CN110278015A - A kind of antenna selecting method, device and terminal - Google Patents

A kind of antenna selecting method, device and terminal Download PDF

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Publication number
CN110278015A
CN110278015A CN201910406458.XA CN201910406458A CN110278015A CN 110278015 A CN110278015 A CN 110278015A CN 201910406458 A CN201910406458 A CN 201910406458A CN 110278015 A CN110278015 A CN 110278015A
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CN
China
Prior art keywords
antenna
quality
wireless communication
signal quality
communication link
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Granted
Application number
CN201910406458.XA
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Chinese (zh)
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CN110278015B (en
Inventor
丁仁天
宁杰
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201910406458.XA priority Critical patent/CN110278015B/en
Publication of CN110278015A publication Critical patent/CN110278015A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H04B17/327—Received signal code power [RSCP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
    • H04B7/0608—Antenna selection according to transmission parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
    • H04B7/0608—Antenna selection according to transmission parameters
    • H04B7/061—Antenna selection according to transmission parameters using feedback from receiving side

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

This application provides a kind of antenna selecting method, device and terminals.The described method includes: monitoring the quality of the corresponding wireless communication link of the first antenna；When the quality of the wireless communication link meets antenna switching entry condition, the first received signal quality of the first antenna and the second received signal quality of second antenna are measured in the first preset time；When second received signal quality is greater than first received signal quality, signal is sent to base station in turn by the first antenna and second antenna in the second preset time；Measurement the first transmission signal quality of the first antenna and second of second antenna in second preset time send signal quality；When described second, which sends signal quality, is greater than the first transmission signal quality, signal is sent to the base station using second antenna.

Description

A kind of antenna selecting method, device and terminal
Technical field
This application involves fields of communication technology, and in particular to a kind of antenna selecting method, device and terminal.
Background technique
For the user equipment with two and the above antenna, all antennas can be used as receiving antenna, for receiving Signal；And wherein an antenna is as transmission antenna, for sending signal.In practical applications, user equipment is due to holding etc. Factor, the signal quality for causing transmission antenna to send is poor, therefore, it is necessary to switch antenna, to improve user equipment transmitting signal Quality.
User equipment calculates the intensity of the reception signal of every antenna of downlink in real time, and more currently transmitted antenna receives letter Number signal strength and other antennas receive signal signal strength.When currently transmitted antenna receive signal signal intensity ratio its When his antenna receives the difference in signal strength 6db of signal, antenna switching is carried out.The program receives signal according to downlink signal, Signal strength carries out antenna switching, can not switch antenna in time in uplink limitation scene.
Summary of the invention
The embodiment of the present application provides a kind of antenna selecting method, device and terminal, can be in the channel radio of transmission antenna When letter link is unsatisfactory for preset condition, switch transmission antenna in time.
In a first aspect, the embodiment of the present application provides a kind of antenna selecting method, it is applied to terminal, the terminal includes the One antenna and the second antenna；The described method includes: monitoring the quality of the corresponding wireless communication link of the first antenna；When described When the quality of wireless communication link meets antenna switching entry condition, the of the first antenna is measured in the first preset time Second received signal quality of one received signal quality and second antenna；Described in being greater than when second received signal quality When the first received signal quality, sent out in turn to base station in the second preset time by the first antenna and second antenna The number of delivering letters；Measurement first transmission signal quality and second antenna of the first antenna in second preset time Second sends signal quality；When described second, which sends signal quality, is greater than described first and sends signal quality, described the is used Two antennas send signal to the base station.
With reference to first aspect, in a first possible implementation of that first aspect, the method also includes: when described When one transmission signal quality is greater than or equal to the second transmission signal quality, pass through the first antenna and second antenna Signal is sent to the base station in turn.
When the signal quality sent by the second antenna is not more than the signal quality sent by first antenna, by the One antenna and the second antenna send signal in turn, so as to increase the probability of terminal signaling successful launch, improve user's communication Experience.
With reference to first aspect, in a second possible implementation of that first aspect, the quality of the wireless communication link The quality of quality and/or downlink wireless communication link including up-link wireless communication link.
In this implementation, it can be cut according to whether the quality of the up-link wireless communication link of transmission antenna meets antenna Entry condition is changed, to determine whether starting antenna switching, so as to which in the case where uplink is limited, starting antenna is cut The problem of changing, solving in the case where the good uplink of downlink is limited, antenna can not be switched.In the implementation In, whether can also meet antenna switching entry condition, according to the quality of the downlink wireless communication link of transmission antenna to judge Whether start antenna switching, solves the problems, such as that antenna can not be switched when downlink difference is smaller.
With reference to first aspect, in first aspect in the third possible implementation, the wireless communication link is uplink Wireless communication link, the quality of the up-link wireless communication link are retransmission rate and/or spectrum efficiency.
Retransmission rate directly affects time delay, and spectrum efficiency directly affects handling capacity, both directly reflects the communication of user Experience.In this implementation, quality of one of the two or both as transmission antenna up-link wireless communication link is selected Index can improve the communication experiences of user to judge whether to meet antenna switching entry condition.
The third possible implementation with reference to first aspect, in the 4th kind of possible implementation of first aspect, institute The quality for stating up-link wireless communication link is retransmission rate, and the antenna switching entry condition is that the retransmission rate is greater than retransmission rate door Limit；Or,
The quality of the up-link wireless communication link is spectrum efficiency, and the antenna switching entry condition is frequency spectrum effect Rate is greater than spectrum efficiency thresholding.
Retransmission rate directly affects time delay, and spectrum efficiency directly affects handling capacity, both directly reflects the communication of user Experience.In this implementation, it is greater than its pre-determined threshold in the retransmission rate of the signal sent by transmission antenna and/or frequency spectrum is imitated When rate is less than its pre-determined threshold, antenna switching can be started, the communication experiences of user can be improved.
With reference to first aspect, in the 5th kind of possible implementation of first aspect, the wireless communication link is downlink Wireless communication link, the quality of the downlink wireless communication link is Signal to Interference plus Noise Ratio SINR and reference signal receives Power RSRP；The antenna switching entry condition is that the SINR is less than SINR thresholding and/or the RSRP is less than RSRP Limit.
SINR directly affects the power that is decoded into of data packet, and RSRP characterizes signal strength.In this implementation, passing through When the SINR of transmission antenna received signal is less than its pre-determined threshold and/or RSRP less than its pre-determined threshold, it can improve user's Communication experiences.
With reference to first aspect, in the 6th kind of possible implementation of first aspect, work as the wireless communication link described When the quality on road meets antenna switching entry condition, first that the first antenna is measured in the first preset time receives signal Before second received signal quality of quality and second antenna；The method also includes: determine the current industry of the terminal Service type；The antenna switching entry condition is determined according to the present type of service.
The communication condition of different service types demand is different, in this implementation, true according to terminal present type of service Antenna switching entry condition is determined, so that the quality in the wireless communication link of transmission antenna meets the corresponding day of present type of service When line switches entry condition, starting antenna switching, so as to further promote user's communication experiences and unnecessary antenna Frequent switching.
With reference to first aspect, in the 7th kind of possible implementation of first aspect, first received signal quality is SINR and RSRP；Second received signal quality is SINR and RSRP.
SINR directly affects the power that is decoded into of data packet, and RSRP characterizes signal strength.In this implementation, by SINR With RSRP as the quality index for receiving signal, compare the received signal quality between different antennae, so that comparison result is more It is intuitive and accurate.
With reference to first aspect, described when described second receives signal in the 8th kind of possible implementation of first aspect When quality is greater than first received signal quality, pass through the first antenna and second antenna in the second preset time In turn to the base station send signal, comprising: when second received signal quality be greater than first received signal quality, and When meeting default switching condition, by the first antenna and second antenna in turn to institute in second preset time It states base station and sends signal.
In practical applications, in fact it could happen that such case passes through although being greater than by other antenna received signal quality Transmission antenna received signal quality, but it is also poor by other antenna received signal quality.In this case, though into Antenna switching is gone, but little to the improvement of communication.Therefore, it is in this case not necessary to carry out antenna switching.In the realization In mode, before switching antenna, also require to be greater than default switching condition by other antenna received signal quality, so as to The unnecessary antenna under afore-mentioned is avoided to switch.
With reference to first aspect, in the 9th kind of possible implementation of first aspect, it is described first send signal quality and The second transmission signal quality is determined by spectrum efficiency and quality feedback information.
In this implementation, the transmission signal quality determined based on spectrum efficiency and quality feedback information, can reflect number According to efficiency of transmission, transmission antenna is selected accordingly, can improve user's communication experiences.
9th kind of possible implementation with reference to first aspect, in the tenth kind of possible implementation of first aspect, institute It includes following any for stating quality feedback information:
ACK, NACK, new data instruction.
In this implementation, ACK, NACK, new data instruction send as feedback information the meter of signal quality It calculates, so that calculated result is more accurate and objective.
Second aspect, the embodiment of the present application provide a kind of terminal, and the terminal includes processor, memory, first day Line and the second antenna；The processor is used to monitor the quality of the corresponding wireless communication link of the first antenna；The processing Device is also used to measure institute in the first preset time when the quality of the wireless communication link meets antenna switching entry condition State the first received signal quality of first antenna and the second received signal quality of second antenna；The processor is for working as When second received signal quality is greater than first received signal quality, pass through described first day in the second preset time Line and second antenna send signal to base station in turn；The processor is also used to measure the institute in second preset time State the first of first antenna the second transmission signal quality for sending signal quality and second antenna；The processor is also used to When described second, which sends signal quality, is greater than the first transmission signal quality, sent out using second antenna to the base station The number of delivering letters.
In conjunction with second aspect, in second aspect in the first possible implementation, the processor is also used to when described First sends signal quality when being greater than or equal to described second and sending signal quality, by the first antenna and second day described Line wheel flows to the base station and sends signal.
In conjunction with second aspect, in second of second aspect possible implementation, the quality of the wireless communication link The quality of quality and/or downlink wireless communication link including up-link wireless communication link.
In conjunction with second aspect, in second aspect in the third possible implementation, the wireless communication link is uplink Wireless communication link, the quality of the up-link wireless communication link are retransmission rate and/or spectrum efficiency.
The third possible implementation in conjunction with second aspect, in the 4th kind of possible implementation of second aspect, institute The quality for stating up-link wireless communication link is retransmission rate, and the antenna switching entry condition is that the retransmission rate is greater than retransmission rate door Limit；Or, the quality of the up-link wireless communication link is spectrum efficiency, the antenna switching entry condition is the spectrum efficiency Greater than spectrum efficiency thresholding.
In conjunction with second aspect, in the 5th kind of possible implementation of second aspect, the wireless communication link is downlink Wireless communication link, the quality of the downlink wireless communication link is Signal to Interference plus Noise Ratio SINR and reference signal receives Power RSRP；The antenna switching entry condition is that the SINR is less than SINR thresholding and/or the RSRP is less than RSRP Limit.
In conjunction with second aspect, in the 6th kind of possible implementation of second aspect, work as the wireless communication link described When the quality on road meets antenna switching entry condition, first that the first antenna is measured in the first preset time receives signal Before second received signal quality of quality and second antenna；The processor is also used to determine the current industry of the terminal Service type；The antenna switching entry condition is determined according to the present type of service.
