CN1985526A - Method and apparatus for processing data blocks during soft handover - Google Patents
Method and apparatus for processing data blocks during soft handover Download PDFInfo
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- CN1985526A CN1985526A CNA2004800270325A CN200480027032A CN1985526A CN 1985526 A CN1985526 A CN 1985526A CN A2004800270325 A CNA2004800270325 A CN A2004800270325A CN 200480027032 A CN200480027032 A CN 200480027032A CN 1985526 A CN1985526 A CN 1985526A
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Abstract
A method and apparatus for processing data blocks during soft handover. The apparatus may be a wireless communication system including at least two enhanced uplink soft handover (EU-SHO) Node-Bs and a radio network controller (RNC). Each Node-B decodes a received data block and forwards the decoded data block to the RNC. If the RNC receives at least one copy of a successfully decoded data block, the RNC uses a re-ordering function entity to process the copy of the successfully decoded data block to support in-sequence delivery to higher protocol layers. If the RNC receives more than one copy of a successfully decoded data block, the RNC discards the extra successfully decoded data block copies. The RNC is either a serving-RNC (S-RNC) or a controllingRNC (C-RNC). Each Node-B includes a medium access control (MAC) entity that handles enhanced uplink dedicated channel (EU-DCH) functionalities.
Description
Technical field
The relevant wireless communication field of the present invention.More especially, the present invention is relevant handles as the block in many cell wireless communication system of frequency division duplexing (FDD) or time division duplex (TDD).
Background technology
Improve cochain and contain, in the at present tested third generation partner plan (3GPP) that is shown in distribution 6 (R6) Universal Mobile Telecommunications System (UMTS) research project " reinforcement of the frequency division duplexing cochain " train of thought of the method for output and transmission delay.
In order to reach these targets, expect that extensively Node B (base station) will bear scheduling and assign uplink resource (actual channel) responsibility to the user.Keep rough control even this principle is a radio network controller, Node B can also be made more effective decision and management cochain Radio Resource than radio network controller by short term basis.Similar approach is used in distribution 5 (R5) high speed downlink packet access (HSDPA) in Universal Mobile Telecommunications System frequency division duplexing (FDD) and time division duplex (TDD) pattern.
Also imagine between the wireless transmission/receive unit (WTRU) and universal terrestrial access network (UTRAN) in the shared time section that some independent cochains are processed over.This one of example mix automatic repeat request (HARQ) or only medium access control layer automatic repeat request (ARQ) operation for medium access control (MAC) layer, wherein each transmission may need the different numbers that transmit successfully to be received by the universal terrestrial access network.In order to limit influence, be that the introduction that protocol layer in the expection medium access control should not be reinforced cochain dedicated channel (EU-DCH) influences to system architecture.Be data in the formation that is passed to Radio Link control (RLC) protocol layer by a demand of this introduction.Therefore, the high speed downlink packet access operation in the similar down chain, be need the universal terrestrial access network again the formation that produced according to the wireless transmission/receive unit radio link control entity of ranking function organize and be received data block.
The macroscopical diversity operation of soft handing-over system needs the upper link transmission in each cell in the centralized control active set.Active set may comprise a plurality of Node B.Transmission is produced up at least one Node B and only realizes successfully being transmitted as again.Success is transmitted and is not guaranteed by all Node B.Therefore, because group is finished in the transmission of may not achieving success in any Node B, so the successfully transmission of sorting again can't be finished.
Summary of the invention
Relevant processing data blocks during soft handover method of the present invention and device.This device can be wireless communication system, radio network controller (RNC) or integrated circuit (IC).Wireless communication system comprises at least two enhanced uplink soft handover Node B and a radio network controller.Each Node B decodable code is received block and passes on has decoded result, and just this decoded block of Cyclic Redundancy Check (CRC) is to this radio network controller.If radio network controller receives at least one duplicate of successful decoded data blocks, then radio network controller can use the ranking function entity successfully to handle decoded block again provides and is passed to higher protocol level in the formation.If radio network controller receives the successful decoded data blocks of an above duplicate, then radio network controller is abandoned extra successful decoded data blocks duplicate.Radio network controller is service wireless network controller (S-RNC) or control radio network controller (C-RNC).Each Node B comprises the MAC entity that can handle enhanced uplink dedicated channel function.
