CN1428948A - Upward signal transmitting and receiving method in high-speed data access system - Google Patents
Upward signal transmitting and receiving method in high-speed data access system Download PDFInfo
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- CN1428948A CN1428948A CN01144800A CN01144800A CN1428948A CN 1428948 A CN1428948 A CN 1428948A CN 01144800 A CN01144800 A CN 01144800A CN 01144800 A CN01144800 A CN 01144800A CN 1428948 A CN1428948 A CN 1428948A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The present invention discloses a method for sending and receiving up-going signaling in high-speed data access system. At sending end, said method does not directly send ACK or NACK information, and utilzies the frequency-spread code correspondent to different ACK or NACK used by TFR I information to make transmission; at the receiving end, respectively uses the different frequency-spread code to make incoherent demodulation for received TFRI signal, finally utilizes the comparison of coherent peak values to make judgement of that the used frequency-spread code is which one, and further can obtain correspondent ACK or NACK information, so that it can stop information transmission in ACK or NACK correspondent time slot, and can save transmitting power, and can move TFRI to front two time-slots to make transmission, can reduce base station processing time.
Description
Technical field
The present invention relates to the method for sending and receiving of the up feedback signaling of Wideband Code Division Multiple Access (WCDMA) (WCDMA) high-speed data access system.
Background technology
The utilization of WCDMA high-speed data packet insertion system mixes re-transmission (HARQ), Adaptive Modulation and Coding chain circuit self-adaptive methods such as (AMC) automatically, transmits the data of two-forty by down high speed sharing channel (HS-DSCH).In order to satisfy the requirement of above-mentioned technology, subscriber equipment (UE) need be to base station feedback Data Receiving result and down channel quality, be used for transmitting the content that comprises two parts in the uplink special physical channel (DPCCH-HS) of these information: a part is the HARQ feedback information, i.e. 1 bit acknowledgement or unacknowledged information (ACK/NACK), be used for representing whether this reception of UE is correct, ACK/NACK sends in a time slot after repeating 10 times.Another part information is the transformat and the resource indication information (TFRI of n bit, Transmit Format andResource Indicator), UE indicates the form of the packet that the base station sends next time with it, comprises modulation, coded system, packet size etc.).TFRI is by (20, n) encoder is weaved into 20 bits, sends in 2 time slots.In other words, ACK/NACK and TFRI are explicit transmissions, need to take a time slot and two time slots respectively and send energy.Because there is higher requirement in the HSDPA system to the delivery quality of up channel feedback information, for example the error rate of ACK or NACK directly corresponding the performances such as throughput of Radio Link, therefore, the DPCCH-HS channel emission power all is higher than general up channel, and this will produce bigger interference to other channels.Simultaneously, under soft changing state, UE also needs to increase new feedback information in the HSDPA system, and as the power control commands of descending shared control channel, this capacity to the DPCCH-HS channel has also had higher requirement.Therefore, not reducing under ACK/NACK and the TFRI transmission quality situation, reducing transmitting power as far as possible, improve the capacity of channel, is a very important problem.
Summary of the invention
The object of the present invention is to provide the method for sending and receiving of the up signaling of a kind of high-speed data access system, use this method can reduce the transmitting power of up signaling channel, minimizing can be saved transmission time slot simultaneously to the interference of other code channels, improves the service efficiency of system resource.
For achieving the above object, the method for sending and receiving of the up signaling of high-speed data access system provided by the invention comprises:
(1) system need to determine each affirmation or unacknowledged information (ACK or NACK) the pairing spreading code (OVSF) of feedback data reception, and each spreading code is corresponding with an ACK or NACK, and is different each other between the spreading code;
(2) subscriber equipment (UE) receives the data that the base station sends, determine the ACK or the NACK of needs feedback according to the quality of data that receives, use the spreading code of this ACK or NACK correspondence that the transport format information and the resource information (TFRI) of needs feedback are carried out the spread spectrum operation, obtain the TFRI signal;
(3) the TFRI signal is sent to the base station by up channel;
(4) base station receives the TFRI signal that UE sends, and all spreading codes that use step (1) to determine carry out non-coherent demodulation to this TFRI signal respectively, obtain TFRI and a plurality of noncoherent accumulation peak value;
(5) select the pairing ACK of spreading code of peak value maximum in the noncoherent accumulation peak value or the ACK or the NACK of the final reception of NACK conduct.
