CN101317204A - Wireless communication method and apparatus for detecting and decoding enhanced dedicated channel hybrid automatic repeat request indicator channel transmissions - Google Patents

Abstract

A wireless communication method and apparatus for detecting and decoding enhanced dedicated channel (E-DCH) hybrid automatic repeat request (H-ARQ) indicator channel (E-HICH) transmissions are disclosed. A wireless transmit/receive unit (WTRU) receives E-HICH transmissions and detects an H-ARQ indicator transmitted via the E-HICH by performing a binary hypothesis test. The WTRU then generates an acknowledgement (ACK) message or a non-acknowledgement (NACK) message based on the detected H-ARQ indicator. A reliability test may be further performed to improve performance, whereby the binary hypothesis test may be performed only if the reliability test is passed.

Description

Detect and decoding enhanced dedicated channel mixed automatic repeat request indicator channel transmission wireless communication method and device

Technical field

The present invention relates to a kind of wireless communication system.Especially, the present invention relates to a kind ofly be used for detecting and decoding enhancement type special channel (E-DCH) mixes automatic repeat requests (H-ARQ) designator passage (E-HICH) transmission wireless communication method and apparatus.

Background technology

Enhanced uplink (EU) is a principal character one of in third generation partner program (3GPP) frequency division duplexing (FDD) system.EU provides the peak data rate of 5.76Mbps.In order to support the EU operation, provide several downlink physical channels to come communicating control information.Wherein a kind of downlink physical channel is E-HICH.

Fig. 1 is a calcspar of supporting the existing wireless communications system 100 of EU.This system 100 comprises wireless transmission/receive unit (WTRU) 102, Node B (Node-B) 104 and radio network controller (RNC) 106.RNC 106 is by being the E-DCH operation that Node-B 104 and WTRU 102 configuring E-DCH parameters are controlled integral body, wherein for instance, described parameter can be an Initial Trans position standard, and maximum can allow the available channel resource of emissive power or every Node-B.Between WTRU 102 and Node-B 104, then set up E-DCH 108, E-DCH application-specific entity control channel (E-DPCCH), E-DCH and definitely permitted passage (E-AGCH) 112, E-DCH relative grant passage (E-RGCH) 114 and E-HICH 116, so that support the E-DCH operation.

For the E-DCH transmission, WTRU 102 will trigger schedule information (being also referred to as rate request) via E-DCH 108 and send to Node-B 104, and this triggering schedule information is used for the logic channel that the needs report is determined in radio resource control (RRC).Node-B 104 sends scheduling grant via E-AGCH 112 or E-RGCH 114 to WTRU 102.After having distributed the E-DCH radio resource for WTRU 102, WTRU 102 is via E-DCH 108 transmission of uplink (UL) data.In response to E-DCH or E-DPCCH transmission, Node-B 104 sends affirmative acknowledgement (ACK) or negative response (NACK) message that is used for the H-ARQ operation via E-HICH 116.

Concerning the quick transmission and re-transmission of E-DCH data, E-HICH 116 is very important passages.Thus, for the EU operation, be very important to E-HICH transmission execution reliable detection.The successful detection of E-HICH transmission and decipher will appreciable impact E-DCH data transmission performance, and can have influence on the performance of whole EU system.Therefore, the method and apparatus that needs a kind of effective detection and decoding E-HICH transmission.

Summary of the invention

The present invention relates to a kind of He Xie Code E-HICH transmission wireless communication method and apparatus that is used to detect.WTRU receives the E-HICH transmission, and detects the H-ARQ designator that transmits via E-HICH by carrying out dualism hypothesis test (binary hypothesis test).Then, WTRU produces ACK message or NACK message according to detected H-ARQ designator.In addition,, can improve performance, only under the situation of having passed through reliability testing, just can carry out the dualism hypothesis test thus by further execution reliability testing.

Description of drawings

Can understand the present invention in more detail from following description, these descriptions provide as an example, and in conjunction with graphic and by being understood, wherein:

Fig. 1 is the calcspar of existing wireless communications system;

Fig. 2 is the process flow diagram of the program that transmission detects and deciphers to E-HICH according to the present invention;

Fig. 3 is the process flow diagram of the program that the H-ARQ designator detected according to the present invention;

Fig. 4 is the process flow diagram that produces the program of ACK message or NACK message according to the present invention from detected H-ARQ designator; And

Fig. 5 is the calcspar of the illustration WTRU of configuration according to the present invention.

