CN109617587A

CN109617587A - Antenna selecting method and terminal

Info

Publication number: CN109617587A
Application number: CN201811433217.6A
Authority: CN
Inventors: 张厦
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-11-28
Filing date: 2018-11-28
Publication date: 2019-04-12
Anticipated expiration: 2038-11-28
Also published as: CN109617587B

Abstract

The present invention provides a kind of antenna selecting method and terminal, and the terminal is equipped with mutiple antennas, this method comprises: passing through first antenna the first reference signal of transmitting in the multiple antenna；It obtains at least two antennas in the multiple antenna in addition to the first antenna and receives power to the first of first reference signal；Power is received according to described first, selects an antenna as target antenna, transmitting antenna or candidate transmitting antenna of the target antenna as uplink signal from least two antenna.As it can be seen that the terminal of the embodiment of the present invention can receive power according to described first, select an antenna as target antenna, from least two antennas described in principal and subordinate so as to improve the flexibility ratio of day line options.

Description

Antenna selecting method and terminal

Technical field

The present embodiments relate to field of communication technology more particularly to a kind of antenna selecting method and terminals.

Background technique

In LTE (Long Term Evolution, long term evolution) communication system, network side equipment, as base station is usually divided Specific terminal is given in a part of region of match system bandwidth, i.e., in a specific time, gives the specific frequency zones of terminal distribution Domain resource.

Currently, the reference signal that network side equipment is sent based on terminal, to estimate the uplink letter of different antennae, different channels Road quality, and then can be used for emitting antenna, channel of uplink signal etc. for terminal selection.As it can be seen that in the prior art, terminal The flexibility ratio for carrying out day line options is lower.

Summary of the invention

The embodiment of the present invention provides a kind of antenna selecting method and terminal, to solve the flexibility ratio that terminal carries out day line options Lower problem.

To solve the above problems, the present invention is implemented as follows:

In a first aspect, being applied to terminal the embodiment of the invention provides a kind of antenna selecting method, the terminal is equipped with more A antenna, which comprises

Emit the first reference signal by the first antenna in the multiple antenna；

At least two antennas in the multiple antenna in addition to the first antenna are obtained to first reference signal First receive power；

Power is received according to described first, selects an antenna as target antenna, institute from least two antenna State transmitting antenna or candidate transmitting antenna of the target antenna as uplink signal.

Second aspect, the embodiment of the present invention also provide a kind of terminal, and the terminal is equipped with mutiple antennas, the terminal packet It includes:

First transmitting module, for emitting the first reference signal by the first antenna in the multiple antenna；

First obtains module, for obtaining at least two antennas pair in the multiple antenna in addition to the first antenna The first of first reference signal receives power；

First choice module selects a day for receiving power according to described first from least two antenna Line is as target antenna, transmitting antenna or candidate transmitting antenna of the target antenna as uplink signal.

The third aspect, the embodiment of the present invention also provide a kind of terminal, which includes processor, memory and be stored in institute The computer program that can be run on memory and on the processor is stated, when the computer program is executed by the processor The step of realizing antenna selecting method as described above.

Fourth aspect, the embodiment of the present invention also provide a kind of computer readable storage medium, the computer-readable storage medium Computer program is stored in matter, the computer program realizes antenna selecting method as described above when being executed by processor Step.

In embodiments of the present invention, the first antenna in the mutiple antennas that terminal is equipped with emits the first reference signal；It obtains At least two antennas in the multiple antenna in addition to the first antenna receive function to the first of first reference signal Rate；Power is received according to described first, selects an antenna as target antenna, the target from least two antenna Transmitting antenna or candidate transmitting antenna of the antenna as uplink signal.As it can be seen that the terminal of the embodiment of the present invention can be according to described First receives power, selects an antenna as target antenna, from least two antennas described in principal and subordinate so as to improve day The flexibility ratio of line options.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, needed in being described below to the embodiment of the present invention Attached drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, For those of ordinary skill in the art, without any creative labor, it can also obtain according to these attached drawings Obtain other attached drawings.

Fig. 1 is one of the schematic diagram of radio architectures provided in an embodiment of the present invention；

Fig. 2 is the two of the schematic diagram of radio architectures provided in an embodiment of the present invention；

Fig. 3 is one of the flow chart of antenna selecting method provided in an embodiment of the present invention；

Fig. 4 a is the three of the schematic diagram of radio architectures provided in an embodiment of the present invention；

Fig. 4 b is the four of the schematic diagram of radio architectures provided in an embodiment of the present invention；

Fig. 5 a is one of the schematic diagram of switch module provided in an embodiment of the present invention；

Fig. 5 b is the two of the schematic diagram of switch module provided in an embodiment of the present invention；

Fig. 6 is the two of the flow chart of antenna selecting method provided in an embodiment of the present invention；

Fig. 7 is one of the structure chart of terminal provided in an embodiment of the present invention；

Fig. 8 is the two of the structure chart of terminal provided in an embodiment of the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.

Term " first ", " second " in the application etc. are to be used to distinguish similar objects, without specific for describing Sequence or precedence.In addition, term " includes " and " having " and their any deformation, it is intended that covering is non-exclusive Include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to clearly arrange Those of out step or unit, but may include be not clearly listed or it is solid for these process, methods, product or equipment The other step or units having.In addition, "and/or" used herein indicates at least one of institute's connecting object, such as A And/or B and/or C, indicating to include independent A, independent B, independent C and A and B exist, and B and C exist, and A and C exist, And all existing 7 kinds of situations of A, B and C.

For ease of description, below to the present embodiments relate to some contents be illustrated:

One, for LTE uplink, two kinds of reference signals are defined:

DMRS (Demodulation Reference Signal, demodulated reference signal): can carry out uplink channel estimation, It can be used for the PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) and PUCCH of network side The relevant detection and demodulation of (Physical Uplink Control Channel, physical uplink control channel)；

SRS (Sounding Reference Signal, detection reference signal): can be used for uplink signal-channel quality measurement, Main function may include:

1, it is used for uplink channel status acquisition of information, is suitable for FDD (Frequency Division Duplexing, frequency Divide duplex) communication system；

2, it is obtained for downlink CSI (Channel State Information, channel state information), is suitable for TDD (Time Division Duplexing, time division duplex) communication system；

3, uplink beam management is carried out, is suitable for high frequency, can effectively promote uplink efficiency.

In 5G (5th-Generation, the 5th third-generation mobile communication technology) epoch, communication bandwidth is wider, and SRS demand is also stronger Strong, part operator has been classified as essential.

Currently, SRS can be applied to the radio architectures such as 1T2R, 1T4R, 2T4R.Wherein, T represents Transmit (transmitting), R Represent Receive (reception).The radio architectures of 1T4R and 2T4R can respectively refering to fig. 1 and Fig. 2.

