CN101742673A - Implementation method and terminal for TD-SCDMA_HSUPA (time division-synchronization code division multiple access high speed uplink packet access) - Google Patents
Implementation method and terminal for TD-SCDMA_HSUPA (time division-synchronization code division multiple access high speed uplink packet access) Download PDFInfo
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- CN101742673A CN101742673A CN200810179136A CN200810179136A CN101742673A CN 101742673 A CN101742673 A CN 101742673A CN 200810179136 A CN200810179136 A CN 200810179136A CN 200810179136 A CN200810179136 A CN 200810179136A CN 101742673 A CN101742673 A CN 101742673A
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- 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
Abstract
The invention discloses implementation method and terminal for TD-SCDMA HSUPA (time division-synchronization code division multiple access high speed uplink packet access), wherein the method comprises the following steps of: downlink processing: implementing the decoding of a downlink E-AGCH (enhanced-absolute grant channel) through a downlink channel decoding subsystem, and implementing the decoding of an E-HICH (E-DCH hybrid ARQ indicator channel) through a digital signal processing module; and/or uplink processing: implementing the coding processing of the uplink E-DCH/E-RUCCH (E-DCH random access uplink control channel) of HSUPA through an HSUPA uplink transmitting subsystem. The invention can further define the uplink service processing mode of the TD-SCDMA_HSUPA and the processing mode of downlink channel decoding based on a functional framework realizing the TD-SCDMA_HSUPA, realizes the function of the TD-SCDMA HSUPA only through smaller alternation, fills a gap in a relevant technology, and has no effect on the relevant vivificated functions of the TD-SCDMA HSUPA.
Description
Technical field
The present invention relates to TD SDMA (Time Division-SynchronousCode Division Multiple Access, abbreviate TD-SCDMA as) communications field, and especially, relate to a kind of high speed uplink packet and insert (TD-SCDMA_High Speed Uplink Packet Access based on TD-SCDMA, abbreviate TD-SCDMA_HSUPA as, also can be called TD_HSUPA) implementation method and terminal.
Background technology
The TD-SCDMA communication system is a kind of 3-G (Generation Three mobile communication system).
At present, at the TD-SCDMA communication system, producer has made up digital baseband (Digital Base Band abbreviates DBB as) the processing framework of high speed downlink packet access (High Speed Downlink Packet Access abbreviates HSDPA as) function mostly.Inserting HSUPA as the high speed uplink packet of follow-up technology evolution, will be the competition spot that current TD-SCDMA system possesses potentiality very much.
Therefore, no longer be difficult point although realize the TD-SCDMA_HSDPA technical scheme at present, yet, at TD-SCDMA_HSUPA effective implementation is not proposed as yet.
Summary of the invention
At the problem of the implementation that lacks TD-SCDMA_HSUPA in the prior art and propose the present invention, main purpose of the present invention is on existing TD-SCDMA_HSDPA technical scheme basis, and implementation method and the terminal of a kind of TD-SCDMA_HSUPA is provided.
According to an aspect of the present invention, providing a kind of high speed uplink packet based on the synchronous time division code division multiple access to insert is the implementation method of TD-SCDMA_HSUPA, and it is to realize TD_HSUPA on the physical structure basis of TD_HSDPA that this method is used in that high speed downlink packet based on the synchronous time division code division multiple access inserts.
Implementation method according to TD-SCDMA_HSUPA of the present invention comprises:
Downlink processing: realize that by down channel decoding subsystem the absolute access grant channel of descending enhancing dedicated channel E-DCH is the decoding of E-AGCH, and realize that by digital signal processing module the hybrid automatic repeat request indication channel of E-DCH is the decoding of E-HICH; And/or
Up processing: realize that by the up transmission subsystem of HSUPA the Random Access Channel of the up E-DCH/E-DCH of HSUPA is the encoding process of E-RUCCH.
Wherein, downlink processing can further comprise: digital signal processing module reports decode results to E-HICH to high level.
Up processing can further comprise: realize the encoding process and the emission of HSUPA business by the up transmission subsystem of HSUPA.
Alternatively, up processing can further include: realize the encoding process and the emission of general service by common up transmission subsystem.
According to a further aspect in the invention, provide a kind of terminal, this terminal is used on the physical structure basis of TD_HSDPA and realizes TD-SCDMA_HSUPA.
Terminal according to present embodiment comprises: down channel decoding subsystem is used to realize that descending enhancing dedicated channel is that the absolute access grant channel of E-DCH is the decoding of E-AGCH; Digital signal processing module is used to realize that the hybrid automatic repeat request indication channel of descending E-DCH is the decoding of E-HICH; The up transmission subsystem of HSUPA is used to realize that the Random Access Channel of up E-DCH and E-DCH is the encoding process of E-RUCCH.
