CN101227717A - User equipment, base station and method for testing and presenting PUCCH transmission state - Google Patents

Abstract

The invention provides a representing method of PUCCH transmission condition, which comprises the following steps: judging the state of descending authorization message in PDCCH transmission, leading pilot frequency in CQI information to multiply a modulation symbol, setting the modulation symbol according to state and modulation mode, and sending CQI information which is modulated and piloted. The invention also provides a checking method of PUCCH transmission condition, a user apparatus and a base station. The invention can lead the scheduling property of the base station more optimized, which improves transmission efficiency of descending data, and guarantees the integral property of systems.

Description

The expression of PUCCH transmission state and detection method, base station, subscriber equipment

Technical field

The present invention relates to the communications field, in particular to a kind of method for expressing and detection method of Physical Uplink Control Channel transmission state, and base station and subscriber equipment.

Background technology

At present, at LTE (Long Term Evolution, Long Term Evolution) in the system, Physical Uplink Control Channel (Physical Uplink Control Channel, PUCCH) in the transmission message comprise ack/nack reply (Acknowledged/Non-acknowledged, ACK/NACK) message and channel quality the indication (Channel Quality Indicator, CQI) message, and dispatch request (Schedule Request, SR) message.

When Physical Uplink Control Channel transferring ACK/NACK message, the user is according to the position of the downstream grants information relevant with the downlink data that receives, obtain to send in the capable physically control channel positional information of ACK/NACK message, here the downstream grants information spinner will be meant with downlink data and receive relevant control signaling information, in Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) middle transmission.

In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art:

When descending authorization message loading error occurring, the user can not correctly find the data of base station transmits, also just can not send ACK/NACK message, and this moment, base station and unclear current state can not effectively be handled, and have influenced the performance of system.Therefore, need a kind of alarm method of design, make the base station know the state that the downstream grants message transmission is made mistakes.When user's transferring ACK/NACK message, can whether send by detecting ACK/NACK message pilot tone, know whether ACK/NACK message is arranged, thus, can judge whether the downstream grants message transmission makes mistakes.

But, when the user is transmitted CQI message and ACK/NACK message simultaneously, the base station just can not have or not by the detection pilot tone judges whether the downstream grants message transmission has made mistakes, because, pilot tone not only is used for demodulation ACK/NACK message in this structure, also be used for demodulation CQI message, if the user does not send pilot tone, the decoding performance of CQI data will reduce.

Summary of the invention

The present invention aims to provide a kind of method for expressing and detection method of PUCCH transmission state, and a kind of subscriber equipment and base station, can solve prior art and not send the problem that pilot tone is reported to the police and caused decoding performance to descend.

In an embodiment of the present invention, provide a kind of method for expressing of PUCCH transmission state, may further comprise the steps: judged the state of downstream grants information in the PDCCH transmission; Pilot tone in the CQI message be multiply by a modulation symbol, and modulation symbol is provided with according to state and modulation system; And the CQI message after the transmission modulated pilots.

In an embodiment of the present invention, also provide a kind of detection method of PUCCH transmission state, may further comprise the steps: received CQI message; Detect the modulation symbol that the pilot tone in the CQI message is taken advantage of; And judge the state of downstream grants information in the PDCCH transmission according to modulation symbol and modulation system thereof.

In an embodiment of the present invention, (UE UserEquipment), comprising: judge module is used for judging the state of downstream grants information in the PDCCH transmission also to provide a kind of subscriber equipment; Modulation module is used for the pilot tone of CQI message be multiply by a modulation symbol, and modulation symbol is provided with according to state and modulation system, wherein, modulation system is BPSK, and when decision state is CQI message and ACK/NACK message when sending together, it is first symbol that modulation symbol is set; And when decision state be that it is second symbol that modulation symbol is set when having only CQI message to send; Modulation system is QPSK, when decision state is that it is the 3rd symbol that modulation symbol is set when having only CQI message to send; When decision state is CQI message and ACK/NACK message when sending together, it is the 4th symbol that modulation symbol is set; When judging that CQI message and SR scheduling message send together, it is the 5th symbol that modulation symbol is set; And when judging that CQI message and ACK/NACK message and SR scheduling message send together, it is the 6th symbol that modulation symbol is set; And sending module, be used to send the CQI message after the modulated pilots.

