CN102149223B - Method for improving terminal receiving sensitivity and terminal - Google Patents

Method for improving terminal receiving sensitivity and terminal Download PDF

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Publication number
CN102149223B
CN102149223B CN201110069279.5A CN201110069279A CN102149223B CN 102149223 B CN102149223 B CN 102149223B CN 201110069279 A CN201110069279 A CN 201110069279A CN 102149223 B CN102149223 B CN 102149223B
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module
frequency range
exponent number
filter
control module
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CN102149223A (en
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杜艳丽
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2011/083480 priority patent/WO2012126260A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3805—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving with built-in auxiliary receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

The invention provides a method for improving terminal receiving sensitivity. A terminal comprises a first module supporting a first mode and a second module supporting a second mode; moreover, a first frequency range in the first mode and a second frequency range in a second frequency range are frequency ranges which are mutually interfered; the method comprises the steps as follows: when the first module and the second module simultaneously work at the interfered frequency range of the two modes, and the two modes are respectively in an emitting state and a receiving state, a filter with adjustable orders in the first mode or the second module in the receiving state is set into a high-order state. The invention also provides a terminal. The technical scheme can be adopted to improve the receiving sensitivity of a TDF (transborder data flow) frequency range and a GSMDCS (global system for mobile communications-data communication system) frequency range in case that the receiving sensitivity of the TDF frequency range and the GSMDCS frequency range are largely influenced when a terminal GSM (global system for mobile communications) module works in a DCS frequency range (data communication system) and a TDF module works in an F frequency range.

Description

Improve method and the terminal of terminal receiving sensitivity
Technical field
The present invention relates to the communication technology, relate in particular to a kind of method and terminal that improves terminal receiving sensitivity.
Background technology
Along with the high speed development of mobile communication technology, TD SDMA (Time division synchronous CDMA, TD-SCDMA) technology reaches its maturity, and the high-speed data services such as its online, video telephone, mobile TV have attracted a lot of users.Meanwhile, global system for mobile communications (Global System for Mobile communication, GSM), due to the construction development through for many years, relies on its network comprehensively covering, and the advantages such as higher speech quality also have a large number of users.Therefore, people are also more and more stronger to the demand of GSM and TD-SCDMA double-mode and double-standby terminal.
For GSM/TD-SCDMA double-mode and double-standby terminal, single to seem each pattern frequency band from working band not overlapping, should not have interference, but the actual out-of-band radiation transmitting due to the non-linear and transmitter of receiver, when two kinds of patterns are worked simultaneously, certainly existing phase mutual interference.In general the impact that, band separation is more closely disturbed is just larger.As seen from Figure 1, TD-SCDMA(is called for short TD) F frequency range (1880MHz-1920MHz) is adjacent with DCS1800 downlink working frequency range (1805MHz-1880MHz), the centre frequency of 885 channels of DCS1800 band downlink and TD F-band 9404 channels only has the interval of 0.9MHz, therefore the interference between deducibility TD F-band and GSM DCS frequency range can be larger compared with other frequency range.
For the problem of disturbing mutually between dual-mode terminal, general measures is to adopt double antenna, and increases as much as possible the isolation of two antennas, or adds dielectric filter or Surface Acoustic Wave Filter at transmitting terminal.Due to the restriction of handset size, the isolation between antenna can not do finely, and meanwhile, adding filter can, to causing unnecessary decay with interior useful signal, affect the receiving sensitivity of terminal.
Summary of the invention
The invention provides a kind of method and terminal that improves terminal receiving sensitivity, to solve the not high problem of receiving sensitivity of terminal.
The invention provides a kind of method that improves terminal receiving sensitivity, above-mentioned terminal comprises supports the first module of first mode and the second module of second pattern of support, and the second frequency range interference band each other in the first frequency range in above-mentioned first mode and above-mentioned the second pattern, said method comprises:
When above-mentioned the first module and above-mentioned the second module are operated in the interference band of two patterns simultaneously, and during respectively in emission state and accepting state, in above-mentioned the first module in accepting state or above-mentioned the second module, the filter of adjustable exponent number is set to high-order state two patterns.
