RU2338321C2 - Device and method of okpkrs codes assignment and i/q channels for reduction of ratio of peak and average power during transmission of data by means of improved dedicated channels of ascending communication line in wcdma systems - Google Patents

Abstract

FIELD: radio engineering.

SUBSTANCE: in user terminal (UE), when physical channels for data transmission EUDCH are sent bypassing existing physical channels, ratio of peak and average powers (PAPR) of transport signal of ascending communication line is increased. Increase of PAPR depends on orthogonal codes with alternating coefficient of spectrum expansion (OKPKRS), which are assigned to corresponding physical channels and in-phase/quadrature (I/Q) channels.

EFFECT: minimisation of PAPR increase, stipulated by EUDCH channel by means of assignment of spectrum expansion coefficient to transmission channels.

55 cl, 5 dwg, 23 tbl

Description

Technical field

The present invention, in General, relates to a communication system for broadband code division multiple access (WCDMA) and, in particular, to a device and method for minimizing the increase in the ratio of peak and average power (PAPR) of the transmitted signal when transmitting data through an enhanced dedicated uplink transport channel communication lines (EUDCH).

Those. the present invention provides an apparatus and method for assigning an optimal orthogonal variable spreading coefficient (SCCR) code and an in-phase / quadrature (I / Q) channel for uplink physical channels of the EUDCH service.

Description of the Related Art

Currently, the uplink of a WCDMA system includes a dedicated physical data channel (DPDCH) and a dedicated physical control channel (DPCCH) as typical dedicated physical channels used to transmit user signals. DPDCH is a data transport channel for transmitting user data such as voice and images, and DPCCH is a control information transport channel for transmitting DPDCH frame format information and pilot information for demodulating the DPDCH and power control.

Recently, technology has been proposed using the EUDCH, which is an advanced uplink transport channel for data only, in order to increase the speed and efficiency of uplink packet data.

FIG. 1 illustrates information transmitted between user terminals (UEs) and a Node B for performing uplink transmission.

According to FIG. 1, UE 110, 112, 114 and 116 transmit packet data with different transmit power in accordance with their distance from the node B 100. UE 110, which is located at the greatest distance from the node B 100, transmits packet data with the highest transmit power 120 for the channel uplink, while UE 114, which is located at the shortest distance from Node B, transmits packet data with the lowest transmit power 124 for the uplink channel. To improve the performance of the mobile communication system, the Node B 100 may perform scheduling such that the transmit power level on the uplink channel should be inversely proportional to the data rate. Those. node B designates the lowest data rate for the UE having the highest transmit power on the uplink channel, and assigns the highest data rate for the UE having the lowest transmit power on the uplink channel.

FIG. 2 illustrates information transmitted between a UE and a Node B to perform uplink transmission. Those. FIG. 2 illustrates the basic procedure required between the Node B 200 and the UE 202 for packet data through the EUDCH.

According to FIG. 2, in step 210, an EUDCH is established between the Node B 200 and the UE 202. Step 210 includes a process for transmitting / receiving messages via a dedicated transport channel. After step 210, the UE 202 transmits in step 212 information about the required data rate indicating the state of the uplink channel to the node B 200. Information indicating the state of the uplink channel includes the transmit power on the uplink channel transmitted by the UE 202 , and transmit power margin of UE 202.

The Node B 200 receiving the transmit power on the uplink channel may estimate the state of the downlink channel by comparing the transmit power with the receive power of the uplink channel. Those. the node B 200 evaluates the state of the uplink channel as optimal if the difference between the transmit power on the uplink channel and the reception power on the uplink channel is small, and evaluates the state of the uplink channel as non-optimal if the difference between the transmit power and reception power significant. When the UE transmits transmit power headroom to evaluate the state of the uplink channel, the Node B 200 can estimate the power power of the uplink channel by subtracting the headroom of transmit power from the known maximum transmit power of the UE. The Node B 200 determines the possible maximum data rate of the uplink packet channel of the UE 202 using the estimated channel status of the UE 202 and the data rate information required by the UE 202.

The determined possible maximum data rate is reported to the UE 202 in step 214. The UE 202 determines the data rate for the packet data in the range of the reported possible maximum data rate and transmits the packet data to the Node B 200 at the determined data rate in step 216.

In this case, the uplink physical channels supporting the EUDCH service include a dedicated physical data channel (DPDCH), a dedicated physical control channel (DPCCH), a high-speed dedicated physical control channel (HS-DPCCH) for the HSDPA service, an enhanced dedicated physical data channel (E-DPDCH) for EUDCH service and Enhanced Dedicated Physical Control Channel (E-DPCCH) for EUDCH service.

Those. in step 216, the UE 202 transmits an E-DPCCH, which is a control channel for providing a frame format and channel coding information of an E-DPDCH, and transmits packet data by E-DPDCH. In this case, the E-DPCCH can also be used to transmit the uplink data rate required by the UE 202 and the transmit power margin and the pilot information required by the B 200 to demodulate the E-DPDCH.

If the UE 202 additionally transmits separate physical channels in addition to the existing physical channels in order to transmit EUDCH packet data as described above, the number of physical channels transmitted on the uplink increases, leading to an increase in the peak to average power ratio (PAPR) of the transmission signal on the uplink. In general, PAPR increases as the number of simultaneously transmitted physical channels increases.

Since an increase in PAPR can increase the distortion of transmission signals and the acceptable adjacent channel leakage power ratio (ACLR), the radio frequency (RF) power amplifier in the UE requires a load reduction, which reduces the input power of the amplifier to prevent the above problem. If the UE performs a load reduction, the load reduction leads to a decrease in the receiving power in the receiving device of the node B, causing an increase in the error rate of the received data or a reduction in the cellular coverage.

Therefore, in order to prevent an increase in PAPR, the UE seeks to transmit the EUDCH on an existing physical channel, such as time division based DPDCH, instead of transmitting the EUDCH on a separate physical channel. However, the process of transmitting EUDCH over an existing physical channel based on time division causes an increase in implementation complexity.

Taking into account the problem described above, the WCDMA system proposes a method of multiplying physical channels by OPCRS codes satisfying mutual orthogonality before transmitting on the uplink. Physical channels multiplied by OKPCRS codes can be selected in node B.

FIG. 3 illustrates the tree structure of OPCRS codes commonly used in a WCDMA system.

According to FIG. 3, OPCRS codes can be easily generated in the process of computing equations (1) - (3).

Equation (1):

C _{ch, 1.0} = 1

Equation (2):

,

,

Equation (3):

As illustrated in FIG. 3, OPCRS codes are characterized in that they provide orthogonality between codes having the same spreading factor (SF). In addition, for two codes having different SF values, if a code with a higher SF value cannot be generated from a code with a lower SF value, orthogonality between the two codes is achieved using equation (3). This is illustrated below with an example.

For SF = 4, C _{ch, 4.0} = (1, 1, 1, 1) orthogonal with C _{ch, 2.1} = (1, -1), but non-orthogonal with C _{ch, 2.0} = (1, one).

As another example, comparing the OPCRS codes with SF = 256 with C _{ch, 2.1} = (1, 1), since the OCCRS codes with SF = 0 ~ 127 are generated from C _{ch, 2.1} = (1, 1) , orthogonality between them is not provided. That is, if a higher data transfer rate is required, then the OKPCRS code with a lower value is used, and when many physical channels are transmitted simultaneously, the OKPCRS codes must be assigned so that orthogonality is necessarily ensured between them.

Although two physical channels use the same OPCRS code if they are separately transmitted through channel I and channel Q of the transmitting device, the receiving device can separate the signals of the two physical channels without interference and demodulate the separated signals of the physical channels, since the signals transmitted on channel I and channel Q are carried by carriers having a phase difference of 90 °.

As described above, the increase in PAPR of the uplink depends on the number of physical channels simultaneously transmitted on the uplink, the power ratio between the physical channels, the OPCRS code for each physical channel, and the I / Q channel assignment for each physical channel.

In a WCDMA system to which EUDCH technology is applied, if the E-DPCCH and E-DPDCH for transmitting EUDCH packet data are simultaneously transmitted in addition to the uplink channels, the PAPR is undesirably increased.

SUMMARY OF THE INVENTION

Therefore, it is an object of the present invention to provide an apparatus and method for transmitting a UE for efficiently transmitting packet data through an enhanced uplink in a mobile communication system.

Another object of the present invention is to provide an apparatus and method for assigning OPCRS codes and I / Q channels to minimize an increase in PAPR of an uplink transmission signal in a mobile communication system supporting an uplink.

Another objective of the present invention is to provide an apparatus and method for assigning I / Q channels and OPCRS codes for E-DPDCH and E-DPCCH to minimize PAPR increase in accordance with the presence / absence of HS-DPCCH and the number of codes for DPDCH.

In accordance with one aspect of the present invention, these problems are solved by a method for transmitting packet data in a mobile communication system supporting the transmission of packet data over an enhanced uplink, the method including the steps of: generating a dedicated physical control channel (DPCCH) s using an orthogonal code with a variable spreading coefficient of the spectrum (OPCRS) (256, 0) and a quadrature (Q) channel; generating a dedicated physical data channel (DPDCH) using an OPCRS code (SF _DPDCH , SF _DPDCH / 4) and in-phase (I) channel, where SF _DPDCH denotes a _DPDCH spreading factor; generating the E-DPCCH using the CCCH code (SF _E-DPCCH , 1) and channel I, where SF _E-DPCCH denotes the spreading factor of the CCCH code to be assigned to the E-DPCCH to support packet data transmission on the enhanced uplink communication; generate the E-DPDCH using the OPCRS code (SF _E-DPDCH , SF _E-DPDCH / 2) and the Q channel, where SF _E-DPDCH denotes the value of the spreading coefficient (SF) of the OCCRS code to be assigned to the E-DPDCH , and SF _E-DPDCH greater than 4; forming one complex symbol stream by summing the generated channels I and Q and scrambling the complex symbol stream; and transmitting the scrambled complex symbol stream through an antenna.

In accordance with another aspect of the present invention, these tasks are achieved by a method of transmitting packet data on an uplink in a mobile communication system supporting the transmission of packet data on an advanced uplink, the method including the steps of: generating dedicated physical channels and dedicated physical control channel to support high-speed downlink packet service using variable-coefficient orthogonal codes asshireniya spectrum; generating dedicated physical channels for transmitting packet data over the enhanced uplink using OPCRS codes not used by the physical channels; forming one complex symbol stream by summing channel I and channel Q of the generated channels and scrambling the complex symbol stream; and transmitting the scrambled complex symbol stream through an antenna.

Brief Description of the Drawings

The above and other objectives, features and advantages of the present invention are explained in the following detailed description with reference to the drawings, which show the following:

FIG. 1 is a diagram illustrating user terminals (UEs) performing uplink transmission and a node B;

FIG. 2 is a diagram illustrating information exchanged between a UE and a Node B to perform uplink transmission;

FIG. 3 is a diagram illustrating a tree structure of common codes of the OPCRS;

FIG. 4 is a diagram illustrating a structure of a transmitter UE according to an embodiment of the present invention; and

FIG. 5 is a diagram illustrating a result of comparing PAPR relationships between physical channels according to an embodiment of the present invention.