In an embodiment of the present invention, also provide a kind of base station, having comprised: receiver module is used to receive CQI message; Detection module is used for detecting the modulation symbol that the pilot tone of CQI message is taken advantage of; And judge module, be used for judging the state of downstream grants information in the PDCCH transmission according to modulation symbol and modulation system thereof, wherein, modulation system is BPSK, when detecting modulation symbol and be first symbol, decision state is that CQI message and ACK/NACK message send together; And when detecting modulation symbol and be second symbol, decision state is to have only CQI message to send; Modulation system is QPSK, and when detecting modulation symbol and be the 3rd symbol, decision state is to have only CQI message to send; When decision state is CQI message and ACK/NACK message when sending together, detecting modulation symbol is the 4th symbol; When detecting modulation symbol and be the 5th symbol, judge that CQI message and SR scheduling message send together; And when detecting modulation symbol and be the 6th symbol, judge that CQI message and ACK/NACK message and SR scheduling message send together.

Method for expressing of the above embodiment of the present invention and detection method, and subscriber equipment and base station are because adopt modulator approach to represent the PUCCH transmission state, do not send the problem that pilot tone is reported to the police and caused decoding performance to descend so overcome prior art, and then reached and make the base station scheduling performance optimize more, improve the efficiency of transmission of downlink data, guaranteed the effect of the overall performance of system.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 shows the flow chart according to the method for expressing of the PUCCH transmission state of the embodiment of the invention;

Fig. 2 for according to the embodiment of the invention only send CQI message the time subframe structure a kind of schematic diagram;

Fig. 3 is a kind of schematic diagram of subframe structure during according to the transmission CQI of the embodiment of the invention and ACK/NACK message;

Fig. 4 is the another kind of schematic diagram of subframe structure during according to the transmission CQI of the embodiment of the invention and ACK/NACK message;

Fig. 5 shows the flow chart according to the detection method of the PUCCH transmission state of the embodiment of the invention;

Fig. 6 shows the block diagram according to the UE of the embodiment of the invention;

Fig. 7 shows the block diagram according to the base station of the embodiment of the invention.

Embodiment

Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.

Fig. 1 shows the flow chart according to the method for expressing of the PUCCH transmission state of the embodiment of the invention, may further comprise the steps:

Step S10 judges the state of downstream grants information in the PDCCH transmission;

Step S20 multiply by a modulation symbol to the pilot tone in the CQI message, and modulation symbol is provided with according to state and modulation system; And

Step S30, the CQI message after the transmission modulated pilots.

The method for expressing of this embodiment is that the CQI pilot frequency sequence be multiply by a modulation symbol, and the state of downstream grants information in transmission known by detecting the modulation symbol that the CQI pilot frequency sequence is taken advantage of in the base station.Because adopting modulator approach represents, do not send the problem that pilot tone is reported to the police and caused decoding performance to descend so overcome prior art, and then reached and make the base station scheduling performance optimize more, improved the efficiency of transmission of downlink data, guaranteed the effect of the overall performance of system.

Wherein, modulation system can be BPSK (Binary Phase Shift Keying, a bi-phase shift keying), also can be QPSK (Quaternary Phase Shift Keying, quadriphase PSK);

When modulation system was BPSK, expression CQI message and ACK/NACK message sent together, and had only CQI message to send two states.

Preferably, when modulation symbol adopts the BPSK modulation system, when decision state is CQI message and ACK/NACK message when sending together, it is first symbol that modulation symbol is set; And when decision state be that it is second symbol that modulation symbol is set when having only CQI message to send.

Concrete implication can followingly represent that first symbol is-1, and expression CQI message and ACK/NACK message send together, and second symbol is 1, and expression has only CQI message to send.

When modulation symbol adopts the QPSK modulation system, expression has only that CQI message sends, CQI message and ACK/NACK message sends together, CQI message and SR scheduling message send together, and CQI message and ACK/NACK message, SR scheduling message send four kinds of states together.

Preferably, described modulation symbol is the 3rd symbol, and expression has only CQI message to send; Preferably, when modulation system is QPSK, when decision state is that it is the 3rd symbol that modulation symbol is set when having only CQI message to send; When decision state is CQI message and ACK/NACK message when sending together, it is the 4th symbol that modulation symbol is set; When judging that CQI message and SR scheduling message send together, it is the 5th symbol that modulation symbol is set; And when judging that CQI message and ACK/NACK message and SR scheduling message send together, it is the 6th symbol that modulation symbol is set.