Preferably, said method can have following features:
Above-mentioned the first module and above-mentioned the second module are operated in the interference band of two patterns simultaneously, and two patterns during respectively in emission state and accepting state, in above-mentioned the first module in accepting state or above-mentioned the second module, the filter of adjustable exponent number is set to high-order state, comprising:
The first control module corresponding to above-mentioned the first module will comprise that the working frequency range of above-mentioned the first module and the information of operating state send to second control module corresponding with above-mentioned the second module;
As determined, above-mentioned the second module is operated in the second frequency range and in emission state to above-mentioned the second control module, the first module is operated in the first frequency range and in the time of accepting state, notifies the filter of adjustable exponent number in above-mentioned the first module of the first control module to be set to high-order state;
As determined, above-mentioned the second module is operated in the second frequency range to above-mentioned the second control module and in accepting state, above-mentioned the first module is operated in the first frequency range and in the time of emission state, in above-mentioned the second module, the filter of adjustable exponent number is set to high-order state.
Preferably, said method can have following features:
Above-mentioned first mode is global system for mobile communications (GSM) pattern, above-mentioned the first frequency range is Digital Cellular System (DCS) 1800 frequency ranges, above-mentioned the first module is gsm module, above-mentioned the first control module is GSM control module, and in above-mentioned the first module, the filter of adjustable exponent number comprises the low pass filter (LPF) of adjustable exponent number and/or the finite impulse response digital filter (FIR) of adjustable exponent number;
Above-mentioned the second pattern is TD SDMA access (TD) pattern, above-mentioned the second frequency range is F-band, above-mentioned the second module is TD module, above-mentioned the second control module is TD control module, and in above-mentioned the second module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the root-raised cosine digital filter (RRC) of adjustable exponent number.
Preferably, said method can have following features:
Above-mentioned first mode is TD pattern, and above-mentioned the first frequency range is F-band, and above-mentioned the first module is TD module, and above-mentioned the first control module is TD control module, and in above-mentioned the first module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the RRC of adjustable exponent number;
Above-mentioned the second pattern is GSM pattern, above-mentioned the second frequency range is DCS1800 frequency range, above-mentioned the second module is gsm module, and above-mentioned the second control module is GSM control module, and in above-mentioned the second module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the FIR of adjustable exponent number.
Preferably, said method can have following features:
In above-mentioned the first module, the filter of adjustable exponent number is arranged in the first frequency range receive path of above-mentioned the first module;
In above-mentioned the second module, the filter of adjustable exponent number is arranged in the second frequency range receive path of above-mentioned the second module.
The present invention also provides a kind of terminal, above-mentioned terminal comprises the first module and the first corresponding control module of supporting first mode, and the second module of second pattern of support and the second corresponding control module, and the second frequency range interference band each other in the first frequency range in above-mentioned first mode and above-mentioned the second pattern, wherein:
In the first frequency range receive path of above-mentioned the first module and the second frequency range receive path of above-mentioned the second module, include the filter of adjustable exponent number;
Above-mentioned the first control module and the second control module are for working frequency range and the state information of mutual the first module and the second module, judge that above-mentioned the first module and above-mentioned the second module are operated in the interference band of two patterns simultaneously, and two patterns are respectively in the time of emission state and accepting state, and in above-mentioned the first module in accepting state or above-mentioned the second module, the filter of adjustable exponent number is set to high-order state.
Preferably, above-mentioned terminal can have following features:
Above-mentioned the first control module is for comprising that the working frequency range of above-mentioned the first module and the information of operating state send to above-mentioned the second control module;
Above-mentioned the second control module, for as determined, above-mentioned the second module is operated in the second frequency range and in emission state, the first module is operated in the first frequency range and in the time of accepting state, notifies the filter of adjustable exponent number in above-mentioned the first module of above-mentioned the first control module to be set to high-order state; As determined, above-mentioned the second module is operated in the second frequency range and in accepting state, the first module is operated in the first frequency range and in the time of emission state, in above-mentioned the second module, the filter of adjustable exponent number is set to high-order state.
