KR20010036218A - Apparatus and method for transmitting a channel signal gated in the control only substate of cdma communications system - Google Patents

Abstract

PURPOSE: A CDMA communication system is provided to minimize time amount taken during a synchronous re-capture in a base station in a control only sub-state of a mobile communication system while minimizing an interrupt increase by the transmission of an up-link DPCCH channel and an interrupt increase by an up-link power control bit transmission into a downlink link. CONSTITUTION: In a CDMA communication system, a mobile station regulates and transmits an up-link dedicated control channel signal by same unit as a slot unit in a control only sub-state. A base station includes a gated transmission controller(141) which regulates and transmits a downlink dedicated control channel signal in a power control group promised with the mobile station in the control only sub-state. The gated transmission controller regulates signals of the up-link dedicated control channel depending on an up-link gated transmission pattern formed regularly within the respective frame period.

Description

Apparatus and method for intermittent channel transmission in control-split state of code division multiple access communication system {APPARATUS AND METHOD FOR TRANSMITTING A CHANNEL SIGNAL GATED IN THE CONTROL ONLY SUBSTATE OF CDMA COMMUNICATIONS SYSTEM}

In the present invention, a dedicated channel is allocated in a code division multiple access (CDMA) type mobile communication system so that a process for separate resynchronization acquisition is not required. An apparatus and method for intermittent or discontinuous transmission in a control only substate).

Conventional CDMA mobile communication systems have provided voice-oriented services, but gradually developed to the IMT-2000 standard that enables high-speed data transmission as well as voice. In the IMT-2000 standard, services such as high quality voice, moving picture, and internet search are possible.

The characteristic of data communication performed in the mobile communication system is that the generation of data is concentrated at the moment, and the idle state frequently occurs for a long time in which a state in which data is not transmitted is frequently generated. Therefore, in the next generation mobile communication system, the traffic data is transmitted through a dedicated data channel during the transmission of traffic data during a data communication service, and the dedicated data channel is maintained for a predetermined time even when there is no traffic data to be transmitted by the base station or the mobile station. It is used. That is, considering the limited radio resources, base station capacity, and power consumption of the mobile station, the traffic data is transmitted through a dedicated traffic channel while the actual data is being transmitted, and even while there is no traffic data to transmit. By maintaining a dedicated traffic channel between the base station and the mobile station for a certain time to minimize the time delay caused by the synchronization reacquisition when the traffic data to be transmitted.

In the present invention, a Universal Mobile Telecommunications System (UTS) Terrestrial Radio Access (UMTS) system will be described as an example.

In data services such as packets as well as voice, various states are required depending on channel allocation status and presence or absence of status information.

State transition diagrams for cell connection state, user data active part state and control hold state are shown in the 3GPP RAN TS S2 series (S2.03, 99.04) document (ftp://ftp.3gpp.org/).

1A illustrates a state transition in a cell connected state of a mobile communication system. Referring to FIG. 1A, a state in a cell connection state may include a paging channel (PCH) state, a random access channel (RACH) / downlink shared channel (DSCH) state, and a random access channel (RACH) / forward (FACH) state as illustrated. Link Access Channel (DCH) status, DCH (Dedicated Channel) / DCH, DCH / DCH + DSCH, DCH / DSCH + DSCH Ctrl (Control Channel).

FIG. 1B shows a user data active substate and a control only substate in the DCH / DCH, DCH / DCH + DSCH, DCH / DSCH + DSCH Ctrl states. The present invention relates to an intermittent transmission method and apparatus in the DCH / DCH control holding substate in the above state.

In the voice-oriented CDMA mobile communication system, a method of releasing a channel where data transmission is terminated and requesting a channel again when a data transmission is required is performed, and then accessing and transmitting data. However, in order to provide other services such as packet data services other than voice services, high quality services cannot be provided by using a conventional method because there are many delay factors such as reconnection delay time. Therefore, in order to provide other services such as packet data services other than voice services, services must be provided using a method different from the conventional method. Packet data services, such as Internet access and file downloads, are often intermittent. Therefore, there is a period in which data is not transmitted until some packet data is transmitted and then next packet data is transmitted. In this period, using the conventional method, it is necessary to release the dedicated data channel or keep the dedicated data channel. When the dedicated data channel is released, it takes a long time to reconnect, so that a corresponding service cannot be provided. If the channel is kept as it is, the channel is wasted. To solve this problem, a dedicated control channel is provided in a base station and a terminal to transmit and receive a control signal related to a dedicated data channel in a period in which data is transmitted and received, and a dedicated data channel in a period in which data is not transmitted or received. By releasing and maintaining only the dedicated control channel, you can avoid wasting the channel and quickly access the data to be sent again. This state is called a control only substate.

In the forward direction from the base station to the mobile station, there are the following physical channels (the description of other physical channels outside the scope of the present invention will be omitted in the following description). Dedicated Physical Control CHannel (DPCCH), which includes pilot symbols for synchronization acquisition and channel estimation, etc., and Dedicated Physical Data CHannel (DPDCH), which communicates traffic data with a specific mobile station. Etc.). The forward DPDCH is composed of traffic data, and the forward DPCCH includes transport information (Transport Format Combination Indicator, TFCI), power control bit (hereinafter, referred to as TPC), pilot symbol, etc. in one slot. It is multiplexed in time within one power control group.

