioned first user equipment obtains instruction first user equipment is selected D2D communication, that is to say, concerning first user equipment, D2D communication performance parameter is better than cellular communication performance parameter, according to this comparative result, first user equipment is selected D2D communication pattern, and first user equipment directly sends data to the second subscriber equipment that needs transmission.
S104, in the time that comparative result instruction first user equipment is selected cellular communication, the data of need transmission are sent to base station by first user equipment.
If the comparative result that above-mentioned first user equipment obtains instruction first user equipment is selected cellular communication, that is to say, concerning first user equipment, cellular communication performance parameter is better than D2D communication performance parameter, according to this comparative result, first user equipment is selected cellular communication pattern, and first user equipment sends needs the data of transmission to base station, to make base station by this data retransmission to the second subscriber equipment that need transmit.
The embodiment of the present invention provides a kind of communication means, obtain the device-to-device D2D communication performance parameter of first user equipment to the second subscriber equipment by first user equipment, then first user equipment obtains comparative result, comparative result is that first user equipment obtains first user equipment after the cellular communication performance parameter of base station, first user equipment judges whether D2D communication performance parameter is better than after cellular communication performance parameter, first user equipment generates, or, comparative result is that first user equipment transmitting channel detection reference signal SRS and D2D communication performance parameter are to base station, base station obtains cellular communication performance parameter according to SRS, base station judges whether D2D communication performance parameter is better than after cellular communication performance parameter, base station is back to first user equipment, finally in the time that comparative result instruction first user equipment is selected D2D communication, the data of need transmission are sent to the second subscriber equipment by first user equipment, in the time that comparative result instruction first user equipment is selected cellular communication, the data of need transmission are sent to base station by first user equipment.By this scheme, because subscriber equipment can be selected communication performance parameter, preferably communication pattern and other subscriber equipmenies communicate, therefore, subscriber equipment is with this preferably when communication pattern communicates, can improve the traffic rate of subscriber equipment, the communication pattern of optimizing user equipment, thus optimize the communication pattern of whole network.
Embodiment bis-
The embodiment of the present invention provides a kind of communication means, as shown in Figure 2, comprising:
S201, first user equipment send the first reference signal to the second subscriber equipment.
First user equipment sends the first reference signal to the second subscriber equipment, to make the second subscriber equipment obtain the D2D communication performance parameter of first user equipment to the second subscriber equipment according to the first reference signal.
A kind of communication pattern that D2D communication is device-to-device, the pattern directly communicating between this equipment and equipment is due to the infrastructure without any need for middle, that is to say, if an equipment need transfer data to another equipment, this equipment can directly transmit the data to another equipment, and therefore, D2D communication can better utilize frequency resource, improve the capacity of Cellular Networks, reduce the expense of base station control signal simultaneously.
It should be noted that, the method that above-mentioned the second subscriber equipment obtains D2D communication performance parameter can be that the second subscriber equipment is measured the link load of the first reference signal, and calculates corresponding D2D communication performance parameter according to this link load.
D2D communication performance parameter can comprise transmitting power, transmission channel quality or the message transmission rate of first user equipment.
Be understandable that the transmitting power when transmitting power of the first user equipment that D2D communication performance parameter comprises can be first user equipment sending data to the second subscriber equipment; Transmission channel quality can be the quality of the transmission channel between first user equipment and the second subscriber equipment; Message transmission rate when message transmission rate can be first user equipment sending data to the second subscriber equipment.
S202, first user equipment receive the D2D communication performance parameter from the second subscriber equipment.
The second subscriber equipment gets after D2D communication performance parameter, and this D2D communication performance parameter is sent to first user equipment by the second subscriber equipment, and first user equipment receives the D2D communication performance parameter from the second subscriber equipment.
It should be noted that, above-mentioned S201 and S202 are that first user equipment obtains the process of first user equipment to the D2D communication performance parameter of the second subscriber equipment.
Especially, the first user equipment that the embodiment of the present invention provides obtains first user equipment:
(1) first user equipment receives the second reference signal from the second subscriber equipment.