Detailed Description of a Preferred Embodiment

In the following, several preferred embodiments of the present invention are described in detail with reference to the drawings. In the following description, a detailed description of known functions and configurations incorporated herein is omitted for brevity.

The present invention provides a method for assigning OPCRS codes and I / Q channels to minimize the increase in PAPR of an uplink transmission signal in a WCDMA system supporting an EUDCH data service. Those. the present invention provides a method for assigning OPCRS codes and I / Q channels, optimized for the case where the E-DPCCH, which is the control channel, and the E-DPDCH, which is the data channel for transmitting EUDCH packet data, are transmitted in addition to the existing physical channels. To increase the data rate in the EUDCH and minimize the increase in PAPR, the present invention provides a method for assigning OPCRS codes and I / Q channels to minimize the increase in PAPR while maintaining orthogonality between existing DPCCH, DPDCH and HS-DPCCH channels.

In the used Rel-5 WCDMA standard, the assignment of OPCRS codes and I / Q channels for the HS-DPCCH is performed in such a way as to reduce the PAPR taking into account the maximum number of DPDCHs transmitted, determined when the radio link was established between the UE and the Node B.

Therefore, the assignment of OPCRS codes and I / Q channels for E-DPDCH and E-DPCCH channels, proposed in the present invention, is performed taking into account the maximum number of DPDCH channels transmitted on the radio link and HS-DPCCH transmission / non-transmission channels for physical Rel channels -5. In the EUDCH service, several physical E-DPDCHs can be transmitted simultaneously because they support high-speed data transmission. However, in general, it is sufficient to transmit one E-DPCCH, which is the physical control channel.

Those. in order to reduce the increase in PAPR of the uplink transmission signal, the present invention supports the EUDCH in consideration of backward compatibility with the existing WCDMA system. The reason is that serious problems can arise in the initial call setup or handover processes when the Node B is not consistent with each other regarding the version due to the incompatibility of the DPDCH and DPCCH standard.

In other words, the present invention provides a method for assigning OPCRS codes and I / Q channels, optimized to minimize PAPR increase for EUDCH-related physical channels while maintaining the Rel-5 WCDMA standard used for DPDCH and DPCCH, which are the base physical channels of the uplink communication.

Firstly, provided that existing uplink channels such as DPCCH, DPDCH and HS-DPCCH are assigned OPCRS codes and I / Q channels, as defined in the current standard, in the way of assigning OPCRS codes and I / Q channels by storing fully compatible with the existing Rel-5 WCDMA system, the present invention provides a method for assigning OPCRS codes and I / Q channels, optimized for the case when under this condition additionally transmitted E-DPCCH and E-DPDCH, which are physical channels for transmitting EUDCH packet data .

Secondly, the case is considered when the compatibility with the HS-DPCCH is partially lost, while the compatibility with the existing DPDCH and DPCCH is maintained. In the current Rel-5 WCDMA standard, if the maximum number of transmitted DPDCHs is equal to one, the HS-DPCCH is transmitted on the Q channel using the OPCRS code (256, 64). In this case, since the E-DPDCH cannot use the OPCRS code (4, 1) on the Q channel, the maximum data rate on the EUDCH is accordingly limited. To solve this problem, the present invention provides a code assignment rule for HS-DPCCH, E-DPCCH, and E-DPDCH in such a way as to enable E-DPDCH to use the OPCRS code (4, 1) in the Q channel and reduce the PAPR of the transmission signal of the UE.

Thirdly, in the Rel-6 standard, even the case of a separate EUDCH channel is considered when the DPDCH channel is not transmitted on the uplink, but only the E-DPDCH channel is transmitted. Therefore, the present invention provides a rule for assigning OPCRS codes and I / Q channels for HS-DPCCH for the case of using only the EUDCH channel.

In the above methods, the assignment of I / Q channels and OPCRS codes for the HS-DPCCH depends on the maximum number of DPDCHs transmitted, and the number of E-DPDCHs does not affect the assignment rule for the HS-DPCCH. This is because the E-DPDCH is not always transmitted, but only if there is data in the data buffer of the EUDCH of the user terminal UE. Therefore, with regard to PAPR, it is preferable to set a rule for assigning OPCRS codes and I / Q channels for the HS-DPCCH, taking into account only the DPDCH according to the current standard.

FIG. 4 illustrates a structure of a transmitter of a user terminal UE according to an embodiment of the present invention.

1. DPCCH

Channel DPCCH is assigned an OPCRS code (256, 0) in channel Q according to the existing rules for assigning Rel-99 and Rel-5 channels. (256, 0) is equal to the OPCRS code C _{ch, 256.0} , illustrated in FIG. 3. I.e. in FIG. 4, the DPCCH is multiplied by the OPCRS code C _{ch, 256.0} to expand the spectrum after BPSK modulation and then multiplied by the transmission gain β _c . β _{c is} set by the network according to the speed or the required quality of service level of data transmitted by the UE.

The DPCCH signal is added to the signals of other channels transmitted via the Q channel, multiplied by the scrambling code S _{dpch, n} and then transmitted through the antenna using a transmission pulse shaping filter and an RF cascade.

2. DPDCH

According to the channel assignment rule defined in the existing standard, if the SF value of the DPDCH channel is denoted by SF _DPDCH , then the DPDCH channel is expanded by an OPCRS code (SF _DPDCH , SF _DPDCH / 4) in channel I. FIG. 4 c _d denotes the OPCRS code for the DPDCH. The present invention assumes that when the physical channels associated with the EUDCH service are transmitted together with the DPDCH, only a maximum of one DPDCH channel is transmitted.

3. HS-DPCCH

Similarly, this channel follows the existing Rel-5 standard and is transmitted only when a downlink HSDPA service is received. As shown in FIG. 4, when only one DPDCH is transmitted on the uplink, the HS-DPCCH is expanded with an OPCRS code (256, 64) in the Q channel.

4. E-DPCCH

The E-DPCCH, which is the physical control channel for the EUDCH service, transmits the buffer status of the user terminal UE or transmits transmit power on the uplink, transmit power margin on the uplink, and channel status information (CSI) that node B needs for Estimates the state of the uplink channel. The E-DPCCH channel transmits a transport format and resource indicator (E-TFRI) for the EUDCH service transmitted on the E-DPDCH.

If the SF value of the E-DPCCH channel is designated as SF _E-DPCCH , then the E-DPCCH channel is expanded by the OKPCRS code (SF _E-DPCCH , 1) in channel I. Moreover, the OKPCRS codes and I / Q channels are assigned to the E-DPCCH channel without restrictions.

In an alternative method, the E-DPCCH channel uses the OPCRS code (SF _E-DPCCH , 1) in the Q channel, in contrast to the DPCCH channel transmitted using the OPCRS code (256, 1) on the I channel.

In another alternative method, an E-DPCCH is assigned to the Q channel when the DPDCH is not set and the HS-DPCCH is set. In this case, the OKPCRS code (SF _E-DPCCH , 1) or (SF _E-DPCCH , SF _E-DPCCH / 8) is suitable for the E-DPCCH.

In yet another alternative method, when the DPDCH is not set, the E-DPCCH can be assigned to the Q channel regardless of the establishment / non-establishment of the HS-DPCCH. In this case, the OKPCRS code (SF _E-DPCCH , 1) or (SF _E-DPCCH , SF _E-DPCCH / 8) is suitable for the E-DPCCH.

This rule is always applicable regardless of the HS-DPCCH channel transmission / non-transmission and the number of E-DPDCH channels. In this case, the values 8, 16, 32, 64, 128 and 256 are available for SF _E-DPCCH , and the value of SF _E-DPCCH , which should be actually used, is determined taking into account the amount of information that must be transmitted on the channel E-DPCCH.

In the case where the DPDCH is not set and the HS-DPCCH is set for channel I (256, 1), even if SF _E-DPCCH = 256, the E-DPCCH cannot be assigned (SF _E-DPCCH , 1). Therefore, the E-DPCCH cannot be assigned for channels I from (SF _E-DPCCH , 2) to (SF _E-DPCCH , SF _E-DPCCH / 8). Those. assigning an E-DPCCH for channels I from (SF _E-DPCCH , 2) to (SF _E-DPCCH , SF _E-DPCCH / 8) is most effective for obtaining a low PAR value. However, 32, 64, 128 and 256 are available for SF _E-DPCCH .

According to FIG. 4, the EUDCH transmission controller 402 transmits control information via the E-DPCCH, which is necessary for the Node B to receive the E-DPDCH. In FIG. 4 c _{ch, SF, 1} denotes the OPCRS code for the E-DPCCH, multiplied by the transmit symbol, so that the corresponding channel is orthogonal with other physical channels. In addition, the transmission gain β _{E-DPCCH of} the E-DPCCH, as well as the coefficients of other physical channels, is set according to the speed or the required level of quality of service for data transmitted by the user terminal UE.

5. E-DPDCH

The E-DPDCH, which is a dedicated physical data channel for the EUDCH service, transmits EUDCH packet data using a data rate determined based on scheduling information provided from the Node B. The E-DPDCH supports not only BPSK, but also QPSK and 8PSK in order to increase the data transfer rate while maintaining the number of simultaneously transmitted spreading codes.

According to FIG. 4, E-DPDCH as an example simultaneously transmits two channels E-DPDCH1 E-DPDCH2. It is obvious that the number of used physical channels E-DPDCH depends on the transmission rate of packet data EUDCH. In addition, the EUDCH transmission controller 402 determines the number of E-DPDCHs transmitted simultaneously and the SF value.

In other words, when the data transfer rate is small, the E-DPDCH is expanded using an OPCRS code having a relatively large SF value so that it can be transmitted using a single E-DPDCH. However, when the data rate is high, the SF value of the _E-DPCCH is set to 4 or 2, so that EUDCH packet data is transmitted through one or two E-DPDCHs.

Those. the EUDCH packet transmitter 404 transmits transmission data on the EUDCH via the E-DPDCH1 under the control of the EUDCH transmission controller 402. Alternatively, the E-DPDCH2 channel, if necessary, is also assigned for transmission. The EUDCH data buffer 400 is a buffer for storing EUDCH data to be transmitted. EUDCH data to be transmitted via E-DPDCHs is delivered to the EUDCH packet transmitter 404 under the control of the EUDCH transmission controller 402.

The following is a description of methods for assigning OPCRS codes and I / Q channels for E-DPDCH channels according to several embodiments of the present invention.

First Embodiment

The first embodiment provides methods for assigning OPCRS codes and I / Q channels for E-DPDCHs without regard to DPDCHs. The proposed methods make it possible to reduce PAPR by appropriately adjusting the minimum spreading factor for E-DPDCH channels and the number of transmission channels according to the EUDCH data rate. Moreover, for convenience of description, the methods are divided into method A, method B and method C, taking into account SF _E-DPCCH , set based on the data rate.

Method A corresponds to the case where the _E-DPCCH SF for the E-DPDCHs is set to 4 or higher.