Embodiment

The term of hereinafter quoting " WTRU " is including, but not limited to the device of subscriber equipment (UE), action station, fixing or moving user unit, pager or any other type that can work in wireless environment.The peripheral device of any other type of the term of hereinafter quoting in addition, " Node-B " in base station, site controller, access point or the wireless environment.

Feature of the present invention both can have been introduced integrated circuit (IC), also can be configured in the circuit that comprises a plurality of interconnecting assemblies.

Fig. 2 is the process flow diagram of the program 200 that transmission detects and deciphers to E-HICH according to the present invention.In step 202, WTRU receives the E-HICH transmission from service radio link group (RLS), and it also might receive the E-HICH transmission from least one non-service radio link (RL) in addition.Service RLS is one group of cell element, and these cell elements have comprised at least one service E-DCH cell element, and WTRU can receive absolute permission from this cell element.WTRU can receive one or more relative grant from service RLS.If WTRU receives a plurality of relative grant from service RLS, the relative grant that receives so can be carried out soft combination, so that strengthen received signal noise ratio (SNR) and improve signal quality.WTRU only has a service RLS.Non-service RL belongs to the E-DCH active set and does not belong to the cell element of serving RLS, and WTRU can receive relative grant from this non-service RL.WTRU then can have zero, one or several non-service RL.In step 204, WTRU detects from each E-HICH transmission and decoding H-ARQ designator by carrying out the dualism hypothesis test, and this will explain hereinafter in detail.In step 206, WTRU produces ACK message or NACK message according to detected H-ARQ designator.

For service RLS and non-service RL, the detection of H-ARQ designator is all tested and implemented by carrying out dualism hypothesis.Selectively, here the test of reliability testing and dualism hypothesis can be combined and be implemented,, will be described in detail this hereinafter so that further improve performance.

The H-ARQ designator that is transmitted by service RLS or non-service RL can be ACK designator or NACK designator.H-ARQ designator from service RLS can utilize zero detection threshold to detect, and then can utilize the non-zero detection threshold to detect from the non-H-ARQ that serves RL.Selectively, if there is difference in the detection of the detection of ACK designator and NACK designator aspect performance requirement, so, can utilize the non-zero detection threshold to detect to detection from the H-ARQ designator of serving RLS.In this case, the H-ARQ designator from non-service RL is detected, then need to use asymmetric detection threshold.

Suppose that concerning l RLS, E-HICH has average energy E after through relevant and soft combination _lDo not losing under the general situation, supposing that first RLS (l=1 just) is service RLS, remaining RLS (l=2 just ..., L) then be non-service RL.For service RLS, ACK designator and NACK designator are respectively with amplitude

With

Send.For non-service RL, ACK designator and NACK designator are respectively with amplitude

With 0 transmission.

y ^(l)What represent is to be that l RLS carried out the soft designator (just soft sample) after being correlated with.Concerning the dualism hypothesis test that is used to detect ACK designator and NACK designator, the log-likelihood ratio (LLR) that is used for this test is expressed as follows:

${\mathrm{LLR}}^{\left(l\right)}=\ln \frac{P_r\left(y^{\left(l\right)}\right|H_1)}{P_r\left(y^{\left(l\right)}\right|H_0)}$ Equation (1)

H wherein ₀And H ₁Test NACK of expression hypothesis respectively and ACK.

Suppose that relevant variance afterwards is σ _n ²White Gaussian noise, the H-ARQ designator that is used to serve RLS so is detected as ACK designator or NACK designator as follows:

If ${\mathrm{LLR}}^{\left(l\right)}=\frac{2}{{\mathrm{\σ}}_n}{y}^{\left(l\right)}\sqrt{{\mathrm{\γ}}_l}\≥0$ (perhaps only be LLR ^(l)=y ^(l)〉=0), then is the ACK designator; And

Otherwise, be the NACK designator;

Wherein ${\mathrm{\γ}}_l({\mathrm{\γ}}_l=\frac{E_l}{{\mathrm{\σ}}_n^2})$ Expression be after relevant and soft combination, be used to serve the average SNR of the E-HICH of RLS (l=1 just).