Preferably, above-mentioned terminal also can have following features:
Above-mentioned the second control module, also, in the time that definite above-mentioned the second module is operated in non-the second frequency range, notifies the filter of adjustable exponent number in above-mentioned the first module of above-mentioned the first control module to be set to low order state.
Preferably, above-mentioned terminal also can have following features:
Above-mentioned first mode is global system for mobile communications (GSM) pattern, above-mentioned the first frequency range is Digital Cellular System (DCS) 1800 frequency ranges, above-mentioned the first module is gsm module, above-mentioned the first control module is GSM control module, and in above-mentioned the first module, the filter of adjustable exponent number comprises the low pass filter (LPF) of adjustable exponent number and/or the finite impulse response digital filter (FIR) of adjustable exponent number;
Above-mentioned the second pattern is TD SDMA access (TD) pattern, above-mentioned the second frequency range is F-band, above-mentioned the second module is TD module, above-mentioned the second control module is TD control module, and in above-mentioned the second module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the root-raised cosine digital filter (RRC) of adjustable exponent number.
Preferably, above-mentioned terminal also can have following features:
Above-mentioned first mode is TD pattern, and above-mentioned the first frequency range is F-band, and above-mentioned the first module is TD module, and above-mentioned the first control module is TD control module, and in above-mentioned the first module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the RRC of adjustable exponent number;
Above-mentioned the second pattern is GSM pattern, above-mentioned the second frequency range is DCS1800 frequency range, above-mentioned the second module is gsm module, and above-mentioned the second control module is GSM control module, and in above-mentioned the second module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the FIR of adjustable exponent number.
Adopt technical scheme of the present invention, can be operated in DCS frequency range at terminal gsm module, when TD module is operated in F-band simultaneously, GAM DCS frequency range and TD F-band receiving sensitivity are subject in the situation of considerable influence, improve the receiving sensitivity of TD F-band and GSM DCS frequency range.
Brief description of the drawings
Fig. 1 is the frequency band distribution figure of existing GSM DCS frequency range and TD-SCDMA F-band;
Fig. 2 is the structural representation of GSM receive path embodiment of the present invention;
Fig. 3 is the structural representation of TD-SCDMA receive path embodiment of the present invention;
Fig. 4 is the information interaction schematic diagram that the present invention arranges the filter embodiment of adjustable exponent number in gsm module and TD module;
Fig. 5 is the flow chart that the present invention improves terminal receiving sensitivity embodiment of the method;
Fig. 6 is the structural representation of terminal embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme is described in further detail:
The invention provides a kind of method that improves terminal receiving sensitivity, above-mentioned terminal comprises supports the first module of first mode and the second module of second pattern of support, and the second frequency range interference band each other in the first frequency range in above-mentioned first mode and above-mentioned the second pattern, said method comprises:
When above-mentioned the first module and above-mentioned the second module are operated in the interference band of two patterns simultaneously, and during respectively in emission state and accepting state, in above-mentioned the first module in accepting state or above-mentioned the second module, the filter of adjustable exponent number is set to high-order state two patterns.
Particularly, said method can adopt following scheme to realize:
The first control module corresponding to above-mentioned the first module will comprise that the working frequency range of above-mentioned the first module and the information of operating state send to second control module corresponding with above-mentioned the second module;
As determined, above-mentioned the second module is operated in the second frequency range and in emission state to above-mentioned the second control module, the first module is operated in the first frequency range and in the time of accepting state, notifies the filter of adjustable exponent number in above-mentioned the first module of the first control module to be set to high-order state;
As determined, above-mentioned the second module is operated in the second frequency range to above-mentioned the second control module and in accepting state, above-mentioned the first module is operated in the first frequency range and in the time of emission state, in above-mentioned the second module, the filter of adjustable exponent number is set to high-order state;
As determined, above-mentioned the second module is operated in non-the second frequency range to above-mentioned the second control module, notifies the filter of adjustable exponent number in first control module the first module to be set to low order state.