(2) first user equipment obtains the D2D communication performance parameter of first user equipment to the second subscriber equipment according to the second reference signal.
Concrete, the method that above-mentioned first user equipment obtains D2D communication performance parameter can be, the link load of first user device measuring the second reference signal, and calculate corresponding D2D communication performance parameter according to this link load.
One of ordinary skill in the art will appreciate that, first user equipment sends after the first reference signal to the second subscriber equipment, the D2D communication performance parameter from the second subscriber equipment and first user equipment that first user equipment receives receive after the second reference signal from the second subscriber equipment, and the D2D communication performance parameter that first user equipment obtains according to the second reference signal is identical.
Be understandable that, the transmitting power of the first user equipment that D2D communication performance parameter comprises can be the transmitting power of the second subscriber equipment while sending data to first user equipment; Transmission channel quality can be the quality of the transmission channel between the second subscriber equipment and first user equipment; Message transmission rate can be the message transmission rate of the second subscriber equipment while sending data to first user equipment.
S203, first user equipment send SRS to base station.
First user equipment sends SRS to base station, to make base station obtain the cellular communication performance parameter of first user equipment to base station according to SRS.
Cellular communication is that equipment is to base station, arrive again a kind of communication pattern of equipment, this communication pattern is different from D2D communication pattern: need be through base station while communicating between equipment and equipment, that is to say, if an equipment need transfer data to another equipment, first this equipment be sent to base station by these data, then by base station by this data retransmission to another equipment.
It should be noted that, the method that above-mentioned base station obtains cellular communication performance parameter can be, the link load of base station measurement SRS, and calculate corresponding cellular communication performance parameter according to this link load.
Cellular communication performance parameter can comprise transmitting power, transmission channel quality or the message transmission rate of first user equipment.
Be understandable that, the transmitting power of the first user equipment that cellular communication performance parameter comprises can be the transmitting power of first user equipment sending data during to base station; Transmission channel quality can be the quality of the transmission channel between first user equipment and base station; Message transmission rate can be the message transmission rate of first user equipment sending data during to base station.
S204, first user equipment receive the cellular communication performance parameter from base station.
Base station gets after cellular communication performance parameter, and this cellular communication performance parameter is sent to first user equipment by base station, and first user equipment receives the cellular communication performance parameter from base station.
S205, first user comparison in equipment D2D communication performance parameter and cellular communication performance parameter, and judge whether D2D communication performance parameter is better than after cellular communication performance parameter, first user equipment generates comparative result.
First user equipment gets after D2D communication performance parameter and cellular communication performance parameter, first user comparison in equipment D2D communication performance parameter and cellular communication performance parameter, and judge whether D2D communication performance parameter is better than after cellular communication performance parameter, and first user equipment generates corresponding comparative result.
If S206 comparative result instruction first user equipment is selected D2D communication, first user equipment is sent to the second subscriber equipment by the data of need transmission.
If the comparative result that above-mentioned first user equipment generates instruction first user equipment is selected D2D communication, according to this comparative result, first user equipment is selected D2D communication pattern, and first user equipment directly sends data to the second subscriber equipment that needs transmission.
If S207 comparative result instruction first user equipment is selected cellular communication, first user equipment is sent to base station by the data of need transmission, to make base station by this data retransmission to the second subscriber equipment.
If the comparative result that above-mentioned first user equipment generates instruction first user equipment is selected cellular communication, according to this comparative result, first user equipment is selected cellular communication pattern, be that first user equipment sends the data that need transmit to base station, to make base station by this data retransmission to the second subscriber equipment.
It should be noted that, the present invention does not limit the execution sequence of S201-S202 and S203-S204, that is to say, the embodiment of the present invention can first be carried out S201-S202, rear execution S203-S204; Also can first carry out S203-S204, rear execution S201-S202; Can also carry out S201-S202 and S203-S204 simultaneously.
The embodiment of the present invention also provides a kind of another kind of implementation of communication means, as shown in Figure 3, comprising:
S301, first user equipment send the first reference signal to the second subscriber equipment.
