CN100442935C - High-speed down packet cut-in switching method - Google Patents
High-speed down packet cut-in switching method Download PDFInfo
- Publication number
- CN100442935C CN100442935C CNB200610057838XA CN200610057838A CN100442935C CN 100442935 C CN100442935 C CN 100442935C CN B200610057838X A CNB200610057838X A CN B200610057838XA CN 200610057838 A CN200610057838 A CN 200610057838A CN 100442935 C CN100442935 C CN 100442935C
- Authority
- CN
- China
- Prior art keywords
- channel
- physical control
- special physical
- control channel
- speed special
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 101100465000 Mus musculus Prag1 gene Proteins 0.000 claims description 2
- 101000741965 Homo sapiens Inactive tyrosine-protein kinase PRAG1 Proteins 0.000 abstract description 20
- 102100038659 Inactive tyrosine-protein kinase PRAG1 Human genes 0.000 abstract description 20
- 238000012790 confirmation Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 238000012546 transfer Methods 0.000 description 7
- 230000011664 signaling Effects 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 108010003272 Hyaluronate lyase Proteins 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a high-speed downlink grouping access switching method, wherein all uplink high-speed special physical control channel (HS-DPCCH) signals in a switching zone are merged in the mode of maximal ratio in the process of high-speed downlink grouping access (HSDPA) switching in a base station and the judgment of data reception confirmation information (ACK/NACK) and the decoding of the channel quality indication (CQI) are carried out to the merged signals to enhance the demodulation gain of an uplink HS-DPCCH channel and increase the judgment of demodulated ACK/NACK and the reliability of CQI information decoding.
Description
Technical field
The present invention relates to wireless communication technology, its high speed downlink packet that is particularly related in Wideband Code Division Multiple Access (WCDMA) (WCDMA) technology inserts (HSDPA) technology, is a kind of high-speed down packet cut-in switching method concretely.
Background technology
The full name of HSDPA is that high speed downlink packet inserts (High Speed Downlink PacketAccess), it is the key property of WCDMA technology the 5th version, retransmit (HARQ) by adaptive modulation and coding (AMC), mixing, and the series of key techniques such as fast dispatch of base station, realized descending high speed data transfer.
In the WCDMA system, the introducing of HSDPA has increased by three kinds of channels, be respectively the high-speed physical downlink shared channel (HS-PDSCH) (HS-PDSCH) in downlink transmission data information, the High-Speed Shared Control Channel (HS-SCCH) of transmission Downlink Control Information, and the High-Speed Dedicated Physical Control Channel (HS-DPCCH) of transmission uplink feedback information.
(DCH) compares with dedicated channel, and HSDPA has very big advantage.Mainly be:
1) a plurality of users in the sub-district share all resources of HSDPA.The operable HS-PDSCH channel in sub-district can reach 15 at most, and the spreading factor of the channel code that each channel uses is fixed as 16.The channel of these carrying data can reasonably be distributed to each user dynamically according to user's data transmission demand and residing channel circumstance, and synchronization also can be distributed to a plurality of users (as shown in Figure 1) to resource according to certain ratio.By using certain dispatching algorithm, system can also distribute more HS-PDSCH channel for the good user of channel circumstance, so just can further improve the capacity of system.And for dedicated channel, system is necessary for each user and distributes fixing resource, when certain user does not have transfer of data, distributes to this user's resource and can not be used by other user, thereby cause the waste of resource.Therefore, very suitable those transfer of data demands of HSDPA technology have sudden, and data transmission delay requires not have the high non-real-time services of session service such as voice call.
The fast dispatch algorithm is to make the multi-user more effectively use Radio Resource under the wireless environment of DYNAMIC COMPLEX, improves the throughput of whole sector.The dispatching algorithm function is implemented in the base station, has adopted the raise the price technology of branch of time-division, and the user can reschedule for each 2ms wireless sub-frame of the right to use of shared channel, and reaction speed improves greatly.
2) the adaptive modulation and coding function of HSDPA, make the modulation system that when the residing channel circumstance of user is reasonable, can adopt 16QAM, and use high encoding rate, thereby under the situation of using same letter sign indicating number and power resource, improved 100% even more the acquisition high-speed data transmission, the relative DCH channel of the resource utilization of channel code and power.If a cell configuration 15 HS-PDSDCH channels, each user's maximum data transfer rate can reach 13.976Mbps when the residing channel circumstance of user allowed in theory.Therefore, HSDPA is the solution that the WCDMA down high-speed data inserts, and can effectively solve the limited problem of downlink capacity.