Wherein, above-mentioned first mode is global system for mobile communications (GSM) pattern, above-mentioned the first frequency range is Digital Cellular System (DCS) 1800 frequency ranges, above-mentioned the first module is gsm module, above-mentioned the first control module is GSM control module, and in above-mentioned the first module, the filter of adjustable exponent number comprises the low pass filter (LPF) of adjustable exponent number and/or the finite impulse response digital filter (FIR) of adjustable exponent number; Above-mentioned the second pattern is TD SDMA access (TD) pattern, above-mentioned the second frequency range is F-band, above-mentioned the second module is TD module, above-mentioned the second control module is TD control module, and in above-mentioned the second module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the root-raised cosine digital filter (RRC) of adjustable exponent number.
Similarly, above-mentioned first mode is TD pattern, and above-mentioned the first frequency range is F-band, and above-mentioned the first module is TD module, above-mentioned the first control module is TD control module, and in above-mentioned the first module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the RRC of adjustable exponent number; Above-mentioned the second pattern is GSM pattern, above-mentioned the second frequency range is DCS1800 frequency range, above-mentioned the second module is gsm module, and above-mentioned the second control module is GSM control module, and in above-mentioned the second module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the FIR of adjustable exponent number.
Preferably, in above-mentioned the first module, the filter of adjustable exponent number is arranged in the first frequency range receive path of above-mentioned the first module; In above-mentioned the second module, the filter of adjustable exponent number is arranged in the second frequency range receive path of above-mentioned the second module.
Adopt technical scheme of the present invention, can be operated in DCS frequency range at terminal gsm module, when TD module is operated in F-band simultaneously, GAM DCS frequency range and TD F-band receiving sensitivity are subject in the situation of considerable influence, improve the receiving sensitivity of TD-SCDMA F-band and GSM DCS frequency range.
As shown in Figure 2, it is the structural representation of GSM receive path embodiment of the present invention, wherein, low noise amplifier, frequency mixer, low pass filter (LPF), analog gain amplifier (VGA), AD converter (ADC), finite impulse response digital filter (Finite Impulse Response, FIR) and digital variable gain amplifier (VGA) complete the receiving function of GSM 900 frequency ranges; Low noise amplifier, frequency mixer, tunable low pass filter (LPF_A), simulation VGA, ADC, adjustable FIR(FIR_A) and digital VGA complete the receiving function of GSM DCS frequency range.
Wherein, GSM receive path in this embodiment and the distinctive points of existing GSM receive path be, the present invention has adopted LPF_A and FIR_A.
As shown in Figure 3, it is the structural representation of TD-SCDMA receive path embodiment of the present invention, wherein, low noise amplifier, frequency mixer, low pass filter LPF, simulation VGA, ADC, root-raised cosine digital filter (RRC) filter and digital VGA complete TD A frequency range receiving function; Low noise amplifier, frequency mixer, simulation low-pass filter (LPF_A), simulation VGA, ADC, adjustable RRC(RRC_A) and digital VGA complete F-band receiving function.
Wherein, GSM receive path in this embodiment and the distinctive points of existing GSM receive path be, the present invention has adopted LPF_A and RRC_A.
Preferably, in the time that TD is operated in A frequency range (2010MHz-2025MHz), the exponent number of filter LPF_A in GSM receive path can be arranged on low step mode, thereby can avoid receiving signal logical unnecessary decay of inband signaling after multi-stage filter; When TD is operated in F-band emission state, when GSM is operated in DCS accepting state simultaneously, the LPF_A in this GSM receive path is arranged on higher order mode, to strengthen the decay of off-channel signal, improve the signal to noise ratio (snr) of AD converter input signal, thereby improve receiving sensitivity.
Preferably, in the time that TD is operated in A frequency range, the exponent number of the FIR_A digital filter in GSM receive path is arranged on low step mode, to reduce amount of calculation and the processing time of DSP; When TD is operated in F-band emission state, when GSM is operated in DCS accepting state simultaneously, the FIR_A in this GSM receive path is arranged on higher order mode, to strengthen revealing into the decay of the off-channel signal of ADC, improves receiving sensitivity.
Preferably, in the time that GSM is operated in GSM900 frequency range, the exponent number of the filter LPF_A in TD receive path is arranged on low step mode, avoids receiving signal logical unnecessary decay of inband signaling after multi-stage filter; When TD is operated in F-band accepting state, when GSM is operated in DCS emission state simultaneously, the LPF_A in this TD receive path is arranged on higher order mode, to strengthen the decay of off-channel signal, improves the SNR of AD converter input signal, thereby improves receiving sensitivity.
