CN101399605B - VoIP bearing method in time division synchronous CDMA access system - Google Patents
VoIP bearing method in time division synchronous CDMA access system Download PDFInfo
- Publication number
- CN101399605B CN101399605B CN200710154693XA CN200710154693A CN101399605B CN 101399605 B CN101399605 B CN 101399605B CN 200710154693X A CN200710154693X A CN 200710154693XA CN 200710154693 A CN200710154693 A CN 200710154693A CN 101399605 B CN101399605 B CN 101399605B
- Authority
- CN
- China
- Prior art keywords
- user terminal
- voip
- resource
- rdi
- scheduling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention provides a method for carrying an internet phone in a time division-synchronous code division multiple access system. The method comprises the following steps: (a) when an internet phone VoIP business is requested at a user terminal, a periodic uplink resource is arranged for the user terminal by a network side, and the user terminal uses the resource to upload new VoIP data; (b) after a base station receives the VoIP data and detects that the VoIP data has errors, non-acknowledge information (NACK) is fed back and authorization is retransmitted to the user terminal to allocate scheduling resources for the user terminal; and (c) after the user terminal receives the NACK information, and the VoIP data is retransmitted on the scheduling resources.
Description
Technical field
The present invention relates to the synchronous radio communication system, especially TD-SCDMA system, the i.e. method of carrying VoIP (networking telephone) in the TD-SCDMA system.
Background technology
Can greatly promote user's transmission rate with the technology of the HSDPA/HSUPA (access of high speed downlink packet access/high speed uplink packet) that is grouped into guiding, but these two kinds of technology exist that potential transmission is interrupted, frequent connection termination and the problem that QoS (service quality) mechanism that can not guarantee such as reconnects.And that Packet Service often needs is online for a long time, and data volume possibly be an intermittent bursts property.Therefore, how in wireless telecommunication system, supporting the user to keep dividing into groups continuously to connect (CPC, Continuous Packet Connectivity) is a urgent problem.Wherein the up carrying about VoIP also is a key issue in the CPC technology.
Summary of the invention
The technical problem that the present invention will solve provides the method for carrying VoIP in a kind of TD-SCDMA system.
In order to solve the problems of the technologies described above, the invention provides the method for bearer network phone in a kind of TD-SCDMA system, comprise following steps:
When (a) user terminal need carry out networking telephone VoIP business, network side was the ascending resource of said user terminal configuration cycle property, and said user terminal uses said resource to upload new VoIP data;
(b) after said VoIP data are received in the base station, when detecting said VoIP data and makeing mistakes, feed back non-acknowledge message NACK and authorize to said user terminal, be said user terminal allocation schedule resource with sending to retransmit;
(c) after said user terminal is received said NACK message, on said scheduling resource, retransmit said VoIP data.
Further, said method also can have following characteristics, and in the said step (a), said network side is that said user terminal distributes non-scheduling resource.
Further; Said method also can have following characteristics; In the said step (c); When said user terminal retransmitted said VoIP data on scheduling resource, cyclic redundancy check (CRC) adopted the mode of polarity upset, and the CRC that on non-scheduling resource, sends new VoIP data also adopts the mode of polarity upset.
Further; Said method also can have following characteristics, in the said step (c), when said user terminal retransmits said VoIP data on scheduling resource; The identification field of mixing automatic repeat requests HARQ process is expanded; Adopt 3 virtual HARQ processes of bit, the mode of mould 4 is adopted in the base station, discerns the HARQ process of said user terminal.
Further, said method also can have following characteristics, in the said step (c); When said user terminal retransmits said VoIP data on scheduling resource; Part in the transmission block size TBS field adopts special identifier, and the HARQ process of said user terminal is discerned according to this special identifier in the base station.
Further, said method also can have following characteristics, and said special identifier refers in the TBS field that except that being used to identify 2 bits of HARQ process, all the other 4 bits are complete 1 or complete 0.
Further; Said method also can have following characteristics, increases new resource continuous demonstrative definition E-RDI, indicates the interval of dispatching cycle; The duration of E-RDI was confirmed by the professional duration of VoIP; In the said step (a), said network side is said user's allocation schedule resource, configuration E-RDI.