3) in addition, HSDPA adopt to mix retransmits (HARQ) technology, directly the data of bust this is retransmitted and the upper-layer protocol rlc layer of DCH channel retransmits in physical layer, greatly reduce the time delay that data re-transmission is brought, thereby provide higher service quality for the user.
Be illustrated in figure 2 as that a user utilizes HSDPA to carry out the schematic diagram of transfer of data in the WCDMA system.
The air interface part of Fig. 2, use HSDPA to carry out the user of transfer of data for each, must set up a two-way DCH signaling channel simultaneously, a up HS-DPCCH channel, a descending HS-PDSCH channel, and a up DCH Traffic Channel.
Wherein, two-way DCH signaling channel is used between transmission user and the network interactive signaling message, and for example switching command, business are set up message, with measure control etc., descending HS-PDSCH channel is used for transmitting descending business datum, and up DCH Traffic Channel is used for transmitting up business datum or and the status report of downlink service data correspondence.
Especially, up HS-DPCCH channel is used for indicating (CQI) to the affirmation information (data correctly receive then feeding back ACK, and NACK is then fed back in the Data Receiving failure) and the channel quality of base station feedback Data Receiving by the user.If user feedback NACK, illustrate that then moment of front is not correctly received by the user from the data block that the HS-PDSCH channel sends, so the base station can send this piece not by the correct data that receive of user again at next delivery time, correctly receives and feeding back ACK up to the user.In the HSDPA algorithm is realized, the channel quality indicator (CQI) of subscriber equipment (UE) feeding back downlink HS-PDSCH channel in up link HS-DPCCH, the analysis of the CQI that reports by all UE, base station (NodeB) can obtain the channel quality condition of each UE, thus the distribution of decision shared resource in each UE.
A carrying in the Radio Link of user terminal is only distributed in same user's HS-PDSCH and the transmission of HS-SCCH, and promptly Serving cell that is to say that HSDPA only supports direct-cut operation, does not support soft handover or More Soft Handoff.Descending HS-PDSCH and HS-SCCH respectively have only one in the switch area, and UE sends up HS-DPCCH and also have only one, but in fact NodeB can receive the up HS-DPCCH signal that UE sends in two sub-districts.Direct-cut operation often has only a link in the switch area, hard handover approach is also adopted in the reception of general HS-DPCCH channel, it is the up HS-DPCCH channel that receives only a sub-district in the handoff procedure, carry out the control of the HARQ of HSDPA according to the ACK/NACK information on this channel of demodulation, carry out the control of the adaptive modulation and coding of HSDPA according to the CQI information of this channel of demodulation.
HSDPA handoff procedure in the base station: existed a HSDPA channel (to comprise HS-PDSCH before this in the Serving cell, HS-SCCH and HS-DPCCH), when UE enters into Target cell from Serving cell, NodeB can be based upon and set up a R99 channel (non-HSDPA channel) in the Target cell this moment, UE can give wireless network control (RNC) Primary Common Pilot Channel of Serving cell and Target cell (P-CPICH) quality uploading, RNC finds the P-CPICH quality of Target cell P-CPICH quality greater than Serving cell, then carrying out the Serving cell change (is that Target cell becomes Serving cell, former Serving cell becomes Target cell), RNC is by the signal transmission of the former Serving cell of synchronized reconfiguration message abort to the user, on Target cell, set up new transmission channel, NodeB can send descending HSDPA channel according to new Serving cell parameter, RNC requires UE that Target cell is replaced with Serving cell simultaneously, and require UE to receive descending HSDPA channel according to new Serving cell parameter, send up HS-DPCCH channel according to new Serving cell parameter, NodeB then receives the HS-DPCCH channel that UE sends according to new Serving cell parameter.
Fig. 3 is the frame structure of up HS-DPCCH channel, and it shows the radio frames of a 10ms, and this radio frames is made of a plurality of subframes, in the HS-DPCCH subframe of one of them 2ms, and a time slot (T
Slot=2560 chips) be used to mix the affirmation (HARQ-ACK) of automatic repeat requests, two other time slot (2 * T
Slot=5120 chips) be used for channel quality indication (CQI).
In the prior art, receive only the up HS-DPCCH channel of a sub-district in the inherent HSDPA handoff procedure in base station.Its defective is, underuses the signal of the up HS-DPCCH channel of all sub-districts in the switch area, has certain performance loss, reduced the ACK/NACK judgement of up HS-DPCCH channel and the reliability of CQI information decoding.