In conjunction with second aspect, in the 7th kind of possible implementation of second aspect, first received signal quality is SINR and RSRP；Second received signal quality is SINR and RSRP.
In conjunction with second aspect, in the 8th kind of possible implementation of second aspect, the processor is also used to when described Second received signal quality is greater than first received signal quality, and when meeting default switching condition, default described second Signal is sent to the base station in turn by the first antenna and second antenna in time.
In conjunction with second aspect, in the 9th kind of possible implementation of second aspect, it is described first send signal quality and The second transmission signal quality is determined by spectrum efficiency and quality feedback information.
In conjunction with possible implementation in second aspect the 9th, in the tenth kind of possible implementation of second aspect, institute It includes following any for stating quality feedback information:
ACK, NACK, new data instruction.
The third aspect, the embodiment of the present application also provides a kind of antenna selection apparatus, described device is set to terminal, described Terminal includes first antenna and the second antenna；Described device includes:
Monitoring unit, for monitoring the quality of the corresponding wireless communication link of the first antenna；
First measuring unit, for when the quality of the wireless communication link meets antenna switching entry condition, the The first received signal quality of the measurement first antenna and the second of second antenna receive signal matter in one preset time Amount；
Transmission unit is used for when second received signal quality is greater than first received signal quality, second Signal is sent to base station in turn by the first antenna and second antenna in preset time；
Second measuring unit, first for measuring the first antenna in second preset time sends signal matter Second transmission signal quality of amount and second antenna；
The transmission unit is also used to make when described second sends signal quality and be greater than the first transmission signal quality Signal is sent to the base station with second antenna.
In conjunction with the third aspect, in the third aspect in the first possible implementation, the transmission unit is also used to work as institute When stating the first transmission signal quality more than or equal to the second transmission signal quality, pass through the first antenna and described second Antenna sends signal to the base station in turn.
In conjunction with the third aspect, in second of the third aspect possible implementation, the quality of the wireless communication link The quality of quality and/or downlink wireless communication link including up-link wireless communication link.
In conjunction with the third aspect, in the third aspect in the third possible implementation, the wireless communication link is uplink Wireless communication link, the quality of the up-link wireless communication link are retransmission rate and/or spectrum efficiency.
The third possible implementation in conjunction with the third aspect, in the 4th kind of possible implementation of the third aspect, institute The quality for stating up-link wireless communication link is retransmission rate, and the antenna switching entry condition is that the retransmission rate is greater than retransmission rate door Limit；Or, the quality of the up-link wireless communication link is spectrum efficiency, the antenna switching entry condition is the spectrum efficiency Greater than spectrum efficiency thresholding.
In conjunction with the third aspect, in the 5th kind of possible implementation of the third aspect, the wireless communication link is downlink Wireless communication link, the quality of the downlink wireless communication link is Signal to Interference plus Noise Ratio SINR and reference signal receives Power RSRP；The antenna switching entry condition is that the SINR is less than SINR thresholding and/or the RSRP is less than RSRP Limit.
In conjunction with the third aspect, in the 6th kind of possible implementation of the third aspect, described device further includes determination unit； Described when the quality of the wireless communication link meets antenna switching entry condition, in the first preset time described in measurement Before second received signal quality of the first received signal quality of first antenna and second antenna；The determination unit is used In the present type of service for determining the terminal；The antenna switching entry condition is determined according to the present type of service.
In conjunction with the third aspect, in the 7th kind of possible implementation of the third aspect, first received signal quality is SINR and RSRP；Second received signal quality is SINR and RSRP.
In conjunction with the third aspect, in the 8th kind of possible implementation of the third aspect, the transmission unit is also used to work as institute It is pre- described second when stating the second received signal quality greater than first received signal quality, and meeting default switching condition If sending signal to the base station in turn by the first antenna and second antenna in the time.
In conjunction with the third aspect, in the 9th kind of possible implementation of the third aspect, it is described first send signal quality and The second transmission signal quality is determined by spectrum efficiency and quality feedback information.
In conjunction with possible implementation in the third aspect the 9th, in the tenth kind of possible implementation of the third aspect, institute It includes following any for stating quality feedback information:
ACK, NACK, new data instruction.
Fourth aspect, the embodiment of the present application provide a kind of integrated circuit for day line options, comprising:
Memory, for storing instruction；
And the processor coupled with the memory, for executing described instruction, to realize side described in first aspect Method.
5th aspect, the embodiment of the present application provide a kind of chip system, and the chip system includes: processor, described Processor is used to execute instructions so that the terminal for being equipped with the chip system to execute method described in first aspect.
6th aspect, the embodiment of the present application provide a kind of computer storage medium, and the computer storage medium includes Computer instruction, when the computer instruction is run at the terminal, so that the terminal executes method described in first aspect.
7th aspect, the embodiment of the present application provide a kind of computer program product, and the computer program product includes Program code by terminal processor execute when, realize first aspect described in method.
Antenna selecting method, terminal and device provided by the embodiments of the present application can pass through the transmission antenna pair at current time It (rather than is by first antenna received signal strength that whether the quality for the wireless communication link answered, which meets antenna switching entry condition, Whether meet pre-determined threshold with the difference of the second antenna received signal strength), to determine whether starting first antenna and second day The measurement of line received signal quality；When the second antenna received signal quality is greater than first antenna received signal quality, i.e., when the When the quality of the corresponding downlink wireless communication link of two antennas is greater than the quality of the corresponding downlink wireless communication link of first antenna, Signal is sent in turn by first antenna and the second antenna, and both judges to send the quality of signal, and then is decided whether the Two antennas are as new transmission antenna.Therefore, scheme provided in this embodiment can be selected from the mutiple antennas of communication equipment Downlink and the preferable antenna of uplink out, and using the antenna as transmission antenna, improve user's communication experiences.And And scheme provided in this embodiment overcomes when two antenna downlink signal strength differences are smaller, can not switch asking for antenna Topic.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of wireless communication system provided by the embodiments of the present application；
Fig. 2 is a kind of structural schematic diagram of terminal provided by the embodiments of the present application；
Fig. 3 is a kind of weak signal schematic diagram of a scenario provided by the embodiments of the present application；
Fig. 4 is a kind of flow chart of antenna selecting method provided by the embodiments of the present application
Fig. 5 is the flow chart of another antenna selecting method provided by the embodiments of the present application；
Fig. 6 is a kind of schematic block diagram of terminal provided by the embodiments of the present application；
Fig. 7 is a kind of schematic block diagram of antenna selection apparatus provided by the embodiments of the present application.
Specific embodiment
Below in conjunction with attached drawing, technical solution in the embodiment of the present invention is described.Obviously, described embodiment It is only a part of the embodiment of the present invention, instead of all the embodiments.
Fig. 1 shows a kind of wireless communication system, including terminal 100 and base station 200.
Base station 200 is the specific can be that universal nodes B in the 5th generation (5th generation, 5G) mobile communication system Evolution node B in (generation node B, gNB), forth generation (4th generation, 4G) mobile communication system Base station in (evolutional node B, eNB or eNodeB) and other possible wireless access technologys.Base station NodeB, Evolved base station eNodeB, the base station in the 5th generation (the fifth generation, 5G) communication system, future communication systems In base station etc..
Terminal 100 includes but is not limited to: mobile phone (mobile phone), tablet computer (Pad), with radio transmission-receiving function Computer, virtual reality (Virtual Reality, VR) terminal device, augmented reality (Augmented Reality, AR) terminal It is equipment, the wireless terminal in Industry Control (industrial control), wireless in unmanned (self driving) Terminal, the wireless terminal in tele-medicine (remote medical), the wireless terminal in smart grid (smart grid), fortune Wireless terminal, the wireless terminal in smart city (smart city), intelligence in defeated safety (transportation safety) Wireless terminal etc. in intelligent family (smart home).
Terminal 100 has at least two antennas, including first antenna and the second antenna.In the first communication equipment and When two communication equipments carry out wireless communication, an antenna (such as first antenna) of the first communication equipment is available to make main collection antenna, Remaining antenna (such as second antenna) is used as diversity antenna.The main collection antenna of first communication equipment is referred to as transmission antenna, For sending signal and receiving signal.The diversity antenna of first communication equipment is referred to as spare antenna, for receiving signal.
Fig. 2 shows the structural schematic diagrams of terminal 100.
Terminal 100 may include processor 110, external memory interface 120, internal storage 121, universal serial bus (universal serial bus, USB) interface 130, charge management module 140, power management module 141, battery 142, day Line 1, antenna 2, mobile communication module 150, wireless communication module 160, audio-frequency module 170, loudspeaker 170A, receiver 170B, Microphone 170C, earphone interface 170D, sensor module 180, key 190, motor 191, indicator 192, camera 193 are shown Display screen 194 and Subscriber Identity Module (subscriber identification module, SIM) card interface 195 etc..Its Middle sensor module 180 may include pressure sensor 180A, gyro sensor 180B, baroceptor 180C, magnetic sensing Device 180D, acceleration transducer 180E, range sensor 180F, close to optical sensor 180G, fingerprint sensor 180H, temperature is passed Sensor 180J, touch sensor 180K, ambient light sensor 180L, bone conduction sensor 180M etc..
It is understood that the specific restriction of the structure not structure paired terminal 100 of signal of the embodiment of the present invention.In this Shen Please in other embodiments, terminal 100 may include than illustrating more or fewer components, perhaps combine certain components or Split certain components or different component layouts.The component of diagram can be with hardware, and the combination of software or software and hardware is real It is existing.
Processor 110 may include one or more processing units, such as: processor 110 may include application processor (application processor, AP), modem processor, graphics processor (graphics processing Unit, GPU), image-signal processor (image signal processor, ISP), controller, Video Codec, number Signal processor (digital signal processor, DSP), baseband processor and/or neural network processor (neural-network processing unit, NPU) etc..Wherein, different processing units can be independent device, It can integrate in one or more processors.
Controller can generate operating control signal according to instruction operation code and clock signal, complete instruction fetch and execution The control of instruction.
Memory can also be set in processor 110, for storing instruction and data.In some embodiments, processor Memory in 110 is cache memory.The memory can save the instruction that processor 110 is just used or is recycled Or data.If processor 110 needs to reuse the instruction or data, can be called directly from the memory.It avoids Repeated access, reduces the waiting time of processor 110, thus improves the efficiency of system.
The wireless communication function of terminal 100 can pass through antenna 1, antenna 2, mobile communication module 150, wireless communication module 160, modem processor and baseband processor etc. are realized.
Antenna 1 and antenna 2 electromagnetic wave signal for transmitting and receiving.Each antenna in terminal 100 can be used for covering list A or multiple communication bands.Different antennas can also be multiplexed, to improve the utilization rate of antenna.Such as: antenna 1 can be multiplexed For the diversity antenna of WLAN.In other embodiments, antenna can be used in combination with tuning switch.