1. One E-DPDCH is transmitted

The E-DPDCH1 channel transmits EUDCH transmission symbols through the Q channel using the OPCRS code (SF _E-DPDCH , SF _E-DPDCH / 2). The values 4, 8, 16, 32, 64, 128 and 256 are available for SF _E-DPCCH . In FIG. 4 c _ed1 denotes the _OPCRS code used for E-DPDCH1. The E-DPDCH1 with the OKPCRS code so assigned satisfies orthogonality with other physical channels. Those. Compared to DPDCH transmitted on channel I, channel E-DPDCH1 allows you to reduce its PAPR ratio when transmitting on channel Q.

2. Two E-DPDCH channels are transmitted

When the _E-DPDCH SF for E-DPDCH1 and E-DPDCH2 is 4, the E-DPDCH1 and E-DPDCH2 channels are expanded using the OPCRS code (4, 2) and then transmitted simultaneously through channel Q and channel I, respectively. Those. E-DPDCH1 is assigned to channel Q, and E-DPDCH2 is assigned to channel I. Moreover, EUDCH packet data is transmitted using a 4th or higher order modulation scheme such as QPSK, 8PSK and 16QAM.

и (+1, ±1).For example, when QPSK modulation is used, the characters transmitted by E-DPDCH1 and E-DPDCH2 are transmitted in four possible combinations (± 1, +1), and when 8PSK is used, characters transmitted by E-DPDCH1 and E-DPDCH2 are transmitted in eight possible combinations

and (+1, ± 1).

If the desired EUDCH data rate cannot be achieved, although two channels E-DPDCH1 and E-DPDCH2 are transmitted simultaneously using SF _E-DPDCH = 4, you can enable data transmission at a higher speed by setting the SF _E-DPDCH to 2. That is, if SF _E-DPDCH for channels E-DPDCH1 and E-DPDCH2 is 2, then E-DPDCH1 and E-DPDCH2 are expanded using the OPCRS code (2, 1) and then simultaneously transmitted on channel Q and channel I , respectively.

When it is necessary to transmit several physical E-DPDCHs in this way, it is possible to significantly reduce PAPR by dividing by two numbers of transmitted E-DPDCHs compared with the case when the minimum spreading factor is 4.

Method B is similar to Method A described above, but assigns OPCRS codes in such a way that when only E-DPDCH1 is transmitted, SF _{E-DPDCH is} set to a minimum of 2.

1. One E-DPDCH is transmitted

When only E-DPDCH1 is transmitted, the values 2, 4, 8, 16, 32, 64, 128 and 256 are available for SF _E-DPCCH . The E-DPDCH1 is assigned to the Q channel using the CCCH code (SF _E-DPDCH , SF _E-DPDCH / 2).

2. Two E-DPDCH channels are transmitted

Channels E-DPDCH1 and E-DPDCH2 are expanded using the OPCRS code (2, 1) and then transmitted simultaneously on channel Q and channel I, respectively. In this case, EUDCH packet data is transmitted using a 4th or higher order modulation scheme such as QPSK, 8PSK and 16QAM.

Method C is similar to Method A above, but assigns OPCRS codes so that SF _E-DPDCH for E-DPDCH1 is set to 2 and SF _E-DPDCH for E-DPDCH2 is set to 4 if the required EUDCH data rate cannot be reached although two channels E-DPDCH1 and E-DPDCH2 are transmitted simultaneously using SF _E-DPDCH = 4.

1. One E-DPDCH is transmitted

When the SF _E-DPDCH for E-DPDCH1 is 4 or more, the EUDCH transmission symbols are transmitted through the Q channel using the OPCRS code (SF _E-DPDCH , SF _E-DPDCH / 2). The values 4, 8, 16, 32, 64, 128 and 256 are available for SF _E-DPCCH .

2. Two E-DPDCH channels are transmitted

When the SF of the _E-DPDCH for E-DPDCH1 and E-DPDCH2 is 4, the E-DPDCH1 and E-DPDCH2 channels are expanded using the OPCRS code (4, 2) and then transmitted simultaneously through channel Q and channel I, respectively. If the desired EUDCH data rate cannot be achieved even though two channels E-DPDCH1 and E-DPDCH 2 are transmitted simultaneously, SF _E-DPDCH for E-DPDCH1 and SF _E-DPDCH for E-DPDCH2 are set to different values.

Those. since the SF _E-DPDCH for E-DPDCH1 is 2 and the SF _E-DPDCH for E-DPDCH2 is 4, the data carried on the respective channels are independently modulated by the BPSK before transmission. Therefore, the characters transmitted on the E-DPDCH1 and E-DPDCH2 channels are expanded before transmission using the OPCRS codes (2, 1) and (4, 2) in channel Q and channel I, respectively.

In addition, when the data rate cannot be achieved as described above, the SF _E-DPDCH for channel E-DPDCH1 is set to 2 and SF _E-DPDCH for channel E-DPDCH2 is set to 2 for transmission. Those. E-DPDCH2 and E-DPDCH1 channels are expanded using the OPCRS code (2, 1) and then simultaneously transmitted on channel I and channel Q, respectively. In this case, EUDCH packet data may be transmitted using a 4th or higher order modulation scheme such as QPSK, 8PSK and 16QAM.

Method D is a method for assigning an OPCRS code (4, 1) to an additional E-DPDCH to increase the transmission speed of EUDCH packet data when DPDCH and HS-DPCCH are not transmitted or when using the OPCRS code generated from the OCCPC (4, 0 ), although the HS-DPCCH is transmitted. This is because the HS-DPCCH is transmitted only for the HSDPA service. In addition, this is due to the fact that when there is no data to be transmitted via the DPDCH, the DPDCH is sometimes used only to transmit signaling information and may not be transmitted at other times. In the standard following Rel-5 WCDMA, it is possible that a DPDCH is not set, but only an E-DPDCH is set.

1. Two or less E-DPDCH channels are transmitted

The aforementioned method A, method B, or method C may be used.

2. Three E-DPDCH channels are transmitted

If the HS-DPCCH is not transmitted, then the E-DPDCH3 channel is transmitted through the Q channel using the OPCRS code (4, 1).

Alternatively, when the HS-DPCCH is transmitted and the DPDCH is not transmitted, the E-DPDCH3 is transmitted through the channel I using the OPCRS code (4, 1).

3. Four or more E-DPDCH channels are transmitted

Channel I and channel Q use the OPCRS code for transmission (4, 1). This applies when the OPCRS code (4, 1) is not used by DPDCH and HS-DPCCH.

In other words, when both HS-DPCCH and DPDCH are not transmitted, the third and fourth E-DPDCHs are transmitted through channel I and channel Q using the OPCRS code (4, 1), respectively. Even when the DPDCH is not set and the HS-DPCCH is transmitted using the OPCRS code generated from the OCCRS code (4, 0), the OCCRS code (4, 1) is never used for channels I and Q. Therefore, the third and fourth channels can be transmitted E-DPDCH on I / Q channels using the OPCRS code (4, 1).

Second Embodiment

The second embodiment offers methods for applying the rule for assigning codes of OPCRS and I / Q channels for the E-DPDCH in another way, taking into account the establishment / non-establishment of the HS-DPCCH.

The second embodiment provides a method for initially assigning the E-DPDCH to channel I when the HS-DPCCH is set for the OPCRS code (256, 64) in channel Q, thereby reducing PAPR. The second embodiment is preferred in that it significantly reduces PAPR when the HS-DPCCH has more power than the power of the DPDCH when the UE is close to the cell boundary.

When the HS-DPCCH is not set, OKPCRS codes are assigned as follows.

1. One E-DPDCH is transmitted

The E-DPDCH channel transmits EUDCH transmission symbols on the Q channel using the OPCRS code (SF _E-DPDCH , SF _E-DPDCH / 4). The values 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPCCH .

If the data rate of the EUDCH cannot be fully achieved despite using SF _E-DPDCH = 4, the E-DPDCH uses QPCRS code (2, 1) on channel Q with SF _E-DPDCH = 2 instead of its OKPCRS code ( SF _E-DPDCH , SF _E-DPDCH / 4).

2. Two E-DPDCHs are transmitted

When the _E-DPDCH SF for the E-DPDCH is set to 2, the E-DPDCH1 is transmitted on the Q channel using the OPCRS code (2, 1), and the E-DPDCH2 channel is transmitted on the I channel using the OCCRS code (2, 1) .

Alternatively, the E-DPDCH1 channel is transmitted on the Q channel using the OPCRS code (2, 1), and the E-DPDCH2 channel is transmitted on the I channel using the OCCRS code (4, 2). In this case, if the desired EUDCH data rate cannot be achieved, SF _E-DPDCH for E-DPDCH2 is set to 2, and the OKPCRS code (2, 1) is used instead of the OKPCRS code (4, 2) to transmit the E-DPDCH2 channel .

3. Three E-DPDCHs are transmitted

When the E-DPDCH1 channel is transmitted on the Q channel using the OPCRS code (2, 1) and the E-DPDCH2 channel is transmitted on the I channel using the OCCRS code (2, 1), the E-DPDCH3 channel is transmitted on the Q channel using the OCCRS code ( 4, 1).

4. Four E-DPDCHs transmitted

Channel E-DPDCH4 is transmitted on channel I using the OPCRS code (4, 1).

Moreover, the case when the OKPCRS code (4, 1) can be used on channel I and channel Q corresponds to the case when the OKPCRS code (4, 1) is not used by DPDCH and HS-DPCCH. Those. in the case when the DPDCH channel is not installed, or when the DPDCH channel corresponds to the E-DPDCH channel along the length of the radio frame, although the DPDCH channel is installed, the E-DPDCH4 channel is transmitted on channel I using the OPCRS code (4, 1) in addition to the E- channels DPDCH1, E-DPDCH2, and E-DPDCH3 in a transmission time interval (TTI) during which a DPDCH is not transmitted.

However, when the HS-DPCCH is set to (Q, 256, 64), the following method of assigning the OPCRS code is used.

1. One E-DPDCH is transmitted

The E-DPDCH1 channel transmits EUDCH transmission symbols through the I channel using the OPCRS code (SF _E-DPDCH , SF _E-DPDCH / 2). The values of 2, 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPCCH .

2. Two E-DPDCHs are transmitted

E-DPDCH1 is transmitted on channel I using the OKPCRS code (2, 1) and E-DPDCH2 is transmitted on channel Q also using the OKPCRS code (2, 1).

Third Embodiment

The third embodiment uses the same method of assigning the OPCRS code as in the second embodiment when the HS-DPCCH is not set. However, the third embodiment is characterized in that it first assigns the E-DPDCH to the Q channel instead of the I channel in which the HS-DPCCH is set for (Q, 256, 64).

When the HS-DPCCH is not set, the third embodiment uses the same OKPCRS code assignment method as in the second embodiment.

However, when the HS-DPCCH is set to (Q, 256, 64), the following method of assigning the OPCRS code is used.

1. One E-DPDCH is transmitted

E-DPDCH1 uses (SF _E-DPDCH , SF _E-DPDCH / 2) on channel Q, and the values 2, 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPDCH .

2. Two E-DPDCHs are transmitted

When the SF _E-DPDCH for E-DPDCH is set to 2, channel E-DPDCH1 is transmitted on channel Q using the OPCRS code (2, 1), and channel E-DPDCH2 is transmitted on channel I using the OCCRS code (2, 1).

Alternatively, the E-DPDCH1 channel is transmitted on the Q channel using the OPCRS code (2, 1), and the E-DPDCH2 channel is transmitted on the I channel using the OCCRS code (4, 2). In this case, if the desired EUDCH data rate cannot be achieved, the SF _E-DPDCH for the E-DPDCH2 channel is set to 2, and the OKPCRS code (2, 1) is used instead of the OKPCRS code (4, 2) to transmit the E- channel DPDCH2.

3. Three E-DPDCHs are transmitted

In the case when the DPDCH is not installed, or in the case where the DPDCH corresponds to the E-DPDCH along the length of the radio frame, although the DPDCH is installed, the E-DPDCH3 is transmitted on the Q channel using the OPCRS code (4, 1) in addition to E-DPDCH1 and E-DPDCH2, transmitted on channels I and Q using the OPCRS code (2, 1), in the TTI interval during which the DPDCH is not transmitted on channel I.

Fourth Embodiment

A fourth embodiment provides a method of reducing PAPR and efficiently using OPCRS codes for the case when the DPDCH is not set, or for the case where the E-DPDCH corresponds to the DPDCH, if it is set, along the length of the radio frame, in the case when the HS-DPCCH is set for the OPCRS code (256, 64) on the Q channel. The method of assigning I / Q channels and OPCRS codes used for the E-DPDCH channel varies according to the presence / absence of DPDCH channels transmitted in the current TTI interval.

1. One E-DPDCH is transmitted

When DPDCHs are transmitted in the current TTI interval, E-DPDCH1 uses (SF _E-DPDCH , SF _E-DPDCH / 2) on channel Q, and values 2, 4, 8, 16, 32, 64, 128, 256 and 512 Available for SF _E-DPDCH .

However, when the DPDCH is not transmitted in the current TTI interval, an OKPCRS code (SF _E-DPDCH , SF _E-DPDCH / 4) is used on channel I, and values 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPDCH . In this case, to further increase the data rate of the EUDCH, the E-DPDCH is transmitted using the OKPCRS code (2, 1) instead of the OKPCRS code (SF _E-DPDCH , SF _E-DPDCH / 4).

2. Two E-DPDCHs are transmitted

When the SF _E-DPDCH for E-DPDCH is set to 2, channel E-DPDCH1 is transmitted on channel Q using the OPCRS code (2, 1), and channel E-DPDCH2 is transmitted on channel I using the OCCRS code (2, 1).

Alternatively, the E-DPDCH1 channel is transmitted on the Q channel using the OPCRS code (2, 1), and the E-DPDCH2 channel is transmitted on the I channel using the OCCRS code (4, 2). In this case, if the desired EUDCH data rate cannot be reached, then the _E-DPDCH SF for the E-DPDCH2 channel is set to 2, and the OKPCRS code (2, 1) is used instead of the OKPCRS code (4, 2) for transmitting the E channel -DPDCH2.

3. Three E-DPDCHs are transmitted

In addition to the E-DPDCH1 and E-DPDCH2 channels transmitted on Q and I channels using the OKPCRS code (2, 1), the E-DPDCH channel is transmitted on channel I using the OKPCRS code (4, 1) when the DPDCH is not transmitted in the current TTI interval.

Fifth Embodiment

A fifth embodiment provides a method for assigning E-DPDCHs when a DPDCH is not set. For E-DPDCHs, the fifth embodiment uses the basic idea of assigning the E-DPDCH1 channel to I / Q channels opposite to the I / Q channels on which the HS-DPDCH is transmitted and allows PAPR reduction when the channel gain for the HS-DPCCH is high .

When the HS-DPCCH is not set, the following E-DPDCH is assigned.

1. One E-DPDCH is transmitted

The E-DPDCH1 channel transmits EUDCH transmission symbols on the I channel using the OPCRS code (SF _E-DPDCH , SF _E-DPDCH / 4). The values 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPCCH . In this case, if the data rate of the EUDCH cannot be fully achieved even when the SF _{E-DPDCH is} set to 4, the SF _{E-DPDCH is} set to 2 and the EUDCH transmission symbols are transmitted on channel I using the OKPCRS code (2, 1) instead OKPCRS code (SF _E-DPDCH , SF _E-DPDCH / 4).

2. Two E-DPDCHs are transmitted

Channel E-DPDCH1 is transmitted on channel I using the OKPCRS code (2, 1) and channel E-DPDCH2 is transmitted on channel Q using the OKPCRS code (2, 1).

3. Three or more E-DPDCHs are transmitted

In addition to the E-DPDCH1 and E-DPDCH2 channels, the E-DPDCH3 and E-DPDCH4 channels transmit EUDCH transmission symbols on channels I and Q using the OPCRS code (4, 1).

However, when the DPDCH is not set, and the HS-DPCCH is set, the HS-DPCCH is more likely to be assigned to channel I.

1. One E-DPDCH is transmitted

The E-DPDCH channel transmits EUDCH transmission symbols on the Q channel using the OPCRS code (SF _E-DPDCH , SF _E-DPDCH / 4). The values 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPCCH . If the data rate of the EUDCH cannot be fully achieved even though SF _E-DPDCH = 4 is used, then SF is set to 2, and channel Q uses the OPCRS code (2, 1).

2. Two E-DPDCHs are transmitted

Channel E-DPDCH1 is transmitted on channel Q using the OKPCRS code (2, 1) and channel E-DPDCH2 is transmitted on channel I using the OKPCRS code (2, 1).

3. Three or more E-DPDCHs are transmitted

In addition to the E-DPDCH1 and E-DPDCH2 channels transmitted on Q and I channels using the OKPCRS code (2, 1), the E-DPDCH3 and E-DPDCH4 channels additionally transmit EUDCH transmission symbols on channels I and Q using the OKPCRS code (4, 1).

According to FIG. 4, the EUDCH transmission controller 402 transmits the data buffer state of the user terminal UE and CSI required to control the scheduling of the Node B to the Node B via the E-DPCCH. An EUDCH transmission controller 402 determines an E-TFRI and transmits a specific E-TFRI to a Node B via an E-DPCCH. E-TFRI is determined using the maximum possible data rate.

The EUDCH packet transmitter 404 receives packet data determined based on the E-TFRI from the EUDCH data buffer 400. Received packet data is channel encoded and modulated using E-TFRI and then transmitted to Node B via E-DPDCH1 and E-DPDCH2 according to an embodiment of the present invention.

The data in the DPDCH channel is expanded on the spectrum at the signal element rate using the OPCRS c _d code in the multiplier 422 and multiplied by the channel gain β _d in the multiplier 424. The DPDCH channel data multiplied by the channel gain β _d is input into the adder 426.

The control information in the E-DPCCH channel is expanded in the spectrum in the multiplier 406 at the transmission rate of the signal elements using the OKPCRS code with _{ch, SF, 1} , i.e. (SF _E-DPCCH , 1) to maintain orthogonality with other physical channels. Next, the output signal of the multiplier 406 is multiplied by the gain of the channel β _ec in the multiplier 408. The control information of the E-DPCCH, multiplied by the gain of the channel β _sc , is supplied to the adder 426.

The packet data provided from the transmitter 404 of the EUDCH packets is converted into a complex stream of symbols I + jQ and then delivered to the multiplier 446 and the multiplier 416 as components of the channels I and Q, respectively. A multiplier 446 extends the spectrum of the packet data to obtain a channel component I of the modulation symbol using the _QPCRS code C _ed2 at the signal element rate. The output of the multiplier 446 is multiplied by the gain of the channel β _ed2 in the multiplier 448. The adder 426 generates the channel I by summing the data of the DPDCH, the control information of the E-DPCCH and the data of the E-DPDCH2.

The control information of the DPCCH channel is expanded in the spectrum in the multiplier 428 at the transmission speed of the signal elements using the code OPCRS (256, 0), i.e. c _{ch, 256.0} , and then multiplied by the channel gain β _c in the multiplier 430. DPCCH control information multiplied by the channel gain β _c is supplied to the adder 436.

The control information of the HS-DPCCH channel is expanded in the spectrum in the multiplier 432 using the OPCRS code (256, 64), i.e. c _{ch, 256.64} at the transmission rate of the signal elements, and then multiplied by the channel gain β _hs in the multiplier 434.

The Q component of the EUDCH packet data modulation symbol channel provided by the EUDCH packet transmitter 404 is spread out in a multiplier 416 using a _CPCRC code C _ed1 at a signal element rate. The output of the multiplier 416 is multiplied by the gain of the channel β _ed1 in the multiplier 418. The adder 436 generates the Q channel by summing the control information of the DPDCH, the control information of the HS-DPCCH and the data of the E-DPDCH1. The output of adder 436 is multiplied by the imaginary number in multiplier 438 and then fed to adder 440.

The adder 440 generates a single complex symbol stream by summing the output of the adder 426 and the output of the multiplier 438 and provides the complex symbol stream to the multiplier 450. The multiplier 450 scrambles the complex symbol stream using the scrambling code S _{dpch, 1} . The scrambled complex symbol stream is converted to a pulse signal using a pulse shaping filter 452 and then delivered to node B via an antenna 456 using an RF module 454.

FIG. 5 illustrates a comparison of physical channels with respect to the PAPR reduction effect of FIG. four.

In FIG. 5, reference numeral 40 represents a case where the method of the present invention is used, and reference numerals 41 and 42 represent cases where different OPCRS codes or different I / Q channels are assigned to the E-DPCCH. In this case, the PAPR result was obtained by modeling using the transmission pulse shaping filter 452 and the scrambling code specified in the Rel-5 WCDMA standard, and the channel gain β, in general, was specified in the description of the EUDCH method.

According to FIG. 5, case 40 of the present invention is more optimal than case 41 with respect to the effect of reducing PAPR by about 0.7 dB. In addition, case 40 of the present invention is more optimal than case 42 with respect to the effect of reducing PAPR by about 0.12 dB. Those. the proposed method for assigning OPCRS codes and I / Q channels for E-DPCCH and E-DPDCH channels allows to achieve a relatively low PAPR.

The following is a description of the method for assigning OPCRS codes and I / Q channels for E-DPCCH and E-DPDCH, taking into account the HS-DPCCH transmission / non-transmission, when compatibility with the Rel-5 standard is used and at least one DPDCH is transmitted according to embodiments sixth through eighth.

Sixth Embodiment

1. One or more DPDCHs can be transmitted, and the HS-DPCCH is not transmitted

The method for assigning I / Q channels and OPCRS codes for DPCCH and DPDCH according to the current standard is illustrated in Table 1.

Table 1 Channel Appointment DPCCH (0, 256, 0) DPDCH (I, SF, SF / 4)

Those. the DPCCH is transmitted on the Q channel using the OPCRS code (256, 0), and the DPDCH can be assigned to the I channel using the OCCRS code (SF _E-DPDCH , SF _E-DPDCH / 4). The values 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPDCH .

The method of assigning I / Q channels and OPCRS codes for E-DPCCH and E-DPDCH channels in the present invention, taking into account compatibility with the current standard according to table 1, is illustrated in table 2.

table 2 Channel Appointment E-DPCCH (I, SF _E-DPCCH , 1) E-DPDCH1, E-DPDCH2 (Q, SF, SF / 4), (I, 4, 3) E-DPDCH3, E-DPDCH4 (Q, 4, 3), (I, 4, 2) E-DPDCH5 (Q, 4, 2)

The values 8, 16, 32, 64, 128 and 256 are available for SF _E-DPCCH for the E-DPCCH channel, and the values 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPDCH for channel E-DPDCH.

As illustrated in Table 2, if a maximum of 5 E-DPDCHs can be transmitted and SF = 4 is applied to the E-DPDCH1 channel, then the E-DPDCH1 channel is transmitted on the Q channel using the OKPCRS code (4, 1), and the E-DPDCH2 channel It is transmitted on channel I using the OKPCRS code (4, 3). In addition, the E-DPDCH3 channel is transmitted on the Q channel using the OPCRS code (4, 3) and the E-DPDCH4 channel is transmitted on the I channel using the OCCRS code (4, 2). Finally, the E-DPDCH5 channel is transmitted on the Q channel using the OPCRS code (4, 2).

2. One or more DPDCHs may be transmitted and the HS-DPCCH channel shall be transmitted.

The method of assigning I / Q channels and OPCRS codes for DPCCH, DPDCH and HS-DPCCH channels according to the current standard is illustrated in Table 3.

Table 3 Channel Appointment DPCCH (Q, 256, 0) DPDCH (I, SF, SF / 4) HS-DPCCH (Q, 256, 64)

The method of assigning I / Q channels and OPCRS codes for E-DPCCH and E-DPDCH channels in the present invention, taking into account compatibility with the current standard in Table 3, is illustrated in Table 4.

Table 4 Channel Appointment E-DPCCH (I, SF _E-DPCCH , 1) E-DPDCH1, E-DPDCH2, E-DPDCH3, E-DPDCH4 (Q, SF, SF / 4 + SF / 2), (I, 4, 3) (Q, 4, 2), (I, 4, 2)

The values 8, 16, 32, 64, 128 and 256 are available for SF _E-DPCCH for the E-DPCCH channel, and the values 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPDCH for channel E-DPDCH.

In this case, if a maximum of 4 E-DPDCHs can be transmitted and SF _E-DPDCH = 4 is used, then E-DPDCH1 and E-DPDCH2 are assigned (Q, 4, 3) and (I, 4, 3), respectively. Channel E-DPDCH3 is transmitted on channel Q using the OPCRS code (4, 2) and channel E-DPDCH4 is transmitted on channel I using the OPCRS code (4, 2).

3. A maximum of two DPDCHs can be transmitted, but the HS-DPCCH is not transmitted.

The method for assigning I / Q channels and OPCRS codes for DPCCH and DPDCH according to the current standard is illustrated in Table 5.

Table 5 Channel Appointment DPCCH (Q, 256, 0) DPDCH1, DPDCH2 (I, SF, SF / 4), (0, 4, 1)

The method of assigning I / Q channels and OPCRS codes for E-DPCCH and E-DPDCH channels in the present invention, taking into account compatibility with the current standard in Table 5, is illustrated in Table 6.

Table 6 Channel Appointment E-DPCCH (I, SF _E-DPCCH , 1) E-DPDCH1, E-DPDCH2, E-DPDCH3, E-DPDCH4 (Q, SF, SF / 4 + SF / 2), (I, 4, 3) (Q, 4, 2), (I, 4, 2)

The values 8, 16, 32, 64, 128 and 256 are available for SF _E-DPCCH for the E-DPCCH channel, and the values 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPDCH for channel E-DPDCH.

In this case, if a maximum of 4 E-DPDCHs can be transmitted and SF _E-DPDCH = 4 is used, then E-DPDCH1 and E-DPDCH2 are assigned using (Q, 4, 3) and (I, 4, 3), respectively. Channel E-DPDCH3 is transmitted on channel Q using the OPCRS code (4, 2) and channel E-DPDCH4 is transmitted on channel I using the OPCRS code (4, 2).

4. A maximum of two DPDCH channels can be transmitted and an HS-DPCCH channel is transmitted.

The method for assigning I / Q channels and OPCRS codes for DPCCH, DPDCH and HS-DPCCH channels according to the current standard is illustrated in Table 7.

Table 7 Channel Appointment DPCCH (Q, 256, 0) DPDCH (I, SF, SF / 4) HS-DPCCH (Q, 256, 64)

The method of assigning I / Q channels and OPCRS codes for E-DPCCH and E-DPDCH channels in the present invention, taking into account compatibility with the current standard in Table 7, is illustrated in Table 8.

Table 8 Channel Appointment E-DPCCH (Q, SF _E-DPCCH , SF _E-DPCCH / 8) E-DPDCH1, E-DPDCH2, E-DPDCH3, E-DPDCH4 (I, SF, SF / 4 + SF / 2), (Q, 4, 8) (I, 4, 2), (Q, 4, 2)

The values 64, 128 and 256 are available for SF _E-DPCCH for the E-DPCCH channel, and the values 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPDCH for the E-DPDCH channel.

In this case, if a maximum of 4 E-DPDCHs can be transmitted and SF = 4 is used, then E-DPDCH1 and E-DPDCH2 are assigned using (I, 4, 3) and (Q, 4, 3), respectively. Channel E-DPDCH3 is transmitted on channel I using the OKPCRS code (4, 2) and channel E-DPDCH4 is transmitted on channel Q using the OKPCRS code (4, 2).

5. A maximum of three DPDCHs can be transmitted, but the HS-DPCCH is not transmitted.

The method for assigning I / Q channels and OPCRS codes for DPCCH and DPDCH according to the current standard is illustrated in Table 9.

Table 9 Channel Appointment DPCCH (Q, 256, 0) DPDCH1, DPDCH2, (I, SF, SF / 4), (0, 4, 1) DPDCH3 (I, 4, 3)

The method of assigning I / Q channels and OPCRS codes for E-DPCCH and E-DPDCH channels in the present invention, taking into account compatibility with the current standard in Table 9, is illustrated in Table 10.

Table 10 Channel Appointment E-DPCCH (I, SF _E-DPCCH , 1) E-DPDCH1, E-DPDCH2, E-DPDCH3 (Q, SF, SF / 4 + SF / 2), (I, 4, 2), (Q, 4, 2)

The values 8, 16, 32, 64, 128 and 256 are available for SF _E-DPCCH for the E-DPCCH channel, and the values 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPDCH for channel E-DPDCH.

In this case, if a maximum of 3 E-DPDCH channels can be transmitted and SF = 4 is used, then the E-DPDCH1 channel is transmitted on the Q channel using the OPCRS code (4, 3). Channel E-DPDCH2 is transmitted on channel I using the OKPCRS code (4, 2) and channel E-DPDCH3 is transmitted on channel Q using the OKPCRS code (4, 2).

6. A maximum of three DPDCHs can be transmitted and an HS-DPCCH is transmitted.

The method of assigning I / Q channels and OPCRS codes for DPCCH, DPDCH and HS-DPCCH channels according to the current standard is illustrated in Table 11.

Table 11 Channel Appointment DPCCH (Q, 256, 0) DPDCH1, DPDCH2, DPDCH3 (I, SF, SF / 4), (Q, 4, 1), (I, 4, 3) HS-DPCCH (Q, 256, 32)

The method of assigning I / Q channels and OPCRS codes for E-DPCCH and E-DPDCH channels in the present invention, taking into account compatibility with the current standard in Table 11, is illustrated in Table 12.

Table 12 Channel Appointment E-DPCCH (I, SF _E-DPCCH , 1) E-DPDCH1, E-DPDCH2, E-DPDCH3 (Q, SF, SF / 4 + SF / 2), (I, 4, 2), (Q, 4, 2)

The values 8, 16, 32, 64, 128 and 256 are available for SF _E-DPCCH for the E-DPCCH channel, and the values 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPDCH for channel E-DPDCH.

In this case, if a maximum of 3 E-DPDCH channels can be transmitted and SF = 4 is used, then the E-DPDCH1 channel is transmitted on the Q channel using the OPCRS code (4, 3). Channel E-DPDCH2 is transmitted on channel I using the OKPCRS code (4, 2) and channel E-DPDCH3 is transmitted on channel Q using the OKPCRS code (4, 2).

7. A maximum of four DPDCHs can be transmitted, but the HS-DPCCH is not transmitted.

The method for assigning I / Q channels and OPCRS codes for DPCCH and DPDCH according to the current standard is illustrated in Table 13.

Table 13 Channel Appointment DPCCH (Q, 256, 0) DPDCH1, DPDCH2, DPDCH3, DPDCH4 (I, SF, SF / 4), (Q, 4, 1), (I, 4, 3), (Q, 4, 3)

The method of assigning I / Q channels and OPCRS codes for E-DPCCH and E-DPDCH channels in the present invention, taking into account compatibility with the current standard in Table 13, is illustrated in Table 14.

Table 14 Channel Appointment E-DPCCH (I, SF _E-DPCCH , 1) E-DPDCH1, E-DPDCH2 (I, SF, SF / 2), (Q, 4, 2)

The values 8, 16, 32, 64, 128 and 256 are available for SF _E-DPCCH for the E-DPCCH channel, and the values 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPDCH for channel E-DPDCH.

In this case, if a maximum of 2 E-DPDCH channels can be transmitted and SF = 4 is used, then the E-DPDCH1 channel is transmitted on channel I using the OPCRS code (4, 2) and the E-DPDCH2 channel is transmitted on channel Q using the OCCRS code (4, 2).

8. A maximum of four DPDCH channels can be transmitted and an HS-DPCCH channel is transmitted.

The method for assigning I / Q channels and OPCRS codes for DPCCH and DPDCH according to the current standard is illustrated in Table 15.

Table 15 Channel Appointment DPCCH (0, 256, 0) DPDCH1, DPDCH2, DPDCH3, DPDCH4 (I, SF, SF / 4), (Q, 4.1), (I, 4, 3), (Q, 4, 3) HS-DPCCH (I, 256, 1)

The method for assigning I / Q channels and OPCRS codes for E-DPCCH and E-DPDCH channels in the present invention, taking into account compatibility with the current standard in Table 15, is illustrated in Table 16.

Table 16 Channel Appointment E-DPCCH (Q, SF _E-DPCCH , SF _E-DPCCH / 8) E-DPDCH1, E-DPDCH2 (I, SF, SF / 2), (0, 4, 2)

The values 64, 128 and 256 are available for SF _E-DPCCH for the E-DPCCH channel, and the values 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPDCH for the E-DPDCH channel.

In this case, if a maximum of 2 E-DPDCH channels can be transmitted and SF = 4 is used, then the E-DPDCH1 channel is transmitted on channel I using the OPCRS code (4, 2) and the E-DPDCH2 channel is transmitted on channel Q using the OCCRS code (4, 2).