The implication of QPSK modulation symbol can followingly represent that the 3rd symbol is (1+i)/, and expression has only CQI message to send; The 4th symbol is (1-i)/, and expression CQI message and ACK/NACK message send together; The 5th symbol be (1+i)/, expression CQI message and SR scheduling message send together; The 6th symbol be (1-i)/, expression CQI message and ACK/NACK message and SR scheduling message send together.

Wherein, the pilot frequency sequence of being modulated can be all pilot frequency sequences in the subframe, also can be a pilot frequency sequence in two pilot frequency sequences comprising of each time slot.

Implement to describe in detail the inventive method below in conjunction with the contrast of the present invention and prior art:

With 3GPP LTE (bandwidth 5M) system is example, and LTE 5M bandwidth is up to contain 512 subcarriers altogether, and wherein available subcarrier is middle 300, and each Resource Block contains continuous 12 subcarriers, and then 5M bandwidth one has 25 Resource Block.

Accompanying drawing 2 is a kind of schematic diagram of subframe structure when only sending CQI message.Under the regular circulation prefix condition, pilot tone is positioned on second of each time slot and the penult OFDM symbol, and other symbols send the CQI data.

Accompanying drawing 3 is a kind of schematic diagram of subframe structure when sending CQI message and ACK/NACK message.Send CQI message and ACK/NACK message and carry out combined coding, under the regular circulation prefix condition, pilot tone is positioned on second of each time slot and the penult OFDM symbol, and other symbols send the data behind combined codings.All pilot frequency sequences be multiply by a BPSK modulation symbol-1, and expression CQI message and ACK/NACK message is transmit status simultaneously, and when value was 1 after the modulation symbol demodulation that take advantage of detecting on the pilot tone base station, downstream grants message transmission mistake can be known in the base station.

Accompanying drawing 4 is a kind of schematic diagram of subframe structure when sending CQI message and ACK/NACK message.Destroy the CQI message data of an OFDM symbol in each time slot (subframe), as transferring ACK/NACK message, under the regular circulation prefix condition, pilot tone is positioned on second of each time slot and the penult OFDM symbol, and other symbols send CQI message and ACK/NACK message datas.All pilot frequency sequences be multiply by a BPSK modulation symbol-1, and expression CQI message and ACK/NACK message is transmit status simultaneously, and when value was 1 after the modulation symbol demodulation that take advantage of detecting on the pilot tone base station, downstream grants message transmission mistake can be known in the base station.

Fig. 5 shows the flow chart according to the detection method of the PUCCH transmission state of the embodiment of the invention, may further comprise the steps:

Step S40 receives CQI message;

Step S50 detects the modulation symbol that the pilot tone in the CQI message is taken advantage of; And

Step S60 judges the state of downstream grants information in the PDCCH transmission according to modulation symbol and modulation system thereof.

Preferably, when modulation symbol adopted the BPSK modulation system, when detecting modulation symbol and be first symbol, decision state was that CQI message and ACK/NACK message send together; And when detecting modulation symbol and be second symbol, decision state is to have only CQI message to send.

Wherein, first symbol can be that-1, the second symbol can be 1.

Preferably, when modulation symbol adopted the QPSK modulation system, when detecting modulation symbol and be the 3rd symbol, decision state was to have only CQI message to send; When decision state is CQI message and ACK/NACK message when sending together, detecting modulation symbol is the 4th symbol; When detecting modulation symbol and be the 5th symbol, judge that CQI message and SR scheduling message send together; And when detecting modulation symbol and be the 6th symbol, judge that CQI message and ACK/NACK message and SR scheduling message send together.

Wherein, the 3rd symbol can be (1+i)/, and the 4th symbol is (1-i)/, the 5th symbol be (1+i)/, the 6th symbol be (1-i)/.

This detection method is because can detect the CQI message that adopts modulator approach to report to the police, do not send the problem that pilot tone is reported to the police and caused decoding performance to descend so overcome prior art, and then reached and make the base station scheduling performance optimize more, improve the efficiency of transmission of downlink data, guaranteed the effect of the overall performance of system.