Summary of the invention
The object of the present invention is to provide a kind of high-speed down packet cut-in switching method, to improve to up HS-DPCCH channel demodulation gain the ACK/NACK judgement after the increase demodulation and the reliability of CQI information decoding.
Technical scheme of the present invention is: a kind of high-speed down packet cut-in switching method, wherein, high speed downlink packet inserts in (HSDPA) handoff procedure in the base station, set up uplink high-speed special physical control channel at Target cell, uplink high-speed special physical control channel (HS-DPCCH) signal of Target cell and Serving cell is carried out high specific merge.
Carry out the judgement of data reception acknowledgement information (ACK/NACK) and the decoding of channel quality indication (CQI) for the signal after merging.
High speed downlink packet inserts in (HSDPA) handoff procedure and may further comprise the steps in the described base station: set up uplink high-speed special physical control channel (HS-DPCCH) on Target cell, and make the channel parameter of this uplink high-speed special physical control channel (HS-DPCCH) consistent with the channel parameter of the uplink high-speed special physical control channel (HS-DPCCH) of Serving cell; Uplink high-speed special physical control channel (HS-DPCCH) to Serving cell carries out channel demodulation; Uplink high-speed special physical control channel (HS-DPCCH) to Target cell carries out channel demodulation; The channel demodulation result of Serving cell uplink high-speed special physical control channel and the channel demodulation result of Target cell uplink high-speed special physical control channel are carried out the high specific merging, obtain combined signal; Described combined signal is carried out the judgement of data reception acknowledgement information and the decoding of channel quality indication.
When the channel parameter of described uplink high-speed special physical control channel changes: the channel parameter of all uplink high-speed special physical control channels (HS-DPCCH) under the same user is all replaced with new channel parameter; According to described new channel parameter each uplink high-speed special physical control channel is carried out channel demodulation; The channel demodulation result of each uplink high-speed special physical control channel is carried out the high specific merging, obtain combined signal; Described combined signal is carried out the judgement of data reception acknowledgement information and the decoding of channel quality indication.
Described high specific merging is meant: the signal quality that each uplink high-speed special physical control channel that merges according to need receives is weighted addition.
Described data reception acknowledgement information is meant: the nack message when ACK information when data correctly receive or Data Receiving failure.
Beneficial effect of the present invention is, by a kind of high-speed down packet cut-in switching method is provided, in the HSDPA handoff procedure, all up HS-DPCCH channels in the switch area are adopted the method for high specific merging, can improve to up HS-DPCCH channel demodulation gain the ACK/NACK judgement after the increase demodulation and the reliability of CQI information decoding.
Description of drawings
The schematic diagram that Fig. 1 dispatches between a plurality of users for HSDPA resource in the prior art;
Fig. 2 utilizes HSDPA to carry out the structured flowchart of transfer of data for user in the prior art;
Fig. 3 is the frame assumption diagram of up HS-DPCCH;
Fig. 4 activates the flow chart of HSDPA on R99 channel basis for the present invention;
Fig. 5 is the uplink demodulation flow chart of the present invention base station when cell change.
Embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention, purpose of the present invention mainly is to propose in the base station in the HSDPA handoff procedure, utilize the signal of the up HS-DPCCH channel of all sub-districts, up HS-CPCCH signals all in the switch area is carried out high specific to be merged, raising gains to up HS-DPCCH channel demodulation, the ACK/NACK judgement after the increase demodulation and the reliability of CQI information decoding.
As shown in Figure 4, in the base station in the HSDPA handoff procedure, when in Target cell, setting up a R99 channel, base station (NodeB) tells the R99 channel that the uplink demodulation processing module is newly-increased and the HS-DPCCH channel of Serving cell to belong to same user by interior signaling, and must do softer merging, when the uplink demodulation processing module is set up newly-increased R99 channel in inside, automatically on R99 channel basis, activate HSDPA, promptly on Target cell, set up a up HS-DPCCH channel, this HS-DPCCH channel parameter is consistent with the HS-DPCCH channel parameter of Serving cell, and do not carry out the decoding of ACK/NACK judgement and CQI behind the HS-DPCCH channel demodulation of Serving cell immediately, but after the HS-DPCCH channel of Target cell is also finished channel demodulation by the time, two channel demodulation results carry out the high specific merging, and (the high specific merging is exactly to be weighted addition according to the signal quality that the channel that need merge receives, be that the measured channel weights of matter are bigger, ropy channel weights are less, then symbol after each demodulation on the respective channel and weights are multiplied each other, latter two channel corresponding symbol addition), the signal after the merging carries out the decoding of ACK/NACK judgement and CQI again.Described weights are relevant with quality of signals, i.e. the received signal amplitude square.