Further, said method also can have following characteristics, and 3 bits of E-RDI described in the said step (a) identify 8 kinds of different successive intervals dispatching cycle respectively.
Further, said method also can have following characteristics, and after the end VoIP business, network side reconfigures resource continuous indication RDI parameter, stops said E-RDI, gets into existing two kinds of RDI patterns.
Further, said method also can have following characteristics, and in the said step (c), said user terminal uses when uploading said VoIP data identical HARQ process to send data retransmission on scheduling resource.
The invention provides the method that VoIP carries in a kind of TD-SCDMA system.The present invention is according to the business characteristic of VoIP, and the cycle send mode of non-scheduling method of up employing or scheduling method for uplink retransmission, adopts scheduling method to carry out.Adopt dual mode to guarantee that the cycle of VoIP sends and retransmit aperiodic, effectively supported the VoIP transmission, reduced resource overhead, and compatible existing protocol.
Description of drawings
Fig. 1 is the timing relationship (mode 1) between the up carrying re-transmission of VoIP and the new biography in the TD-SCDMA of the present invention system;
Fig. 2 is the timing relationship (mode 2) between the up carrying re-transmission of VoIP and the new biography in the TD-SCDMA of the present invention system.
Embodiment
In the HSDPA of TD-SCDMA system technology; The new wireless physical channel resource of introducing comprises: high-speed physical downlink is shared physical channel HS-PDSCH (High Speed Physical Downlink Shared Channel), high-speed shared control channel HS-SCCH (Shared Control Channel for HS-DSCH) and high-speed shared information channel HS-SICH (Shared Information Channel for HS-DSCH).Wherein, the downlink business of VoIP can adopt the mode of periodic scheduling or scheduling aperiodic to carry through HS-PDSCH.And for the uplink service of VoIP since with downlink business be symmetrical, therefore, also can adopt the cycle send mode in periodic non-scheduling method or the scheduling method, for uplink retransmission, then can adopt scheduling method to carry out.
The present invention proposes the method for carrying VoIP in a kind of TD-SCDMA system, comprising:
Under the CELL_DCH state; Network side distributes HSDPA and HSUPA resource for UE simultaneously; Comprising distribute non-scheduling E-PUCH (enhanced uplink physical channel) channel resource for UE; The cycle send mode of non-scheduling method of up employing or scheduling method for uplink retransmission, adopts scheduling method to carry out.Comprising to scheduling, the identification of the HARQ process of non-scheduling.For the up carrying of VoIP, can adopt following dual mode:
Mode 1:
The non-scheduling method of the up new biography The data of VoIP retransmits and adopts scheduling method.RNC (radio network controller) authorizes UE to adopt the non-scheduling method of fixed cycle to pass new data, after Node B (base station) receives UE new biography data according to the demand of UE VoIP; CRC (CRC) detects and finds that the new biography data are wrong, then in timing range, feed back NACK (non-acknowledge message); Send re-transmission through AGCH (absolute grant channel) and authorize, after UE receives and retransmits mandate, in timing range; Through the scheduling resource of authorizing, send data retransmission.
