CN103634896A - Data processing method and apparatus for multi-mode terminal - Google Patents
Data processing method and apparatus for multi-mode terminal Download PDFInfo
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Abstract
The invention discloses a data processing method and apparatus for a multi-mode terminal, the method comprising adjusting an MRTR value of the multi-mode terminal to the time consistent with a network side frame boundary under a current network type; registering events in need of response by uplink data to be transmitted and/or received downlink data into event information; and processing the uplink data and/or and the downlink data based on the MRTR value and the events in the event information. According to the invention, since the MRTR value of the multi-mode terminal is adjusted to the time consistent with the network side frame boundary under the current network type, the events in need of response by the data to be processed are registered in the event information and the above data are processed based on the MRTR value and the events in the event information which can be used universally by a variety of network types the multi-mode terminal supports, adjustment of the MRTR value of the terminal is achieved in a easy way during switching among multiple network types the multi-mode terminal supports and the software maintenance is easier.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of data processing method and device of multimode terminal.
Background technology
In mobile communication system, TD SDMA access (Time Division-Synchronous Code Division Multiple Access, referred to as TD-SCDMA)/Wideband Code Division Multiple Access (WCDMA) access (Wideband Code Division Multiple Access, referred to as WCDMA)/Long Term Evolution (Long-Term Evolution, referred to as LTE) system requirements subscriber equipment (User Equipment, referred to as UE) end time reference can with System Frame Number (the System Frame Number of persistent district, referred to as SFN) keep synchronous, under connection status with Connection Frame Number (Connect Frame Number, referred to as CFN) keep synchronous.And time processing unit (Time Process Unit, referred to as TPU) when starting, mobile wireless time reference (Mobile Radio Timing Reference, referred to as MRTR) counting is generally nonsynchronous with persistent district, this just requires TPU can provide with SFN, CFN to keep the interface of synchronizeing.So need TPU that an interface is provided, can adjust the MRTR counting of TPU, it is alignd with SFN or the CFN of system.
After the SFN or preliminary synchronous the going up of CFN of UE and TD-SCDMA/WCDMA/LTE network side, owing to there is minute differences in the crystalline substance shake of UE and base station, cause each chip actual step size to have minute differences, after being accumulated to some, just produce deviation between the two, caused UE and network side frame boundaries misalignment.At this moment need the UE side time to finely tune, UE and network side frame boundaries are consistent.Therefore, TPU need to provide such fine adjustment function, and UE side is consistent by fine setting and network side frame boundaries.
At TD-SCDMA/WCDMA/LTE system run duration, some module needs (as CSR) to know full frame or field moment point, at these special occasion points, carries out corresponding operation.The all modules that need to know full frame or field moment point, all need to tell in advance TPU module designer, and TPU module designer can, when full frame or the arrival of field moment point, send the message of full frames or the arrival of field moment point to these modules.TD-SCDMA/WCDMA/LTE system module need to be known the concrete time arriving of a certain moment point after current point in time, then notifies this module, allows it process corresponding affairs, and this just requires TPU that the interface of a registered events mechanism can be provided.Corresponding module only need to be told the corresponding time point of TPU module and process ID number, and while waiting this time point to arrive, TPU can produce interruption, in interrupt service routine the inside, sends out message to this module, and this module is received after message, just can carry out the processing of corresponding service.This event is single registration or periodic, only need to import the interface that TPU provides into by an indexed variable.
In correlation technique, support the multimode terminal of multiple network standard between each network formats of its support, to switch, and the asynchronism(-nization) of each network formats, it regularly realizes difficulty, and software maintenance is complicated.
Summary of the invention
The invention provides a kind of data processing method and device of multimode terminal, at least to solve in correlation technique, support the multimode terminal of multiple network standard between each network formats of its support, to switch, and the asynchronism(-nization) of each network formats, it regularly realizes difficulty, the problem of software maintenance complexity.
According to an aspect of the present invention, provide a kind of data processing method of multimode terminal, having comprised: the MRTR value of multimode terminal has been adjusted to the time consistent with network side frame boundaries under current network standard; The event registration that upstream data to be sent and/or the downlink data that receives need to be responded is in event information; According to event handling upstream data and/or the downlink data in MRTR value and event information.
Preferably, the MRTR value of multimode terminal is adjusted to the time consistent with network side frame boundaries under current network standard comprise following one of at least: the time slot of take is adjusted the MRTR value of multimode terminal as adjusting range; Directly enter next frame; The length that increases present frame, aligns the frame head of next frame and the current persistent district of multimode terminal.
Preferably, the MRTR value of multimode terminal being adjusted to the time consistent with network side frame boundaries under current network standard comprises: according to framing control frequency once, the MRTR value of multimode terminal is adjusted.
Preferably, the MRTR value of multimode terminal is adjusted to the time consistent with network side frame boundaries under current network standard to be comprised: according to current network standard and the definite MRTR value corresponding with current network standard of MRTR value that freely turn round, wherein, the MRTR value freely turning round is the MRTR value freely turning round of utilizing the work clock of a kind of network formats in the multiple network standard that multimode terminal supports to produce; MRTR value corresponding to current network standard is adjusted to the time consistent with network side frame boundaries under current network standard.
