CN100566465C - Have support of enhanced uplink operating in soft handover can let people the again wireless communications method and the device of framework - Google Patents
Have support of enhanced uplink operating in soft handover can let people the again wireless communications method and the device of framework Download PDFInfo
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- CN100566465C CN100566465C CNB2004800212194A CN200480021219A CN100566465C CN 100566465 C CN100566465 C CN 100566465C CN B2004800212194 A CNB2004800212194 A CN B2004800212194A CN 200480021219 A CN200480021219 A CN 200480021219A CN 100566465 C CN100566465 C CN 100566465C
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Abstract
A kind of method and device of supporting wireless transmission/receive unit enhanced uplink operating in soft handover.This device comprises at least two enhanced uplink soft handover Node B and a radio network controller for many cell wireless communication system.This radio network controller comprises the MAC entity of handling the enhanced uplink dedicated channel function.When not being when the enhanced uplink operating in soft handover of wireless transmission/receive unit is taking place, this radio network controller is to dispose according to first framework; When wireless transmission/receive unit operated in the enhanced uplink operating in soft handover, this radio network controller was to dispose according to second framework.According to second framework, the medium access control entity of radio network controller comprises affirmation/non-affirmation generator, it can produce indication and produce the signal whether enhanced uplink transmissions from wireless transmission/receive unit has successfully been received by radio network controller, reach the up link scheduler, be used for the enhanced uplink soft handoff transmission of scheduling wireless transmission/receive unit.
Description
Technical field
The relevant wireless communication system of the present invention.More especially, the present invention is relevant to framework radio network controller (RNC) and Node B are come support of enhanced uplink soft handover (EU-SHO) method of operating and device again.
Background technology
Improve up link and contain, the method for output and transmission delay is studied in the plan of the third generation partner under the 6th edition (R6) Universal Mobile Telecommunications System (UMTS) research project " fdd uplink enhancing " background (3GPP) at present.
In order to reach these targets, be contemplated that generally Node B (base station) will be responsible for scheduling and uplink resource (physical channel) is dispensed to the user.On the basis of short-term, even being radio network controller, this principle possesses thick comprehensive control, Node B can also be made more efficient decision and management cochain Radio Resource than radio network controller.Similar approach is used in the 5th edition (R5) high-speed downlink packet access (HSDPA) in Universal Mobile Telecommunications System Frequency Division Duplexing (FDD) (FDD) and time-division duplex (TDD) pattern.
Also imagining some independent cochains is processed between the wireless transmission/receive unit of sharing in the time section (WTRU) and general land access network (UTRAN).Wherein an example is medium access control (MAC) layer mixed automatic repeat request (HARQ) or the only automatic repetitive requests of media access control layer (ARQ) operation, and wherein each transmission may need different transmission numbers successfully to be received by the general land access network.In order to limit influence, be that the introduction that protocol layer in the expection medium access control should not be enhanced type up-link (EU-DCH) influences to system architecture.By a demand of this introduction is to be data in the formation that is passed to Radio Link control (RLC) protocol layer.Therefore, the high-speed downlink packet access operation in the similar down chain, general land access network ranking function again needs, and the formation that is produced with foundation wireless transmission/receive unit radio link control entity is organized and is received data block.
The grand diversity operation of soft handover is to need the ul transmissions 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 one Node B, so can't finish the successfully ordering again of transmission.
Summary of the invention
The present invention is relevant method and the device of supporting wireless transmission/receive unit enhanced uplink operating in soft handover.This device can be many cell wireless communication system, radio network controller, or be placed on integrated circuit (IC) in the radio network controller.Many cell wireless communication system comprise at least two enhanced uplink soft handover Node B and a radio network controller.Radio network controller comprises first medium access control entity of handling the enhanced uplink dedicated channel function.When not being when the enhanced uplink operating in soft handover of wireless transmission/receive unit is taking place, radio network controller is to dispose according to first framework; When wireless transmission/receive unit operated in the enhanced uplink operating in soft handover, radio network controller was to dispose according to second framework.According to second framework, first medium access control entity of radio network controller comprises first positive affirmation/non-affirmation (ACK/NACK) generator, it can produce indication and produce the signal whether enhanced uplink transmissions from wireless transmission/receive unit has successfully been received by radio network controller, reach the first up link scheduler, be used for the enhanced uplink transmissions of scheduling wireless transmission/receive unit.
Each enhanced uplink soft handover Node B comprises second medium access control entity of handling the enhanced uplink dedicated channel function.Second medium access control entity comprises the mixed automatic repeat request/automatic repetitive requests of communicating by letter with radio network controller via the individual signal transmitting channel.