First user equipment sends the first reference signal to the second subscriber equipment, to make the second subscriber equipment obtain the D2D communication performance parameter of first user equipment to the second subscriber equipment according to the first reference signal.
It should be noted that, the method that above-mentioned the second subscriber equipment obtains D2D communication performance parameter can be that the second subscriber equipment is measured the link load of the first reference signal, and calculates corresponding D2D communication performance parameter according to this link load.
D2D communication performance parameter can comprise transmitting power, transmission channel quality or the message transmission rate of first user equipment.
Be understandable that the transmitting power when transmitting power of the first user equipment that D2D communication performance parameter comprises can be first user equipment sending data to the second subscriber equipment; Transmission channel quality can be the quality of the transmission channel between first user equipment and the second subscriber equipment; Message transmission rate when message transmission rate can be first user equipment sending data to the second subscriber equipment.
S302, first user equipment receive the D2D communication performance parameter from the second subscriber equipment.
The second subscriber equipment gets after D2D communication performance parameter, and this D2D communication performance parameter is sent to first user equipment by the second subscriber equipment, and first user equipment receives the D2D communication performance parameter from the second subscriber equipment.
It should be noted that, above-mentioned S301 and S302 are that first user equipment obtains the process of first user equipment to the D2D communication performance parameter of the second subscriber equipment.
Especially, the first user equipment that the embodiment of the present invention provides obtains first user equipment:
(1) first user equipment receives the second reference signal from the second subscriber equipment.
(2) first user equipment obtains the D2D communication performance parameter of first user equipment to the second subscriber equipment according to the second reference signal.
Concrete, the method that above-mentioned first user equipment obtains D2D communication performance parameter can be, the link load of first user device measuring the second reference signal, and calculate corresponding D2D communication performance parameter according to this link load.
One of ordinary skill in the art will appreciate that, first user equipment sends after the first reference signal to the second subscriber equipment, the D2D communication performance parameter from the second subscriber equipment and first user equipment that first user equipment receives receive after the second reference signal from the second subscriber equipment, and the D2D communication performance parameter that first user equipment obtains according to the second reference signal is identical.
Be understandable that, the transmitting power of the first user equipment that D2D communication performance parameter comprises can be the transmitting power of the second subscriber equipment while sending data to first user equipment; Transmission channel quality can be the quality of the transmission channel between the second subscriber equipment and first user equipment; Message transmission rate can be the message transmission rate of the second subscriber equipment while sending data to first user equipment.
S303, first user equipment send SRS to base station, to make base station obtain the cellular communication performance parameter of first user equipment to base station according to SRS.
First user equipment sends SRS to base station, to make base station get the cellular communication performance parameter of first user equipment to base station according to this SRS.
It should be noted that, the method that above-mentioned base station obtains cellular communication performance parameter can be, the link load of base station measurement SRS, and calculate corresponding cellular communication performance parameter according to this link load.
Cellular communication performance parameter can comprise transmitting power, transmission channel quality or the message transmission rate of first user equipment.
Be understandable that, the transmitting power of the first user equipment that cellular communication performance parameter comprises can be the transmitting power of first user equipment sending data during to base station; Transmission channel quality can be the quality of the transmission channel between first user equipment and base station; Message transmission rate can be the message transmission rate of first user equipment sending data during to base station.
S304, first user equipment send D2D communication performance parameter to base station, to make relatively D2D communication performance parameter and cellular communication performance parameter of base station, and judge whether D2D communication performance parameter is better than after cellular communication performance parameter, generate comparative result.
First user equipment sends D2D communication performance parameter to base station, with the cellular communication performance parameter that base station D2D communication performance parameter and base station from first user equipment that relatively base station receives are obtained, and judge whether D2D communication performance parameter is better than after cellular communication performance parameter, base station generates corresponding comparative result, and this comparative result is back to first user equipment by base station.
S305, first user equipment receive the comparative result from base station.