The enforcement of mode 1 of the present invention is described through an embodiment below, specific as follows:
Step 1:RNC if UE need carry out the VoIP business, then is the non-scheduling method resource of UE collocating uplink fixed cycle according to the UE service needed, and UE uses the new data of this resource transmission VoIP;
After step 2:Node B receives the VoIP data of UE transmission; The CRC testing result is wrong; The VoIP data that are the UE transmission are made mistakes, and then in timing range, feed back NACK and pass through AGCH (Access Grant Channel; The access permission channel) send re-transmission and authorize, the configuration schedules resource is given said UE;
Step 3:UE receives NACK, accepts the re-transmission mandate of AGCH, on the physical resource of authorizing, sends data retransmission;
When step 4:UE sends the data retransmission of non-scheduling on scheduling resource; The HARQ process adopts following three kinds of methods or its combination to distinguish; Be used for Node B and distinguish the data retransmission of UE in the data of the dispatching services of scheduling resource normal uploading and the non-scheduling of on scheduling resource, sending, specific as follows:
When method 1:UE sent the data retransmission of non-scheduling on scheduling resource, CRC adopted the mode of polarity upset, if adopt this mode, the CRC of the new data that VoIP sends out on non-scheduling method also adopts the mode of polarity upset;
Because the scheduling of UPA (access of HSUPA high speed uplink packet), non-scheduling respectively takies 4 HARQ (mixing automatic repeat requests) process, and label all is 1～4; Therefore, if VoIP passes the data that retransmit through scheduling method, may obscure with the process of normal consistency transmission; Obscure for fear of above-mentioned process, pass the data of the re-transmission of non-scheduling for scheduling method, its HARQ process is consistent with the HARQ process of non-scheduling method; Promptly adopt the HARQ process of the corresponding data that passed of non-scheduling method, in order to distinguish with the HARQ process of scheduling, CRC adopts the mode of polarity upset; If the data of normal scheduling method; CRC adopts normal polarity, if scheduling method carries the data retransmission of non-scheduling, then CRC adopts the polarity of upset; If adopt this mode, the CRC of the new data that VoIP sends out on non-scheduling method also will adopt the mode of polarity upset.
When method 2:UE sent the data retransmission of non-scheduling on scheduling resource, the field of HARQ process identification (PID) was expanded, and adopted 3 virtual HARQ processes of bit, and Node B side adopts the mode of mould 4, and combined to retransmit mandate regularly, obtained real HARQ process;
For the identification of HARQ process, can also adopt the mode of virtual label, 10 bits are arranged among the UCCH (control channel), be respectively 6 bit TBS, indicating range is 64; Remaining 2 bits are the indication of HARQ process and 2 bit RSN number (transmission sequence number); Under the situation of VoIP, because VoIP only supports 4 kinds of TBS (Transport Block Size, transmission block size); Need 2 bit indications to get final product so; Remaining can give HARQ process usefulness, and 2 bits of therefore original expression HARQ process can expand to 3 bits, the process that sign retransmits.After Node B receives the HARQ process, adopt the mode of mould 4, obtain the HARQ process number of the data retransmission of corresponding non-scheduling.
When method 3:UE sent the data retransmission of non-scheduling on scheduling resource, the part in the TBS field adopted special identifier, and Node B is according to this special identifier and retransmit mandate regularly, the HARQ process of identification UE.
Identification for the HARQ process; Can also adopt the mode of special label; Because VoIP only supports 4 kinds of TBS, 6 bits of therefore original expression TBS only need 2 bits, remain 4 bits and identify with special sequence; Be used for Node B identification scheduling channel and transmit the data that non-scheduling retransmits, can be 4 complete 1 or complete 0 such as remaining 4 bits.
Above-mentioned three kinds of methods can independently be used, and also can make up use.
Mode 2:
The VoIP upstream data is new biography or data retransmission no matter, all on scheduling method, carries, because the business of VoIP is continuous, the cycle, therefore, existing scheduling method need be made amendment, and introduces new RDI (resource continuous indication) and defines, be i.e. E-RDI.RNC disposes 3 kinds of RDI patterns, pattern 1: not to UE configuration RDI; Pattern 2: dispose existing RDI to UE, the RDI definition is identical with existing protocol; Mode 3: give the new RDI of UE configuration of VoIP, i.e. E-RDI, its definition is different with present agreement; Having defined continuous mandate of scheduling among the existing RDI is limited number, and like 8 TTI, and its effective value of E-RDI is " TTI spacing "; Promptly indicate the interval of dispatching cycle, the duration was confirmed by the professional duration of VoIP, when VoIP finishes; RNC carries out the resource reprovision; The configuration of stop mode 3 described E-RDI, promptly R-EDI can be the TTI that the end with VoIP finishes, and gap periods is transformable.
For re-transmission, then identical with existing RDI mode, after Node B judges crc error, send NACK, send out to retransmit through AGCH and authorize, UE sends data retransmission in the gap periods of RDI.This mode can not bring process to obscure.