Described method also comprises: determine the ACK of needs feedback or progression and each ACK or the NACK of nack message, determine the spreading code of each ACK or NACK correspondence to make things convenient for system.
Use preceding two time slots when in the described step (3) the TFRI signal being sent by up channel, the 3rd time slot stops transmitting power.
Described step sends the TFRI signal in (3) by up channel, can also be the TFRI signal is modulated to 30 bits, reduces average transmit power and sends in three time slots.
Because the present invention does not directly send ACK or nack message, but by TFRI information is used different ACK or NACK correspondence the spreading code spread spectrum after send, at receiving terminal, with different spreading codes the TFRI signal that receives is carried out non-coherent demodulation respectively, be which spreading code by what relatively be concerned with peak value size judgement use at last, and then obtain corresponding ACK or nack message.Adopt such scheme, can in a time slot of ACK or NACK correspondence, any information can be do not sent, the transmission error code of ACK or NACK can be avoided like this, the transmitting power of directly having saved this time slot, and TFRI can be moved on to preceding two time slots and send, reduce the base station processing time; Also can revise the TFRI coded system, for example by original (20, n) coding change into (30, n), in 3 time slots, send, reduce average transmit power simultaneously, therefore, adopt method of the present invention can improve the efficient of up channel feedback information, promptly improve the quality of up channel feedback information, reduce the transmitting power of up signaling channel and to the interference of other code channels, and then reduce the system resource of up feedback consumes, improve the data-transmission efficiency of system.
Description of drawings
Fig. 1 is the embodiment flow chart of the inventive method;
Fig. 2 is up former feedback channel structural representation;
Fig. 3 is a uplink feedback information transmitting terminal example structure schematic diagram;
Fig. 4 is a uplink feedback information receiving terminal example structure schematic diagram;
Fig. 5 is the first kind of optional structural representation of uplink feedback channel that adopts this method;
Fig. 6 is the second kind of optional structural representation of uplink feedback channel that adopts this method.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Fig. 2 is the uplink feedback channel structural representation.As can be seen from Figure 2, uplink feedback channel comprises ACK or nack message and n bit TFRI information of 1 bit.ACK/NACK repeats 10 times, sends in a time slot, and TRFI is encoded into 20 bits, sends in 2 time slots.Owing to ACK or nack message just characterize the state of the quality of the Data Receiving of receiving terminal usually, as confirm state or non-affirmation state, if for making control more accurate, ACK or NACK are divided into a plurality of grades, then Fan Kui ACK or nack message are the state of accepting quality with the data of class letter, rather than the information of a quantification.Therefore, ACK or NACK can be appended in the TRFI information and feed back to the base station.Essence of the present invention is at transmitting terminal, and promptly UE end or travelling carriage select for use different spreading codes that TFRI is carried out spread spectrum according to ack/nack signal, receiving terminal, and promptly the base station obtains corresponding spreading code by non-coherent demodulation, and then obtains corresponding A CK/ANCK information.In this way, travelling carriage and base station can directly not send ACK/NACK information, thereby have reduced the transmitting power of up channel.