As shown in Figure 1,1T4R radio architectures include 1 tunnel transmitting signal (Tx) and 4 tunnels reception signal (Rx0, Rx1, Rx2, Rx3).Wherein, Tx signal can switch to antenna 1, antenna 2, antenna 3, antenna 4 respectively by switch module, i.e. Tx signal can According to actual needs, to be emitted by antenna 1, antenna 2, antenna 3 or antenna 4.

As shown in Fig. 2, 2T4R radio architectures include 2 tunnels transmitting signal (Tx0, Tx1) and 4 tunnels reception signal (Rx0, Rx1, Rx2,Rx3).Wherein, Tx signal has 2 kinds of working conditions:

Working condition 1:Tx0 signal is fixed on antenna 1, and Tx1 signal is cut on antenna 2, antenna 3, antenna 4 respectively It changes.Emitted that is, Tx0 signal can be fixed by antenna 1, Tx1 signal can pass through antenna 2, day according to actual needs Line 3 or antenna 4 emit；

Working condition 2:Tx0 signal switches between antenna 1, antenna 3, and Tx1 signal switches between antenna 2, antenna 4. That is, Tx0 signal can be emitted, Tx1 signal can be according to practical need by antenna 1 or antenna 3 according to actual needs It asks, is emitted by antenna 2 or antenna 4.

Two, tdd communication system:

Tdd communication system is the transmitting and reception of signal to be realized by time sharing mode, and emit and receive frequency Part working frequency range that is identical, being defined as shown in the table for existing 5G NR.

The embodiment of the present invention utilizes the characteristics of tdd communication system transmit-receive cofrequency, by terminal internal loopback reference signal, comes Autonomous assessment own antenna performance, and according to antenna performance, selection target antenna.

The antenna selecting method of the embodiment of the present invention can be applied to the terminal equipped with multiple (3 or 3 or more) antennas.? In practical application, terminal can be mobile phone, tablet computer (Tablet Personal Computer), laptop computer (Laptop Computer), personal digital assistant (Personal Digital Assistant, PDA), mobile Internet access device The terminal sides such as (Mobile Internet Device, MID), wearable device (Wearable Device) or mobile unit Equipment, it should be noted that do not limit the concrete type of terminal 11 in embodiments of the present invention.

The antenna selecting method of the embodiment of the present invention is illustrated below.

It is one of the flow chart of antenna selecting method provided in an embodiment of the present invention referring to Fig. 3, Fig. 3.As shown in figure 3, this The antenna selecting method of embodiment the following steps are included:

Step 301 emits the first reference signal by the first antenna in the multiple antenna.

When specific implementation, the first reference signal (such as SRS0) can be configured in the first antenna in mutiple antennas by terminal Transmitting.

It should be noted that multiple in this step can be understood as three or three or more.That is, the present invention is real Apply example terminal set there are three or three or more antennas.

Wherein, first antenna can be any antenna in mutiple antennas, can specifically determine according to actual needs, the present invention It is not limited thereto.Illustratively, it is assumed that terminal is equipped with 4 antennas, respectively antenna 1, antenna 2, antenna 3 and antenna 4, then eventually End can by the first reference signal configuration on antenna 1, antenna 2, antenna 3 or antenna 4 transmitted reference signal.

At least two antennas in step 302, the multiple antenna of acquisition in addition to the first antenna are to described first The first of reference signal receives power.

When first antenna is configured to emission state, in the multiple antenna in addition to the first antenna have to be two Antenna can be configured to reception state simultaneously, receive first reference signal.

Due to tdd communication system transmit-receive cofrequency, at least two antenna can normally receive first antenna hair The reference signal penetrated.Based on this, each antenna receives above-mentioned reference signal in available at least two antenna of terminal First receive power.It should be understood that each antenna at least two antenna respectively corresponds one first reception function Rate.

Step 303 receives power according to described first, selects an antenna as target from least two antenna Antenna.

Wherein, transmitting antenna or candidate transmitting antenna of the target antenna as uplink signal.That is, this step The target antenna of middle selection can be directly used as transmitting antenna, for emitting uplink signal；Alternatively, the target selected in this step Antenna can be used as candidate transmitting antenna.

Terminal is communicated by transmitting antenna with other equipment.Therefore, the communication matter to improve terminal and other equipment Amount, can select the maximum antenna of performance number as target antenna from least two antenna.

It should be noted that in embodiments of the present invention, performance number can be used for characterizing the performance of antenna, and the property of antenna It can be worth and be positively correlated with the performance of the antenna.That is, the performance number of antenna is bigger, illustrate that the performance of the antenna is more excellent, terminal When being communicated by the antenna with other equipment, communication quality is better.

In addition, antenna environment can constantly change terminal in actual operation, the performance of antenna can also change therewith.This The terminal of inventive embodiments is intended to the performance according to antenna each under current state, selection target antenna.Accordingly, it is to be understood that It is that the target antenna that terminal selects under different conditions is possible different.

When specific implementation, terminal can receive power according to described first, from described at least two days in several ways It selects an antenna as target antenna in line, is described as follows:

Mode one

In this mode, the size that terminal directly can receive power according to first, is selected from least two antenna An antenna is selected as target antenna.

When specific implementation, terminal can select to correspond to maximum first reception power from least two antenna Antenna as target antenna.It is greater than at least two antenna that is, target antenna corresponding first receives power Other antennas corresponding first in addition to the target antenna receive power.

Illustratively, it is assumed that at least two antenna includes: antenna 2, antenna 3 and antenna 4, and the first of antenna 3 connects The first reception power that power is greater than antenna 2 is received, the first of antenna 2 receives first of power greater than antenna 4 and receive power.Then may be used To select antenna 2 as target antenna.

By present embodiment, terminal can be directly according to the size of the reception power of each antenna, and Lai Hengliang antenna exists Performance under current state, and then maximum first can be selected to receive the corresponding antenna of power from least two antenna As target antenna, the autonomous selection of antenna is realized, improve the flexibility ratio of terminal antenna selection.

However, in practical applications, isolation and/or spacing distance may be different between different antennae.And isolation or The difference of spacing distance will affect at least two antenna to the reception power of first reference signal.Illustratively, In the case where not considering antenna performance, the antenna being closer at least two antenna with first antenna is to described first The first of reference signal receives power, will be greater than at least two antenna with first antenna apart from farther away antenna to described The first of first reference signal receives power.

As it can be seen that in isolation and/or spacing distance of at least two antenna to first antenna, there are different scenes In, it is influenced by factors such as isolation, spacing distances on power is received, each antenna is to described at least two antenna The reception power of one reference signal cannot be used for accurately measuring performance of the antenna under current state.

It therefore, is the accuracy for improving performance of the judgement antenna under current state, presentation mode two and mode three.

Mode two

In the present embodiment, optionally, described to receive power according to described first, it is selected from least two antenna Before an antenna is selected as target antenna, the method can also include:

It obtains at least two antenna and initially receives power to the first of first reference signal in the initial state；

It is described to receive power according to described first, select an antenna as target day from least two antenna Line, comprising:

Power and the first initial reception power are received according to described first, selects one from least two antenna A antenna is as target antenna.