First user equipment receives the comparative result from base station, to communicate according to communication pattern and second subscriber equipment of this comparative result instruction.
If S306 comparative result instruction first user equipment is selected D2D communication, first user equipment is sent to the second subscriber equipment by the data of need transmission.
If the comparative result that above-mentioned first user equipment generates instruction first user equipment is selected D2D communication, according to this comparative result, first user equipment is selected D2D communication pattern, and first user equipment directly sends data to the second subscriber equipment that needs transmission.
If S307 comparative result instruction first user equipment is selected cellular communication, first user equipment is sent to base station by the data of need transmission, to make base station by this data retransmission to the second subscriber equipment.
If the comparative result that above-mentioned first user equipment generates instruction first user equipment is selected cellular communication, according to this comparative result, first user equipment is selected cellular communication pattern, be that first user equipment sends the data that need transmit to base station, to make base station by this data retransmission to the second subscriber equipment.
It should be noted that, the present invention does not limit the execution sequence of S301-S302 and S303, that is to say, the embodiment of the present invention can first be carried out S301-S302, rear execution S303; Also can first carry out S303, rear execution S301-S302; Can also carry out S301-S302 and S303 simultaneously.
The embodiment of the present invention provides a kind of communication means, obtain the device-to-device D2D communication performance parameter of first user equipment to the second subscriber equipment by first user equipment, then first user equipment obtains comparative result, comparative result is that first user equipment obtains first user equipment after the cellular communication performance parameter of base station, first user equipment judges whether D2D communication performance parameter is better than after cellular communication performance parameter, first user equipment generates, or, comparative result is that first user equipment transmitting channel detection reference signal SRS and D2D communication performance parameter are to base station, base station obtains cellular communication performance parameter according to SRS, base station judges whether D2D communication performance parameter is better than after cellular communication performance parameter, base station is back to first user equipment, finally in the time that comparative result instruction first user equipment is selected D2D communication, the data of need transmission are sent to the second subscriber equipment by first user equipment, in the time that comparative result instruction first user equipment is selected cellular communication, the data of need transmission are sent to base station by first user equipment.By this scheme, because subscriber equipment can be selected communication performance parameter, preferably communication pattern and other subscriber equipmenies communicate, therefore, subscriber equipment is with this preferably when communication pattern communicates, can improve the traffic rate of subscriber equipment, the communication pattern of optimizing user equipment, thus optimize the communication pattern of whole network.
Embodiment tri-
As shown in Figure 4, the embodiment of the present invention provides a kind of subscriber equipment 1, comprising:
Processing unit 10, for obtaining the D2D communication performance parameter of described subscriber equipment 1 to second subscriber equipment, and obtain comparative result, described comparative result is that described processing unit 10 obtains described subscriber equipment 1 after the cellular communication performance parameter of base station, described processing unit 10 judges whether described D2D communication performance parameter is better than after described cellular communication performance parameter, described processing unit 10 generates, or, described comparative result is that transmitting element 11 sends SRS and described D2D communication performance parameter to described base station, described base station obtains described cellular communication performance parameter according to described SRS, described base station judges whether described D2D communication performance parameter is better than after described cellular communication performance parameter, described base station is returned.
Described transmitting element 11, needs the data of transmission to described the second subscriber equipment for indicating described subscriber equipment 1 to select D2D when communication when described comparative result, sending; In the time that described comparative result indicates described subscriber equipment 1 to select cellular communication, send the described data of transmission that need to described base station.
Further, as shown in Figure 5, described transmitting element 11, specifically for sending the first reference signal to described the second subscriber equipment, to make described the second subscriber equipment obtain described D2D communication performance parameter according to described the first reference signal;
Receiving element 12, specifically for receiving the described D2D communication performance parameter from described the second subscriber equipment.
The subscriber equipment 1 providing corresponding to the embodiment of the present invention obtains another method of the D2D communication performance parameter of subscriber equipment 1 to second subscriber equipment:
Described receiving element 12, for receiving the second reference signal from described the second subscriber equipment.
