CN101272180B - Indication method for ascending synchronous establishing command in TD-SCDMA system - Google Patents
Indication method for ascending synchronous establishing command in TD-SCDMA system Download PDFInfo
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- CN101272180B CN101272180B CN2008101064575A CN200810106457A CN101272180B CN 101272180 B CN101272180 B CN 101272180B CN 2008101064575 A CN2008101064575 A CN 2008101064575A CN 200810106457 A CN200810106457 A CN 200810106457A CN 101272180 B CN101272180 B CN 101272180B
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- uplink synchronous
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Abstract
The invention discloses an indication method for an uplink synchronous established command in a time-division synchronous code-division multi-access system, which comprises the steps that: A. a network terminal decides whether an indication terminal is required to carry out the uplink synchronization; if the indication terminal is required to carry out the uplink synchronization, then the time slot information in the control information carried by a high-speed sharing control channel is set up to all-zero, so as to indicate that the high-speed sharing control channel is the uplink synchronousestablished command; B. the terminal receives the high-speed sharing control channel and decides whether the time slot information in the control information carried by the high-speed sharing controlchannel is all-zero; if the time slot information is all-zero, then the terminal determines that the received high-speed sharing control channel is the uplink synchronous established command and carries out the uplink synchronization process. According to the indication method, the uplink synchronization can be carried out before receiving data through HS-SCCH on the basis of not increasing the HS-SCCH information domain.
Description
Technical field
The present invention relates to moving communicating field, uplink synchronous is set up the indicating means of order in particularly a kind of TDS-CDMA system.
Background technology
In TD SDMA (TD-SCDMA) mobile communication system, for the descending throughput that increases system and the peak rate of unique user, high speed downlink packet access (High SpeedDownlink Packet Access, HSDPA) technology have been introduced.User's downlink data of using this technology is in a special shared channel-high speed down sharing physical channel (High Speed-Physical DownlinkShared Channel, HS-PDSCH) upward transmission.For variation fast reaction, the base station (Node B) that is controlled at of the transmission means of HS-PDSCH channel is carried out, rather than carry out at radio network controller (RNC) as other traditional businesses to channel.
Node B is by special shared physical channel-High-Speed Shared Control Channel (HighSpeed-Shared Control Channel, HS-SCCH) send mode of HS-PDSCH channel is controlled, and terminal is by special shared physical channel-high-speed shared information channel (HighSpeed-Shared Information Channel, HS-SICH) reception condition of feedback terminal.The HS-SCCH channel carries out uplink synchronous control to HS-SICH, continues can keep between transmission period the uplink synchronous of terminal in the HS-PDSCH data.When not having the data transmission of this terminal on HS-PDSCH, HS-SCCH also can stop the control to this terminal uplink synchronous.At this moment, (Dedicated Physical Channel DPCH) keeps the DPCH of uplink synchronous by up-downgoing.
In the evolution technology of HSDPA, HSDPA can work under the situation of no up-downgoing DPCH, and this just causes under the situation that the HS-PDSCH free of data sends, and uplink synchronous can not be kept.Therefore, under the situation of no up-downgoing DPCH, how uplink synchronous is set up the order indication and give terminal, make terminal before receiving data, carry out uplink synchronous, just become the technical problem that needs to be resolved hurrily.
Summary of the invention
The indicating means that technical problem to be solved by this invention provides uplink synchronous foundation order in a kind of TDS-CDMA system on the basis that does not increase the HS-SCCH information field, carries out uplink synchronous by the HS-SCCH indicating terminal before receiving data.
For solving the problems of the technologies described above, it is as follows to the invention provides technical scheme:
Uplink synchronous is set up the indicating means of order in a kind of TDS-CDMA system, comprise: A, network terminal need to judge whether indicating terminal to carry out uplink synchronous, if then the gap information in the entrained control information of High-Speed Shared Control Channel is set to complete zero to indicate described High-Speed Shared Control Channel is that uplink synchronous is set up order.
Above-mentioned method, wherein, also comprise: B, terminal receive High-Speed Shared Control Channel, judge whether the gap information in the entrained control information of High-Speed Shared Control Channel that receives is complete zero, if, determine that then the described High-Speed Shared Control Channel that receives is that uplink synchronous is set up order, carries out the uplink synchronous process.
Above-mentioned method, in the steps A, network terminal is when determining not need indicating terminal to carry out uplink synchronous, then the parameter according to high speed down sharing physical channel is provided with the entrained control information that comprises gap information of High-Speed Shared Control Channel.
Above-mentioned method, among the step B, when the gap information of terminal in the entrained control information of the High-Speed Shared Control Channel of determining to receive is not zero entirely, determine that then described High-Speed Shared Control Channel is the control command of high speed down sharing physical channel, the control information entrained according to the described High-Speed Shared Control Channel that receives receives high speed down sharing physical channel.