Fig. 1 is the embodiment flow chart of the inventive method.Implement the present invention according to Fig. 1, wherein step 1 and step 2 are finished in advance by system, and step 3 and step 4 are finished by UE, and step 5 and step 6 are finished by the base station.At first carry out step 1, system determines earlier to need the ACK of feedback or progression and each ACK or the NACK of nack message, determines the spreading code of each ACK or NACK correspondence to make things convenient for system.In the reality, the described ACK that need feed back or the progression of nack message are 2, comprise the affirmation information A CK and the unacknowledged information NACK of Data Receiving.But sometimes for to make the control of transfer of data more accurate, multi-level feedback need be set, especially unacknowledged information NACK.Then carry out step 2, determine affirmation or the pairing spreading code of unacknowledged information (ACK or NACK) that each needs feedback data to receive by system, make each spreading code corresponding with an ACK or NACK, different each other between the spreading code, but the number of spreading code will be subjected to the restriction of spreading factor number.Suppose that ACK or NACK have N, N different spreading code W used in N＞2 at this moment
1To W
NCorresponding each ACK or NACK.The corresponding relation of above-mentioned spreading code and spreading code and ACK or NACK can be handed down to UE by the base station by signaling method when Radio Link is set up.In step 3, subscriber equipment (UE) receives the data that the base station sends, determine the ACK or the NACK of needs feedback according to the quality of data that receives, use the ACK definite in the step 2 or the corresponding relation of NACK and spreading code, determine the spreading code of this ACK or NACK correspondence, transport format information and resource information (TFRI) to the needs feedback are carried out the spread spectrum operation, obtain the TFRI signal, in step 4 the TFRI signal is sent to the base station by up channel then, use preceding two time slots during transmission, during non-soft handover, the 3rd time slot stops transmitting power, during soft handover, this time slot can be used to launch newly-increased down control channel power control commands or other information, as shown in Figure 5.In step 5, the base station receives the TFRI signal that UE sends, all spreading codes that use step 1 to determine carry out non-coherent demodulation to this TFRI signal respectively, obtain TFRI information and a plurality of noncoherent accumulation peak values identical like this with the spreading code number, in step 6, from above-mentioned a plurality of noncoherent accumulation peak values, select the pairing ACK of spreading code or the final ACK or the nack message that receives of NACK conduct of peak value maximum at last.
It may be noted that in the above-mentioned steps 4 the TFRI signal is sent by up channel, also can be that the TFRI signal is modulated to 30 bits, reduces average transmit power and sends in three time slots, as shown in Figure 6.And the spreading code that the present invention adopts can be ovsf code, but and only limit to use ovsf code, also can use other spreading code.
Below by the ACK of needs feedback or the progression of nack message is 2, promptly only comprises the feedback of the affirmation information A CK and the unacknowledged information NACK of Data Receiving, and the present invention is gone on to say.With reference to figure 3.At transmitting terminal, it is the UE end, the TFRI information of 5 bits is encoded into the data of 20 bits, after sign map operation, with 2 different ovsf code W1, W2 the TFRI signal of 2 time slots is carried out spread spectrum, wherein W1 corresponding A CK, the corresponding NACK of W2, need to suppose the ACK information of feedback, then select for use W1 that the TFRI signal of 20 bits is carried out the spread spectrum operation, at last spread-spectrum signal is sent with the speed of 3.84Mcps.
At receiving terminal, with reference to figure 4, TFRI signal (3.84Mcps) is carried out non-coherent demodulation respectively with W1 and W2, obtain two noncoherent accumulation peak values, relatively these two peak value sizes are selected the information of the ACK/NACK of the big ovsf code correspondence of peak value as final reception.
Claims (6)
1, the method for sending and receiving of the up signaling of a kind of high-speed data access system comprises:
(1) system need to determine each affirmation or the pairing spreading code of unacknowledged information (ACK or NACK) of feedback data reception, and each spreading code is corresponding with an ACK or NACK, and is different each other between the spreading code;
(2) subscriber equipment (UE) receives the data that the base station sends, determine the ACK or the NACK of needs feedback according to the quality of data that receives, use the spreading code of this ACK or NACK correspondence that the transport format information and the resource information (TFRI) of needs feedback are carried out the spread spectrum operation, obtain the TFRI signal;
(3) the TFRI signal is sent to the base station by up channel;
(4) base station receives the TFRI signal that UE sends, and all spreading codes that use step (1) to determine carry out non-coherent demodulation to this TFRI signal respectively, obtain TFRI and a plurality of noncoherent accumulation peak value;
(5) select the pairing ACK of spreading code of peak value maximum in the noncoherent accumulation peak value or the ACK or the NACK of the final reception of NACK conduct.
