CN105379367A

CN105379367A - Transmitting power control method and device

Info

Publication number: CN105379367A
Application number: CN201480001640.2A
Authority: CN
Inventors: 黎超; 张兴炜
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-03-05
Filing date: 2014-03-05
Publication date: 2016-03-02
Anticipated expiration: 2034-03-05
Also published as: CN105379367B; WO2015131357A1

Abstract

A transmitting power control method and device, the method comprising: a first user device determining a transmitting power at the time when the first user device sends data to a second user device; and the first user device using the transmitting power to send data to the second user device. The effect is achieved that the transmitting power of the first user device is controlled in a D2D (Device to Device) communication mode.

Description

Transmitting power control method and device

Transmission power control method and apparatus

The present embodiments relate to the communication technology, more particularly to a kind of transmission power control method and apparatus for technical field.Background technology is continued to develop with the communication technology, and data transfer closely is needed between increasing user equipment, is all typical short-range communication such as carrying out the shared of data, mutual blit piece, business card.

Device-to-device（Device to Device, abbreviation D2D) technology is a kind of equipment under mobile network's control and the communication technology of data directly exchanged between equipment.During implementing, the first user equipment carries out immediate data transmission using the resource of frequency range of cellular communications networks with second user equipment.In existing D2D communication process, the first user equipment is in order to ensure that the data sent can receive the second user equipment in 1.7 kilometers, and the first user equipment needs to send data to second user equipment using maximum transmission power.

However, due to that can not be controlled in the prior art to the transmission power of the first user equipment under D2D communication patterns so that when the first user equipment uses maximum transmission power to second user equipment transmission data, produce unnecessary interference.The content of the invention embodiment of the present invention provides a kind of transmission power control method and apparatus, to control the transmission power of user equipment under D2D communication patterns.

In a first aspect, the embodiment of the present invention provides a kind of user equipment, the user equipment is the first user equipment, including：

Determining module, for determining the first user equipment to transmission power during second user equipment transmission data；

Data transmission blocks, for sending data to the second user equipment using the transmission power.With reference in a first aspect, in the first possible implementation of first aspect, the determining module specifically for：Determine the first user equipment to transmission power during second user equipment transmission data according to type of traffic； Wherein, the type of traffic includes public safety urgency traffic and the safe general service of not common, the corresponding transmission power of the public safety urgency traffic is the first emitting power grade, the corresponding transmission power of the safe general service of not common is the second emitting power grade, and first emitting power grade is higher than second emitting power grade.

With reference to the first possible implementation of first aspect, in second of possible implementation of first aspect, the safe general service of not common includes the general service of different service quality rank, second emitting power grade includes multiple sub- grades of second transmission power, and the corresponding sub- grade of second transmission power of the general service is corresponding with the service quality of the general service.

With reference in a first aspect, in the third possible implementation of first aspect, the determining module specifically for：Determine the first user equipment to transmission power during second user equipment transmission data according to communication traffic patterns；

Wherein, the communication traffic patterns include normal mode communication, make a concession pattern communication and jamming pattern communication.

With reference to the third possible implementation of first aspect, in the 4th kind of possible implementation of first aspect, also include, judge module, before the transmission power when the determining module determines that the first user equipment sends data to second user equipment according to communication traffic patterns

It is determined that sending the available channel of data to second user equipment；

Judge whether the available channel is occupied, if not, it is the normal communication mode to determine the communication traffic patterns, if, whether judge to run in occupied channel is public safety urgency traffic, if so, determining that the communication traffic patterns are the yielding pattern communication, if it is not, determining that the communication traffic patterns communicate for the jamming pattern.

With reference to the 4th kind of possible implementation of first aspect, in the 5th kind of possible implementation of first aspect, the determining module specifically for：

Under normal mode communication, determined according to type of traffic to transmission power during second user equipment transmission data, and data are sent to the second user equipment on unappropriated available channel；Or

Under the yielding pattern communication, it is determined that being less than transmission power when first user equipment sends data when carrying out public safety urgency traffic to second user equipment to transmission power during second user equipment transmission data；Or

Under jamming pattern communication, determined according to the disturbance regime of the available channel to described second User equipment sends transmission power during data.

With reference to first aspect, first aspect the first to the 5th kind of any possible implementation, in the 6th kind of possible implementation of first aspect, in addition to：Request sending module and receiving module；The request sending module, for when first user equipment is located at mobile communications network overlay area, to base-station transmitting-power request message, the power request message includes the channel use information that first user equipment is obtained, so that the base station determines the transmission power of first user equipment according to the channel use information；

The receiving module, for receiving the power response message that the base station is sent, the power response message includes the transmission power of first user equipment；

The determining module is additionally operable to, if the transmission power of determining module determination is different from the transmission power that the base station is determined, determines that the transmission power that the base station is determined is to transmission power during second user equipment transmission data.

With reference to first aspect, first aspect the first to the 6th kind of any possible implementation, in the 7th kind of possible implementation of first aspect, in addition to：Information sending module, for the transmission power and/or the network coverage information of first user equipment used to second user equipment transmission first user equipment, so that the second user equipment determines transmission power.

Second aspect, the embodiment of the present invention provides a kind of user equipment, and the user equipment is second user equipment, including：

Receiving module, the network coverage information for receiving first user equipment that the first user equipment is sent；

Determining module, the network coverage information for the network coverage information according to first user equipment and the second user equipment determines the second user equipment to transmission power during first user equipment transmission data.

With reference to second aspect, in the first possible implementation of second aspect, the determining module, including：

Status determining unit, the network coverage information for the network coverage information according to first user equipment and the second user equipment determines mobile network's covering state of first user equipment and the second user equipment；

Power determining unit, for covering state according to the mobile network of first user equipment and the second user equipment, determines the second user equipment to hair during first user equipment transmission data Penetrate power；

Wherein, mobile network's covering state of first user equipment and the second user equipment includes any of following form：

First user equipment and the second user equipment are located at mobile network overlay area；First user equipment and the second user equipment are not located at mobile network overlay area；First user equipment is located at mobile network overlay area, and the second user equipment is not located at mobile network overlay area；

First user equipment is not located at mobile network overlay area, and the second user equipment is located at mobile network overlay area.

With reference to the first possible implementation of second aspect, in second of possible implementation of second aspect, when the status determining unit determines that first user equipment and the second user equipment are located at mobile network overlay area, when first user equipment and the second user equipment are serviced by first base station, the power determining unit specifically for：

To the first base station transmission power adjustment information, the power adjustment message is used for the transmission power and/or running time-frequency resource for indicating that the first base station adjusts first user equipment, and the second user equipment transmission power and/or running time-frequency resource；

The power adjustment response message that the first base station is sent is received, adjusting response message according to the power determines the second user equipment to transmission power during the first user equipment transmission data.

With reference to the first possible implementation of second aspect, in the third possible implementation of second aspect, when the status determining unit determines that first user equipment and the second user equipment are located at mobile network overlay area, the second user equipment is serviced by the second base station, when first user equipment is serviced by the 3rd base station, the power determining unit specifically for：

To the second base station transmitting power adjustment information, the power adjustment message is used for the transmission power and/or running time-frequency resource for indicating that second base station adjusts first user equipment, and indicating second base station and the 3rd base station communication so that the 3rd base station is adjusted to the transmission power and/or running time-frequency resource of first user equipment；

The power adjustment response message that second base station is sent is received, adjusting response message according to the power determines the second user equipment to transmission power during the first user equipment transmission data.

With reference to the first possible implementation of second aspect, in the 4th kind of possible implementation of second aspect, when the status determining unit determines that first user equipment and the second user equipment are equal Not be located at mobile network overlay area when, the power determining unit specifically for：

Determined according to type of traffic or communication traffic patterns to transmission power during first user equipment transmission data.

With reference to the first possible implementation of second aspect, in the 5th kind of possible implementation of second aspect, when the status determining unit determines that first user equipment is not located at mobile network overlay area, the second user equipment be located at mobile network overlay area when, the power determining unit specifically for：

Obtain the transmission power that first user equipment is used；

The measurement transmission power for the first user equipment that the transmission power used according to first user equipment and the second user device measuring are obtained, determines first user equipment to path loss during second user equipment transmission data；

According to the receiving sensitivity of the path loss and first user equipment, the limited transmission power of the second user equipment is determined；

According to the limited transmission power, determine the second user equipment to transmission power during first user equipment transmission data.

With reference to the 5th kind of possible implementation of second aspect, in the 6th kind of possible implementation of second aspect, the power determining unit also particularly useful for：

The limited transmission power is sent to the second base station, second base station services the second user equipment；

Receive the second user equipment that second base station sends to the first user equipment send data when transmission power.

With reference to the 5th kind of possible implementation of second aspect, in the 7th kind of possible implementation of second aspect, the power determining unit also particularly useful for：

The limited transmission power and the limited running time-frequency resource of the second user equipment are sent to the second base station, second base station services the second user equipment；

Receive the second user equipment that second base station sends to the first user equipment send data when transmission power and running time-frequency resource that second base station is the second user device configuration.

With reference to the 5th kind of possible implementation of second aspect, in the 8th kind of possible implementation of second aspect, the power determining unit also particularly useful for：

The transmission power according to workable for current communications traffic determines present channel； Transmission power and the limited transmission power according to workable for present channel, determine the second user equipment to transmission power during first user equipment transmission data.

With reference to the 5th kind to the 8th kind any possible implementation of second aspect, in the 9th kind of possible implementation of second aspect, determining that first user equipment is not located at mobile network overlay area when the status determining unit, when the second user equipment is located at mobile network overlay area, the power determining unit is additionally operable to：

Workable transmission power, the second user equipment allow on channel corresponding with second base station communication transmission power and the limited transmission power are obtained, second base station services the second user equipment；

Transmission power and the limited transmission power that transmission power, the second user equipment according to workable on the channel corresponding with second base station communication allow, determine the second user equipment to the transmission power during transmission data of second base station.