In embodiments of the present invention, state when original state can be understood as being electrically accessed network in terminal, but not only limit In this.

It should be noted that the acquisition modes for receiving power initial for above-mentioned first, terminal can be in advance using as walked Rapid 302 mode detects acquisition, or is obtained by configuring, and can specifically determine according to actual needs, the embodiment of the present invention to this not It limits.

It " obtains additionally, it should be understood that can remember to be corresponding with original state and removes described first in the multiple antenna At least two antennas except antenna receive power to the first of first reference signal " it is " to obtain in the multiple antenna At least two antennas in addition to the first antenna receive function to the first of first reference signal under current state Rate ".

Further, described to receive power and the first initial reception power according to described first, from described at least two It selects an antenna as target antenna in a antenna, can specifically show themselves in that

Power and the first initial reception power are received according to described first, is determined each at least two antenna First changing value of the reception power of antenna；

According to first changing value, select an antenna as target antenna from least two antenna.

It should be noted that in embodiments of the present invention, the first changing value can be used for reflecting under antenna current state Variation of the performance relative to performance under original state.It should be understood that each antenna at least two antenna is right respectively Answer first changing value.

In view of the first transmission power and first antenna of the first reference signal that first antenna emits under current state Second transmission power of the first reference signal emitted in the initial state is there may be difference, and the first of first antenna transmitting It is different to the reception power of first antenna to will lead to receiving antenna, and then leads to antenna for the difference of the transmission power of reference signal The first reception power and the first initial difference for receiving power not can accurately reflect the performance under antenna current state relative to The variation of performance under original state.

Therefore, for solve the first reference signal emitted by first antenna transmission power difference, lead to the of antenna One reception power and the first initial difference for receiving power not can accurately reflect the performance under antenna current state relative to initial The problem of variation of performance under state, when specific implementation, terminal described can receive power and institute according to described first executing The first initial reception power is stated, is determined at least two antenna before the first changing value for receiving power of each antenna, The first transmission power and first antenna for judging the first reference signal that first antenna emits under current state are in original state Whether the second transmission power of the first reference signal of lower transmitting is identical.

For the first transmission power and the identical application scenarios of the second transmission power, terminal can be directly by described in calculating First receive power and the first initial difference for receiving power corresponding to each antenna at least two antennas, determine it is described extremely First changing value of the reception power of each antenna in few two antennas.

It is described to receive power according to described first for the first transmission power application scenarios different with the second transmission power With the described first initial reception power, the first changing value of the reception power of each antenna at least two antenna is determined, It can specifically show themselves in that

The described first difference for sending power and the first reception power is calculated, is obtained every at least two antenna First difference of a antenna；

The second difference of each antenna at least two antenna is obtained, second difference is the second transmission function Rate and the described first initial difference for receiving power；

According to first difference and second difference, the reception function of each antenna at least two antenna is determined First changing value of rate.

It, can be by calculating first difference for each antenna at least two antenna when specific implementation Difference between second difference obtains corresponding first changing value of the antenna.

In this way, compared to directly power is initially received by calculating the corresponding first reception power of each antenna and first Difference determines the changing value of the reception power of each antenna, can be to avoid the transmitting function of the reference signal emitted by first antenna The difference of rate, and the problem of cause the changing value of the reception power of antenna not can accurately reflect the variation of antenna performance.

In this mode, the first changing value receives power according to first and the first initial power that receives determines, can offset The influence of the factors such as isolation, spacing distance.Therefore, performance of the antenna under current state is measured according to the first changing value, Performance of the antenna under current state is measured compared to according to the first reception power, can be improved and determine the accurate of antenna performance Degree.

In a kind of embodiment, terminal can be directly according to the size of the first changing value, from least two antenna Select an antenna as target antenna.

When specific implementation, terminal can select corresponding maximum first changing value corresponding from least two antenna Antenna as target antenna.It is removed that is, corresponding first changing value of target antenna is greater than at least two antenna Corresponding first changing value of other antennas except the target antenna.

Illustratively, it is assumed that corresponding first changing value of antenna 2 be -5dB, corresponding first changing value of antenna 3 be - 10dB, corresponding first changing value of antenna 4 are -10dB.Antenna 2 then be can choose as target antenna.

Property under performance of the antenna under current state, with the performance and antenna current state of antenna in the initial state It can be relative to the variation correlation of performance under original state.Therefore, in another embodiment, described according to first variation Value, selects an antenna as target antenna from least two antenna, can specifically show themselves in that

According to the initial performance values of each antenna in first changing value and pre-stored at least two antenna, really The first performance value of fixed at least two antenna, the initial performance values are for characterizing the performance of antenna in the initial state；

Select the second antenna as target antenna from least two antenna, second antenna is described at least two First performance is worth maximum antenna in a antenna.

In the present embodiment, in practical applications, the initial performance values can show as antenna efficiency, can also be with table Now it can be used for characterizing the parameter of the performance of antenna in the initial state for other, the embodiment of the present invention is not construed as limiting this.The One performance number can be used for characterizing performance of the antenna under current state.It should be understood that every at least two antenna A antenna respectively corresponds a first performance value.

When specific implementation, for each antenna at least two antenna, terminal can calculate its corresponding first Changing value and initial performance values and value, obtain its corresponding first performance value.Work as since the first changing value can reflect antenna Variation of the performance relative to performance under original state under preceding state, initial performance values can reflect antenna in the initial state Performance illustrates that the corresponding first performance value of certain antenna is bigger, best performance of the antenna under current state.Therefore, Ke Yicong Select the second antenna as target antenna at least two antenna.Wherein, second antenna is described at least two days First performance is worth maximum antenna in line, that is to say, that second antenna is that first performance value is greater than described at least two days The antenna of the first performance value of other antennas in line.

Illustratively, it is assumed that corresponding first changing value of antenna 2 is -5dB, and corresponding initial performance values are -4dB；Antenna 3 Corresponding first changing value is -10dB, and corresponding initial performance values are -2.2dB；Corresponding first changing value of antenna 4 be- 10dB, corresponding initial performance values are -1.5dB.Can then be calculated: the corresponding first performance value of antenna 2 is -9dB, antenna 3 corresponding first performance values are -12.2dB, and the corresponding first performance value of antenna 4 is -16.5dB.As it can be seen that can choose antenna 2 As target antenna.

It in the present embodiment, can be according to the performance of each antenna in the initial state and the current shape of each antenna Changing value of the state compared to the reception power of original state, performance of the Lai Hengliang antenna under current state, so as to improve The accuracy that antenna performance is judged, and then can choose the antenna of best performance at least two antenna as target day Line.

Mode three

In this mode, terminal can obtain the first parameter value of each antenna at least two antenna in advance, In, the first parameter value can be used for describing antenna to factors such as isolation, the spacing distances of first antenna to the shadow for receiving power The degree of sound.