Preferably, the MRTR value freely turning round is to utilize the MRTR value freely turning round of the work clock generation of LTE system.
Preferably, according to current network standard and the MRTR value freely turning round, determine that the MRTR value corresponding with current network standard comprises: if current network standard is LTE system, determine that the MRTR value freely turning round is as the MRTR value corresponding with LTE system; If current network standard is WCDMA system, according to the ratio of the work clock of the work clock of LTE system and WCDMA system and the MRTR value that freely turns round, determine the MRTR value corresponding with WCDMA system; If current network standard is TD-SCDMA system, according to the ratio of the work clock of the work clock of LTE system and TD-SCDMA system and the MRTR value that freely turns round, determine the MRTR value corresponding with TD-SCDMA system.
Preferably, after determining the MRTR value corresponding with current network standard according to current network standard and the MRTR value freely turning round, said method also comprises: the MRTR value that the MRTR value corresponding with current network standard is converted into the frame structure form under current network standard.
The event registration that preferably, upstream data to be sent and/or the downlink data that receives need to be responded comprises to event information: by the event registration of present frame in event information; By the event registration that surpasses present frame in outstanding message.
Preferably, by after the event registration that surpasses present frame is in outstanding message, said method also comprises: according to the predetermined cycle, judge whether the event in outstanding message becomes the event of present frame; If so, qualified event is moved in event information, and delete the qualified event in outstanding message.
Preferably, above-mentioned event information is event table, event table comprises event master meter, interrupts sublist and radio frequency (Radio Frequency, referred to as RF) event sublist, wherein, event master meter is deposited periodicity or the single configuration of interruption and RF event according to wireless frame structure, interrupt sublist and deposit interrupting information and interrupt flag bit information, and RF event sublist is deposited RF control word and offset address.
Preferably, after the event registration that upstream data to be sent and/or the downlink data that receives need to be responded is in event information, said method also comprises: judge whether the event that will delete in outstanding message and the difference of current time are less than 1 frame; If be not less than 1 frame, direct deletion event in outstanding message, and by corresponding mark position 0; If be less than 1 frame, by the relevant position 0 of event corresponding in event master meter.
Preferably, above-mentioned outstanding message is to wait for chained list.
Preferably, according to event handling upstream data and/or downlink data in MRTR value and event information, comprise: according to interruption or the RF event in MRTR value clocked flip event information; According to interrupting or RF event, by radio frequency, send upstream data, and/or downlink data is processed.
Preferably, according to interrupting or RF event, by radio frequency, send upstream data, and/or before downlink data is processed, said method also comprises: the RF control word in event information is resolved.
According to a further aspect in the invention, provide a kind of data processing equipment of multimode terminal, having comprised: adjusting module, for the MRTR value of multimode terminal being adjusted to the time consistent with network side frame boundaries under current network standard; Registering modules, for event registration that upstream data to be sent and/or the downlink data that receives need to be responded to event information; Processing module, for according to event handling upstream data and/or the downlink data of MRTR value and event information.
By the present invention, the MRTR of multimode terminal is adjusted into the time consistent with network side frame boundaries under current network standard, in event information, register the event that pending data need to respond, then according to the above-mentioned data of the event handling in MRTR value and event information, wherein, event information is that the diverse network standard supported of multimode terminal is general, when multimode terminal switches in the multiple network standard of its support, MRTR to this terminal adjusts, implementation method is simple, and software maintenance is easier to.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the flow chart of the data processing method of the multimode terminal of the embodiment of the present invention;
Fig. 2 is according to the structured flowchart of the data processing equipment of the multimode terminal of the embodiment of the present invention;
Fig. 3 is the structural representation of the data processing equipment of multimode terminal according to the preferred embodiment of the invention;
Fig. 4 is the sequential chart that ascending-descending subframes head is located according to the preferred embodiment of the invention;
Fig. 5 is the sequential chart of according to the preferred embodiment of the invention MRTR being finely tuned;
Fig. 6 carries out the large sequential chart of adjusting to MRTR according to the preferred embodiment of the invention;
Fig. 7 is the schematic diagram that produces according to the preferred embodiment of the invention MRTR;
Fig. 8 is the schematic flow sheet of event registration according to the preferred embodiment of the invention;
Fig. 9 is the schematic diagram of event ordering according to the preferred embodiment of the invention;
Figure 10 registers the schematic flow sheet that interrupts and produce interruption according to the preferred embodiment of the invention;
Figure 11 is the schematic diagram of event table according to the preferred embodiment of the invention.
Embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
The embodiment of the present invention provides a kind of data processing method of multimode terminal, and Fig. 1 is according to the flow chart of the data processing method of the multimode terminal of the embodiment of the present invention, as shown in Figure 1, comprises that following step S102 is to step S106.
Step S102, is adjusted to the time consistent with network side frame boundaries under current network standard by the MRTR value of multimode terminal.
Step S104, the event registration that upstream data to be sent and/or the downlink data that receives need to be responded is in event information.
Step S106, according to event handling upstream data and/or the downlink data in MRTR value and event information.