Described processing unit 10, for obtaining the described D2D communication performance parameter of described subscriber equipment 1 to described the second subscriber equipment according to described the second reference signal.
Further, described transmitting element 11, specifically for sending described SRS to described base station, to make described base station obtain described cellular communication performance parameter according to described SRS;
Described receiving element 12, specifically for receiving the described cellular communication performance parameter from described base station.
Further, described D2D communication performance parameter can comprise transmitting power, transmission channel quality or the message transmission rate of described subscriber equipment 1, and/or described cellular communication performance parameter can comprise transmitting power, transmission channel quality or the message transmission rate of described subscriber equipment 1.
Further, whether described D2D communication performance parameter is better than described cellular communication performance parameter and can comprises:
Whether described subscriber equipment 1 is less than the transmitting power of described subscriber equipment 1 to described base station to the transmitting power of described the second subscriber equipment,
Or described subscriber equipment 1 is to the whether transmission channel quality to described base station higher than described subscriber equipment 1 of the transmission channel quality of described the second subscriber equipment,
Or whether described subscriber equipment 1 is greater than the message transmission rate of described subscriber equipment 1 to described base station to the message transmission rate of described the second subscriber equipment.
The embodiment of the present invention provides a kind of subscriber equipment, by first obtaining the device-to-device D2D communication performance parameter of subscriber equipment to the second subscriber equipment, then subscriber equipment obtains comparative result, comparative result is that subscriber equipment obtains subscriber equipment after the cellular communication performance parameter of base station, subscriber equipment judges whether D2D communication performance parameter is better than after cellular communication performance parameter, subscriber equipment generates, or, comparative result is that subscriber equipment transmitting channel detection reference signal SRS and D2D communication performance parameter are to base station, base station obtains cellular communication performance parameter according to SRS, base station judges whether D2D communication performance parameter is better than after cellular communication performance parameter, base station is back to subscriber equipment, finally in the time that comparative result equipment for indicating user is selected D2D communication, the data of need transmission are sent to the second subscriber equipment by subscriber equipment, in the time that comparative result equipment for indicating user is selected cellular communication, the data of need transmission are sent to base station by subscriber equipment.By this scheme, because subscriber equipment can be selected communication performance parameter, preferably communication pattern and other subscriber equipmenies communicate, therefore, subscriber equipment is with this preferably when communication pattern communicates, can improve the traffic rate of subscriber equipment, the communication pattern of optimizing user equipment, thus optimize the communication pattern of whole network.
Embodiment tetra-
As shown in Figure 6, the embodiment of the present invention provides a kind of subscriber equipment 1, comprises processor 13, transmitter 14, receiver 15 and memory 16, wherein,
Control and processing center that processor 13 is subscriber equipment, be stored in the software program in memory 16 by operation, and call and process the data that are stored in memory 16, carry out receiving and transmitting signal thereby control subscriber equipment, and realize other functions of subscriber equipment.
Transmitter 14 network equipment such as can be used for to base station and sends upward signal, and especially, if when subscriber equipment needs and other subscriber equipmenies communicate, transmitter 14 can send the call request message of this subscriber equipment to other subscriber equipmenies.
Receiver 15 can be used for receiving the downstream signal from network equipments such as base stations, especially, if when other subscriber equipmenies need and this subscriber equipment communicates, receiver 15 can receive the call request message from other subscriber equipmenies.
Memory 16 can be used for storing software program and data, to make processor 13 to be stored in the software program in memory 16 by operation, thereby realizes receiving and transmitting signal and other functions of subscriber equipment.
In the embodiment of the present invention, described subscriber equipment 1 can be the mobile subscriber equipments such as mobile phone, automobile telephone.
Processor 13, for obtaining the D2D communication performance parameter of described subscriber equipment 1 to second subscriber equipment, and obtain comparative result, described comparative result is that described processor 13 obtains described subscriber equipment 1 after the cellular communication performance parameter of base station, described processor 13 judges whether described D2D communication performance parameter is better than after described cellular communication performance parameter, described processor 13 generates, or, described comparative result is that transmitter 14 sends SRS and described D2D communication performance parameter to described base station, described base station obtains described cellular communication performance parameter according to described SRS, described base station judges whether described D2D communication performance parameter is better than after described cellular communication performance parameter, described base station is returned.