Fig. 6 shows the block diagram according to the UE of the embodiment of the invention, comprising:

Judge module 10 is used for judging the state of downstream grants information in the PDCCH transmission;

Modulation module 20 is used for the pilot tone of CQI message be multiply by a modulation symbol, and modulation symbol is provided with according to state and modulation system, wherein, modulation system is BPSK, and when decision state is CQI message and ACK/NACK message when sending together, it is first symbol that modulation symbol is set; And when decision state be that it is second symbol that modulation symbol is set when having only CQI message to send; Modulation system is QPSK, when decision state is that it is the 3rd symbol that modulation symbol is set when having only CQI message to send; When decision state is CQI message and ACK/NACK message when sending together, it is the 4th symbol that modulation symbol is set; When judging that CQI message and SR scheduling message send together, it is the 5th symbol that modulation symbol is set; And when judging that CQI message and ACK/NACK message and SR scheduling message send together, it is the 6th symbol that modulation symbol is set; And

Sendingmodule 30 is used to send the CQI message after the modulated pilots.

This UE is because adopt modulator approach to report to the police, do not send the problem that pilot tone is reported to the police and caused decoding performance to descend so overcome prior art, and then reached and make the base station scheduling performance optimize more, improved the efficiency of transmission of downlink data, guaranteed the effect of the overall performance of system.

Fig. 7 shows the block diagram according to the base station of the embodiment of the invention, comprising:

Receiver module 40 is used to receive CQI message;

Detection module 50 is used for detecting the modulation symbol that the pilot tone of CQI message is taken advantage of; And

Judge module 60, be used for judging the state of downstream grants information in the PDCCH transmission according to modulation symbol and modulation system thereof, wherein, modulation system is BPSK, when detecting modulation symbol and be first symbol, decision state is that CQI message and ACK/NACK message send together; And when detecting modulation symbol and be second symbol, decision state is to have only CQI message to send; Modulation system is QPSK, and when detecting modulation symbol and be the 3rd symbol, decision state is to have only CQI message to send; When decision state is CQI message and ACK/NACK message when sending together, detecting modulation symbol is the 4th symbol; When detecting modulation symbol and be the 5th symbol, judge that CQI message and SR scheduling message send together; And when detecting modulation symbol and be the 6th symbol, judge that CQI message and ACK/NACK message and SR scheduling message send together.

The base station of this embodiment is because can detect the CQI message that adopts modulator approach to report to the police, do not send the problem that pilot tone is reported to the police and caused decoding performance to descend so overcome prior art, and then reached and make the base station scheduling performance optimize more, improve the efficiency of transmission of downlink data, guaranteed the effect of the overall performance of system.

As can be seen from the above description, when the user sent out CQI message and ACK/NACK message simultaneously, the state of makeing mistakes in the downstream grants transmission can be known in the base station in the above embodiment of the present invention.

Therefore, when the above embodiment of the present invention had realized sending at the same time CQI message and ACK/NACK message, the user be multiply by a modulation symbol to the pilot frequency sequence that sends, and user's transmit status is known by detecting the value of modulation symbol on the pilot tone in the base station.The above embodiment of the present invention can improve the efficiency of transmission of downlink data so that the base station scheduling performance is optimized more, has guaranteed the overall performance of system.

Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (12)

1. the method for expressing of a Physical Uplink Control Channel transmission state is characterized in that, may further comprise the steps:

Judge the state of downstream grants information in the Physical Downlink Control Channel transmission;

Pilot tone in the channel quality Indication message be multiply by a modulation symbol, and described modulation symbol is provided with according to described state and modulation system; And

Described channel quality Indication message after the described pilot tone of transmission modulation.

2. method for expressing according to claim 1 is characterized in that, described modulation symbol is provided with specifically according to modulation system and described state and comprises:

Described modulation system is BPSK,

When judging that described state is channel quality Indication message and ACK/NACK message when sending together, it is first symbol that described modulation symbol is set; And

When judging that described state is that it is second symbol that described modulation symbol is set when having only the channel quality Indication message to send.

3. method for expressing according to claim 2 is characterized in that, described first symbol is-1, and described second symbol is 1.

4. method for expressing according to claim 1 is characterized in that, described modulation symbol is provided with specifically according to modulation system and described state and comprises:

Described modulation system is QPSK,

When judging that described state is that it is the 3rd symbol that described modulation symbol is set when having only the channel quality Indication message to send;

When judging that described state is channel quality Indication message and ACK/NACK message when sending together, it is the 4th symbol that described modulation symbol is set;

When judging that channel quality Indication message and SR scheduling message send together, it is the 5th symbol that described modulation symbol is set; And

When judging that channel quality Indication message and ACK/NACK message and SR scheduling message send together, it is the 6th symbol that described modulation symbol is set.