Mobile communication module 150 can be provided using the solution of wireless communications such as including 2G/3G/4G/5G on the terminal 100 Certainly scheme.Mobile communication module 150 may include at least one filter, switch, power amplifier, low-noise amplifier (low Noise amplifier, LNA) etc..Mobile communication module 150 can be by including that at least two antennas of antenna 1 receive electromagnetism Wave, and received electromagnetic wave is filtered, the processing such as amplification is sent to modem processor and is demodulated.Mobile communication Module 150 can also amplify the modulated signal of modulated demodulation processor, switch to electromagenetic wave radiation through antenna 1 and go out.? In some embodiments, at least partly functional module of mobile communication module 150 can be arranged in processor 110.Some In embodiment, at least partly functional module of mobile communication module 150 can be set at least partly module of processor 110 In the same device.
Modem processor may include modulator and demodulator.Wherein, modulator is used for low frequency base to be sent Band signal is modulated into high frequency signal.Demodulator is used to received electromagnetic wave signal being demodulated into low frequency baseband signal.Then solution Adjust device that the low frequency baseband signal that demodulation obtains is sent to baseband processor.Low frequency baseband signal is through baseband processor Afterwards, it is delivered to application processor.Application processor is defeated by audio frequency apparatus (being not limited to loudspeaker 170A, receiver 170B etc.) Voice signal out, or image or video are shown by display screen 194.In some embodiments, modem processor can be Independent device.In further embodiments, modem processor can be independently of processor 110, with mobile communication module 150 or other function module be arranged in the same device.
Wireless communication module 160 can be provided using on the terminal 100 including WLAN (wireless local Area networks, WLAN) (such as Wireless Fidelity (wireless fidelity, Wi-Fi) network), bluetooth (bluetooth, BT), Global Navigation Satellite System (global navigation satellite system, GNSS), frequency modulation (frequency Modulation, FM), the short distance wireless communication technology (near field communication, NFC), infrared technique The solution of wireless communications such as (infrared, IR).Wireless communication module 160 can be integrated into a few communication process mould One or more devices of block.Wireless communication module 160 receives electromagnetic wave via antenna 2, by electromagnetic wave signal frequency modulation and filter Wave processing, by treated, signal is sent to processor 110.Wireless communication module 160 can also receive pending from processor 110 The signal sent carries out frequency modulation to it, and amplification switchs to electromagenetic wave radiation through antenna 2 and goes out.
In some embodiments, at least two antennas including antenna 1 and mobile communication module 150 of terminal 100 couple, Antenna 2 and wireless communication module 160 couple, and allow terminal 100 technology and network and other equipment by wireless communication Communication.The wireless communication technique may include global system for mobile communications (global system for mobile Communications, GSM), general packet radio service (general packet radio service, GPRS), code point Multiple access accesses (code division multiple access, CDMA), wideband code division multiple access (wideband code Division multiple access, WCDMA), time division CDMA (time-division code division Multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC, FM and/or IR technology etc..The GNSS may include GPS (global positioning system, GPS), Global Navigation Satellite System (global navigation satellite system, GLONASS), big-dipper satellite is led Boat system (beidou navigation satellite system, BDS), quasi- zenith satellite system (quasi-zenith Satellite system, QZSS) and/or satellite-based augmentation system (satellite based augmentation systems, SBAS)。
When mobile communication module 150 is coupled at least two antennas, it is typically chosen the preferable antenna of channel status and is used as hair Antennas, to emit signal.
According to a kind of scheme, can based on emitting antenna selecting (transmitter antenna selection, TAS)/ Multi-antenna selection (multiple antenna selection, MAS) technology carries out day line options.For TAS/MAS technology.It adjusts Demodulation processor processed can calculate the received signal strength of every antenna in real time, then pass through signal difference between two antennas of setting Thresholding (such as 6db) sends signal to select the preferable antenna of channel status to determine whether need to cut antenna.Actually answering In, there can be weak signal scene as shown in Figure 3, each antenna of mobile phone receives the Reference Signal Received Power of signal (reference signal receiving power, RSRP), fluctuating range is smaller, such as always in 1db a small range wave It is dynamic, and totally all have been approached the mobile phone demodulation sensitivity limit.In such a scenario, the difference between the RSRP between two antennas Value is up to 2db, is not able to satisfy switching signal difference threshold (such as 6db).So that mobile phone not will do it the switching of transmitting antenna, To influence the communication experiences of user.In practical applications, can also there be such scene, there are two transmitting antennas on mobile phone, It is closer with base station distance to set left antenna, signal is relatively preferable (such as 2db higher than right antenna), but at this time because of two of mobile phone Transmitting antenna received signal strength difference is smaller, is unsatisfactory for switching signal difference threshold (such as 6db), and mobile phone not will do it transmitting The switching of antenna, then mobile phone can not be switched to the preferably left antenna of signal always and carry out signal transmitting.To influence the logical of user Letter experience.
The embodiment of the present application provides a kind of antenna selecting method, can be applied to terminal 100.With reference to Fig. 4, this method packet Include following steps.
Step 402, the quality of the corresponding wireless communication link of monitoring first antenna.
First antenna can be the antenna 1 of terminal 100, in its transmission antenna as terminal 100 of current time, for sending out The number of delivering letters.The quality of the corresponding wireless communication link of first antenna may include the quality of up-link wireless communication link, can also be with Quality including downlink wireless communication link also may include the quality and downlink wireless communication link of up-link wireless communication link Quality.
In some embodiments, the quality of the corresponding wireless communication link of first antenna may include up-link wireless communication chain The quality on road.
In an example of these embodiments, the quality of the up-link wireless communication link is specifically as follows by first The retransmission rate for the signal that antenna is sent.For the arbitrary signal sent by first antenna, when it reaches base station 200, base station 200 will do it error detection, then return to quality feedback information to terminal 100.If base station 200 receives correctly, the quality returned is anti- Feedforward information be confirmation response (Acknowledgement, ACK) or the first new data instruction (New Date Indicator, NDI), the first NDI is used to indicate terminal 100 and sends new data.If base station 200 receives mistake, the quality feedback information returned It is that negative response (Negative-acknowledgement, NACK)) or the 2nd NDI, the 2nd NDI are used to indicate 100 weight of terminal Pass data.
Terminal 100 can recorde the number of the signal sent by first antenna, and record the corresponding matter of these signals Measure feedback information.Then every a preset time period, the weight of the signal sent in the preset time period by first antenna is calculated Biography rate.In one example, the preset time period can rule of thumb or test determine.
In another example of these embodiments, the quality of the up-link wireless communication link is specifically as follows by The Block Error Rate (Block Error Rate, BER) for the signal that one antenna is sent.For the arbitrary data sent by first antenna Block (Block), if it is properly received by base station 200, base station 200 returns to the quality feedback information for indicating confirmation to terminal 100 (ACK or the instruction of the first new data)；If it is not properly received by base station 200, base station 200 is returned to terminal 100 indicates negative Quality feedback information (NACK or the second new data instruction).In this way, terminal 100 can be right according to its for any data block The quality feedback information answered determines if to be properly received by base station 200, and the data block is thought if not being correctly received For error data block.Terminal 100 can calculate Block Error Rate according to the first data block for passing data block total number and error.
In an example of these embodiments, the quality of the up-link wireless communication link is specifically as follows by first The spectrum efficiency (spectral efficiency) for the signal that antenna is sent.Base station 200 can pass through in dispatch terminal 100 Downlink Control Information (downlink control information, DCI) notifies terminal 100 to send modulation and the coding of signal Tactful (modulation and coding scheme, MCS) grade (index), can pass through MCS Index and spectrum efficiency The table of comparisons obtains spectrum efficiency.Wherein, table 1 shows the table of comparisons of a kind of MCS Index and spectrum efficiency.
Table 1:MCS index table for PUSCH with transform precoding and 64QAM
In order to avoid instantaneous short term signal breaks off the base, antenna is caused to switch frequent starting, terminal 100 can be when one is default Between section, calculate within a preset period of time by first antenna send multiple signals spectrum efficiency average value, as uplink The quality of wireless communication link.In one example, the preset time period can rule of thumb or test determine.In an example In, average value can be weighted average.Specifically, can divide to the preset time period, it is classified as multiple period of the day from 11 p.m. to 1 a.m Between section, each sub- period is properly termed as the unit time.For multiple unit time of the preset time period, difference is respectively set Weight.It is readily appreciated that, closer to the unit time at current time, the reference significance of corresponding spectrum efficiency is bigger.Cause This, for the multiple unit time, according to from front to back, the weight of unit time is sequentially increased on time dimension.With Preset time period is 3 seconds, for the unit time is 3.According to from front to back, which distinguishes on time dimension For the first unit time, the second unit time, third unit time.Can set the first unit time corresponding weight as Second unit time, corresponding weight wasThe third unit time, corresponding weight was
It should be noted that only the corresponding weight of unit time is illustrated above, and non-limiting.In reality In application, the corresponding weight of unit time can rule of thumb or test is specifically set.It will be sent in certain unit time The corresponding spectrum efficiency of signal multiplied by the unit time weight, then participate in adduction operation, then in conjunction with the preset time period The number of the signal of interior transmission, is calculated weighted average.
In an example of these embodiments, the quality of the up-link wireless communication link can be to pass through first antenna The retransmission rate of the signal of transmission, Block Error Rate, any two kinds of combination in spectrum efficiency.
In an example of these embodiments, the quality of the up-link wireless communication link can be to pass through first antenna The combination of the retransmission rate, Block Error Rate, spectrum efficiency of the signal of transmission.
In some embodiments, the quality of the corresponding wireless communication link of first antenna may include downlink wireless communication link The quality on road.
In an example of these embodiments, the quality of the downlink wireless communication link is specifically as follows by first Antenna received signal Signal to Interference plus Noise Ratio (signal to interference plus noise ratio, SINR).In order to avoid instantaneous signal breaks off the base, cause antenna switch frequent starting, terminal 100 can every a preset time period, It calculates by the average value of the SINR of the received multiple signals of first antenna in the preset time period, as the downlink channel radio Believe the quality of link.In one example, the preset time period can rule of thumb or test determine.In one example, The average value of SINR can be weighted average.The calculating of the weighted average of SINR can be with reference to above in connection with calculating frequency spectrum The description of efficiency weighted average, details are not described herein again.
In an example of these embodiments, the quality of the downlink wireless communication link is specifically as follows by first The Reference Signal Received Power (reference signal receiving power, RSRP) of antenna received signal.In order to It avoids instantaneous signal from breaking off the base, antenna is caused to switch frequent starting, terminal 100 can calculate pre- at this every a preset time period If by the average value of the RSRP of the received multiple signals of first antenna in the period, the matter as downlink wireless communication link Amount.In one example, the preset time period can rule of thumb or test determine.In one example, average value can be Weighted average.Calculating for the weighted average of RSRP can be with reference to retouching above in connection with calculating spectrum efficiency weighted average It states, details are not described herein again.
In an example of these embodiments, the quality of the downlink wireless communication link is specifically as follows by first The RSRP and SINR of antenna received signal.
