CN2870346Y - Device for supporting reinforced upstream chain soft switch-over operation - Google Patents
Device for supporting reinforced upstream chain soft switch-over operation Download PDFInfo
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- CN2870346Y CN2870346Y CNU2004201070889U CN200420107088U CN2870346Y CN 2870346 Y CN2870346 Y CN 2870346Y CN U2004201070889 U CNU2004201070889 U CN U2004201070889U CN 200420107088 U CN200420107088 U CN 200420107088U CN 2870346 Y CN2870346 Y CN 2870346Y
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Abstract
A method and apparatus for supporting an enhanced uplink soft handover (EU-SHO) operation for a wireless transmit/receive unit (WTRU). The apparatus may be a multi-cell wireless communication system including at least two EU-SHO Node-Bs and a radio network controller (RNC). The RNC includes a medium access control (MAC) entity that handles enhanced uplink dedicated channel (EU-DCH) functionalities. The RNC is configured according to a first architecture when an EU-SHO operation for the WTRU is not taking place, and the RNC is configured according to a second architecture when the WTRU is operating in an EU-SHO operation. According to the second architecture, the MAC entity of the RNC includes an ACK/NACK generator which generates signals indicating whether or not an EU transmission originating from the WTRU has been successfully received by the RNC, and an uplink scheduler for scheduling an EU transmission for the WTRU.
Description
Technical field
The utility model is relevant wireless communication system.More especially, the utility model is about supporting to strengthen up link soft handover (EU-SHO) method of operating and device by reorganization radio network controller (RNC) and Node B framework.
Background technology
Improve up link and contain, at present tested distribution 6 (R6) umts (UMTS) research project that is shown in of the method for output and transmission delay " the frequency division duplexing up link strengthens " in the third generation partner plan (3GPP) in the train of thought.
In order to reach these targets, expect that extensively Node B (base station) will bear scheduling and distribute the responsibility of uplink resource (actual channel) 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 uplink radio resources than radio network controller by short term basis.Similar approach is used in distribution 5 (R5) high-speed downlink packet access (HSDPA) in umts frequency division duplexing (FDD) and time division duplex (TDD) pattern.
Also imagine between the wireless transmitter/receiver unit (WTRU) and universal terrestrial access network (UTRAN) in the shared time section that some independent up links are processed over.This one of example be medium access control (MAC) layer mixed automatic repeat request (HARQ) or the only automatic repetitive requests of medium access control layer (ARQ) operation, 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 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 operation of high-speed downlink packet access in the similar down link, be need the universal terrestrial access network again the formation that produced according to the wireless transmitter/receiver unit radio link control entity of ranking function organize and be received data block.
Soft handover macroscopic diversity operation is to need the ul transmissions in each sub-district 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
The purpose of this utility model provides a kind of wireless transmitter/receiver unit of supporting and strengthens the device of up link operating in soft handover, contains output and transmission delay to improve up link; The transmission of can not achieving success in any Node B before in addition, this device can solve is finished group and can't be finished the problem of ordering transmission again.This device can be multi-cell wireless communication system, radio network controller, or be placed on integrated circuit (IC) in the radio network controller.Multi-cell wireless communication system comprises at least two and strengthens a up link soft handover Node B and a radio network controller.Radio network controller comprises handles first MAC entity of strengthening the up-link function.When wireless transmitter/receiver unit reinforcement up link operating in soft handover did not take place, radio network controller was to dispose according to first framework; When wireless transmitter/receiver unit operated in reinforcement up link operating in soft handover, radio network controller was to dispose according to second framework.According to second framework, first MAC entity of radio network controller is to comprise first approval/negative (ACK/NACK) generator, it can produce and indicate produce the signal whether the reinforcement ul transmissions from wireless transmitter/receiver unit has successfully been received by radio network controller, reach the first up link scheduler, be used for the reinforcement ul transmissions of scheduling wireless transmitter/receiver unit.
Each is strengthened up link soft handover Node B and comprises second MAC entity of handling reinforcement up-link function.Second MAC 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 wireless transmitter/receiver unit reinforcement up link operating in soft handover does not take place when, second MAC entity in the Node B that wireless transmitter/receiver unit is operated can be configured to comprise second approval/negative generator at present, whether it can transmit the sign generation and successfully be received by radio network controller from the signal of the reinforcement ul transmissions of wireless transmitter/receiver unit, reach the second up link scheduler, be used for the reinforcement ul transmissions of scheduling wireless transmitter/receiver unit.The first up link scheduler can be communicated by letter with each reinforcement up link soft handover Node B via strengthening the up link Frame Protocol.
When wireless transmitter/receiver unit operated in soft handover, second MAC entity of strengthening up link soft handover Node B place only comprised mixed automatic repeat request/automatic repetitive requests entity.
Adopted the technical solution of the utility model, can improve up link and contain, output and transmission delay; And the transmission of achieving success in any Node B is finished group and is finished ordering transmission again.