By above technical scheme provided by the invention as can be seen, the present invention represents that by the full zero configuration of using the gap information territory another purposes-terminal synchronizes of HS-SCCH channel is set up order on the basis of existing HS-SCCH encoding and decoding.On the basis that does not increase the HS-SCCH information field, make the HS-SCCH channel that two kinds of purposes be arranged by a kind of special configurations: (1) sets up order as uplink synchronous; (2) as the control command of HS-PDSCH.Even under the situation of no up-downgoing DPCH, also can easily uplink synchronous be set up the order indication and give terminal.
Description of drawings
Fig. 1 is the particular flow sheet of steps A 1 in the method for the embodiment of the invention;
Fig. 2 is the particular flow sheet of step B2 in the method for the embodiment of the invention.
Embodiment
Key of the present invention is, is used as the terminal uplink synchronous by the particular arrangement to HS-SCCH and sets up order, indicates this terminal to carry out uplink synchronous before receiving data.
For ease of better understanding embodiments of the invention, introduce the routine configuration of HS-SCCH earlier.In the routine configuration of HS-SCCH, its entrained control information is as follows:
-spreading code set information (8 bit): x
Ccs, 1, x
Ccs, 2..., x
Ccs, 8
-gap information (5 bit): x
Ts, 1, x
Ts, 2..., x
Ts, 5
-modulation system information (1 bit): x
Ms, 1
-transport block size information (6 bit): x
Tbs, 1, x
Tbs, 2..., x
Tbs, 6
-hybrid automatic repeat request process information (3 bit): x
Hap, 1, x
Hap, 2..., x
Hap, 3
-redundancy version information (3 bit): x
Rv, 1, x
Rv, 2, x
Rv, 3
-new data indication (1 bit): x
Nd, 1
-HS-SCCH cyclic sequence number (3 bit): x
Hcsn, 1, x
Hcsn, 2, x
Hcsn, 3
-terminal iidentification number (16 bit): x
Ue, 1, x
Ue, 2..., x
Ue, 16
Wherein, gap information (5 bit): x
Ts, 1, x
Ts, 2..., x
Ts, 5In 5 bit respectively 5 time slots of indicating downlink whether the HS-PDSCH data of this terminal are arranged.When the value of a bit is 1, show that its time slot corresponding has the HS-PDSCH data of this terminal; And when its value is 0, show that its time slot corresponding does not have the HS-PDSCH data of this terminal.Can obtain thus, when 5 bit values of time slot information all are 0, represent all not have on all time slots the HS-PDSCH data of this terminal, this is impossible occur in normal HSDPA flow process.And in the present invention, gap information is set to complete 0 to indicate described HS-SCCH is that uplink synchronous is set up order just.
Particularly, adopt following steps in network terminal:
A1, network terminal need to judge whether indicating terminal to carry out uplink synchronous, if, then HS-SCCH is set up order as the uplink synchronous of this terminal, and gap information be set to complete 0, i.e. (x
Ts, 1, x
Ts, 2..., x
Ts, 5)=(0,0,0,0,0), other information fields are got arbitrary value except the UE identification number, and the UE identification number is the respective identification number of terminal for this reason; Otherwise this HS-SCCH is the control command of HS-PDSCH, according to the actual situation that takies resource of HS-PDSCH the corresponding bit of gap information is changed to 1, and other information fields are according to the actual conditions setting of HS-PDSCH.
A2, network terminal send HS-SCCH.
Wherein said steps A 1 is on the basis of existing HS-SCCH coding, distinguishes two kinds of purposes of HS-SCCH channel by the particular arrangement of gap information.Under the situation that does not increase the HS-SCCH information field, make the HS-SCCH channel that two kinds of purposes be arranged: (1) sets up order as uplink synchronous; (2) as the control command of HS-PDSCH.
Please refer to Fig. 1, steps A 1 is specific as follows:
Step 101: network terminal is when sending the HS-SCCH channel, judge that this HS-SCCH channel is to set up order as the uplink synchronous of control terminal, still as the control command of the HS-PDSCH channel of control terminal, set up order, enter step 102 if this HS-SCCH is a uplink synchronous; Otherwise, enter step 103.
Step 102: the network terminal gap information is set to complete zero, i.e. (x
Ts, 1, x
Ts, 2..., x
Ts, 5)=(0,0,0,0,0), and the UE identification number is set to the identification number of institute's control terminal, and other control information territories can be set to arbitrary value.
Step 103: network terminal is provided with the entrained control information of HS-SCCH according to the parameter of the HS-PDSCH that will send, and the UE identification number is set to the identification number of institute's control terminal.
Adopt following steps in terminal:
B1, terminal receive the HS-SCCH information that network terminal sends, and the control information that HS-SCCH is entrained solves;
Whether B2, terminal judges gap information are complete zero, i.e. (x
Ts, 1, x
Ts, 2..., x
Ts, 5) whether equal (0,0,0,0,0), if gap information is complete zero, determine that then this HS-SCCH channel is that uplink synchronous is set up order, terminal is carried out the uplink synchronous process; If gap information is not complete zero, then determine the control command that this HS-SCCH channel is the HS-PDSCH channel, terminal receives the HS-PDSCH channel according to the control information on the HS-SCCH.