In some embodiments, the quality of the corresponding wireless communication link of first antenna may include up-link wireless communication chain The quality on road and the quality of downlink wireless communication link.Specifically, the quality of the corresponding wireless communication link of first antenna can be with For at least one of the retransmission rate of the signal sent by first antenna, Block Error Rate, spectrum efficiency, and, pass through first antenna The combination of at least one of RSRP, SINR of received signal.For example, the matter of the corresponding wireless communication link of first antenna Amount is the retransmission rate of the signal sent by first antenna and the combination of the RSRP by first antenna received signal；Example again Such as, the quality of the corresponding wireless communication link of first antenna is the spectrum efficiency of the signal sent by first antenna and passes through the The combination of the SINR of one antenna received signal；Etc., it will not enumerate herein.
It should be noted that for convenience, in the embodiment of the present application, retransmission rate, Block Error Rate, frequency spectrum can be imitated Rate, SINR, RSRP are known as the quality index of wireless communication link, i.e. retransmission rate, Block Error Rate, spectrum efficiency, SINR, RSRP difference For a kind of quality index of wireless communication link.
Step 404, judge whether the quality of the corresponding wireless communication link of first antenna meets antenna switching entry condition.
Terminal is when monitoring the quality of the corresponding wireless communication link of first antenna, it can be determined that the matter of wireless communication link Whether amount meets antenna switching entry condition.If meeting antenna switching entry condition, 406 are thened follow the steps, if be unsatisfactory for Antenna switches entry condition, then continues the quality for monitoring the corresponding wireless communication link of first antenna.Wherein, antenna switching starting Condition can be preset in advance, be also possible to be issued by base station, can also be dynamic adjustment, the embodiment of the present invention is to day Line switches entry condition without limitation.
Specifically, antenna switching entry condition can be related with the quality of wireless communication link and wireless communication link, It can also be related with the type of service of terminal.
For example, in some embodiments, terminal monitoring be first antenna uplink communication links quality, if uplink communication The quality of link is retransmission rate, and antenna switching entry condition can be preset retransmission rate thresholding at this time.Step 404 includes judgement Whether the retransmission rate is greater than the retransmission rate thresholding.If the retransmission rate is greater than the retransmission rate thresholding, step 406 can be executed.
Retransmission rate directly affects time delay, the direct communication experiences of reflection user.When retransmission rate is greater than pre-determined threshold, open Dynamic antenna switching, can be improved the communication experiences of user.
If the quality of uplink communication links is Block Error Rate, antenna switching entry condition can be preset Block Error Rate door at this time Limit.Step 404 includes judging whether the Block Error Rate is greater than the Block Error Rate thresholding.If the Block Error Rate is greater than the Block Error Rate thresholding, Step 406 can then be executed.
Block Error Rate directly affects packet loss, directly reflects the communication experiences of user.When Block Error Rate is greater than pre-determined threshold, Start antenna switching, the communication experiences of user can be improved.
If the quality of uplink communication links is spectrum efficiency, antenna switching entry condition can be preset frequency spectrum effect at this time Rate thresholding.Step 404 includes judging whether the spectrum efficiency is less than the spectrum efficiency thresholding.If the spectrum efficiency is less than the frequency Spectrum efficiency thresholding can then execute step 406.
Spectrum efficiency directly affects handling capacity, directly reflects the communication experiences of user.It is less than pre- gating in spectrum efficiency In limited time, starting antenna switching, can be improved the communication experiences of user.
If the quality of uplink communication links is retransmission rate and Block Error Rate, antenna switching entry condition be can be preset at this time Retransmission rate thresholding and preset Block Error Rate thresholding.Step 404 include judge the retransmission rate whether be greater than the retransmission rate thresholding and Whether the Block Error Rate is greater than the Block Error Rate thresholding.In one example, if the retransmission rate is greater than the retransmission rate thresholding, alternatively, The Block Error Rate is greater than the Block Error Rate thresholding, then can execute step 406.In one example, if the retransmission rate is heavy greater than this Biography rate thresholding, and the Block Error Rate is greater than the Block Error Rate thresholding, then can execute step 406.
If the quality of uplink communication links is retransmission rate and spectrum efficiency, antenna switching entry condition be can be default at this time Retransmission rate thresholding and preset spectrum efficiency thresholding.Step 404 includes judging whether the retransmission rate is greater than the retransmission rate thresholding And whether the spectrum efficiency is less than the Block Error Rate thresholding.
In one example, if the retransmission rate is greater than the retransmission rate thresholding, alternatively, the spectrum efficiency is imitated less than the frequency spectrum Rate thresholding can then execute step 406.
In one example, if the retransmission rate is greater than the retransmission rate thresholding, and the spectrum efficiency is less than the spectrum efficiency Thresholding can then execute step 406.
If the quality of uplink communication links is Block Error Rate and spectrum efficiency, antenna switching entry condition be can be default at this time Block Error Rate thresholding and preset spectrum efficiency thresholding.Step 404 includes judging whether the Block Error Rate is greater than the Block Error Rate thresholding And whether the spectrum efficiency is less than the Block Error Rate thresholding.
In one example, if the Block Error Rate is greater than the Block Error Rate thresholding, alternatively, the spectrum efficiency is imitated less than the frequency spectrum Rate thresholding can then execute step 406.
In one example, if the Block Error Rate is greater than the Block Error Rate thresholding, and the spectrum efficiency is less than the spectrum efficiency Thresholding can then execute step 406.
If the quality of uplink communication links is retransmission rate, Block Error Rate and spectrum efficiency, the entry condition of antenna switching at this time can To be preset retransmission rate thresholding, preset Block Error Rate thresholding and preset spectrum efficiency thresholding.Step 404 includes judging that this is heavy Whether biography rate is greater than the retransmission rate thresholding, whether the Block Error Rate is greater than the Block Error Rate thresholding and whether the spectrum efficiency is less than this Block Error Rate thresholding.
In one example, if the retransmission rate is greater than the retransmission rate thresholding, alternatively, the Block Error Rate is greater than the Block Error Rate door Limit can then execute step 406 alternatively, the spectrum efficiency is less than the spectrum efficiency thresholding.
In one example, if the retransmission rate is greater than the retransmission rate thresholding, and the Block Error Rate is greater than the Block Error Rate thresholding, Step 406 can then be executed.If the retransmission rate is greater than the retransmission rate thresholding, and the spectrum efficiency is less than the spectrum efficiency door Limit, then can execute step 406.If the Block Error Rate is greater than the Block Error Rate thresholding, and the spectrum efficiency is less than the spectrum efficiency Thresholding can then execute step 406.
In one example, if the Block Error Rate is greater than the Block Error Rate thresholding, which is greater than the Block Error Rate thresholding, and The spectrum efficiency is less than the spectrum efficiency thresholding, then can execute step 406.
In these embodiments, can by the quality of the up-link wireless communication link of transmission antenna, come decide whether into The switching of row antenna, it is poor so as to the up-link wireless communication link in transmission antenna, and the downlink of transmission antenna wirelessly communicates The difference of the quality of the downlink wireless communication link of the quality and other antennas of link be unsatisfactory for switching signal difference threshold (such as When 6bp), so that it may start antenna switching.
In further embodiments, terminal monitoring be first antenna downstream communications link quality, if downlink communication chain The quality on road is SINR, and antenna switching entry condition can be preset SINR thresholding at this time.Step 404 includes judging the SINR Whether the SINR thresholding is less than.If the SINR is less than the SINR thresholding, step 406 can be executed.
What SINR directly affected data packet is decoded into power.According to the SINR for passing through first antenna received signal, to determine It is fixed whether to start antenna switching, so as to avoid needing constantly to retransmit in continuous decoding failure, antenna will not be triggered The case where switching.
If the quality of downstream communications link is RSRP, antenna switching entry condition can be preset RSRP thresholding at this time. Step 404 includes judging whether the RSRP is less than the RSRP thresholding.If the RSRP is less than the RSRP thresholding, step can be executed Rapid 406.
If the quality of downstream communications link is SINR and RSRP, antenna switching entry condition can be preset SINR at this time Thresholding and preset RSRP thresholding.Step 404 includes judging whether the RSRP is less than the RSRP thresholding.It should if the RSRP is less than RSRP thresholding can then execute step 406.
In one example, if the SINR is less than the SINR thresholding, alternatively, the RSRP is less than the RSRP thresholding, then may be used To execute step 406.
In one example, if the SINR is less than the SINR thresholding, and the RSRP is less than the RSRP thresholding, then can hold Row step 406.
In these embodiments, whether pre- gating can be met by the quality of the downlink wireless communication link of transmission antenna Limit so as in the second-rate of the downlink wireless communication link of transmission antenna, and is sent out to decide whether to carry out antenna switching The difference of the quality of the downlink wireless communication link of the quality and other antennas of the downlink wireless communication link of antennas is unsatisfactory for When switching signal difference threshold (such as 6bp), so that it may start antenna switching.
In further embodiments, terminal monitoring be first antenna uplink communication links quality and downstream communications link Quality.Specifically, the quality of uplink communication links can be at least one of retransmission rate, Block Error Rate, spectrum efficiency, downlink The quality of communication link can be at least one of SINR, RSRP.
For example, the quality of downstream communications link is SINR if the quality of uplink communication links is retransmission rate.Antenna is cut at this time Changing entry condition can be preset retransmission rate thresholding and preset SINR thresholding.Step 404 includes whether judging the retransmission rate Greater than the retransmission rate thresholding and judge whether the SINR is less than the SINR thresholding.
It in one example, can if the retransmission rate is greater than the retransmission rate thresholding or the SINR is less than the SINR thresholding To execute step 406.
In one example, if the retransmission rate is greater than the retransmission rate thresholding, and the SINR is less than the SINR thresholding, then may be used To execute step 406.
For example, the quality of downstream communications link is SINR if the quality of uplink communication links is retransmission rate and spectrum efficiency. Antenna switching entry condition can be preset retransmission rate thresholding, preset spectrum efficiency thresholding and SINR preset at this time Limit.Step 404 includes judging whether the retransmission rate is greater than the retransmission rate thresholding, judges whether the spectrum efficiency is less than frequency spectrum effect Rate thresholding and judge whether the SINR is less than the SINR thresholding.
In one example, if the retransmission rate is greater than the retransmission rate thresholding or the spectrum efficiency is less than the spectrum efficiency Thresholding or the SINR are less than the SINR thresholding, then can execute step 406.
In one example, if the retransmission rate is greater than the retransmission rate, and the spectrum efficiency is less than the spectrum efficiency thresholding, Step 406 can then be executed.Alternatively, if the retransmission rate is greater than the retransmission rate, and the SINR is less than the SINR thresholding, then it can be with Execute step 406.Alternatively, if the spectrum efficiency is less than the spectrum efficiency thresholding, and the SINR is less than the SINR thresholding, then may be used To execute step 406.
In one example, if the retransmission rate is greater than the retransmission rate thresholding, which is less than the spectrum efficiency door Limit, and the SINR is less than the SINR thresholding, then can execute step 406.
Antenna switching entry condition can be preset Block Error Rate thresholding and preset SINR thresholding, be also possible to preset Retransmission rate and preset RSRP thresholding, are also possible to preset spectrum efficiency thresholding and preset SINR thresholding, are also possible to pre- If retransmission rate thresholding, preset spectrum efficiency thresholding, preset SINR thresholding etc., will not enumerate herein.At one In example, for the quality index of multiple wireless communication links of terminal monitoring, when wherein at least one quality index is unsatisfactory for When its corresponding quality threshold, it is believed that the quality of the wireless communication link of terminal meets antenna switching entry condition.It can be with With reference to being described above, will not enumerate herein.In one example, for the matter of multiple wireless communication links of terminal monitoring Figureofmerit, when corresponding quality threshold is not satisfied in the quality index of the multiple wireless communication link, it is believed that The quality of the wireless communication link of terminal meets antenna switching entry condition.It specifically can be not another herein with reference to being described above One enumerates.
