Summary of the invention
The invention provides the multicarrier sending and receiving method of a kind of terminal, terminal, with technical problems such as the free space at least solving in correlation technique the multiband demand and terminal antenna that cannot meet terminal require simultaneously.
According to one embodiment of present invention, provide a kind of terminal, comprising: multiband antenna, be provided with multiple antenna structure, for sending or receive carrier wave corresponding with described antenna structure in multicarrier by described antenna structure, wherein, the frequency range that different described antenna structures is corresponding different; Baseband chip, for exporting baseband signal, and the antenna structure corresponding with the frequency range of described each carrier wave according to the frequency range configuration of carrier wave each in described multicarrier; Radio-frequency module, for by described modulates baseband signals to described multicarrier, and described multicarrier is sent to described multiband antenna, or, the carrier wave that described multiband antenna receives is sent to described baseband chip.
Preferably, above-mentioned terminal also comprises: tuner module, is arranged between described radio-frequency module and described multiband antenna, for carrying out frequency tuning to described multicarrier.
Preferably, described tuner module is one.
Preferably, above-mentioned terminal also comprises: duplexer, is provided with multiple port, and each described port only allows the carrier wave corresponding with described port input; Described duplexer one end is connected with described radio-frequency module, and the other end is connected with described tuner module.
Preferably, described multiband antenna is one.
Preferably, described antenna structure comprises: multiple distributing point and/or short dot, the matching network circuit corresponding with carrier wave and radiant body cabling.
According to another embodiment of the invention, provide a kind of multi-carrier transmission method of terminal, comprising: the frequency range obtaining each carrier wave in terminal multicarrier to be sent; For each carrier wave, from multiple antenna structure, select the antenna structure corresponding with described frequency range, wherein, described multiple antenna structure is arranged in the multiband antenna of described terminal; The described antenna structure selected sends the carrier wave with described antenna structure corresponding frequency band.
Preferably, before the described antenna structure selected sends the carrier wave with described antenna structure corresponding frequency band, also comprise: the tuning process each carrier wave in described multicarrier being carried out to transmission frequency.
According to still a further embodiment, provide a kind of multicarrier receiving method of terminal, comprising: receive the multicarrier from network side; For each carrier wave in described multicarrier, select the antenna structure corresponding with the frequency range of described each carrier wave to be processed by the baseband chip in described each carrier wave transmitting terminal, wherein, described antenna structure is arranged in the multiband antenna of described terminal.
Preferably, before the baseband chip in described each carrier wave transmitting terminal is processed, also comprise: the tuning process each carrier wave in described multicarrier being carried out to receive frequency.
Pass through the present invention, utilize antenna structure realization corresponding with frequency range in multiband antenna to the transmission of multicarrier or reception, the technical problems such as the free space solving in correlation technique the multiband demand and terminal antenna that simultaneously cannot meet terminal requires, thus while realizing terminal multiband demand, also the free space of antenna has been taken into account, further, owing to eliminating multiplexer, the path loss of wireless link is decreased.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Fig. 1 a is the structured flowchart of the terminal according to the embodiment of the present invention.As shown in Figure 1a, this terminal comprises:
Multiband antenna 10, is provided with multiple antenna structure, for sending or receive carrier wave corresponding with above-mentioned antenna structure in multicarrier by above-mentioned antenna structure, wherein, and the frequency range that different above-mentioned antenna structures is corresponding different;
Baseband chip 20, for exporting baseband signal, and the antenna structure corresponding with the frequency range of above-mentioned each carrier wave according to the frequency range configuration of carrier wave each in above-mentioned multicarrier;
Radio-frequency module 30, for by above-mentioned modulates baseband signals to above-mentioned multicarrier, and above-mentioned multicarrier is sent to above-mentioned multiband antenna, or, the carrier wave that above-mentioned multiband antenna receives is sent to above-mentioned baseband chip.
Adopt the terminal comprising above-mentioned modules, owing to utilizing antenna structure realization corresponding with frequency range in multiband antenna to the transmission of multicarrier or reception, therefore, the technical problems such as the free space that can solve the multiband demand and terminal antenna that simultaneously cannot meet terminal requires, thus while realizing terminal multiband demand, also taken into account the free space of antenna, and, owing to eliminating multiplexer, decrease the path loss of wireless link.
In a preferred implementation process, as shown in Figure 4, radio-frequency module can comprise following hardware processing module, but is not limited thereto:
Radio frequency chip module, for passing through multiple component carrier to Base Transmitter, and receives wireless signal from base station; Namely mainly completing the modulation to launching digital baseband signal, making it meet and launching required radio-frequency (RF) index so that at space propagation; Demodulation is carried out to the radiofrequency signal of space-reception simultaneously, make it to be transformed into digital baseband signal by baseband chip module to complete associated data operation.
Radio frequency front-end devices, mainly comprises filter, power amplifier and duplexer etc., completes the amplification transmitted, filtering, and gone out by antenna transmission after duplexer; The filtering of the signal that complete twin aerial receives, then enters radio frequency chip module and carries out demodulation.