For reference, in the present specification, a frame length of 10 msec and 16 power control groups exist in one frame, that is, a case in which one power control group has a length of 0.625 msec will be described. . The case where the frame length is 10 msec and 15 power control groups exist in one frame, that is, the case where the length of the power control group is 0.667 msec will be described. In the following description, it is assumed that the power control group (0.625 ms or 0.667 msec) and the slot unit (0.625 ms or 0.667 msec) have the same time interval. The power control group (or slot) is composed of pilot symbols, traffic data, rate information, power control command bits, and the like. The above values are selected only for the purpose of explanation of the invention and are not essential.

FIG. 2A illustrates a slot structure in which the forward DPDCH and the DPCCH are configured. In FIG. 2A, a spreading factor (SF) represents a diffusion coefficient. In FIG. 2A, the DPDCH is divided into traffic data 1 (Data1) and traffic data 2 (Data2). However, depending on the type of traffic data, the traffic data 1 may not exist and only traffic data 2 may exist. Table 1 below shows an example of symbols constituting the forward DPDCH / DPCCH field, and the number of TFCI, TPC, and Pilot bits in one slot may vary according to data transmission rate and spreading factor.

On the other hand, the reverse DPDCH and DPCCH from the mobile station to the base station is distinguished by the channel classification code, unlike the forward DPDCH and DPCCH.

FIG. 2B illustrates a slot structure in which the reverse DPDCH and the DPCCH are configured. In FIG. 2B, the number of TFCI, TPC, and Pilot bits in a slot may vary depending on a type of traffic data or a situation such as service option or handover, such as transmission antenna diversity. Tables 2 and 3 below show examples of symbols constituting the reverse DPDCH field and the reverse DPCCH field.

Forward DPDCH / DPCCH Fields Channel Bit Rate (kbps) Channel Symbol Rate (ksps) SF Bits / Frame Bits / Slot DPDCHBits / Slot DPCCHBits / Slot DPDCH DPCCH TOT N _data1 N _data2 N _TFCI N _TPC N _pilot 16 8 512 64 96 160 10 2 2 0 2 4 16 8 512 32 128 160 10 0 2 2 2 4 32 16 256 160 160 320 20 2 8 0 2 8 32 16 256 128 192 320 20 0 8 2 2 8 64 32 128 480 160 640 40 6 24 0 2 8 64 32 128 448 192 640 40 4 24 2 2 8 128 64 64 1120 160 1280 80 14 56 0 2 8 128 64 64 992 288 1280 80 6 56 8 2 8 256 128 32 2400 160 2560 160 30 120 0 2 8 256 128 32 2272 288 2560 160 22 120 8 2 8 512 256 16 4832 288 5120 320 62 240 0 2 16 512 256 16 4704 416 5120 320 54 240 8 2 16 1024 512 8 9952 288 10240 640 126 496 0 2 16 1024 512 8 9824 416 10240 640 118 496 8 2 16 2048 1024 4 20192 288 20480 1280 254 1008 0 2 16 2048 1024 4 20064 416 20480 1280 246 1008 8 2 16

Reverse DPDCH Field ChannelBit Rate (kbps) Channel Symbol Rate (ksps) SF Bits / Frame Bits / Slot N _data 16 16 256 160 10 10 32 32 128 320 20 20 64 64 64 640 40 40 128 128 32 1280 80 80 256 256 16 2560 160 160 512 512 8 5120 320 320 1024 1024 4 10240 640 640

Reverse DPCCH Field Channel Bit Rate (kbps) Channel Symbol Rate (ksps) SF Bits / Frame Bits / Slot N _pilot N _TPC N _TFCI N _FBI 16 16 256 160 10 6 2 2 0 16 16 256 160 10 8 2 0 0 16 16 256 160 10 5 2 2 One 16 16 256 160 10 7 2 0 One 16 16 256 160 10 6 2 0 2 16 16 256 160 10 5 One 2 2

Tables 1, 2, and 3 illustrate the case where there is only one DPDCH as a traffic channel, and there may exist second, third, and fourth DPDCHs according to a service, and the DPDCHs may be different regardless of the forward and reverse DPDCHs. May exist.

The hardware configuration diagram according to the prior art is as follows. In the following description of the base station transmitter and mobile station transmitter of the present invention, a case in which there are three DPDCHs as traffic channels is described as an example. However, the number of DPDCHs is at least one and is not limited to the number.

3A shows a simplified configuration of a conventional base station transmitter.