With reference to the first possible implementation of second aspect, in the tenth kind of possible implementation of second aspect, when the state determining module determines that the first user equipment is located at mobile network overlay area, the second user equipment not be located at mobile network overlay area when, the power determining unit specifically for：To the first user equipment transmitting power adjustment information or transmission resources adjustment information；

Transmission power after being adjusted according to first user equipment or the transmission resources after adjustment, determine the second user equipment to transmission power during first user equipment transmission data.

The third aspect, the embodiment of the present invention provides a kind of transmission power control method, including：

First user equipment determines the first user equipment to transmission power during second user equipment transmission data；

First user equipment sends data using the transmission power to the second user equipment.With reference to the third aspect, in the first possible implementation of the third aspect, first user equipment determines the first user equipment to transmission power during second user equipment transmission data, including：

First user equipment determines the first user equipment to transmission power during second user equipment transmission data according to type of traffic；

Wherein, the type of traffic includes public safety urgency traffic and the safe general service of not common, the corresponding transmission power of the public safety urgency traffic is the first emitting power grade, the corresponding transmission power of the safe general service of not common is the second emitting power grade, and first emitting power grade is higher than second emitting power grade. With reference to the first possible implementation of the third aspect, in second of possible implementation of the third aspect, the safe general service of not common includes the general service of different service quality rank, second emitting power grade includes multiple sub- grades of second transmission power, and the corresponding sub- grade of second transmission power of the general service is corresponding with the service quality of the general service.

With reference to the third aspect, in the third possible implementation of the third aspect, first user equipment determines the first user equipment to transmission power during second user equipment transmission data, including：

First user equipment determines the first user equipment to transmission power during second user equipment transmission data according to communication traffic patterns；

With reference to the third possible implementation of the third aspect, in the 4th kind of possible implementation of the third aspect, first user equipment according to communication traffic patterns determine the first user equipment to second user equipment send data when transmission power before, in addition to：

First user equipment determines to send the available channel of data to second user equipment；

First user equipment judges whether the available channel is occupied, if not, first user equipment determines that the communication traffic patterns are the normal communication mode, if, whether what first user equipment judged to run in occupied channel is public safety urgency traffic, if, first user equipment determines that the communication traffic patterns are the yielding pattern communication, if it is not, first user equipment determines that the communication traffic patterns communicate for the jamming pattern.

With reference to the 4th kind of possible implementation of the third aspect, in the 5th kind of possible implementation of the third aspect, first user equipment determines the first user equipment to transmission power during second user equipment transmission data according to communication traffic patterns, including：

Under normal mode communication, first user equipment is determined to transmission power during second user equipment transmission data according to type of traffic, and sends data to the second user equipment on unappropriated available channel；Or

Under the yielding pattern communication, first user equipment determines to be less than transmission power when first user equipment sends data when carrying out public safety urgency traffic to second user equipment to transmission power during second user equipment transmission data；Or

Under jamming pattern communication, first user equipment is determined to transmission power during second user equipment transmission data according to the disturbance regime of the available channel. With reference to the third aspect, the third aspect the first to the 5th kind of any possible implementation, in the 6th kind of possible implementation of the third aspect, when first user equipment is located at mobile communications network overlay area, first user equipment is to base-station transmitting-power request message, the power request message includes the channel use information that first user equipment is obtained, so that the base station determines the transmission power of first user equipment according to the channel use information；

First user equipment receives the power response message that the base station is sent, and the power response message includes the transmission power of first user equipment；

If first user equipment determines that the transmission power that first user equipment is determined is different from the transmission power that the base station is determined, first user equipment determines that the transmission power that the base station is determined is to transmission power during second user equipment transmission data.

With reference to the third aspect, the third aspect the first to the 6th kind of any possible implementation, in the 7th kind of possible implementation of the third aspect, methods described also includes：

Transmission power and/or the network coverage information of first user equipment that first user equipment is used to second user equipment transmission first user equipment, so that the second user equipment determines transmission power.

Fourth aspect, the embodiment of the present invention provides a kind of transmission power control method, including：

Second user equipment receives the network coverage information for first user equipment that the first user equipment is sent；

The second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the network coverage information of first user equipment and the network coverage information of the second user equipment.

With reference to fourth aspect, in the first possible implementation of fourth aspect, the second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the network coverage information of first user equipment and the network coverage information of the second user equipment, including:The second user equipment determines that the mobile network of first user equipment and the second user equipment covers state according to the network coverage information of first user equipment and the network coverage information of the second user equipment；

The second user equipment covers state according to the mobile network of first user equipment and the second user equipment, determines the second user equipment to transmission power during first user equipment transmission data； Wherein, mobile network's covering state of first user equipment and the second user equipment includes any of following form：

With reference to the first possible implementation of fourth aspect, in second of possible implementation of fourth aspect, the second user equipment covers state according to the mobile network of first user equipment and the second user equipment, the second user equipment is determined to transmission power during first user equipment transmission data, including：

When the second user equipment determines that first user equipment and the second user equipment are located at mobile network overlay area, when first user equipment and the second user equipment are serviced by first base station, the second user equipment is to the first base station transmission power adjustment information, the power adjustment message is used for the transmission power and/or running time-frequency resource for indicating that the first base station adjusts first user equipment, and the second user equipment transmission power and/or running time-frequency resource；

The second user equipment receives the power adjustment response message that the first base station is sent, and adjusting response message according to the power determines the second user equipment to transmission power during the first user equipment transmission data.

With reference to the first possible implementation of fourth aspect, in the third possible implementation of fourth aspect, the second user equipment covers state according to the mobile network of first user equipment and the second user equipment, the second user equipment is determined to transmission power during first user equipment transmission data, including：

When the second user equipment determines that first user equipment and the second user equipment are located at mobile network overlay area, the second user equipment is serviced by the second base station, when first user equipment is serviced by the 3rd base station, the second user equipment is to the second base station transmitting power adjustment information, the power adjustment message is used for the transmission power and/or running time-frequency resource for indicating that second base station adjusts first user equipment, and indicate second base station and the 3rd base station communication, so that the 3rd base station is adjusted to the transmission power and/or running time-frequency resource of first user equipment； The second user equipment receives the power adjustment response message that second base station is sent, and adjusting response message according to the power determines the second user equipment to transmission power during the first user equipment transmission data.

With reference to the first possible implementation of fourth aspect, in the 4th kind of possible implementation of fourth aspect, the second user equipment covers state according to the mobile network of first user equipment and the second user equipment, the second user equipment is determined to transmission power during first user equipment transmission data, including：

When the second user equipment determines that first user equipment and the second user equipment are not located at mobile network overlay area, the second user equipment is determined to transmission power during first user equipment transmission data according to type of traffic or communication traffic patterns.

With reference to the first possible implementation of fourth aspect, in the 5th kind of possible implementation of fourth aspect, the second user equipment covers state according to the mobile network of first user equipment and the second user equipment, the second user equipment is determined to transmission power during first user equipment transmission data, including：

When the second user equipment determines that first user equipment is not located at mobile network overlay area, when the second user equipment is located at mobile network overlay area, the second user equipment obtains the transmission power that first user equipment is used；

The measurement transmission power for the first user equipment that the transmission power and the second user device measuring that the second user equipment is used according to first user equipment are obtained, determines first user equipment to path loss during second user equipment transmission data；

The second user equipment determines the limited transmission power of the second user equipment according to the receiving sensitivity of the path loss and first user equipment；

The second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the limited transmission power.

With reference to the 5th kind of possible implementation of fourth aspect, in the 6th kind of possible implementation of fourth aspect, the second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the limited transmission power, including：

The second user equipment sends the limited transmission power to the second base station, and second base station services the second user equipment；

The second user equipment that the second user equipment receives the second base station transmission is used to first Family equipment sends transmission power during data.

With reference to the 5th kind of possible implementation of fourth aspect, in the 7th kind of possible implementation of fourth aspect, the second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the limited transmission power, including：

The second user equipment sends the limited transmission power and the limited running time-frequency resource of the second user equipment to the second base station, and second base station services the second user equipment；

The second user equipment receive the second user equipment that second base station sends to the first user equipment send data when transmission power and running time-frequency resource that second base station is the second user device configuration.

With reference to the 5th kind of possible implementation of fourth aspect, in the 8th kind of possible implementation of fourth aspect, the second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the limited transmission power, including：

Second user equipment transmission power according to workable for current communications traffic determines present channel；The second user equipment transmission power and limited transmission power according to workable for present channel, determine the second user equipment to transmission power during first user equipment transmission data.

With reference to the 5th kind to the 8th kind any possible implementation of fourth aspect, in the 9th kind of possible implementation of fourth aspect, first user equipment is not located at mobile network overlay area, when the second user equipment is located at mobile network overlay area, methods described also includes：

The second user equipment obtains the transmission power and the limited transmission power that workable transmission power, the second user equipment allow on channel corresponding with second base station communication, and second base station services the second user equipment；

Transmission power and the limited transmission power that the second user equipment transmission power, second user equipment according to workable on the channel corresponding with second base station communication allow, determine the second user equipment to the transmission power during transmission data of second base station.

With reference to the first possible implementation of fourth aspect, in the tenth kind of possible implementation of fourth aspect, the second user equipment covers state according to the mobile network of first user equipment and the second user equipment, the second user equipment is determined to transmission power during first user equipment transmission data, including：

When the second user equipment determines that first user equipment is located at mobile network overlay area, when the second user equipment is not located at mobile network overlay area, the second user equipment is to described first User equipment transmitting power adjustment information or transmission resources adjustment information；

The second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the transmission power after first user equipment adjustment or the transmission resources after adjustment.