9. A maximum of five DPDCHs can be transmitted, and the HS-DPCCH is not transmitted.

The method for assigning I / Q channels and OPCRS codes for DPCCH and DPDCH according to the current standard is illustrated in Table 17.

Table 17 Channel Appointment DPCCH (Q, 256, 0) DPDCH1, DPDCH2 (I, SF, SF / 4), (Q, 4, 1) DPDCH3, DPDCH4 (I, 4, 3), (Q, 4, 3) DPDCH5 (I, 4, 2)

The method of assigning I / Q channels and OPCRS codes for E-DPCCH and E-DPDCH channels in the present invention, taking into account compatibility with the current standard in Table 17, is illustrated in Table 18.

Table 18 Channel Appointment E-DPCCH (I, SF _E-DPCCH , 1) E-DPDCH1 (Q, SF, SF / 2)

The values 8, 16, 32, 64, 128 and 256 are available for SF _E-DPCCH for the E-DPCCH channel, and the values 8, 16, 32, 64, 128, 256 and 512 are available for SF _E-DPDCH for the E channel -DPDCH. Only one E-DPDCH channel can be transmitted. Channel E-DPDCH1 is transmitted on channel Q using the OPCRS code (4, 2).

10. A maximum of five DPDCH channels can be transmitted and an HS-DPCCH channel is transmitted.

The method for assigning I / Q channels and OPCRS codes for DPCCH and DPDCH according to the current standard is illustrated in Table 19.

Table 19 Channel Appointment DPCCH (Q, 256, 0) DPDCH1, DPDCH2, DPDCH3, DPDCH4, DPDCH5 (I, SF, SF / 4), (Q, 4, 1),
(I, 4, 3), (Q, 4, 3),
(I, 4, 2) HS-DPCCH (Q, 256, 32)

The method of assigning I / Q channels and OPCRS codes for E-DPCCH and E-DPDCH channels in the present invention, taking into account compatibility with the current standard in Table 19, is illustrated in Table 20.

Table 20 Channel Appointment E-DPCCH (I, SF _E-DPCCH , 1) E-DPDCH1, E-DPDCH2 (Q, SF, SF / 2)

In this case, the values 16, 32, 64, 128 and 256 are available for SF _E-DPCCH for the channel E-DPCCH, and a maximum of only one channel E-DPDCH can be transmitted. Channel E-DPDCH1 is transmitted on channel Q using the OPCRS code (4, 2).

Seventh Embodiment

Compared to the sixth embodiment, the seventh embodiment represents an assignment rule that is similar to reducing the packet transmission load required in an RF power amplifier, but is easier to implement. The method for assigning I / Q channels and OPCRS codes for E-DPCCH and E-DPDCH is determined based on the maximum number of transmitted DPDCHs and HS-DPCCH transmission / non-transmission, and the basic rule is as follows:

E-DPCCH: If the maximum number of transmitted DPDCHs is 2 or 4 and the HS-DPCCH is assigned (I, 256, 1), then it uses (Q, SF _E-DPCCH , SF _E-DPCCH / 8), and in other cases, he uses (I, SF _E-DPCCH , 1).

E-DPDCH Channel: If multiple DPDCHs are transmitted, then DPDCHs use OKPCRS codes in the order of (I, 4, 1), (Q, 4, 1), (I, 4, 3), (Q, 4, 3) , (I, 4, 2) and (Q, 4, 2) according to the data rate. Therefore, the E-DPDCH additionally uses the remaining codes, with the exception of the codes set for transmitting the DPDCH, of the six codes in a consistent order according to the EUDCH packet data rate.

In a separate case, when only the EUDCH channel is transmitted, HSDPA uses the OPCRS code (256, 1) in channel I, and in the case when the DPDCH channel is installed, HSDPA follows the Rel-5 standard.

It is most preferable to assign I / Q channels and OPCRS codes for the E-DPCCH and E-DPDCH channels in the manner described above taking into account PAPR.

1. HS-DPCCH is not installed and there is a separate EUDCH.

The E-DPCCH always uses (I, SF _E-DPCCH , 1). The values 8, 16, 32, 64, 128 and 256 are available for SF _E-DPCCH .

As illustrated in table 21, E-DPDCHs are assigned I / Q channels and OPCRS codes according to the maximum number of DPDCHs that can be transmitted.

Table 21 Max. number of transmitted DPDCH Max. number of transmitted E-DPDCH E-DPDCH Assignment Procedure 0 6 (I, SF, SF / 4), (Q, 4, 1), (I, 4, 3), (Q, 4, 3), (I, 4, 2), (Q, 4, 2) one 5 (Q, SF, SF / 4), (I, 4, 3), (Q, 4, 3), (I, 4, 2), (Q, 4.2) 2 four (I, SF, SF / 2 + SF / 4), (Q, 4, 3), (I, 4, 2), (Q, 4, 2) 3 3 (Q, SF, SF / 2 + SF / 4), (I, 4, 2) (Q, 4, 2) four 2 (I, SF, SF / 2), (Q, 4, 2) 5 one (Q, SF, SF / 2)

In table 21, the values 4, 8, 16, 32, 64, 128, 256, and 512 are available for SF. In table 21, if the maximum number of transmitted DPDCHs is 0, E-DPDCHs transmitting EUDCH data may use a maximum of 6 codes.

For example, when all six channels are used according to the data rate of the EUDCH channel, the E-DPDCH1 channel is transmitted on channel I using the OKPCRS code (4, 1), the E-DPDCH2 channel is transmitted on channel Q using the OKPCRS code (4, 1). Channel E-DPDCH3 is transmitted on channel I using the OKPCRS code (4, 3) and channel E-DPDCH4 is transmitted on channel Q using the OKPCRS code (4, 3). Channel E-DPDCH5 is transmitted on channel I using the OKPCRS code (4, 2) and channel E-DPDCH6 is transmitted on channel Q using the OKPCRS code (4, 2).

As another example, if the maximum number of transmitted DPDCHs is 4 in Table 21, E-DPDCHs transmitting EUDCH data may use a maximum of 2 codes. For E-DPDCH channels, the E-DPDCH1 channel is transmitted on channel I using the OKPCRS code (SF, SF / 2), and the additionally assigned E-DPDCH2 channel is transmitted on channel Q using the OKPCRS code (4, 2).

2. A maximum of four DPDCHs can be transmitted and an HS-DPCCH assigned (Q, 256, 64).

The E-DPCCH always uses (I, SF _E-DPCCH , 1). The values 8, 16, 32, 64, 128 and 256 are available for SF _E-DPCCH .

The E-DPDCH channel is sequentially assigned four OPCRS codes (I, SF, SF / 2 + SF / 4), (Q, 4, 3), (I, 4, 2) and (Q, 4, 2) according to the data rate EUDCH. The values 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF. Since the HS-DPCCH is assigned (Q, 256, 64) in the Q channel, the OKPCRS code (4, 1) is almost impossible to use for the E-DPDCH.

3. A maximum of two DPDCHs can be transmitted and the HS-DPCCH is set.

As illustrated in table 22, the E-DPDCH is assigned I / Q channels and OPCRS codes according to the maximum number of transmitted DPDCHs.

Table 22 Max. number of transmitted DPDCH Purpose E-DPCCH 1,3,5 (I, SF _E-DPCCH , 1) 2,4 (Q, SF _E-DPCCH , SF _E-DPCCH / 8)

In this case, if the maximum number of transmitted DPDCHs is 2 or 4 and the HS-DPCCH is assigned (I, 256, 1), the E-DPCCH uses (Q, SF _E-DPCCH , SF _E-DPCCH / 8). The values 64, 128 and 256 are available for SF _E-DPCCH .

However, E-DPDCHs are assigned I / Q channels and OPCRS codes, as illustrated in Table 1. 21, according to the maximum number of transmitted DPDCHs.

Eighth Embodiment

The eighth embodiment has the basic principle of assigning an E-DPDCH channel to Q channel first for an QCCH code having the same index and then assigning an E-DPDCH channel to Channel I. In this case, the codes for E-DPDCH channels are determined taking into account the maximum number of transmitted DPDCH channels and transmitting / not transmitting the HS-DPCCH.

Those. according to the eighth embodiment, the DPDCHs are first assigned to the I channel, and the E-DPDCHs are first assigned to the Q channel so that the number of DPDCHs and E-DPDCHs transmitted on the I / Q channels can be equal to each other. In other words, when the HS-DPCCH is transmitted on the Q channel using the OPCRS code (256, 64) or the number of DPDCHs is less than the maximum number of transmitted DPDCHs, the eighth embodiment will prevent an excessive increase in PAPR due to the predominance of DPDCH and E-DPDCH over channel I.

However, when the above-mentioned rule for assigning OPCRS codes and I / Q channels is used for the E-DPDCHs, as compared to the DPCCH channel using the OPCRS code (256, 0) in the Q channel, the E-DPDCH is transmitted on the I channel using (SF, 1), thereby minimizing the increase in PAPR. The values 4, 8, 16, 32, 64 and 128 are available for SF. In case of separate use, HSDPA uses the OPCRS code (256, 1) in channel I, and in the case when the DPDCH channel is installed, HSDPA follows the Rel-5 standard. It is most preferable to assign OPCRS codes in the manner described above taking into account PAPR.

1. HS-DPCCH is not installed, and EUDCH is a separate channel.

E-DPDCHs are assigned I / Q channels and OPCRS codes, as illustrated in Table 23, according to the maximum number of transmitted DPDCHs.

Table 23 Max. number of transmitted DPDCH Max. number of transmitted E-DPDCH E-DPDCH Assignment Procedure 0 6 (Q, SF, SF / 4), (I, 4, 1), (Q, 4, 3), (I, 4, 3), (Q, 4, 2), (I, 4, 2) one 5 (Q, SF, SF / 4), (Q, 4, 3), (I, 4, 3), (Q, 4, 2), (I, 4, 2) 2 four (Q, SF, SF / 2 + SF / 4), (I, 4, 3), (Q, 4, 2), (I, 4, 2) 3 3 (Q, SF, SF / 2 + SF / 4), (Q, 4, 2) (I, 4, 2) four 2 (Q, SF, SF / 2), (I, 4, 2) 5 one (I, SF, SF / 2)

In table 23, the values 4, 8, 16, 32, 64, 128, 256, and 512 are available for SF. In table 23, if the maximum number of transmitted DPDCHs is 0, then a maximum of 6 E-DPDCHs can be transmitted. In this case, the OPCRS codes are used in the order of (Q, SF, SF / 4), (I, 4, 1), (Q, 4, 3), (I, 4, 3), (Q, 4, 2) and (I, 4, 2) according to the number of transmitted E-DPDCH channels.

However, if the maximum number of DPDCHs transmitted is 1, a maximum of 5 codes can be used for E-DPDCHs transmitting EUDCH data so that a maximum of 5 E-DPDCHs can be transmitted. In this case, the OPCRS codes are used in the order of (Q, SF, SF / 4), (Q, 4, 3), (I, 4, 3), (Q, 4, 2) and (I, 4, 2) according to the number of transmitted E-DPDCH channels.