Preferably, in the time that GSM is operated in GSM900 frequency range, the exponent number of the FIR_A digital filter in TD receive path is arranged on low step mode, to reduce amount of calculation and the processing time of DSP; When TD is operated in F-band accepting state, when GSM is operated in DCS emission state simultaneously, the FIR_A in this TD receive path is arranged on higher order mode, to strengthen revealing into the decay of the off-channel signal of ADC, improves receiving sensitivity.
As shown in Figure 4, it is the information interaction schematic diagram that the present invention arranges the filter embodiment of adjustable exponent number in gsm module and TD module, GSM control module reports working frequency range and the operating state of GSM module to TD-SCDMA control module in this embodiment, working frequency range and the operating state of TD control module detects the working frequency range of the gsm module of reception and operating state TD module with it contrast, when gsm module is operated in DCS1800, and in accepting state, TD module is operated in F-band, and in the time of emission state, TD control module sends the order that filter is set to GSM control module, said process completes in digital baseband (DBB) inside, GSM control module arranges the exponent number of the tunable filter in gsm module according to mentioned order, when gsm module is operated in DCS1800, and in emission state, TD module is operated in F-band, and in the time of accepting state, TD control module arranges the exponent number of tunable filter in TD module, particularly, the GSM control module in DBB and TD control module arrange the exponent number of the filter of gsm module and TD inside modules by Serial Peripheral Interface (SPI) interface.
It should be noted that, the GSM receive path in Fig. 2 is arranged in the gsm module of Fig. 4, and the TD receive path in Fig. 3 is arranged in the TD module of Fig. 4.
As shown in Figure 5, be the flow chart that the present invention improves terminal receiving sensitivity embodiment of the method, the method comprises:
Step 501, GSM module are in the time of work, and working frequency range current GSM module, working channel and operating state are reported TD module by GSM control module;
When the work of step 502, TD module, TD control module detects working frequency range, working channel and the operating state of the gsm module reporting constantly, and current to itself and TD module working frequency range, working channel and operating state are contrasted;
Step 503, when TD module is operated in F-band, operating state is emission state, gsm module is operated in DCS frequency range, and in the time of accepting state, sends configuration information to GSM control module;
Step 504, GSM control module are received after configuration information, and the exponent number of the tunable low pass filter LPF_A in gsm module is set, and the exponent number of tunable digital filter FIR_A;
Now, tunable low pass filter LPF_A and digital filter FIR_A are all operated in high-order state, and the inhibition of band stray signal is strengthened, and the signal to noise ratio of ADC input gets a promotion, and the sensitivity of final receiving terminal improves;
Step 505, when TD module is operated in F-band, operating state is accepting state, gsm module is operated in DCS frequency range, and in the time of emission state, TD control module arranges adjustable analog filter LPF_A in TD module and the exponent number of tunable digital filter FIR_A.
Now, LPF_A and FIR_A are all operated in high-order state, and the inhibition of band stray signal is strengthened, and the signal to noise ratio of ADC input gets a promotion, and the sensitivity of final receiving terminal improves.
In addition, above-mentioned steps 503 and step 505 are the step of carrying out side by side, between step 503 and step 505, do not have successively sequential relationship.
As shown in Figure 6, it is the structural representation of terminal embodiment of the present invention, above-mentioned terminal comprises the first module 61 and the first corresponding control module 62 of supporting first mode, and the second module 63 and the second corresponding control module 64 of second pattern of support, and the second frequency range interference band each other in the first frequency range in above-mentioned first mode and above-mentioned the second pattern, includes the filter of adjustable exponent number in the first frequency range receive path of above-mentioned the first module and the second frequency range receive path of above-mentioned the second module; Above-mentioned the first control module and the second control module are for working frequency range and the state information of mutual the first module and the second module, judge that above-mentioned the first module and above-mentioned the second module are operated in the interference band of two patterns simultaneously, and two patterns are respectively in the time of emission state and accepting state, and in above-mentioned the first module in accepting state or above-mentioned the second module, the filter of adjustable exponent number is set to high-order state.