When not being when the enhanced uplink operating in soft handover of wireless transmission/receive unit is taking place, second medium access control entity in the Node B that wireless transmission/receive unit is operated can be configured to comprise the second affirmation/non-affirmation generator at present, whether it can transmit the indication generation and successfully be received by radio network controller from the signal of the enhanced uplink transmissions of wireless transmission/receive unit, reach the second up link scheduler, be used for the enhanced uplink transmissions of scheduling wireless transmission/receive unit.First upper link scheduler can be communicated by letter with each enhanced uplink soft handover Node B via the enhanced uplink Frame Protocol.
When wireless transmission/receive unit operated in soft handover, second medium access control entity at enhanced uplink soft handover Node B place only comprised mixed automatic repeat request/automatic repetitive requests entity.
Description of drawings
Can be from following preferred embodiment explanation and more understood in detail the present invention of accompanying drawing, wherein:
Fig. 1 shows according to first system configuration during the normal running of the present invention (non-in soft handover);
Second system configuration when Fig. 2 display radio transmission unit operates in the enhanced uplink operating in soft handover according to the present invention;
Fig. 3 is the process chart that comprises the method step of the system configuration of implementing Fig. 1 and Fig. 2.
Embodiment
The present invention will illustrate with reference to the accompanying drawings, wherein spread all over same numeral in full and represent same components.
After this, " wireless transmission receiving element " speech comprises but is not subject to subscriber equipment (UE), travelling carriage, and fixing or moving user unit, pager maybe can operate on any other types of devices in the wireless environment.After this be called as " base station " speech and comprise but be not subject to Node B, site controller, other type in access point or the wireless environment connects Jie's device.
As be applied to Universal Mobile Telecommunications System, in CDMA2000 (CDMA 2000) and the code division multiple access, the present invention can further be applied to time division duplex, and Frequency Division Duplexing (FDD) and time-division S-CDMA (TD-SCDMA) are applied to other wireless system but also can imagine.At CDMA2000, the present invention may be implemented on EV-D0 (data are just only arranged) and EV-DV (just data and voice).
Characteristic of the present invention can be merged in integrated circuit or be configured in the circuit that comprises a plurality of interconnecting assemblies.
Among one embodiment, the invention provides the distribution general land access network medium access control architectural schemes of enhanced uplink, comprise ranking function again, up link scheduling function is confirmed/non-affirmation generation function and mixed automatic repeat request/automatic repetitive requests entity.Suitable general land access network medium access control framework has been arranged, and soft and direct-cut operation will effectively be supported, and medium access control data degradation and Radio Link control recover and will be lowered.The present invention works out preferable medium access control framework details and proposes these requirements.
Moreover the present invention works out the distribution general land access network medium access control architectural schemes of enhanced uplink.The present invention also works out the repetitive requests entity of the mixed automatic repeat request of implementing the Node B place/automatically, no matter and the wireless transmission/receive unit operation scheme all implement ranking function again in the radio network controller why.
In addition, the present invention works out the up link scheduling function of implementing Node B and radio network controller place.Yet,, all only have a up link scheduling function to be configured any time to it at wireless transmission/receive unit.Whether up link scheduling function is configured in Node B or radio network controller place, is to decide (whether soft handover) on the wireless transmission/receive unit operation scheme.
Important is to notice that the present invention also works out affirmation/non-affirmation of implementing Node B and radio network controller place and produces function.Yet,, all only have affirmation/non-affirmation to produce function and be configured any time to it at wireless transmission/receive unit.Confirm/non-affirmation produces function and whether is configured in Node B or radio network controller place, is to decide (whether soft handover) on the wireless transmission/receive unit operation scheme.
During the enhanced uplink operating in soft handover, higher level is kept the active subset of enhanced uplink cell, is to be maintained in the soft handover macro diversity status to this enhanced uplink dedicated channel.Cell in these active subset is controlled by different enhanced uplink soft handover Node B.
According to the present invention, whether the many cell wireless communication system framework between first configuration and second configuration shifts is to take place to decide on the enhanced uplink operating in soft handover.
Fig. 1 shows first system configuration 100 of the wireless communication system during the normal running (non-in soft handover), and this wireless communication system comprises radio network controller 105 and Node B 110.Node B can be communicated by letter with wireless transmission/receive unit 115.Radio network controller 105 is configured to comprise first medium access control entity 120.First medium access control entity 120 in the radio network controller 105 can be handled the enhanced uplink dedicated channel function, and comprises the one or more entities of ranking function again 125.Each again ranking function entity 125 be to communicate by letter with the higher protocol level 130 in the radio network controller 105 and comprise an associated buffer (no icon).Node B 110 is to be configured to comprise second medium access control entity 135 that can handle the enhanced uplink dedicated channel function, mixed automatic repeat request/repetitive requests entity 140, and up link scheduler 150 automatically with affirmation/non-affirmation generator 145.