In correlation technique, support the multimode terminal of multiple network standard between each network formats of its support, to switch, and the asynchronism(-nization) of each network formats, it regularly realizes difficulty, and software maintenance is complicated.By the present invention, the MRTR of multimode terminal is adjusted into the time consistent with network side frame boundaries under current network standard, in event information, register the event that pending data need to respond, then according to the above-mentioned data of the event handling in MRTR value and event information, wherein, event information is that the diverse network standard supported of multimode terminal is general, when multimode terminal switches in the multiple network standard of its support, MRTR to this terminal adjusts, implementation method is simple, and software maintenance is easier to.
In step S102, the MRTR value of multimode terminal is adjusted to the time consistent with network side frame boundaries under current network standard and can be in the following manner one of at least adjusts: (1) be take a time slot and the MRTR value of multimode terminal adjusted as adjusting range; (2) directly enter next frame; (3) increase the length of present frame, alignd in the frame head of next frame and the current persistent district of multimode terminal.Wherein, mode (1) can be called fine setting, and in practical application, last 5 time slots regulation of a frame does not allow registered events, so the time is adjusted in last 5 time slots of a frame, the event that can guarantee so is not lost.Mode (2) and mode (3) can be called large tune, and after having adjusted greatly, all events need to re-register, to prevent loss or the repeated trigger of event.Preferably, can to the MRTR value of multimode terminal, adjust according to framing control frequency once.
The process that produces MRTR is as follows:
According to current network standard and the MRTR value freely turning round, determine the MRTR value corresponding with current network standard, wherein, the MRTR value freely turning round is the MRTR value freely turning round of utilizing the work clock of a kind of network formats in the multiple network standard that multimode terminal supports to produce; MRTR value corresponding to current network standard is adjusted to the time consistent with network side frame boundaries under current network standard.
Preferably, the MRTR value freely turning round is to utilize the MRTR value freely turning round of the work clock generation of LTE system.
Preferably, according to current network standard and the MRTR value freely turning round, determine that the MRTR value corresponding with current network standard comprises: if current network standard is LTE system, determine that the MRTR value freely turning round is as the MRTR value corresponding with LTE system; If current network standard is WCDMA system, according to the ratio of the work clock of the work clock of LTE system and WCDMA system and the MRTR value that freely turns round, determine the MRTR value corresponding with WCDMA system; If current network standard is TD-SCDMA system, according to the ratio of the work clock of the work clock of LTE system and TD-SCDMA system and the MRTR value that freely turns round, determine the MRTR value corresponding with TD-SCDMA system.
Preferably, after determining the MRTR value corresponding with current network standard according to current network standard and the MRTR value freely turning round, said method also comprises: the MRTR value that the MRTR value corresponding with current network standard is converted into the frame structure form under current network standard.
In actual applications, MRTR counts according to the frame structure of each network formats, and LTE requires to be operated under 30.72M clock, and WCDMA requires to be operated under 15.36M clock, and TD-SCDMA requires to be operated under 10.24M clock.
Utilize three relations between clock frequency to produce the MRTR value under each network formats, utilize a set of MRTR freely turning round of 30.72M clock generating, can be directly for LTE after format conversion, then through except 2 and except after 3 respectively for WCDMA and TD-SCDMA, format conversion is mainly that the MRTR freely turning round is converted into the frame structure form under corresponding modes.
Step S104 comprises: by the event registration of present frame in event information; By the event registration that surpasses present frame in outstanding message.In actual applications, generally shift to an earlier date field registered events, can saving resource.
Preferably, by after the event registration that surpasses present frame is in outstanding message, said method also comprises: according to the predetermined cycle, judge whether the event in outstanding message becomes the event of present frame; If so, qualified event is moved in event information, and delete the qualified event in outstanding message.
Event table module is interrupted or universal input/output (General Purpose Input Output to registered events in RAM by software, referred to as GPIO) event, hardware is according to local_mrtr(network time benchmark) interruption of clocked flip event or GPIO event.Interruption can be the interruption of optional position in full frame, field or symbol.Interrupt type can be periodic or single.GPIO event is supported symbol level.Event table adopts 3 block RAMs to store the information of 3 tables, by software, in table, writes corresponding information, and hardware, according to the count value of local_mrtr, accurately produces corresponding event and interrupt signal.Under LTE pattern, TPU allocation list provides respectively normal cp(Cyclic Prefix, Cyclic Prefix) allocation list and under two kinds of patterns of extend cp, hardware is according to 2 tables of CP pattern automatic switchover, and the value time base freely turning round according to MRTR() the wireless frame header deviation of+offset(), can provide Event triggered for each symbol (symbol) of a frame.
TPU hardware supports mixed C P pattern to switch under LTE pattern, also supports single CP pattern.If do not configure switching, whether TPU can be operated under normal cp or extend cp pattern always, switch completely and determined by software.Every control signal that comprises interruption and symbol bias internal in TPU allocation list, in table, every comprises GPIO control signal and GPIO sublist index address.
Preferably, above-mentioned outstanding message is to wait for chained list.Above-mentioned event information is event table, event table comprises event master meter, interrupts sublist and radio frequency event sublist, wherein, event master meter is deposited periodicity or the single configuration of interruption and RF event according to wireless frame structure, interrupt sublist and deposit interrupting information and interrupt flag bit information, RF event sublist is deposited RF control word and offset address.