In a preferred embodiment of the present embodiment, as shown in Figure 1 b, terminal can also comprise: tuner module 40 (being also called antenna tuning module), is arranged between radio-frequency module 30 and above-mentioned multiband antenna 10, for carrying out frequency tuning to above-mentioned multicarrier.
In a preferred embodiment, the quantity of tuner module 40 is one, effectively can ensure the free space of terminal antenna like this.
In order to realize the support of multiband, in the present embodiment, as shown in Figure 1 b, terminal also comprises: duplexer 50, is provided with multiple port, and each above-mentioned port only allows the carrier wave corresponding with above-mentioned port input; Above-mentioned duplexer 50 one end is connected with above-mentioned radio-frequency module, and the other end is connected with above-mentioned tuner module.
For ensureing the free space of terminal inner further, above-mentioned multiband antenna 10 quantity also can be set to one.
In a preferred embodiment of the present embodiment, above-mentioned antenna structure can include but not limited to: multiple distributing point and/or short dot, the matching network circuit corresponding with carrier wave and radiant body cabling.
The embodiment of the present invention also provides a kind of multi-carrier transmission method of terminal, and as shown in Figure 2, the method comprises:
Step S202, obtains the frequency range of each carrier wave in terminal multicarrier to be sent;
Step S204, for each carrier wave, from multiple antenna structure, select the antenna structure corresponding with above-mentioned frequency range, wherein, above-mentioned multiple antenna structure is arranged in the multiband antenna of above-mentioned terminal;
Step S206, the above-mentioned antenna structure selected sends the carrier wave with above-mentioned antenna structure corresponding frequency band.
Before the above-mentioned antenna structure selected sends the carrier wave with above-mentioned antenna structure corresponding frequency band, the tuning process of occurrence frequency can also be carried out to each carrier wave in above-mentioned multicarrier.
The embodiment of the present invention also provides a kind of multicarrier receiving method of terminal, and as shown in Figure 3, the method comprises:
Step S302, receives the multicarrier from network side;
Step S304, for each carrier wave in above-mentioned multicarrier, select the antenna structure corresponding with the frequency range of above-mentioned each carrier wave to be processed by the baseband chip in above-mentioned each carrier wave transmitting terminal, wherein, above-mentioned antenna structure is arranged in the multiband antenna of above-mentioned terminal.
In a preferred embodiment, before being processed by the baseband chip in above-mentioned each carrier wave transmitting terminal, the tuning process each carrier wave in above-mentioned multicarrier being carried out to receive frequency is also needed.
In order to understand above-described embodiment better, describe in detail below in conjunction with preferred embodiment.
The embodiment of the present invention proposes a kind of terminal and the implementation method of supporting carrier aggregation, can reduce the path loss of wireless link, and the interference that may cause during by optimizing antenna performance and reducing carrier aggregation, thus improves the quality of communication system.
The design philosophy of following examples is, utilizes the design of tunable multiband antenna, by realizing the function of Diplexer in multiband antenna, reduces the path loss of wireless link, thus reduces power consumption of terminal; Adjust one or more antenna parameter to optimize antenna performance by antenna tuning module, thus reduce the interference of carrier aggregation.
The present embodiment also provides a kind of terminal, as shown in Figure 4, comprising: baseband chip 10, power management chip 60, radio frequency chip module 300, radio frequency front-end devices 302, duplexer 50, antenna tuning module 40 and multiband antenna 10 etc.
Wherein, baseband chip 10 is used for synthesizing the baseband signal being about to launch, or decodes to the baseband signal received from radio-frequency module 30; Meanwhile, be also responsible for carrying out control and management to whole terminal, comprise timing controlled, digital system controls, the management of man-machine interface and control and radio-frequency devices control etc.
Power management chip 60 is for being baseband chip, radio frequency chip, radio frequency front-end devices, and duplexer and antenna tuning module etc. provide power supply.
Radio frequency chip module 300, for passing through multiple component carrier to Base Transmitter, and receives wireless signal from base station; Namely mainly completing the modulation to launching digital baseband signal, making it meet and launching required radio-frequency (RF) index so that at space propagation; Demodulation is carried out to the radiofrequency signal of space-reception simultaneously, make it to be transformed into digital baseband signal by baseband chip module to complete associated data operation.
Radio frequency front-end devices 302, mainly comprises filter, power amplifier and duplexer etc., completes the amplification transmitted, filtering, and gone out by antenna transmission after duplexer; The filtering of the signal that complete twin aerial receives, then enters radio frequency chip module and carries out demodulation.
Duplexer 50 and antenna tuning module 40 (i.e. antenna adjustments system), in order to regulate for transmission line structure, matching network, antenna resonating element, antenna ground and antenna feed, namely according to the corresponding match circuit of the Frequency Band Selection of carrier aggregation, distributing point and short dot etc., that is be each frequency range corresponding antenna structure separately that have selected carrier aggregation.