Mixed automatic repeat request/automatic repetitive requests entity 140 is configured in Node B 110 and handles mixed automatic repeat request/automatic repetitive requests function for the user.Ranking function entity 125 is configured in radio network controller 105 and sorts and be received data block at present again, and just Packet Data Unit (PDUs) transmits to the formation of higher protocol level 130 supporting.Up link scheduler 150 is configured in the enhanced uplink transmissions that Node B 110 is come scheduling wireless transmission/receive unit 115.Affirmation/non-affirmation generator 145 is configured in Node B 110 and notifies success of wireless transmission/receive unit 115 ul transmissions or failure.As shown in Figure 1, in the normal running scheme, affirmation/non-affirmation generator 145 is merged in the mixed automatic repeat request/automatic repetitive requests entity 140 of Node B 110.
Ranking function entity 125 is not changed by Node B internal reinforcing type uplink service cell again, and just rigid switching influences.That is to say that the buffer of ordering again (no icon) of radio network controller need not be filled during Node B internal reinforcing type uplink service cell changes.Buffer is not filled because sort again, is not passed to Radio Link control outward so there is formation, and there is no Radio Link control recover (wireless transmission/receive unit side) by Node B internal reinforcing type uplink service cell change cause.Affirmation/non-affirmation and up link field data of scheduling information are to be transferred into wireless transmission/receive unit 115 via the signal transmission of quick layer.Therefore, delay is very low.
Fig. 2 shows second system configuration 200 of wireless communication system shown in Figure 1.When detecting wireless transmission/receive unit 115, radio network controller 105 will the transfer from first system configuration, 100 to second system configuration 200 take place when normal running is transferred to the enhanced uplink operating in soft handover.At least two (2) enhanced uplink soft handover Node B 210 (210A...210N) during second system configuration 200 comprises radio network controller 205 and operates in the enhanced uplink soft handover.Radio network controller 205 is configured to comprise first medium access control entity 215 that is placed on radio network controller 205 places.First medium access control entity 215 can be handled the enhanced uplink dedicated channel function, and comprises one or more entity 220 that sorts again, confirms/non-affirmation generator 225 and up link scheduler 230.Respectively ranking function entity 220 can be communicated by letter with the higher protocol level 235 in the radio network controller 205 again, and comprises associated buffer (no icon).Each Node B 210 is configured to comprise second medium access control entity 240 (240A...240N) and the mixed automatic repeat request/automatic repetitive requests entity 245 (245A...245N) of handling the dedicated channel function.
Each mixed automatic repeat request/repetitive requests entity 245 is handled mixed automatic repeat request/automatic repetitive requests function for the user automatically.Up link scheduler 230 in the medium access control entity 215 is to communicate by letter with each Node B 210 via enhanced uplink Frame Protocol 250A...250N in radio network controller 205 places.Mixed automatic repeat request/repetitive requests entity 240A...240N communicates by letter with radio network controller 105 via signal transmitting channel 255A...255N respectively automatically.
Still with reference to figure 2, during the enhanced uplink operating in soft handover, if be received in the data block at any enhanced uplink soft handover Node B 210 places by decoding success, just data block is by Cyclic Redundancy Check (CRC), and then it will be transferred to radio network controller 205 via enhanced uplink Frame Protocol 255A...255N.The entity of ranking function again 220 at radio network controller 205 places can be carried out ranking function to the data block that is correctly received again and support to transmit to the formation of higher protocol level 235.Up link scheduler 230 in the radio network controller 205 is to be responsible for the wireless transmission/receive unit in the cell that different person controlled in the enhanced uplink soft handover Node B 210 is come the scheduling enhanced uplink transmissions.When radio network controller 205 when enhanced uplink soft handover Node B 210 receives at least one duplicate of the data block of successfully being deciphered with good Cyclic Redundancy Check, the affirmation in the radio network controller 205/non-affirmation generator 225 can produce approval and transfer to wireless transmission/receive unit.Otherwise the determination data piece is not correctly received, the affirmation in the radio network controller 205/non-affirmation generator 225 thereby can produce to negate and transfer to wireless transmission/receive unit.
The data block that is received from different persons in the enhanced uplink soft handover Node B 210 can be combined and be organized in the formation to be passed to higher protocol level 235.Be placed on entities of ordering again 220 in the radio network controller 205 and can make that the enhanced uplink medium cut-in control grouping data unit is processed successfully to receive and correctly be passed to higher protocol level 235, this higher protocol level 235 is independent of provides the Node B that receives each Packet Data Unit.Therefore, medium access control data and Radio Link control recovery is to be lowered.