As another example, if the maximum number of transmitted DPDCHs is 4 in Table 23, then a maximum of 2 codes can be used for the E-DPDCH. In this case, when only one E-DPDCH is transmitted, this E-DPDCH is transmitted on the Q channel using the OPCRS code (SF, SF / 2), and the E-DPDCH, optionally assigned additionally, is transmitted on the I channel with using the code OPCRS (4, 2).

2. A maximum of four DPDCHs can be transmitted, and an HS-DPCCH is assigned (Q, 256, 64).

E-DPDCH channels are assigned four OPCRS codes (Q, SF, SF / 2 + SF / 4), (I, 4, 3), (Q, 4, 2) and (I, 4, 2) in sequence according to the data rate channel EUDCH. The values 4, 8, 16, 32, 64, 128, 256 and 512 are available for SF.

For example, when only one E-DPDCH is transmitted, the E-DPDCH is transmitted on the Q channel using the OPCRS code (SF, SF / 2 + SF / 4). This should prevent an excessive increase in PAPR due to the predominance of physical data channels over one of the channels I and Q. Therefore, DPDCH channels are transmitted on channel I, and E-DPDCH channels are transmitted on channel Q, so that the number of physical data channels transmitted on channel I, was equal to the number of physical data channels transmitted over channel Q, thereby preventing an increase in PAPR.

3. A maximum of two DPDCHs can be transmitted, and the HS-DPCCH is set.

The same code assignment is used as illustrated in table 23.

Ninth Embodiment

When several physical E-DPDCHs are transmitted, SFCCC codes SF = 2 are used for E-DPDCHs only in the following case, in order to further reduce PAPR.

For example, when (I, 4, 3) and (I, 4, 2) are simultaneously assigned to E-DPDCHs for multicode transmission on E-DPDCHs, E-DPDCHs are transmitted using (I, 2, 1) instead of the two above codes. Those. for the case when the E-DPDCHs are transmitted on channel I using both the OPCRS codes (4, 3) and (4, 2), the E-DPDCHs are transmitted on channel I using the OPCRS code (2, 1).

Similarly, for the case where the OPCRS codes (4, 3) and (4, 2) are simultaneously assigned to the E-DPDCH channels in the Q channel, the E-DPDCH channels are transmitted on the Q channel using the OPCRS code (2, 1). Those. E-DPDCHs are transmitted using (Q, 2, 1).

The following tenth embodiment provides a method for additionally using possible codes generated from the OPCRS code (4, 1), including the OPCRS code of the Q channel (256, 64) used by the HS-DPCCH for the E-DPDCH. In addition, the tenth embodiment provides a method for further utilizing codes assigned to DPDCHs for E-DPDCHs.

Tenth Embodiment

The OKPCRS code (Q, 256, 64) used for the HS-DPCCH is used for the optional E-DPDCH. Those. the tenth embodiment allows the HS-DPCCH to use the OPCRS code (256, 32) in the Q channel, thereby guaranteeing the EUDCH data rate. In this embodiment, methods for assigning OPCRS codes and I / Q channels for E-DPDCHs are summarized as follows.

1. Two or less E-DPDCH channels are transmitted

The methods proposed in the first to fifth embodiments are used.

2. Three E-DPDCH channels are transmitted

Channels E-DPDCH1 and E-DPDCH2 are assigned to channels I and Q, respectively, using the OPCRS code (2, 1).

The E-DPDCH1 channel is assigned to the Q channel using the OPCRS code (4, 1). In this case, the data transmitted on the E-DPDCH3 channel undergoes QPSK modulation.

In addition, methods for using the DPCCH codes allocated by the DPDCH for E-DPDCH are described below.

1. Three or less E-DPDCH channels are transmitted

The methods proposed in the first to sixth embodiments are used.

2. Four or less E-DPDCH channels are transmitted

If the DPDCH is not transmitted, the fourth E-DPDCH is transmitted on channel I using the OPCRS code (4, 1).

As described above, the present invention provides a method for assigning OPCRS codes and I / Q channels, optimized for E-DPDCH and E-DPCCH for EUDCH, while maintaining backward compatibility with DPDCH and DPCCH, which are physical uplink channels , in a method for assigning OPCRS codes and I / Q channels to uplink physical channels. In addition, the present invention provides an HS-DPCCH channel and an OPCRS code that are different from those specified in the used Rel-5 standard in order to increase the maximum data rate of the EUDCH, and a method for assigning OCRPC codes and I / Q channels optimized for E channels -DPDCH and E-DPCCH for EUDCH service in the above case.

Therefore, the present invention minimizes the increase in PAPR during packet data transmission for the EUDCH service and minimizes EUDCH packet data transmission errors, thereby contributing to an increase in throughput for the EUDCH service.

Although the invention has been shown and described with reference to its specific embodiments, it will be understood by those skilled in the art that various changes in form and detail can be made without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (55)