Referring to FIG. 3A, the multipliers 111, 121, 131, and 132 have gain coefficients G ₁ , G ₂ , G ₃ , and G on the outputs of the DPCCH and DPDCH signal generators 101, 102, 103, 104 which perform channel encoding and interleaving. _Is a device for multiplying by ₄ . The gain coefficients G ₁ , G ₂ , G ₃ , and G ₄ may have different values depending on the situation, such as a service type or a handover situation. The multiplexer 112 multiplexes DPCCH and DPDCH in time to have a slot structure as shown in FIG. 2A. The first S / P 113 is a serial / parallel converter for distributing the output of the multiplexer 112 to I and Q channels. The second S / P 133 and the third S / P 134 are devices for distributing the DPDCH ₂ and the DPDCH ₃ in parallel and in parallel and distributing them to the I and Q channels. The serial-to-parallel output is multiplied by channelization codes C _ch1 , C _ch2 , C _ch3 to spread and channel distinguish the outputs in multipliers 114, 122, 135, 136, 137, and 138. An orthogonal code is used for the channel identification code. The outputs multiplied by the channel division codes in the multipliers 114, 122, 135, 136, 137, and 138 are summed by the first summer 115 and the second summer 123 to generate I and Q channel signals. The I-channel signals are summed and output from the first summer 115. The output of the second summer 123 that sums the Q-channel signals is phase shifted 90 degrees at the phase shifter 124. The summer 116 sums the output of the first summer 115 and the output of the phase shifter 124 to generate a complex signal I + jQ signal. The multiplier 117 is scrambled by the PN sequence C _scramb allocated to each base station. In the fourth S / P 118, the multiplier 117 performs serial-to-parallel conversion on the scrambled signal and distributes the scrambled signal to I and Q channels. The output of the fourth S / P 118 passes through the low pass filters 119 and 125 for I and Q channels to generate a signal with limited bandwidth. The output signal of the filter is multiplied by a carrier wave in the multipliers 120 and 126 to be shifted to the high frequency band, and the summer 127 sums and outputs the signals of the I and Q channels.

3b shows a simplified configuration of a conventional mobile station transmitter.

Referring to FIG. 3B, the multipliers 211, 221, 223, and 225 are channelization codes for spreading and channel distinguishing the outputs of the DPCCH and DPDCH signal generators 201, 202, 203, and 204 that perform channel encoding and interleaving. ) This device is to be multiplied by C _ch1 , C _ch2 , C _ch3 , and C _ch43 . An orthogonal code is used for the channel identification code. The output of the multiplier multiplied by the channel division code is multiplied by the gain coefficients G ₁ , G ₂ , G ₃ , G ₄ in multipliers 212, 222, 224, and 226. The gain coefficients G ₁ , G ₂ , G ₃ , and G ₄ may have different values. The outputs of the multipliers 212 and 222 are summed by the first summer 213 and output as an I channel signal, and the outputs of the multipliers 224 and 226 are summed by the second summer 227 and output as a Q channel signal, which is a Q channel signal. The output of second summer 227 is phase shifted 90 degrees at phase shifter 228. The summer 214 adds the output of the first summer 213 and the output of the phase shifter 228 to generate a complex signal I + jQ signal. The multiplier 215 scrambles the complex signal by a PN sequence (C _scramb ) allocated to each base station, and in the S / P 229, the serial / parallel converter converts the scrambled signal into I and Q channels. The output of the S / P 229 passes through the low pass filters 216 and 230 for each I channel and Q channel to generate a signal with limited bandwidth. The output signals of the low pass filters 216 and 230 are multiplied by the carriers in the multipliers 217 and 231 to be shifted to the high frequency band, and the summer 218 sums the signals of the I channel and the Q channel and outputs them.

The transmission signal configuration diagram of a base station and a mobile station according to the prior art is as follows.

FIG. 5A is a diagram illustrating transmission of a forward DPCCH and a reverse DPCCH signal in a control maintaining sub-state when transmission of the reverse DPDCH in the conventional scheme is stopped.

5B is a diagram illustrating transmission of a forward DPCCH and a reverse DPCCH signal in a control sustaining sub-state when transmission of the forward DPDCH in the conventional manner is stopped.

As shown in Figs. 5A and 5B, the mobile station continuously transmits the reverse DPCCH in the control maintaining sub-state to avoid the resynchronization acquisition process at the base station. If there is no traffic data to be transmitted for a long time in the control hold state, when the base station and the mobile station transition to the Radio Resource Control Connection Released state, the reverse DPCCH stops transmitting but the mobile station transmits the DPCCH before the transition. Since the pilot symbols and the power control bits are transmitted through the RX, the interference of the reverse link is increased. The increase in reverse link interference reduces the capacity of the reverse link.

The continuous transmission of the reverse DPCCH in the control-maintenance sub-state according to the conventional scheme is advantageous in that it can avoid the synchronous reacquisition process at the base station. However, as mentioned above, due to the increased interference on the reverse link, Reduce the capacity of the reverse link. In addition, the transmission of consecutive reverse power control bits on the forward link results in increased interference and reduced capacity of the forward link. In addition to minimizing the time spent in the synchronization reacquisition process in the base station, it is necessary to minimize the increase in the interference caused by the transmission of the reverse DPCCH and the increase in the interference caused by the reverse power control bit transmission on the forward link.

Accordingly, an object of the present invention is to minimize the time spent in the synchronization reacquisition process at the base station in the control maintenance sub-state of the mobile communication system, increase the interference by transmitting the reverse DPCCH channel, and transmit the reverse power control bit to the forward link. The present invention provides a communication apparatus and method capable of minimizing an increase in interference caused by the interference.