During the enhanced uplink operating in soft handover by the up link scheduler of using in the radio network controller 205 230, at the cell of being controlled by other enhanced uplink soft handover Node B 210, the ul transmissions of 210 schedulings of enhanced uplink soft handover Node B is acceptable with resource and interference pattern.
Fig. 3 is processing 300 flow charts that comprise the method step of implementation system configuration 100 and 200, and this system configuration 100 and 200 is shown in Fig. 1 and Fig. 2 respectively.During the normal running, radio network controller 105 continues any indication (step 305) that supervision enhanced uplink operating in soft handover is about to begin.Shown in the system configuration 100 of Fig. 1, during the normal running, before and after just the enhanced uplink operating in soft handover took place, the present Node B 110 of wireless transmission/receive unit 115 was configured to make present Node B 110 to comprise affirmation/non-affirmation generator 145 and up link scheduler 150.If radio network controller 105 detects the enhanced uplink operating in soft handover and is about to start from step 305, medium access control entity 120 frameworks in the radio network controller 105 of Fig. 1 are to dispose according to medium access control entity 215 frameworks in the radio network controller 205 of Fig. 2, and medium access control entity 215 comprises affirmation/non-affirmation generator 225 and up link scheduler 230 (step 315) whereby.After operating in soft handover is done, as be decided by step 320, affirmation in the medium access control entity 215 in the radio network controller 105/non-affirmation generator 225 and up link scheduler 230 are be decomposed (steps 325), and new node B 110 relevant with wireless transmission/receive unit 115 during the enhanced uplink operating in soft handover is configured to comprise affirmation/non-affirmation generator 145 and up link scheduler 150, as shown in Figure 1.
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 (2)
1. the method for a support of enhanced uplink operating in soft handover, this method comprises:
Detect the enhanced uplink operating in soft handover by radio network controller and be about to begin, this radio network controller comprises the medium access control entity of handling the enhanced uplink dedicated channel function;
Respond this detection, this medium access control entity of this radio network controller be configured to according to first framework:
Use affirmation/non-affirmation generator and produce the signal whether the indication enhanced uplink transmissions has successfully been received by this radio network controller; And
Use the up link scheduler, with the scheduling enhanced uplink transmissions; And
Respond the decision that this enhanced uplink operating in soft handover is done and dispose this up link scheduler and this affirmation/non-affirmation generator in this medium access control entity of this radio network controller according to second framework.
2. radio network controller that is used for the support of enhanced uplink operating in soft handover, this radio network controller is about to begin in order to detect the enhanced uplink operating in soft handover, and this radio network controller comprises:
Medium access control entity, it handles enhanced uplink dedicated channel function, wherein this medium access control entity response enhanced uplink operating in soft handover detection of being about to begin and being configured with following according to first framework:
Affirmation/non-affirmation generator is in order to produce the signal whether the indication enhanced uplink transmissions has successfully been received by this radio network controller; And
The up link scheduler is in order to the scheduling ul transmissions;
Wherein, this radio network controller is in order to determine this enhanced uplink operating in soft handover and be done and to dispose according to second framework at affirmation/non-affirmation generator and the operation of up link scheduler this medium access control entity of this radio network controller.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51769103P | 2003-11-05 | 2003-11-05 | |
| US60/517,691 | 2003-11-05 | ||
| US10/939,272 | 2004-09-10 |
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| Publication Number | Publication Date |
|---|---|
| CN1994001A CN1994001A (en) | 2007-07-04 |
| CN100566465C true CN100566465C (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004800212194A Expired - Fee Related CN100566465C (en) | 2003-11-05 | 2004-10-29 | Have support of enhanced uplink operating in soft handover can let people the again wireless communications method and the device of framework |
| CNU2004201070889U Expired - Lifetime CN2870346Y (en) | 2003-11-05 | 2004-11-05 | Device for supporting reinforced upstream chain soft switch-over operation |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004201070889U Expired - Lifetime CN2870346Y (en) | 2003-11-05 | 2004-11-05 | Device for supporting reinforced upstream chain soft switch-over operation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TW201251496A (en) * | 2006-12-28 | 2012-12-16 | Interdigital Tech Corp | Efficient uplink operation with high instantaneous data rates |
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- 2004-11-05 CN CNU2004201070889U patent/CN2870346Y/en not_active Expired - Lifetime
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| Publication number | Publication date |
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| CN1994001A (en) | 2007-07-04 |
| CN2870346Y (en) | 2007-02-14 |
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