Description of drawings
Fig. 1 is a wireless communication system calcspar of handling the block in the service wireless network controller according to preferred embodiment of the present invention.
Fig. 2 comprises the process chart of handling the method step of block in Fig. 1 system.
Fig. 3 is the wireless communication system calcspar according to the block in the alternate embodiment processing controls radio network controller of the present invention.
Fig. 4 comprises the process chart of handling the method step of block in Fig. 3 system.
Embodiment
The present invention will illustrate with reference to the accompanying drawings that the same numeral system that wherein spreads all in full represents same components.
After this, " wireless transmission/receive unit " speech is to comprise but be not subject to subscriber equipment (UE), travelling carriage, and fixing or moving user unit, calling set maybe can operate on any other types of devices in the wireless environment.After this be called as " base station " speech and be and comprise but be not subject to Node B, address control unit, other type in access point or the wireless environment connects Jie's device.
As be applied to Universal Mobile Telecommunications System, CDMA2000 (code division multiple access 2000) and code division multiple access person, the present invention can further be applied to time division duplex, and the synchronous code division multiple access of frequency division duplexing and timesharing (TD-SCDMA) is applied to other wireless system but also can imagine.At CDMA2000, the present invention may be implemented on EV-DO (data are just only arranged) and EV-DV (just data and voice).
During the soft handover operation, higher level is maintained at the active subset of enhanced uplink cell, is to be maintained in the macroscopical diversity status of soft handing-over to this enhanced uplink dedicated channel.Cell in these active subset is controlled by different enhanced uplink soft handover Node B.
Fig. 1 shows service wireless network controller 105 and at least two (2) the enhanced uplink soft handover Node B 110 (110A that comprise according to preferred embodiment operation of the present invention ... wireless communication system 100 110N).No matter have or not soft handing-over, each wireless transmission/receive unit all has the one or more entities of ranking function again 115 and is implemented in service wireless network controller 105.Mixing automatic repeat request or the automatic repeat request processing of handling enhanced uplink dedicated channel function are in the MAC entity 120 that is placed in each enhanced uplink soft handover Node B 110.Respectively ranking function entity 115 can be communicated by letter with the higher protocol level 125 in the service wireless network controller 105 and be comprised an associated buffer (unlabelled) again.
Fig. 2 comprises block in the treatment system 100 for during the soft handing-over, just processing 200 flow charts of the method step of packet data unit (PDUs).In the step 205, block, (enhanced uplink data block just) is to be received in each enhanced uplink soft handover Node B 110 from wireless transmission/receive unit.In the step 210, each enhanced uplink soft handover Node B 110 decoding is received block, and this decoded block is transferred to service wireless network controller 105.Should notice that each enhanced uplink soft handover Node B 110 will attempt decoding and be received enhanced uplink transmission.When having Cyclic Redundancy Check, unless wireless transmission/receive unit entity and logic channel/medium access control-d is known by other method, otherwise each enhanced uplink soft handover Node B 110 can not transfer to service wireless network controller 105 with being received block.All successful decoded blocks of quilt with good Cyclic Redundancy Check results are all transferred to service wireless network controller 105.
Still with reference to figure 2, determine whether at least one duplicate of successful decoded data blocks receives (step 215) from enhanced uplink soft handover Node B 110 serviced radio network controllers 105.If decision service wireless network controller 105 does not receive the duplicate of any successful decoded data blocks as yet in the step 215, then be regarded as yet not by correct receive (step 220) by transfer of data block system.In the step 215, if at least one duplicate of the successful decoded data blocks of decision receives from enhanced uplink soft handover Node B 110 serviced radio network controllers 105, determine then then whether the multiple duplicate of successful decoded data blocks is received (step 225) from different enhanced uplink soft handover Node B 110.