Preferably, after the event registration that upstream data to be sent and/or the downlink data that receives need to be responded is in event information, said method also comprises: judge whether the event that will delete in outstanding message and the difference of current time are less than 1 frame; If be not less than 1 frame, direct deletion event in outstanding message, and by corresponding mark position 0; If be less than 1 frame, by the relevant position 0 of event corresponding in event master meter.In this preferred embodiment, whether the event that judgement will be deleted and the difference of current time are less than 1 frame, thereby determine how to delete, if be less than 1 frame, by the relevant position 0 of event corresponding in event master meter, the event of registration just can not responded so in the past.Because the MRTR of registered events and the address of event master meter are relation one to one, interruption can realize random insertion, and software does not need interrupt event to sort yet.
Step S106 comprises: according to interruption or the RF event in MRTR value clocked flip event information; According to interrupting or RF event, by radio frequency, send upstream data, and/or downlink data is processed.To the processing of downlink data, can be the operations such as filtering, parsing.
Preferably, according to interrupting or RF event, by radio frequency, send upstream data, and/or before downlink data is processed, said method also comprises: the RF control word in event information is resolved.
The embodiment of the present invention also provides a kind of data processing equipment of multimode terminal, and the data processing equipment of this multimode terminal can be for realizing the data processing method of above-mentioned multimode terminal.Fig. 2 is according to the structured flowchart of the data processing equipment of the multimode terminal of the embodiment of the present invention, and as shown in Figure 2, this device comprises adjusting module 22, Registering modules 24 and processing module 26.Below its structure is described in detail.
Adjusting module 22, for being adjusted to the MRTR value of multimode terminal the time consistent with network side frame boundaries under current network standard; Registering modules 24, for event registration that upstream data to be sent and/or the downlink data that receives need to be responded to event information; Processing module 26, is connected to adjusting module 22 and Registering modules 24, the event handling upstream data and/or the downlink data that for the MRTR value after adjusting according to adjusting module 22 and Registering modules 24, are registered to event information.
In correlation technique, support the multimode terminal of multiple network standard between each network formats of its support, to switch, and the asynchronism(-nization) of each network formats, it regularly realizes difficulty, and software maintenance is complicated.By the present invention, the MRTR of multimode terminal is adjusted into the time consistent with network side frame boundaries under current network standard, in event information, register the event that pending data need to respond, then according to the above-mentioned data of the event handling in MRTR value and event information, wherein, event information is that the diverse network standard supported of multimode terminal is general, when multimode terminal switches in the multiple network standard of its support, MRTR to this terminal adjusts, implementation method is simple, and software maintenance is easier to.
Preferably, adjusting module 22 can be adjusted by following mode one of at least: the time slot of take is adjusted the MRTR value of multimode terminal as adjusting range; Directly enter next frame; The length that increases present frame, aligns the frame head of next frame and the current persistent district of multimode terminal.
Preferably, adjusting module 22 can be adjusted the MRTR value of multimode terminal according to framing control frequency once.
Preferably, adjusting module 22 comprises: determining unit, for determining the MRTR value corresponding with current network standard according to current network standard and the MRTR value freely turning round, wherein, the MRTR value freely turning round is the MRTR value freely turning round of utilizing the work clock of a kind of network formats in the multiple network standard that multimode terminal supports to produce; Adjustment unit, is connected to determining unit, for MRTR value corresponding to current network standard being adjusted to the time consistent with network side frame boundaries under current network standard.
Preferably, the MRTR value freely turning round is to utilize the MRTR value freely turning round of the work clock generation of LTE system.
Preferably, determining unit comprises: first determines subelement, in the situation that current network standard is LTE system, determines that the MRTR value freely turning round is as the MRTR value corresponding with LTE system; Second determines subelement, in the situation that current network standard is WCDMA system, according to the ratio of the work clock of the work clock of LTE system and WCDMA system and the MRTR value that freely turns round, definite MRTR value corresponding with WCDMA system; The 3rd determines subelement, for in the situation that current network standard is TD-SCDMA system, according to the ratio of the work clock of the work clock of LTE system and TD-SCDMA system and the MRTR value that freely turns round, determine the MRTR value corresponding with TD-SCDMA system.
Preferably, adjusting module 22 also comprises: format conversion unit, be connected to determining unit, and the MRTR value corresponding with current network standard is converted into the MRTR value of the frame structure form under current network standard.
Registering modules 24 comprises: the first registering unit, for by the event registration of present frame to event information; The second registering unit, for by the event registration that surpasses present frame to outstanding message.Preferably, above-mentioned outstanding message is to wait for chained list.
Preferably, Registering modules 24 also comprises: judging unit, be connected to the second registering unit, and for the cycle according to predetermined, judge whether the event of outstanding message becomes the event of present frame; Processing unit, for judgment result is that be in the situation that, moves to qualified event in event information, and deletes the qualified event in outstanding message.