The LLR that is used for the dualism hypothesis test of non-service RL is expressed as follows:

${\mathrm{LLR}}^{\left(l\right)}=\frac{1}{{\mathrm{\σ}}_n}{y}^{\left(l\right)}\sqrt{{\mathrm{\γ}}_l}-\frac{1}{2}{\mathrm{\γ}}_l$ Equation (2)

The H-ARQ designator that is used for non-service RL is detected as ACK designator or NACK designator as follows:

If ${\mathrm{LLR}}^{\left(l\right)}=\frac{1}{{\mathrm{\σ}}_n}{y}^{\left(l\right)}\sqrt{{\mathrm{\γ}}_l}-\frac{1}{2}{\mathrm{\γ}}_l\≥T^{\left(l\right)},$ It then is the ACK designator; And

Otherwise, be the NACK designator.

γ wherein ₁Expression be that (l RLS that is to say, l=2,3 carrying out the non-service RL that is used for after relevant ..., the average SNR that E-HICH had L).T ^(l)It is the detection threshold of l RLS.Concerning all non-service RL, T ^(l)Can be identical, perhaps, according to the design and the performance need that detect, described T ^(l)Between non-service RL, also difference can be arranged.

When having a plurality of measurements available, can carry out and use the H-ARQ designator of a plurality of measurement hypothesis test to detect.Suppose to have M measurement, y _m ^lExpression be to l RLS and m relevant output carried out be correlated with or the measurement that is used for E-HICH deciphered after soft designator (just soft sample).Equally, do not losing under the general situation, supposing that a RLS (l=1 just) is service RLS, remaining RLS (l=2 just ..., L) then be non-service RL.Be used to serve a plurality of measurements hypothesis test of ACK designator and the NACK designator of RLS for detection, its LLR is expressed as follows:

${\mathrm{LLR}}^{\left(l\right)}=\ln \frac{P_r(y_1^{\left(l\right)},y_2^{\left(l\right)},...,y_M^{\left(l\right)}|H_1)}{P_r(y_1^{\left(l\right)},y_2^{\left(l\right)},...,y_M^{\left(l\right)}|H_0)}$ Equation (3)

The H-ARQ designator that is used to serve RLS is to use the test of a plurality of measurements hypothesis and is detected as ACK designator or NACK designator, and this hypothesis test is as follows:

If ${\mathrm{LLR}}^{\left(l\right)}=\underset{m=1}{\overset{M}{\mathrm{\Σ}}}\left(\frac{2}{{\mathrm{\σ}}_n}{y}_m^{\left(l\right)}\sqrt{{\mathrm{\γ}}_l}\right)\≥0,$ It then is the ACK designator;

Otherwise, be the NACK designator.

The H-ARQ designator that is used for non-service RL then is to be detected as ACK designator or NACK designator as follows:

If ${\mathrm{LLR}}^{\left(l\right)}=\underset{m=1}{\overset{M}{\mathrm{\Σ}}}(\frac{1}{{\mathrm{\σ}}_n}{y}_m^{\left(l\right)}\sqrt{{\mathrm{\γ}}_l}-\frac{1}{2}{\mathrm{\γ}}_l)\≥T^{\left(l\right)},$ It then is the ACK designator;

Otherwise, be the NACK designator.

T ^(l)Be the detection threshold of l RLS, concerning all non-service RL, T ^(l)Can be identical, perhaps, according to the design and the performance need that detect, described T ^(l)Between non-service RL, also can be different.

Fig. 3 is the process flow diagram that detects the program 300 of H-ARQ designator according to the present invention.WTRU receives the E-HICH transmission (step 302) from service RLS and at least one non-service RL.Selection is from the E-HICH transmission (step 304) of a RLS.Then can carry out optional reliability testing then.In some cases, if satisfied performance need, so also can not carry out this reliability testing.For this reliability testing, the SNR of selected E-HICH transmission (through measuring or as calculated) compare with the SNR threshold values (step 306).If this SNR is not more than the SNR threshold values, reliability testing failure so, and handle 300 and will advance to step 308 to select the E-HICH transmission from next RLS.If this SNR is equal to or greater than the SNR threshold values, thinks that then the signal quality aspect that is received in of E-HICH transmission is reliably, and carry out the dualism hypothesis test.