In some embodiments, before step 404, antenna selecting method provided by the embodiments of the present application further include: step Rapid 400, determine the present type of service of the terminal；The antenna switching trip bar is determined according to the present type of service Part.
It can be the various businesses according to the service quality (quality of service, QoS) of various businesses type Type distinguishes default antenna and switches entry condition.So that the quality when the corresponding wireless communication link of first antenna meets terminal When 100 present type of service respective antennas switch entry condition, antenna switching can star.
In some embodiments, the antenna switching entry condition of different types of service can be variety classes or different numbers The quality threshold of amount.For example, there are a, b, c, d, e quality thresholds for setting.The antenna of A type of service switches entry condition The antenna switching entry condition of e quality threshold, B type of service can be a, b, c, and the antenna of C type of service switches entry condition It can be a, d quality threshold, etc..
More specifically, it can be preset retransmission rate thresholding that antenna, which switches entry condition, accordingly by taking voice service as an example Ground, the quality of the wireless communication link for the first antenna that step 402 monitors are retransmission rate.
Voice service is more demanding to delay (corresponding retransmission rate), when to throughput demands lower (corresponding spectrum efficiency), And the real-time of voice service has certain serious forgiveness, and it is lower to error block rate requirement, so the antenna switching of voice service is opened Dynamic condition may include preset retransmission rate thresholding, with when the retransmission rate of the signal sent by transmission antenna is higher, Ke Yiqi Dynamic antenna switching, provides the experience of user speech communication.
Again by taking data service as an example, it may include preset retransmission rate thresholding, preset frequency that antenna, which switches entry condition, Spectrum efficiency thresholding, preset Block Error Rate thresholding.Correspondingly, the quality of the wireless communication link for the first antenna that step 402 monitors For retransmission rate, spectrum efficiency, Block Error Rate.When in the retransmission rate, spectrum efficiency, Block Error Rate of the signal sent by first antenna When any one is unsatisfactory for its correspondence thresholding, then the quality of the corresponding wireless communication link of first antenna meets antenna switching trip bar Part can star antenna switching.
Data service is higher to throughput demands, higher to error block rate requirement, also higher to delay requirement.Therefore, data The corresponding antenna switching entry condition of business includes retransmission rate thresholding, Block Error Rate thresholding, spectrum efficiency thresholding, to pass through transmission When the retransmission rate for the signal that antenna is sent is higher or Block Error Rate is higher or spectrum efficiency is lower, it can star antenna switching, provide The experience of user speech communication.
In further embodiments, the type of the antenna switching entry condition quality threshold that includes of different service types and Number can be identical, when the numerical value of quality threshold can be different.For example, there are a, b, c, d, e quality thresholds for setting.For D, E, These three types of service of F, antenna switches entry condition all can be a, b, c quality threshold.But three corresponding a, b, c The numerical value of quality threshold can be different.
More specifically, the antenna switching entry condition of the two all includes preset by taking voice service and data service as an example Retransmission rate thresholding, preset spectrum efficiency thresholding, preset Block Error Rate thresholding.But it is corresponding preset to compare voice service The corresponding spectrum efficiency thresholding of spectrum efficiency thresholding, data service is higher；Compare the corresponding preset Block Error Rate door of voice service Limit, the preset Block Error Rate thresholding of the correspondence of data service are lower.Because comparing voice service, data service to throughput demands with And it is higher to error block rate requirement.
In an example of these embodiments, step 400 can execute before step 402, can be according to current business The quality threshold of the corresponding antenna switching entry condition of type, determines the quality index monitored in step 402.With data service For, corresponding antenna switching entry condition includes retransmission rate thresholding, Block Error Rate thresholding, spectrum efficiency thresholding, then in step In 402, retransmission rate, Block Error Rate, spectrum efficiency can be specifically monitored.
In some embodiments, it can be under terminal according to base station oneself state that antenna switching entry condition, which can be base station, It sends out antenna and switches entry condition.For example, base station can be that terminal issues difference according to the variation of the quantity of the terminal of its access Antenna switch entry condition.For another example its preset antenna switching entry condition can be handed down to the end newly accessed by base station End；Etc., it will not enumerate herein.
In these embodiments, the switching of the state participation terminal transmission antenna for the base station that terminal is accessed, can be at end In the case where holding the wireless communication link of each antenna poor, avoid frequently triggering antenna switching starting.
In some embodiments, antenna switching entry condition can dynamically can adjust antenna switching trip bar for terminal Part, for example, dynamic adjustment can be carried out according to the time.More specifically, day can be adjusted in one day, when entering at morning 0 Line switches entry condition；When entering 6:00 AM, then adjust antenna switching entry condition.It is readily appreciated that, in one day, one As network state between 0 point -6:00 AM of morning it is preferable, and the network state of other times section is relatively poor.Accordingly, dynamic is adjusted Line all day switches entry condition, can avoid frequently triggering in the case where the wireless communication link of each antenna of terminal is poor Antenna switching starting.
The embodiment of the present application does not limit the numerical value of the quality threshold of wireless communication link specifically.
In some embodiments, the numerical value of the quality threshold of wireless communication link can be capable of providing normally for terminal 100 The wireless communication link quality threshold of radio communication service, specifically can rule of thumb or test obtains.
Step 406, when the quality of the corresponding wireless communication link of first antenna meets antenna switching entry condition, measurement By first antenna received signal quality and pass through the second antenna received signal quality.
When the quality of the corresponding wireless communication link of first antenna meets antenna switching entry condition, illustrate first antenna Corresponding wireless communication link it is second-rate, the wireless communication between terminal 100 and base station 200 may be influenced.It at this time can be with Start the measurement to the corresponding downlink wireless communication link of each antenna in measuring assembly.The measuring assembly is terminal 100 The set that two or more antennas are constituted, wherein including first antenna and the second antenna.For in the measuring assembly Any antenna, the measurement to its corresponding downlink wireless communication link is specifically, measurement passes through its received signal quality.
For any antenna in the measuring assembly, can measure in preset time period through its received signal matter Amount, break off the base to avoid instantaneous short term signal and the frequent switching of antenna that causes.Preset time period herein is properly termed as first Preset time.The length of first preset time can be 3 seconds, or other times length.In practical application, specifically may be used With rule of thumb or test be adjusted.For convenience of description, in the embodiment of the present application, pass through first in the first preset time Antenna received signal quality is known as the first received signal quality, passes through the second antenna received signal in the first preset time Quality is known as the second received signal quality.
Specifically, by taking first antenna as an example, it is readily appreciated that, in the first preset time, it can receive by first antenna more A signal, can measure the quality of multiple signal, then calculate the average value of multiple signal quality, to obtain the first reception Signal quality.The received signal quality of other antennas of the second received signal quality and the measuring assembly can refer to aforementioned Mode is calculated.
In some embodiments, the average value of multiple signal qualities can be weighted average.Multiple signal qualities herein Weight can refer to the introduction about spectrum efficiency weight in step 402, details are not described herein again.
By taking first antenna as an example, can will in the first preset time the corresponding each received signal quality of first antenna multiplied by The weight of unit time where the respective time of reception, then sums it up, then divided by the number of signal, obtained weighted average can As the first received signal quality.Specifically, set the first received signal quality asIt can be calculated by formula (1) It arrives.
Wherein, n indicates the corresponding number for receiving signal of first antenna in the first preset time；ZiIndicate pre- first If passing through the quality of received i-th of the signal of first antenna in the time；θ indicates that each unit time of the first preset time is constituted Set；The time of reception of i-th of signal is set within j-th of unit time of the first preset time, aijIndicate i-th of signal The time of reception where unit time weight.
The received signal quality of other antennas of the second received signal quality and the measuring assembly can refer to above-mentioned Mode is calculated.
In some embodiments, for any antenna in the measuring assembly, received signal quality is specially The SINR of its received signal.In one example, when in step 402 the corresponding wireless communication link quality of first antenna be SINR, and antenna is greater than by the SINR of first antenna received signal in the first preset time and is switched in entry condition When SINR thresholding, step 402 can be executed again.
In some embodiments, for any antenna in the measuring assembly, received signal quality is specially The RSRP of its received signal.In one example, when in step 402 the corresponding wireless communication link quality of first antenna be RSRP, and antenna is greater than by the RSRP of first antenna received signal in the first preset time and is switched in entry condition When RSRP thresholding, step 402 can be executed again.
In some embodiments, for any antenna in the measuring assembly, received signal quality is specially The SINR and RSRP of its received signal.In one example, when the corresponding wireless communication link matter of first antenna in step 402 Amount is SINR and RSRP, and in the first preset time, is switched by the SINR of first antenna received signal greater than antenna SINR thresholding in entry condition, and be greater than in antenna switching entry condition by the RSRP of first antenna received signal When RSRP thresholding, step 402 can be executed again.
In some embodiments, when the measuring assembly is the collection that two or more the antennas including first antenna are constituted When conjunction, the measuring assembly can be divided into first antenna and measurement Subset, and the measurement Subset is first in the measuring assembly The set that antenna except antenna is constituted.Second antenna is not necessarily referring to the specific antenna of certain root, and refers to according to specific selector bar The antenna that part is selected from the measurement Subset.Specifically, step 406 can also include: to measure in the first preset time Pass through each antenna received signal quality in the measurement Subset；According to received by each antenna in the measurement Subset Signal quality is ranked up each antenna in the measurement Subset；Second antenna is determined according to the result of sequence.
In one example, can according to by each antenna received signal quality in the measurement Subset from high to low Sequence, each antenna in the measurement Subset is ranked up；Using the antenna to rank the first as second antenna.
In one example, can according to by each antenna received signal quality in the measurement Subset from low to high Sequence, each antenna in the measurement Subset is ranked up；The antenna of last bit will be come as second antenna.
In one example, by each antenna received signal quality in the measurement Subset be specially SINR and RSRP.In this example embodiment, for any antenna, SINR compares its RSRP, has higher priority.That is, for any two Root antenna, such as A antenna and B antenna, when the SINR of the reception signal of A antenna is greater than the SINR of reception signal of B antenna, nothing By the two reception signal RSRP who high who is low, so that it may think that the quality of the reception signal of A antenna is greater than the reception of B antenna and believes Number quality.When the SINR of the reception signal of A antenna is equal to the RSRP of reception signal of B antenna, if the reception of A antenna is believed Number RSRP be greater than B antenna reception signal RSRP, then it is believed that the quality of the receptions signal of A antenna connecing greater than B antenna The quality of the collection of letters number.Therefore, in basis by each antenna received signal quality in the measurement Subset, to measurement When each antenna being concentrated to be ranked up, according to the corresponding SINR of each antenna in the measurement Subset, in the measurement Subset Each antenna is ranked up；When two in the measurement Subset or two or more the corresponding SINR of antenna are equal, further according to The corresponding RSRP of SINR equal antenna is ranked up these antenna.