Description of drawings
Can be from following preferred embodiment explanation and accompanying drawing understood in detail the utility model more, wherein:
Fig. 1 shows according to first system configuration during the normal running of the present utility model (non-in soft handover);
Second system configuration when Fig. 2 display radio transmitter/receiver unit operates in reinforcement up link operating in soft handover according to the utility model;
Fig. 3 is the process chart that comprises the method step of the system configuration of implementing Fig. 1 and Fig. 2.
Embodiment
The utility model will illustrate with reference to the accompanying drawings that wherein spreading all over similar numeral in full is the similar assembly of representative.
After this, " wireless transmission receiving element " speech is to comprise but be not subject to subscriber equipment (UE), mobile radio station, 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 (CDMA 2000) and code division multiple access person, the utility model can further be applied to time division duplex, and frequency division duplexing and timesharing S-CDMA (TD-SCDMA) are applied to other wireless system but also can imagine.At CDMA2000, the utility model may be implemented on EV-DO (data are just only arranged) and EV-DV (just data and voice).
The utility model characteristic can be merged in integrated circuit or be configured in the circuit that comprises a plurality of interconnecting assemblies.
Among one embodiment, the utility model provides the distribution universal terrestrial access network medium access control architecture of strengthening up link to separate, comprise ranking function again, up link scheduling function, approval/negate to produce function and mixed automatic repeat request/automatic repetitive requests entity.Suitable universal terrestrial access network medium access control architecture has been arranged, and soft and direct-cut operation will effectively be supported, and the medium access control data loses and Radio Link control recovers and will be lowered.The utility model is worked out preferable medium access control architecture details and is proposed these requirements.
Moreover the utility model is worked out the distribution universal terrestrial access network medium access control architecture of strengthening up link and is separated.The utility model is also worked out the repetitive requests entity of the mixed automatic repeat request of implementing the Node B place/automatically, no matter and the wireless transmitter/receiver unit operation scheme all implement ranking function again in the radio network controller why.
In addition, the utility model is worked out the up link scheduling function of implementing Node B and radio network controller place.Yet at wireless transmitter/receiver unit, any time point all only has a up link scheduling function to be configured to it.Whether up link scheduling function is configured in Node B or radio network controller place, is to decide (whether soft handover) on the wireless transmitter/receiver unit operation scheme.
Important is that attention the utility model is also worked out approval/negative function that produces of implementing Node B and radio network controller place.Yet at wireless transmitter/receiver unit, any time point all only has an approval/negative function that produces to be configured to it.Approval/negate to produce function whether to be configured in Node B or radio network controller place is to decide (whether soft handover) on the wireless transmitter/receiver unit operation scheme.
Strengthen during the up link operating in soft handover, higher level is maintained at the active subset of strengthening uplink cell, and this is strengthened up-link is to be maintained in the soft handover macroscopic diversity status.The control of up link soft handover Node B is strengthened by difference in sub-district in these active subset.
According to the utility model, whether the multi-cell wireless communication system framework between first configuration and second configuration shifts is to take place to decide on strengthening the up link operating in soft handover.
Fig. 1 shows first system configuration 100 of the wireless communication system that comprises radio network controller 105 and Node B 110 during the normal running (non-in soft handover).Node B can be communicated by letter with wireless transmitter/receiver unit 115.Radio network controller 105 is configured to comprise first MAC entity 120.First MAC entity 120 in the radio network controller 105 can be handled and strengthen the up-link 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 to handle second MAC entity 135 of strengthening the up-link function, has the mixed automatic repeat request/repetitive requests entity 140, and up link scheduler 150 automatically of approval/negative generator 145.
The repetitive requests entity 140 of mixed automatic repeat request/automatically is that to be configured in Node B 110 be that a user handles the repetitive requests function of mixed automatic repeat request/automatically.Ranking function entity 125 is to be configured in radio network controller 105 to sort and be received data block at present again, and just Packet Data Unit (PDUs) is to support being passed to higher protocol level 130 in the formation.Up link scheduler 150 is to be configured in the reinforcement ul transmissions that Node B 110 is come scheduling wireless transmitter/receiver unit 115.Approval/negative generator 145 is to be configured in Node B 110 to notify success of wireless transmitter/receiver unit 115 ul transmissions or failure.As shown in Figure 1, approval/negate generator 145 is incorporated into Node B 110 in the normal running scheme mixed automatic repeat request/automatic repetitive requests entity 140.
Each mixed automatic repeat request/repetitive requests entity 245 is to handle mixed automatic repeat request/automatic repetitive requests function for a user automatically.Up link scheduler 230 in the MAC entity 215 is to communicate by letter in Node B 210 via strengthening up link Frame Protocol 250A...250N in radio network controller 205 places with each.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, strengthen during the up link operating in soft handover, if be received in the data block at any reinforcement up link soft handover Node B 210 places by decoding success, just data block is by Cyclic Redundancy Check, and then it will be transferred to radio network controller 205 via strengthening up link 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 be passed in the formation higher protocol level 235.Up link scheduler 230 in the radio network controller 205 is to be responsible for ul transmissions is strengthened in the wireless transmitter/receiver unit scheduling in the sub-district that is reinforced the 210 different person's controls of up link soft handover Node B.When radio network controller 205 from strengthen up link soft handover Node B 210 receive have the good circulation redundancy check by at least one duplicate of decoding success data block the time, the approval in the radio network controller 205/negate generator 225 can produce approval and transfer to wireless transmitter/receiver unit.Otherwise the determination data piece is not correctly received, and the approval in the radio network controller 205/negate generator 225 thereby can produce is negated to transfer to wireless transmitter/receiver unit.