Concerning the dualism hypothesis test, determine that at first selected E-HICH transmission is from service RLS or one or more non-service RL (step 310).If determine that in step 310 selected E-HICH transmission from service RLS, then compares LLR with zero detection threshold.If LLR is higher than this zero detection threshold,,, then detect NACK designator (step 318) for service RLS if LLR is not higher than zero detection threshold then for service ELS detects ACK designator (step 316).If determining selected E-HICH transmission in step 310 from non-service RL, then compares LLR (step 314) with the non-zero detection threshold.If LLR then detects ACK designator (step 316) for non-service RL greater than this detection threshold,, then detect NACK designator (step 318) for non-service RL if LLR is not more than this detection threshold.Selectively, the non-zero detection threshold can be used for serving RLS, and the asymmetric detection threshold between ACK and the NACK both can be used to serve RLS, also can be used for non-service RL.

Fig. 4 is in order to the process flow diagram of the program 400 that produces ACK message or NACK message according to the present invention.When having implemented grand diversity and merge, WTRU can receive a plurality of H-ARQ designators that come from service RLS and one or more non-service RL.H-ARQ designator from different RL is separate.In general, if WTRU detects at least one the ACK designator from any RL, WTRU produces ACK message so, if WTRU does not detect any ACK designator, WTRU produces NACK message so.The H-ARQ designator that is associated with the triggering schedule information then is an exception, and wherein this triggering schedule information is sent by WTRU, is used for from the permission of service E-DCH cell element request scheduling, and this point will be elaborated hereinafter.

The WTRU watch-keeping is from the H-ARQ designator (step 402) of service RLS and at least one non-service RL.If determine to detect any H-ARQ designator in step 404, WTRU determines detected H-ARQ designator whether be associated with described triggering schedule information (step 406) so.

If detected H-ARQ designator is not associated with triggering schedule information, WTRU further determines whether from service RLS or one or more non-service RL receives at least one ACK designator (step 412) so.If received at least one ACK designator, WTRU produces ACK message (step 422) so.If do not receive the ACK designator, WTRU produces NACK message (step 420) so.

Be associated with triggering schedule information if in step 406, determine detected H-ARQ designator, then further determine whether to receive at least one ACK designator (step 408) from service RLS.Concerning triggering schedule information, should send ACK designator or NACK designator to WTRU from service RLS, be success or failure so that show the reception of schedule information on service RLS.Owing to having only the service cell element just can send scheduling grant, therefore, between service RLS and one or more non-service RL, the difference of ACK/NACK designator can be come in response to triggering schedule information.If determine to receive at least one ACK designator from service RLS in step 408, WTRU can produce ACK message (step 418) for service RLS so.If in step 408, determine not receive the ACK designator, then determine whether to receive at least one ACK designator (step 410) from one or more non-service RL from service RLS.If receive the ACK designator, then be that one or more non-service RL produce ACK message (step 414) from non-service RL.If do not receive the ACK designator, then produce NACK message (step 416) from one or more non-service RL.

Non-service E-DCH RL can not be sent to the triggering schedule information that receives service E-DCH cell element, and absolute permission then sends to WTRU to respond described triggering schedule information from this service E-DCH cell element.If in response to the transmission that triggers schedule information, WTRU receives the ACK that is used to serve the E-DCH cell element, this shows that the service cell element scheduler in the service E-DCH cell element successfully receives the transmission that triggers schedule information so.For the data that trigger outside the schedule information, if at least one is arranged from service RLS or the ACK of one or more non-service RL, this is enough concerning data so, and this is because data are to handle in being higher than the core network of serving RLS.If in response to the transmission that triggers schedule information, WTRU receives the NACK that is used to serve E-DCH RLS, and the WTRU that is used for one or more non-service RL receives ACK, and this triggering schedule information so should retransfer.After having produced ACK or NACK message, program 400 is waited for next Transmission Time Interval (TTI) (step 424).

Fig. 5 is the calcspar of the illustration WTRU 500 of configuration according to the present invention.WTRU 500 comprises receiver 502, H-ARQ designator detecting unit 504, a plurality of H-ARQ program 506, H-ARQ process controller 508, measuring unit 510 and comparer 512.Receiver 502 receives the E-HICH transmission that comes from service RLS and non-service RL.H-ARQ designator detecting unit 504 is tested and is detected the H-ARQ designator that transmits via E-HICH by carrying out dualism hypothesis mentioned above.508 of H-ARQ process controllers are controlled H-ARQ program 506, and produce ACK or NACK message based on the H-ARQ designator that is detected.