If the multiple duplicate of the successful decoded data blocks of step 225 decision is received from different enhanced uplink soft handover Node B 110, then only a duplicate is stored in to be used as in the buffer of ordering again (no icon) that the entity of ranking function again 115 in the serviced radio network controller 105 keeps and is correctly received block, and the duplicate system that additionally is received of any successful decoded data blocks is discarded as redundant data (step 230).
At last, in the step 235, successful decoded data blocks is that the entity of ranking function again 115 in the serviced radio network controller 105 is handled.The entity of ranking function again 115 in the service wireless network controller 105 can be carried out collator again and correctly is received in successful decoded data blocks in the ranking function entity 115 to support being passed to higher protocol level 125 in the formation in these again.
It is helpful handling 200, because can be combined and be organized in the higher protocol level 125 to be passed to service wireless network controller 105 formation from different enhanced uplink soft handover Node B 110 received block.Be placed on entities of ranking function again 115 in the service wireless network controller 105 and can make processed being independent of in enhanced uplink medium access control packet data unit be provided the Node B that receives each packet data unit and successfully receive and correctly be passed to higher protocol level 235, cause the medium access control data to be lowered and Radio Link control recovers.
Fig. 3 shows control radio network controller 305 and at least two (2) the enhanced uplink soft handover Node B 110 (110A that comprise according to alternate embodiment operation of the present invention ... wireless communication system 300 110N).One or more again ranking function entity 315 be implemented in control radio network controller 305 support soft handing-over.Mixing automatic repeat request or the automatic repeat request processing of handling enhanced uplink dedicated channel function are in the MAC entity 320 that is placed in each enhanced uplink soft handover Node B 310.Respectively ranking function entity 315 can be communicated by letter with the higher protocol level 325 that is external to control radio network controller 305 and be comprised an associated buffer (unlabelled) again.
Fig. 4 comprises block in the treatment system 300 for during the soft handing-over, just processing 400 flow charts of the method step of packet data unit.In the step 405, block, (enhanced uplink data block just) is to be received in each enhanced uplink soft handover Node B 310 from wireless transmission/receive unit.In the step 410, each enhanced uplink soft handover Node B 310 decoding is received block, and this decoded block is transferred to control radio network controller 305.Should notice that each enhanced uplink soft handover Node B 310 will attempt decoding and be received enhanced uplink transmission.When having Cyclic Redundancy Check, unless wireless transmission/receive unit entity and logic channel/medium access control-d is known by other method, otherwise each enhanced uplink soft handover Node B 310 can not transfer to control radio network controller 305 with being received block.All successful decoded blocks of quilt with good Cyclic Redundancy Check results are all transferred to control radio network controller 305.
Still with reference to figure 4, determine whether at least one duplicate of successful decoded data blocks receives (step 415) from enhanced uplink soft handover Node B 310 Be Controlled radio network controllers 305.If decision control radio network controller 305 does not receive the duplicate of any successful decoded data blocks as yet in the step 415, then be reinforced the block system that uplink soft handover Node B 310 passes on and be regarded as yet by correct receive (step 420).In the step 415, if at least one duplicate of the successful decoded data blocks of decision receives from enhanced uplink soft handover Node B 310 Be Controlled radio network controllers 305, determine then then whether the multiple duplicate of successful decoded data blocks is received (step 425) from different enhanced uplink soft handover Node B 310.
If the multiple duplicate of the successful decoded data blocks of step 425 decision is received from different enhanced uplink soft handover Node B 310, then only a duplicate is stored in to be used as in the buffer of ordering again (unlabelled) that the entity of ranking function again 315 in the Be Controlled radio network controller 305 keeps and is correctly received block, and the duplicate system that additionally is received of any successful decoded data blocks is discarded as redundant data (step 430).
