CN101262279B - An uplink dispatching access control method for time division synchronization code division multi-address access system - Google Patents
An uplink dispatching access control method for time division synchronization code division multi-address access system Download PDFInfo
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Abstract
The invention discloses a control method for uplink dispatching and accessing of a CDMA access system with synchronous time division. The method comprises the steps as follows: an uplink enhanced MAC layer control entity on a UE side configures the trans-format and ASC which are enhanced and accessed by the uplink; random access type is configured into uplink enhanced random access, and uplink dispatching signals are configured; the uplink enhanced MAC layer control entity on the UE side sends a random access request to a physical layer, and the signals are sent to the physical layer; the physical layer on the UE side provides a trans-format according to the random access request received; the ASC: the random access type selects corresponding uplink synchronized code and PRACH physical resources of a physical random access signal channel to initiate random access process, and the uplink dispatching signals are sent out. The method of the invention defines the parameter requiring to be configured in the random access process controlled by the uplink dispatching access and a configuration method thereof, and solves the control problem of uplink dispatching access in the uplink enhancing technology of a TD-SCDMA system.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of uplink scheduling connection control method of TD-SCDMA system.
Background technology
At the TD-SCDMA of one of 3-G (Generation Three mobile communication system) standard (TimeDivision-Synchronous Multiple Access; The TD SDMA access) in the up enhancement techniques of wireless telecommunication system, up enhancing service resources adopts the mode of scheduling to distribute by Node B.If the needs that user equipment (UE) (User Equipment) has upstream data to send through up enhancing mode, UE need at first carry out the uplink scheduling application, waits for then after Node B authorizes up enhancing service resources and sending.Uplink scheduling inserts and is meant that UE under the situation of the up enhancing service resources of not authorizing, sends the process of uplink scheduling application to Node B.In the TD-SCDMA system, the general mode that inserts at random that adopts of this application process realizes.
In the TD-SCDMA system, random access procedure is controlled completion jointly by MAC (medium access control) layer and physical layer.After introducing up enhancement techniques; The MAC layer has two kinds of different entities controlling the different requests of access at random; The wherein request of access at random of MAC-c/sh entity (public/shared MAC layer controlled entity) control transmission channel RACH (RACH) triggering, and MAC-e entity (up enhancing MAC layer controlled entity) is being controlled the request of access at random that uplink scheduling inserts.
In the TD-SCDMA system, random access procedure further comprises the process of two priorities, i.e. uplink synchronous process and data transmission procedure.In the uplink synchronous process; The selection of uplink synchronous code (uplink synchronous code also is described to signature (signature)), transmission and receiving course have embodied a concentrated reflection of uplink common channel resource in the random access procedure---the shared method of salary distribution of competition of Physical Random Access Channel (PRACH).Therefore,, can dispose different uplink synchronous codes, but share identical PRACH physical channel resources and configuration thereof to above-mentioned two kinds of different requests of access at random.MAC needs to insert request type at random and sends to physical layer when initiating to insert request at random.
In random access procedure, for inserting at random of different business and kind asks to provide different priority.In the TD-SCDMA system, access priority is presented as the access service grade at random, i.e. ASC (Access Service Class).In addition, in the TD-SCDMA system, can dispose multiple PRACH physical channel resources simultaneously, comprising Transmission Time Interval with different attribute.In the random access procedure of TD-SCDMA system, ASC and transformat are selected control by the MAC layer entity usually.The MAC entity sends to physical layer with ASC and the transformat selected when initiating to insert request at random to physical layer and triggering the physical layer random access procedure.Physical layer is according to ASC and transformat then, and the corresponding PRACH physical channel resources of random access resource selection of configuration is sent random access information.
In the up enhancement techniques of TD-SCDMA system; The physical channel that the random access procedure that inserts for uplink scheduling defines is that up enhanced random inserts ascending control channel (E-RUCCH); This E-RUCCH shares identical physical channel resources and configuration thereof with the PRACH physical channel that inserts definition at random for RACH before this, wherein configuration comprise radio network controller (RNC) (Radio NetworkController) configuration pass through that cell system information broadcasts to UE and through sending to the information of Node B among the NBAP.But, inserting at random with RACH and to compare, uplink scheduling inserts has access to a lot of different places at random.Therefore, in order to realize that the random access procedure that uplink scheduling inserts is controlled, and share identical PRACH physical channel resources and configuration thereof with the RACH random access procedure, the control method that need provide a kind of uplink scheduling to insert.