Step 408, whether judgement is greater than by the second antenna received signal quality through first antenna received signal Quality.
In some embodiments, judgment step 406 measures whether the second obtained received signal quality is greater than step 406 survey It measures to the first received signal quality.If the second received signal quality is greater than the first received signal quality, illustrate the second antenna Downlink wireless communication link is better than the downlink wireless communication link of first antenna, executes step 410.If the first received signal quality More than or equal to the second received signal quality, step 402 is executed.
In an example of these embodiments, the first received signal quality is to pass through the first antenna received signal SINR, the second received signal quality is by the SINR of the second antenna received signal.Step 408 specifically includes judgement Whether it is greater than the SINR by the first antenna received signal by the SINR of the second antenna received signal. When the judgment result is yes, step 410 is executed；Otherwise, step 402 is executed.
In an example of these embodiments, the first received signal quality is to pass through the first antenna received signal RSRP, the second received signal quality is by the RSRP of the second antenna received signal.Step 408 specifically includes judgement Whether it is greater than the RSRP by the first antenna received signal by the RSRP of the second antenna received signal.When sentencing Disconnected result is when being, to execute step 410；Otherwise, step 402 is executed.
In an example of these embodiments, the first received signal quality is to pass through the first antenna received signal SINR and RSRP, the second received signal quality is by the SINR and RSRP of the second antenna received signal.Step 408 Specifically include whether judgement is greater than by the SINR of the second antenna received signal through the received letter of the first antenna Number SINR, whether be greater than by the RSRP of the second antenna received signal through the first antenna received signal RSRP.When judging result, which is, is, step 410 is executed；Otherwise, step 402 is executed.
In these implementations, whether the first reception signal is greater than according to the second received signal quality, to decide whether Switch antenna, it can be to avoid new transmission antenna to be switched to the antenna also poorer than the downlink wireless communication link of primary antennas On.
In some embodiments, step 408 further includes judging whether the second received signal quality meets default switching condition, If the second received signal quality meets default switching condition, and is greater than the first received signal quality, step 410 is executed.Otherwise, Execute step 402.
In an example of these embodiments, the first received signal quality is to pass through the first antenna received signal SINR, the second received signal quality is by the SINR of the second antenna received signal.Default switching condition includes pre- If switching SINR thresholding.Step 408 specifically further includes whether judgement is greater than by the SINR of the second antenna received signal It is default by the way that whether the SINR of the second antenna received signal is greater than by the SINR of the first antenna received signal Switch SINR thresholding.When judging result, which is, is, step 410 is executed；Otherwise, step 402 is executed.
In an example of these embodiments, the first received signal quality is to pass through the first antenna received signal RSRP, the second received signal quality is by the RSRP of the second antenna received signal.Default switching condition includes pre- If switching RSRP thresholding.Step 408 specifically further includes whether judgement is greater than by the RSRP of the second antenna received signal It is default by the way that whether the RSRP of the second antenna received signal is greater than by the RSRP of the first antenna received signal Switch RSRP thresholding.When judging result, which is, is, step 410 is executed；Otherwise, step 402 is executed.
In an example of these embodiments, the first received signal quality is to pass through the first antenna received signal SINR and RSRP, the second received signal quality is by the SINR and RSRP of the second antenna received signal.It is default to cut Changing condition includes default switching SINR thresholding and default switching RSRP thresholding.Step 408 specifically further includes judgement by described the Whether the SINR of two antenna received signals is greater than the SINR by the first antenna received signal, passes through described second day Whether the RSRP of line received signal is greater than the RSRP by the first antenna received signal, is connect by second antenna Whether the SINR of the signal of receipts is greater than default switching SINR thresholding, and whether the RSRP by the second antenna received signal is big In default switching RSRP thresholding.When judging result, which is, is, step 410 is executed；Otherwise, step 402 is executed.
In these implementations, whether the first reception signal is greater than according to the second received signal quality and second is connect Receive whether signal quality meets switching condition, to decide whether to switch antenna, it is possible to prevente effectively from new transmission antenna is switched to On the poor antenna of downlink wireless communication link.
Step 410, signal is sent by first antenna and the second antenna in turn.
Mass ratio by the received signal of the second antenna is high by the quality of the received signal of first antenna.Terminal 100 send signal by the second antenna and first antenna in turn, further to assess the quality for the signal that the two is sent.
It is in some embodiments, described that send signal in turn by first antenna and the second antenna be specially when different It carves and signal is sent by first antenna and the second antenna respectively.
In an example of these embodiments, the first antenna and the second antenna send in different sending instants and believe Number include by first antenna send the first signal, pass through the second antenna transmission second signal；Wherein, when the transmission of the first signal It carves adjacent with the sending instant of second signal.
Step 412, the signal quality sent by first antenna and the signal quality sent by the second antenna are measured.
When sending signal in turn by first antenna and the second antenna, can measure in preset time period first antenna and The corresponding transmission signal quality of second antenna, break off the base to avoid instantaneous short term signal and the frequent switching of antenna that causes. Preset time period herein is properly termed as the second preset time period.The length of second preset time period can be 3 seconds, or Other times length.In practical application, specifically can rule of thumb or test be adjusted.For convenience of description, in the application In embodiment, the first transmission signal quality is known as by the signal quality that first antenna is sent in the second preset time period, The second transmission signal quality is known as by the signal quality that the second antenna is sent in second preset time period.
Specifically, by taking first antenna as an example, it is readily appreciated that, it is transmittable more by the second antenna in the second preset time A signal, can measure the quality of multiple signal, then calculate the average value of multiple signal quality, to obtain the first transmission Signal quality.Second transmission signal quality can be calculated with reference to foregoing manner.
In one example, the average value of multiple signal quality can be weighted average.Multiple signal qualities herein Weight can refer to the introduction about spectrum efficiency weight in step 402, details are not described herein again.
By taking first antenna as an example, the corresponding each transmission signal quality of first antenna it can will multiply in the second preset time period It with the weight of the unit time where respective sending instant, then sums it up, then divided by the number for sending signal, obtained weighting is flat Mean value can be used as the first transmission signal quality.Specifically, set first transmission signal quality asIt can pass through formula (2) It is calculated.
Wherein, m indicates the corresponding number for sending signal of first antenna in the second preset time period；Z'iIt indicates the The quality of corresponding i-th of transmission signal of first antenna in two preset time periods；θ ' indicates each list of the second preset time period The set that the position time is constituted；The sending instant of i-th of signal is set within j-th of unit time of the second preset time period, a'ij Indicate the weight of the unit time where the sending instant of i-th of signal.
Second transmission signal quality can be calculated with reference to aforesaid way.
In one example, in step 412, for being sent out in second preset time period by the first antenna The either signal in multiple signals sent, such as the first signal, its available MCS grade (MCS index), and according to first The MCS grade of signal determines the corresponding spectrum efficiency of the first signal.MCS grade specific acquisition modes and determine spectrum efficiency Mode can refer to introduction of this specification to step 402, and details are not described herein again.The corresponding Quality Feedback of the first signal is obtained again Information.Quality feedback information is specifically as follows any one of ACK, NACK, new data instruction.The introduction of quality feedback information can With the introduction with reference to this specification to step 402, details are not described herein.
ACK can be set or be used to indicate the corresponding discrete value 1 of new data instruction for sending new data, NACK is set or be used for Indicate that the new data for retransmitting data indicates corresponding discrete value 0.By the spectrum efficiency of the first signal multiplied by the corresponding matter of the first signal The corresponding discrete value of feedback information is measured, the quality of the first signal is obtained.In other words, when the corresponding quality feedback information of the first signal For ACK or when being used to indicate the new data instruction of transmission new data, the quality of the first signal is its spectrum efficiency；When the first letter When number corresponding quality feedback information is NACK or is used to indicate the new data instruction of re-transmission, the quality of the first signal is 0.
With reference to the above method, it is available sent in second preset time period by the first antenna it is multiple The quality of signal, the Mass Calculation for being then based on multiple signals obtain the first transmission signal quality, and specific calculation can join It is admitted to an exemplary introduction.
Second transmission signal quality can be obtained with reference to aforesaid way.
Step 414, whether judgement is greater than the signal sent by first antenna by the signal quality that the second antenna is sent Quality.
Specifically, judging whether the second transmission signal is greater than the first transmission signal quality.If the second transmission signal quality is big Signal quality is sent in first, illustrates up-link wireless communication link of the up-link wireless communication link than first antenna of the second antenna It is good, 416 are thened follow the steps, i.e., transmission antenna the second antenna is new as terminal 100, to send signal.
If first, which sends signal quality, is greater than or equal to the second transmission signal quality, illustrate that the up-link wireless of the second antenna is logical Believe that the up-link wireless communication link of link and first antenna may be poor.In some embodiments, step 418 can be executed, Signal is sent by first antenna and the second antenna in turn.So as to logical in the up-link wireless of first antenna and the second antenna In the case where believing that link is poor, increase the probability of the signal successful launch of terminal 100.It in further embodiments, can be whole Only first day and the second antenna send signal in turn, and individually send signal by first antenna or the second antenna.
It is pre- by the way that whether the quality of the corresponding wireless communication link of first antenna meets in scheme provided in this embodiment Gating limit (rather than be whether met by the difference of first antenna received signal strength and the second antenna received signal strength it is default Thresholding), to determine whether the measurement of starting first antenna and the second antenna received signal quality；When the second antenna receives signal matter When amount is greater than first antenna received signal quality, i.e., when the quality of the corresponding downlink wireless communication link of the second antenna is greater than first When the quality of the corresponding downlink wireless communication link of antenna, signal is sent by first antenna and the second antenna in turn, and judge The two sends the quality of signal, and then determines to send signal or the second antenna and first antenna wheel subsequently through the second antenna Stream sends signal.Scheme provided in this embodiment can select downlink and uplink from the mutiple antennas of communication equipment The preferable antenna in road, and using the antenna as transmission antenna, improve user's communication experiences.And side provided in this embodiment The problem of case overcomes when two antenna downlink signal strength differences are smaller, can not switch antenna.
The embodiment of the present application also provides a kind of antenna selecting methods, are applied to terminal, the terminal includes first antenna With the second antenna, with reference to Fig. 5, which includes the following steps.
502, the quality of the corresponding wireless communication link of the first antenna is monitored.
Step 502 is referred to the realization of the step 402 in Fig. 4, and details are not described herein.
504, it when the quality of the wireless communication link meets antenna switching entry condition, is surveyed in the first preset time Measure the first received signal quality of the first antenna and the second received signal quality of second antenna.
The step 404 and step 406 that step 504 is referred in Fig. 4 realize that details are not described herein.
506, when second received signal quality is greater than first received signal quality, in the second preset time Signal is sent to base station in turn by the first antenna and second antenna.
Step 506 can be with reference to the step 408 and step 410 realization in Fig. 4, and details are not described herein.
508, the first transmission signal quality and described second of measurement first antenna in second preset time The second of antenna sends signal quality.
Step 508 can realize that details are not described herein with reference to step 412 in Fig. 4.
510, when described second, which sends signal quality, is greater than the first transmission signal quality, second antenna is used Signal is sent to the base station.