At last, in the step 435, successful decoded data blocks is that the entity of ranking function again 315 in the Be Controlled radio network controller 305 is handled.It can be carried out collator again and correctly is received in successful decoded data blocks in the ranking function entity 315 to support being passed to higher protocol level 325 in the formation in these again.
It is helpful handling 400, has identical control radio network controller 305 because suppose these Node B 310, so can be combined and be organized in the formation to be passed to higher protocol level 325 from different enhanced uplink soft handover Node B 310 received block.Place ranking function some strictness in service wireless network controller 105 though it is used, this is a case often again.Yet this restriction is considered counteracting by other.For example, the interests of service wireless network controller operation are to reduce the delay that mixes the automatic repeat request operation.The performance benefits that minimizes this delay is well known in the technical field.During the soft handing-over, also has the shared upper link scheduler of all cells of the active enhanced uplink subclass that is used for comprising the cell of being controlled by different nodes B 310 in the expection control radio network controller 305.
Though the present invention shows and explanation that with reference to preferred embodiment is special the person skilled in the art only should be appreciated that otherwise deviates from the invention described above category, all can do the change of various types and details.
Claims (37)
1. the method for a processing data blocks during soft handover in the wireless communication system that comprises at least two Node B and a radio network controller (RNC), wherein this radio network controller (RNC) comprises ranking function entity again, and this method comprises:
(a) each Node B decoding one receives block and passes on this decoded data blocks to this radio network controller; And
(b) if this radio network controller receives at least one duplicate of a successful decoded data blocks from this Node B, then this radio network controller can use this duplicate that ranking function entity handles should the success decoded data blocks again to support to be passed in the formation this higher protocol level.
2. the method for claim 1 is characterized in that step (b) further comprises:
(b1) as if the duplicate of this radio network controller from this Node B reception successful decoded data blocks more than, then this radio network controller is abandoned the duplicate of extra successful decoded data blocks.
3. the method for claim 1 it is characterized in that this radio network controller is a service wireless network controller (S-RNC), and this higher protocol level is to be positioned at this service wireless network controller.
4. the method for claim 1 it is characterized in that this radio network controller is a control radio network controller (C-RNC), and this higher protocol level is to be positioned at this control radio network controller outside.
5. the method for claim 1 is characterized in that each Node B is an enhanced uplink soft handover (EU-SHO) Node B.
6. the method for claim 1 is characterized in that each Node B comprises medium access control (MAC) entity that can handle enhanced uplink dedicated channel (EU-DCH) function.
7. the wireless communication system of a processing data blocks during soft handover, this system comprises:
(a) at least two Node B; And
One radio network controller (RNC) of (b) communicating by letter with this Node B, this radio network controller comprises ranking function entity again and again, wherein each Node B decoding receives block and passes on this decoded data blocks to this radio network controller, and if this radio network controller receives at least one duplicate of successful decoded data blocks from this Node B, then radio network controller can use this duplicate that ranking function entity handles should the success decoded data blocks again to support to be passed in the formation this higher protocol level.
8. system as claimed in claim 7 is characterized in that then this radio network controller is abandoned the duplicate of extra successful decoded data blocks as if the duplicate of this radio network controller from this Node B reception successful decoded data blocks more than.
9. system as claimed in claim 7 it is characterized in that this radio network controller is a service wireless network controller, and this higher protocol level is to be positioned at this service wireless network controller.
10. system as claimed in claim 7 it is characterized in that this radio network controller is a control radio network controller, and this higher protocol level is to be positioned at this control radio network controller outside.
11. system as claimed in claim 7 is characterized in that each Node B is an enhanced uplink soft handover Node B.
12. system as claimed in claim 7 is characterized in that each Node B comprises medium access control (MAC) entity that can handle enhanced uplink dedicated channel (EU-DCH) function.