Terminal can receive power and the first parameter according to described first after getting the first reception power Value, selects an antenna as target antenna from least two antenna.

When specific implementation, for each antenna at least two antenna, can be calculated its corresponding One receive power and the first parameter value and after value, select the corresponding maximum antenna with value as target antenna.

By the method, terminal can receive power and the first parameter value according to the first of each antenna, to measure the day The antenna performance of line improves antenna so as to offset influence of the factors such as isolation, spacing distance to the reception power of antenna The accuracy of performances evaluation, and then can choose the antenna of best performance as target antenna.

By above-mentioned antenna selecting method, the first antenna in the mutiple antennas that terminal is equipped with emits the first reference signal； At least two antennas in the multiple antenna in addition to the first antenna are obtained to connect to the first of first reference signal Receive power；Power is received according to described first, selects an antenna as target antenna from least two antenna.It can See, the terminal of the embodiment of the present invention can receive power according to described first, select one from least two antennas described in principal and subordinate A antenna is as target antenna, so as to improve the flexibility ratio of day line options.

By foregoing teachings it is found that the target antenna in step 303 can be directly used as transmitting antenna, for emitting uplink letter Number；Alternatively, as candidate transmitting antenna.

The scene of transmitting antenna is directly used as the target antenna in step 303, it is optionally, described according to described first Receive power, from selected at least two antenna antenna as target antenna after, the method also includes:

The target antenna emits uplink signal.

By foregoing teachings it is found that under current state, the performance of the target antenna selected in step 303 due to it is described at least The performance of other antennas in two antennas in addition to the target antenna.Therefore, terminal emits uplink letter by target antenna Number, it can guarantee the transmission quality of uplink signal to a certain extent.

It is the scene of candidate transmitting antenna for the target antenna in step 303, in above-mentioned each mode, terminal root Power is received according to described at least two first, directly or indirectly measures the performance of at least two antenna, and then according to described The performance of at least two antennas selects at least one antenna not consider as transmitting antenna, but from least two antenna The antenna performance of first antenna.It therefore, is to select the antenna of best performance as transmitting day from first antenna and target antenna Line needs to compare the performance of first antenna and target antenna under current state.

Optionally, it is described according to it is described first receive power, selected from least two antenna antenna as After target antenna, the method also includes:

Emit the second reference signal by the third antenna in the multiple antenna, the third antenna is the multiple day Any one antenna in line in addition to the first antenna and the target antenna；

It obtains the first antenna and the target antenna and receives power to the second of second reference signal；

Power is received according to described second, selects an antenna as upper from the first antenna and the target antenna The transmitting antenna of row signal.

Optionally, described to receive power according to described second, one is selected from the first antenna and the target antenna Before a antenna is as the transmitting antenna of uplink signal, the method also includes:

The first antenna and the target antenna are obtained in the initial state at the beginning of the second of second reference signal Begin to receive power；

It is described to receive power according to described second, select an antenna to make from the first antenna and the target antenna For the transmitting antenna of uplink signal, comprising:

Power and the second initial reception power are received according to described second, from the first antenna and the target day Transmitting antenna of the antenna as uplink signal is selected in line.

Optionally, described to receive power and the second initial reception power according to described second, from the first antenna With transmitting antenna of the antenna as uplink signal is selected in the target antenna, comprising:

Power and the second initial reception power are received according to described second, determines the first antenna and the target Second changing value of the reception power of antenna；

According to second changing value, select an antenna as uplink from the first antenna and the target antenna The transmitting antenna of signal.

Optionally, described according to second changing value, one is selected from the first antenna and the target antenna Transmitting antenna of the antenna as uplink signal, comprising:

According to the initial performance values and second changing value of the first antenna and the target antenna, institute is determined State the second performance number of first antenna and the target antenna；

According to second performance number, select an antenna as uplink from the first antenna and the target antenna The transmitting antenna of signal；

Wherein, in the case where the second performance number of the first antenna is greater than the second performance number of the target antenna, Using the first antenna as the transmitting antenna of uplink signal；It is less than or equal in the second performance number of the first antenna described In the case where second performance number of target antenna, using the target antenna as the transmitting antenna of uplink signal；It is described primality Energy value is for characterizing the performance of antenna in the initial state.

It should be noted that in the scene " selected from the first antenna and the target antenna antenna as The implementation of the transmitting antenna of uplink signal " and " selecting an antenna as target antenna from least two antenna " Implementation it is identical, specifically can refer to above-mentioned associated description, details are not described herein again.

Wherein, the third antenna can be any day in the multiple antenna in addition to first antenna and target antenna Line.But in view of the performance of the antenna of transmitted reference signal is more excellent, the reference signal that first antenna and target antenna receive The anti-interference for receiving power is stronger.Therefore, optionally, first performance value at least two antenna can be only smaller than mesh The first performance value antenna of mark antenna is determined as the third antenna, so as to improve the accuracy of antenna performance judge.

In addition, in step 303, terminal only at least two days from the multiple antenna in addition to the first antenna One antenna of line options is as target antenna, therefore, not considered antenna is likely present in the multiple antenna, is denoted as the Four antennas.For the 4th antenna, terminal can use and " select an antenna from the first antenna and the target antenna The identical mode of transmitting antenna as uplink signal " selects an antenna from the 4th antenna and the target antenna As the transmitting antenna of uplink signal, repeat no more.

It should be noted that the embodiment for the plurality of optional introduced in the embodiment of the present invention, can be combined with each other each other It realizes, can also be implemented separately, this embodiment of the present invention is not construed as limiting.

For convenience of understanding, it is illustrated by taking the radio architectures of 1T4R as an example below.

Fig. 4 a and 4b are please referred to, the radio architectures of 1T4R include at least following device:

CPU (Central Processing Unit, central processing unit): it is mainly used for control RF transceiver, power is put Big device, low-noise amplifier, switch etc., and handle related data；

The power amplifier (Tx0) of transmitting path；

Emission filter F_T；

Low-noise amplifier Rx0, Rx1, Rx2, Rx3 of receiving path；

Receiving filter F_R0、F_R1、F_R2、F_R3, and it is identical as emission filter covering frequence range；

Radio-frequency receiving-transmitting switching switch: for switching transmitting path Tx0 and receiving path Rx0；

Switching molding group: for switched path 1-4 and any connection of antenna 1-4.For example, switching molding group can be herein Transmitting path can be switched and be connected to any antenna by 4T4P switch；

In fig 5 a, access 1-4, which can be arbitrarily switched, is switched to antenna 1-4；In figure 5b, access 1 can arbitrarily switch It is switched to antenna 1-4, access 2/3/4 is only capable of being switched on respectively to antenna 2/3/4.