Preferably, above-mentioned event information is event table, event table comprises event master meter, interrupts sublist and radio frequency event sublist, wherein, event master meter is deposited periodicity or the single configuration of interruption and RF event according to wireless frame structure, interrupt sublist and deposit interrupting information and interrupt flag bit information, RF event sublist is deposited RF control word and offset address.
Preferably, said apparatus also comprises: judge module, is connected to Registering modules 24, for judging whether the event that will delete of outstanding message and the difference of current time are less than 1 frame; Removing module, in the situation that being not less than 1 frame, direct deletion event in outstanding message, and by corresponding mark position 0; Set module, in the situation that being less than 1 frame, by the relevant position 0 of event corresponding in event master meter.
Preferably, processing module 26 also comprises: resolution unit, be connected to trigger element, and the RF control word in event information is resolved.
It should be noted that, the data processing equipment of the multimode terminal of describing in device embodiment is corresponding to above-mentioned embodiment of the method, and its concrete implementation procedure had been carried out detailed description in embodiment of the method, did not repeat them here.
From the above, multimode terminal in the embodiment of the present invention carries out data processing based on the time, support the MRTR counting of 3 kinds of patterns (WCDMA, TD-SCDMA, LTE), adopt the adjustment mode (large mediation finely tuned) of 2 kinds of different scenes, keep the MRTR of terminal and aliging of network side.The method for designing that MRTR value produces, adopts MRTR who freely turns round of 30.72M clock generating, then changes into the MRTR value of other patterns.The embodiment of the present invention has also designed a kind of event table of software programmable, adopts the mechanism of master meter sublist separation, can produce GPIO event and interrupt event, and under LTE pattern, has both supported mixed C P pattern to switch, and also supports single CP pattern.The embodiment of the present invention is supported event table setting/removing (set/clear) function, avoids the sequence of software to event.During registered events, increased Wait_list, software can need current field the event of response to write in Wait_list later, has avoided the sequence of software.
In order to make technical scheme of the present invention and implementation method clearer, below in conjunction with preferred embodiment and accompanying drawing, its implementation procedure is described in detail.
Fig. 3 is the structural representation of the data processing equipment of multimode terminal according to the preferred embodiment of the invention, as shown in Figure 3, this device (being TPU) comprising: up transmitting element 302, descending receiving element 304, time reference unit 306, event table unit 308, radio frequency control word resolution unit 310 and serial peripheral interface (Serial Peripheral Interface, referred to as SPI) control unit 312.Below its structure is described in detail.
Up transmitting element 302(has realized the partial function of above-mentioned processing module 26), complete software radio (Software Defined Radio, referred to as SDR) buffer memory of the antenna data of TX input, adopt event table to produce accurate timing signal controlling buffer memory (BUFFER) data and send.
Descending receiving element 304(has realized the partial function of above-mentioned processing module 26), complete the buffer memory to antenna (RF/ABB) data of radio frequency input data, realize data cached the aliging of base during with network, SDR takes out respectively data according to TPU accurate timing and processes.
Time reference unit 306(has realized the function of above-mentioned adjusting module 22), maintain 2 cover time references, it is time base when base and network of free-running operation, the time base of base during according to LOCAL_MRTR(network)=MRTR(free-running operation) the wireless frame header deviation of+OFFSET() adjust, its ascending-descending subframes head location sequential chart, as shown in Figure 4, be mainly used in the position of locator frame head in buffer, its computing formula is as follows: (n+ (307200-offset-M) %30720) %30720, wherein, n is the numbers of data in buffer, the result that above-mentioned formula calculates is just the position of subframe head in buffer, because remainder operation is bad, with hardware, realize, so calculate with software in reality as far as possible, keynote perfect square formula while having designed 2 kinds of networks: inching and large adjustment, completing LOCAL_MRTR remains with main plot and synchronizes.
Event table unit 308(has realized the function of above-mentioned Registering modules 24), complete event table module and interrupt or GPIO event to registered events in RAM by software, hardware interrupts or GPIO event according to LOCAL_MRTR clocked flip event.Interruption can be the interruption of optional position in full frame, field or symbol.Interrupt type can be periodic or single.GPIO event is supported symbol level.Event table adopts 3 block RAMs to store the information of 3 tables, by software, in table, writes corresponding information, and hardware, according to the count value of LOCAL_MRTR, accurately produces corresponding event and interrupt signal.
Radio frequency control word resolution unit 310(has realized the function of above-mentioned resolution unit), complete the parsing to the radio frequency control word of event table output, these instructions and control word are issued to different modules and peripheral hardware.
SPI control unit 312, complete SPI control word that software is directly produced (by BMI bus transfer to SPI control unit 312) and the SPI order of timing controlled generation and the parallel data grabbing card of synchronous serial interface controller (Synchronous Serial Interface Controller, referred to as SSC) module.
In conjunction with the processing procedure of upstream data and downlink data, such scheme is described in detail respectively below.
(1) for up transmission, SDR TX writes to BUFFER the inside according to LTE/WCDMA/TD-SCDMA data rate separately, and up transmitting element 302 is read from BUFFER according to phase same rate.By TPU RF event table, produce accurate timing signal controlling BUFFER data reading and send by radio-frequency antenna (RF/ABB), describe the process that event table is registered up event below in detail:
The first step, selects mode of operation, at LTE/WCDMA/TD-SCDMA, selects a kind of working method as multimode terminal wherein.