Summary of the invention
The technical problem that the present invention will solve just provides a kind of uplink scheduling connection control method of TD-SCDMA system, realizes the random access procedure that uplink scheduling inserts is controlled.
In order to solve the problems of the technologies described above, the present invention provides a kind of uplink scheduling connection control method of TD-SCDMA system, comprising:
(1) transformat and the access service grade ASC of up this up enhancing access of enhancing media access control MAC layer controlled entity configuration of user equipment (UE) side; And access style is configured to up enhanced random access, collocating uplink schedule information at random;
(2) the up enhancing media access control MAC layer controlled entity of user equipment (UE) side initiates to insert at random request to physical layer, with above-mentioned transformat, ASC, access style, uplink scheduling information are transmitted to physical layer at random;
(3) physical layer of UE side inserts the transformat that request provides at random according to what receive, ASC, and access style selects corresponding uplink synchronous code and Physical Random Access Channel PRACH physical resource to initiate random access procedure at random, the transmission uplink scheduling information.
Further, in the said step (1), the configuration of said transformat comprises the steps:
(a) passing through in the information that cell system information broadcasts to UE in radio network controller (RNC) configuration; In multiple transformat with different Transmission Time Intervals, configuration also wherein a kind of transformat of indication and Transmission Time Interval thereof is used for E-RUCCH and inserts at random;
(b) the up enhancing of UE side MAC layer controlled entity selected this transformat and Transmission Time Interval thereof according to system information.
Further, in the said step (1), the configuration of said transformat comprises:
The up enhancing of UE side MAC layer controlled entity chosen wherein a kind of transformat or Transmission Time Interval and a kind of transformat thereof according to RACH RACH transformat number or Transmission Time Interval number in UE sign and the system information.
Further, said UE sign comprises international mobile subscriber identifier IMSI, UMTS Radio Network Temporary Identifier U-RNTI, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI.
Further, in the said step (1), the configuration of said transformat comprises:
The up enhancing of UE side MAC layer controlled entity multiple from system information has in the transformat of different Transmission Time Intervals chooses a kind of transformat.
Further, the selection mode of the up enhancing of said UE side MAC layer controlled entity is: select at random, select, select according to Transmission Time Interval according to priority, or the combination of above-mentioned several method.
Further, in the said step (1), the configuration of said ASC comprises:
The up enhancing MAC layer controlled entity of UE side be according to the ASC of this cell configuration, and this up enhancing when inserting request related service logical channels priority confirm that this up enhancing inserts the ASC that asks.
Further, the up enhancing MAC layer controlled entity of said UE side is the minimum ASC of priority of this cell configuration according to the ASC of this cell configuration.
Further, in the highest these two priority of MAC priority of logical channels MLP of the MLP medium priority of the minimum ASC of all available ASC medium priorities and all logic channels, select a high relatively priority to insert the ASC of request as up enhancing.
Further, in the said step (1), the configuration of said ASC comprises:
The up enhancing of UE side MAC layer controlled entity directly uses this up enhancing of being confirmed by the radio resource control RRC layer to insert the ASC of request, and this ASC is confirmed through system information or RRC message by rrc layer.
The parameter and the collocation method thereof that need configuration in this method the is clear and definite random access procedure of uplink scheduling access control; And provide physical layer to carry out the method for random access procedure control, thereby solved the control problem that the uplink scheduling in the up enhancement techniques of TD-SCDMA system inserts according to these parameters.
Description of drawings
Fig. 1 is the flow chart of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is elaborated.
As shown in Figure 1, present embodiment comprises the steps.Here just for convenience of description, step 1 wherein, the execution sequence of step 2 and step 3 might be put upside down, and this is the strict sequencing on the express time not in proper order.