Please refer to Fig. 2, step B2 is specific as follows:
Whether the entrained UE identification number of step 201: terminal judges HS-SCCH is the identification number of this terminal, if enter step 202; Otherwise, enter step 206.
Step 202: terminal is determined the control command of this HS-SCCH channel for this terminal, and other control informations that this HS-SCCH channel is carried solve.
Step 203: whether the entrained gap information of this HS-SCCH of terminal judges is complete zero, i.e. (x
Ts, 1, x
Ts, 2..., x
Ts, 5) whether be (0,0,0,0,0), be then to enter step 204, otherwise enter step 205.
Step 204: terminal determines that this HS-SCCH channel is that uplink synchronous is set up order, ignores the content of other control informations, and carries out the uplink synchronous process.
Step 205: terminal is determined the control channel that this HS-SCCH channel is the HS-PDSCH channel, and receives corresponding HS-PDSCH channel according to the entrained HS-PDSCH control information of HS-SCCH.
Step 206: terminal determines that this HS-SCCH channel is not the order of this terminal of control, ignores HS-SCCH and goes up entrained information.
More than specifically described the present invention by embodiment, but those of ordinary skills know, the present invention has many distortion and variation and does not break away from spirit of the present invention, wishes that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (3)
1. uplink synchronous is set up the indicating means of order in the TDS-CDMA system, it is characterized in that, comprising:
A, network terminal need to judge whether indicating terminal to carry out uplink synchronous, if, then when the HS-PDSCH data of this terminal did not send, the gap information in the entrained control information of High-Speed Shared Control Channel was set to complete zero and indicates described High-Speed Shared Control Channel to set up order for the HS-SICH uplink synchronous;
B, terminal receive High-Speed Shared Control Channel, judge whether the gap information in the entrained control information of High-Speed Shared Control Channel that receives is complete zero, if determine that then the described High-Speed Shared Control Channel that receives for HS-SICH uplink synchronous foundation order, carries out the uplink synchronous process.
2. the method for claim 1 is characterized in that:
In the steps A, network terminal is when determining not need indicating terminal to carry out uplink synchronous, and then the parameter according to high speed down sharing physical channel is provided with the entrained control information that comprises gap information of High-Speed Shared Control Channel.
3. method as claimed in claim 2 is characterized in that:
Among the step B, when the gap information of terminal in the entrained control information of the High-Speed Shared Control Channel of determining to receive is not zero entirely, determine that then described High-Speed Shared Control Channel is the control command of high speed down sharing physical channel, the control information entrained according to the described High-Speed Shared Control Channel that receives receives high speed down sharing physical channel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101064575A CN101272180B (en) | 2008-05-13 | 2008-05-13 | Indication method for ascending synchronous establishing command in TD-SCDMA system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101064575A CN101272180B (en) | 2008-05-13 | 2008-05-13 | Indication method for ascending synchronous establishing command in TD-SCDMA system |
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| CN101272180A CN101272180A (en) | 2008-09-24 |
| CN101272180B true CN101272180B (en) | 2011-05-18 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1968050A (en) * | 2005-11-15 | 2007-05-23 | 鼎桥通信技术有限公司 | Physical channel collocating method of time division synchronization code division multiple access system |
| EP1811684A2 (en) * | 2006-01-20 | 2007-07-25 | NEC Corporation | Transmission power control technique and wireless communications system using the same |
| CN101132228A (en) * | 2006-08-25 | 2008-02-27 | 大唐移动通信设备有限公司 | Method and terminal for ascending synchronous control in HSDPA system |
| JP4084832B1 (en) * | 2007-06-26 | 2008-04-30 | 松下電器産業株式会社 | Reception device, transmission device, random number seed value acquisition method, and wireless communication system |
-
2008
- 2008-05-13 CN CN2008101064575A patent/CN101272180B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1968050A (en) * | 2005-11-15 | 2007-05-23 | 鼎桥通信技术有限公司 | Physical channel collocating method of time division synchronization code division multiple access system |
| EP1811684A2 (en) * | 2006-01-20 | 2007-07-25 | NEC Corporation | Transmission power control technique and wireless communications system using the same |
| CN101132228A (en) * | 2006-08-25 | 2008-02-27 | 大唐移动通信设备有限公司 | Method and terminal for ascending synchronous control in HSDPA system |
| JP4084832B1 (en) * | 2007-06-26 | 2008-04-30 | 松下電器産業株式会社 | Reception device, transmission device, random number seed value acquisition method, and wireless communication system |
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| Publication number | Publication date |
|---|---|
| CN101272180A (en) | 2008-09-24 |
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