H-ARQ designator detecting unit 504 comprises LLR computing unit 514 and comparer 516.514 pairs of LLR computing units calculate about the LLR of the condition probability of the ACK of E-HICH transmission and NACK.516 of comparers compare this LLR and detection threshold.If LLR is lower than detection threshold, H-ARQ process controller 508 produces NACK message so, if LLR is not less than detection threshold, then produces ACK message.The SNR of 510 couples of E-HICH of measuring unit measures, and comparer 512 can compare this SNR and SNR threshold values, so that the execution reliability testing.

Embodiment

1. one kind is used for detecting and decipher the method that E-HICH transmits at wireless communication system.

2. as embodiment 1 described method, may further comprise the steps: WTRU receives the E-HICH transmission, and this E-HICH transmission carries the H-ARQ designator.

3. as embodiment 2 described methods, may further comprise the steps: WTRU tests by the execution dualism hypothesis and detects the H-ARQ designator.

4. as embodiment 3 described methods, may further comprise the steps: WTRU based on the result of dualism hypothesis test to produce one of them of ACK message or NACK message.

5. as the described method of any one embodiment among the embodiment 3～4, wherein the dualism hypothesis test may further comprise the steps: transmit based on the E-HICH that receives and determine to detect the condition probability of ACK designator and the LLR of the ratio of the condition probability that detects the NACK designator.

6. as embodiment 5 described methods, may further comprise the steps: LLR and detection threshold are compared.

7. as embodiment 6 described methods, may further comprise the steps: if LLR is lower than this detection threshold, then detecting the H-ARQ designator is the NACK designator.

8. as the described method of any one embodiment among the embodiment 6～7, may further comprise the steps: if LLR is not less than this detection threshold, then detecting the H-ARQ designator is the ACK designator.

9. as the described method of any one embodiment among the embodiment 6～8, may further comprise the steps: produce a kind of in ACK message and the NACK message based on detected H-ARQ designator.

10. as the described method of any one embodiment among the embodiment 1～9, more may further comprise the steps: carry out reliability testing.

11., wherein only under by the situation of reliability testing, just carry out the dualism hypothesis test as embodiment 10 described methods.

12. as the described method of any one embodiment among the embodiment 10～11, wherein reliability testing may further comprise the steps: the SNR that measures E-HICH.

13. as embodiment 12 described methods, wherein reliability testing may further comprise the steps: this SNR and SNR threshold values are compared.

14. as embodiment 13 described methods, wherein reliability testing may further comprise the steps: if measured SNR exceeds the SNR threshold values, then declare by reliability testing.

15. as the described method of any one embodiment among the embodiment 2～14, wherein WTRU receives the E-HICH transmission from service RLS and at least one non-service RL.

16. as embodiment 15 described methods, the detection threshold that wherein is used to serve RLS is made as different with the detection threshold that is used at least one non-service RL.

17. as embodiment 15 described methods, the detection threshold that wherein is used to serve RLS is zero detection threshold.

18. as embodiment 15 described methods, the detection threshold that wherein is used to serve RLS is the non-zero detection threshold.

19. as the described method of any one embodiment among the embodiment 3～18, more may further comprise the steps: determine whether detected H-ARQ designator is associated with the triggering schedule information, wherein said schedule information is transmitted by WTRU, is used for from the permission of service E-DCH cell element request scheduling.

20.,, so only just can produce ACK message detecting under the situation that H-ARQ designator from service RLS is ACK if wherein the H-ARQ designator is associated with triggering schedule information as embodiment 19 described methods.

21. WTRU who is used for detecting and deciphering the E-HICH transmission at wireless communication system.

22., comprising as embodiment 21 described WTRU: receiver, be used to receive the E-HICH transmission, this E-HICH transmission carries the H-ARQ designator.

23. as embodiment 22 described WTRU, comprising: H-ARQ designator detecting unit is used for testing and bearing results by carrying out dualism hypothesis, so that detect the H-ARQ designator.

24. as embodiment 23 described WTRU, comprising: the H-ARQ process controller is used for producing according to the result of dualism hypothesis test a kind of message of ACK message and NACK message.