Another object of the present invention is to provide an apparatus and method for controlling a dedicated control channel signal in the same intermittent transmission unit or another intermittent transmission unit as the actual slot unit in a mobile communication system.

It is still another object of the present invention to provide an apparatus and method for controlling power of a first slot of a next frame by placing a power control bit in a last slot of each frame in a mobile communication system.

Another object of the present invention is to provide an apparatus and method for controlling a transmission control channel signal in an irregular pattern in a mobile communication system.

According to the present invention for achieving the above objects, the reverse dedicated control channel signal is transmitted in the same unit as the slot unit or in a different unit according to the reverse intermittent transmission pattern in the control maintenance sub-state. The forward dedicated control channel signal is transmitted according to the forward intermittent transmission pattern corresponding to the reverse intermittent transmission pattern. The forward intermittent transmission pattern is the same as the backward intermittent transmission pattern, and there is an offset between them. The forward intermittent transmission pattern intercepts pilot symbols of one slot in each frame, rate information and power control bits of an adjacent next slot. In the last slot of each frame of the forward dedicated control channel and the reverse dedicated control channel, a power control bit for controlling the power of the first slot of the next frame is located.

1A is a state transition diagram for packet data services.

1B is a transition diagram between a user data active part state and a control holding part state in the DCH / DCH state.

Figure 2a is a slot configuration of the forward DPDCH and DPCCH

Figure 2b is a slot configuration of the reverse DPDCH and DPCCH

Figure 3a is a simplified configuration diagram of a conventional base station transmitter.

3B is a simplified configuration diagram of a conventional mobile station transmitter.

Figure 4a is a block diagram of a base station transmitter according to an embodiment of the present invention.

Figure 4b is a block diagram of a mobile station transmitting apparatus according to an embodiment of the present invention.

Figure 4c is a block diagram of a base station transmitter to which the intermittent position selector according to another embodiment of the present invention.

4D is a block diagram of a mobile station transmitting apparatus employing an intermittent position selector according to another embodiment of the present invention.

5A is a diagram illustrating transmission of a forward DPCCH and a reverse DPCCH signal when the reverse DPDCH transmission is stopped in a conventional control maintenance sub-state;

5B is a diagram illustrating transmission of a forward DPCCH and a reverse DPCCH signal when transmission of the forward DPDCH is stopped in the conventional control maintenance sub-state;

Figure 6a is a signal transmission according to the regular or intermittent transmission pattern of the reverse DPCCH in the control maintenance sub-state of the present invention.

Figure 6b is another signal transmission according to the regular or intermittent transmission pattern of the reverse DPCCH in the control maintenance sub-state of the present invention.

FIG. 7A is a signal transmission diagram when a reverse DPDCH message occurs during intermittent transmission of a reverse DPCCH in a control maintaining sub-state of the present invention. FIG.

FIG. 7B is another signal transmission diagram when a reverse DPDCH message occurs during intermittent transmission of the reverse DPCCH in the control maintaining sub-state of the present invention. FIG.

8A is a diagram illustrating signal transmission of the forward and reverse links according to the suspension of forward DPDCH.

FIG. 8B is another diagram illustrating signal transmission of the forward and reverse links according to transmission stop of the reverse DPDCH. FIG.

FIG. 8C is another diagram illustrating signal transmission of the forward and reverse links according to transmission stop of the forward DPDCH. FIG.

FIG. 8D is another diagram illustrating signal transmission of the forward and reverse links according to the suspension of transmission of the reverse DPDCH. FIG.

FIG. 9A is a diagram illustrating signal transmission of the forward and reverse links according to transmission stop of the forward DPDCH (forward DPCCH intermittent transmission). FIG.

FIG. 9B is another diagram illustrating signal transmission of the forward and reverse links according to the transmission stop of the reverse DPDCH (forward DPCCH intermittent transmission). FIG.

10A is a block diagram of a base station transmitter according to another embodiment of the present invention.

10B is a block diagram of a mobile station transmitting apparatus according to another embodiment of the present invention.

11A is a signal transmission diagram according to a first embodiment of intermittent transmission of forward and reverse DPCCH of the present invention.

11B is a signal transmission diagram according to a second embodiment of intermittent transmission of forward and reverse DPCCH of the present invention.

11C is a signal transmission diagram according to a third embodiment of intermittent transmission of forward and reverse DPCCH of the present invention.

11D is a signal transmission diagram according to a fourth embodiment of intermittent transmission of forward and reverse DPCCH of the present invention.

11E is a signal transmission diagram according to a fifth embodiment of intermittent transmission of forward and reverse DPCCH of the present invention.

12A is a signal transmission diagram according to a sixth embodiment of intermittent transmission of forward and reverse DPCCH of the present invention.

12B is a signal transmission diagram according to a seventh embodiment of intermittent transmission of forward and reverse DPCCH of the present invention.

12C is a signal transmission diagram according to an eighth embodiment of intermittent transmission of forward and reverse DPCCH of the present invention.

12D is a signal transmission diagram according to a ninth embodiment of intermittent transmission of forward and reverse DPCCH of the present invention.

12E is a signal transmission diagram according to a tenth embodiment for intermittent transmission of forward and reverse DPCCH of the present invention.