As shown in fig. 6, the antenna selecting method of the present embodiment may comprise steps of:

Firstly, terminal can store the initial performance values for characterizing the performance of antenna in the initial state, as antenna is imitated Rate can be denoted as P_{j_0}.Wherein, P_{j_0}The performance of representative antennas j in the initial state.Assuming that antenna efficiency P_{1_0}、P_{2_0}、P_{3_0}、P_{4_0} Respectively 50%, 40%, 60%, 70%, i.e. -3dB, -4dB, -2.2dB, -1.5dB, wherein P=10*Log (efficiency).

Step 601 obtains the first instruction information (or to instruct), and the first instruction information, which is used to indicate, obtains each day The relative performance of line in the initial state.

Wherein, the relative performance of each antenna in the initial state can be by the transmission power of transmitting antenna, with the day The difference of the reception power for the transmitting signal that line emits transmitting antenna characterizes, but is not limited only to this.

Step 602 successively emits reference signal configuration on any antenna, and the antenna that reference signal is not configured receives ginseng Examine signal.

Under original state, CPU can export specific function by control modem, RF transceiver, power amplifier The Tx reference signal of rate, and transmission power at this time is recorded in the reference signal configuration to any antenna by control switch For P_T0, it is assumed that it is 0dBm.It should be understood that the P in this step_TThe the second transmitting function that can be equivalent in above method embodiment Rate.

When being configured to transmitting on a certain antenna, other antennas are configured to reception state simultaneously.

Step 603 obtains the reception power P that each receiving antenna receives reference signal_{ij_0}。

Wherein, i representative antennas i, j representative antennas j, P_{ij_0}The ginseng that representative antennas j in the initial state emits antenna i The reception power for examining signal, first be equivalent in above method embodiment is initial to receive power.

For using antenna 1 as transmitting, while 1 transmitted reference signal of antenna, CPU can control switching molding group opening Correlation reception device on access 2, access 3 and access 4, due to TDD system transmit-receive cofrequency, therefore road 2, access 3 and access 4 all The reference signal that the transmitting of antenna 1 can be normally received, the reception power recorded at this time is P_{12_0}、P_{13_0}、P_{14_0}, it is assumed that be respectively- 15dBm、-20dBm、-20dBm。

Known to similarly:

When antenna 2 emits, the reference signal that access 1/3/4 receives is denoted as P_{21_0}、P_{23_0}、P_{24_0}；

When antenna 3 emits, the reference signal that access 1/2/4 receives is denoted as P_{31_0}、P_{32_0}、P_{34_0}；

When antenna 4 emits, the reference signal that access 1/2/3 receives is denoted as P_{41_0}、P_{42_0}、P_{43_0}。

Step 604 calculates transmission power P_TWith the reception power P of each receiving antenna_{ij_0}Difference DELTA P_{ij_0}。

It should be understood that Δ P_{ij_0}The second difference being equivalent in above method embodiment.

Since different antennae has different radiation efficiencies, and between different antennae, isolation is different, therefore different receiving paths Received reference signal is different, the difference of record transmitting herein and reception power, to measure original state receiving antenna and hair The relative performance of antenna is penetrated, i.e.,

ΔP_{12_0}=P_T0–P_{12_0}=15dB

ΔP_{13_0}=P_T0–P_{13_0}=20dB

ΔP_{14_0}=P_T0–P_{14_0}=20dB

Step 605 obtains second indication information, and the second indication information, which is used to indicate, obtains each antenna in current state Under relative performance.

It should be understood that, it should be noted that antenna environment can constantly change terminal in actual operation, it is linear It can also can change therewith.The terminal of the embodiment of the present invention is intended to the performance according to antenna each under current state, selects transmitting antenna. Therefore, when normal signaling work, terminal can carry out antenna performance detection every time T, to select under current state performance most Excellent antenna is as transmitting antenna.

Step 606 emits reference signal configuration on a certain antenna, and the antenna that reference signal is not configured is received with reference to letter Number.

As shown in fig. 4 a, the detection of first time antenna performance is carried out first, that is, is emitted the reference signal of certain power, recorded this When transmission power be P_Tx, it is assumed that think 0dBm, it is also assumed that the transmitting signal is configured in antenna 1, and opens simultaneously reception Access 2/3/4.It should be understood that the P in this step_TxThe first transmission power that can be equivalent in above method embodiment.

It should be noted that in the present embodiment, the P in step 602_T0With the P in step 606_TxValue it is equal, For 0dBm.In practical applications, the P in step 602_T0With the P in step 606_TxIt is different, that is to say, that first antenna is initial The second of the reference signal that the first transmission power and first antenna of the reference signal emitted under state emit under current state Transmission power can be different.

Step 607 obtains the reception power P that each receiving antenna receives reference signal_{ij_x}。

Wherein, P_{ij_x}Representative antennas j under current state to the reception power of the antenna i reference signal emitted, quite First in above method embodiment receives power.

The record reference signal power that each receiving path receives at this time is P_{12_x}、P_{13_x}、P_{14_x}, it is assumed that be respectively- 20dBm、-30dBm、-35dBm。

Step 608 calculates transmission power P_TWith the reception power P of each receiving antenna_{ij_x}Difference DELTA P_{ij_x}。

It should be understood that Δ P_{ij_x}The first difference being equivalent in above method embodiment.

Terminal is in actual operation since the variation of antenna environment, radiation efficiency and isolation between antennae can exist Variation, therefore the reference signal power received can also change therewith, and it is poor to record the reference signal power for emitting and receiving at this time Value, to measure the relative performance of current state receiving antenna and transmitting antenna, i.e.,

ΔP_{12_x}=P_Tx–P_{12_x}=20dB

ΔP_{13_x}=P_Tx–P_{13_x}=30dB

ΔP_{14_x}=P_Tx–P_{14_x}=35dB

Step 609, comparison current state receiving antenna and transmitting antenna relative performance, with original state receiving antenna and hair Antenna relative performance is penetrated, Δ P is denoted as_ij=Δ P_{ij_0}-ΔP_{ij_x}。

Wherein, Δ P_ijThe variation that can be used for characterizing receiving antenna performance, first be equivalent in above method embodiment become Change value.Due in embodiment, the first transmission power of the reference signal that first antenna emits in the initial state and first day Second transmission power of the reference signal that line emits under current state is equal, therefore, Δ P_ijCalculation formula can show themselves in that

ΔP₁₂=Δ P_{12_0}–ΔP_{12_x}=-5dB

ΔP₁₃=Δ P_{13_0}–ΔP_{13_x}=-10dB

ΔP₁₄=Δ P_{14_0}–ΔP_{14_}X=-15dB

Step 610, according to Δ P_ijWith P_{j_0}, determine P_j。

Wherein, P_jIt can be used for characterizing performance of the antenna j under current state, first be equivalent in above method embodiment Performance number.

P₂=P_{2_0}+ΔP_{12_0}=-9dB

P₃=P_{3_0}+ΔP_{13_0}=-12.2dB

P₄=P_{4_0}+ΔP_{14_0}=-16.5dB

Step 611 takes P_jIn maximum value corresponding to the antenna antenna best as performance in receiving antenna, be denoted as second Antenna.