25. as the described WTRU of any one embodiment among the embodiment 23～24, wherein H-ARQ designator detecting unit comprises: the LLR computing unit is used for transmitting the LLR that calculates the condition probability that detects the ACK designator and the ratio of the condition probability that detects the NACK designator according to the E-HICH that receives.

26. as embodiment 25 described WTRU, wherein H-ARQ designator detecting unit comprises: first comparer, it is used for LLR and detection threshold are compared.

27. as the described WTRU of any one embodiment among the embodiment 24～26, if wherein LLR is lower than detection threshold, the H-ARQ process controller produces NACK message so, if LLR is not less than detection threshold, then produces ACK message.

28. as the described WTRU of any one embodiment among the embodiment 23～27, wherein H-ARQ designator detecting unit is configured to carry out reliability testing.

29., wherein only under by the situation of reliability testing, just carry out the dualism hypothesis test as embodiment 28 described WTRU.

30. as the described WTRU of any one embodiment among the embodiment 28～29, more comprise: measuring unit, it is used to measure the SNR of E-HICH.

31. as embodiment 30 described WTRU, comprising: second comparer, it is used for SNR and SNR threshold values are compared.

32., wherein only under measured SNR exceeds the situation of SNR threshold values, just carry out the dualism hypothesis test as embodiment 31 described WTRU.

33. as the described WTRU of any one embodiment among the embodiment 22～32, wherein receiver receives the E-HICH transmission from service RLS and at least one non-service RL.

34. as embodiment 33 described WTRU, the detection threshold that wherein is used to serve RLS is made as different with the detection threshold that is used at least one non-service RL.

35. as embodiment 33 described WTRU, the detection threshold that wherein is used to serve RLS is zero detection threshold.

36. as embodiment 33 described WTRU, the detection threshold that wherein is used to serve RLS is the non-zero detection threshold.

37. as the described WTRU of any one embodiment among the embodiment 24～36, wherein the H-ARQ program processor is configured to determine whether detected H-ARQ designator is associated with the triggering schedule information, wherein said schedule information is transmitted by WTRU, is used for from the permission of service E-DCH cell element request scheduling.

38.,, so only just can produce ACK message when the H-ARQ designator that is received from service RLS is ACK detecting if wherein the H-ARQ designator is associated with triggering schedule information as embodiment 37 described WTRU.

39. an IC, it comprises receiver, H-ARQ designator detecting unit and the H-ARQ process controller of the described WTRU of any one embodiment among the embodiment 24～38.

Though described inventive features and parts in a preferred embodiment with particular combinations, but under the further feature in not having preferred embodiment and the situation of parts, each feature or parts can use separately, in addition, these features also can be used with different array modes under the situation that has or do not have further feature of the present invention and parts with parts.

Claims (19)

1. one kind is detected and deciphers the method that enhancement type special channel mixes automatic repeat requests designator passage (E-HICH) transmission in wireless communication system, wherein this wireless communication system comprises the wireless transmission/receive unit (WTRU) of a support of enhanced uplink (EU), this WTRU handles by an automatic repeat requests of mixing (H-ARQ) and transmits EU transmission thus, and, in response to described EU transmission, one H-ARQ designator is sent to WTRU via enhancement mode designated lane (E-DCH) H-ARQ designator passage, and this method comprises:

(a) this WTRU receives the E-HICH transmission that carries a H-ARQ designator;

(b) this WTRU tests by the execution dualism hypothesis and produces a result, to detect this H-ARQ designator; And

(c) this WTRU produces wherein a kind of message in an affirmative acknowledgement (ACK) message and a negative response (NACK) message based on the result of this dualism hypothesis test.

2. method according to claim 1 is characterized in that, this dualism hypothesis test comprises:

Transmit according to the E-HICH that is received and to determine to detect the condition probability of an ACK designator and the log-likelihood ratio (LLR) of the ratio of the condition probability that detects a NACK designator;

This LLR and a detection threshold are compared;

If this LLR is lower than this detection threshold, then detecting the H-ARQ designator is a NACK designator; And

If this LLR is not less than this detection threshold, then detecting the H-ARQ designator is an ACK designator, produces wherein a kind of message in this ACK message and this NACK message based on detected H-ARQ designator thus.

3. method according to claim 2 is characterized in that, more comprises:

Carry out a reliability testing, only under by the situation of reliability testing, just carry out this dualism hypothesis test thus.