Second step, the MRTR time by time reference unit 306 adjustment UE sides, is consistent UE and network side frame boundaries.The MRTR time of adjusting UE side can be used large tune or the fine adjustment function of TPU, specifically as shown in Figure 5 and Figure 6.
Fig. 5 is the sequential chart of according to the preferred embodiment of the invention MRTR being finely tuned, as shown in Figure 5, when system needs inching MRTR to align with community, TPU supports positive justification and two kinds of operations of negative justification, inching adjust frequency be a framing control once, amplitude is +/-1Ts.Software operates accordingly: when finding to carry out inching to the TPU time, to corresponding registers, send and adjust order, after TPU Hardware Response Delay adjustment order, can in the last 5Ts of a frame (10ms), to the time, adjust, the event that can guarantee so is not lost, because last 5Ts regulation does not allow registered events.
Fig. 6 carries out the large sequential chart of adjusting to MRTR according to the preferred embodiment of the invention, and as shown in Figure 6, when system need to significantly be adjusted MRTR, TPU supports short framing control and long framing control.Wherein, short framing control is directly jumped into lower frame after referring to that this frame receives that adjustment is ordered; Long framing control refers to and is receiving long adjustment after order, adjusts backward the length of present frame is increased, thereby lower frame frame head is alignd with community.
The frequency of significantly adjusting be a frame once, scope is time slots (Time Slot, referred to as TS) arbitrarily in 1024 frames.Software operates accordingly: when finding to adjust greatly the TPU time, according to being related to LOCAL_MRTR=MRTR+OFFSET, to corresponding registers, sending out and write adjusted value, after TPU Hardware Response Delay adjustment order, can adjust accordingly operation.After large adjustment, all events need to re-register, to prevent loss or the repeated trigger of event.
As shown in Figure 7, MRTR counts according to the frame structure of each pattern MRTR production process, and LTE pattern requires to be operated under 30.72M clock, and WCDMA pattern requires to be operated under 15.36M clock, and TD-SCDMA pattern requires to be operated under 10.24M clock.Time reference unit 306 mainly utilizes three relations between clock frequency to produce the MRTR value of each pattern, utilize a set of MRTR freely turning round of 30.72M clock generating, after format conversion, can directly supply LTE pattern using, then through except 2 and except after 3 respectively for WCDMA and TD-SCDMA, format conversion is mainly that the MRTR freely turning round is converted into the frame structure form under corresponding modes, and this method will compare saving resource from realizing.
But except 3 circuit can produce error, during actual use, to the error except 3 circuit be held and be weighed.Except specific implementation and the error of 3 circuit are as follows, wherein, except adopting to move to left, 3 circuit computational methods can complete with add circuit, as follows:
A/3=a/4+a/4
2+ a/4
3+ ... + a/4 ..., wherein, a is will be except 3 number, error is less than a/(2*4
n).
The 3rd step is registered up processing event in event table unit 308, upstream data is needed in process of transmitting the event of response be all registered in event table, bide one's time while being carved into, send and interrupt to processor, carry out corresponding interrupt handling routine, the processing of complete paired data.
Specifically as shown in Figure 8, the event of present frame is directly registered in event table the flow process of registered events, and the event that surpasses present frame is first registered in Wait_list.When field arrives constantly, hardware is inquiry Wait_list automatically, and qualified event is transplanted on to (in symbol writing events table) in event table, discharges corresponding memory space in Wait_list simultaneously.In up-downgoing registered events process, all can register the event that surmounts current frame number shows at waitlist, these events can be when corresponding frame number arrives auto registration in event table, corresponding if this event does not need, can directly in waitlist, delete.
It is as follows that Wait_list specifically reads and writes event procedure:
During registered events, when field arrives constantly, from Wait_list, according to triggering, constantly search for qualified event registration in mast, from first address, start search at every turn.
In Wait_list, write event procedure, software can write the event of needs response in Wait_list at any time, but need write frame number information.While writing event, first software write data in fixing register, then hardware writes event in corresponding address, this address is the address that hardware calculates in advance, simultaneously 1(address mark position, corresponding address mark position is to represent that this address can data writing at 0 o'clock, is to represent that this address can not data writing at 1 o'clock), computational methods process is as shown in Figure 9, according to each address whether can with marker bit calculate, calculate the address that priority is higher at every turn.Priority determines by the size of address, and 0 address priority is the highest, and 255 address priorities are minimum.
Delete interrupt event process as follows:
If trigger event and poor 1 frame that is greater than of current time deleted are directly deleted, simultaneously by corresponding mark position 0 in Wait_list; If the time difference is less than 1 frame, and be regular interrupt event, software can be by the address of calculating and byte_en by the full set 0 of interruption relevant bits corresponding in master meter, like this before the event of registration just can not responded.Because the MRTR of registered events and the address of master meter are relation one to one, corresponding relation sees below, and interruption can realize random insertion, and software does not need interrupt event to sort yet.