According to P_jSize, performance of more each receiving antenna under current state.

As can seen above, P₂Antenna 2 can be considered as the second antenna then in the application scenarios by maximum, select antenna 2 for Target antenna.

In the present embodiment, target antenna is only used as candidate transmitting antenna.

Step 612, by reference signal configuration in the second largest P_jEmit on corresponding antenna, controls first antenna and second Antenna receives the reference signal of antenna transmitting.

As shown in Figure 4 b, second of antenna performance detection is carried out, i.e. CPU controls modem, RF transceiver, power The devices such as amplifier, switch send reference signal, and the second-best day of performance that the reference signal configuration is selected into step 6 On line, i.e. antenna 3；Simultaneously by the antenna (i.e. first for being used for transmitted reference signal in step 4 in the detection of first time antenna performance Antenna) and step 6 in the best antenna (i.e. the second antenna) of the performance that selects as receiving antenna, i.e. opening access 1 and access 2 receiving path.

Step 613 obtains the reception signal P that each receiving antenna receives reference signal_{ij_y}。

Step 614 calculates transmission power P_TyWith the reception power P of each receiving antenna_{ij_y}Difference DELTA P_{ij_y}。

In the present embodiment, transmission power P_TyWith transmission power P_T0It is equal.

Step 615, comparison current state receiving antenna and transmitting antenna relative performance, with original state receiving antenna and hair Antenna relative performance is penetrated, Δ P is denoted as_ij=Δ P_{ij_0}-ΔP_{ij_y}。

Step 616, according to Δ P_ijWith P_{j_0}, determine P_j。

P in this step_jThe second performance number being equivalent in above method embodiment.

Step 617 takes P_jIn maximum value corresponding to antenna as transmitting antenna.

Wherein, step 613 to step 616 can be with reference to step 607 to the description of step 610, and details are not described herein again.

It should be understood that terminal after determining transmitting antenna, can restore original time-division work system, and it is spaced certain After time, step 605 can be repeated to step 617, independently to select best performance according to the performance of antenna each under current state Antenna as transmitting antenna, so as to improve terminal uplink communication quality.

In addition, it is necessary to explanation, step 601 to step 604 can be understood as default step, in certain embodiments In, terminal can directly store Δ P_{ij_0}, without autonomous measurement, so as to not execute step 601 to step 604.

In addition, the embodiment of the present invention is only illustrated with the quantity of transmitting antenna for 1, it should be understood that for hair The quantity for penetrating antenna is m, and m is greater than 1 framework, the more excellent m of performance can be selected from the multiple antenna in a comparable manner A antenna is as transmitting antenna.

It is one of the structure chart of terminal provided in an embodiment of the present invention referring to Fig. 7, Fig. 7.The terminal 700 of the present embodiment is equipped with Mutiple antennas.As shown in fig. 7, terminal 700 includes:

First transmitting module 701, for emitting the first reference signal by the first antenna in the multiple antenna；

First obtains module 702, for obtaining at least two days in the multiple antenna in addition to the first antenna Line receives power to the first of first reference signal；

First choice module 703 selects one for receiving power according to described first from least two antenna Antenna is as target antenna, transmitting antenna or candidate transmitting antenna of the target antenna as uplink signal.

Optionally, the terminal 700 further include:

Second obtains module, and for receiving power according to described first, one is selected from least two antenna Before antenna is as target antenna, at least two antenna is obtained in the initial state to the first of first reference signal It is initial to receive power；

The first choice module, is specifically used for:

Optionally, the first choice module 703, comprising:

First determines submodule, for receiving power and the first initial reception power according to described first, determines institute State the first changing value of the reception power of each antenna at least two antennas；

First choice submodule, for selecting a day from least two antenna according to first changing value Line is as target antenna.

Optionally, the first choice submodule, comprising:

First determination unit, for according to each day in first changing value and pre-stored at least two antenna The initial performance values of line determine that the first performance value of at least two antenna, the initial performance values exist for characterizing antenna Performance under original state；

First selecting unit, for selecting the second antenna as target antenna from least two antenna, described Two antennas are that first performance is worth maximum antenna at least two antenna.

Optionally, the terminal 700 further include:

Second transmitting module selects one for receiving power according to described first from least two antenna After antenna is as target antenna, the second reference signal, the third day are emitted by the third antenna in the multiple antenna Line is any one antenna in the multiple antenna in addition to the first antenna and the target antenna；

Third obtains module, for obtaining the first antenna and the target antenna to the of second reference signal Two receive power；

Second selecting module, for receiving power according to described second, from the first antenna and the target antenna Select transmitting antenna of the antenna as uplink signal.

Optionally, the terminal 700 further include:

4th obtains module, for receiving power according to described second, from the first antenna and the target antenna It is middle select an antenna as the transmitting antenna of uplink signal before, obtain the first antenna and the target antenna initial Power is initially received to the second of second reference signal under state；

Second selecting module, is specifically used for:

Optionally, second selecting module, comprising:

Second determines submodule, for receiving power and the second initial reception power according to described second, determines institute State the second changing value of the reception power of first antenna and the target antenna；

Second selection submodule, is used for according to second changing value, from the first antenna and the target antenna Select transmitting antenna of the antenna as uplink signal.

Optionally, the second selection submodule, comprising:

Second determination unit, for according to the initial performance values of the first antenna and the target antenna and described Second changing value determines the second performance number of the first antenna and the target antenna；

Second selecting unit, for being selected from the first antenna and the target antenna according to second performance number Select transmitting antenna of the antenna as uplink signal；

Optionally, the terminal 700 further include:

Third transmitting module selects one for receiving power according to described first from least two antenna After antenna is as target antenna, the target antenna emits uplink signal.

Terminal 700 can be realized each process in embodiment of the present invention method, and reach identical beneficial effect, be It avoids repeating, which is not described herein again.

Referring to FIG. 8, Fig. 8 is the two of the structure chart of terminal provided in an embodiment of the present invention, which can be for realization originally Invent a kind of hardware structural diagram of terminal of each embodiment.The terminal 800 of the present embodiment is equipped with mutiple antennas.Such as Fig. 8 Shown, terminal 800 includes but is not limited to: radio frequency unit 801, network module 802, audio output unit 803, input unit 804, Sensor 805, display unit 806, user input unit 807, interface unit 808, memory 809, processor 810, Yi Ji electricity The components such as source 811.It will be understood by those skilled in the art that the restriction of the not structure paired terminal of terminal structure shown in Fig. 8, eventually End may include perhaps combining certain components or different component layouts than illustrating more or fewer components.In the present invention In embodiment, terminal includes but is not limited to mobile phone, tablet computer, laptop, palm PC, car-mounted terminal, wearable sets Standby and pedometer etc..