4. method according to claim 3 is characterized in that, this reliability testing comprises:

Measure the signal to noise ratio (snr) of E-HICH;

This SNR and a SNR threshold values are compared; And

If measured SNR surpasses this SNR threshold values, then declare by this reliability testing.

5. method according to claim 2 is characterized in that, this WTRU receives this E-HICH transmission from a service radio link group (RLS) and at least one non-service radio link (RL).

6. method according to claim 5 is characterized in that, the detection threshold that is used for this service RLS is made as different with the detection threshold that is used for this at least one non-service RL.

7. method according to claim 5 is characterized in that, the detection threshold that is used for this service RLS is a kind of zero detection threshold.

8. method according to claim 5 is characterized in that, the detection threshold that is used for this service RLS is a kind of non-zero detection threshold.

9. method according to claim 1 is characterized in that, more comprises:

Determine whether detected H-ARQ designator is associated with the triggering schedule information, wherein this schedule information is transmitted by this WTRU, be used for from a service E-DCH cell element request scheduling permission, thus, if this H-ARQ designator is associated with this triggering schedule information, then only just produce this ACK message detecting under the situation that a H-ARQ designator from a service radio link group (RLS) is an ACK.

10. one kind is detected the wireless transmission/receive unit (WTRU) that mixes automatic repeat requests designator passage (E-HICH) transmission with the decoding enhancement type special channel in wireless communication system, wherein this wireless communication system comprises the WTRU of a support of enhanced uplink (EU), this WTRU transmits EU transmission by mixing automatic repeat requests (H-ARQ) program thus, and, in response to described EU transmission, one H-ARQ designator is sent to WTRU via enhancement mode designated lane (E-DCH) H-ARQ designator passage (E-HICH), and this WTRU comprises:

One receiver is used to receive the E-HICH transmission that carries a H-ARQ designator;

One H-ARQ designator detecting unit is used for testing and producing a result by carrying out dualism hypothesis, to detect this H-ARQ designator; And

One H-ARQ process controller is used for producing according to the result of this dualism hypothesis test a kind of message of an affirmative acknowledgement (ACK) message and a negative response (NACK) message.

11. WTRU according to claim 10 is characterized in that, described H-ARQ designator detecting unit comprises:

One logarithm likelihood ratio (LLR) computing unit is used for transmitting the LLR that calculates the condition probability that detects an ACK designator and the ratio of the condition probability that detects a NACK designator according to received E-HICH; And

One first comparer is used for this LLR and a detection threshold are compared;

Thus, if this LLR is lower than detection threshold, then this H-ARQ process controller produces NACK message, if this LLR is not less than this detection threshold, then the H-ARQ process controller produces an ACK message.

12. WTRU according to claim 11 is characterized in that, this H-ARQ designator detecting unit is configured to carries out a reliability testing, only just carries out the dualism hypothesis test under by the situation of this reliability testing by this.

13. WTRU according to claim 12 is characterized in that, more comprises:

Measuring unit is used to measure one of this E-HICH signal to noise ratio (snr); And

One second comparer is used for this SNR and a SNR threshold values are compared, and by this, only just carries out this dualism hypothesis test under measured SNR exceeds the situation of this SNR threshold values.

14. WTRU according to claim 11 is characterized in that, this receiver receives the E-HICH transmission from a service radio link group (RLS) and at least one non-service radio link (RL).

15. WTRU according to claim 14 is characterized in that, the detection threshold that is used for this service RLS is made as different with the detection threshold that is used for this at least one non-service RL.

16. WTRU according to claim 14 is characterized in that, this detection threshold that is used to serve RLS is one zero detection threshold.

17. WTRU according to claim 14 is characterized in that, the detection threshold that is used to serve RLS is the non-zero detection threshold.

18. WTRU according to claim 10, it is characterized in that, this H-ARQ program processor is configured to determine whether detected H-ARQ designator is associated with the triggering schedule information, this schedule information is transmitted by this WTRU, to be used for from a service E-DCH cell element request one scheduling grant, if this H-ARQ designator is associated with this triggering schedule information, then only just produce ACK message when being an ACK detecting a H-ARQ designator that is received from a service RLS.

19. an integrated circuit (IC), it comprises receiver, H-ARQ designator detecting unit and H-ARQ process controller that WTRU according to claim 10 has.

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