In the present embodiment, determine the first user equipment to transmission power during second user equipment transmission data by determining module, data transmission blocks send data using the transmission power to the second user equipment, realizing can be under D2D communication pattern, the first UE transmission power is controlled, rather than uses intrinsic maximum transmission power.Brief description of the drawings is in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation of the first user equipment embodiment one of the invention；

Fig. 2 is the structural representation of the first user equipment embodiment two of the invention；

Fig. 3 is the structural representation of the first user equipment embodiment three of the invention；

Fig. 4 is the structural representation of the first user equipment example IV of the invention；

Fig. 5 is the structural representation of second user apparatus embodiments one of the present invention；

Fig. 6 is the structural representation of second user apparatus embodiments two of the present invention；

Fig. 7 is that user equipment mobile network covers view；

Fig. 8 is the schematic flow sheet of transmission power control embodiment of the method one of the present invention；

Fig. 9 is the schematic flow sheet of transmission power control embodiment of the method two of the present invention；

Figure 10 is the schematic flow sheet of transmission power control embodiment of the method three of the present invention；

Figure 11 is the structural representation of the first user equipment embodiment five of the invention；

Figure 12 is the structural representation of second user apparatus embodiments three of the present invention.Embodiment is carried out below in conjunction with the accompanying drawing in the embodiment of the present invention to the technical scheme in the embodiment of the present invention Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

Fig. 1 is the structural representation of the first user equipment embodiment one of the invention.The first user equipment in the present embodiment can be arbitrary user equipment, and for the ease of description, the user equipment is referred to as into the first user equipment.First user equipment 10 provided in an embodiment of the present invention includes determining module 101 and data transmission blocks 102.Wherein,

Determining module 101, for determining the first user equipment to transmission power during second user equipment transmission data；

Data transmission blocks 102, for sending data to the second user equipment using the transmission power.

In practical application scene, the first user equipment that the present embodiment is related to（User Equipment, abbreviation UE) be D2D communication scenes in user equipment.First UE can be by way of unicast, multicast or broadcast to the 2nd UE transmission data, and the 2nd UE can also be by way of unicast, multicast or broadcast to the first UE transmission data, so as to realize the first UE and the 2nd UE D2D communications.It will be appreciated by those skilled in the art that, in the present embodiment, it is every to be related to the process that the first UE sends data to the 2nd UE, can be unicast, multicast or broadcast, it is related to the process that the 2nd UE sends data to the first UE, or unicast, multicast or broadcast.

When the first UE needs to send data to the 2nd UE, determining module 101 is it needs to be determined that transmission power when sending the data.During implementing, determining module 101 can determine transmission power according to type of traffic or communication traffic patterns.For example, when type of traffic is public safety urgency traffic, determining module 101 determines that transmission power is the first emitting power grade, and specifically, the first emitting power grade can correspond to the first UE maximum transmission power；When type of traffic general service safe for not common, determining module 101 determines that transmission power is the second emitting power grade.Wherein, the first emitting power grade is higher than the second power transmission levels.

Data transmission blocks 102 send data using the transmission power to the second user equipment.In the present embodiment, determine the first user equipment to transmission power during second user equipment transmission data by determining module, data transmission blocks send data using the transmission power to the second user equipment, realizing can be under D2D communication pattern, the first UE transmission power is controlled, rather than uses intrinsic maximum transmission power. Specific embodiment is used below, illustrates that the first UE determining module 101 determines the process of transmission power.

In a possible implementation, the determining module 101 specifically for：Determine the first user equipment to transmission power during second user equipment transmission data according to type of traffic.

Wherein, the type of traffic includes public safety urgency traffic and the safe general service of not common, the corresponding transmission power of the public safety urgency traffic is the first emitting power grade, the corresponding transmission power of the safe general service of not common is the second emitting power grade, and first emitting power grade is higher than second emitting power grade.

During implementing, current D2D application scenarios mainly include public safety urgency traffic and the safe general service of not common.The safe general service of not common can be by service quality（Quality of Service, referred to as：QoS) grade is further segmented, different QoS grades, with different priority.In the present embodiment, transmission power different the first UE of different type of traffic correspondence, so that the communication service of higher grade can obtain more secure service.

Corresponding relation such as table one between public safety urgency traffic and the safe general service of not common and transmission power.

During concrete application, determining module 101 can indicate to determine type of traffic according to type of traffic；Can also be when there is the network coverage, the method that determining module 101 obtains authorization identifying by the key used to serving BS transmission public safety urgency traffic, to obtain the authority using public safety urgency traffic.It is urgency traffic configuration the first emitting power grade, the i.e. highest level of public safety when it is determined that type of traffic is public safety urgency traffic.The maximum transmission power value of the corresponding operation of first emitting power grade could be arranged to 31dBm, because in occurred events of public safety, being possible to existing means of communication can all be failed, such as earthquake field, and the cellular network that now tradition is used can not may be used.Or big scene of fire, the signal that the repeater in building may can not provide base station outside signal, building transmits not come in again., it is necessary to carry out communication each other using D2D equipment, transmission power priority is naturally highest under these scenes.For public safety urgency traffic, only sufficiently high transmission power just can guarantee that public safety urgency traffic can obtain prepreerence service, to ensure the realization of necessary communication function.Determine that type of traffic is not common in determining module 101 During the general service of safety, then the general service for not common safety configures the second emitting power grade, second emitting power grade is less than the first power transmission levels, and the maximum transmission power value of the corresponding permission of the second emitting power grade could be arranged to 23dBm.

Further, the safe general service of not common includes the general service of different service quality rank, second emitting power grade includes multiple sub- grades of second transmission power, and the corresponding sub- grade of second transmission power of general service is corresponding with the service quality of general service, such as shown in table two.

Table 2

During concrete application, determining module 101 can indicate to determine type of traffic according to type of traffic.Specifically, session service include voice, video conference, this business is to service quality and requirement of real-time highest.Stream business includes the sound of stream, video, and service quality and requirement of real-time are taken second place.And the interactive service business such as including web page browsing, background service includes Email, short message etc..Interactive service and background service are minimum to service quality and requirement of real-time.Under not common security scenario, first

UE often also has other means of communication, even if or do not have, currently also without extra-urgent communication requirement.Therefore, in such a scenario, the first UE just can be with using normal less transmission power.

Further, every kind of business can select certain transmission power level, when service quality, which can not be met, to be required, can improve transmission power with step-length under the maximum transmission power value limitation of permission.Or, directly, one UE-beginning just carrys out transmission signal by the maximum transmission power value of its corresponding permission of type of traffic.

It will be appreciated by those skilled in the art that, the corresponding transmission power of public safety urgency traffic can produce certain influence to the safe general service of not common, therefore in the case of non-essential, first UE can not use the corresponding transmission power of public safety urgency traffic, and the time that public safety urgency traffic is used needs to be subject to certain restrictions.

In another possible implementation, the first user equipment 10 provided in an embodiment of the present invention also includes judge module 103, specific as shown in Figure 2.Fig. 2 is the structural representation of the first user equipment embodiment two of the invention.

Specifically, the determining module 101 specifically for：Determine the first user equipment to transmission power during second user equipment transmission data according to communication traffic patterns； Wherein, the communication traffic patterns include normal mode communication, make a concession pattern communication and jamming pattern communication.

Judge module 103, before the transmission power when the determining module 101 determines that the first user equipment sends data to second user equipment according to communication traffic patterns,

In specific application scenarios, the channel of data is can be transmitted in the first UE, and multiple small subchannels are divided on frequency domain, and different UE understand selected section subchannel to send.In the present embodiment, the available channel being related to is specially available subchannel.Judge module 103 determines all available channels.Determining the method for available channel is：If there is the network coverage, then the indication signaling of resource is configured from Network Capture available channel；If without the network coverage, then determining the set of all available channels by predefined mode.Judge module 103 is according to the received signal power on available channel, judge whether available channel is occupied, the criterion of judgement is whether the received signal power is less than specific threshold value, such as under LTE systematic parameters, the Reference Signal Received Power on subcarrier（Reference Signal Received Power, referred to as：RSRP) it is not more than -112dBm, is then considered as available channel, is otherwise considered as occupied channel.If unappropriated available channel, judge module 103 determines that communication traffic patterns are normal communication mode.If all available channels are all occupied, judge module 103 needs further to detect whether there is public safety urgency traffic on occupied available channel in transmission, if, judge module 103 determines communication traffic patterns to make a concession pattern communication, if it is not, judge module 103 determines that communication traffic patterns communicate for jamming pattern.Judge channel whether the method taken by public safety urgency traffic, in addition to judging RSRP values, in addition it is also necessary to further receive the indication signaling that the public safety urgency traffic included in high RSRP values channel is used.Judge whether the method taken by public safety urgency traffic can also be channel：The public safety urgency traffic that each channel is read in BCCH is the indication signaling used.If receiving the indication signaling of confirmation, show there is use public safety urgency traffic in detected subchannel.Judging the method that present channel is in jamming pattern is, judge whether the RSRP values on detected channel are more than specific thresholding 1 (such as -112dBm), and less than the available RSRP values upper limit 2 (such as-lOOdBm), if meeting these conditions, show that the channel is in jamming pattern. During implementing, after judge module 103 determines specific communication traffic patterns, determining module 101 determines the first user equipment to transmission power during second user equipment transmission data according to communication traffic patterns, according to different communication traffic patterns, concrete implementation mode is as follows.