2, the method for sending and receiving of the up signaling of high-speed data access system according to claim 1, it is characterized in that described method also comprises: determine the ACK of needs feedback or progression and each ACK or the NACK of nack message, determine the spreading code of each ACK or NACK correspondence to make things convenient for system.
3, the method for sending and receiving of the up signaling of high-speed data access system according to claim 1 and 2 is characterized in that the ACK of described needs feedback or the progression of nack message are 2, comprises the affirmation information A CK and the unacknowledged information NACK of Data Receiving.
4, the method for sending and receiving of the up signaling of high-speed data access system according to claim 1 uses preceding two time slots when it is characterized in that in the described step (3) the TFRI signal sent by up channel, and the 3rd time slot stops transmitting power.
5, the method for sending and receiving of the up signaling of high-speed data access system according to claim 1, it is characterized in that in the described step (3) the TFRI signal being sent by up channel, be that the TFRI signal is modulated to 30 bits, reduce average transmit power and in three time slots, send.
6, the method for sending and receiving of the up signaling of high-speed data access system according to claim 1 is characterized in that: described spreading code adopts ovsf code.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB011448008A CN1180558C (en) | 2001-12-27 | 2001-12-27 | Upward signal transmitting and receiving method in high-speed data access system |
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| CNB011448008A CN1180558C (en) | 2001-12-27 | 2001-12-27 | Upward signal transmitting and receiving method in high-speed data access system |
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| CN1428948A true CN1428948A (en) | 2003-07-09 |
| CN1180558C CN1180558C (en) | 2004-12-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102067659A (en) * | 2008-06-23 | 2011-05-18 | 夏普株式会社 | Mobile station device, communication system, and communication method |
| US8175110B2 (en) | 2005-04-18 | 2012-05-08 | Mitsubishi Electric Corporation | Sending station, receiving station, and radio communication method |
| CN101488797B (en) * | 2008-01-14 | 2013-01-09 | 华为技术有限公司 | ACK channel feedback method and apparatus |
| CN103684706A (en) * | 2007-08-08 | 2014-03-26 | 韩国电子通信研究院 | Method and apparatus for forming signals of base station allocated codes and terminal transmission uplink |
| US10686554B2 (en) | 2003-08-06 | 2020-06-16 | Optis Wireless Technology, Llc | Base station apparatus and radio communication method for receiving information indicative of channel quality from mobile station |
-
2001
- 2001-12-27 CN CNB011448008A patent/CN1180558C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10686554B2 (en) | 2003-08-06 | 2020-06-16 | Optis Wireless Technology, Llc | Base station apparatus and radio communication method for receiving information indicative of channel quality from mobile station |
| US11356195B2 (en) | 2003-08-06 | 2022-06-07 | Optis Wireless Technology, Llc | Base station apparatus and radio communication method for receiving information indicative of channel quality from mobile station |
| US8175110B2 (en) | 2005-04-18 | 2012-05-08 | Mitsubishi Electric Corporation | Sending station, receiving station, and radio communication method |
| CN101167285B (en) * | 2005-04-18 | 2013-01-16 | 三菱电机株式会社 | Wireless communication method |
| CN103684706A (en) * | 2007-08-08 | 2014-03-26 | 韩国电子通信研究院 | Method and apparatus for forming signals of base station allocated codes and terminal transmission uplink |
| US8724444B2 (en) | 2007-08-08 | 2014-05-13 | Electronics And Telecommunications Research Institute | Method and apparatus for forming signals in wireless communication systems |
| CN101953134B (en) * | 2007-08-08 | 2014-06-04 | 韩国电子通信研究院 | Method and apparatus for forming signals in wireless communication systems |
| CN103684706B (en) * | 2007-08-08 | 2017-08-25 | 韩国电子通信研究院 | The method and apparatus that base station assigned sequence, terminal transmit information |
| CN101488797B (en) * | 2008-01-14 | 2013-01-09 | 华为技术有限公司 | ACK channel feedback method and apparatus |
| CN102067659A (en) * | 2008-06-23 | 2011-05-18 | 夏普株式会社 | Mobile station device, communication system, and communication method |
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| CN1180558C (en) | 2004-12-15 |
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