Wherein, above-mentioned the first control module is for comprising that the working frequency range of above-mentioned the first module and the information of operating state send to above-mentioned the second control module; Above-mentioned the second control module is for as determined, above-mentioned the second module is operated in the second frequency range and in emission state, the first module is operated in the first frequency range and in the time of accepting state, notifies the filter of adjustable exponent number in above-mentioned the first module of above-mentioned the first control module to be set to high-order state; As determined, above-mentioned the second module is operated in the second frequency range and in accepting state, the first module is operated in the first frequency range and in the time of emission state, in above-mentioned the second module, the filter of adjustable exponent number is set to high-order state.
In addition, above-mentioned the second control module also, in the time that definite above-mentioned the second module is operated in non-the second frequency range, notifies the filter of adjustable exponent number in above-mentioned the first module of above-mentioned the first control module to be set to low order state.
Wherein, above-mentioned first mode is global system for mobile communications (GSM) pattern, above-mentioned the first frequency range is Digital Cellular System (DCS) 1800 frequency ranges, above-mentioned the first module is gsm module, above-mentioned the first control module is GSM control module, and in above-mentioned the first module, the filter of adjustable exponent number comprises the low pass filter (LPF) of adjustable exponent number and/or the finite impulse response digital filter (FIR) of adjustable exponent number; Above-mentioned the second pattern is TD SDMA access (TD) pattern, above-mentioned the second frequency range is F-band, above-mentioned the second module is TD module, above-mentioned the second control module is TD control module, and in above-mentioned the second module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the root-raised cosine digital filter (RRC) of adjustable exponent number; Or, above-mentioned first mode is TD pattern, and above-mentioned the first frequency range is F-band, and above-mentioned the first module is TD module, above-mentioned the first control module is TD control module, and in above-mentioned the first module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the RRC of adjustable exponent number; Above-mentioned the second pattern is GSM pattern, above-mentioned the second frequency range is DCS1800 frequency range, above-mentioned the second module is gsm module, and above-mentioned the second control module is GSM control module, and in above-mentioned the second module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the FIR of adjustable exponent number.
Said GSM control module and TD control module are arranged in DBB.
Above-mentioned terminal can improve the sensitivity of reception, and concrete methods of realizing is identical with the embodiment of the method that improves terminal sensitivity, repeats no more herein.
One of ordinary skill in the art will appreciate that all or part of step in said method can carry out instruction related hardware by program and complete, said procedure can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, the each module/unit in above-described embodiment can adopt the form of hardware to realize, and also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, only with reference to preferred embodiment, the present invention is had been described in detail.Those of ordinary skill in the art should be appreciated that and can modify or be equal to replacement technical scheme of the present invention, and do not depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of claim scope of the present invention.

Claims (9)

1. one kind is improved the method for terminal receiving sensitivity, described terminal comprises supports the first module of first mode and the second module of second pattern of support, and the second frequency range interference band each other in the first frequency range in described first mode and described the second pattern, described method comprises:
When described the first module and described the second module are operated in the interference band of two patterns simultaneously, and during respectively in emission state and accepting state, in described the first module in accepting state or described the second module, the filter of adjustable exponent number is set to high-order state two patterns;
In described the first module, the filter of adjustable exponent number is arranged in the first frequency range receive path of described the first module;
In described the second module, the filter of adjustable exponent number is arranged in the second frequency range receive path of described the second module.
2. method according to claim 1, is characterized in that:
Described the first module and described the second module are operated in the interference band of two patterns simultaneously, and two patterns during respectively in emission state and accepting state, in described the first module in accepting state or described the second module, the filter of adjustable exponent number is set to high-order state, comprising:
The first control module corresponding to described the first module will comprise that the working frequency range of described the first module and the information of operating state send to second control module corresponding with described the second module;
Described the second control module is operated in the second frequency range and in emission state as the second module as described in determining, the first module is operated in the first frequency range and in the time of accepting state, notifies the filter of adjustable exponent number in described the first module of the first control module to be set to high-order state;
Described the second control module is operated in the second frequency range and in accepting state, described the first module is operated in the first frequency range and in the time of emission state, in described the second module, the filter of adjustable exponent number is set to high-order state as the second module as described in determining.