5. method for expressing according to claim 4 is characterized in that, described the 3rd symbol is (1+i)/, and described the 4th symbol is (1-i)/, described the 5th symbol be (1+i)/, described the 6th symbol be (1-i)/.

6. the detection method of a Physical Uplink Control Channel transmission state is characterized in that, may further comprise the steps:

The receive channel quality indication message;

Detect the modulation symbol that the pilot tone in the described channel quality Indication message is taken advantage of; And

Judge the state of downstream grants information in the Physical Downlink Control Channel transmission according to described modulation symbol and modulation system thereof.

7. detection method according to claim 6 is characterized in that, judges that according to described modulation symbol and modulation system thereof the state in the capable physically control channel transmission of downstream grants information specifically comprises:

Described modulation system is BPSK,

When detecting described modulation symbol and be first symbol, judge that described state is that channel quality Indication message and ACK/NACK message send together; And

When detecting described modulation symbol and be second symbol, judge that described state is to have only the channel quality Indication message to send.

8. detection method according to claim 7 is characterized in that, described first symbol is-1, and described second symbol is 1.

9. detection method according to claim 6 is characterized in that, specifically comprises according to the described state that detects in modulation symbol and the capable physically control channel transmission of modulation system judgement downstream grants information thereof:

Described modulation system is QPSK,

When detecting described modulation symbol and be the 3rd symbol, judge that described state is to have only the channel quality Indication message to send;

When judging that described state is channel quality Indication message and ACK/NACK message when sending together, detecting described modulation symbol is the 4th symbol;

When detecting described modulation symbol and be the 5th symbol, judge that channel quality Indication message and SR scheduling message send together; And

When detecting described modulation symbol and be the 6th symbol, judge that channel quality Indication message and ACK/NACK message and SR scheduling message send together.

10. detection method according to claim 9 is characterized in that, described the 3rd symbol is (1+i)/, and described the 4th symbol is (1-i)/, described the 5th symbol be (1+i)/, described the 6th symbol be (1-i)/.

11. a subscriber equipment is characterized in that, comprising:

Judge module is used for judging the state of downstream grants information in the Physical Downlink Control Channel transmission;

Modulation module is used for the pilot tone of channel quality Indication message be multiply by a modulation symbol, and described modulation symbol is provided with according to described state and modulation system, wherein,

Described modulation system is BPSK,

When judging that described state is channel quality Indication message and ACK/NACK message when sending together, it is first symbol that described modulation symbol is set; And

When judging that described state is that it is second symbol that described modulation symbol is set when having only the channel quality Indication message to send;

Described modulation system is QPSK,

When judging that described state is that it is the 3rd symbol that described modulation symbol is set when having only the channel quality Indication message to send;

When judging that described state is channel quality Indication message and ACK/NACK message when sending together, it is the 4th symbol that described modulation symbol is set;

When judging that channel quality Indication message and SR scheduling message send together, it is the 5th symbol that described modulation symbol is set; And

When judging that channel quality Indication message and ACK/NACK message and SR scheduling message send together, it is the 6th symbol that described modulation symbol is set; And

Sending module is used to send the described channel quality Indication message after the described pilot tone of modulation.

12. a base station is characterized in that, comprising:

Receiver module is used for the receive channel quality indication message;

Detection module is used for detecting the modulation symbol that the pilot tone of described channel quality Indication message is taken advantage of; And

Judge module is used for judging the state of downstream grants information in the Physical Downlink Control Channel transmission according to described modulation symbol and modulation system thereof, wherein,

Described modulation system is BPSK,

When detecting described modulation symbol and be first symbol, judge that described state is that channel quality Indication message and ACK/NACK message send together; And

When detecting described modulation symbol and be second symbol, judge that described state is to have only the channel quality Indication message to send;

Described modulation system is QPSK,

When detecting described modulation symbol and be the 3rd symbol, judge that described state is to have only the channel quality Indication message to send;

When judging that described state is channel quality Indication message and ACK/NACK message when sending together, detecting described modulation symbol is the 4th symbol;

When detecting described modulation symbol and be the 5th symbol, judge that channel quality Indication message and SR scheduling message send together; And

When detecting described modulation symbol and be the 6th symbol, judge that channel quality Indication message and ACK/NACK message and SR scheduling message send together.

Images