13A is a conceptual diagram according to a first embodiment for determining a positioning bit during intermittent transmission of forward and reverse DPCCHs of the present invention;

FIG. 13B is a conceptual diagram according to a second embodiment of determining a positioning bit during intermittent transmission of forward and reverse DPCCHs according to the present invention; FIG.

FIG. 13C is a conceptual diagram according to a third embodiment of determining a positioning bit during intermittent transmission of forward and backward DPCCHs according to the present invention; FIG.

FIG. 13D is a conceptual diagram according to a fourth embodiment for determining a positioning bit during intermittent transmission of forward and reverse DPCCHs according to the present invention; FIG.

14A is a signal transmission diagram according to Embodiment 11 for intermittent transmission of forward and reverse DPCCH of the present invention.

14B is a signal transmission diagram according to a twelfth embodiment of intermittent transmission of forward and reverse DPCCH of the present invention.

14C is a signal transmission diagram according to Embodiment 13 of intermittent transmission of forward and reverse DPCCH of the present invention.

14D is a signal transmission diagram according to Embodiment 14 for intermittent transmission of forward and reverse DPCCH of the present invention.

The present invention relates to a mobile communication system of a code division multiple access method. The embodiments of the present invention are necessary to embody the main subject matter of the present invention and do not limit the content of the present invention.

In describing the embodiments of the present invention, the components of the other drawings that perform the same operations as the aforementioned components use the same reference numerals as before. Differentiated processes from the conventional method are given new reference numerals, and description is mainly focused on differentiated points.

In the following description, "normal transmission" means continuous transmission of TFCI, TPC, pilot symbols, etc. included in the forward or reverse DPCCH without interruption. In the following description, 'Gated transmission' means that TFCI, TPC, pilot symbol, etc. included in the forward or reverse DPCCH are not transmitted in a specific power control group (or slot) according to a predetermined pattern. In a specific power control group (or slot), it means to transmit. The interruption of transmission on the forward DPCCH during intermittent transmission may be TFCI and TPC in one power control group (or one slot), or include all TFCI, TPC and pilot symbols in one power control group (or one slot). You may. In the intermittent transmission, transmission is stopped on the reverse DPCCH in the entire TFCI, TPC, FBI and pilot symbols in one power control group (or one slot).

On the other hand, the operation of the intermittent transmission to be described below may be applied even when the intermittent transmission unit is the same as the slot unit, and may be applied even when the intermittent transmission unit and the slot unit are different. In the case where the intermittent transmission unit and the slot unit are different, it is preferable to interrupt the TFCI, the TPC and the pilot symbol differently. That is, the nth pilot symbol and the n + 1th TFCI and TPC may be set in an intermittent transmission unit.

Also, in the present invention, since the performance of the beginning of the frame is very important, the TPC for power control of the first slot of the next frame is placed in the last slot of one frame. That is, the forward DPCCH and the TPC bits of the reverse DPCCH are positioned in the last slot of the n th frame, and the power of the first slot of the n + 1 th frame is used by using the TPC bits in the last slot of the n th frame. Allow power control.

Hardware configuration according to an embodiment of the present invention is as follows.

4A illustrates a configuration of a base station transmitter according to an embodiment of the present invention. The difference from the configuration of the conventional base station transmitter of FIG. 3A is that the output of the multiplier 111 is interrupted by the Gated Transmission Controller 141 for the forward DPCCH. In other words, the Gated Transmission Controller 141 intermittently transmits the TFCI and TPC bits in the forward DPCCH to the mobile station in the power control group (or timeslot) promised in the forward DPCCH in the control hold state where no traffic data is transmitted on the forward and reverse DPDCHs. Send it. In addition, the intermittent transmission controller 141 may be configured to transmit one power control group (or one slot as a whole) to the mobile station including pilot symbols, TFCI, and TPC bits of the forward DPCCH in a control maintaining sub-state in which traffic data is not transmitted on the forward and reverse DPDCHs. Intermittent transmission in the power control group (or timeslot).

The forward intermittent transmission pattern is the same pattern as the reverse intermittent transmission pattern, but an offset may exist between the two for efficient power control. The above offset is given as a system parameter.

The intermittent transmission controller 141 may perform an operation when the intermittent transmission unit is the same as the slot unit or may perform an operation when the intermittent transmission unit is different from the slot unit. When the intermittent transmission unit and the slot unit are different, the intermittent transmission controller 141 intercepts the TFCI, the TPC, and the pilot symbol differently. That is, the nth pilot symbol and the n + 1th TFCI and TPC are set in the intermittent transmission unit.

The intermittent transmission controller 141 also places a TPC for power control of the first slot of the next frame in the last slot of one frame for performance of the beginning of the frame. That is, the forward DPCCH and the TPC bits of the reverse DPCCH are positioned in the last slot of the n th frame, and the power of the first slot of the n + 1 th frame is used by using the TPC bits in the last slot of the n th frame. Allow power control.