Described transmitter 14, needs the data of transmission to described the second subscriber equipment for indicating described subscriber equipment 1 to select D2D when communication when described comparative result, sending; In the time that described comparative result indicates described subscriber equipment 1 to select cellular communication, send the described data of transmission that need to described base station.
Further, described transmitter 14, specifically for sending the first reference signal to described the second subscriber equipment, to make described the second subscriber equipment obtain described D2D communication performance parameter according to described the first reference signal;
Receiver 15, specifically for receiving the described D2D communication performance parameter from described the second subscriber equipment, and deposits described D2D communication performance parameter in memory 16 in.
The subscriber equipment 1 providing corresponding to the embodiment of the present invention obtains another method of the D2D communication performance parameter of subscriber equipment 1 to second subscriber equipment:
Described receiver 15, for receiving the second reference signal from described the second subscriber equipment.
Described processor 13, for obtaining the described D2D communication performance parameter of described subscriber equipment 1 to described the second subscriber equipment according to described the second reference signal.
Further, described transmitter 14, specifically for sending described SRS to described base station, to make described base station obtain described cellular communication performance parameter according to described SRS;
Described receiver 15, specifically for receiving the described cellular communication performance parameter from described base station, and deposits described cellular communication performance parameter in memory 16 in.
It should be noted that, processor 13 recalls described D2D communication performance parameter and described cellular communication performance parameter from memory 16, and more described D2D communication performance parameter and described cellular communication performance parameter, processor 13 judges whether described D2D communication performance parameter is better than after described cellular communication performance parameter, processor 13 generates corresponding comparative result, and this comparative result is deposited in memory 16, when described subscriber equipment 1 and described the second subscriber equipment are communicated, processor 13 recalls the comparative result in memory 16, with indicator-transmitter 14, the data of need transmission are sent to described the second subscriber equipment or described base station.
Further, described D2D communication performance parameter can comprise transmitting power, transmission channel quality or the message transmission rate of described first user equipment, and/or described cellular communication performance parameter can comprise transmitting power, transmission channel quality or the message transmission rate of described subscriber equipment 1.
Further, whether described D2D communication performance parameter is better than described cellular communication performance parameter and can comprises:
Whether described subscriber equipment 1 is less than the transmitting power of described subscriber equipment 1 to described base station to the transmitting power of described the second subscriber equipment,
Or described subscriber equipment 1 is to the whether transmission channel quality to described base station higher than described subscriber equipment 1 of the transmission channel quality of described the second subscriber equipment,
Or whether described subscriber equipment 1 is greater than the message transmission rate of described subscriber equipment 1 to described base station to the message transmission rate of described the second subscriber equipment.
The embodiment of the present invention provides a kind of subscriber equipment, by first obtaining the device-to-device D2D communication performance parameter of subscriber equipment to the second subscriber equipment, then subscriber equipment obtains comparative result, comparative result is that subscriber equipment obtains subscriber equipment after the cellular communication performance parameter of base station, subscriber equipment judges whether D2D communication performance parameter is better than after cellular communication performance parameter, subscriber equipment generates, or, comparative result is that subscriber equipment transmitting channel detection reference signal SRS and D2D communication performance parameter are to base station, base station obtains cellular communication performance parameter according to SRS, base station judges whether D2D communication performance parameter is better than after cellular communication performance parameter, base station is back to subscriber equipment, finally in the time that comparative result equipment for indicating user is selected D2D communication, the data of need transmission are sent to the second subscriber equipment by subscriber equipment, in the time that comparative result equipment for indicating user is selected cellular communication, the data of need transmission are sent to base station by subscriber equipment.By this scheme, because subscriber equipment can be selected communication performance parameter, preferably communication pattern and other subscriber equipmenies communicate, therefore, subscriber equipment is with this preferably when communication pattern communicates, can improve the traffic rate of subscriber equipment, the communication pattern of optimizing user equipment, thus optimize the communication pattern of whole network.