Be received from the data block of strengthening up link soft handover Node B 210 different persons and can be combined and be organized in the formation to be passed to higher protocol level 235.The entity 220 that sorts again that is placed in the radio network controller 205 can make the processed Node B that is provided each Packet Data Unit of reception that is independent of of reinforcement up link medium access control Packet Data Unit successfully receive and correctly be passed to higher protocol level 235.Therefore, medium access control data and Radio Link control recovery is to be lowered.
By the up link scheduler of using in the radio network controller 205 230, be can be during the reinforcement up link operating in soft handover by other sub-district of strengthening 210 controls of up link soft handover Node B with resource and the reception of interference pattern by a ul transmissions of strengthening 210 schedulings of up link soft handover Node B.
Fig. 3 comprises enforcement to be shown in the system configuration 100 of Fig. 1 and Fig. 2 and processing 300 flow charts of 200 method step respectively.During the normal running, radio network controller 105 continues supervision and strengthens any indication (step 305) that the up link operating in soft handover is about to begin.Shown in the system configuration 100 of Fig. 1, during the normal running, just strengthen the up link operating in soft handover front and back take place, the present Node B 110 of wireless transmitter/receiver unit 115 is to be configured to make present Node B 110 to comprise approval/negative generator 145 and up link scheduler 150.Operating in soft handover is about to start from step 305 if radio network controller 105 detects the reinforcement up link, MAC entity 120 frameworks in the radio network controller 105 of Fig. 1 are to dispose according to MAC entity 215 frameworks in the radio network controller 205 of Fig. 2, and MAC entity 215 comprises approval/negative generator 225 and up link scheduler 230 (step 315) by this.After operating in soft handover is done, as be decided by step 320 person, approval in the MAC entity 215 in the radio network controller 105/negative generator 225 and up link scheduler 230 are be decomposed (steps 325), and strengthen during the up link operating in soft handover new node B 110 relevant and be configured to comprise approval/negative generator 145 and up link scheduler 150, as shown in Figure 1 with wireless transmitter/receiver unit 115.
Though the utility model shows and explanation that with reference to preferred embodiment is special skilled artisan only should be appreciated that otherwise deviates from above-mentioned the utility model category, all can do the change of various types and details.
Claims (2)
1. device of supporting to strengthen the up link operating in soft handover, described device is used for a wireless transmitter/receiver unit, it is characterized in that, and described device comprises:
At least two reinforcement up link soft handover Node B that communicate with described wireless transmitter/receiver unit by wireless communication link; And
Radio network controller, described radio network controller comprises first MAC entity, described first MAC entity is strengthened up link soft handover Node B and is communicated by letter by being based upon each the signal sendaisle between described at least two reinforcement up link soft handover Node B and the described radio network control entity with each, the up link designated lane is strengthened in described radio network control entity operation, wherein each described reinforcement up link soft handover Node B comprises second MAC entity, the up link designated lane is strengthened in described second MAC entity operation, and described second MAC entity comprises the repetitive requests entity of mixed automatic repeat request/automatically, and the repetitive requests entity of and described mixed automatic repeat request/is automatically strengthened the described signal sendaisle between up link soft handover Node B and described radio network controller and communicated by letter with described radio network controller by being based upon described two.
2. device as claimed in claim 1 is characterized in that, this of this radio network controller first MAC entity comprises:
First generator, its generation indicated described radio network controller whether successfully reception sources from the signal of the reinforcement ul transmissions of this wireless transmitter/receiver unit;
A plurality of and described generator electric coupling rearrange functional entity, and
The first up link scheduler, described up link scheduler is strengthened the described signal sendaisle between up link soft handover Node B and described radio network controller and is strengthened up link soft handover Node B and communicate by letter with described two by being based upon described two, to be used for the reinforcement ul transmissions of this wireless transmitter/receiver unit of scheduling.
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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2870346Y true CN2870346Y (en) | 2007-02-14 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
|---|---|---|---|
| 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 |
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| CN (2) | CN100566465C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101573926B (en) * | 2006-12-28 | 2014-06-04 | 交互数字技术公司 | Efficient uplink operation with high instantaneous data rates |
-
2004
- 2004-10-29 CN CNB2004800212194A patent/CN100566465C/en not_active Expired - Fee Related
- 2004-11-05 CN CNU2004201070889U patent/CN2870346Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101573926B (en) * | 2006-12-28 | 2014-06-04 | 交互数字技术公司 | Efficient uplink operation with high instantaneous data rates |
| US8824419B2 (en) | 2006-12-28 | 2014-09-02 | Interdigital Technology Corporation | Efficient uplink operation with high instantaneous data rates |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100566465C (en) | 2009-12-02 |
| CN1994001A (en) | 2007-07-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141105 Granted publication date: 20070214 |