3. method according to claim 2, is characterized in that:
Described first mode is global system for mobile communications (GSM) pattern, described the first frequency range is Digital Cellular System (DCS) 1800 frequency ranges, described the first module is gsm module, described the first control module is GSM control module, and in described the first module, the filter of adjustable exponent number comprises the low pass filter (LPF) of adjustable exponent number and/or the finite impulse response digital filter (FIR) of adjustable exponent number;
Described the second pattern is TD SDMA access (TD) pattern, described the second frequency range is F-band, described the second module is TD module, described the second control module is TD control module, and in described the second module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the root-raised cosine digital filter (RRC) of adjustable exponent number.
4. method according to claim 2, is characterized in that:
Described first mode is TD pattern, and described the first frequency range is F-band, and described the first module is TD module, and described the first control module is TD control module, and in described the first module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the RRC of adjustable exponent number;
Described the second pattern is GSM pattern, described the second frequency range is DCS1800 frequency range, described the second module is gsm module, and described the second control module is GSM control module, and in described the second module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the FIR of adjustable exponent number.
5. a terminal, described terminal comprises the first module and the first corresponding control module of supporting first mode, and the second module of second pattern of support and the second corresponding control module, and the second frequency range interference band each other in the first frequency range in described first mode and described the second pattern, is characterized in that:
In the first frequency range receive path of described the first module and the second frequency range receive path of described the second module, include the filter of adjustable exponent number;
Described the first control module and the second control module are for working frequency range and the state information of mutual the first module and the second module, judge that described the first module and described the second module are operated in the interference band of two patterns simultaneously, and two patterns are respectively in the time of emission state and accepting state, and in described the first module in accepting state or described the second module, the filter of adjustable exponent number is set to high-order state;
In described the first module, the filter of adjustable exponent number is arranged in the first frequency range receive path of described the first module;
In described the second module, the filter of adjustable exponent number is arranged in the second frequency range receive path of described the second module.
6. terminal according to claim 5, is characterized in that:
Described the first control module is for comprising that the working frequency range of described the first module and the information of operating state send to described the second control module;
Described the second control module, for being operated in the second frequency range and in emission state as the second module as described in determining, the first module is operated in the first frequency range and in the time of accepting state, notifies the filter of adjustable exponent number in described the first module of described the first control module to be set to high-order state; As the second module as described in determining is operated in the second frequency range and in accepting state, the first module is operated in the first frequency range and in the time of emission state, in described the second module, the filter of adjustable exponent number is set to high-order state.
7. according to the terminal described in claim 5 or 6, it is characterized in that:
Described the second control module, also, in the time that definite described the second module is operated in non-the second frequency range, notifies the filter of adjustable exponent number in described the first module of described the first control module to be set to low order state.
8. terminal according to claim 7, is characterized in that:
Described first mode is global system for mobile communications (GSM) pattern, described the first frequency range is Digital Cellular System (DCS) 1800 frequency ranges, described the first module is gsm module, described the first control module is GSM control module, and in described the first module, the filter of adjustable exponent number comprises the low pass filter (LPF) of adjustable exponent number and/or the finite impulse response digital filter (FIR) of adjustable exponent number;
Described the second pattern is TD SDMA access (TD) pattern, described the second frequency range is F-band, described the second module is TD module, described the second control module is TD control module, and in described the second module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the root-raised cosine digital filter (RRC) of adjustable exponent number.
9. terminal according to claim 7, is characterized in that:
Described first mode is TD pattern, and described the first frequency range is F-band, and described the first module is TD module, and described the first control module is TD control module, and in described the first module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the RRC of adjustable exponent number;
Described the second pattern is GSM pattern, described the second frequency range is DCS1800 frequency range, described the second module is gsm module, and described the second control module is GSM control module, and in described the second module, the filter of adjustable exponent number comprises the LPF of adjustable exponent number and/or the FIR of adjustable exponent number.
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CN105430756B (en) * 2014-09-11 2019-01-08 中国移动通信集团公司 A kind of method and access point adjusting receiving sensitivity
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