4B is a block diagram of a mobile station transmitting apparatus according to an embodiment of the present invention. The difference from the conventional mobile station transmitter configuration of FIG. 3B is that there is an intermittent transmission controller 241 for intermittent transmission of the reverse DPCCH. That is, the Gated Transmission Controller 141 includes one power control group (or one slot) including pilot symbols, TFCI, FBI, and TPC bits in the reverse DPCCH in a control maintaining sub-state in which traffic data is not transmitted to the forward and reverse DPDCHs. Intermittent transmission in the power control group (or timeslot) promised with the mobile station. Transmission of the pilot symbol and the TPC bit on the reverse DPCCH is essential for synchronous detection, and there is no way to send TPC, FBI, and pilot symbols to another reverse channel in a period where transmission of the channel is stopped.

Transmission signal configuration diagrams of a base station and a mobile station according to an embodiment of the present invention are as follows.

6A illustrates a signal transmission diagram according to a regular or intermittent transmission pattern of a reverse DPCCH in a control maintenance sub-state according to an embodiment of the present invention. Reference numerals 301, 302, 303, and 304 of FIG. 6A illustrate different gating rates according to the ratio of duty cycles (hereinafter, referred to as DCs). Reference numeral 301 shows transmission without the reverse DPCCH as in the prior art, and reference numeral 302 controls power only when DC is 1/2 (only 1/2 of the total power control group in one frame). It shows sending regularly by filtering groups (or timeslots). Reference numeral 303 denotes one power control group (three, seven, eleven, and fifteen power control groups per four power control groups in the case of DC = 1/4 (only one fourth of all power control groups in one frame)). Shows regular transmission. Reference numeral 304 is regularly transmitted from one power control group (7th and 15th power control groups) per eight power control groups when DC = 1/8 (only 1 / 8th of the entire power control group is transmitted within one frame). It is shown. In the embodiment of FIG. 6A, when the DC = 1/2 and 1/4, the intermittent transmission controller 241 of the mobile station regularly regulates the power control group of the reverse DPCCH. Therefore, arbitrary power control groups may be interrupted. That is, in the case of DC = 1/2, one adjacent power control group may be continuously interrupted in accordance with an irregular pattern without transmitting every power control group regularly. In the case of DC = 1/2, half of the entire power control group can also be transmitted continuously in the second half of the frame (the 8th to 15th power control groups). In the case of DC = 1/4, 1/4 of the entire power control group can be transmitted continuously (from the 12th to 15th power control group) from 3/4 of the frame. In the case of DC = 1/8, 1/8 of the entire power control group can be transmitted continuously (from the 14th to 15th power control group) from 7/8 of the frame.

In the state transition method, the following cases may exist, and the transition method is determined by the system configuration. One method is from DC = 1/1 to DC = 1/2, from DC = 1/1 to DC = 1/4 and from DC = 1/1 to DC = by a set timer value or a transition indication message at the base station. Transition to 1/8 at a time. Another method is to transition sequentially from DC = 1/1 to DC = 1/2, from DC = 1/2 to DC = 1/4 and from DC = 1/4 to DC = 1/8 It is a transition. The selection of the DC value can be determined in consideration of the capacity of the mobile station, the quality of the channel environment, and the like.

6B illustrates a signal transmission diagram according to a regular or intermittent transmission pattern of a reverse DPCCH in a control maintaining substate according to another embodiment of the present invention. Reference numerals 305, 306, and 307 of FIG. 6B show gating rates different according to the ratio of DC. Reference numeral 305 denotes two consecutive power control groups at regular positions (Nos. 2 to 3 and 6 to 7) when DC = 1/2 (only 1/2 of the total power control groups in one frame). 10 to 11 and 14 to 15 power control groups). Reference numeral 306 denotes two consecutive power control groups at regular positions (Nos. 6 to 7 and 14 to 15) in the case of DC = 1/4 (only 1/4 of the total power control groups in one frame). Transmission in the power control group). Reference numeral 307 denotes two consecutive power control groups at regular positions (No. 14 to 15 power control groups) when DC = 1/8 (only one eighth of all power control groups are transmitted within one frame). It shows the transmission. In the embodiment of FIG. 6B, when the DC = 1/2 and 1/4, the intermittent transmission controller 241 of the mobile station regularly regulates the power control group of the reverse DPCCH, but as another embodiment, the entire power control group May control an arbitrary power control group according to the corresponding DC. That is, in the case of DC = 1/2, two consecutive power control groups are not regularly transmitted by filtering two power control groups, but four consecutive power controls are performed by continuously intermittently intermitting any adjacent power control groups in an irregular pattern. You can also crack down on groups (e.g. powers 2 through 5).

The transmission signal configuration diagram of the base station and the mobile station according to another embodiment of the method of selecting the power control group intermittent position (location of transmitting the signal in one or three of the continuous power control group or one of five power control group) is as follows. same. In the present embodiment below, an interruption rate 1/3 or 1/5 will be described as an example in the case of having 15 slots (power control group) in one frame.

4C illustrates a configuration of a base station transmitter according to an embodiment of a method for selecting a power control group intermittent position. The difference from the configuration of the base station transmitter of FIG. 4A is that the position of the transmission power control group is intermittent by the intermittent transmission position selector 142 with respect to the forward DPCCH.