13. a radio network controller is used to handle the block that is transferred to this radio network controller by at least two Node B during the soft handing-over, this radio network controller comprises:
(a) ranking function entity at least again and again;
(b) higher protocol level; And
(c) be used for receiving the device of at least one duplicate of a successful decoded data blocks from this Node B, wherein this radio network controller use this again ranking function entity this duplicate of handling this success decoded data blocks support to be passed in the formation this higher protocol level.
14. radio network controller as claimed in claim 13 is characterized in that further comprising:
(d) in order to abandon the device that receives extra successful decoded data blocks duplicate from this Node B.
15. radio network controller as claimed in claim 13 is characterized in that this radio network controller is a service wireless network controller.
16. radio network controller as claimed in claim 13 is characterized in that each Node B is an enhanced uplink soft handover Node B.
17. this radio network controller as claimed in claim 13 is characterized in that each Node B comprises medium access control (MAC) entity that can handle enhanced uplink dedicated channel (EU-DCH) function.
18. radio network controller, be used to handle during the soft handing-over block that transfers to this radio network controller by at least two Node B and support to be passed in the formation higher protocol level of external this radio network controller, this radio network controller comprises:
(a) ranking function entity at least again and again; And
(b) be used for receiving the device of at least one duplicate of successful decoded data blocks from this Node B, wherein this radio network controller be to use this again the ranking function entity handle this duplicate of this success decoded data blocks.
19. radio network controller as claimed in claim 18 is characterized in that further comprising:
(c) in order to abandon the device that receives extra successful decoded data blocks duplicate from this Node B.
20. radio network controller as claimed in claim 18 is characterized in that this radio network controller is a control radio network controller.
21. radio network controller as claimed in claim 18 is characterized in that each Node B is an enhanced uplink soft handover Node B.
22. radio network controller as claimed in claim 18 is characterized in that each Node B comprises medium access control (MAC) entity that can handle enhanced uplink dedicated channel (EU-DCH) function.
23. an integrated circuit (IC) is used to handle the block that receives from a plurality of data source, this integrated circuit comprises:
(a) ranking function entity at least again and again;
(b) higher protocol level; And
(c) be used for receiving the device of at least one duplicate of a successful decoded data blocks from this data source, wherein this integrated circuit use this again ranking function entity this duplicate of handling this success decoded data blocks support to be passed in the formation this higher protocol level.
24. this integrated circuit as claimed in claim 23 is characterized in that further comprising:
(d) in order to abandon the device that receives extra successful decoded data blocks duplicate from this Node B.
25. integrated circuit as claimed in claim 23 is characterized in that each data source is an enhanced uplink soft handover Node B.
26. integrated circuit as claimed in claim 23 is characterized in that each data source comprises medium access control (MAC) entity that can handle enhanced uplink dedicated channel (EU-DCH) function.
27. integrated circuit as claimed in claim 23 is characterized in that this integrated circuit is to be positioned at a service wireless network controller, it can handle the block that is transferred to this service wireless network controller by this data source during soft handing-over.
28. an integrated circuit is used to handle the block that receives from a plurality of data source, this integrated circuit comprises:
(a) ranking function entity at least again and again; And
(b) be used for receiving the device of at least one duplicate of successful decoded data blocks from this data source, wherein this integrated circuit use this again ranking function entity this duplicate of handling this success decoded data blocks support to be passed in the formation outside higher protocol level.
29. integrated circuit as claimed in claim 28 is characterized in that further comprising:
(c) in order to abandon the device of the extra successful decoded data blocks duplicate that receives from this Node B.
30. integrated circuit as claimed in claim 28 is characterized in that each data source is an enhanced uplink soft handover Node B.
31. integrated circuit as claimed in claim 28 is characterized in that each data source comprises medium access control (MAC) entity that can handle enhanced uplink dedicated channel (EU-DCH) function.
32. integrated circuit as claimed in claim 28 is characterized in that this integrated circuit is to be positioned at a control radio network controller, it can handle the block that is transferred to this control radio network controller by this data source during soft handing-over.