Step 1, the transformat that up this up enhancing of enhancing MAC layer controlled entity configuration of UE side inserts, wherein main configuring transmission time interval;
In the up enhancement techniques of TD-SCDMA system, the random access procedure that uplink scheduling inserts is shared identical PRACH physical channel resources and configuration thereof with the RACH random access procedure.Wherein, Passing through in the information that cell system information broadcasts to UE of RNC configuration; The configuration of PRACH physical channel resources is that the transformat according to the RACH transmission channel is configured, and can dispose the RACH and the corresponding PRACH physical channel resources of multiple transformat simultaneously.Therefore, in the RACH random access procedure, the up enhancing of UE side MAC layer controlled entity need be according to configuration information and the business datum that will pass through the RACH emission; Select suitable transformat; Comprising Transmission Time Interval (TTI), transmission block size, transmission block number etc.But in the access at random of uplink scheduling access, promptly in the E-RUCCH random access procedure, owing to there is not business datum to need to send; The information that needs to send is that form is fixed, the schedule information that content maybe be different, therefore; Insert at random for E-RUCCH, do not dispose corresponding transformat.But; In order to share identical PRACH physical channel resources and configuration thereof with the RACH random access procedure in physical layer; And data transmission procedure, the up enhancing of UE side MAC layer controlled entity must its transformat of indication when physical layer transmission E-RUCCH inserts request at random.Because in the physical layer random access procedure; Relevant with control mainly is the Transmission Time Interval in the transformat, therefore, inserts at random for E-RUCCH; Transmission Time Interval when the up enhancing of UE side MAC layer controlled entity really need be selected to confirm; Then according to Transmission Time Interval and transformat of system information selection of configuration, perhaps when selecting transformat, be main chosen content with wherein Transmission Time Interval.Insert at random in the solicited message at the E-RUCCH that sends to physical layer, transmission block size and transmission block number in the transformat do not have practical significance, and physical layer can be ignored.
But,, can't select transformat and Transmission Time Interval thereof according to transmission block size and number because E-RUCCH inserts the transmission block that does not have business datum at random.For the situation of the transformat that disposes multiple Transmission Time Interval, transformat and Transmission Time Interval thereof when the up enhancing of UE side MAC layer controlled entity can select E-RUCCH to insert at random according to one of following method:
Method 1: passing through in the information that cell system information broadcasts to UE of RNC configuration, in multiple transformat with different Transmission Time Intervals, configuration also wherein a kind of transformat of indication and Transmission Time Interval thereof is used for E-RUCCH and inserts at random.The up enhancing of UE side MAC layer controlled entity can be selected this transformat and Transmission Time Interval thereof to carry out E-RUCCH according to system information to insert at random then.
Method 2: according to RACH transformat number or Transmission Time Interval number in UE sign and the system information, choose wherein a kind of transformat or Transmission Time Interval and a kind of transformat thereof by the up enhancing of UE side MAC layer controlled entity.UE sign wherein can comprise IMSI (International Mobile Subscriber Identifier; International mobile subscriber identifier); U-RNTI (UMTS Radio Network Temporary Identifier), C-RNTI (Cell Radio Network Temporary Identifier/Identity, Cell-RNTI) etc.As N transformat is numbered 0,1...N-1 chooses transformat with the result of the IMSI mod N (IMSI gets remainder divided by N) of UE as numbering.
Method 3: by the up enhancing of UE side MAC layer controlled entity voluntarily multiple from system information have in the transformat of different Transmission Time Intervals and choose a kind of transformat.This method further can comprise: select at random; Select according to priority; Select according to Transmission Time Interval; Or the combination of this several method.As select the highest transformat of priority or select the shortest transformat of Transmission Time Interval.
Step 2, this up enhancing of the up enhancing of UE side MAC layer controlled entity configuration inserts the ASC of request.This ASC can be by the minimum ASC of the up enhancing of UE side MAC layer controlled entity according to this cell configuration; And this up enhancing when inserting request related service logical channels priority confirm; Also can confirm through system information or RRC message, directly use by the up enhancing of UE side MAC layer controlled entity by RRC (Radio Resource control) layer.
In the TD-SCDMA system, in each system information of subdistricts, all disposed all available ASC, the priority that wherein the ASC value is more little is high more.And in the processes such as radio bearer foundation/reprovision of RRC (Radio Resource control) message, every service logical channels all can dispose a MAC priority of logical channels (MLP).And the uplink scheduling access is professional relevant with certain, and can comprise a plurality of logic channels, and therefore, the up enhancing of UE side MAC layer controlled entity can select to confirm the ASC of up enhancings access request according to these two kinds of configuration informations.For example; If two kinds of priority configuration informations have comparativity, then in the highest these two priority of MLP of the MLP medium priority of the minimum ASC of all available ASC medium priorities and all logic channels, select a higher relatively priority to insert the ASC of request as up enhancing.The ASC that rrc layer uses in the time of can also inserting request for the UE collocating uplink strengthens through system information or RRC message, the up enhancing of UE side MAC layer controlled entity directly uses this ASC.
Step 3, the up enhancing MAC layer controlled entity of UE side access style at random are configured to up enhanced random access, collocating uplink schedule information.
In the TD-SCDMA system, to above-mentioned two kinds of different requests of access at random, disposed different uplink synchronous codes, but shared identical PRACH physical channel resources and configuration thereof.Therefore, MAC needs to insert request type at random and sends to physical layer when initiating to insert request at random.
In sending to the request message of access at random of physical layer, except needs comprise above-mentioned transformat, ASC inserts outside the request type at random, will comprise the uplink scheduling information (SI) that will be sent out in the E-RUCCH random access procedure certainly.This uplink scheduling information is by the up enhancing MAC layer controlled entity configuration of UE side.
Step 4, the up enhancing MAC layer controlled entity of UE side initiates to insert at random request to physical layer.Comprise step 1 in the request message, the selection in 2 and 3 is confirmed and the content of configuration.
Step 5, the physical layer of UE side be according to transformat, ASC, and access style selects corresponding uplink synchronous code and PRACH physical resource to initiate random access procedure at random, sends uplink scheduling information.
After the physics of UE side receives and inserts request at random, according to the transformat in the request message, ASC, access style, and the configuration information in the system information at random.Select corresponding uplink synchronous code and PRACH physical resource to initiate random access procedure.The random access procedure that TD-SCDMA system in this random access procedure and 3GPP (3G (Third Generation) Moblie gpp) standard introduces before the up enhancement techniques is similar.
Configuration information in the system information of using in the MAC layer of above-mentioned UE side and the physical layer procedure all is to give MAC layer and physical layer by configuration after the rrc layer receiving system information of UE side.
Consider the similitude of up enhancement techniques, method of the present invention also goes for the up enhancement techniques of the other system in the existing 3GPP standard, like 3.84Mcps TDD (time division duplex), and 7.68Mcps TDD system.
Claims (10)
1. the uplink scheduling connection control method of a TD-SCDMA system comprises:
(1) transformat and the access service grade ASC of up this up enhancing access of enhancing media access control MAC layer controlled entity configuration of user equipment (UE) side; And access style is configured to up enhanced random access, collocating uplink schedule information at random;
(2) the up enhancing media access control MAC layer controlled entity of user equipment (UE) side initiates to insert at random request to physical layer, with above-mentioned transformat, ASC, access style, uplink scheduling information send to physical layer at random;
(3) transformat, the ASC that provide according to the request that inserts at random that receives of the physical layer of UE side, access style selects corresponding uplink synchronous code and Physical Random Access Channel PRACH physical resource to initiate random access procedure at random, sends uplink scheduling information.
2. method according to claim 1 is characterized in that, in the said step (1), the configuration of said transformat comprises:
(a) passing through in the information that cell system information broadcasts to UE in radio network controller (RNC) configuration; In multiple transformat with different Transmission Time Intervals, configuration also wherein a kind of transformat of indication and Transmission Time Interval thereof is used for up enhanced random and inserts ascending control channel E-RUCCH and insert at random;
(b) the up enhancing of UE side MAC layer controlled entity selected this transformat and Transmission Time Interval thereof according to system information.
3. method according to claim 1 is characterized in that, in the said step (1), the configuration of said transformat comprises:
The up enhancing of UE side MAC layer controlled entity chosen wherein a kind of transformat or Transmission Time Interval and a kind of transformat thereof according to RACH RACH transformat number or Transmission Time Interval number in UE sign and the system information.
4. method according to claim 3 is characterized in that, said UE sign comprises international mobile subscriber identifier IMSI, UMTS Radio Network Temporary Identifier U-RNTI, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI.
5. method according to claim 1 is characterized in that, in the said step (1), the configuration of said transformat comprises:
The up enhancing of UE side MAC layer controlled entity multiple from system information has in the transformat of different Transmission Time Intervals chooses a kind of transformat.
6. method according to claim 5 is characterized in that, the selection mode of the up enhancing of said UE side MAC layer controlled entity is: select at random, select, select according to Transmission Time Interval according to priority, or the combination of above-mentioned several kinds of modes.
7. method according to claim 1 is characterized in that, in the said step (1), the configuration of said ASC comprises:
The up enhancing MAC layer controlled entity of UE side be according to the ASC of this cell configuration, and this up enhancing when inserting request related service logical channels priority confirm that this up enhancing inserts the ASC that asks.
8. method according to claim 7 is characterized in that, the up enhancing MAC layer controlled entity of said UE side is the minimum ASC of this cell configuration priority according to the ASC of this cell configuration.
9. method according to claim 7; It is characterized in that, in the highest these two priority of MAC priority of logical channels MLP of the MLP medium priority of the minimum ASC of all available ASC medium priorities and all logic channels, select a high relatively priority to insert the ASC of request as up enhancing.