FIG. 4D illustrates a configuration of a mobile terminal transmitter according to an embodiment of a method for selecting an intermittent position for a power control group. The difference from the configuration of the mobile station transmitter of FIG. 4B is that the position of the transmission power control group is intermittent by the intermittent transmission position selector 242 with respect to the reverse DPCCH.

Irregularly irregular positions of the power control group are intended to prevent adverse effects related to electromagnetic waves by power of regular transmission signals. In another embodiment of the present invention, a scrambling code is used as a method for irregularly transmitting a signal intermittently transmitted.

One of the power control group intermittent positioning method is to use the system frame number (SFN) of the forward signal immediately before transmitting the reverse signal and the scrambling code generated to descramble the received signal in the mobile terminal. There is use. The mobile station uses the system frame number (SFN) of the forward signal to read the code bits of a specific position of the scrambling code and uses this value to determine the position of the power control group to be intercepted of the transmission signal. Since the SFN continuously transmits a value of 0 to 71 to the base station broadcast channel, the mobile station can receive and obtain the broadcast channel. The scrambling code may also use a secondary scrambling code or a base station primary scrambling code assigned by the base station for the mobile station. If the base station knows the position at which the mobile station transmits the intermittent transmission signal, it can receive exactly at that position. Therefore, it is advantageous that the transmitting and receiving sides are contracted with each other for the position of the intermittent transmission. In the present invention, the base station and the mobile station use the same scrambling code having randomness, and since the periodicity is reduced, the position is determined by using the SFN so that it cannot be recognized by the human ear.

The intermittent transmission position selector 242 of the mobile station is a Gold Code, which is a real part of the scrambling code generated within itself to descramble the SFN (System Frame Number) of the received signal and the received signal. Select one of three slots when DC = 1/3 and select one of five slots when DC = 1/5 using the specific bits of this gold code. Hereinafter, an interval corresponding to 3 slots and 5 slots, which is a selection range for DC = 1/3 and DC = 1/5, is referred to as a gating section.

Find the location of a specific bit of the gold code to use in the following order.

1. Multiply the integer between 1 and 35 by the SFN (System Frame Number: 0 ~ 71) of the received signal just before transmission. Let x be the result.

2-a. In the case of DC = 1/3, as shown in FIG. 13A, one bit that is separated by x chip from the start point of the Gold code corresponding to the M gating intervals used to generate the forward signal is selected.

2-b. In case of DC = 1/5, as shown in FIG. 13B, two bits separated by x chip are selected from the start point of the Gold code corresponding to the M gating intervals used to generate the forward signal.

3-a. If DC = 1/3, the position of the power control group to be transmitted is determined by one bit selected. Since only one bit is used, the position is irregularly set between two power control group positions, which are determined in advance among the three transmittable power control group positions.

3-b. If DC = 1/5, the position of the power control group to be transmitted is determined by the two selected bits. Since only two bits are used, the position is irregularly set between four power control group positions, which are determined by the pre-regulation, among the five transmittable power control group positions.

4. If the SFN (System Frame Number) is changed, start again from step 1 with the new value. At this time, the integer value multiplied in step 1 is kept intact.

The position of the transmit power control group of the forward signal is applied to the system frame number (SFN) of the forward signal and the scrambling code of the forward signal in the reverse slot as described above. The same pattern but constant offset may exist between the two for efficient power control. The above offset is given as a system parameter. In addition, the forward intermittent transmission pattern may be formed by using a predetermined predetermined position regardless of the backward intermittent transmission pattern.

14A is an embodiment of the method of selecting the power control group intermittent position when DC = 1/3. The intermittent transmission locator 242 of the mobile station receives a scrambling code of the forward signal and a serial frame number (SFN) of the forward signal and receives one bit of a specific part of the gold code that is a real part of the scrambling code. Is selected in the above order to select the position of the transmit power control group of the reverse DPCCH signal. At this time, the position of the forward power control group transmitted from the base station is made at a point away from the position of the power control group received in the reverse direction by a certain number of slots.

14B is an embodiment of the method of selecting the power control group intermittent position when DC = 1/5. The intermittent transmission position selector 242 of the mobile station receives the scrambling code of the forward signal and the SFN (Serial Frame Number) of the forward signal and selects two bits of a specific part of the gold code, which is a real part of the scrambling code, in the above order. Select the transmission power control group position of the DPCCH signal. At this time, the position of the forward power control group transmitted from the base station is made at a point away from the position of the power control group received in the reverse direction by a certain number of slots.

As in the power control group intermittent position selection method, in addition to the SFN (Serial Frame Number), the number of channel division codes of the forward signal applied differently to each mobile terminal in determining a specific part of the Gold Code required for the position selection. May be additionally used. The use of the number of the channel identification code of the forward signal as described above is to prevent the signals for the different mobile terminals of the forward signal to transmit the power control group at the same time position.

Another power control group intermittent position selection method is N among the SFN (Serial Frame Number) of the forward signal immediately before transmitting the reverse signal and the scrambling code generated to perform descrambling on the received signal in the mobile terminal. The position of the transmission power control group is determined using a value obtained by performing a modulo 3 or modulo 5 operation on a decimal value corresponding to two bits. This method can determine the position of the transmit power control group by making the most of the given gating interval.