Herein, antenna tuning module 40 has multiple input and multiple output.Illustrate for transmitting chain below.In transmitting chain, the multicarrier of multiple inputs difference respective antenna switches of antenna tuning module exports, multiple distributing point of the corresponding multiband antenna of multiple outputs difference of antenna tuning module and short dot.When needing to carry out multiple carrier aggregation (such as three carrier aggregation of carrier wave 2, carrier wave 5 and carrier wave L), after each carrier transmission signal exports antenna tuning module to from duplexer, baseband chip control antenna tuner module, according to the frequency of each carrier signal of required transmitting, selects the match circuit of applicable carrier wave 2, carrier wave 5 and carrier wave L, distributing point and short dot etc.; Then each carrier transmission signal delivers to antenna via respective feed points, is radiated to free space, carries out radio communication with base station system.For Received signal strength, vice versa.
Multiband antenna 10, except comprising the radiant body cabling that designs according to actual needs, also comprises multiple antenna feed point, multiple short dot and corresponding matching network etc. separately.When selecting at least one guiding path of conducting in the tuning path from multiple distributing point and feed composition, resonance frequency changes, and therefore the working band of antenna changes.Except the basic size of antenna, in Antenna Design, each distributing point to other distributing point in radiant body and may the distance of short dot, and belongs to the value of the reactance circuit matching network between distributing point and switch, and ground plane is all variable apart from the distance of radiant body.By using multiband antenna, the function class of this antenna being similar to and containing the antenna supporting different frequency bands.
Based on said structure feature, a workflow of terminal is as follows:
On transmitting chain, the modulates baseband signals that baseband chip exports by radio frequency chip module is on high-frequency carrier signal, and the radiofrequency signal exporting smaller power carries out filtering and amplification to radio frequency front-end devices, then arrives duplexer; Through duplexer, under the control of baseband chip, each carrier signal is respectively through carrier wave 1, carrier wave 2 ... carrier wave L port exports antenna tuning module to; Now baseband chip according to needed for the corresponding match circuit of FREQUENCY CONTROL antenna tuning model choice, distributing point and the short dot etc. that transmit; Then transmit and deliver to antenna via distributing point, be radiated to free space, carry out radio communication with base station system.
On receiver, the downstream signal that the antenna for base station received is launched by antenna, delivers to antenna tuning module, the information of each frequency range that now baseband chip synchronization gain receives; Baseband chip is according to the frequency of each frequency range received, control antenna tuner module selects corresponding match circuit, distributing point and short dot etc., each frequency band signals enters duplexer through tuning path suitable separately afterwards, and then deliver to duplexer, rf chip receiving terminal is arrived by receiver, carry out down-conversion in radio frequency chip inside, demodulation becomes baseband signal, and is sent to baseband chip and carries out information processing.
It should be noted that, antenna, under different job requirements, can select a short dot to be connected to ground by tuning block, also can select directly to be connected with ground, also can at two and all choice for use between above short dot and ground.That is, according to the varying environment of Antenna Operation, the antenna access distributing point of correct position and the short dot of correct position and quantity is determined,
Compared with correlation technique, still only need an antenna here, and do not need to use multiplexer.Supporting all frequency ranges by comprising the multiband antenna of many distributing points and many short dots, antenna tuning module and switching over, while eliminating multiplexer, also can not increase the volume of antenna.At aspect of performance, in the scheme of existing use all channel antenna, when needing the carrier aggregation supporting multiple frequency range, a such as intermediate frequency, a low frequency, the Out-of-band rejection that wide frequency antenna exists when low frequencies is bad, and when harmonic wave just falls in midband, antenna just cannot provide good degree of suppression.But, when using multiband antenna to go to support this two frequency ranges, intermediate-frequency section can improve separately the efficiency in midband and the degree of suppression outside band, low frequency part also can improve efficiency in low-frequency band and Out-of-band rejection degree simultaneously, the lifting meaning antenna performance is improved with internal efficiency, Out-of-band rejection degree improves the reduction then meaned other band interference, thus reduces the interference of carrier aggregation, optimizes the performance of terminal during carrier aggregation.
Fig. 5 is the workflow diagram of illustrated steps according to an embodiment of the invention, and as shown in Figure 5, embodiment is: when terminal works is in carrier aggregation mode, and first baseband chip is determined to use which frequency range to carry out carrier aggregation; Then according to each frequency range of carrier aggregation, configure duplexer, antenna tuning module and select corresponding match circuit, distributing point and short dot etc., namely selecting the corresponding antenna structure of each frequency range; After above-mentioned configuration and selection complete, namely complete and carry out tuning to the corresponding antenna structure of each frequency range, make corresponding antenna structure be operated on desired working frequency range; Then, the antenna structure using each frequency range tuned carries out sending/receiving signal.
In sum, the embodiment of the present invention achieves following beneficial effect:
First, owing to using multiband antenna, thus the Diplexer on radio frequency link can be saved, obviously can reduce the path loss of wireless link like this, improve the radio-frequency performance of terminal; Secondly, utilize and frequency tuning is carried out to multiband antenna, optimize antenna performance, thus interference when reducing multi-carrier polymerizing, and then improve the quality of communication system
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.