Under normal mode communication, determining module 101 determines the first user equipment to transmission power during second user equipment transmission data according to type of traffic, and sends data to second user equipment on unappropriated available channel.

Specifically, it is determined that module 101 determines the first user equipment to transmission power during second user equipment transmission data according to type of traffic, reference can be made to the description of above-described embodiment, here is omitted for the present embodiment.

In the case where making a concession pattern communication, determining module 101 determines to be less than transmission power when the first user equipment sends data when carrying out public safety urgency traffic to second user equipment to transmission power during second user equipment transmission data.

Specifically, it is determined that module 101 will try one's best without using having public safety urgency traffic in the channel used, if be not avoided that（Such as all available channels are all occupied by public safety urgency traffic）, it is determined that module 101 uses yielding pattern communication.In the case where making a concession pattern communication, determining module 101 determines to be less than transmission power when the first user equipment sends data when carrying out public safety urgency traffic to second user equipment to transmission power during second user equipment transmission data.

Under jamming pattern communication, determining module 101 is determined to transmission power during second user equipment transmission data according to the disturbance regime of available channel.

Specifically, it is determined that the available channel that module 101 will be used is being used by other UE by normal mode communication.That is, this available channel has interference, now the first UE communication business model belongs to jamming pattern communication.When jamming pattern communicates, determining module 101 can use the lower slightly transmission power that communicated than normal mode, to reduce the influence of the UE to launching data.Or, determining module 101 sets the transmission power of oneself according to the disturbance regime of available channel to be sent, to ensure that the receiver of target results in the signal of certain intensity.Wherein, disturbance regime includes interference signal intensity.

During implementing, no matter whether the first UE is located at network's coverage area, and the first UE transmission power can be determined according to above-mentioned method.

Fig. 3 is the structural representation of the first user equipment embodiment three of the invention.The embodiment of the present invention is on the basis of Fig. 1 and Fig. 2 embodiments, and the first user equipment 10 also includes：Request sending module 104 and receiving module 105.In the present embodiment, on the basis of Fig. 2 embodiments, Fig. 3 is illustrated. The request sending module 104, for when first user equipment is located at mobile communications network overlay area, to base-station transmitting-power request message, the power request message includes the channel use information that first user equipment is obtained, so that the base station determines the transmission power of first user equipment according to the channel use information；

The receiving module 105, for receiving the power response message that the base station is sent, the power response message includes the transmission power of first user equipment；

The determining module 101 is additionally operable to, if the transmission power of determining module determination is different from the transmission power that the base station is determined, determines that the transmission power that the base station is determined is to transmission power during second user equipment transmission data.

When the first user equipment is located at mobile communications network overlay area, request sending module 104 is to base station（Including various types of base station equipments, such as macro station, micro- station, slightly station, also including the relaying Relay nodes for relaying）Transmit power request message, power request message includes the channel use information of the first user equipment acquisition（Include the one or more in following information：Which channel be fully usable, and is in disturbance state for which channel（Grade comprising jamming power）, use which channel by urgency traffic）, base station determines the transmission power of the first user equipment according to channel use information.Receiving module 105 receives the power response message that base station is sent, and power response message includes the transmission power of the first user equipment；If it is determined that when module 101 determines that the transmission power that the first user equipment is determined is different from the transmission power that base station is determined, determining that the transmission power that the base station is determined is to transmission power during second user equipment transmission data.

In the present embodiment, first user equipment is by determining the first user equipment to transmission power during second user equipment transmission data, first user equipment sends data using the transmission power to the second user equipment, realizing can be under D2D communication pattern, the first UE transmission power is controlled, rather than uses intrinsic maximum transmission power.

Fig. 4 is the structural representation of the first user equipment example IV of the invention.The embodiment of the present invention is on the basis of Fig. 1 to Fig. 3 embodiments, and the first user equipment 10 also includes：Also include：Information sending module 106.The present embodiment is illustrated on the basis of Fig. 3 embodiments.

Information sending module 106, for the transmission power and/or the network coverage information of first user equipment used to second user equipment transmission first user equipment, so that the second user equipment determines transmission power.

First user equipment provided in an embodiment of the present invention, not only the first user equipment can determine launch work( Rate, can also make second user equipment determine transmission power.

Fig. 5 is the structural representation of second user apparatus embodiments one of the present invention.Second user equipment in the present embodiment can be arbitrary user equipment, and for the ease of description, the user equipment is referred to as into second user equipment.Second user equipment 20 provided in an embodiment of the present invention includes：Receiving module 201 and determining module 202.

Receiving module 201, the network coverage information for receiving first user equipment that the first user equipment is sent；

Determining module 202, the network coverage information for the network coverage information according to first user equipment and the second user equipment determines the second user equipment to transmission power during first user equipment transmission data.

The application scenarios of the present embodiment are similar with Fig. 1 embodiments, and here is omitted for the present embodiment.

Receiving module 201 receives the D2D signals that the first UE is sent.Wherein, the first UE is by sending D2D signals to the 2nd UE transmission network coverage informations.It should be noted that the signal for the D2D that the first UE is sent, sends in D2D resources, it is different from the upward signal within the network that the first UE is sent.Difference is that the resource taken during transmission is different, and signal format during transmission is different with mode.For example, in FDD（Frequency Division Duplexing, abbreviation FDD) under, the resource of D2D links is in Long Term Evolution（Long Term Evolution, abbreviation LTE) up-link in the resource taken out.In mobile cellular communication system, the first UE sends D2D signals on cellular link, is also that up, but the position of running time-frequency resource is different from upward signal.

Specifically, the 2nd UE detects existing cellular network, determines whether the machine already is resident within some network therein.As the 2nd UE is detected and resided in global system for mobile communications（Global System for Mobile communication, abbreviation GSM) network under or 3G (Third Generation) Moblie (the 3rd Generation Mobile Communication, referred to as：Under network 3G), or Long Term Evolution（Long Term Evolution, abbreviation LTE) network is inferior.Those information are the 2nd UE network coverage information.

Determining module 202 determines that the first UE and UE mobile network covers state according to the first UE network coverage information and the 2nd UE network coverage information, determining module 202 covers state according to the first UE and the 2nd UE mobile network, determines the 2nd UE to transmission power during the first UE transmission data.

Second user equipment provided in an embodiment of the present invention, the network coverage information for first user equipment that the first user equipment is sent is received by receiving module；Determining module is according to first user equipment Network coverage information and the network coverage information of the second user equipment determine the second user equipment to transmission power during first user equipment transmission data, realizing can be under D2D communication pattern, the 2nd UE transmission power is controlled, rather than uses intrinsic maximum transmission power.

Fig. 6 is the structural representation of second user apparatus embodiments two of the present invention.The present embodiment is on the basis of Fig. 5 embodiments, the determining module 202, including：

Status determining unit 2021, the network coverage information for the network coverage information according to first user equipment and the second user equipment determines mobile network's covering state of first user equipment and the second user equipment；

Power determining unit 2022, for covering state according to the mobile network of first user equipment and the second user equipment, determines the second user equipment to transmission power during first user equipment transmission data；

First UE and the 2nd UE mobile network's covering specifically can be as shown in Figure 7.Fig. 7 is that user equipment mobile network covers view.For ease of drawing, in the figure 7, in the way of UE1 to UE6, each UE is distinguished.

Wherein, the first UE and the 2nd UE mobile network's covering state includes any of following form：First UE (UE4) and the 2nd UE (UE5) is located at mobile network overlay area；

First UE (UE1) and the 2nd UE (UE3) are not located at mobile network overlay area；First UE (UE7) is located at mobile network overlay area, and the 2nd UE (UE8) is not located at mobile network overlay area；

First UE (UE1) is not located at mobile network overlay area, and the 2nd UE (UE2) is located at mobile network overlay area.

With reference to Fig. 7, and specific embodiment is used, to power determining unit 2022 according to first The network coverage information of UE network coverage information and the 2nd UE, determines that the 2nd UE is described in detail to transmission power during the first UE transmission data, including four kinds of situations.

The first situation, when status determining unit 2021 determines that the first UE (UE5) and the 2nd UE (UE4) is located at mobile network overlay area, including two kinds of possible implementations.

A kind of possible implementation, when the status determining unit 2021 determines that first user equipment and the second user equipment are located at mobile network overlay area, when first user equipment and the second user equipment are serviced by first base station, the power determining unit 2022 specifically for：

Specifically, the first UE and the 2nd UE are serviced by same base station, but the first UE and the 2nd UE belong to different D2D communication sets.2nd UE can require that first base station readjusts the first UE and/or the 2nd UE transmission powers used and/or the running time-frequency resource used, to coordinate the D2D links between two communication sets.

Alternatively possible implementation, when the status determining unit 2021 determines that first user equipment and the second user equipment are located at mobile network overlay area, the second user equipment is serviced by the second base station, when first user equipment is serviced by the 3rd base station（Not shown in Fig. 7）, the power determining unit 2022 specifically for：

Specifically, if the first UE and the 2nd UE belong to different base stations, i.e. the 2nd UE is serviced by the second base station, first UE is serviced by the 3rd base station, then the request for wanting the first UE to adjust power and/or running time-frequency resource can be issued the second base station by the 2nd UE, then the second base station passes through X2 interface, it is desirable to which the 3rd base station clothes reconfigure power and/or running time-frequency resource for the first UE. Second of situation, when status determining unit 2021 determines that the first UE (UE3) and the 2nd UE (UEl) is not located at mobile network overlay area, power determining unit 2022 according to type of traffic or communication traffic patterns specifically for determining to transmission power during the first UE transmission data.