Wherein, radio frequency unit 801 are used for:

Emit the first reference signal by the first antenna in the multiple antenna；

Processor 810, is used for:

Optionally, processor 810 are also used to:

Optionally, radio frequency unit 801 are also used to:

Processor 810, is also used to:

Optionally, processor 810 are also used to:

Optionally, radio frequency unit 801 are also used to:

The target antenna emits uplink signal.

It should be noted that above-mentioned terminal 800 may be implemented in the embodiment of the present invention in embodiment of the method in the present embodiment Each process, and reach identical beneficial effect, to avoid repeating, details are not described herein again.

It should be understood that the embodiment of the present invention in, radio frequency unit 801 can be used for receiving and sending messages or communication process in, signal Send and receive, specifically, by from base station downlink data receive after, to processor 810 handle；In addition, by uplink Data are sent to base station.In general, radio frequency unit 801 includes but is not limited to antenna, at least one amplifier, transceiver, coupling Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 801 can also by wireless communication system and network and other set Standby communication.

Terminal provides wireless broadband internet by network module 802 for user and accesses, and such as user is helped to receive and dispatch electricity Sub- mail, browsing webpage and access streaming video etc..

Audio output unit 803 can be received by radio frequency unit 801 or network module 802 or in memory 809 The audio data of storage is converted into audio signal and exports to be sound.Moreover, audio output unit 803 can also provide and end The relevant audio output of specific function (for example, call signal receives sound, message sink sound etc.) that end 800 executes.Sound Frequency output unit 803 includes loudspeaker, buzzer and receiver etc..

Input unit 804 is for receiving audio or video signal.Input unit 804 may include graphics processor (Graphics Processing Unit, GPU) 8041 and microphone 8042, graphics processor 8041 is in video acquisition mode Or the image data of the static images or video obtained in image capture mode by image capture apparatus (such as camera) carries out Reason.Treated, and picture frame may be displayed on display unit 806.Through graphics processor 8041, treated that picture frame can be deposited Storage is sent in memory 809 (or other storage mediums) or via radio frequency unit 801 or network module 802.Mike Wind 8042 can receive sound, and can be audio data by such acoustic processing.Treated audio data can be The format output that mobile communication base station can be sent to via radio frequency unit 801 is converted in the case where telephone calling model.

Terminal 800 further includes at least one sensor 805, such as optical sensor, motion sensor and other sensors. Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to ambient light Light and shade adjusts the brightness of display panel 8061, and proximity sensor can close display panel when terminal 800 is moved in one's ear 8061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (generally three axis) and add The size of speed can detect that size and the direction of gravity when static, can be used to identify terminal posture (such as horizontal/vertical screen switching, Dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；Sensor 805 can be with Including fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, hygrometer, thermometer, Infrared sensor etc., details are not described herein.

Display unit 806 is for showing information input by user or being supplied to the information of user.Display unit 806 can wrap Display panel 8061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 8061.

User input unit 807 can be used for receiving the number or character information of input, and generates and set with the user of terminal It sets and the related key signals of function control inputs.Specifically, user input unit 807 include touch panel 8071 and other Input equipment 8072.Touch panel 8071, also referred to as touch screen, collect user on it or nearby touch operation (such as User is using any suitable objects or attachment such as finger, stylus on touch panel 8071 or near touch panel 8071 Operation).Touch panel 8071 may include both touch detecting apparatus and touch controller.Wherein, touch detecting apparatus is examined The touch orientation of user is surveyed, and detects touch operation bring signal, transmits a signal to touch controller；Touch controller from Touch information is received on touch detecting apparatus, and is converted into contact coordinate, then gives processor 810, receives processor 810 The order sent simultaneously is executed.Furthermore, it is possible to using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves Realize touch panel 8071.In addition to touch panel 8071, user input unit 807 can also include other input equipments 8072. Specifically, other input equipments 8072 can include but is not limited to physical keyboard, function key (such as volume control button, switch Key etc.), trace ball, mouse, operating stick, details are not described herein.

Further, touch panel 8071 can be covered on display panel 8061, when touch panel 8071 is detected at it On or near touch operation after, send processor 810 to determine the type of touch event, be followed by subsequent processing device 810 according to touching The type for touching event provides corresponding visual output on display panel 8061.Although in fig. 8, touch panel 8071 and display Panel 8061 is the function that outputs and inputs of realizing terminal as two independent components, but in certain embodiments, it can The function that outputs and inputs of terminal is realized so that touch panel 8071 and display panel 8061 is integrated, is not limited herein specifically It is fixed.

Interface unit 808 is the interface that external device (ED) is connect with terminal 800.For example, external device (ED) may include it is wired or Wireless head-band earphone port, external power supply (or battery charger) port, wired or wireless data port, memory card port, For connecting port, the port audio input/output (I/O), video i/o port, ear port of the device with identification module Etc..Interface unit 808 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED) and will One or more elements that the input received is transferred in terminal 800 or can be used for terminal 800 and external device (ED) it Between transmit data.

Memory 809 can be used for storing software program and various data.Memory 809 can mainly include storing program area The storage data area and, wherein storing program area can (such as the sound of application program needed for storage program area, at least one function Sound playing function, image player function etc.) etc.；Storage data area can store according to mobile phone use created data (such as Audio data, phone directory etc.) etc..In addition, memory 809 may include high-speed random access memory, it can also include non-easy The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.

Processor 810 is the control centre of terminal, using the various pieces of various interfaces and the entire terminal of connection, is led to It crosses operation or executes the software program and/or module being stored in memory 809, and call and be stored in memory 809 Data execute the various functions and processing data of terminal, to carry out integral monitoring to terminal.Processor 810 may include one Or multiple processing units；Preferably, processor 810 can integrate application processor and modem processor, wherein application processing The main processing operation system of device, user interface and application program etc., modem processor mainly handles wireless communication.It can manage Solution, above-mentioned modem processor can not also be integrated into processor 810.

Terminal 800 can also include the power supply 811 (such as battery) powered to all parts, it is preferred that power supply 811 can be with It is logically contiguous by power-supply management system and processor 810, thus by power-supply management system realize management charging, electric discharge, with And the functions such as power managed.

In addition, terminal 800 includes some unshowned functional modules, details are not described herein.

Preferably, the embodiment of the present invention also provides a kind of terminal, including processor 810, and memory 809 is stored in storage It is real when which is executed by processor 810 on device 809 and the computer program that can be run on the processor 810 Each process of existing above-mentioned antenna selecting method embodiment, and identical technical effect can be reached, to avoid repeating, here no longer It repeats.

The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium Calculation machine program, the computer program realize each process of above-mentioned antenna selecting method embodiment, and energy when being executed by processor Reach identical technical effect, to avoid repeating, which is not described herein again.Wherein, the computer readable storage medium, such as only Read memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc..

It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do There is also other identical elements in the process, method of element, article or device.

Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art The part contributed out can be embodied in the form of software products, which is stored in a storage medium In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.