Step 1: increase new RDI definition, i.e. E-RDI, 3 bits are used to identify RDI in AGCH authorizes, and these 3 bits can identify 8 kinds of different successive mandates respectively at interval in the present invention, and promptly 8 kinds of continuous dispatching cycles are at interval.
Step 2: carry out the UE of VoIP for needs, through RNC configuration E-RDI, wherein, the duration of E-RDI is by the duration decision of VoIP;
When step 3:Node B detects the VoIP upstream data and makes mistakes, in timing range, feedback NACK, and send to retransmit through AGCH and authorize, be said user terminal allocation schedule resource;
Step 5:UE receives the re-transmission mandate that NACK and AGCH carry in timing range, at the scheduling resource that is distributed, promptly send data retransmission with identical process on the authorization channel;
Step 6: after finishing the VoIP business, RNC reconfigures the RDI parameter, stops E-RDI, gets into existing RDI pattern, i.e. pattern 1 and pattern 2 described RDI patterns.
For the uplink retransmission of VoIP, adopt dispatching services to carry, retransmit and new biography timing relationship such as Fig. 1 and Fig. 2, be respectively the re-transmission of mode 1 and mode 2, the new biography timing relation figure.Defined t1 among the figure respectively, t2, t3, wherein t1 is the time interval of VoIP new biography data, and t2 and t3 are data retransmission and time interval between the new biography data next time, and re-transmission can be before new biography next time, also can be after new biography next time.
Claims (10)
1. the method for bearer network phone in the TD-SCDMA system comprises following steps:
When (a) user terminal need carry out networking telephone VoIP business, network side was the ascending resource of said user terminal configuration cycle property, and said user terminal uses said resource to upload new VoIP data;
(b) after said VoIP data are received in the base station, when detecting said VoIP data and makeing mistakes, feed back non-acknowledge message NACK and authorize to said user terminal, be said user terminal allocation schedule resource with sending to retransmit;
(c) after said user terminal is received said NACK message, on said scheduling resource, retransmit said VoIP data.
2. the method for claim 1 is characterized in that, in the said step (a), said network side is that said user terminal distributes non-scheduling resource.
3. method as claimed in claim 2; It is characterized in that; In the said step (c); When said user terminal retransmitted said VoIP data on scheduling resource, cyclic redundancy check (CRC) adopted the mode of polarity upset, and the CRC that on non-scheduling resource, sends new VoIP data also adopts the mode of polarity upset.
4. method as claimed in claim 2; It is characterized in that, in the said step (c), when said user terminal retransmits said VoIP data on scheduling resource; The identification field of mixing automatic repeat requests HARQ process is expanded; Adopt 3 virtual HARQ processes of bit, the mode of mould 4 is adopted in the base station, discerns the HARQ process of said user terminal.
5. method as claimed in claim 2 is characterized in that, in the said step (c); When said user terminal retransmits said VoIP data on scheduling resource; Part in the transmission block size TBS field adopts special identifier, and the HARQ process of said user terminal is discerned according to this special identifier in the base station.
6. method as claimed in claim 5 is characterized in that, said special identifier refers in the TBS field that except that being used to identify 2 bits of HARQ process, all the other 4 bits are complete 1 or complete 0.
7. the method for claim 1; It is characterized in that, increase new resource continuous demonstrative definition E-RDI, indicate the interval of dispatching cycle; The duration of E-RDI was confirmed by the professional duration of VoIP; In the said step (a), said network side is said user's allocation schedule resource, configuration E-RDI.
8. method as claimed in claim 7 is characterized in that, 3 bits of E-RDI described in the said step (a) identify 8 kinds of different successive intervals dispatching cycle respectively.
9. method as claimed in claim 7 is characterized in that, after the end VoIP business, network side reconfigures resource continuous indication RDI parameter, stops said E-RDI, gets into existing RDI pattern.