During implementing, 2nd UE determines the implementation to transmission power during the first UE transmission data according to type of traffic or communication traffic patterns, determined with the first UE according to type of traffic or communication traffic patterns similar to the implementation of transmission power during the 2nd UE transmission data, reference can be made to above-described embodiment, here is omitted for the present embodiment.

The third situation, when the status determining unit 2021 determines that the first UE (UE1) is not located at mobile network overlay area, 2nd UE (UE2) be located at mobile network overlay area when, the power determining unit 2022 specifically for：

Obtain the transmission power that first user equipment is used；

Specifically, when the first UE is not located at mobile network overlay area, and the 2nd UE is located at mobile network overlay area, power determining unit 2022 determines that the principle of transmission power is, the 2nd UE, which tries one's best, to be avoided producing interference to the first UE.

In order to confirm whether the 2nd UE can produce interference, it is necessary to further measure and calculate the path loss between the first UE and the 2nd UE to the first UE.The method of calculating is：, it is necessary to its transmission power Ptx is indicated to the 2nd UE for receiving its transmission signal when first UE sends signal.Power determining unit 2022 is after the transmission power level Ptx information of the first UE instructions is received, power determining unit 2022 further measures the measurement transmission power Rtx from the first UE signals, and power determining unit 2022 calculates the first UE to the 2nd UE path loss（PL) it is： PL=Ptx-Rtx.Such as Ptx=23dBm, Rtx=- lOOdBm, then PL=123dB.After calculating obtains PL values, the 2nd UE also needs to calculate the limited maximum power values of UE.Assuming that the first UE minimum receiving sensitivity of D2D links is R0, then the 2nd UE transmission power is Ptx-m≤PL+R0.Such as PL=123dB, the lOdBm of R0=- 1, then Ptx-m≤13dBm.Due to 2nd UE is because the first UE D2D links will be protected, therefore, and transmission power level limited the 2nd UE is 13dBm (PL+R0).

Then, power determining unit 2022 determines the 2nd UE to transmission power during the first UE transmission data according to limited transmission power.Specifically include following possible implementation：

A kind of possible implementation, the power determining unit 2022 also particularly useful for：The limited transmission power is sent to the second base station, second base station services the second user equipment；Receive the second user equipment that second base station sends to the first user equipment send data when transmission power.

Alternatively possible implementation, the power determining unit 2022 also particularly useful for：The limited transmission power and the limited running time-frequency resource of the second user equipment are sent to the second base station, second base station services the second user equipment；Receive the second user equipment that second base station sends to the first user equipment send data when transmission power and running time-frequency resource that second base station is the second user device configuration.

Specifically, power determining unit 2022 reports limited transmission power level Ptx-m and the limited running time-frequency resource of correspondence to the second base station, and the second base station is the running time-frequency resource and/or transmission power level that the 2nd UE redistributes transmitting.For the 2nd UE D2D links, if the 2nd UE employs too small transmission power, the effect of target UE reception is influenced whether.Because the 2nd UE is within mobile network's covering, the 2nd UE can require that available D2D transmission resources are redistributed in the second base station for the 2nd UE.If the 2nd UE transmitting cellular link, a kind of mode be the 2nd UE can by require the second base station for it change running time-frequency resource avoid the first UE on network D2D link transmitting.Another way is, if the 2nd UE transmission power have adjusted, the modulation coding mode that can be supported（Modulation and Coding Scheme, abbreviation MCS) grade can also change, it is necessary to corresponding change can also occur for the running time-frequency resource number used, now need the second base station that the running time-frequency resource for transmitting is reassigned for the 2nd UE（Size and location including resource）.

Another possible implementation, the power determining unit 2022 also particularly useful for：

The transmission power according to workable for current communications traffic determines present channel；

Transmission power and the limited transmission power according to workable for present channel, determine the second user equipment to transmission power during first user equipment transmission data.

2nd UE oneself determines the transmission power that can be used.During implementing, two kinds of links can be used to be communicated for the 2nd UE.One link is D2D links（UE2-UE1), under D2D links, the 2nd UE can directly be communicated with the first UE.One is cellular link（UE2- second Base station）, under cellular link, the 2nd UE is communicated with the 2nd UE base station of serving BS second, the 2nd UE by with the second base station communication, realize the 2nd UE and other UE (such as UE6) communication.Specifically, for D2D links, transmission power Ptx workable for 2nd UE can take the corresponding present channel of current communications traffic and limited transmission power Ptx-minimum value min (Ptx, Ptx-in m are used as the transmission power of oneself, BP:Ptx=Min (Ptx_c, Ptx m), thus with the first UE communication.The benefit of this method is, it is not necessary to which eNB is further to be aided in, and reduces the process of Signalling exchange.

On the basis of above-mentioned various implementations, when the status determining unit 2021 determines that first user equipment is not located at mobile network overlay area, when the second user equipment is located at mobile network overlay area, the power determining unit 2022 is additionally operable to：Workable transmission power, the second user equipment allow on channel corresponding with second base station communication transmission power and the limited transmission power are obtained, second base station services the second user equipment；

For cellular link, the 2nd UE is from existing cellular link, and the 2nd UE is to each channel, such as physical uplink link shared channels（Physical Uplink Shared Channel, referred to as：PUSCH), Physical Uplink Control Channel（Physical Uplink Control Channel, referred to as：PUCCH), detection reference signal（Sounding Reference Signal, abbreviation SRS), it is determined that the transmission power P that each channel can be used_alpha(alpha represents one or many in PUSCH, PUCCH, SRS channels or signal here）, and the transmission power that the 2nd UE allowsMinimum value in 0^ and limited transmission power Ptx-m, i.e. Ptx=Min (P_CMAx,_e, P_alpha, Ptx m) so that using the corresponding transmission power of the minimum value and the second base station communication.

4th kind of situation, when the state determining module 2021 determine the first user equipment be located at mobile network overlay area, the second user equipment not be located at mobile network overlay area when, the power determining unit 2022 specifically for：To the first user equipment transmitting power adjustment information or transmission resources adjustment information；

Specifically, the 2nd UE can attempt to set up D2D links with the first UE, and then power determining unit 2022 requires that the first UE reconfigures transmission power or redistributes the running time-frequency resource of transmitting.This includes First UE uses the situation of D2D links or cellular link.First UE oneself can determine or the information of respective request is offered the serving BS of the machine after the 2nd UE requirement is received, and ask the serving BS of the machine to help the request for deciding whether to meet and how to meet the 2nd UE.

To sum up, second user equipment provided in an embodiment of the present invention, the network coverage information for first user equipment that the first user equipment is sent is received by receiving module；Determining module determines the second user equipment to transmission power during first user equipment transmission data according to the network coverage information of first user equipment and the network coverage information of the second user equipment, realizing can be under D2D communication pattern, the 2nd UE transmission power is controlled, rather than uses intrinsic maximum transmission power.

Fig. 8 is the schematic flow sheet of transmission power control embodiment of the method one of the present invention.The executive agent of this method is arbitrary user equipment, and the user equipment can be realized by arbitrary software and/or hardware.In the present embodiment, for the ease of description, the user equipment is called the first user equipment.As shown in figure 8, the transmission power control method that the present embodiment is provided, including：

Step 801, the first user equipment determine the first user equipment to transmission power during second user equipment transmission data；

Step 802, first user equipment send data using the transmission power to the second user equipment.

Poewr control method provided in an embodiment of the present invention, the first user equipment that can be provided by above-described embodiment realizes that its implementing principle and technical effect is similar, and here is omitted for the present embodiment.

Specific embodiment is used below, illustrates that the first UE determines the process of transmission power.

In a possible implementation, the first user equipment determines the first user equipment to transmission power during second user equipment transmission data according to type of traffic.

Wherein, type of traffic includes public safety urgency traffic and the safe general service of not common, the corresponding transmission power of public safety urgency traffic is the first emitting power grade, the corresponding transmission power of the safe general service of not common is the second emitting power grade, and the first emitting power grade is higher than the second emitting power grade.

Alternatively, the safe general service of not common includes the general service of different service quality rank, second emitting power grade includes multiple sub- grades of second transmission power, and the corresponding sub- grade of second transmission power of the general service is corresponding with the service quality of the general service.

Further, every kind of business can select certain transmission power level, when service quality, which can not be met, to be required, can improve transmission power with step-length under the maximum transmission power value limitation of permission.Or, Directly, UE-beginning just carrys out transmission signal by the maximum transmission power value of its corresponding permission of type of traffic.

In another possible implementation, first user equipment determines the first user equipment to transmission power during second user equipment transmission data according to communication traffic patterns, wherein, communication traffic patterns include normal mode communication, make a concession pattern communication and jamming pattern communication.

During implementing, before the transmission power when determining that the first user equipment sends data to second user equipment according to communication traffic patterns, communication traffic patterns are first determined.Fig. 9 is the schematic flow sheet of transmission power control embodiment of the method two of the present invention, describes the flow that the first UE determines communication traffic patterns, as shown in figure 9, method provided in an embodiment of the present invention, including：

Step 901, the first user equipment determine to send the available channel of data to second user equipment；Step 902, the first user equipment judge whether available channel is occupied, if it is not, step 903 is performed, if so, performing step 904;

Step 903, the first user equipment determine that communication traffic patterns are normal communication mode；

Whether what step 904, the first user equipment judged to run in occupied channel is public safety urgency traffic, if so, step 905 is performed, if it is not, performing step 906;

Step 905, the first user equipment determine communication traffic patterns to make a concession pattern communication；

Step 906, the first user equipment determine that communication traffic patterns communicate for jamming pattern.

Under various communication patterns, the first user equipment determines that the process of transmission power is as follows：

Under jamming pattern communication, first user equipment is determined to transmission power during second user equipment transmission data according to the disturbance regime of the available channel.