As shown in Figure 5, if wireless network control (RNC) requires the Serving cell change by synchronized reconfiguration message, promptly change up HS-DPCCH channel parameter, NodeB uplink demodulation module then should all replace with most recent parameters to the parameter of all HS-DPCCH channels under the same user.Carry out each HS-DPCCH channel demodulation according to this most recent parameters then, each HS-DPCCH channel is carried out the high specific merging, and (the high specific merging is exactly to be weighted addition according to the signal quality that the channel that need merge receives, be that the measured channel weights of matter are bigger, ropy channel weights are less, then symbol after each demodulation on the respective channel and weights are multiplied each other, latter two channel corresponding symbol addition), at last the signal after merging is carried out the decoding of ACK/NACK judgement and CQI.
Described most recent parameters has ACK/NACK repetition factor, ACK/NACK repetition period, CQI repetition factor, CQI repetition period.Wherein, the ACK/NACK repetition period is meant the frequency that at every turn reports ACK/NACK, and span 2ms, 4ms, 8ms, 10ms, 20ms, 40ms, 80ms and 160ms are such as report ACK/NACK one time every 160ms; Repetition factor referred to repeat times of reporting in this cycle, span 1～4, and ACK/NACK in 160ms, reports identical value report a different value every 160ms 4 times, the gain that reports with raising.CQI is also similar.
In the HSDPA handoff procedure,, can improve to up HS-DPCCH channel demodulation gain the ACK/NACK judgement after the increase demodulation and the reliability of CQI information decoding to the method that all up HS-DPCCH channels in the switch area adopt high specific to merge.
Above embodiment only is used to illustrate the present invention, but not is used to limit the present invention.
Claims (6)
1. high-speed down packet cut-in switching method, it is characterized in that, high speed downlink packet inserts in the handoff procedure in the base station, set up uplink high-speed special physical control channel at Target cell, the uplink high-speed special physical control channel signal of Target cell and Serving cell is carried out high specific merge.
2. method according to claim 1 is characterized in that, carries out the judgement of data reception acknowledgement information and the decoding of channel quality indication for the signal after merging through high specific.
3. method according to claim 1, it is characterized in that, describedly set up uplink high-speed special physical control channel, the uplink high-speed special physical control channel signal of Target cell and Serving cell carried out high specific merge and may further comprise the steps at Target cell:
On Target cell, set up uplink high-speed special physical control channel, and make the channel parameter of this uplink high-speed special physical control channel consistent with the channel parameter of the uplink high-speed special physical control channel of Serving cell;
Uplink high-speed special physical control channel to Serving cell carries out channel demodulation;
Uplink high-speed special physical control channel to Target cell carries out channel demodulation;
The channel demodulation result of Serving cell uplink high-speed special physical control channel and the channel demodulation result of Target cell uplink high-speed special physical control channel are carried out the high specific merging, obtain combined signal;
Described combined signal is carried out the judgement of data reception acknowledgement information and the decoding of channel quality indication.
4. method according to claim 1 is characterized in that, when the channel parameter of described uplink high-speed special physical control channel changes:
The channel parameter of all uplink high-speed special physical control channels under the same user is all replaced with new channel parameter;
According to described new channel parameter each uplink high-speed special physical control channel is carried out channel demodulation;
The channel demodulation result of each uplink high-speed special physical control channel is carried out the high specific merging, obtain combined signal;
Described combined signal is carried out the judgement of data reception acknowledgement information and the decoding of channel quality indication.
5. according to any described method of claim 1 to 4, it is characterized in that described high specific merging is meant: the signal quality that each uplink high-speed special physical control channel that merges according to need receives is weighted addition.