33. radio network controller, in the wireless communication system that comprises a plurality of wireless transmission/receive units (WTRU) of being configured to enhanced uplink (EU) service and a plurality of Node B, this radio network controller is to be used to soft handing-over interval to handle the higher protocol level that the block that is transferred to this radio network controller by at least two these Node B supports to be passed in the formation external this radio network controller, and this radio network controller comprises:
(a) a plurality of entities of ranking function again, wherein this again the ranking function entity at least one produce relevant with these a plurality of wireless transmission/receive units respectively; And
(b) be used for receiving the device of at least one duplicate of a successful decoded data blocks from this Node B, wherein this radio network controller use this at least again and again the ranking function entity handle this duplicate of this success decoded data blocks.
34. radio network controller as claimed in claim 33 is characterized in that further comprising:
(c) be used to abandon the extra duplicate of a successful decoded data blocks that receives from this Node B.
35. radio network controller as claimed in claim 33 is characterized in that this radio network controller is a control radio network controller.
36. radio network controller as claimed in claim 33 is characterized in that each Node B is an enhanced uplink soft handover Node B.
37. radio network controller as claimed in claim 33 is characterized in that each Node B comprises medium access control (MAC) entity that can handle enhanced uplink dedicated channel (EU-DCH) function.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510175652.3A CN104767596A (en) | 2003-11-05 | 2004-11-02 | Wireless communication system and method used therein |
| CN201510175151.5A CN104796236B (en) | 2003-11-05 | 2004-11-02 | The method and radio network controller of data block are handled during soft handing-over |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51777903P | 2003-11-05 | 2003-11-05 | |
| US60/517,779 | 2003-11-05 | ||
| US10/939,256 | 2004-09-10 | ||
| US10/939,256 US7206581B2 (en) | 2003-11-05 | 2004-09-10 | Method and apparatus for processing data blocks during soft handover |
| PCT/US2004/036376 WO2005048465A2 (en) | 2003-11-05 | 2004-11-02 | Method and apparatus for processing data blocks during soft handover |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510175652.3A Division CN104767596A (en) | 2003-11-05 | 2004-11-02 | Wireless communication system and method used therein |
| CN201510175151.5A Division CN104796236B (en) | 2003-11-05 | 2004-11-02 | The method and radio network controller of data block are handled during soft handing-over |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1985526A true CN1985526A (en) | 2007-06-20 |
| CN1985526B CN1985526B (en) | 2015-05-13 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200480027032.5A Active CN1985526B (en) | 2003-11-05 | 2004-11-02 | Method and apparatus for processing data blocks during soft handover |
| CNU2004201070874U Expired - Lifetime CN200956648Y (en) | 2003-11-05 | 2004-11-05 | Apparatus for processing data blocks during soft handover |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004201070874U Expired - Lifetime CN200956648Y (en) | 2003-11-05 | 2004-11-05 | Apparatus for processing data blocks during soft handover |
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| CN (2) | CN1985526B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19833967C2 (en) * | 1998-07-28 | 2001-02-08 | Siemens Ag | Reception diversity procedure and radio communication system with diversity reception |
| US20020065064A1 (en) * | 2000-09-08 | 2002-05-30 | Avtec Systems, Inc. | Methods and systems for reliable data delivery under mobile conditions |
| CN1175602C (en) * | 2001-09-17 | 2004-11-10 | 华为技术有限公司 | Method for treatment of user's interface while optimizing soft switch-over |
| CN1192530C (en) * | 2002-04-08 | 2005-03-09 | 华为技术有限公司 | Method for controlling upline control channel power in soft switching of high speed data packet insertion system |
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2004
- 2004-11-02 CN CN200480027032.5A patent/CN1985526B/en active Active
- 2004-11-05 CN CNU2004201070874U patent/CN200956648Y/en not_active Expired - Lifetime
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| Publication number | Publication date |
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| CN1985526B (en) | 2015-05-13 |
| CN200956648Y (en) | 2007-10-03 |
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