This terminal can further comprise: common up transmission subsystem is used to realize the encoding process and the emission of general service.
Preferably, this terminal also can further comprise: the joint-detection subsystem is used for baseband signal is carried out chip-level descrambling and despreading processing, and the signal after the joint-detection is offered down channel decoding subsystem.
By means of the present invention, based on the uplink service processing mode of the further definition of T D-SCDMA_HSUPA of function structure that realizes TD-SCDMA_HSDPA and the processing mode of down channel decoding, only just realized the TD-SCDMA_HSUPA function by less change, fill up the blank in the correlation technique, and do not influenced the correlation function of the TD-SCDMA_HSDPA that had verified.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the block diagram according to the terminal of the realization TD-SCDMA_HSUPA of apparatus of the present invention embodiment;
Fig. 2 is a schematic diagram of carrying out the downlink processing process according to the terminal of the realization TD-SCDMA_HSUPA of apparatus of the present invention embodiment;
Fig. 3 is a schematic diagram of carrying out up processing procedure according to the terminal of the realization TD-SCDMA_HSUPA of apparatus of the present invention embodiment.
Embodiment
Functional overview
Consider and lack the problem that realizes the TD-SCDMA_HSUPA technical scheme in the prior art, the present invention is based on the TD-SCDMA_HSDPA system architecture, the uplink service processing mode of TD-SCDMA_HSUPA and the processing mode of down channel decoding have further been defined, thereby effectively realized the TD-SCDMA_HSUPA function, filled up the blank in the correlation technique.
Device embodiment
In the present embodiment, provide a kind of terminal, this terminal can realize TD-SCDMA_HSUPA on existing HSDPA basis.
Fig. 1 has schematically provided the structure according to the terminal of present embodiment.
As shown in Figure 1, comprise according to the terminal of present embodiment: the up transmission subsystem of TD-SCDMA_HSUPA (HSUPA Uplink Transmit abbreviates HUTR as), promptly TD_HUTR 10; The down channel decoding of TD-SCDMA (Downlink ChannelDecoding is called for short DCC) subsystem, promptly TD_DCC 20; Digital Signal Processing (DigitalSignal Processing, DSP) module 30; The up transmission subsystem of TD-SCDMA general service (General Uplink Transmit is called for short GUTR), promptly TD_GUTR 40; Joint-detection (Joint Detection is called for short JD) subsystem, promptly TD_RX 50.
DSP module 30 can be used to control the uplink and downlink data processing task and relevant parameter is set, so DSP module 30 all is connected with other a plurality of modules.
In addition, DSP module 30 is connected to shared double port memory (Double Port RandomAccess Memory abbreviates DPRAM as),, realizes communicating by letter between DSP and the arm processor 70 by DPRAM 60 that is.Wherein, ARM module 70 is used to realize Access Layer AS and Non-Access Stratum NAS agreement.
In addition, TD_HUTR 10 can be connected to DPRAM (the shared memory space between ARM and the DSP module 30 can be used for storing the transmission block that high level issues) 60, is used to realize the processing and the emission of HSUPA upstream data;
TD_DCC 20 can be used for realizing strengthening the decoding of the absolute access grant channel (E-DCH Absolute Grant Channel is called for short E-AGCH) of dedicated channel;
TD_GUTR 40 is connected to DPRAM (the shared memory space between ARM and the DSP module 30) 60, can be used for storing the transmission block that high level issues, and is used to realize the up processing of general service;
TD_RX 50 is connected to TD_DCC 20, is used for baseband signal is carried out joint-detection, and the signal after the joint-detection is offered TD_DCC 20, to carry out channel decoding.
Particularly, professional upstream data processing provides support to TD-SCDMA_HSUPA by realizing the processing that TD-SCDMA_HSUPA strengthens the Random Access Channel (E-DCH RandomAccess Uplink Control Channel is called for short E-RUCCH) of dedicated channel (E-DCH)/enhancings dedicated channel come for TD_HUTR 10.
Concrete decoding step can be referring to 3GPP agreement 25.222 when TD_DCC 20 carried out the channel decoding of E-AGCH.Wherein, the decode procedure of E-AGCH has 8 steps, and the decoding flow process of decoding flow process and general service is basic identical.Can obtain the schedule information that E-AGCH goes up carrying by decoding to E-AGCH, it is HICH indications that 2 bit are wherein arranged, be used to indicate the automatic repeat requests of mixing (Hybrid Automatic RepeatreQuest, HARQ) reply indication and on any bar E-HICH, transmit (usually, 4 E-HICH can be arranged) for each user.
Concrete decoding step can be referring to 3GPP agreement 25.222 when DSP module 30 was carried out E-HICH decoding, flow process to E-HICH decoding comprises 2 steps, by decoding can obtain correct response message (ACK) or wrong responses information (NACK) to E-HICH, report high level afterwards.
Fig. 2 is a schematic diagram of carrying out the downlink processing process according to the terminal of the realization TD_HSUPA of present embodiment.
As shown in Figure 2, in realizing the downlink processing process of TD_HSUPA, at first adopt hardware accelerator to carry out reception and the processing of AGCH, specifically comprise: accept filter, joint-detection, TD_DCC be to the decoding of AGCH.Then, carrying out the HICH channel according to HICH indication receives and handles: accept filter, the HICH data of joint-detection, output 88bit are used for HICH decoding.
The DSP module can obtain the HICH channel parameter according to the HICH indication, and the processing of DSP module can relate to the decoding of HICH and report high level.
On the other hand, the up processing of TD_HSUPA then need be considered the support to E-DCH and E-RUCCH, up enhancing access channel (E-DCH Access Uplink Control Channel abbreviates E-UCCH as) chnnel coding on the basis of original TD_HSDPA framework.
Wherein, can adopt the coded system of 3GPP agreement 25.222 regulations to the coding of E-UCCH, comprise for 2 steps, concrete coding flow process is identical with the coding flow process of general service; Can adopt the coded system of 3GPP agreement 25.222 regulations to the coding of E-RUCCH, comprise for 6 steps, the coding flow process of coding flow process and Packet Random Access Channel (Packet Random AccessChannel abbreviates PRACH as) is identical; Can adopt the coded system of 3GPP agreement 25.222 regulations to the coding of E-DCH, specifically comprised for 8 steps, from adding cyclic redundancy check (CRC) (Cyclic Redundancy Check, abbreviate CRC as) be the same to chnnel coding and general service, interweave for the second time afterwards and rate-matched, modulation system are distinguished to some extent, increase HARQ and constellation rearrangement module.
Fig. 3 is a schematic diagram of carrying out up processing procedure according to the terminal of the realization TD_HSUPA of present embodiment.
As shown in Figure 3, be divided into two-way in the up processing procedure that realizes TD_HSUPA:
(1) based on the upstream data of the TD_GUTR subsystem processes general service of TD-SCDMA, promptly to the shared information indicating channel (HS-SICH) of PRACH/DCH and high speed descending sharing channel carry out up channel coding (Uplink Channel Coding is called for short UCC) (TD_UCC) and emission handle;
(2) based on the upstream data of the TD_HUTR subsystem processes TD-SCDMA_HSUPA business of TD-SCDMA, promptly the E-RUCCH/E-UCCH/E-DCH channel is carried out up channel coding (TD-SCDMA_HSUPA Uplink Channel Coding is called for short TD_HUCC) and emission processing.
Wherein, uplink processing module TD_HUTR and TD_GUTR all are connected to DPRAM, and wherein, the TD_HUTR subsystem comprises TD_HUCC and TD_HTX, i.e. HSUPA data emission after moulding of TD_HTX time slot and filtering after the up coding of TD_HUCC; TD_GUTR comprises TD_UCC and TD_TX, and promptly the general service data are launched at the general transmit time slot through common transmitting channel (TX) after the up coding of TD_UCC.
For the up processing branch road of realizing TD_HUTR makes up, can adopt following processing mode: at first inherit the TD_GUTR internal module, add two modular design of HARQ and constellation rearrangement afterwards, reach support by revising RAM design and module interface then function.
By above-mentioned terminal, can effectively realize the TD-SCDMA_HSUPA function under the prerequisite of the TD-SCDMA_HSDPA function of empirical tests not influencing, fill up the blank in the correlation technique.
Method embodiment
In the present embodiment, provide the implementation method of a kind of TD-SCDMA_HSUPA, this method is used in and inserts based on the high speed downlink packet of synchronous time division code division multiple access is to realize TD-SCDMA_HSUPA on the physical structure basis of TD-SCDMA_HSDPA.
Can followingly realize according to downlink processing and/or up processing in the implementation method of the TD-SCDMA_HSUPA of present embodiment:
Downlink processing: decipher the decoding that subsystem is realized the absolute access grant channel (E-AGCH) of enhancing dedicated channel by down channel, and realize the decoding of E-HICH and report decode results by Digital Signal Processing (DSP);
Up processing: realize that based on the up transmission subsystem of TD-SCDMA_HSUPA TD-SCDMA_HSUPA strengthens the encoding process of the Random Access Channel (E-DCH/E-RUCCH) of dedicated channel/enhancing dedicated channel, and the information behind the up launching code.
In addition, in order to realize the up processing of the general service outside the HSUPA uplink service, in up processing,, can realize the up encoding process and the up emission of general service by common up transmission subsystem for general service.
Preferably, based on terminal shown in Figure 1, can be according to the process that the implementation method of the TD-SCDMA_HSUPA of present embodiment descends row decoding to handle referring to Fig. 2, the process of carrying out up coding and emission processing can be referring to Fig. 3, treatment step among Fig. 2 and Fig. 3 is described hereinbefore, no longer repeats here.
In sum, the present invention is based on the system architecture of TD-SCDMA_HSDPA function, the uplink service processing mode of TD-SCDMA_HSUPA and the processing mode of down channel decoding have further been defined, inherit existing authentication module, only just realized the TD-SCDMA_HSUPA function, filled up the blank in the correlation technique by less change; And can not influence the correlation function of the current TD-SCDMA_HSDPA that had verified, fully meet the need of market, improve the competitive advantage of the current mobile phone base band chip of researching and developing.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the high speed uplink packet access based on the synchronous time division code division multiple access is the implementation method of TD-SCDMA_HSUPA, being used for inserting based on the high speed downlink packet of synchronous time division code division multiple access is to realize TD_HSUPA on the physical structure basis of TD_HSDPA, it is characterized in that described method comprises:
Downlink processing: realize that by down channel decoding subsystem the absolute access grant channel of descending enhancing dedicated channel E-DCH is the decoding of E-AGCH, and realize that by digital signal processing module the hybrid automatic repeat request indication channel of E-DCH is the decoding of E-HICH; And/or
Up processing: realize that by the up transmission subsystem of HSUPA the Random Access Channel of the up E-DCH/E-DCH of HSUPA is the encoding process of E-RUCCH.
2. method according to claim 1 is characterized in that, described downlink processing further comprises:
Described digital signal processing module reports decode results to described E-HICH to high level.
3. method according to claim 1 is characterized in that, described up processing further comprises:
Realize the encoding process and the emission of HSUPA business by the up transmission subsystem of described HSUPA.
4. according to claim 1 or 3 described methods, it is characterized in that described up processing further comprises:
Realize the encoding process and the emission of general service by common up transmission subsystem.
5. terminal, being used for inserting based on the high speed downlink packet of synchronous time division code division multiple access is to realize on the physical structure basis of TD_HSDPA that it is TD-SCDMA_HSUPA that high speed uplink packet based on the synchronous time division code division multiple access inserts, it is characterized in that described terminal comprises:
Down channel decoding subsystem is used to realize that descending enhancing dedicated channel is that the absolute access grant channel of E-DCH is the decoding of E-AGCH;
Digital signal processing module is used to realize that the hybrid automatic repeat request indication channel of descending E-DCH is the decoding of E-HICH;
The up transmission subsystem of HSUPA is used to realize that the Random Access Channel of up E-DCH and E-DCH is the encoding process of E-RUCCH.
6. terminal according to claim 5 is characterized in that, further comprises:
Common up transmission subsystem is used to realize the encoding process and the emission of general service.
7. terminal according to claim 5 is characterized in that, further comprises:
The joint-detection subsystem is used for baseband signal is carried out chip-level descrambling and despreading processing, and the signal after the joint-detection is offered described down channel decoding subsystem.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810179136A CN101742673A (en) | 2008-11-25 | 2008-11-25 | Implementation method and terminal for TD-SCDMA_HSUPA (time division-synchronization code division multiple access high speed uplink packet access) |
| PCT/CN2009/075106 WO2010060372A1 (en) | 2008-11-25 | 2009-11-24 | Implementation method and terminal for td_scdma_hsupa |
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| CN200810179136A CN101742673A (en) | 2008-11-25 | 2008-11-25 | Implementation method and terminal for TD-SCDMA_HSUPA (time division-synchronization code division multiple access high speed uplink packet access) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110995750A (en) * | 2019-12-18 | 2020-04-10 | 展讯通信（上海）有限公司 | Terminal device |
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| US7693110B2 (en) * | 2004-09-16 | 2010-04-06 | Motorola, Inc. | System and method for downlink signaling for high speed uplink packet access |
| CN101383993B (en) * | 2007-09-06 | 2011-09-28 | 电信科学技术研究院 | Resource scheduling method, system and base station |
| CN101420756A (en) * | 2007-10-22 | 2009-04-29 | 大唐移动通信设备有限公司 | Step-out determining method and device |
| EP2245800B1 (en) * | 2008-02-12 | 2012-02-08 | Telefonaktiebolaget LM Ericsson (publ) | Allocation and priority handling of uplink and downlink resources |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110995750A (en) * | 2019-12-18 | 2020-04-10 | 展讯通信（上海）有限公司 | Terminal device |
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Application publication date: 20100616 |