The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much Form belongs within protection of the invention.

Claims

1. a kind of antenna selecting method is applied to terminal, which is characterized in that the terminal is equipped with mutiple antennas, the method packet It includes:

Emit the first reference signal by the first antenna in the multiple antenna；

At least two antennas in the multiple antenna in addition to the first antenna are obtained to the of first reference signal One receives power；

Power is received according to described first, selects an antenna as target antenna, the mesh from least two antenna Mark transmitting antenna or candidate transmitting antenna of the antenna as uplink signal.

2. antenna selecting method according to claim 1, which is characterized in that it is described to receive power according to described first, from Selected at least two antenna antenna as target antenna before, the method also includes:

It is described to receive power according to described first, select an antenna as target antenna, packet from least two antenna It includes:

Power and the first initial reception power are received according to described first, a day is selected from least two antenna Line is as target antenna.

3. antenna selecting method according to claim 2, which is characterized in that described to receive power and institute according to described first The first initial reception power is stated, selects an antenna as target antenna from least two antenna, comprising:

Power and the first initial reception power are received according to described first, determines each antenna at least two antenna Reception power the first changing value；

4. antenna selecting method according to claim 3, which is characterized in that it is described according to first changing value, from institute It states and selects an antenna as target antenna at least two antennas, comprising:

According to the initial performance values of each antenna in first changing value and pre-stored at least two antenna, institute is determined The first performance value of at least two antennas is stated, the initial performance values are for characterizing the performance of antenna in the initial state；

Select the second antenna as target antenna from least two antenna, second antenna is described at least two days First performance is worth maximum antenna in line.

5. antenna selecting method according to any one of claim 1 to 4, which is characterized in that described according to described first Receive power, from selected at least two antenna antenna as target antenna after, the method also includes:

Emit the second reference signal by the third antenna in the multiple antenna, the third antenna is in the multiple antenna Any one antenna in addition to the first antenna and the target antenna；

Power is received according to described second, an antenna is selected to believe from the first antenna and the target antenna as uplink Number transmitting antenna.

6. antenna selecting method according to claim 5, which is characterized in that it is described to receive power according to described second, from Selected in the first antenna and the target antenna antenna as the transmitting antenna of uplink signal before, the method is also Include:

The first antenna and the target antenna is obtained initially to connect to the second of second reference signal in the initial state Receive power；

It is described to receive power according to described second, select an antenna as upper from the first antenna and the target antenna The transmitting antenna of row signal, comprising:

Power and the second initial reception power are received according to described second, from the first antenna and the target antenna Select transmitting antenna of the antenna as uplink signal.

7. antenna selecting method according to claim 6, which is characterized in that described to receive power and institute according to described second The second initial reception power is stated, hair of the antenna as uplink signal is selected from the first antenna and the target antenna Penetrate antenna, comprising:

Power and the second initial reception power are received according to described second, determines the first antenna and the target antenna Reception power the second changing value；

According to second changing value, select an antenna as uplink signal from the first antenna and the target antenna Transmitting antenna.

8. antenna selecting method according to claim 7, which is characterized in that it is described according to second changing value, from institute State the transmitting antenna for selecting an antenna as uplink signal in first antenna and the target antenna, comprising:

According to the initial performance values and second changing value of the first antenna and the target antenna, described is determined Second performance number of one antenna and the target antenna；

According to second performance number, select an antenna as uplink signal from the first antenna and the target antenna Transmitting antenna；

Wherein, in the case where the second performance number of the first antenna is greater than the second performance number of the target antenna, by institute State transmitting antenna of the first antenna as uplink signal；It is less than or equal to the target in the second performance number of the first antenna In the case where second performance number of antenna, using the target antenna as the transmitting antenna of uplink signal；The initial performance values For characterizing the performance of antenna in the initial state.

9. a kind of terminal, which is characterized in that the terminal is equipped with mutiple antennas, and the terminal includes:

First obtains module, for obtaining at least two antennas in the multiple antenna in addition to the first antenna to described The first of first reference signal receives power；

First choice module selects an antenna to make for receiving power according to described first from least two antenna For target antenna, transmitting antenna or candidate transmitting antenna of the target antenna as uplink signal.

10. terminal according to claim 9, which is characterized in that the terminal further include:

Second obtains module, and for receiving power according to described first, an antenna is selected from least two antenna Before target antenna, obtain that at least two antenna configures in the initial state to the of first reference signal One initial reception power；

The first choice module, is specifically used for:

11. terminal according to claim 10, which is characterized in that the first choice module, comprising:

First determines submodule, for according to described first receive power and it is described first it is initial receive power, determine it is described extremely First changing value of the reception power of each antenna in few two antennas；

First choice submodule, for selecting an antenna to make from least two antenna according to first changing value For target antenna.

12. terminal according to claim 11, which is characterized in that the first choice submodule, comprising:

First determination unit, for according to each antenna in first changing value and pre-stored at least two antenna Initial performance values determine the first performance value of at least two antenna, and the initial performance values are for characterizing antenna initial Performance under state；

First selecting unit, for selecting the second antenna as target antenna from least two antenna, described second day Line is that first performance is worth maximum antenna at least two antenna.

13. the terminal according to any one of claim 9 to 12, which is characterized in that the terminal further include:

Second transmitting module selects an antenna for receiving power according to described first from least two antenna After target antenna, the second reference signal is emitted by the third antenna in the multiple antenna, the third antenna is Any one antenna in the multiple antenna in addition to the first antenna and the target antenna；

Third obtains module, connects for obtaining the first antenna and the target antenna to the second of second reference signal Receive power；

Second selecting module is selected from the first antenna and the target antenna for receiving power according to described second Transmitting antenna of one antenna as uplink signal.

14. terminal according to claim 13, which is characterized in that the terminal further include:

4th obtains module, for receiving power according to described second, selects from the first antenna and the target antenna Before an antenna is selected as the transmitting antenna of uplink signal, the first antenna and the target antenna are obtained in original state Under initially receive power to the second of second reference signal；

Second selecting module, is specifically used for:

15. terminal according to claim 14, which is characterized in that second selecting module, comprising:

Second determines submodule, for according to described second receive power and it is described second it is initial receive power, determine described the Second changing value of the reception power of one antenna and the target antenna；

Second selection submodule, for being selected from the first antenna and the target antenna according to second changing value Transmitting antenna of one antenna as uplink signal.

16. terminal according to claim 15, which is characterized in that the second selection submodule, comprising:

Second selecting unit, for selecting one from the first antenna and the target antenna according to second performance number Transmitting antenna of a antenna as uplink signal；

17. a kind of terminal, which is characterized in that including processor, memory and be stored on the memory and can be at the place The computer program run on reason device is realized when the computer program is executed by the processor as appointed in claim 1 to 8 The step of antenna selecting method described in one.

18. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium Program realizes such as antenna selecting method described in any item of the claim 1 to 8 when the computer program is executed by processor The step of.