10. method according to claim 1 is characterized in that, in the said step (1), the configuration of said ASC comprises:
The up enhancing of UE side MAC layer controlled entity directly uses this up enhancing of being confirmed by the radio resource control RRC layer to insert the ASC of request, and this ASC is confirmed through system information or RRC message by rrc layer.
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| CN2007101304112A CN101262279B (en) | 2007-03-07 | 2007-07-18 | An uplink dispatching access control method for time division synchronization code division multi-address access system |
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| CN2007101304112A CN101262279B (en) | 2007-03-07 | 2007-07-18 | An uplink dispatching access control method for time division synchronization code division multi-address access system |
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| JP (1) | JP5007347B2 (en) |
| KR (1) | KR101056034B1 (en) |
| CN (1) | CN101262279B (en) |
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| CN101909354B (en) * | 2009-06-05 | 2013-11-06 | 电信科学技术研究院 | Method, system and device for judging type of UE |
| CN101990310A (en) | 2009-07-30 | 2011-03-23 | 华为技术有限公司 | Random access method and device thereof |
| CN102111887B (en) * | 2010-02-05 | 2013-05-15 | 电信科学技术研究院 | Method for adjusting physical random access channel (PRACH) resource density and base station |
| CN102378389B (en) * | 2010-08-20 | 2015-09-16 | 中兴通讯股份有限公司 | A kind of cut-in method of Physical Random Access Channel and device |
| CN102137503B (en) * | 2011-03-24 | 2014-08-13 | 中兴通讯股份有限公司 | Up-link control method and system based on layered structure |
| CN102869113B (en) * | 2011-07-06 | 2016-01-27 | 上海贝尔股份有限公司 | The method and apparatus of the physical accidental access in a kind of communication network |
| CN107155217A (en) * | 2016-03-04 | 2017-09-12 | 株式会社Ntt都科摩 | Data transmission method for uplink and user equipment |
| CN108293250B (en) | 2016-03-18 | 2020-11-03 | Oppo广东移动通信有限公司 | Communication method, terminal equipment and network equipment |
| CN112770393B (en) * | 2019-10-21 | 2023-05-30 | 大唐移动通信设备有限公司 | Channel selection and configuration method and device |
| CN114245470B (en) * | 2021-12-13 | 2024-03-29 | 小唐科技(上海)股份有限公司 | Method for improving RACH access speed and wireless device |
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| CN1918822A (en) * | 2004-02-14 | 2007-02-21 | 三星电子株式会社 | Method of transmitting scheduling information on an enhanced uplink dedicated channel in a mobile communication system |
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| JP3801983B2 (en) * | 2000-06-02 | 2006-07-26 | サムスン エレクトロニクス カンパニー リミテッド | Method for selecting a random access channel in a code division multiple access mobile communication system |
| US7580388B2 (en) * | 2004-06-01 | 2009-08-25 | Lg Electronics Inc. | Method and apparatus for providing enhanced messages on common control channel in wireless communication system |
| KR20060077521A (en) | 2004-12-30 | 2006-07-05 | 삼성전자주식회사 | Method and apparatus for signaling control information of up-link packet data service in mobile telecommunication system |
| US7408895B2 (en) | 2005-04-20 | 2008-08-05 | Interdigital Technology Corporation | Method and apparatus for scheduling transmissions via an enhanced dedicated channel |
| US20070064665A1 (en) * | 2005-08-23 | 2007-03-22 | Interdigital Technology Corporation | Method and apparatus for accessing an uplink random access channel in a single carrier frequency division multiple access system |
| US7889709B2 (en) * | 2005-08-23 | 2011-02-15 | Sony Corporation | Distinguishing between data packets sent over the same set of channels |
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| CN1918822A (en) * | 2004-02-14 | 2007-02-21 | 三星电子株式会社 | Method of transmitting scheduling information on an enhanced uplink dedicated channel in a mobile communication system |
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| 3GPP.《3rd Generation Partnership Project * |
| Medium Access Control (MAC) protocol specification(Release 7)》.《3GPP TS 25.321 v7.3.0》.2006,第8,70-72页. * |
| Technical Specification Group Radio Access Network * |
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| KR20090129458A (en) | 2009-12-16 |
| JP5007347B2 (en) | 2012-08-22 |
| KR101056034B1 (en) | 2011-08-11 |
| JP2010520679A (en) | 2010-06-10 |
| WO2008106869A1 (en) | 2008-09-12 |
| CN101262279A (en) | 2008-09-10 |
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