On the basis of above-described embodiment, when first user equipment is located at mobile communications network overlay area, first user equipment is to base-station transmitting-power request message, the power request message includes the channel use information that first user equipment is obtained, so that the base station determines the transmission power of first user equipment according to the channel use information； First user equipment receives the power response message that the base station is sent, and the power response message includes the transmission power of first user equipment；

On the basis of above-described embodiment, methods described also includes：

Figure 10 is the schematic flow sheet of transmission power control embodiment of the method three of the present invention.The executive agent of this method is arbitrary user equipment, and the user equipment can be realized by arbitrary software and/or hardware.In the present embodiment, for the ease of description, the user equipment is called second user equipment.As shown in Figure 10, the transmission power control method that the present embodiment is provided, including：

Step 1001, second user equipment receive the network coverage information for first user equipment that the first user equipment is sent；

Step 1002, the second user equipment determine the second user equipment to transmission power during first user equipment transmission data according to the network coverage information of first user equipment and the network coverage information of the second user equipment.

Poewr control method provided in an embodiment of the present invention, the second user equipment that can be provided by above-described embodiment realizes that its implementing principle and technical effect is similar, and here is omitted for the present embodiment.

During implementing, the second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the network coverage information of first user equipment and the network coverage information of the second user equipment, including：

The second user equipment determines that the mobile network of first user equipment and the second user equipment covers state according to the network coverage information of first user equipment and the network coverage information of the second user equipment；

The second user equipment covers state according to the mobile network of first user equipment and the second user equipment, determines the second user equipment to transmitting during first user equipment transmission data Power；

Specific embodiment is used below, to the 2nd UE according to the first UE network coverage information and the 2nd UE network coverage information, determines that the 2nd UE is described in detail to transmission power during the first UE transmission data, including four kinds of situations.

The first situation, when the 2nd UE determines that the first UE and the 2nd UE is located at mobile network overlay area, including two kinds of possible implementations.

A kind of possible implementation, when the second user equipment determines that first user equipment and the second user equipment are located at mobile network overlay area, when first user equipment and the second user equipment are serviced by first base station, the second user equipment is to the first base station transmission power adjustment information, the power adjustment message is used for the transmission power and/or running time-frequency resource for indicating that the first base station adjusts first user equipment, and the second user equipment transmission power and/or running time-frequency resource；The second user equipment receives the power adjustment response message that the first base station is sent, and adjusting response message according to the power determines the second user equipment to transmission power during the first user equipment transmission data.

Alternatively possible implementation, when the second user equipment determines that first user equipment and the second user equipment are located at mobile network overlay area, the second user equipment is serviced by the second base station, when first user equipment is serviced by the 3rd base station, the second user equipment is to the second base station transmitting power adjustment information, the power adjustment message is used for the transmission power and/or running time-frequency resource for indicating that second base station adjusts first user equipment, and indicate second base station and the 3rd base station communication, so that the 3rd base station is adjusted to the transmission power and/or running time-frequency resource of first user equipment；The second user equipment receives the power adjustment response message that second base station is sent, and adjusting response message according to the power determines the second user equipment to transmission power during the first user equipment transmission data. Second of situation, when the second user equipment determines that first user equipment and the second user equipment are not located at mobile network overlay area, the second user equipment is determined to transmission power during first user equipment transmission data according to type of traffic or communication traffic patterns.

The third situation, when the second user equipment determines that first user equipment is not located at mobile network overlay area, when the second user equipment is located at mobile network overlay area, the second user equipment obtains the transmission power that first user equipment is used；The measurement transmission power for the first user equipment that the transmission power and the second user device measuring that the second user equipment is used according to first user equipment are obtained, determines first user equipment to path loss during second user equipment transmission data；The second user equipment determines the limited transmission power of the second user equipment according to the receiving sensitivity of the path loss and first user equipment；The second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the limited transmission power.

Then, the 2nd UE determines the 2nd UE to transmission power during the first UE transmission data according to limited transmission power.Specifically include following possible implementation：

A kind of possible implementation, the second user equipment sends the limited transmission power to the second base station, and second base station services the second user equipment；

The second user equipment receive the second user equipment that second base station sends to the first user equipment send data when transmission power.

Alternatively possible implementation, the second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the limited transmission power, including：The second user equipment sends the limited transmission power and the limited running time-frequency resource of the second user equipment to the second base station, and second base station services the second user equipment；

Another possible implementation, the second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the limited transmission power, including：Second user equipment transmission power according to workable for current communications traffic determines present channel；The second user equipment transmission power and limited transmission power according to workable for present channel, determine the second user equipment to transmission power during first user equipment transmission data.

On the basis of above-mentioned possible implementation, first user equipment does not cover positioned at mobile network Cover area, when the second user equipment is located at mobile network overlay area, methods described also includes：The second user equipment obtains the transmission power and the limited transmission power that workable transmission power, the second user equipment allow on channel corresponding with second base station communication, and second base station services the second user equipment；

4th kind of situation, when the second user equipment determines that first user equipment is located at mobile network overlay area, when the second user equipment is not located at mobile network overlay area, the second user equipment is to the first user equipment transmitting power adjustment information or transmission resources adjustment information；

Figure 11 is the structural representation of the first user equipment embodiment five of the invention.The first user equipment in the present embodiment can be arbitrary user equipment, and for the ease of description, the user equipment is referred to as into the first user equipment.First user equipment 110 provided in an embodiment of the present invention includes processor 1101, transmitter 1102 and receiver 1103.Wherein,

Processor 1101, for determining the first user equipment to transmission power during second user equipment transmission data；

Transmitter 1102, for sending data to the second user equipment using the transmission power.First user equipment provided in an embodiment of the present invention, its implementing principle and technical effect are similar with the first user equipment that above-described embodiment is provided, and here is omitted.

Alternatively, the processor 1101 specifically for：

Determine the first user equipment to transmission power during second user equipment transmission data according to type of traffic；

Wherein, the type of traffic includes public safety urgency traffic and the safe general service of not common, the corresponding transmission power of the public safety urgency traffic is the first emitting power grade, the corresponding transmission power of the safe general service of not common is the second emitting power grade, and first emitting power grade is high In second emitting power grade.

Alternatively, the processor 1101 specifically for：

Determine the first user equipment to transmission power during second user equipment transmission data according to communication traffic patterns；

Alternatively, the processor 1101 is additionally operable to：Before transmission power when determining that the first user equipment sends data to second user equipment according to communication traffic patterns, first user equipment determines to send the available channel of data to second user equipment；

Judge whether the available channel is occupied, if not, first user equipment determines that the communication traffic patterns are the normal communication mode, if, whether judge to run in occupied channel is public safety urgency traffic, if so, determining that the communication traffic patterns are the yielding pattern communication, if it is not, determining that the communication traffic patterns communicate for the jamming pattern.

Alternatively, the processor 1101 specifically for：

Under jamming pattern communication, determined according to the disturbance regime of the available channel to transmission power during second user equipment transmission data.

Alternatively, the transmitter 1102, for when first user equipment is located at mobile communications network overlay area, to base-station transmitting-power request message, the power request message includes the channel use information that first user equipment is obtained, so that the base station determines the transmission power of first user equipment according to the channel use information；

The receiver 1103, is additionally operable to receive the power response message that the base station is sent, the power Response message includes the transmission power of first user equipment；

The processor 1101 is additionally operable to：If first user equipment determines that the transmission power that first user equipment is determined is different from the transmission power that the base station is determined, determine that the transmission power that the base station is determined is to transmission power during second user equipment transmission data.

Alternatively, the transmitter 1102 is additionally operable to：The transmission power and/or the network coverage information of first user equipment used to second user equipment transmission first user equipment, so that the second user equipment determines transmission power.

First user equipment provided in an embodiment of the present invention, its implementing principle and technical effect are similar with the first user equipment that above-described embodiment is provided, and here is omitted.

Figure 12 is the structural representation of second user apparatus embodiments three of the present invention.Second user equipment in the present embodiment can be arbitrary user equipment, and for the ease of description, the user equipment is referred to as into second user equipment.Second user equipment 120 provided in an embodiment of the present invention includes：Receiver 1201, processor 1202 and transmitter 1203.Wherein,

Receiver 1201, the network coverage information for receiving first user equipment that the first user equipment is sent；

Processor 1202, the network coverage information for the network coverage information according to first user equipment and the second user equipment determines the second user equipment to transmission power during first user equipment transmission data.

Second user equipment provided in an embodiment of the present invention, its implementing principle and technical effect are similar with the second user equipment that above-described embodiment is provided, and here is omitted.

Alternatively, the processor 1202 specifically for：

The mobile network for determining first user equipment and the second user equipment according to the network coverage information of the network coverage information of first user equipment and the second user equipment covers state；

State is covered according to the mobile network of first user equipment and the second user equipment, determines the second user equipment to transmission power during first user equipment transmission data；

First user equipment and the second user equipment are located at mobile network overlay area；First user equipment and the second user equipment are not located at mobile network overlay area；First user equipment is located at mobile network overlay area, and the second user equipment, which is not located at, moves Dynamic network's coverage area；

Alternatively, the processor 1202 specifically for：

When the second user equipment determines that first user equipment and the second user equipment are located at mobile network overlay area, the second user equipment is serviced by the second base station, when first user equipment is serviced by the 3rd base station, the second user equipment is to the second base station transmitting power adjustment information, the power adjustment message is used for the transmission power and/or running time-frequency resource for indicating that second base station adjusts first user equipment, and indicate second base station and the 3rd base station communication, so that the 3rd base station is adjusted to the transmission power and/or running time-frequency resource of first user equipment；

The second user equipment receives the power adjustment response message that second base station is sent, and adjusting response message according to the power determines the second user equipment to transmission power during the first user equipment transmission data.

Alternatively, the processor 1202 specifically for：

Alternatively, when the second user equipment determines that first user equipment is not located at mobile network overlay area, when the second user equipment is located at mobile network overlay area, the receiver 1201 is additionally operable to, and obtains the transmission power that first user equipment is used；

The processor 1202 specifically for：The transmission power used according to first user equipment and institute The measurement transmission power of the first user equipment of second user device measuring acquisition is stated, determines first user equipment to path loss during second user equipment transmission data；

Alternatively, the transmitter 1203 is additionally operable to：

The receiver 1201 is additionally operable to：Receive the second user equipment that second base station sends to the first user equipment send data when transmission power.

Alternatively, the transmitter 1203 is additionally operable to：The limited transmission power and the limited running time-frequency resource of the second user equipment are sent to the second base station, second base station services the second user equipment;The receiver 1201 is additionally operable to：Receive the second user equipment that second base station sends to the first user equipment send data when transmission power and running time-frequency resource that second base station is the second user device configuration.

Alternatively, the processor 1202 specifically for：The transmission power according to workable for current communications traffic determines present channel；

Alternatively, the processor 1202 is additionally operable to：

Alternatively, when the second user equipment determines that first user equipment is located at mobile network overlay area, when the second user equipment is not located at mobile network overlay area, the transmitter 1203 is additionally operable to：To the first user equipment transmitting power adjustment information or transmission resources adjustment information； The processor 1202 specifically for：Transmission power after being adjusted according to first user equipment or the transmission resources after adjustment, determine the second user equipment to transmission power during first user equipment transmission data.

In several embodiments provided herein, it should be understood that disclosed equipment, apparatus and method can be realized by another way.For example, device embodiment described above is only schematical, for example, the division of the unit or module, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, it, by some interfaces, the INDIRECT COUPLING or communication connection of device or unit, can be electrical, machinery or other forms that shown or discussed coupling or direct-coupling or communication connection each other, which can be,.

The unit illustrated as separating component can be or may not be physically separate, and the part shown as unit can be or may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.

One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can be completed by the related hardware of programmed instruction.Foregoing program can be stored in a computer read/write memory medium.The program upon execution, performs the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.

Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part or all technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the scope of various embodiments of the present invention technical scheme.

Claims

Claims

1st, a kind of user equipment, the user equipment is the first user equipment, it is characterised in that including：Determining module, for determining the first user equipment to transmission power during second user equipment transmission data；

Data transmission blocks, for sending data to the second user equipment using the transmission power.

2nd, user equipment according to claim 1, it is characterised in that the determining module specifically for：Determine the first user equipment to transmission power during second user equipment transmission data according to type of traffic；

Wherein, the type of traffic includes public safety urgency traffic and the safe general service of not common, the corresponding transmission power of the public safety urgency traffic is the first emitting power grade, the corresponding transmission power of the safe general service of not common is the second emitting power grade, and first emitting power grade is higher than second emitting power grade.

3rd, user equipment according to claim 2, it is characterized in that, the safe general service of not common includes the general service of different service quality rank, second emitting power grade includes multiple sub- grades of second transmission power, and the corresponding sub- grade of second transmission power of the general service is corresponding with the service quality of the general service.

4th, user equipment according to claim 1, it is characterised in that the determining module specifically for：Determine the first user equipment to transmission power during second user equipment transmission data according to communication traffic patterns；

Wherein, the communication traffic patterns include normal mode communication, make a concession pattern communication and jamming pattern communication.

5th, user equipment according to claim 4, it is characterised in that also include, judge module, before the transmission power when the determining module determines that the first user equipment sends data to second user equipment according to communication traffic patterns,

It is determined that sending the available channel of data to second user equipment；

Judge whether the available channel is occupied, if not, it is the normal communication mode to determine the communication traffic patterns, if, whether judge to run in occupied channel is public safety urgency traffic, if so, determining that the communication traffic patterns are the yielding pattern communication, if it is not, determining that the communication traffic patterns communicate for the jamming pattern.

6th, user equipment according to claim 5, it is characterised in that the determining module specifically for: Under normal mode communication, determined according to type of traffic to transmission power during second user equipment transmission data, and data are sent to the second user equipment on unappropriated available channel；Or

Under the yielding pattern communication, it is determined that being less than transmission power when first user equipment sends data when carrying out public safety urgency traffic to second user equipment to transmission power during second user equipment transmission data；Or

Under jamming pattern communication, determined according to the disturbance regime of the available channel to transmission power during second user equipment transmission data.

7th, the user equipment according to any one of claim 1 to 6, it is characterised in that also include：Request sending module and receiving module；

The request sending module, for when first user equipment is located at mobile communications network overlay area, to base-station transmitting-power request message, the power request message includes the channel use information that first user equipment is obtained, so that the base station determines the transmission power of first user equipment according to the channel use information；

The receiving module, for receiving the power response message that the base station is sent, the power response message includes the transmission power of first user equipment；

The determining module is additionally operable to, if the transmission power of determining module determination is different from the transmission power that the base station is determined, determines that the transmission power that the base station is determined is to transmission power during second user equipment transmission data.

8th, the user equipment according to any one of claim 1 to 7, it is characterised in that also include：Information sending module, for the transmission power and/or the network coverage information of first user equipment used to second user equipment transmission first user equipment, so that the second user equipment determines transmission power.

9th, a kind of user equipment, the user equipment is second user equipment, it is characterised in that including：Receiving module, the network coverage information for receiving first user equipment that the first user equipment is sent；

Determining module, the network coverage information for the network coverage information according to first user equipment and the second user equipment determines the second user equipment to transmission power during first user equipment transmission data.

10th, user equipment according to claim 9, it is characterised in that the determining module, including: Status determining unit, the network coverage information for the network coverage information according to first user equipment and the second user equipment determines mobile network's covering state of first user equipment and the second user equipment；

Power determining unit, for covering state according to the mobile network of first user equipment and the second user equipment, determines the second user equipment to transmission power during first user equipment transmission data；

Wherein, mobile network's covering state of first user equipment and the second user equipment includes any of following form：

First user equipment and the second user equipment are located at mobile network overlay area；First user equipment and the second user equipment are not located at mobile network overlay area；First user equipment is located at mobile network overlay area, and the second user equipment is not located at mobile network overlay area；

First user equipment is not located at mobile network overlay area, and the second user equipment is located at mobile network overlay area.

11, user equipment according to claim 10, it is characterized in that, when the status determining unit determines that first user equipment and the second user equipment are located at mobile network overlay area, when first user equipment and the second user equipment are serviced by first base station, the power determining unit specifically for：

To the first base station transmission power adjustment information, the power adjustment message is used for the transmission power and/or running time-frequency resource for indicating that the-base station adjusts first user equipment, and the second user equipment transmission power and/or running time-frequency resource；

The power adjustment response message that the first base station is sent is received, adjusting response message according to the power determines the second user equipment to transmission power during the first user equipment transmission data.

12nd, user equipment according to claim 10, it is characterized in that, when the status determining unit determines that first user equipment and the second user equipment are located at mobile network overlay area, the second user equipment is serviced by the second base station, when first user equipment is serviced by the 3rd base station, the power determining unit specifically for：

To the second base station transmitting power adjustment information, the power adjustment message is used for the transmission power and/or running time-frequency resource for indicating that second base station adjusts first user equipment, and indicate second base station and the 3rd base station communication so that transmitting work(of the 3rd base station to first user equipment Rate and/or running time-frequency resource are adjusted；

The power adjustment response message that second base station is sent is received, adjusting response message according to the power determines the second user equipment to transmission power during the first user equipment transmission data.

13rd, user equipment according to claim 10, it is characterised in that when the status determining unit determine first user equipment and the second user equipment not be located at mobile network overlay area when, the power determining unit specifically for：

Determined according to type of traffic or communication traffic patterns to transmission power during first user equipment transmission data.

14th, user equipment according to claim 10, it is characterized in that, when the status determining unit determine first user equipment not be located at mobile network overlay area, the second user equipment be located at mobile network overlay area when, the power determining unit specifically for：

Obtain the transmission power that first user equipment is used；

The measurement transmission power for the first user equipment that the transmission power used according to first user equipment and the second user device measuring are obtained, determines first user equipment to path loss during second user equipment transmission data；

According to the receiving sensitivity of the path loss and first user equipment, the limited transmission power of the second user equipment is determined；

According to the limited transmission power, determine the second user equipment to transmission power during first user equipment transmission data.

15th, user equipment according to claim 14, it is characterised in that the power determining unit also particularly useful for：

The limited transmission power is sent to the second base station, second base station services the second user equipment；

Receive the second user equipment that second base station sends to the first user equipment send data when transmission power.

16th, user equipment according to claim 14, it is characterised in that the power determining unit also particularly useful for：

The limited transmission power and the limited running time-frequency resource of the second user equipment are sent to the second base station, second base station services the second user equipment；

When receiving the second user equipment of the second base station transmission to the first user equipment transmission data Transmission power and second base station be the second user device configuration running time-frequency resource.

17th, user equipment according to claim 14, it is characterised in that the power determining unit also particularly useful for：

The transmission power according to workable for current communications traffic determines present channel；

Transmission power and the limited transmission power according to workable for present channel, determine the second user equipment to transmission power during first user equipment transmission data.