6. according to any described method of claim 2 to 4, it is characterized in that described data reception acknowledgement information is meant: the nack message when ACK information when data correctly receive or Data Receiving failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610057838XA CN100442935C (en) | 2006-03-01 | 2006-03-01 | High-speed down packet cut-in switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610057838XA CN100442935C (en) | 2006-03-01 | 2006-03-01 | High-speed down packet cut-in switching method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1849009A CN1849009A (en) | 2006-10-18 |
| CN100442935C true CN100442935C (en) | 2008-12-10 |
Family
ID=37078327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610057838XA Active CN100442935C (en) | 2006-03-01 | 2006-03-01 | High-speed down packet cut-in switching method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100442935C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5184139B2 (en) * | 2008-02-25 | 2013-04-17 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile communication system, mobile communication method, and radio control apparatus |
| CN101547513B (en) * | 2008-03-25 | 2011-09-14 | 华为技术有限公司 | Method for controlling access of user equipment in multi-frequency system and network equipment |
| WO2013177793A1 (en) * | 2012-06-01 | 2013-12-05 | 华为技术有限公司 | Method and device for realizing feedback information repeat under multi-flow transmission |
| CN103595512B (en) * | 2012-08-13 | 2018-06-22 | 中兴通讯股份有限公司 | The method and device of dispatch terminal, base station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1169416A (en) * | 1997-06-09 | 1999-03-09 | Nec Corp | Cellular communication system and mobile equipment and base station used for the same |
| CN1351429A (en) * | 2000-10-31 | 2002-05-29 | 华为技术有限公司 | Method and equipment for up receiving array in wireless communicaltion system |
| CN1465203A (en) * | 2001-06-06 | 2003-12-31 | 松下电器产业株式会社 | Cellular radio transmission apparatus and cellular radio transmission method |
| US20040229617A1 (en) * | 1997-06-09 | 2004-11-18 | Nec Corporation | Cellular communication system, and mobile and base stations used in the same |
-
2006
- 2006-03-01 CN CNB200610057838XA patent/CN100442935C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1169416A (en) * | 1997-06-09 | 1999-03-09 | Nec Corp | Cellular communication system and mobile equipment and base station used for the same |
| US20040229617A1 (en) * | 1997-06-09 | 2004-11-18 | Nec Corporation | Cellular communication system, and mobile and base stations used in the same |
| CN1351429A (en) * | 2000-10-31 | 2002-05-29 | 华为技术有限公司 | Method and equipment for up receiving array in wireless communicaltion system |
| CN1465203A (en) * | 2001-06-06 | 2003-12-31 | 松下电器产业株式会社 | Cellular radio transmission apparatus and cellular radio transmission method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1849009A (en) | 2006-10-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8204023B2 (en) | CQI reporting method and apparatus for mobile telecommunication system | |
| US9232359B2 (en) | Apparatus and method of transmitting/receiving MBMS | |
| CN100593354C (en) | Method and system for a data transmission in a communication system | |
| CN101971540B (en) | Hs-scch orders for cqi mode selection | |
| EP2146515A1 (en) | Base station device and communication control method | |
| EP1879403A1 (en) | Method, system and base station for multimedia broadcast/multicast service | |
| CN102144366A (en) | Methods and apparatus for improving cell-edge data throughput in a wireless communications system | |
| CN103141034A (en) | Switching-based downlink aggregation for multi-point hsdpa | |
| CN102067499B (en) | Method and system for implementing HARQ retransmission using unicast link | |
| CN1833379A (en) | Mobile station apparatus and receiving method | |
| CN102857966A (en) | Transmission control method for receiving quality information and result information in a mobile station | |
| CN1921686B (en) | Method and system for treatment of communication channel quality indication | |
| CN100426799C (en) | Access hard switchover method and system of high speed downlink packet | |
| EP2747504A1 (en) | Method for activating multiple streams transmission ue to transmit hs-dpcch and ue thereof | |
| CN105379318A (en) | Group communication apparatus and method | |
| KR100876282B1 (en) | Transmission Power Control Method of High Speed Downlink Packet Access (HSDPA) System | |
| CN100442935C (en) | High-speed down packet cut-in switching method | |
| CN100384099C (en) | Power controlling method for uplink high-speed special physical control channel | |
| CN100446626C (en) | Method for determining service cell of high-speed uplink packet access technique | |
| CN101247147B (en) | Power control method of physical channel mapped by high speed descending sharing channel | |
| CN100395965C (en) | Power control method of downlink high-speed shared control channel | |
| Hsu et al. | Evolution towards simultaneous high-speed packet data and voice services: an overview of cdma2000 1/spl times/EV-DV | |
| CN101384071A (en) | HS-DSCH transmission method under state of non-district dedicated channel | |
| KR100876798B1 (en) | Apparatus and method for determing the time delay of high speed-shared control channel in a high speed downlink packet access system | |
| CN104272607A (en) | Improved control channel in a high-speed packet access system |
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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211223 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: xFusion Digital Technologies Co., Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |