Radio transmission device and radio transmission method

FIELD: information technology.

SUBSTANCE: for the second symbol and the sixth symbol of the ACK/NACK signal which are multiplexed by RS of CQI, (+, +) or (-, -) is applied to a partial sequence of the Walsh sequence. For RS of CQI transmitted from a mobile station, + is added as an RS phase of the second symbol and - is added as an RS phase of the sixth symbol. A base station (100) receives multiplexed signals of ACK/NACK signals and CQI signals transmitted from a plurality of mobile stations. An RS synthesis unit (119) performs synthesis by aligning the RS phase of CQI.

EFFECT: improved CQI reception performance even when a delay is caused in a propagation path, a transmission timing error is caused, or residual interference is generated between cyclic shift amounts of different ZC sequences.

9 cl,17 dwg

 

The technical field

The present invention relates to a radio device and method of radio.

The level of technology

Mobile communication uses ARQ (automatic request for repetition) to the data downlink from the base station device of a wireless communication (hereinafter abbreviated used as a "base station") to a mobile device of a wireless station (hereinafter abbreviated used as a "mobile station"). That is, the mobile station returns a signal ACK/NACK (acknowledgement/negative acknowledgement)indicating the result of the error detection data downlink, at base station. The mobile station checks the CRC (control cyclic redundancy code) data downlink, and, if CRC=OK (i.e. no errors), returns ACK to the base station or, if CRC=NG (that is, error)returns a NACK (negative acknowledgement) to the base station. This signal is the ACK/NACK is transmitted to the base station using the control channel uplink communication, such as PUCCH (physical control channel uplink communication).

In addition, the base station transmits control information for the message of the resource allocation data downlink to the mobile station. Acupressue information is transmitted to the mobile station using the control channel downlink, such as CCH L1/L2 (control channels L1/L2). Each CCH L1/L2 occupies one or many of the CCE (elements of the control channel). In the case where one CCH L1/L2 takes a lot CCE, one CCH L1/L2 takes many consecutive CCE. According to the number of CCE required for communication of control information, the base station allocates one of the many CCH L1/L2 of each mobile station and displays the control information in the physical resources, associative associated with a CCE occupied by each CCH L1/L2, and transmits the control information.

In addition to associative link to CCE's and PUCCH for efficient use of downlink resources communication are investigated. According to this Association, each mobile station can select the number of PUCCH to be used for transmission of ACK/NACK with each mobile station, based on CCE, associate associated with physical resources, which are displayed such control information for that mobile station.

In addition, as shown in figure 1, for code multiplexing multiple signals ACK/NACK from multiple mobile stations by coding extension of the spectrum is investigated using ZC sequences (Sadova-Chu) and Walsh sequences (see non-patent document 1). Note that the length of the sequence of pure succession is eljnosti ZC is a Prime number, but because psevdopolojitelnaya ZC with the sequence length of 12 is formed by a cyclic extension part of the ZC sequence with a sequence length 11. Also note that psevdopolojitelnaya ZC below will also be specified by reference as "the ZC sequence" for ease of explanation. Figure 1 (W0, W1, W2, W3) is a Walsh sequence with a sequence length of 4. As shown in figure 1, the mobile station first performs the first encoding a broader spectrum of the ACK or NACK symbol SC-FDMA using the ZC sequence (having a sequence length of 12) in the frequency domain.

Then the ACK/NACK after the first coding extension of the spectrum is subjected to inverse FFT (IFFT inverse fast Fourier transform) in accordance with W0for W3. The ACK/NACK coded with the extension of the spectrum using a ZC sequence with a sequence length of 12 in the frequency domain, is transformed into a ZC sequence with a sequence length of 12 in the time domain by the inverse FFT. Then, the signal after the inverse FFT is additionally subjected to a second coding extension of the spectrum using a Walsh sequence (having a sequence length of 4). That is, one signal AC/NACK appears over four symbols SC-FDMA (multiple access frequency division channels on a single carrier). Similarly, other mobile station to encode a broader spectrum of the signals ACK/NACK using ZC sequences and Walsh sequences.

Note that different mobile stations use the ZC sequence with different values of cyclic shift in the time domain or different Walsh sequences. Here, the sequence length of the ZC sequence in the time domain has a value of 12, so you can use twelve ZC sequences with cyclic shift values from 0 to 11, formed from the same ZC sequence. In addition, the length of the sequence in the sequence of Walsh has a value of 4, so you can use four different sequences of Walsh. Consequently, it is possible to implement a code multiplexing signals ACK/NACK with a maximum of 48 (124) mobile stations in an ideal communication environment.

The signals ACK/NACK with other mobile stations are encoded with the extension of the spectrum using ZC sequences of different cyclic shift values or different Walsh sequences, so that the base station can separate the signals ACK/NACK from the mobile stations, performing decoding, inverse coding extension of the spectrum, using a Walsh sequence and correlation processing follower of the spines ZC. In addition, as shown in figure 1, block codes coding extension of the spectrum with the sequence length of 3 is used for an RS (reference signal). That is, RS with different mobile stations are code-multiplexed using the second coding extension of the spectrum of sequences with a sequence length of 3. By this means RS components passed through three characters of SC-FDMA.

Here the mutual correlation between ZC sequences of different cyclic shift values that are generated from the same ZC sequence, almost has a value of 0. Therefore, in an ideal communication environment, as shown in figure 2, many signals ACK/NACK subjected to code-multiplexed using ZC sequences of different cyclic shift values (with values of cyclic shift from 0 to 11)can be separated in the time domain by correlation processing at the base station without intersymbol interference.

However, due to various influences, such as lag time binding transmission to mobile stations, wave delay due to multipath propagation and frequency deviation, many signals ACK/NACK from multiple mobile stations do not always arrive at the base station at the same time. For example, as shown in Fi is .3, in the case where the temporal reference of the transmission of ACK/NACK coded with the extension of the spectrum using a ZC sequence with a value of the cyclic shift 0, delayed on the correct timing of the transfer, the correlation peak of the ZC sequence with a value of the cyclic shift 0 appears in the window of detection for ZC sequence with the amount of cyclic shift of 1. In addition, as shown in figure 4, in the case where the ACK/NACK coded with the extension of the spectrum using a ZC sequence with a value of the cyclic shift 0, creates a wave of delay, interference caused this wave delay, disperse, and will appear in the window of detection for ZC sequence with the amount of cyclic shift of 1. That is, in these cases, a ZC sequence with a value of the cyclic shift of 0 creates interference with the ZC sequence with the amount of cyclic shift of 1. So in these cases the performance of the separation signal ACK/NACK coded with the extension of the spectrum using a ZC sequence with a value of the cyclic shift 0, and ACK/NACK coded with the extension of the spectrum using a ZC sequence with the amount of cyclic shift of 1, deteriorate. That is, if you are using the ZC sequence of consecutive values cyclizes is on shift, there is a possibility that deteriorate the performance of the signal separation ACK/NACK. To be more precise, although there is a possibility that interference due to backorder the temporal reference of transmission occur together with interference from the value of the cyclic shift of 1 in the amount of cyclic shift 0 and interference on the value of the cyclic shift 0 by the amount of cyclic shift of 1, as shown in the figure, the influence of wave delay interference only on the value of cyclic shift 0 by the amount of cyclic shift of 1.

Therefore, traditionally, in the case where many signals ACK/NACK are code-multiplexed by the coding extension of the spectrum using ZC sequences, sufficient difference values of cyclic shift (that is, the cyclic shift intervals) are provided between ZC sequences to prevent intersymbol interference from arising between ZC sequences. For example, assuming that the difference in the magnitude of cyclic shift between the ZC sequence has a value of 2, a ZC sequence with six values of cyclic shift 0, 2, 4, 6, 8 and 10 of the twelve cyclic shift values from 0 to 11 are used for the first coding extension of the spectrum of the signals ACK/NACK. Therefore, in the case where the signals ACK/NACK are WTO the WMD coding extension of the spectrum using Walsh sequences with a sequence length of 4, you can implement the code-multiplexed signals ACK/NACK with a maximum of 24 (64) mobile stations. However, there are only three configurations of RS phases, and therefore the signals ACK/NACK only 18 mobile stations can actually multiplicious.

Non-patent document 1: "Multiplexing capability of CQIs and ACK/NACKs form different UEs" 3GPP TSG RAN WG1 Meeting #49, R1-072315, Kobe, Japan, May 7-11, 2007 ("the Ability of multiplexing CQI and ACK/NACK with different UE", conference #49, RAN WG1, TSG 3GPP, R1-072315, Kobe, Japan, 7-11 may 2007).

Disclosure of invention

Problems that must be solved by the invention

Incidentally, in the PUCCH in LTE 3GPP multiplexed not only the above signals ACK/NACK, but also signals CQI (quality indicator channel). While the ACK/NACK is one symbol of information, as shown in figure 1, the CQI signal is five characters of information. As shown in figure 5, the mobile station encodes a broader spectrum of the CQI signal using a ZC sequence with a sequence length of 12 and the value of the cyclic shift P and performs inverse FFT encoded with expansion of the range of the CQI signal, and transmits the CQI signal. Thus, the Walsh sequence is not applicable to the CQI signals, and therefore the sequence of Walsh may not be used to separate ACK/NACK and the CQI signal. In this case, through the use of sequence is of linesta ZC for decoding, reverse coding extension of the spectrum of the signal ACK/NACK and CQI signal encoded with the extension of the spectrum using ZC sequences are associated with different cyclic shifts, the base station may divide the signal ACK/NACK and the CQI signal with a small intersymbol interference.

However, although in an ideal communication environment, the base station may divide the signal ACK/NACK and the CQI signal using ZC sequences may be cases, for example, depending on the delay in the channels, as described above, where the orthogonality of the sequences of cyclic shift is broken, and the CQI signal subjected to interference from signal of ACK/NACK. In addition, when decoding, inverse coding extension of the spectrum is performed using ZC sequences to separate CQI signal from the ACK/NACK remain small intersymbol interference from a signal ACK/NACK. As shown in figure 1 and figure 5, the ACK/NACK and the CQI signal using different signal formats, and RS are defined in different positions (i.e. positions of these RS are optimized independently in the case where only ACK/NACK, and in the case where only the signal CQI). Therefore, there is a problem that the magnitude of the interference from signal of ACK/NACK to the RS signal CQI varies depending on the data signal, the ACK/NACK or phases W1and W2used on the I signal ACK/NACK. That is, even if RS are important parts of the reception signal, CQI, it is likely that the magnitude of interference in these RS cannot be predicted, thereby degrading performance of the CQI reception.

Therefore, the aim of the present invention is to provide a device of the radio and how radio is to improve the operational characteristics of the reception CQI, for example, when the channel there is a delay when you experience lag temporal reference transmission or when the residual interference occurs between different cyclic shift values of ZC sequences.

A means for solving problems

The radio device according to the present invention employs a configuration that includes: a processing section of the signal transmission acknowledgement/negative acknowledgement, which encodes a broader spectrum of the signal acknowledgement/negative acknowledgement using an orthogonal sequence; section add phase reference signal, which adds phase under part orthogonal sequence reference signal quality indicator channel, multiplexed with acknowledgement/negative acknowledgement encoded with the extension of the spectrum using orthogonal sequence; and a transmission section that transmits ignal of quality indicator channel, includes reference signal, which is added to the phase.

Way radio according to the present invention includes: the step of processing the signal transmission acknowledgement/negative acknowledgement coding extension of the spectrum of the signal acknowledgement/negative acknowledgement using an orthogonal sequence; a step of adding the phase reference signal by adding a phase according to the part of the orthogonal sequence of the reference signal quality indicator channel, multiplexed with the signal acknowledgement/negative acknowledgement, coded with the extension of the spectrum using orthogonal sequence; and a step of transmitting the transmission signal quality indicator channel, which includes the reference signal, which is added to the phase.

Beneficial results of the invention

According to the present invention can improve the performance of the reception CQI, for example, when the channel delay when you experience lag temporal reference transmission or when the residual interference occurs between different cyclic shift values of ZC sequences.

Brief description of drawings

Figure 1 shows the encoding method with expansion of the range of the ACK/NACK;

figure 2 shows the correlation processing of the signal is ACK/NACK, encoded with the extension of the spectrum using the ZC sequence (in case of ideal communication media);

figure 3 shows the correlation signal processing ACK/NACK coded with the extension of the spectrum using the ZC sequence (in the case where there is a lag time of binding transmission);

figure 4 shows the correlation signal processing ACK/NACK coded with the extension of the spectrum using the ZC sequence (in the case where there is wave delay);

figure 5 shows a method of encoding a broader spectrum signal CQI;

6 is a structural diagram showing the configuration of a base station according to option 1 implementation of the present invention;

7 is a structural diagram showing the configuration of a mobile station according to option 1 implementation of the present invention;

Fig shows how the signal is transmitted ACK/NACK and a CQI signal;

Fig.9 shows how the Walsh sequence, which is often used, and the phase at RS CQI are orthogonal;

figure 10 shows how the phase RS the adaptive CQI governed under the Walsh sequence, which is often used;

11 shows how the signal is transmitted ACK/NACK and a CQI signal in the case where the position at RS CQI are multiplexed with RS the ACK/NACK;

Fig shows how the multiplexed ACK/NACK and the CQI signal another way under option 2 implementation of the present invention;

Fig block diagram showing the configuration of a base station according to option 3 implementation of the present invention;

Fig block diagram showing the configuration of a mobile station according to option 3 implementation of the present invention;

Fig shows how the generated signal ACK/NACK and the CQI signal, which is transmitted at the same time;

Fig shows how the multiplexed ACK/NACK and the CQI signal+answer under option 4 the implementation of the present invention.

The best option of carrying out the invention

In further embodiments of the present invention will be explained in detail with reference to the accompanying drawings.

(Option 1 implementation)

6 shows the configuration of base station 100 according to option 1 implementation of the present invention, and Fig.7 shows the configuration of mobile station 200 according to option 1 implementation of the present invention.

In addition, to avoid complicated explanations, Fig.6 shows the components, which is related to the data transmission downlink and receiving ACK/NACK in response to these data downlink to uplink communications, closely associated with the present invention, and the components related to the data receiving uplink communication to be displayed and will not be explained. Similarly Fig.7 shows the components that are relevant to the data receiving downlink and transmitting ACK/NACK in response to these data downlink to uplink communication, which is closely associated with the present invention, and the components related to data transmission uplink communication will not be shown and explained.

In addition, below will be explained a case where a ZC sequence is used for the first coding extension of the spectrum, and the Walsh sequence is used for the second coding extension of the spectrum. However, instead of ZC sequences to the first coding extension of the spectrum can be used sequences that can be separated on the basis of different cyclic shift values. Similarly orthogonal sequence other than the sequence of Walsh can be used for the second coding extension of the spectrum.

In addition, below will be explained a case of using a ZC sequence with a sequence length of 12 and a Walsh sequence (W0, W1, W2and W3with the length of the sequence . However, the present invention is not limited to these lengths of sequences.

In addition, in the following description twelve ZC sequences with cyclic shift values from 0 to 11 presents as with ZC #0 on ZC #11 and four Walsh sequence numbers 0 through 3 sequences represented as W #0 to W #3.

Moreover, in the following description, assume that CCH #1 L1/L2 occupies CCE#1, CCH #2 L1/L2 occupies CCE#2, CCH #3 L1/L2 occupies CCE#3, CCH #4 L1/L2 occupies CCE#4 and CCE#5, CCH #5 L1/L2 occupies CCE#6 and CCE#7, and CCH #6 L1/L2 is with CCE#8 to CCE#11.

Also, in the following explanation, assume that the CCE number and the number of the PUCCH, a certain amount of cyclic shift of the ZC sequence, and the sequence number of the Walsh associative connected one after the other. That is, CCE#1 corresponds to a PUCCH #1, CCE#2 corresponds to a PUCCH #2, CCE#3 corresponds to a PUCCH #3 and....

At the base station 100 shown in Fig.6, the resource allocation data downlink is introduced into the section 101 definition phase RS uplink communication section 102 forming control information and section 108 of the display.

Section 101 definition phase RS uplink communication determines which one of the "+" and "-" is used for the RS phases (i.e., the phase of the second symbol and the phase of the sixth symbol) CQI transmitted from the mobile station, and generating specific phase of seccio 102 forming control information. For example, in cases where the required number of PUCCH is small, and use only two Walsh code W#0=[1, 1, 1, 1] and W#1=[1, -1, -1, 1], codes Walsh the guidelines, which are transmitted CQI RS are (+, +) and (-, -), and therefore the section 101 definition phase RS ascending line specifies that you want to use (+, -), which is orthogonal to both, (+, +) and (-, -) for phase RS.

Section 102 of the formation control information, generates control information for the message of the distribution of resources and RS phases taken as input from the section 101 definition phase, RS, for each mobile station and outputs the control information in section 103 encoding. Control information for each mobile station includes the ID information (ID) of the mobile station indicating whether the mobile station is addressed to the control information. For example, the control information includes a CRC, which is masked by the ID number of the mobile station to which the control information is reported as the ID information of the mobile station. Control information for each mobile station is encoded in section 103 encoding is modulated in section 104 of modulation and is accepted as input in section 108 of the display. In addition, according to the number of CCE required for communication of control information, section 102 which is of the control information allocates a lot CCH L1/L2 of each mobile station and outputs the CCE number, associative dedicated CCH L1/L2, in section 108 of the display. For example, in the case where the number of CCE required for communication of control information to the mobile station #1 is one, and therefore CCH #1 L1/L2 allocated to the mobile station #1, section 102 forming control information gives the number #1 CCE in section 108 of the display. In addition, in the case where the number of CCE required for communication of control information to the mobile station #1 is four, and therefore CCH #6 L1/L2 allocated to the mobile station #1, section 102 forming control information generates numbers from #8 to #11 CCE in section 108 of the display.

Section 105 encoding encodes data transmission (for example, data downlink for each mobile station and outputs data transmission section 106 control re-transmission.

When the first transmission section 106 retransmission stores the coded data transmission to each mobile station and outputs data transmission section 107 of the modulation. Section 106 control re-transmission stores data transmission up until the ACK is not received from each mobile station as the input data of section 118 of the decision. In addition, when a NACK is received with each mobile station as the input data of section 118 of the decision, that is, when the transmission will be repeated, section 106 of the control surface is a priori transfer issues a data transfer, corresponding NACK, in section 107 of the modulation.

Section 107 modulation modulates the coded data transmission received as input from section 106 control re-transmission, and outputs data transmission section 108 of the display.

When transmitted control information, the display section 108 displays the control information received in the input data section 104 of the modulation in the physical resources according to the number of CCE adopted as the input of section 102 of the formation control information, and generates control information in section 109 inverse FFT. That is, the display section 108 displays the control information for each mobile station in the subcarriers corresponding to the CCE number in the set of subcarriers forming an OFDM symbol (multiplexing orthogonal frequency division multiplexing).

In contrast, when data is transmitted downlink, the display section 108 displays data transmission to each mobile station in the physical resources according to the resource allocation and issues a data transmission section 109 inverse FFT. That is, the display section 108 displays data transmission to each mobile station in one of the many subcarriers forming an OFDM symbol, according to the result of the allocation of resources.

With the Ktsia 109 inverse FFT generates the OFDM symbol, performing inverse FFT multiple subcarriers, which displays control information or data transmission, and outputs the OFDM symbol section 110 adding a CP (cyclic prefix).

Section 110 add CP adds the same signal as the tail part of the OFDM symbol as a CP, in the head part of this OFDM symbol.

Section 111 of the radio performs transmission processing such as digital-to-analog (D/A) conversion, amplification and conversion with increasing frequency, with respect to the OFDM symbol, which added to CP, and transmits the OFDM symbol from the antenna 112 to the mobile station 200 (Fig.7).

Meanwhile, section 113 of the radio receives the signal transmitted from the mobile station 200 through the antenna 112, and performs reception processing such as conversion downconverter and analog-to-digital (A/D) conversion, in relation to the adopted signal. Note that in a received signal, the ACK/NACK transmitted from the specified mobile station, and the CQI signals transmitted from other mobile stations are code-multiplexed.

Section 114 of the CP removal removes the CP added to the signal after processing of the reception.

Section 115 correlation processing finds the correlation value between the signal taken as input from the section 114 removal of CP, and a ZC sequence used for the first encoding with the extension of the receiving spectrum in the mobile station 200. That is, the correlation value is determined using the ZC sequence, associative associated with the value of the cyclic shift assigned to the ACK/NACK, and the correlation value is determined using the ZC sequence, associative associated with the value of the cyclic shift assigned to the CQI signal, are given in section 116 of division.

Section 116 of division issues an ACK/NACK in section 117 decoding, inverse coding extension of the spectrum, and the CQI signal in section 119 of the RS Association, on the basis of the correlation values received as input from section 115 of the correlation processing.

Section 117 decoding, inverse coding extension of the spectrum, performs decoding, inverse coding extension of the spectrum of the signal ACK/NACK received as input from section 116 of division, using Walsh sequence used for the second coding extension of the spectrum to the mobile station 200, and outputs a signal after decoding, inverse coding extension of the spectrum, in section 118 of the decision.

Section 118 of the decision detects the ACK/NACK of each mobile station, detecting the correlation peak of each mobile station using the detection limit for each mobile with whom Anzhi in the time domain. For example, in the case where the correlation peak is detected in the window #1 detection for mobile station #1, section 118 of the decision detects the ACK/NACK of mobile station #1. Then section 118 decision decides whether detectionin signal ACK/NACK ACK or NACK, and generates ACK or NACK with each mobile station in the section 106 control re-transmission.

Section 119 of the RS Association coordinates and integrates the phase set RS CQI received as input from section 116 of division, and estimates the channel using a combined RS. The estimated channel information and the CQI signals received as input from section 116 of division, are given in section 120 demodulation.

Section 120 of the demodulator demodulates the signal CQI adopted as the input of section 119 of the RS Association, using the information about the channel, and section 121 decoding decodes the demodulated signal and outputs the CQI CQI signal.

In contrast to the mobile station 200 shown in Fig.7, section 202 of the radio receives through the antenna 201, the OFDM symbol transmitted from base station 100, and performs reception processing such as conversion downconverter and analog-to-digital conversion with respect to the adopted OFDM symbol.

Section 203 of the CP removal removes the CP added to the OFDM signal, after processing the reception.

Section 204 FFT (fast Fourier transform, FFT) performs the processing with respect to the OFDM symbol to obtain control information or data downlink displayed in a variety of subcarriers, and outputs the results in section 205 retrieval.

For receiving control information section 205 of the extracting extracts the control information from the sets of subcarriers, and generates control information in section 206 demodulation. This control information is demodulated in section 206 demodulation, decoding section 207 decodes and is accepted as input in section 208 of the decision.

In contrast to receive data downlink section 205 retrieve retrieves data downlink addressed to the mobile station 200 from the set of subcarriers according to the distribution of resources as input from section 208 of the decision and issues a data downlink in section 210 demodulation. These data downlink demodulated in section 210 demodulation, are decoded in section 211 decoding and are accepted as input in section 212 of the CRC.

Section 212 performs CRC error detection with respect to the decoded data downlink using CRC, and generates ACK, if CRC=OK (i.e. no errors) or generates a NACK, CRC=NG (that is, error), and outputs the generated ACK/NACK in section 213 of the modulation. In addition, if CRC=OK (i.e. no errors), section 212 CRC outputs the decoded data downlink as received data.

Section 208 of the decision-making performs blind decision whether addressed or not control information received as input from section 207 of the decision, the mobile station 200. For example, through the implementation of enabling IRQ-unmasking using the ID number of the mobile station 200 section 208 of deciding decides that the management information showing that CRC=OK (i.e. no errors)addressed to the mobile station 200. Then section 208 of the decision-making generates control information addressed to the mobile station 200, that is, the result of the resource allocation data downlink to the mobile station 200, section 205 of the extract. Section 208 of decision selects the number of PUCCH used for transmitting ACK/NACK from the mobile station 200, based on CCE, associative associated with the subcarrier in which the mapped control information addressed to the mobile station 200, and outputs the result of the decision (i.e. number of PUCCH) in section 209 of the control. For example, the control information is displayed in subcarriers associative associated with CCE #1, and therefore, section 208 of the decision m the mobile station 200, which highlighted above CCH #1 L1/L2, decides that PUCCH #1, associative associated with CCE #1, is the PUCCH for the mobile station 200. In addition, control information is displayed in subcarriers associative associated with CCE #8 to CCE #11, and therefore, section 208 of the decision of the mobile station 200, which highlighted above CCH #6 L1/L2, decides that PUCCH #8, associative associated with CCE #8, the lowest numbers among with CCE #8 to CCE #11, is the PUCCH for the mobile station 200. Moreover, section 208 of the decision-making extracts phase RS included in the control information received in the input data section 207 decodes, and outputs phase RS in section 209 of the control.

According to the PUCCH number passed in as input from section 208 of the decision, section 209 controls the amount of cyclic shift of the ZC sequence used for the first coding extension of the spectrum in section 214 encoding with expansion of the range and section 219 coding extension of the spectrum, and the Walsh sequence used for the second coding extension of the spectrum in section 217 encoding a broader spectrum. That is, section 209 of the control sets the ZC sequence with the amount of cyclic shift, associative associated with the number of PUCCH accepted as input from section 08 decision-making, section 214 encoding with expansion of the range and section 219 encoding with expansion of the range and establishes a sequence of Walsh, associative associated with the number of PUCCH accepted as input from section 208 of the decision section 217 encoding a broader spectrum. In addition, section 209 of the control section 222 add phase RS according to the phases of the RS adopted as the input of section 208 of the decision. In addition, section 209 of the control section 223 of the selection signal to select the signal transmission CQI, if the base station 100 in advance gives the command CQI transmission, and for transmitting ACK/NACK based on CRC=NG (that is, error) in section 208 of the decision, if the base station 100 does not advance team CQI transmission.

Section 213 modulation modulates the ACK/NACK adopted as the input of section 212 of the CRC, and outputs the ACK/NACK in section 214 encoding a broader spectrum. Section 214 encoding a broader spectrum performs the first encoding with the expansion of the range of the ACK/NACK using the ZC sequence set out in section 209 controls, and outputs the ACK/NACK after the first coding extension of the spectrum in section 215 of the inverse FFT. Section 215 performs inverse FFT inverse FFT with respect the signal ACK/NACK after the first coding extension of the spectrum, and outputs the ACK/NACK after the inverse FFT section 216 add CP. Section 216 adding CP adds the same signal as the rear of the ACK/NACK after the inverse FFT, the head of the ACK/NACK, as CP. Section 217 encoding a broader spectrum performs the second encoding with the expansion of ACK/NACK, which added a CP, using Walsh sequence set out in section 209 controls, and outputs the ACK/NACK after the second coding extension of the spectrum in section 223 of the selection signal transmission. In addition, section 213 of the modulation section 214 encoding a broader spectrum, section 215 inverse FFT, section 216 adding CP and section 217 encoding a broader spectrum of functioning as a means of processing the signal transmission ACK/NACK.

Section 218 modulation modulates the signal and outputs the CQI CQI signal section 219 coding extension of the spectrum. Section 219 encoding a broader spectrum encodes a broader spectrum of the CQI signal using the ZC sequence set out in section 209 controls, and outputs a signal CQI coding extension of the spectrum in section 220 of the inverse FFT. Section 220 performs inverse FFT inverse FFT with respect to encoded a broader spectrum of the signal and outputs the CQI CQI signal after inverse FFT section 221 adding CP. Section 221 adding CP adds the same signal as the rear part of the CQI signal after the inverse is wow FFT, in the head part of such a CQI signal as a CP.

Section 222 add phase RS adds phase set out in section 209 of the control signal CQI taken as input from the section 221 adding CP, and outputs the CQI signal, which added phase, in section 223 of the selection signal transmission.

According to the setting in section 209 of the control section 223 of the selection signal selects one of the ACK/NACK received as input from section 217 encoding a broader spectrum, and the CQI signal, received as input from section 222 add phase RS, and outputs the selected signal to the section 224 radio as the transmission signal.

Section 224 of the radio performs transmission processing such as d / a conversion, amplification and conversion with increasing frequency, with respect to transmission signals are taken as input from the section 223 of the choice of the transmission signal, and transmits the transmission signals from the antenna 201 to base station 100 (6).

Then it will be explained how the CQI signal is generated in the mobile station 200 shown in Fig.7. Note that, instead of passing both ACK/NACK and CQI signal, the mobile station 200 transmits one of these. In addition, the ACK/NACK is formed, as shown in Fig.7.

As shown in figure 5, five characters of information are encoded with ASD what Iranian spectrum section 219 encoding a broader spectrum using the ZC sequence, CP is added to section 221 adding CP, and then CQI appears over five symbols SC-FDMA. In addition, the ZC sequence is displayed in two symbol SC-FDMA of the second symbol and the sixth symbol as RS.

Here, assume that the base station 100 uses only two sequences Walsh, defined in advance for the transmission of ACK/NACK. That is, although the system can use four Walsh sequence, the base station 100 specifies the use of only two sequences Walsh, W#0=[1, 1, 1, 1] and W#1=[1, -1, -1, 1]. Mobile station 100 that transmits signals ACK/NACK, uses only these sequences are Walsh. Similarly, the base station 200 specifies the use of (+, -) as the RS phases (the phase of the second symbol and the phase of the sixth symbol) CQI. That is, as described above, section 222 add phase RS mobile station 200 7, transmitting the CQI signals, adds the phase of the CQI RS. At this time, how the signal is transmitted ACK/NACK and a CQI signal is as shown in Fig.

As shown in Fig, the sequence W #1 Walsh is applied to the data (corresponding drawn portion in the figure) of ACK/NACK. In contrast with this "+" is added to the CQI RS as a phase of the second RS symbol and "-" is added to the CQI RS as phase RS sixth character. Then there is a subsequence (W1and W2) PEFC is the sequences of Walsh, multiplexed with CQI RS and applied to the second symbol and the sixth symbol of the ACK/NACK show (+, +) or (-, -), and section 119 of the Association RS base station 100 coordinates and integrates the phase of the CQI RS (converting the reception in the sixth symbol), thereby reversing the second symbol and the sixth symbol phase signal encoded with the extension of the spectrum using Walsh sequences, so that the phase neutralize each other, and can decrease the interference from signal of ACK/NACK CQI RS.

In addition, the Walsh sequence and the choice of the phases of CQI RS for a given base station 100 broadcasts are transmitted from the base station 100 at equal intervals of time.

Thus, under option 1 the implementation of the establishment of RS CQI transmitted from the mobile station, the second orthogonal code encoding with expansion of the range of the ACK/NACK multiplexed in the same positions as the RS, and coordinating and averaging phase RS CQI to the base station, the effect of noise can be reduced and can be reduced interference signals received from the ACK/NACK transmitted from the other mobile stations, so that it is possible to improve the accuracy of channel estimation in CQI and to improve the accuracy of the signal receiving CQI. In addition, the ACK/NACK is encoded with the extension of the spectrum, when accepted signals ACK/NACK, and therefore added to the contraction in the major phases of the parts of the CQI RS, so it is possible to reduce interference signals from the parts of the CQI RS in respect of ACK/NACK. It is possible to improve the accuracy of the signals ACK/NACK.

In addition, although there has been explained the case of the present embodiment, which uses two of the four Walsh sequences that can be used in the system, it is equally possible to determine in advance the priority for the four Walsh sequences and to use the Walsh sequence in order starting with the highest priority. Below will be explained the case where the priority assigned to the four Walsh sequences.

The base station broadcasts to the mobile station, each mobile station must transmit the CQI using a phase orthogonal to the subsequences (W1and W2) Walsh sequence that is used often. The magnitude of the interference in relation to the CQI RS is increased depending on the number of mobile stations using a Walsh sequence that is not orthogonal CQI RS, and establishment phases of CQI RS and Walsh sequences that are frequently used, orthogonal to each other, it is possible to reduce the overall amount of interference in relation to the CQI RS. This situation is shown in Fig.9.

In addition, even if the base station does not broadcast information having a relationship with the phases of the CQI RS uplink communication, in advance, the mobile station can identify the phase of the CQI RS each time according to the temporary bindings for transmission of CQI. Although some of the mobile station transmits the uplink signal communication podagra or what resources code uplink connection used to perform transmission to the mobile stations varies based on each podagra, the base station in advance examined which sequences are Walsh often used in frames for transmission of CQI, and, therefore, adaptive to the mobile stations for transmission of CQI RS, making CQI RS and the sequence of Walsh (W1and W2), which are used more often orthogonal to each other. Through this you can reduce the overall amount of interference in relation to the CQI RS. This situation is shown in figure 10. In addition, the case where the provisions of RS CQI are multiplexed with RS ACK/NACK shown figure 11.

In addition, in the case where the second sequence encoding a broader spectrum, other than a Walsh sequence is used for ACK/NACK whether the codes S1 and S2 are in phase or opposite phase, is checked by drawing attention to the codes on the sites (S1 and S2)are associated with CQI RS for the second encoded with expansion of the range of the sequence (S0, S1, S2 and S3)used on this base station.

I.e. it is checked, Aleuts is whether the second and third codes in the second coded with expansion of the range of the sequence, used at the base station, phase sequence or phase sequences, and if a larger number of sequences in which the second and third characters are in-phase, (+, -) can be used as a phase RS, and if a larger number of sequences in which the second and third characters are in opposite phase, (+, +) can be used as a phase RS.

Note that (-, +) and (-, -) can be used as phase instead of (+, -) and (+, +).

(Option 2 implementation)

The configuration of the base station and the mobile station according to option 2 implementation of the present invention are the same as the configuration shown in Fig.6 and Fig.7 for the version 1 implementation, and therefore will be explained using Fig.6 and Fig.7.

How are multiplexed with the ACK/NACK and the CQI signal (i.e. resource allocation) under option 2 implementation of the present invention, shown in Fig. Here, assume that the base station performs resource allocation, shown in Fig. Note that the horizontal axis represents an amount of cyclic shift, and the vertical axis represents the sequence of Walsh.

In addition, whereas that CQI RS is subjected to interference, mainly from signals ACK/NACK, the coding is offer a broader spectrum using ZC sequences, associated with consecutive values of cyclic shift. To be more precise, the CQI RS receive significant interference from nearby signals ACK/NACK with a small amount of cyclic shift and make a great noise to nearby signals ACK/NACK with a large amount of cyclic shift.

As shown in Fig, the mobile station transmits CQI #1, encodes a broader spectrum and transmits the CQI signal using the ZC sequence, associative associated with the cyclical shift 2. At this time, CQI #1 receives the greatest interference from ACK #5, and therefore focusing on the phases (W1=1 and W2=-1) W1and W2ACK #5, section 101 definition phase RS uplink communication base station 100 determines (+, +) as the phases of CQI RS. In addition, CQI #2 receives interference from ACK #3 and ACK #11, and therefore focusing on the phases (W1=1 and W2=1) W1and W2ACK #3 and phases (W1=-1 and W2=-1) W1and W2ACK #11, section 101 definition phase RS uplink communication base station 100 determines (+, -) as the phases of CQI RS.

Thus, under option 2 implementation phase of the CQI RS is determined, focusing on Walsh codes of ACK/NACK, which actually takes a significant interference, so that it is possible to effectively reduce the amount of interference in RS.

In addition, while RA is the allocation of resources, shown in Fig, it is assumed in the present embodiment, the base station can freely allocate resources ACK/NACK. For example, in the case where the ACK/NACK and the CQI signal are multiplexed, as shown in Fig, three ACK #2, ACK #8 and ACK #9 are adjacent to the CQI #1, and use the extra W#2=[1, 1, -1, -1]. Therefore, the section 101 definition phase RS uplink communication base station 100 determines (+, +) as the phases of CQI RS #1. In addition, three ACK #4, ACK #11 and ACK #16 are adjacent to the CQI #2, and the number of mobile stations using W#0=[1, 1, 1, 1] and W#1=[1, -1, -1, 1], is greater than the number of mobile stations using W #2. Therefore, the section 101 definition phase RS uplink communication base station 100 determines (+, -) as the phases of CQI RS #2.

In addition, paying attention that the desired error rate of the CQI is approximately 10-2along with the fact that the required frequency error signal ACK/NACK is 10-4phase CQI RS can be installed from the condition that the quality of the ACK/NACK is additionally increased. That is, as described above, by setting the phases of CQI RS, and W1and W2signal ACK/NACK orthogonal to each other, it is possible to reduce interference with CQI, as well as interference from a CQI signal ACK/NACK. Therefore, in the case shown in Fig, phase RS are set to reduce the impact on ACK #9, to the which is subjected to interference from the CQI #1, and ACK #11, which is exposed to interference from CQI #2. That is, ACK #9 and ACK #11 both use W #2, and therefore the phase of the RS, both installed in CQI #1 and CQI #2, are (+, +), respectively.

(Option 3 implementation)

Option 3 implementation of the present invention will be explained the case where the CQI signal and the response signal (ACK/NACK) is transmitted at the same time. That is, although the base station instructs the mobile station timing for transmission of the CQI signal, occurs depending on the temporal reference for the selection of the data signal downlink base station where the mobile station simultaneously transmits the CQI signal and the response signal (that is, ACK or NACK) in response to the data signal downlink. At this time, the CQI signal and the response signal that is transmitted simultaneously presented together as "CQI+response signal". Note that CQI+response signal is represented as a signal CQI+NACK" in the case where the response signal is a NACK, and presented as a "signal CQI+ACK" in the case where the response signal is ACK.

Fig shows the configuration of the base station 150 according to option 3 implementation of the present invention. Note that Fig differs from 6 replacement section 101 definition phase RS uplink communication section 151 definitions phase RS and replacement of section 119 of the Association RS Masaccio 152 Association RS.

Section 151 of the definition phase of the RS uplink communication determines ask whether phase RS (that is, the phase of the second symbol and the phase of the sixth symbol) CQI+response signal transmitted from the mobile station that the (+, -) is CQI+ACK, and (+, +) is CQI+NACK, or ask that the (+, +) is CQI+ACK, and (+, -) is CQI+NACK, and gives a certain task phases RS in section 102 of the formation of management information and section 152 of the Association RS.

For example, in the case where the number of required PUCCH is small, and use only two, W#0=[1, 1, 1, 1] and W#1=[1, -1, -1, 1], as Walsh codes, Walsh codes in positions where the transmitted CQI RS are (+, +) and (-, -), and therefore section 151 definitions phase RS uplink communication highlights (+, -), which is both orthogonal Walsh codes, as phases RS and then determines that you should install that (+, +) is CQI+ACK packet, and determine that the (+, -) is CQI+NACK.

In the case where the mobile station transmits only CQI signal, section 152 of the RS Association coordinates and integrates the phase set RS CQI received as input from section 116 of division, and estimates the channel using a combined RS. The estimated channel information and the CQI signals received as input from section 116 of division, are given in section 120 demodulation.

In addition, in the case where the mobile station transmits CQI+response signal, section 152 about the unity RS decides whether the cardinality CQI RS, received as input from section 116 of division, greater in the case where the phase RS are coordinated, provided (+, +) or in the case where the phase RS are coordinated under the condition of (+, -), and decides that phase more power phases are CQI RS. Using this result, decisions about RS phases and phase definitions RS, received as input from section 151 of the definition phase of the RS uplink communication, a decision is made whether a response signal is transmitted simultaneously with the CQI, the ACK or NACK. That is, section 152 Association provides two RS correlator having the coefficients (+, +) and gains (+, -) of the signal RS, and decides whether the signal transmitted simultaneously with the CQI, the ACK or NACK, using the output of these correlators. This result is given in the section 106 control re-transmission. In addition, on the basis of this result RS obtained through coordination and integration of these phases, are used for channel estimation for decoding part of the CQI data. The estimated channel information and the CQI signals received as input from section 116 of division, are given in section 120 demodulation.

Then Fig shows the configuration of mobile station 250 under option 3 implementation of the present invention. Note, the fact Fig differs from Fig.7 replacement of section 209 of the control section 251 controls.

According to the PUCCH number passed in as input from section 208 of the decision, section 251 controls the amount of cyclic shift of the ZC sequence used for the first coding extension of the spectrum in section 214 encoding with expansion of the range and section 219 coding extension of the spectrum, and the Walsh sequence used for the second coding extension of the spectrum in section 217 encoding a broader spectrum. That is, section 251 of the control sets the ZC sequence with the amount of cyclic shift, associative associated with the number of PUCCH accepted as input from section 208 of the decision section 214 encoding with expansion of the range and section 219 encoding with expansion of the range and establishes a sequence of Walsh, associative associated with the number of PUCCH accepted as input from section 208 of the decision section 217 encoding a broader spectrum. In addition, section 251 of the control section 222 add phase RS according to the phases of the RS adopted as the input of section 208 of the decision.

In addition, section 251 of the control section 223 of the selection signal for selecting the CQI signal transmission, i.e. transmission of the output signal from section 222 add phase RS, if the base station 150 zabla is vremenno instructs transmission of CQI, and to select the transmission of the ACK/NACK based on CRC=NG (that is, error) in section 208 of the decision, i.e. the transmission of the output signal of section 217 coding extension of the spectrum, if the base station 150 does not give the command signal transmission CQI.

Moreover, in the case where the base station 150 in advance gives the command transmission of CQI and ACK/NACK needs to be transmitted with CQI, section 251 of the control determines the phase for RS section 222 add phase RS according to the phases of the RS, a given base station 150, and the signal from section 212 CRC. For example, in the case where the base station 150 in advance indicates that the (+, +) is CQI+ACK, and (+, -) is CQI+NACK as the definition of the phases of the RS, and CQI and NACK signal are simultaneously transmitted, the base station 150 gives the command section 222 add phase RS to use phase (+, -).

Then it will be explained how the mobile station 250, shown in Fig, generates CQI+response signal. There will be explained a case where the mobile station 250 simultaneously transmits the ACK/NACK and the CQI signal.

As shown in Fig and Fig, five characters of information in the CQI signal encoded by expanding the range using the ZC sequence in section 219 coding extension of the spectrum, are added to CP by section 221 adding CP and appear on top of the five characters of the C-FDMA. In addition, the ZC sequence is displayed on top of the two characters SC-FDMA of the second symbol and the sixth symbol as RS.

Here, assume that the base station 150 uses only two sequences Walsh, beforehand defined transmission signal ACK/NACK. That is, although the system can use four Walsh sequence, the base station 150 specifies the use of only two sequences Walsh, W#0=[1, 1, 1, 1] and W#1=[1, -1, -1, 1]. Mobile station 250, which transmits only the signals ACK/NACK, uses only these sequences are Walsh. Similarly, the base station 150 broadcasts that the phases of the CQI RS (that is, the phase of the second symbol=X1and phase of the sixth symbol=X2), (+, +) is defined as CQI+ACK, and (+, -) is defined as CQI+NACK. That is, as described above, section 222 add phase RS mobile station 250 on Fig, which transmits CQI+response signal, adds the phase of the CQI RS. At this time, the way in which are formed the ACK/NACK and the CQI signal is as shown in Fig.

As shown in Fig, the sequence W #1 Walsh is applied to the data (corresponding drawn portion in the figure) of ACK/NACK. In contrast with this "+" is added to the RS signal, CQI+NACK as a phase of the second RS symbol and "-" is added to the RS signal, CQI+NACK as phase RS sixth character. That is, the sequence (W 1and W2) Walsh sequence used for the second symbol and the sixth symbol of the ACK/NACK multiplexed with CQI RS show (+, +) or (-, -), the ACK/NACK does not create interference in respect of the issued through coordination of phase (inverted result of taking in the sixth character), provided that the coefficients are (+, -)when section 152 Association RS base station 150 makes the choice CQI RS. This is because the correlation processing used for signal reception CQI+NACK, inverts the phase of the second symbol and the sixth symbol signal encoded with the extension of the spectrum using a Walsh sequence, and phase neutralize each other, so that you can reduce the interference from signal of ACK/NACK to the RS signal, CQI+NACK. It is possible to reduce interference from surrounding individual signals ACK/NACK signals CQI+NACK.

Note that the sequence of Walsh and definition phases of CQI RS for a given base station 150 broadcasted from the base station 150 at equal intervals of time.

Thus, under option 3 the implementation of the establishment of the RS signal, CQI+NACK transmitted from the mobile station, the second orthogonal code encoding with expansion of the range of the ACK/NACK multiplexed in the same positions as the RS, and coordinating and averaged over b the gas station phase RS signal CQI+NACK the effect of noise can be reduced, and can be reduced interference from signals ACK/NACK transmitted from the other mobile stations, so that it is possible to improve the accuracy of selection signals NACK, when accepted signals CQI+NACK.

In the case where the base station is undergoing a failure in the reception of the ACK signal, the base station again transmits a signal downlink, even if the data has reached the terminal. However, in this case spent only small resources downlink, which does not have a significant impact on the system. However, in the case where the base station is undergoing a failure in the reception of the NACK signal, the base station recognizes that the mobile station has successfully received the data and not transmitting data again. Accordingly, in this case, the required data is not reaching the mobile station. In the case where the introduced mechanism to check the content of the data at the top level and query data that has not reached the terminal, again with the base station, although the problem that does not arrive, the data does not occur, a significant delay in the data transfer occurs in the case where the base station is undergoing a failure in the reception of the NACK signal. Therefore, according to the present invention, the system efficiency is improved by improving the accuracy of selection signals NACK, when accepted signals CQI+NACK.

In addition, although there has been explained the case with this version done by the means, using two of the four available sequences of the Walsh system, it is equally possible to determine in advance the priority for the four Walsh sequences and to use the Walsh sequence, one after the other, starting with the highest priority. Below will be explained the case where the priority assigned to the four Walsh sequences.

The base station 150 transmits broadcast to all mobile stations 250, each mobile station 250 must define a phase orthogonal to the subsequences (W1and W2) Walsh sequence, which is often used as a CQI+NACK. The magnitude of the interference in relation to the RS in CQI+NACK increases depending on the number of mobile stations that use the Walsh sequence that is not orthogonal RS signal CQI+NACK, it is possible to reduce the overall amount of interference in relation to the RS signal, CQI+NACK, making a sequence of Walsh, which are often used, and phase of the RS signals CQI+NACK orthogonal to each other.

In addition, even if the base station 150 does not broadcast information related to the phases of the signal CQI+NACK uplink communication, in advance, the mobile station 250 can provide a definition of the phases at RS CQI+response signal each time, depending on time constraints for lane is giving CQI+response signal. Although some of the mobile station transmits the uplink signal communication podagra or what resources code uplink connection used to perform transmission to the mobile station varies based on each podagra, the base station 150 in advance learned what sequence of Walsh often used in frames for transmission of CQI+response signal, and, therefore, can give a command to the mobile stations for transmission to the RS signals CQI+NACK, making RS signals CQI+NACK and the sequence of Walsh (W1and W2), which are often used, orthogonal to each other. Through this you can reduce the overall amount of interference in relation to signals CQI+NACK.

(Option 4 implementation)

The configuration of the base station and the mobile station according to option 4 implementation of the present invention are the same as the configuration shown in Fig and pig under option 3 implementation and therefore will be explained using Fig and Fig.

How are multiplexed with the ACK/NACK and CQI+response signal (i.e. resource allocation) under option 4 the implementation of the present invention, shown in Fig. Here, assume that the base station 150 performs the resource allocation shown in Fig. Note that the horizontal axis represents the value of the cyclic with the vig and the vertical axis represents the sequence of Walsh.

In addition, note that RS CQI+response signal subjected to interference, mainly from signals ACK/NACK coded with the extension of the spectrum using ZC sequences are associated with consecutive values of cyclic shift. To be more precise, RS CQI+response signal receive significant interference from nearby signals ACK/NACK with a small amount of cyclic shift and add significant noise to the nearest signals ACK/NACK with a high amount of cyclic shift.

As shown in Fig, mobile station 250, which transmits CQI+NACK #1, encodes a broader spectrum and transmitting CQI+NACK #1 using the ZC sequence, associative associated with the cyclical shift 2. At this time, CQI+NACK #1 receives the greatest interference from ACK #5, and therefore the section 151 definitions phase RS uplink communication base station 150 determines (+, +) as the phases at RS CQI+NACK #1, paying attention to the phase (W1=1 and W2=-1) W1and W2the ACK #5.

Then taken into account interference from CQI+response signals on the neighboring signal ACK/NACK. When this mobile station transmits CQI and the response signal at the same time, the response signals are signals ACK at the level of 90 percent. This is because b the gas station 150 performs adaptive modulation processing of the conditions, to the target error rate for data downlink was approximately 10 percent. That is, the reduction of interference from signals of a CQI+ACK packet to the neighboring signals ACK/NACK is effective to reduce interference from CQI+response signal to neighboring signals ACK/NACK. Here let us return to Fig, attention was drawn to CQI+ACK #2. CQI+ACK #2 is making significant interference to ACK #7. Focusing on the phases (W1=-1 and W2=1) W1and W2the ACK #7, section 151 definitions phase RS uplink communication base station 150 determines (+, +) as the phases at RS CQI+ACK #2.

Through this base station 150 performs decoding, inverse coding extension of the spectrum, when receiving the ACK #7, and therefore added reverse phase parts of the RS signal, CQI+ACK, so it is possible to reduce interference signals from parts of the RS signal, CQI+ACK to ACK #7.

Thus, under option 4 implementation phase at RS CQI+response signal is determined by paying attention to Walsh codes of ACK/NACK, which actually adopts and imposes significant obstacles so that you can reduce the amount of interference that takes RS CQI+response signal, and the amount of interference that imposes RS CQI+response signal.

Options for implementation were explained above.

In addition, although the above embodiments of were explained in terms which, that one base station generates one cell, and the base station performs the same management RS codes and the management of resources ACK/NACK in their area of administration, the present invention is also applicable to the case, for example, where one base station generates many hundreds through directional antennas, administers numerous hundred and independently manages these cells.

Moreover, although there have been described the cases of the above options implement as examples where the present invention is configured by hardware, the present invention can also be implemented by software.

Each functional block used in the description of each of the above embodiments, typically can be realized as an LSI (large integrated circuits, LSI), composed of integrated circuits. Such can be a separate chip or partially or completely contained in a single chip. It is set to "ENCORE", but it also can be a reference as "IP" ("IC", "IC"), "system LSI", "superbalita BIS or BIS ultra-high", depending on different degrees of integration.

Furthermore, the method of circuit integration is not limited to LSI, and implementation using a dedicated circuit or processors with the change, also possible. After the industrial production of BIS is also possible to use a programmable FPGA (user-programmable gate arrays) or processor with configurable where can reconfigure themselves on the connections and settings of cells within BIS.

In addition, if the result of the development of semiconductor technology or other derivative technology, you receive the technology of integrated circuits to replace BIS, of course, also possible to integrate the functional blocks using this technology. The application of biotechnology is also possible.

The disclosure of application No. 2007-211101 patent Japan, registered on August 13, 2007, application No. 2007-280797 patent Japan, registered on October 29, 2007, including descriptions of inventions, drawings and abstracts, are included in the materials of the present application by reference in its entirety.

Industrial applicability

The radio device and method of radio transmission according to the present invention can improve performance of CQI reception and, for example, applicable to the device wireless base station and the mobile station device of a wireless communication, for example in the mobile communications system.

1. The device broadcasts containing
section processing PE is Adachi signal acknowledgement/negative acknowledgement, which encodes a broader spectrum of the signal acknowledgement/negative acknowledgement using an orthogonal sequence;
the section adding a phase reference signal, which adds phase, pursuant to part orthogonal sequence, the reference signal quality indicator channel, multiplexed with acknowledgement/negative acknowledgement encoded with the extension of the spectrum using orthogonal sequence; and
a transmission section that transmits a signal quality indicator channel, which includes the reference signal, which is added to the phase.

2. The radio device according to claim 1, in which the section adding a phase reference signal adds reference signal phase, pursuant to part orthogonal sequence, a higher priority in the orthogonal sequence, which is assigned a priority use.

3. The radio device according to claim 1, in which the section adding a phase reference signal adds the phase of the reference signal according to the number of radio devices that use a pair of orthogonal sequences in which part of codes for encoding a broader spectrum signal acknowledgement/negative acknowledgement, multiplexed with the reference signal is in-phase, and the number of the device is the CTV broadcast which uses a pair of orthogonal sequences in which part of codes for encoding a broader spectrum signal acknowledgement/negative acknowledgement, multiplexed with the reference signal is in opposite phase.

4. The radio device according to claim 1, in which the section adding a phase reference signal adds reference signal phase according to the part of the code used to perform the second encoding a broader spectrum signal acknowledgement/negative acknowledgement, which is multiplexed with the reference signal and which is subjected to the first encoding range extension using sequence Sadova-Chu, which is adjacent to the sequence Sadova-Chu used to encode a broader spectrum of quality indicator channel, and which is associative associated with the smaller value of the cyclic shift than the amount of cyclic shift sequences Sadova-Chu used to encode a broader spectrum of quality indicator channel.

5. The radio device according to claim 1, in which
orthogonal sequences are used to perform a second coding extension of the spectrum of the signal acknowledgement/negative acknowledgement, which is subjected to the first encoding with the expansion of the range with the COI is whether the sequence Sadova-Chu, associative associated with the amount of cyclic shift, which is the next largest cyclic shift sequence Sadova-Chu used to encode a broader spectrum of quality indicator channel; and section add phase reference signal adds the phase of the reference signal according to the number of radio devices that use orthogonal sequence in which part of the codes used to perform the second encoding a broader spectrum signal acknowledgement/negative acknowledgement, multiplexed with the reference signal is in-phase, and the number of radio devices that use orthogonal sequence in which part of the codes used to perform the second encoding with expansion of the range of the confirmation signal/negative acknowledgment, multiplexed with the reference signal is in opposite phase.

6. The radio device of claim 1, wherein in the case where the signal superimposing a signal of acknowledgement/negative acknowledgement to the quality indicator channel has a phase orthogonal to the part of the orthogonal sequence used by the confirmation signal, which imposes the greatest obstacle to a signal section add phase reference signal makes the signal confirmation the Deposit/negative acknowledgement imposed on the quality indicator channel signal negative acknowledgment.

7. The radio device of claim 1, wherein in the case where the signal superimposing a signal of acknowledgement/negative acknowledgement to the quality indicator channel has a phase orthogonal to the part of the orthogonal sequence used by the confirmation signal, which imposes the greatest obstacle to a signal section add phase reference signal makes the signal acknowledgement/negative acknowledgement imposed on the quality indicator channel signal confirmation.

8. The radio device according to claim 6, in which the section adding a phase reference signal adds reference signal superimposed signal phase, pursuant to part orthogonal sequence, a higher priority in the orthogonal sequence, which is assigned a priority use.

9. Way radio, containing
the stage of processing the signal transmission acknowledgement/negative acknowledgement, which encode a broader spectrum of the signal acknowledgement/negative acknowledgement using an orthogonal sequence;
the step of adding the phase reference signal on which the add phase, pursuant to part orthogonal sequence, the reference signal quality indicator channel, multiplexed with the signal acknowledgement/negative acknowledgement, Kodirov the major extension of the spectrum using orthogonal sequences; and
stage transmission, which transmits a signal quality indicator channel, which includes the reference signal, which added phase.



 

Same patents:

FIELD: information technology.

SUBSTANCE: one aspect of the invention discloses a base station which includes a scheduling module configured to perform frequency scheduling for each subframe; a control channel generating module for generating a control channel having general control information distributed into radio communication resources, distributed in the system bandwidth, and dedicated control information distributed into one or more resource blocks allocated for each selected user device; a transmission signal generating module for generating a transmission signal via time-division multiplexing of the general control information and the dedicated control information in accordance with the scheduling information from the scheduling module. The general control information includes a format indicator which reflects one of predetermined alternatives which indicates the number of characters occupied by the general control information in one subframe. The general control information includes information elements with predetermined data length. The number of information elements is less than or equal to the defined value of the set contained in broadcast information.

EFFECT: efficient transmission of control channels by communication terminals in a communication system when the bandwidth allocated for the communication system contains multiple resource blocks, each having one or more subcarriers.

35 cl, 46 dwg

FIELD: information technology.

SUBSTANCE: in the device, data selection is used to schedule according to data type, at that for transmission it is determined whether to transmit Channel Quality Indicators (CQI) for each of all subcarrier blocks in communication frequency band or to transmit CQI indicating receive quality averaged by all subcarrier blocks in communication frequency band on the basis of control information included in the received signal, and CQI for each of all subcarrier blocks in communication frequency band or CQI indicating channel quality averaged by all subcarrier blocks in communication frequency band on the basis of determination.

EFFECT: higher transmission efficiency, achieving low power consumption and high speed of signal processing.

2 cl, 22 dwg

FIELD: information technology.

SUBSTANCE: when multiplexing control channels for multiple receivers into OFDM character in equal time periods during downstream radio access OFDM is used which contains profile generation module made capable to generate frequencies presentation profile which is individual for transmitter; and frequencies assignment module made capable to assign subcarriers to control channels for multiple receivers according to frequencies presentation profile.

EFFECT: higher quality of receiving information.

11 cl, 20 dwg

FIELD: information technology.

SUBSTANCE: in cellular communications system with multiple carriers, the second code of synchronisation (Walsh code or serial GCL code), mapped on the second synchronising channel is used as the signal for determination in which cell of base station the mobile station terminal device itself is located. Signal transmitted from base station to mobile station terminal device is mapped into radiocommunication frame which is two-dimensional in directions of time and frequency. The synchronising channel into which the first and the second synchronising channels are mapped is imbedded in multiple areas in radiocommunication frame. When certain series number of the second code for cell or cells group determination is mapped into radiocommunication frame, to the second synchronisation code phase slue or cyclic shift is applied where one radiocommunication frame comprises one cycle. On the receiving side, frame header timing data is determined through obtaining information relative to phase slue angle or amount of the second synchronisation code cyclic shift.

EFFECT: high synchronisation accuracy.

14 cl, 13 dwg

FIELD: information technologies.

SUBSTANCE: multiple resource elements are divided into multiple resource areas, information to be transferred is modulated to generate a sequence of modulation symbols in a transmitter, compliance is established between the sequence of modulation symbols and the multiple elements of the resource in the multiple resource areas, and modulation symbols are sent to the receiver via multiple antennas using appropriate proper resource elements. The information to be transmitted may be coded to generate multiple code units, besides, for each unit from the set at least in one area of the resource approximately identical number of resource elements is identified. In the alternative version a subframe in the time area may contain only one area of the resource.

EFFECT: establishment of compliance between modulation symbols and resources.

24 cl, 16 dwg

FIELD: information technology.

SUBSTANCE: invention discloses a base station used in a mobile communication system comprising several cells consisting of several sectors. The base station has a synchronisation channel generating unit which generates a synchronisation channel for use during cell search by a user terminal, and a transmission unit which wirelessly transmits a signal, having a synchronisation channel. The synchronisation channel has a primary synchronisation channel and a secondary synchronisation channel. The primary synchronisation channel has a series of several types, and the secondary synchronisation channel, transmitted to a cell sector, has a code, predetermined based on a given polynomial generating equation, which corresponds to the primary synchronisation channel.

EFFECT: reduced effect of intersymbol interference and shorter time for cell search.

11 cl, 14 dwg

FIELD: information technology.

SUBSTANCE: techniques for determining cell timing in a wireless communication system are described. User equipment (UE) may obtain received samples which include at least one synchronisation signal generated based on a cell identifier. The UE may correlate the received samples with the at least one synchronisation signal in the time domain at different time offsets to obtain energies for multiple timing hypotheses. The UE may identify at least one detected peak based on the energies for the multiple timing hypotheses. The UE may then update a set of candidate peaks based on the at least one detected peak and may identify a candidate peak with signal strength exceeding the signal strength of a peak being tracked. The UE may provide the timing of the identified candidate peak as the timing of the cell.

EFFECT: faster cell search.

35 cl, 11 dwg, 1 tbl

Base station // 2438248

FIELD: information technology.

SUBSTANCE: base station, which sends a synchronisation signal over a synchronisation channel using the system frequency band which is less than the maximum system frequency band, in a radio communication system which supports use of multiple frequency bands, has a multiplexing unit configured to multiplex the synchronisation channel and a channel other than the synchronisation channel, based on reception filter characteristic used in the mobile station. The multiplexing unit can accommodate the synchronisation channel and the channel other than the synchronisation channel at continuous subcarriers. In another version, the multiplexing unit can allocate a protective band or a cyclic prefix for the transition band of the reception filter.

EFFECT: high accuracy of detecting signals.

2 cl, 7 dwg

FIELD: information technologies.

SUBSTANCE: method to assign a sequence and a device to assign a sequence are used in a system, where multiple different Zadoff-Chu sequences or GCL sequences are assigned to one cell, at the same time a number of arithmetic operations and extent of correlation circuit integration at a receiving end may be reduced. According to these method and device, at ST201 a counter (a) and a number (p) of current assignments of a sequence are initialised, and at ST202 it is identified whether the number (p) of current sequence assignments matches the number (K) of assignments to one cell. At ST203 it is identified whether the number (K) of assignments to one cell is odd or even. If K is even, at ST204-ST206, numbers of sequences (r=a and r=N-a), which are currently not assigned, are combined and then assigned. If K is odd, at ST207-ST212, for those sequences, to which a pair may not be selected, one of sequence numbers (r=a and r=N-a) is assigned, which are currently not assigned.

EFFECT: reduced volume of calculations.

8 cl, 17 dwg

FIELD: information technology.

SUBSTANCE: first and second sequences can be generated via circular shift a base sequence to a first and a second value, respectively. The base sequence can be a CAZAC (constant amplitude zero auto-correlation), PN (pseudorandom noise) sequence or some other sequence with good correlation properties. Circular shift of the first and second sequences can be defined based on a switching pattern. A first modulated sequence can be generated based on the first sequence and a first modulation symbol, and can then be sent over a first time interval. A second modulated sequence can be generated based on the second sequence and a second modulation symbol, and can then be sent over a second time interval. Each modulated sequence can be sent at K successive subcarriers using a localised frequency division multiplex (LFDM) scheme.

EFFECT: high throughput of the system with transmission of control information.

44 cl, 14 dwg

FIELD: communications engineering.

SUBSTANCE: proposed band selection method for mobile orthogonal frequency division multiple access communication system includes following steps to classify procedures of band selection between sending end and receiving ends with respect to original band selection process, passband width selection process, and periodic band selection process: determination of source band selection code (SC)number for source band selection process; SC number to request passband width for passband width request selection process and periodic SC number for periodic band selection process; determination of periodic SC deferment value in compliance with periodic SC number, and transmission of source SCs, passband width request SC, periodic SCs, and periodic SC deferment values on receiving ends.

EFFECT: minimized time for band selection access.

22 cl, 3 dwg, 4 tbl

FIELD: communications engineering.

SUBSTANCE: stationary wireless access system has, as a rule, user's room equipment unit connected through Ethernet interface to personal computer or to local network and base station unit connected through Ethernet interface to network. User's room equipment unit as such is easily installed by user while base station unit is usually mounted on mast at distance of 1 to 5 miles (1/6 to 8 km) from user's room equipment unit. Both the latter and base station unit usually incorporate integrated transceiver/data switch that provides for radio-frequency communications in the range of 2.5 to 2.686 GHz. Multiplexing with orthogonal frequency division of signals is used during transmission between user's room equipment units and base station ones over ascending and descending lines.

EFFECT: provision for using outwardly accessible antenna affording transmission within line-of-sight range.

70 cl, 19 dwg

FIELD: electrical and radio communications; underwater, radio, radio-relaying, and meteorological communication lines.

SUBSTANCE: start-stop communication system that has on sending end signal shaping and transfer unit 1 and on receiving end, receiver 2, amplitude detector 3, low-pass filter 4, first comparator 6, memory device 7, shift register 8, first decoder 9, switch 10, synchronizing unit 11, pulse shaper 12, pulse burst shaper 13, binary counters 14, 17, signal retrieval and storage device 19, and threshold device 5 is provided in addition with newly introduced second comparator 15, RS flip-flop 16, and second decoder 18.

EFFECT: reduced malfunction probability of proposed communication system.

1 cl, 3 dwg

FIELD: mobile telecommunication systems.

SUBSTANCE: device for decreasing relation of pike power to average power signal, sent along N(=2r) sub-bearing lines in transmitting device, having encoders for block encoding of w input data, where r - real number > 2, and output of N code symbols, has: serial-parallel converter for transforming data flow to w-(r-2) parallel data flows, where w - length of information word, first coder for receipt of w/2 parallel data flows from w-(r-2) parallel data flows from serial/parallel converter, block encoding of w/2 parallel data flows and output of N/2 first code symbols, generator of input operators for generation of r-2 data flows of input operators, in accordance to w-(r-2) parallel data flows, and second coder for receiving parallel data flows from serial/parallel converter, which were not received at first coder and (r-2) data flows from input operators, block encoding of received data flows and output of N/2 second code symbols, while r-2 data flows of input operators provide for complementarity of N code symbols.

EFFECT: higher efficiency, higher reliability.

6 cl, 22 dwg

FIELD: engineering of devices and methods for receipt and synchronization in direct digital satellite broadcast system.

SUBSTANCE: satellite system uses modulation with temporal signals separation and single-frequency network of ground-based re-emitting stations, each of which introduces a delay to ground signal. Delay allows to provide for coincidence of time of receipt of early modulated signal in the center of ground broadcasting zone with time of receipt of appropriate late modulated signal, thus improving switching between ground and satellite signals in receiver. Delay also compensates processing delay, occurring during conversion of satellite modulated stream under direct visibility conditions to multi-frequency modulated stream for transmission of satellite modulated stream under direct visibility conditions to user receivers. Delay is also adjusted in accordance to distance difference between each ground-based re-emitting station and satellite and between each station and center of ground-based broadcasting zone. Adjustment as described above optimizes receipt of temporal signals separation modulated and multi-frequency modulated signals by means of synchronization in the center of single-frequency system of phase of multi-frequency modulated signals, re-emitted from re-emitting stations of single-frequency system.

EFFECT: increased quality of radio-signal receipt.

8 cl, 12 dwg

FIELD: engineering of devices for generating series of preamble with low ratio of pike to average power in communications system with orthogonal multiplexing and frequency separation of channels.

SUBSTANCE: in accordance to method, first series of preamble is generated, wherein odd data of input series of preamble are transformed to zero data, and even data of aforementioned series are transformed to nonzero data, first series of preamble is transmitted through one of two antennas, second preamble series is generated, wherein even data of input series of preamble are transformed to zero data, and odd data of aforementioned series are transformed to nonzero data, second series of preamble is transmitted through another antenna.

EFFECT: increased efficiency.

6 cl, 10 dwg

FIELD: electric communications engineering, in particular, engineering of multichannel communication systems.

SUBSTANCE: system for transmitting discontinuous information contains at transmitting side information sources, multipliers, adder, clock generator, Walsh functions generator, 2n keys (where 2n - number of outputs of Walsh functions generator) and frequency splitter, two elements of one-sided conductivity and 2n additional multipliers, and on receiving side - clock generator, Walsh functions generator, multipliers, integrators, information receivers, 2n keys and frequency splitter, two elements of one-sided conductivity and 2n additional multipliers. As a new addition, on transmitting side two one-sided conductivity elements are inserted and 2n additional multipliers, and on receiving side - two one-sided conductivity elements and 2n additional multipliers.

EFFECT: decreased frequency band due to decreased effective width of channel carriers spectrum.

6 dwg, 1 tbl

FIELD: engineering of communication systems, using multi-access layout based on orthogonal multiplexing circuit with frequency division.

SUBSTANCE: communication system divides whole range of frequencies onto a set of sub-frequency ranges. Receiver of information about quality of channels receives information about quality of channels for each one of a set of frame cells, occupied during first time span by a set of frequency-time cells, occupied by second time span and a given number of sub-frequency ranges, transferred via check communication channel from receiver. Module for sorting frame cells analyzes information about quality of check communication channels and sorts frame cells in accordance to information about quality of channels. Module for assigning sub-channels, if transfer data exist, transfers data through a frame cell with best channel quality among other frame cells.

EFFECT: increased data transfer speed.

5 cl, 6 dwg

FIELD: electric radio engineering, possible use for increasing quality of electric communication, especially in multi-frequency wireless communication systems.

SUBSTANCE: method for decreasing ratio of peak signal power to its average ratio PAPR in multi-frequency communication systems, in which information symbol is formed by a set of signals, each one of which is centered on one of multiple bearing frequencies, is characterized by the fact that in transmitter a set of bearing frequencies is divided on several sections - subsets of bearing frequencies, information symbol, PAPR value of which does not exceed required threshold PAPR0, is transferred via all carriers, information symbol, value PAPR of which exceeds required threshold PAPR0 is divided on several sub-symbol sections, while number of these sections equals number of sub-carrier subsets, each section of symbol is transferred same as full symbol, wherein data are only transferred on one group of carriers, while other carriers are not modulated, in receiver, arrival of incomplete symbol is identified by analysis of amplitudes of carrier signals, which are not modulated in case of symbol division. Multi-frequency communication system is characterized by construction of receiver and transmitter, adapted for execution of operations, included in proposed method.

EFFECT: preservation of high channel capacity with simplified correction procedure.

2 cl, 12 dwg

FIELD: the invention refers to the field of radio technique and may be used for transmission of information with the aid of signals with orthogonal frequency multiplexing.

SUBSTANCE: the technical result is in increasing accuracy of synchronization of signals with orthogonal frequency multiplexing and that in its turn provides reduction of error possibility at reception of these signals even in such complex propagation conditions as shot-wave range channels. For this in the receiving set of the known equipment two memory blocks, two commutators, a maximum choice selection block, a meter and a time intervals calculation block are introduced.

EFFECT: increases accuracy of signals.

6 dwg

Up!