10. method as claimed in claim 7 is characterized in that, in the said step (c), said user terminal uses when uploading said VoIP data identical HARQ process to send data retransmission on scheduling resource.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710154693XA CN101399605B (en) | 2007-09-25 | 2007-09-25 | VoIP bearing method in time division synchronous CDMA access system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710154693XA CN101399605B (en) | 2007-09-25 | 2007-09-25 | VoIP bearing method in time division synchronous CDMA access system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101399605A CN101399605A (en) | 2009-04-01 |
| CN101399605B true CN101399605B (en) | 2012-07-18 |
Family
ID=40517897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710154693XA Expired - Fee Related CN101399605B (en) | 2007-09-25 | 2007-09-25 | VoIP bearing method in time division synchronous CDMA access system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101399605B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867937B (en) * | 2009-04-14 | 2014-08-13 | 中兴通讯股份有限公司 | Realizing method of hybrid automatic repeat request based on constant dispatching |
| CN101895927B (en) * | 2009-05-22 | 2014-11-05 | 上海中兴软件有限责任公司 | Method for implementing constant dispatching |
| CN103368706A (en) * | 2012-03-26 | 2013-10-23 | 中兴通讯股份有限公司 | Transmission method, device and system for hybrid automatic repeat request |
| CN108574559B (en) * | 2017-03-13 | 2021-03-30 | 电信科学技术研究院 | Transmission method and device |
| CN112468266B (en) * | 2019-09-09 | 2023-06-27 | 中兴通讯股份有限公司 | Base station virtual HARQ (hybrid automatic repeat request) process scheduling method and device and base station |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1870809A (en) * | 2005-09-02 | 2006-11-29 | 华为技术有限公司 | Dispatching method for high speed data transmission in mobile communication system |
| CN1925460A (en) * | 2006-09-21 | 2007-03-07 | 电子科技大学 | Group dispatching and channel distributing method for HSDPA system |
-
2007
- 2007-09-25 CN CN200710154693XA patent/CN101399605B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1870809A (en) * | 2005-09-02 | 2006-11-29 | 华为技术有限公司 | Dispatching method for high speed data transmission in mobile communication system |
| CN1925460A (en) * | 2006-09-21 | 2007-03-07 | 电子科技大学 | Group dispatching and channel distributing method for HSDPA system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101399605A (en) | 2009-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2501193B1 (en) | Base station for downlink signaling for high speed uplink packet access | |
| EP2685772B1 (en) | Method, device and system for data transmission | |
| TWI479922B (en) | Method and system for providing control information for supporting high speed downlink and uplink | |
| US9118476B2 (en) | Transmission control method | |
| CN101841398B (en) | A kind of uplink control signaling transmission method and subscriber equipment | |
| CN110536464A (en) | A kind of transmission method, device, communication node and medium | |
| US20100014467A1 (en) | Operating method of a user terminal supporting high speed downlink packet access | |
| CN101400127B (en) | Method and system implementing scheduling measurement | |
| CN101867467B (en) | Method and device for feeding back hybrid automatic repeat request (HARQ) acknowledgement message in carrier aggregation system | |
| WO2013083043A1 (en) | Resource scheduling method and device | |
| CN104995980A (en) | Terminal device, base station device, communications method, and integrated circuit | |
| CN101932111B (en) | Method and system for resource scheduling between enhanced base stations | |
| CN104995979A (en) | Terminal device, base station device, communication method, and integrated circuit | |
| CN101399651A (en) | Method, apparatus and system for service data transmission in HSDPA | |
| CN102892084A (en) | Method and device for processing trunking services, base station and user equipment (UE) | |
| CN101568153B (en) | Method and device for transmitting small packet services in real time | |
| CN101083614A (en) | Method for triggering scheduling information report in enhanced dedicated channel and user equipment | |
| CN101801025B (en) | Method and equipment for confirming scheduling resource release | |
| CN102355334A (en) | Method for data transmission in semi-persistent scheduling mode and user equipment | |
| CN101399605B (en) | VoIP bearing method in time division synchronous CDMA access system | |
| CN101137098A (en) | Uplink real-time packet service transmission method | |
| CN101442381B (en) | Method for transmitting and receiving business, relevant apparatus and system | |
| CN101801098A (en) | Method and equipment for confirming scheduling resource release | |
| CN101399645A (en) | ACK/NACK scheduling method and scheduling device for LTE-TDD system | |
| CN104243109A (en) | Uplink data mixed automatic retransmission request information indication method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20160925 |