Figure 10 registers the schematic flow sheet that interrupts and produce interruption according to the preferred embodiment of the invention, as shown in figure 10, each registration need shift to an earlier date half frame time while interrupting, and at front field, registers the event that lower field will respond, the event that response has been registered when lower field arrives constantly.
Figure 11 is the schematic diagram of event table according to the preferred embodiment of the invention, and as shown in figure 11, whole event table adopts the master meter design separated with sublist: master meter is deposited and interrupted and periodicity/single configuration of RF sublist event according to wireless frame structure; Interrupt sublist and deposit interrupting information and interrupt flag bit information; RF sublist is deposited RF control word information and offset address.
In TPU master meter 0 ~ 149th, the TPU master meter under normal CP pattern, 256 ~ 375th, the TPU master meter under expansion CP pattern.Wherein, int is 14 bits, and bit1 periodically produces signal, and bit2 is that single produces signal, and bit3-bit14 interrupts skew (offset_int).Rf is 8 bits, and bit1 ~ bit6 is GPIO allocation index, and bit7 is that single produces signal, and bit8 periodically produces signal.
Interrupt sublist, i.e. TPU int allocation list (140), the Tpuint interrupting in sublist is 2 bits, and bit2 indication dsp interrupts, and bit1 indication arm interrupts.Int_index has 8 bits, represents Int_index_dsp or Int_index_arm, wherein, Int_index_arm represents the index that arm interrupts, and arranges at first, in table when TPU interrupts arriving, to be kept at and interrupt, in indexed registers, by read register, obtaining this index.Int_index_dsp represents that dsp interrupts index, arranges at first in table, when TPU interrupts arriving, will be kept at and interrupt, in indexed registers, by read register, obtaining this index.When TPU master meter produces, interrupt, this table will be exported and interrupt and index.
RF sublist, i.e. rf event table (1024), the Continue in RF sublist is 1 bit, according to symbol, indicates next RF event.Offset is 12 bits, and unit is chip, 0～2207.Rf is 32 bits.In this table, also deposited RF control word.
Event table module is interrupted or GPIO event to registered events in RAM by software, and hardware interrupts or GPIO event according to local_mrtr clocked flip event.Interruption can be the interruption of optional position in full frame, field or symbol.Interrupt type can be periodic or single.GPIO event is supported symbol level.Event table adopts 3 block RAMs to store the information of 3 tables, by software, in table, writes corresponding information, and hardware, according to the count value of local_mrtr, accurately produces corresponding event and interrupt signal.Under LTE pattern, TPU allocation list provides respectively the allocation list under normal cp and two kinds of patterns of extend cp, and hardware to be according to CP pattern 2 tables that automatically switch, and according to the value of MRTR+offset, can provide Event triggered for each symbol of a frame.
TPU hardware supports mixed C P pattern to switch under LTE pattern, also supports single CP pattern.If do not configure switching, whether TPU can be operated under normal cp or extend cp pattern always, switch completely and determined by software.Every control signal that comprises interruption and symbol bias internal in TPU allocation list, in table, every comprises GPIO control signal and GPIO sublist index address.
The 4th step, the data that will send are written in the BUFFER of up transmitting element 302, to process the next data that will send.
The 5th step, by MRTR value accurate timing and radio frequency control word resolution unit 310, sends the data in BUFFER by radio frequency.
(2), for descending reception, for descending subsystems module, only need TPU accurate timing to take out respectively data and process, describe the process that event table is registered descending event below in detail:
The first step, selects mode of operation, at LTE/WCDMA/TD-SCDMA, selects a kind of working method as multimode terminal wherein.
Second step, the MRTR time by time reference unit 306 adjustment UE sides, UE and network side frame boundaries are consistent, the second step of concrete adjustment process and up transmission is identical, repeats no more herein.
The 3rd step, by event table unit 308, will need the event registration of response in event table in current downlink data, the 3rd step of concrete registration process and up transmission is identical, repeats no more herein.
The 4th step, according to MRTR value accurate timing and radio frequency control word resolution unit 310, by radio frequency reception to data buffer storage to the BUFFER in descending receiving element 304.
The 5th step according to the event in event table, sends and interrupts to processor when constantly arriving, and carries out corresponding interrupt handling routine, and the BUFFRR from descending receiving element 304 fetches data and processes.
It should be noted that, in the step shown in the flow chart of accompanying drawing, can in the computer system such as one group of computer executable instructions, carry out, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.
In sum, according to the abovementioned embodiments of the present invention, provide a kind of data processing method and device of multimode terminal.By the present invention, the MRTR of multimode terminal is adjusted into the time consistent with network side frame boundaries under current network standard, in event information, register the event that pending data need to respond, then according to the above-mentioned data of the event handling in MRTR value and event information, wherein, event information is that the diverse network standard supported of multimode terminal is general, when multimode terminal switches in the multiple network standard of its support, MRTR to this terminal adjusts, implementation method is simple, and software maintenance is easier to.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.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 modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (15)
1. a data processing method for multimode terminal, is characterized in that comprising:
The mobile wireless time reference MRTR value of multimode terminal is adjusted to the time consistent with network side frame boundaries under current network standard;
The event registration that upstream data to be sent and/or the downlink data that receives need to be responded is in event information;
According to upstream data and/or described downlink data described in the event handling in described MRTR value and described event information.