Step 510 can realize that details are not described herein with reference to step 414 in Fig. 4 and step 416.
In some embodiments, antenna selecting method described in Fig. 5 further include: step 512, when it is described first send signal When quality is greater than or equal to the second transmission signal quality, by the first antenna and second antenna in turn to described Base station sends signal.
Step 512 can realize that details are not described herein with reference to step 414 in Fig. 4 and step 418.
In some embodiments, the quality of the wireless communication link include up-link wireless communication link quality and/or The quality of downlink wireless communication link.
In these embodiments, for the quality of up-link wireless communication link, it can refer to and be shut in Fig. 4 step 402 The quality introduction of row wireless communication link.It, can be with reference to related in Fig. 4 step 402 for the quality of downlink wireless communication link The quality introduction of downlink wireless communication link, details are not described herein.
In some embodiments, the wireless communication link is up-link wireless communication link, the up-link wireless communication chain The quality on road is retransmission rate and/or spectrum efficiency, and details are not described herein.
In these embodiments, Fig. 4 step 402 can be referred to for up-link wireless communication link, retransmission rate, spectrum efficiency In the introduction in relation to up-link wireless communication link, details are not described herein.
In an example of these embodiments, the quality of the up-link wireless communication link is retransmission rate, the antenna Switching entry condition is that the retransmission rate is greater than retransmission rate thresholding.Specifically refer to related antenna switching starting in Fig. 4 step 404 The introduction of condition, details are not described herein.
In another example of these embodiments, the quality of the up-link wireless communication link is spectrum efficiency, described It is that the spectrum efficiency is greater than spectrum efficiency thresholding that antenna, which switches entry condition,.Specifically refer to related antenna in Fig. 4 step 404 Switch the introduction of entry condition, details are not described herein.
In some embodiments, the wireless communication link is downlink wireless communication link, the downlink wireless communication link The quality on road is Signal to Interference plus Noise Ratio SINR and Reference Signal Received Power RSRP；The antenna switches entry condition The SINR is less than SINR thresholding and/or the RSRP is less than RSRP thresholding.Specifically refer to related antenna in Fig. 4 step 404 Switch the introduction of entry condition, details are not described herein.
In some embodiments, described when the quality of the wireless communication link meets antenna switching entry condition, The first received signal quality of the first antenna is measured in the first preset time and the second of second antenna receives letter Before number quality；Antenna selecting method shown in fig. 5 further include: step 500, the present type of service for determining the terminal；Root The antenna switching entry condition is determined according to the present type of service.
Step 500 can refer in Fig. 4 400 introduction, and details are not described herein.
In some embodiments, first received signal quality is SINR and RSRP；Second received signal quality For SINR and RSRP.
It is in some embodiments, described when second received signal quality is greater than first received signal quality, Signal is sent to the base station in turn by the first antenna and second antenna in the second preset time, comprising: when Second received signal quality is greater than first received signal quality, and when meeting default switching condition, described second Signal is sent to the base station in turn by the first antenna and second antenna in preset time.It specifically can be with reference to figure The introduction of step 408 and step 410 in 4, details are not described herein.
In some embodiments, described first send signal quality and described second send signal quality by spectrum efficiency and Quality feedback information determines.Specifically can be with reference to the introduction of step 412 in Fig. 4, details are not described herein.
In an example of these embodiments, the quality feedback information includes following any:
ACK, NACK, new data instruction.
It is indicated about ACK, NACK, new data, it can be with reference to step 412 in Fig. 4 to Jie of ACK, NACK, new data instruction It continues.
In antenna selecting method provided by the embodiments of the present application, the corresponding wireless communication link of first antenna can be passed through It (rather than is the difference by first antenna received signal strength and the second antenna received signal strength that whether quality, which meets pre-determined threshold, Whether value meets pre-determined threshold), to determine whether the measurement of starting first antenna and the second antenna received signal quality；When second When antenna received signal quality is greater than first antenna received signal quality, i.e., when the corresponding downlink wireless communication link of the second antenna Quality be greater than the corresponding downlink wireless communication link of first antenna quality when, sent out in turn by first antenna and the second antenna The number of delivering letters, and judge that the two sends the quality of signal, and then determine to send signal or the second antenna subsequently through the second antenna Signal is sent in turn with first antenna.Scheme provided in this embodiment can select downlink from the mutiple antennas of communication equipment Link and the preferable antenna of uplink, and using the antenna as transmission antenna, improve user's communication experiences.And this reality Apply the problem of scheme that example provides overcomes when two antenna downlink signal strength differences are smaller, can not switch antenna.
The embodiment of the present application provides a kind of terminal 600.As shown in fig. 6, the terminal 600 includes processor 610, storage Device 620, first antenna 630a and the second antenna 630b；Wherein,
The processor 610 is used to monitor the quality of the corresponding wireless communication link of the first antenna 630a；
The processor 610 is also used to when the quality of the wireless communication link meets antenna switching entry condition, The second of interior the first received signal quality for measuring the first antenna 630a of first preset time and the second antenna 630b Received signal quality；
The processor 610 is used for when second received signal quality is greater than first received signal quality, Signal is sent to base station in turn by the first antenna 630a and the second antenna 630b in second preset time；
The processor 610 is also used to measure the first transmission of the first antenna 630a in second preset time Second transmission signal quality of signal quality and the second antenna 630b；
The processor 610 is also used to when described second sends signal quality and be greater than the first transmission signal quality, Signal is sent to the base station using the second antenna 630b.
In some embodiments, the processor 610 is also used to send signal quality more than or equal to institute when described first When stating the second transmission signal quality, sent in turn to the base station by the first antenna 630a and the second antenna 630b Signal.
In some embodiments, the quality of the wireless communication link include up-link wireless communication link quality and/or The quality of downlink wireless communication link.
In some embodiments, the wireless communication link is up-link wireless communication link, the up-link wireless communication chain The quality on road is retransmission rate and/or spectrum efficiency.
In an example of these embodiments, the quality of the up-link wireless communication link is retransmission rate, the antenna Switching entry condition is that the retransmission rate is greater than retransmission rate thresholding；Or, the quality of the up-link wireless communication link is frequency spectrum effect Rate, the antenna switching entry condition are that the spectrum efficiency is greater than spectrum efficiency thresholding.
In some embodiments, the wireless communication link is downlink wireless communication link, the downlink wireless communication link The quality on road is Signal to Interference plus Noise Ratio SINR and Reference Signal Received Power RSRP；The antenna switches entry condition The SINR is less than SINR thresholding and/or the RSRP is less than RSRP thresholding.
In some embodiments, described when the quality of the wireless communication link meets antenna switching entry condition, Measured in the first preset time the first antenna 630a the first received signal quality and the second antenna 630b Before two received signal qualities；The processor 610 is also used to determine the present type of service of the terminal；According to described current Type of service determines the antenna switching entry condition.
In some embodiments, first received signal quality is SINR and RSRP；Second received signal quality For SINR and RSRP.
In some embodiments, the processor 610 is also used to be greater than described first when second received signal quality Received signal quality, and when meeting default switching condition, in second preset time by the first antenna 630a and The second antenna 630b sends signal to the base station in turn.
In some embodiments, described first send signal quality and described second send signal quality by spectrum efficiency and Quality feedback information determines.
In an example of these embodiments, the quality feedback information includes following any:
ACK, NACK, new data instruction.
The function of the component of terminal 600 is referred to Fig. 4 or embodiment of the method shown in fig. 5 is realized, does not or else go to live in the household of one's in-laws on getting married this time It states.
In terminal provided by the embodiments of the present application, can by the quality of the corresponding wireless communication link of first antenna whether Meet pre-determined threshold (rather than is whether full by the difference of first antenna received signal strength and the second antenna received signal strength Sufficient pre-determined threshold), to determine whether the measurement of starting first antenna and the second antenna received signal quality；When the second antenna receives When signal quality is greater than first antenna received signal quality, i.e., when the quality of the corresponding downlink wireless communication link of the second antenna is big When the quality of the corresponding downlink wireless communication link of first antenna, signal is sent by first antenna and the second antenna in turn, And judge that the two sends the quality of signal, and then determine to send signal or the second antenna and first subsequently through the second antenna Antenna sends signal in turn.Scheme provided in this embodiment can be selected from the mutiple antennas of communication equipment downlink and The preferable antenna of uplink, and using the antenna as transmission antenna, improve user's communication experiences.And the present embodiment mentions The problem of scheme of confession overcomes when two antenna downlink signal strength differences are smaller, can not switch antenna.
The embodiment of the present application also provides a kind of antenna selection apparatus 700, described device 700 is set to terminal, the end End includes first antenna and the second antenna.With reference to Fig. 7, described device 700 include: monitoring unit 720, the first measuring unit 730, Transmission unit 740, the second measuring unit 750.Wherein,
Monitoring unit 720, for monitoring the quality of the corresponding wireless communication link of the first antenna；
First measuring unit 730, for when the quality of the wireless communication link meet antenna switching entry condition when, The first received signal quality of the measurement first antenna and the second of second antenna receive signal in first preset time Quality；
Transmission unit 740, for when second received signal quality is greater than first received signal quality, the Signal is sent to base station in turn by the first antenna and second antenna in two preset times；
Second measuring unit 750, first for measuring the first antenna in second preset time sends letter The second of number quality and second antenna sends signal quality；
The transmission unit 740 is also used to send signal quality greater than the first transmission signal quality when described second When, signal is sent to the base station using second antenna.
In some embodiments, described device 700 further includes determination unit 710.Work as the wireless communication link described Quality meet antenna switching entry condition when, measured in the first preset time the first antenna first receive signal matter Before second received signal quality of amount and second antenna；The determination unit 710 is for determining the current of the terminal Type of service；The antenna switching entry condition is determined according to the present type of service.
It should be understood that monitoring unit 720 can be used for executing 402 in Fig. 4, the first measuring unit 730 can be used for 406 in Fig. 4 are executed, transmission unit 740 can be used for executing 410,416,418 in Fig. 4, and the second measuring unit 750 can be with 412 and determination unit 710 for executing in Fig. 4 can be used for executing 400 in Fig. 4.Above to each in Fig. 4 Step is set forth, and is not repeated herein and is repeated.
Mainly antenna selection apparatus provided by the embodiments of the present application is described from the angle of method flow above.It can With understanding, in order to realize the above functions, it comprises execute the corresponding hardware configuration of each function and/or soft for each terminal Part module.Those skilled in the art should be readily appreciated that, described in conjunction with the examples disclosed in the embodiments of the present disclosure Unit and algorithm steps, the application can be realized with the combining form of hardware or hardware and computer software.Some function is studied carefully Unexpectedly it is executed in a manner of hardware or computer software driving hardware, the specific application and design constraint depending on technical solution Condition.Professional technician can use different methods to achieve the described function each specific application, but this Kind is realized it is not considered that exceeding scope of the present application.
The embodiment of the present application can embodiment of the method according to Fig.4, and embodiment of the method shown in fig. 5 to terminal etc. The division for carrying out functional module, for example, each functional module of each function division can be corresponded to, can also by two or two with On function be integrated in a processing module.Above-mentioned integrated module both can take the form of hardware realization, can also adopt It is realized with the form of software function module.It should be noted that being schematically, only to the division of module in the embodiment of the present application Only a kind of logical function partition, there may be another division manner in actual implementation.