18th, the user equipment according to any one of claim 14 to 17, it is characterized in that, determining that first user equipment is not located at mobile network overlay area when the status determining unit, when the second user equipment is located at mobile network overlay area, the power determining unit is additionally operable to：

Workable transmission power, the second user equipment allow on channel corresponding with second base station communication transmission power and the limited transmission power are obtained, second base station services the second user equipment；

Transmission power and the limited transmission power that transmission power, the second user equipment according to workable on the channel corresponding with second base station communication allow, determine the second user equipment to the transmission power during transmission data of second base station.

19th, user equipment according to claim 10, it is characterized in that, when the state determining module determine the first user equipment be located at mobile network overlay area, the second user equipment not be located at mobile network overlay area when, the power determining unit specifically for：

To the first user equipment transmitting power adjustment information or transmission resources adjustment information；

Transmission power after being adjusted according to first user equipment or the transmission resources after adjustment, determine the second user equipment to transmission power during first user equipment transmission data.

20th, a kind of transmission power control method, it is characterised in that including：

First user equipment determines the first user equipment to transmission power during second user equipment transmission data；

First user equipment sends data using the transmission power to the second user equipment.

21st, method according to claim 20, it is characterised in that first user equipment determines the first user equipment to transmission power during second user equipment transmission data, including：

First user equipment determines the first user equipment to transmission power during second user equipment transmission data according to type of traffic；

Wherein, the type of traffic includes public safety urgency traffic and the safe general service of not common, The corresponding transmission power of the public safety urgency traffic is the first emitting power grade, and the corresponding transmission power of the safe general service of not common is the second emitting power grade, and first emitting power grade is higher than second emitting power grade.

22nd, method according to claim 21, it is characterized in that, the safe general service of not common includes the general service of different service quality rank, second emitting power grade includes multiple sub- grades of second transmission power, and the corresponding sub- grade of second transmission power of the general service is corresponding with the service quality of the general service.

23rd, method according to claim 20, it is characterised in that first user equipment determines the first user equipment to transmission power during second user equipment transmission data, including：

First user equipment determines the first user equipment to transmission power during second user equipment transmission data according to communication traffic patterns；

Wherein, the communication traffic patterns include normal mode communication, make a concession pattern communication and jamming pattern communication.

24th, method according to claim 23, it is characterised in that first user equipment according to communication traffic patterns determine the first user equipment to second user equipment send data when transmission power before, in addition to Γ

First user equipment determines to send the available channel of data to second user equipment；

First user equipment judges whether the available channel is occupied, if not, first user equipment determines that the communication traffic patterns are the normal communication mode, if, whether what first user equipment judged to run in occupied channel is public safety urgency traffic, if, first user equipment determines that the communication traffic patterns are the yielding pattern communication, if it is not, first user equipment determines that the communication traffic patterns communicate for the jamming pattern.

25th, method according to claim 24, it is characterised in that first user equipment determines the first user equipment to transmission power during second user equipment transmission data according to communication traffic patterns, including：Under normal mode communication, first user equipment is determined to transmission power during second user equipment transmission data according to type of traffic, and sends data to the second user equipment on unappropriated available channel；Or

Under the yielding pattern communication, first user equipment determines to be less than transmission power when first user equipment sends data when carrying out public safety urgency traffic to second user equipment to transmission power during second user equipment transmission data；Or Under jamming pattern communication, first user equipment is determined to transmission power during second user equipment transmission data according to the disturbance regime of the available channel.

26th, the method according to any one of claim 20 to 25, it is characterized in that, when first user equipment is located at mobile communications network overlay area, first user equipment is to base-station transmitting-power request message, the power request message includes the channel use information that first user equipment is obtained, so that the base station determines the transmission power of first user equipment according to the channel use information;First user equipment receives the power response message that the base station is sent, and the power response message includes the transmission power of first user equipment；

If first user equipment determines that the transmission power that first user equipment is determined is different from the transmission power that the base station is determined, first user equipment determines that the transmission power that the base station is determined is to transmission power during second user equipment transmission data.

27th, the method according to any one of claim 20 to 26, it is characterised in that methods described also includes：

Transmission power and/or the network coverage information of first user equipment that first user equipment is used to second user equipment transmission first user equipment, so that the second user equipment determines transmission power.

28th, a kind of transmission power control method, it is characterised in that including：

Second user equipment receives the network coverage information for first user equipment that the first user equipment is sent；

The second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the network coverage information of first user equipment and the network coverage information of the second user equipment.

29th, method according to claim 28, it is characterized in that, the second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the network coverage information of first user equipment and the network coverage information of the second user equipment, including：

The second user equipment determines that the mobile network of first user equipment and the second user equipment covers state according to the network coverage information of first user equipment and the network coverage information of the second user equipment；

The second user equipment covers state according to the mobile network of first user equipment and the second user equipment, determines the second user equipment to transmitting during first user equipment transmission data Power；

Wherein, mobile network's covering state of first user equipment and the second user equipment includes any of following form：

First user equipment and the second user equipment are located at mobile network overlay area；First user equipment and the second user equipment are not located at mobile network overlay area；First user equipment is located at mobile network overlay area, and the second user equipment is not located at mobile network overlay area；

First user equipment is not located at mobile network overlay area, and the second user equipment is located at mobile network overlay area.

30th, method according to claim 29, it is characterized in that, the second user equipment covers state according to the mobile network of first user equipment and the second user equipment, the second user equipment is determined to transmission power during first user equipment transmission data, including：

When the second user equipment determines that first user equipment and the second user equipment are located at mobile network overlay area, when first user equipment and the second user equipment are serviced by first base station, the second user equipment is to the first base station transmission power adjustment information, the power adjustment message is used for the transmission power and/or running time-frequency resource for indicating that the first base station adjusts first user equipment, and the second user equipment transmission power and/or running time-frequency resource；

The second user equipment receives the power adjustment response message that the first base station is sent, and adjusting response message according to the power determines the second user equipment to transmission power during the first user equipment transmission data.

31st, method according to claim 29, it is characterized in that, the second user equipment covers state according to the mobile network of first user equipment and the second user equipment, the second user equipment is determined to transmission power during first user equipment transmission data, including：

When the second user equipment determines that first user equipment and the second user equipment are located at mobile network overlay area, the second user equipment is serviced by the second base station, when first user equipment is serviced by the 3rd base station, the second user equipment is to the second base station transmitting power adjustment information, the power adjustment message is used for the transmission power and/or running time-frequency resource for indicating that second base station adjusts first user equipment, and indicate second base station and the 3rd base station communication, so that the 3rd base station is adjusted to the transmission power and/or running time-frequency resource of first user equipment；

The second user equipment receives the power adjustment response message that second base station is sent, according to institute Stating power adjustment response message determines the second user equipment to transmission power during the first user equipment transmission data.

32nd, method according to claim 29, it is characterized in that, the second user equipment covers state according to the mobile network of first user equipment and the second user equipment, the second user equipment is determined to transmission power during first user equipment transmission data, including：

When the second user equipment determines that first user equipment and the second user equipment are not located at mobile network overlay area, the second user equipment is determined to transmission power during first user equipment transmission data according to type of traffic or communication traffic patterns.

33rd, method according to claim 29, it is characterized in that, the second user equipment covers state according to the mobile network of first user equipment and the second user equipment, the second user equipment is determined to transmission power during first user equipment transmission data, including：

When the second user equipment determines that first user equipment is not located at mobile network overlay area, when the second user equipment is located at mobile network overlay area, the second user equipment obtains the transmission power that first user equipment is used；

The measurement transmission power for the first user equipment that the transmission power and the second user device measuring that the second user equipment is used according to first user equipment are obtained, determines first user equipment to path loss during second user equipment transmission data；

The second user equipment determines the limited transmission power of the second user equipment according to the receiving sensitivity of the path loss and first user equipment；

The second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the limited transmission power.

34th, method according to claim 33, it is characterised in that the second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the limited transmission power, including：

The second user equipment sends the limited transmission power to the second base station, and second base station services the second user equipment；

The second user equipment receive the second user equipment that second base station sends to the first user equipment send data when transmission power.

35th, method according to claim 33, it is characterised in that the second user equipment determines that the second user equipment sends data to first user equipment according to the limited transmission power When transmission power, including：

The second user equipment sends the limited transmission power and the limited running time-frequency resource of the second user equipment to the second base station, and second base station services the second user equipment；

The second user equipment receive the second user equipment that second base station sends to the first user equipment send data when transmission power and running time-frequency resource that second base station is the second user device configuration.

36th, method according to claim 33, it is characterised in that the second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the limited transmission power, including：

Second user equipment transmission power according to workable for current communications traffic determines present channel；The second user equipment transmission power and limited transmission power according to workable for present channel, determine the second user equipment to transmission power during first user equipment transmission data.

37th, the method according to any one of claim 33 to 36, it is characterised in that first user equipment is not located at mobile network overlay area, and when the second user equipment is located at mobile network overlay area, methods described also includes：

The second user equipment obtains the transmission power and the limited transmission power that workable transmission power, the second user equipment allow on channel corresponding with second base station communication, and second base station services the second user equipment；

Transmission power and the limited transmission power that the second user equipment transmission power, second user equipment according to workable on the channel corresponding with second base station communication allow, determine the second user equipment to the transmission power during transmission data of second base station.

38th, method according to claim 29, it is characterized in that, the second user equipment covers state according to the mobile network of first user equipment and the second user equipment, the second user equipment is determined to transmission power during first user equipment transmission data, including：

When the second user equipment determines that first user equipment is located at mobile network overlay area, when the second user equipment is not located at mobile network overlay area, the second user equipment is to the first user equipment transmitting power adjustment information or transmission resources adjustment information；

The second user equipment determines the second user equipment to transmission power during first user equipment transmission data according to the transmission power after first user equipment adjustment or the transmission resources after adjustment.