The transmitting power that the D2D communication performance parameter providing taking the embodiment of the present invention and cellular communication performance parameter are first user equipment is example, as shown in Figure 7, exemplary, if the transmitting power of first user equipment 1 to second subscriber equipment 2 is 20 watts, first user equipment 1 to the transmitting power of base station 3 is 10 watts, and second subscriber equipment 2 to the transmitting power of base station 3 be 40 watts, when the communication means that embodiment of the present invention provides is applied in communication system, comprising:
For first user equipment 1, because the transmitting power of first user equipment 1 to second subscriber equipment 2 is 20 watts, first user equipment 1 to the transmitting power of base station 3 is 10 watts, the communication means providing according to the embodiment of the present invention, first user equipment 1 selects preferably cellular communication and the second subscriber equipment 2 to communicate, be that the data of need transmission are sent to base station 3 by first user equipment 1, so that base station 3 is by this data retransmission to the second subscriber equipment 2.
For the second subscriber equipment 2, because the second subscriber equipment 2 to the transmitting power of first user equipment 1 is 20 watts, the second subscriber equipment 2 to the transmitting power of base station 3 is 40 watts, the communication means providing according to the embodiment of the present invention, the second subscriber equipment 2 selects preferably D2D communication to communicate with first user equipment 1, and the data of need transmission are directly sent to first user equipment 1 by the second subscriber equipment 2.
It is only exemplary that above-mentioned subscriber equipment is selected the process of communication pattern, in practical communication process, subscriber equipment can according to D2D communication performance parameter and cellular communication performance parameter select for own itself preferably a kind of pattern come to communicate with other subscriber equipmenies, like this, can improve the traffic rate of subscriber equipment, the communication pattern of optimizing user equipment, thus optimize the communication pattern of whole network.
Those skilled in the art can be well understood to, for convenience and simplicity of description, only be illustrated with the division of above-mentioned each functional module, in practical application, can above-mentioned functions be distributed and completed by different functional modules as required, be divided into different functional modules by the internal structure of device, to complete all or part of function described above.The system of foregoing description, the specific works process of device and unit, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.
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 module or unit, be only that a kind of logic function is divided, when actual realization, can have other dividing mode, for example multiple unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
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 multiple network element.Can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme.
In addition, the 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 also can be integrated in a unit two or more 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 described integrated unit is realized and during as production marketing independently or use, can be stored in a computer read/write memory medium using the form of SFU software functional unit.Based on such understanding, the all or part of of the part that technical scheme of the present invention contributes to prior art in essence in other words or 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 (can be personal computers in order to make a computer equipment, server, or the network equipment etc.) or processor (processor) carry out all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), the various media that can be program code stored such as random access memory (RAM, Random Access Memory), magnetic disc or CD.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being 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 described claim.

Claims (10)

1. a communication means, is characterized in that, comprising:
First user equipment obtains the device-to-device D2D communication performance parameter of described first user equipment to the second subscriber equipment;
Described first user equipment obtains comparative result, described comparative result is that described first user equipment obtains described first user equipment after the cellular communication performance parameter of base station, described first user equipment judges whether described D2D communication performance parameter is better than after described cellular communication performance parameter, described first user equipment generates, or, described comparative result is that described first user equipment transmitting channel detection reference signal SRS and described D2D communication performance parameter are to described base station, described base station obtains described cellular communication performance parameter according to described SRS, described base station judges whether described D2D communication performance parameter is better than after described cellular communication performance parameter, described base station is back to described first user equipment,
In the time that described comparative result indicates described first user equipment to select D2D communication, the data of need transmission are sent to described the second subscriber equipment by described first user equipment;
In the time that described comparative result indicates described first user equipment to select cellular communication, the described data that need transmission are sent to described base station by described first user equipment.