In device provided by the embodiments of the present application, can by the quality of the corresponding wireless communication link of first antenna whether Meet pre-determined threshold (rather than is whether full by the difference of first antenna received signal strength and the second antenna received signal strength Sufficient pre-determined threshold), to determine whether the measurement of starting first antenna and the second antenna received signal quality；When the second antenna receives When signal quality is greater than first antenna received signal quality, i.e., when the quality of the corresponding downlink wireless communication link of the second antenna is big When the quality of the corresponding downlink wireless communication link of first antenna, signal is sent by first antenna and the second antenna in turn, And judge that the two sends the quality of signal, and then determine to send signal or the second antenna and first subsequently through the second antenna Antenna sends signal in turn.Scheme provided in this embodiment can be selected from the mutiple antennas of communication equipment downlink and The preferable antenna of uplink, and using the antenna as transmission antenna, improve user's communication experiences.And the present embodiment mentions The problem of scheme of confession overcomes when two antenna downlink signal strength differences are smaller, can not switch antenna.
The embodiment of the present application provides a kind of integrated circuit for day line options.The integrated circuit includes memory, The processor coupled with memory.Memory can store instruction and antenna switching entry condition.Processor is deposited for executing The instruction of reservoir storage, to realize Fig. 4 or antenna selecting method shown in fig. 5.
The embodiment of the present application provides a kind of chip system, and the chip system includes: processor, and the processor is used for Execute instructions so that the terminal for being equipped with the chip system executes Fig. 4 or antenna selecting method shown in fig. 5.
It is understood that the processor in embodiments herein can be central processing unit (central Processing unit, CPU), it can also be other general processors, digital signal processor (digital signal Processor, DSP), it is specific integrated circuit (application specific integrated circuit, ASIC), existing Field programmable gate array (field programmable gate array, FPGA) or other programmable logic device, crystal Pipe logical device, hardware component or any combination thereof.General processor can be microprocessor, be also possible to any conventional Processor.
Memory in embodiments herein with volatile memory (volatile memory) or non-volatile can be deposited Reservoir, such as register etc..Specifically, volatile memory refers to that after power supply supply discontinuity, the data of internal storage will The memory of loss.Currently, volatile memory is mainly random access memory (random access memory, RAM), Including static random access memory (static RAM, SRAM) and dynamic random access memory (dynamic RAM, DRAM).Nonvolatile memory refers to the storage that will not therefore lose even if power supply supply discontinuity, the data of internal storage Device.Common nonvolatile memory includes that read-only memory (read only memory, ROM), CD, disk, solid-state are hard Disk and the various storage cards etc. for being based on flash memory (flash memory) technology.
Method and step in embodiments herein can be realized by way of hardware, can also be executed by processor The mode of software instruction is realized.Software instruction can be made of corresponding software module, software module can be stored on Machine access memory, flash memory, read-only memory, programmable read only memory (programmable rom, PROM), it is erasable can Program read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM), the storage of register, hard disk, mobile hard disk, CD-ROM or any other form well known in the art is situated between In matter.A kind of illustrative storage medium is coupled to processor, thus enable a processor to from the read information, and Information can be written to the storage medium.Certainly, storage medium is also possible to the component part of processor.Pocessor and storage media It can be located in ASIC.In addition, the ASIC can be located in terminal.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.The computer program Product includes one or more computer instructions.When loading on computers and executing the computer program instructions, all or It partly generates according to process or function described in the embodiment of the present application.The computer can be general purpose computer, dedicated meter Calculation machine, computer network or other programmable devices.The computer instruction can store in computer readable storage medium In, or transmitted by the computer readable storage medium.The computer instruction can be from a web-site, meter Calculation machine, server or data center are (such as red by wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless Outside, wirelessly, microwave etc.) mode transmitted to another web-site, computer, server or data center.The calculating Machine readable storage medium storing program for executing can be any usable medium or include one or more usable mediums that computer can access The data storage devices such as integrated server, data center.The usable medium can be magnetic medium, (for example, floppy disk, hard Disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state hard disk (solid state disk, SSD)) Deng.
It is understood that the area that the various digital numbers involved in embodiments herein only carry out for convenience of description Point, it is not intended to limit the range of embodiments herein.

Claims (25)

1. a kind of antenna selecting method, which is characterized in that be applied to terminal, the terminal includes first antenna and the second antenna； The described method includes:
Monitor the quality of the corresponding wireless communication link of the first antenna；
When the quality of the wireless communication link meets antenna switching entry condition, described the is measured in the first preset time Second received signal quality of the first received signal quality of one antenna and second antenna；
When second received signal quality is greater than first received signal quality, by described in the second preset time First antenna and second antenna send signal to base station in turn；
Measurement the first of the first antenna sends the of signal quality and second antenna in second preset time Two send signal quality；
When described second, which sends signal quality, is greater than described first and sends signal quality, using second antenna to the base It stands and sends signal.
2. the method according to claim 1, wherein the method also includes:
When described first, which sends signal quality, is greater than or equal to described second and sends signal quality, by the first antenna and Second antenna sends signal to the base station in turn.
3. the method according to claim 1, wherein the quality of the wireless communication link includes that up-link wireless is logical Believe the quality of link and/or the quality of downlink wireless communication link.
4. the method according to claim 1, wherein the wireless communication link be up-link wireless communication link, The quality of the up-link wireless communication link is retransmission rate and/or spectrum efficiency.
5. according to the method described in claim 4, it is characterized in that, the quality of the up-link wireless communication link be retransmission rate, The antenna switching entry condition is that the retransmission rate is greater than retransmission rate thresholding；Or,
The quality of the up-link wireless communication link is spectrum efficiency, and the antenna switching entry condition is that the spectrum efficiency is big In spectrum efficiency thresholding.
6. the method according to claim 1, wherein the wireless communication link be downlink wireless communication link, The quality of the downlink wireless communication link is Signal to Interference plus Noise Ratio SINR and Reference Signal Received Power RSRP；
The antenna switching entry condition is that the SINR is less than SINR thresholding and/or the RSRP is less than RSRP thresholding.
7. the method according to claim 1, wherein described when the quality of the wireless communication link meets day When line switches entry condition, the first received signal quality and described second of the first antenna is measured in the first preset time Before second received signal quality of antenna；The method also includes: determine the present type of service of the terminal；According to described Present type of service determines the antenna switching entry condition.
8. the method according to claim 1, wherein first received signal quality is SINR and RSRP；Institute Stating the second received signal quality is SINR and RSRP.
9. the method according to claim 1, wherein described when second received signal quality is greater than described the When one received signal quality, by the first antenna and second antenna in turn to the base station in the second preset time Send signal, comprising:
When second received signal quality is greater than first received signal quality, and meets default switching condition, in institute It states in the second preset time and signal is sent to the base station in turn by the first antenna and second antenna.
10. the method according to claim 1, wherein described first sends signal quality and second transmission Signal quality is determined by spectrum efficiency and quality feedback information.
11. according to the method described in claim 10, it is characterized in that, the quality feedback information includes following any:
ACK, NACK, new data instruction.
12. a kind of terminal, which is characterized in that the terminal includes processor, memory, first antenna and the second antenna；
The processor is used to monitor the quality of the corresponding wireless communication link of the first antenna；
The processor is also used to when the quality of the wireless communication link meets antenna switching entry condition, default first Second received signal quality of the first received signal quality and second antenna of the measurement first antenna in time；
The processor is used for when second received signal quality is greater than first received signal quality, default second Signal is sent to base station in turn by the first antenna and second antenna in time；
The processor be also used to measure the first antenna in second preset time first send signal quality and The second of second antenna sends signal quality；
The processor is also used to when described second sends signal quality and be greater than the first transmission signal quality, using described Second antenna sends signal to the base station.
13. terminal according to claim 12, which is characterized in that the processor is also used to send signal when described first When quality is greater than or equal to the second transmission signal quality, by the first antenna and second antenna in turn to described Base station sends signal.
14. terminal according to claim 12, which is characterized in that the quality of the wireless communication link includes up-link wireless The quality of communication link and/or the quality of downlink wireless communication link.
15. terminal according to claim 12, which is characterized in that the wireless communication link is up-link wireless communication chain Road, the quality of the up-link wireless communication link are retransmission rate and/or spectrum efficiency.
16. terminal according to claim 15, which is characterized in that the quality of the up-link wireless communication link is to retransmit Rate, the antenna switching entry condition are that the retransmission rate is greater than retransmission rate thresholding；Or,
The quality of the up-link wireless communication link is spectrum efficiency, and the antenna switching entry condition is that the spectrum efficiency is big In spectrum efficiency thresholding.
17. terminal according to claim 12, which is characterized in that the wireless communication link is downlink wireless communication link Road, the quality of the downlink wireless communication link are Signal to Interference plus Noise Ratio SINR and Reference Signal Received Power RSRP；
The antenna switching entry condition is that the SINR is less than SINR thresholding and/or the RSRP is less than RSRP thresholding.
18. terminal according to claim 12, which is characterized in that described when the quality of the wireless communication link meets When antenna switches entry condition, the first received signal quality and described the of the first antenna is measured in the first preset time Before second received signal quality of two antennas；The processor is also used to determine the present type of service of the terminal；According to The present type of service determines the antenna switching entry condition.
19. terminal according to claim 12, which is characterized in that first received signal quality is SINR and RSRP； Second received signal quality is SINR and RSRP.
20. terminal according to claim 12, which is characterized in that the processor is also used to receive signal when described second Quality is greater than first received signal quality, and when meeting default switching condition, passes through institute in second preset time It states first antenna and second antenna and sends signal to the base station in turn.
21. terminal according to claim 12, which is characterized in that described first, which sends signal quality and described second, sends Signal quality is determined by spectrum efficiency and quality feedback information.
22. terminal according to claim 21, which is characterized in that the quality feedback information includes following any:
ACK, NACK, new data instruction.
23. a kind of antenna selection apparatus, which is characterized in that described device is set to terminal, the terminal include first antenna and Second antenna；Described device includes:
Monitoring unit, for monitoring the quality of the corresponding wireless communication link of the first antenna；
First measuring unit, it is pre- first for when the quality of the wireless communication link meets antenna switching entry condition If the second received signal quality of the first received signal quality and second antenna of the measurement first antenna in the time；
Transmission unit, for being preset second when second received signal quality is greater than first received signal quality Signal is sent to base station in turn by the first antenna and second antenna in time；
Second measuring unit, for measure the first antenna in second preset time first send signal quality and The second of second antenna sends signal quality；
The transmission unit is also used to use institute when described second sends signal quality and be greater than the first transmission signal quality It states the second antenna and sends signal to the base station.
24. a kind of chip system characterized by comprising
Processor, for executing instructions so that the terminal perform claim for being equipped with the chip system requires any one of 1-11 institute The method stated.
25. a kind of computer storage medium, which is characterized in that the computer storage medium includes computer instruction, when described When computer instruction is run at the terminal, so that the terminal perform claim requires the described in any item methods of 1-11.
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