1. A method for transmitting advanced packet data in a mobile communication system, the method comprising the steps of: generating a first enhanced dedicated physical data channel (E-DPDCH) via an in-phase (I) channel and a second E-DPDCH via a quadrature (Q) channel if high speed downlink packet access (HSDPA) is installed, and generating a first E- channel DPDCH via channel Q and a second E-DPDCH through channel I if HSDPA is not established; generate an enhanced dedicated physical control channel (E-DPCCH) using channel I and summarize the E-DPDCH and the E-DPCCH before transmitting. 2. The method according to claim 1, in which the E-DPCCH channel is expanded using an orthogonal code with a variable spreading coefficient of spreading spectrum (SCCR) (256, 1) in channel I before transmission. 3. The method according to claim 1, in which, if the channel DPDCH is installed, the channel HS-DPCCH is expanded using the code OPCRS (256, 64) in the channel Q before transmission. 4. The method according to claim 1, in which if the spreading factor of the spectrum of the E-DPDCH is denoted by SF _DPDCH , then the code is OKPCRS (SF _DPDCH , SF _DPDCH / 2). 5. The method according to claim 4, further comprising the step of: if the SF _E-DPDCH is 2 and two E-DPDCH channels are transmitted simultaneously, then the first E-DPDCH and the second E-DPDCH are generated, which are expanded using the OPCRS code (2, 1) in channel I and channel Q, respectively. 6. The method according to claim 4, further comprising the step of: if the DPDCH is not transmitted, the third and fourth E-DPCCHs are generated using the OPCRS code (4, 1) in channel I and channel Q, respectively. 7. A method for transmitting packet data in a mobile communication system, the method comprising the steps of: generating a dedicated physical control channel (DPCCH) using an orthogonal code with a variable spreading coefficient of spreading (OPCRS) (256, 0) and a quadrature (Q) channel; generating a dedicated physical data channel (DPDCH) using an OPCRS code (SF _DPDCH , SF _DPDCH / 4) and an in-phase (I) channel, where SF _DPDCH denotes a spectrum expansion coefficient of a DPDCH; generating the E-DPCCH using the OPCRS code (SF _E-DPCCH , 1) and channel I, where the SF _E-DRCCH denotes the spreading factor of the _OPCRS code to be assigned to the enhanced dedicated physical control channel (E-DPCCH) to support transmission enhanced uplink packet data; and generate the E-DPDCH channel using the OPCRS code (SF _E-DPDCH , SF _E-DPDCH / 2) and the Q channel, where SF _E-DPDCH denotes the spreading coefficient of the OPCRS code to be assigned to the enhanced dedicated physical data channel (E- DPDCH) to support the transmission of advanced uplink packet data. 8. The method according to claim 7, further comprising the step of: if the SF _E-DPDCH is 4 and two E-DPDCH channels are simultaneously transmitted, then E-DPDCH 1 and E-DPDCH2 are generated simultaneously, which are expanded using the OPCRS code ( 4, 2) in channel I and channel Q, respectively. 9. The method according to claim 7, further comprising the step of: if the SF _E-DPDCH is 2 and two E-DPDCH channels are transmitted simultaneously, then the E-DPDCH 1 channel and the E-DPDCH2 channel are generated, which are expanded using the OPCRS code ( 2, 1) in channel I and channel Q, respectively. 10. The method according to claim 7, further comprising the step of: if the SF _E-DPDCH is 2 and one _E-DPDCH is transmitted, an E-DPDCH is generated, which is expanded using the OPCRS code (2.1) in the Q channel . 11. The method according to claim 7, further comprising the step of: if the E-DPCCH is transmitted, then the E-DPCCH is generated, which is expanded using the OPCRS code (256, 1) in channel I. 12. The method according to claim 7, further comprising the step of: if a high-speed downlink packet access service (HSDPA) is received, a high-speed downlink physical channel (HS-DPCCH) is generated using an OPCRS code (256, 64) and channel Q. 13. The method according to claim 7, further comprising the step of: if the DPDCH is not transmitted, the third and fourth E-DPCCHs are generated using the OPCRS code (4, 1). 14. The method according to item 13, further comprising the step of using the OPCRS code (4, 1) and channel I for the third E-DPCCH channel and using the OCCRS code (4, 1) and Q channel for the fourth E-DPCCH channel. 15. A device for supporting advanced packet data services in a mobile communication system, the device comprising: a controller for assigning the first enhanced dedicated physical data channel (E-DPDCH) to the in-phase (I) channel and the second E-DPDCH channel to the quadrature (Q) channel if high speed downlink packet access (HSDPA) is installed, and assigning the first E- channel DPDCH channel Q and the second channel E-DPDCH channel I, if HSDPA is not installed; a spectrum extender for expanding the E-DPDCH and the E-DPCCH in accordance with a control signal from the controller; an adder for summing the extended E-DPDCHs and the E-DPCCH and transmitting device for transmitting the total signal. 16. The device according to clause 15, in which the controller assigns the E-DPCCH channel to orthogonal code with a variable spreading coefficient of expansion of the spectrum (OPCRS) (256, 1) in channel I. 17. The device according to clause 15, in which, if one DPDCH is installed, the controller assigns a high-speed physical channel downlink (HS-DPCCH) code OKPCRS (256, 64) in the channel Q. 18. The device according to clause 15, in which the controller assigns the channel E-DPDCH code OKPCRS (SF _E-DPDCH , SF _E-DPDCH / 2), where SF _E-DPDCH denotes the spreading factor of the spectrum of the channel E-DPDCH. 19. The device according to p, in which if SF _{E. DPDCH} is equal to 2 and two E-DPDCH channels are simultaneously transmitted, the controller assigns the first E-DPDCH channel and the second E-DPDCH channel to the OPCRS code (2, 1) in channel I and channel Q, respectively. 20. The device according to p. 18, in which, if the DPDCH channel is not transmitted, the controller assigns the third and fourth E-DPCCH channels to the code OPCRS (4, 1) in channel I and channel Q, respectively. 21. A device for transmitting packet data in a mobile communication system, the device comprising: a controller for assigning an orthogonal code with a variable spreading coefficient of spectrum (OPCRS) (256, 0) and a quadrature (Q) channel to a dedicated physical control channel (DPCCH), assigning an OPCRS code (SF _DPDCH , SF _DPDCH / 4) and common mode (I) channel a dedicated physical data channel (DPDCH), where SF _DPDCH denotes a spreading factor of a DPDCH, assigning an enhanced dedicated physical control channel (E-DPCCH) to an EQPC code (SF _E-DPCCH , 1) and channel I, where SF _E-DPCCH denotes a coefficient expanding the spectrum of the OPCRS code which should be assigned to the E-DPCCH to support the transmission of advanced uplink packet data, and to assign the enhanced dedicated physical data channel (E-DPDCH) to the FCCCH code (SF _E-DPDCH , SF _E-DPDCH / 2) and channel Q, where SF _{The E-DPDCH} denotes the spreading factor of the OPCRS code to be assigned to the E-DPDCH to support the transmission of advanced uplink packet data; a spectrum extender for expanding the E-DPDCH and the E-DPCCH in accordance with a control signal from the controller; an adder for summing the extended channels E-DPDCH and E-DPCCH and transmitting device for transmitting the total signal. 22. The device according to item 21, in which if the SF _E-DPDCH is 4 and two E-DPDCH channels are transmitted simultaneously, the controller assigns the first E-DPDCH channel and the second E-DPDCH channel to the OKPCRS code (4, 2) in channel I and channel Q, respectively. 23. The device according to item 21, in which if the SF _E-DPDCH is 2 and two E-DPDCH channels are transmitted simultaneously, the controller assigns the first E-DPDCH channel and the second E-DPDCH channel to the OKPCRS code (2, 1) in channel I and channel Q, respectively. 24. The device according to item 21, in which if the SF _E-DPDCH is equal to 2 and one channel E-DPDCH is transmitted, the controller assigns the E-DPDCH channel to the code OKPCRS (2, 1) in channel Q. 25. The device according to item 21, in which the controller assigns the channel E-DPCCH code OKPCRS (256, 1) in channel I. 26. The device according to item 21, in which if you want to receive high-speed packet access services on the downlink (HSDPA), the controller assigns a high-speed physical channel downlink (HS-DPCCH) code OKPCRS (256, 64) in the channel Q. 27. The device according to item 21, in which the controller assigns the third and fourth channels of the E-DPCCH channel Q and channel I using the code OPCRS (4, 1), respectively. 28. A method for receiving improved packet data in a mobile communication system, the method comprising the steps of: receive information indicating the state of the transport channel from the user terminal (UE); transmit destination scheduling information indicating the data rate of the enhanced dedicated physical data channel (E-DPDCH) to the UE and receiving the first enhanced dedicated physical data channel (E-DPDCH) via the in-phase (I) channel and the second E-DPDCH by means of a quadrature (Q) channel, if high speed downlink packet access (HSDPA) is established, and the first E-DPDCH is received by the Q channel and the second E-DPDCH is by the I channel if HSDPA is not set; and receive the enhanced dedicated physical control channel (E-DPCCH) through channel I. 29. The method according to p. 28, in which the E-DPCCH channel is received using an orthogonal code with a variable spreading coefficient of expansion of the spectrum (OPCRS) (256, 1) in channel I. 30. The method according to p. 28, in which if the channel DPDCH is installed, then the channel HS-DPCCH is received using the code OKPCRS (256, 64) in channel Q. 31. The method of claim 28, wherein the E-DPDCH is received using an OPCRS code (SF _E-DPDCH , SF _E-DPDCH / 2), where SF _E-DPDCH is an E-DPDCH channel spread coefficient. 32. The method according to p. 31, in which if the SF _E-DPDCH is 2 and two E-DPDCH channels are transmitted simultaneously, the first E-DPDCH and the second E-DPDCH are received using the OPCRS code (2, 1) in the channel I and channel Q, respectively. 33. The method according to p, in which if the channel DPDCH is not transmitted, the third and fourth channels E-DPCCH are received using the code OPCRS (4, 1) in channel I and channel Q, respectively. 34. A method for receiving improved packet data in a mobile communication system, the method comprising the steps of: receive information indicating the state of the transport channel from the user terminal (UE); transmit destination scheduling information indicating the data rate of the enhanced dedicated physical data channel (E-DPDCH) to the UE; receive a dedicated physical control channel (DPCCH) using an orthogonal code with a variable spreading coefficient of expansion of the spectrum (OPCRS) (256, 0) and quadrature (Q) channel; receiving a dedicated physical data channel (DPDCH) using an OPCRS code (SF _DPDCH , SF _DPDCH / 4) and an in-phase (I) channel, where SF _DPDCH denotes a spectrum expansion coefficient of a DPDCH; receive the enhanced dedicated physical control channel (E-DPCCH) using the OPCRS code (SF _E-DPCCH , 1) and channel I, where the SF _E-DPCCH denotes the spreading coefficient of the OPCRS code to be assigned to the E-DPCCH to support transmission enhanced uplink packet data; and receive the E-DPDCH using the OPCRS code (SF _E-DPDCH , SF _E-DPDCH / 2) and the Q channel, where SF _E-DPDCH denotes the spreading coefficient of the OPCRS code to be assigned to the enhanced dedicated physical data channel (E -DPDCH) to support the transmission of advanced uplink packet data. 35. The method according to clause 34, further comprising the step of: if the SF _E-DPDCH is 4 and two E-DPDCH channels are transmitted simultaneously, then the first E-DPDCH channel and the second E-DPDCH channel are received using the OPCRS code (4, 2) in channel I and channel Q, respectively. 36. The method according to clause 34, further comprising the step of: if the SF _E-DPDCH is 2 and two E-DPDCH channels are transmitted simultaneously, then the first E-DPDCH channel and the second E-DPDCH channel are received using the OPCRS code (2, 1) in channel I and channel Q, respectively. 37. The method according to clause 34, further comprising the step of: if the SF _E-DPDCH is 2 and one _E-DPDCH is transmitted, then the E-DPDCH is received using the OPCRS code (2, 1) in the Q channel. 38. The method according to clause 34, further comprising the step of: if the E-DPCCH is transmitted, then the E-DPCCH is received using the OPCRS code (256, 1) in channel I. 39. The method of claim 34, further comprising receiving a high-speed physical downlink channel (HS-DPCCH) using an OKPCRS code (256, 64) and a Q channel if it is contemplated to receive high-speed downlink packet access service (HSDPA). 40. The method according to clause 34, further comprising the step of: if the DPDCH is not transmitted, then the third and fourth E-DPCCHs are received using the OPCRS code (4, 1). 41. The method of claim 40, wherein the third E-DPCCH channel is received using the OPCRS code (4, 1) and channel I, and the fourth E-DPCCH channel is received using the OCCPC code (4, 1) and Q channel. 42. An apparatus for receiving improved packet data in a mobile communication system, the apparatus comprising: a receiver for receiving information indicating the state of the transport channel from the user terminal (UE) and receiving the first enhanced dedicated physical data channel (E-DPDCH) via the in-phase (I) channel and the second E-DPDCH channel through the quadrature (Q) channel, if established high-speed downlink packet access (HSDPA), and receiving the first E-DPDCH through Q channel, the second E-DPDCH through I channel and enhanced dedicated physical control channel (E-DPCCH) osredstvom channel I, if HSDPA is not set; and a transmitter for transmitting destination scheduling information indicating enhanced dedicated physical data channel (E-DPDCH) information to the UE; and a controller for controlling the transmitting device and the receiving device. 43. The device according to § 42, in which the receiving device receives the channel E-DPCCH using an orthogonal code with a variable spreading coefficient of spreading of the spectrum (OPCRS) (256, 1) in channel I. 44. The device according to § 42, in which if one DPDCH is installed, the receiving device receives a high speed downlink physical channel (HS-DPCCH) using the OPCRS code (256, 64) in the Q channel. 45. The device according to § 42, in which the receiving device receives the channel E-DPDCH using the code OKPCRS (SF _E-DPDCH , SF _E-DPDCH / 2), where SF _E-DPDCH denotes the spreading factor of the spectrum E-DPDCH. 46. The device according to § 42, in which if the SF _E-DPDCH is 2 and two E-DPDCH channels are transmitted simultaneously, the receiving device receives the first E-DPDCH channel and the second E-DPDCH channel using the OPCRS code (2, 1) in channel I and channel Q, respectively. 47. The device according to § 42, in which if the DPDCH is not transmitted, the receiver receives the third and fourth E-DPCCH channels using the OKPCRS code (4, 1) in channel I and channel Q, respectively. 48. An apparatus for receiving improved packet data in a mobile communication system, the apparatus comprising: a receiver for receiving information indicating the state of the transport channel from the user terminal (UE), receiving a dedicated physical control channel (DPCCH) using an orthogonal code with a variable spreading coefficient of spreading (OPCRS) (256, 0) and a quadrature (Q) channel, receiving a dedicated physical data channel (DPDCH) using an OPCRS code (SF _DPDCH , SF _DPDCH / 4) and an in-phase (I) channel, where SF _DPDCH denotes the spreading factor of the DPDCH, receiving an enhanced dedicated physical channel control (E-DPCCH) using the OPCRS code (SF _E-DPCCH , 1) and channel I, where the SF _E-DPDCH denotes the spreading coefficient of the OPCRS code to be assigned to the E-DPCCH to support the transmission of advanced uplink packet data communicating and receiving the enhanced dedicated physical data channel (E-DPDCH) using the OPCRS code (SF _E-DPDCH , SF _E-DPDCH / 2) and the Q channel, where SF _E-DPDCH indicates the spread coefficient of the OPCRS code, which should be assigned to the E-DPDCH to support the transmission of advanced uplink overhead data; a transmitter for transmitting destination scheduling information indicating information of an E-DPDCH channel data rate to the UE; and a controller for controlling the receiving device and the transmitting device. 49. The device according to § 48, in which if the SF _E-DPDCH is 4 and two E-DPDCH channels are transmitted simultaneously, the receiving device receives the first E-DPDCH channel and the second E-DPDCH channel using the OKPCRS code (4, 2) in channel I and channel Q, respectively. 50. The device according to § 48, in which if the SF _E-DPDCH is 2 and two E-DPDCH channels are transmitted simultaneously, the receiver receives the first E-DPDCH channel and the second E-DPDCH channel using the OPCRS code (2, 1) in channel I and channel Q, respectively. 51. The device according to § 48, in which if the SF _E-DPDCH is 2 and one _E-DPDCH is transmitted, the receiver receives the E-DPDCH using the OPCRS code (2, 1) in the Q channel. 52. The device according to § 48, in which if the E-DPCCH is transmitted, the receiver receives the E-DPCCH using the OPCRS code (256, 1) in channel I. 53. The device according to p, in which the receiving device receives a high-speed physical channel downlink (HS-DPCCH) using the code OKPCRS (256, 64) and channel Q, if it is intended to receive high-speed packet access services on the downlink (HSDPA ) 54. The device according to § 48, in which if the DPDCH is not transmitted, the receiver receives the third and fourth E-DPCCH channels using the OKPCRS code (4, 1). 55. The device according to § 48, in which the receiving device receives the third E-DPCCH channel using the OPCRS code (4, 1) and channel I and receives the fourth E-DPCCH channel using the OCCRS code (4, 1) and the Q channel.

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