2. method according to claim 1, is characterized in that, by the MRTR value of multimode terminal be adjusted to the time consistent with network side frame boundaries under current network standard comprise following one of at least:
The time slot of take is adjusted the MRTR value of described multimode terminal as adjusting range;
Directly enter next frame;
The length that increases present frame, aligns the frame head of next frame and the current persistent district of described multimode terminal.
3. method according to claim 1, it is characterized in that, the MRTR value of multimode terminal is adjusted to the time consistent with network side frame boundaries under current network standard and comprises: according to framing control frequency once, the MRTR value of described multimode terminal is adjusted.
4. method according to claim 1, is characterized in that, the MRTR value of multimode terminal is adjusted to the time consistent with network side frame boundaries under current network standard and comprises:
According to described current network standard and the MRTR value freely turning round, determine the MRTR value corresponding with described current network standard, wherein, the described MRTR value freely turning round is the MRTR value freely turning round of utilizing the work clock of a kind of network formats in the multiple network standard that described multimode terminal supports to produce;
MRTR value corresponding to described current network standard is adjusted to the time consistent with network side frame boundaries under described current network standard.
5. method according to claim 4, is characterized in that, the described MRTR value freely turning round is to utilize the MRTR value freely turning round of the work clock generation of long evolving system.
6. method according to claim 5, is characterized in that, according to described current network standard and the MRTR value freely turning round, determines that the MRTR value corresponding with described current network standard comprises:
If described current network standard is Long Term Evolution LTE system, determine that the described MRTR value freely turning round is as the MRTR value corresponding with described LTE system;
If described current network standard is Wideband Code Division Multiple Access (WCDMA) access WCDMA system, according to the ratio of the work clock of the work clock of described LTE system and described WCDMA system and the described MRTR value freely turning round, determine the MRTR value corresponding with described WCDMA system;
If described current network standard is TD SDMA access TD-SCDMA system, according to the ratio of the work clock of the work clock of described LTE system and described TD-SCDMA system and the described MRTR value freely turning round, determine the MRTR value corresponding with described TD-SCDMA system.
7. method according to claim 4, is characterized in that, after determining the MRTR value corresponding with described current network standard according to described current network standard and the MRTR value freely turning round, described method also comprises:
The MRTR value corresponding with described current network standard is converted into the MRTR value of the frame structure form under described current network standard.
8. method according to claim 1, is characterized in that, the event registration that upstream data to be sent and/or the downlink data that receives need to be responded comprises to event information:
By the event registration of present frame in described event information;
By the event registration that surpasses present frame in outstanding message.
9. method according to claim 8, is characterized in that, by after the event registration that surpasses present frame is in outstanding message, described method also comprises:
According to the predetermined cycle, judge whether the event in described outstanding message becomes the event of present frame;
If so, described qualified event is moved in described event information, and delete the described qualified event in described outstanding message.
10. according to the method described in any one in claim 1 to 9, it is characterized in that, described event information is event table, described event table comprises event master meter, interrupts sublist and radio frequency event sublist, wherein, described event master meter is deposited periodicity or the single configuration of interruption and RF event according to wireless frame structure, described interruption sublist is deposited interrupting information and interrupt flag bit information, and described RF event sublist is deposited RF control word and offset address.
11. methods according to claim 10, is characterized in that, after the event registration that upstream data to be sent and/or the downlink data that receives need to be responded is in event information, described method also comprises:
Judge whether the event that will delete in described outstanding message and the difference of current time are less than 1 frame;
If be not less than 1 frame, directly in described outstanding message, delete described event, and by corresponding mark position 0;
If be less than 1 frame, by the relevant position 0 of described event corresponding in described event master meter.
12. methods according to claim 11, is characterized in that, described outstanding message is to wait for chained list.
13. according to the method described in any one in claim 1 to 9, it is characterized in that, according to upstream data described in the event handling in described MRTR value and described event information and/or described downlink data, comprises:
According to interruption or the RF event in event information described in described MRTR value clocked flip;
According to described interruption or RF event, by radio frequency, send described upstream data, and/or described downlink data is processed.
14. methods according to claim 13, is characterized in that, according to interrupting or RF event, send upstream data, and/or before downlink data is processed, described method also comprise by radio frequency:
RF control word in described event information is resolved.
The data processing equipment of 15. 1 kinds of multimode terminals, is characterized in that comprising:
Adjusting module, for being adjusted to the mobile wireless time reference MRTR value of multimode terminal the time consistent with network side frame boundaries under current network standard;
Registering modules, for event registration that upstream data to be sent and/or the downlink data that receives need to be responded to event information;
Processing module, for according to upstream data described in the event handling of described MRTR value and described event information and/or described downlink data.
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Application publication date: 20140312 Assignee: Xi'an Chris Semiconductor Technology Co. Ltd. Assignor: SHENZHEN ZTE MICROELECTRONICS TECHNOLOGY CO., LTD. Contract record no.: 2019440020036 Denomination of invention: Data processing method and apparatus for multi-mode terminal Granted publication date: 20190205 License type: Common License Record date: 20190619 |