2. communication means according to claim 1, is characterized in that, described first user equipment obtains described first user equipment and specifically comprises to the method for the device-to-device D2D communication performance parameter of the second subscriber equipment:
Described first user equipment sends the first reference signal to described the second subscriber equipment, to make described the second subscriber equipment obtain described D2D communication performance parameter according to described the first reference signal;
Described first user equipment receives the described D2D communication performance parameter from described the second subscriber equipment.
3. communication means according to claim 1 and 2, is characterized in that, described first user equipment obtains described first user equipment and specifically comprises to the method for the cellular communication performance parameter of base station:
Described first user equipment sends described SRS to described base station, to make described base station obtain described cellular communication performance parameter according to described SRS;
Described first user equipment receives the described cellular communication performance parameter from described base station.
4. according to the communication means described in claim 1-3 any one, it is characterized in that, described D2D communication performance parameter comprises transmitting power, transmission channel quality or the message transmission rate of described first user equipment, and/or described cellular communication performance parameter comprises transmitting power, transmission channel quality or the message transmission rate of described first user equipment.
5. according to the communication means described in claim 1-4 any one, it is characterized in that, whether described D2D communication performance parameter is better than described cellular communication performance parameter specifically comprises:
Whether described first user equipment is less than the transmitting power of described first user equipment to described base station to the transmitting power of described the second subscriber equipment, or,
Described first user equipment is to the whether transmission channel quality to described base station higher than described first user equipment of the transmission channel quality of described the second subscriber equipment, or,
Whether described first user equipment is greater than the message transmission rate of described first user equipment to described base station to the message transmission rate of described the second subscriber equipment.
6. a subscriber equipment, is characterized in that, comprising:
Processing unit, for obtaining the D2D communication performance parameter of described subscriber equipment to the second subscriber equipment, and obtain comparative result, described comparative result is that described processing unit obtains described subscriber equipment after the cellular communication performance parameter of base station, described processing unit judges whether described D2D communication performance parameter is better than after described cellular communication performance parameter, described processing unit generates, or, described comparative result is that transmitting element sends SRS and described D2D communication performance parameter extremely behind described base station, described base station obtains described cellular communication performance parameter according to described SRS, described base station judges whether described D2D communication performance parameter is better than after described cellular communication performance parameter, described base station is returned,
Described transmitting element, when indicate described subscriber equipment to select D2D communication when described comparative result, sends and needs the data of transmission to described the second subscriber equipment; In the time that described comparative result indicates described subscriber equipment to select cellular communication, send the described data of transmission that need to described base station.
7. subscriber equipment according to claim 6, is characterized in that,
Described transmitting element, specifically for sending the first reference signal to described the second subscriber equipment, to make described the second subscriber equipment obtain described D2D communication performance parameter according to described the first reference signal;
Receiving element, specifically for receiving the described D2D communication performance parameter from described the second subscriber equipment.
8. according to the subscriber equipment described in claim 6 or 7, it is characterized in that,
Described transmitting element, specifically for sending described SRS to described base station, to make described base station obtain described cellular communication performance parameter according to described SRS;
Described receiving element, specifically for receiving the described cellular communication performance parameter from described base station.
9. according to the subscriber equipment described in claim 6-8 any one, it is characterized in that, described D2D communication performance parameter comprises transmitting power, transmission channel quality or the message transmission rate of described subscriber equipment, and/or described cellular communication performance parameter comprises transmitting power, transmission channel quality or the message transmission rate of described subscriber equipment.
10. according to the subscriber equipment described in claim 6-9 any one, it is characterized in that, whether described D2D communication performance parameter is better than described cellular communication performance parameter specifically comprises:
Whether described subscriber equipment is less than the transmitting power of described subscriber equipment to described base station to the transmitting power of described the second subscriber equipment, or,
Described subscriber equipment is to the whether transmission channel quality to described base station higher than described subscriber equipment of the transmission channel quality of described the second subscriber equipment, or,
Whether described subscriber equipment is greater than the message transmission rate of described subscriber equipment to described base station to the message transmission rate of described the second subscriber equipment.
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Application publication date: 20140716