The positions of the specific N bits of the gold code to be used are obtained in the following order.

1. Multiply the integer between 1 and 35 by the SFN (Serial Frame Number: 0 ~ 71) of the received signal just before transmission. Let x be the result.

2-a. In the case of DC = 1/3, as shown in FIG. 13C, N bits that are separated by x chip from the start point of the Gold code corresponding to the M gating intervals used to generate the forward signal are selected.

2-b. In the case of DC = 1/5, as shown in FIG. 13D, N bits that are separated by x chip at the start of the Gold code corresponding to the M gating sections used to generate the forward signals are selected.

3-a. In case of DC = 1/3, the position of the power control group to be transmitted is determined by using modulo 3 operation on the decimal value corresponding to the selected N bits. Since the result of modulo 3 operation is one of 0, 1, 2, each value specifies the position of a specific slot within the gating interval.

3-b. If DC = 1/5, the position of the power control group to be transmitted is determined by using the modulo 5 operation on the decimal value corresponding to the selected N bits. Since the result of modulo 5 operation is one of 0, 1, 2, 3, 4, each value specifies the position of a specific slot within the gating interval.

4. If the SFN (Serial Frame Number) is changed, start again from step 1 with the new value. At this time, the integer value multiplied in step 1 is kept intact.

In the power control group intermittent position selection method, the position of the transmission power control group is selected using 72 scrambling codes (SFNs) as the scrambling code of the receiver. Therefore, the position of the transmission power control group has a 720 msec period. In order for the position of the transmission power control group to have a period of 720 msec or more, it is also possible to change the x value whenever the SFN becomes a specific value.

14C is an embodiment of the method of selecting the power control group intermittent position when DC = 1/3. The intermittent transmission position selector 242 of the mobile station receives the scrambling code of the forward signal and the serial frame number (SFN) of the forward signal, and N bits of a specific part of the gold code that is a real part of the scrambling code. After selecting, perform modulo 3 operation on the decimal value corresponding to this value to select the position of transmit power control group of reverse DPCCH signal. At this time, the position of the forward power control group transmitted from the base station is made at a point away from the position of the power control group received in the reverse direction by a certain number of slots.

14D is an embodiment of the method for selecting a power control group interruption position when DC = 1/5. The intermittent transmission position selector 242 of the mobile station receives the scrambling code of the forward signal and the serial frame number (SFN) of the forward signal, and N bits of a specific part of the gold code that is a real part of the scrambling code. After selecting, perform modulo 5 operation on the decimal value corresponding to this value to select the position of transmit power control group of reverse DPCCH signal. At this time, the position of the forward power control group transmitted from the base station is made at a point away from the position of the power control group received in the reverse direction by a certain number of slots.

In the state transition method, the following cases may exist, and the transition method is determined by the system configuration. One method is from DC = 1/1 to DC = 1/2, from DC = 1/1 to DC = 1/4 and from DC = 1/1 to DC = by a set timer value or a transition indication message at the base station. Transition to 1/8 at a time. Another method is to transition sequentially from DC = 1/1 to DC = 1/2, from DC = 1/2 to DC = 1/4 and from DC = 1/4 to DC = 1/8 It is a transition. The selection of the DC value can be determined in consideration of the capacity of the mobile station, the quality of the channel environment, and the like.

7A and 7B illustrate reverse DPCCHs when a dedicated medium access control (MAC) logical channel is generated in the control maintenance sub-state of FIGS. 6A and 6B to transmit a message to be transmitted through a reverse DPDCH, which is a physical channel. Reference numeral 311 of FIG. 7A illustrates a case in which a reverse DPDCH message occurs while the reverse DPCCH is not intermittently transmitted (that is, DC = 1/1 during continuous transmission). Reference numeral 312 illustrates a case in which a reverse DPDCH message occurs during DC = 1/2 intermittent transmission of the reverse DPCCH. Reference numeral 313 illustrates a case in which a reverse DPDCH message occurs during DC = 1/4 intermittent transmission of the reverse DPCCH. Reference numeral 314 illustrates a case in which a reverse DPDCH message occurs during DC = 1/8 intermittent transmission of the reverse DPCCH. Even if the power control group does not transmit in the intermittent transmission pattern as in reference numerals 312, 313, and 314, when the reverse DPDCH is transmitted within the interval, the power control group in the interval is normally transmitted. In the normal transmission power control group, the TPC bit for forward power control may be omitted and the pilot section may be extended to be the length of the power control group and transmitted. After transmitting the reverse DPDCH message by normal transmission of the power control group, the subsequent power control group may transmit the reverse DPCCH without interruption, and continue to transmit by intercepting the original DC value until receiving the state transition message from the base station. It may be. That is, when a reverse DPDCH message is transmitted during intermittent transmission at DC = 1/2, the power control group of the section is normally transmitted, and intermittent transmission at DC = 1/2 is performed, and then a state transition message is received from the base station. After the transition to the user data active part state, the intermittent transmission may be stopped with DC = 1.

Similar to the reverse DPCCH, in the forward link, if a forward DPDCH message occurs during intermittent transmission on the DPCCH, even if the power control group does not transmit in the intermittent transmission pattern, the power control group in the section is normally transmitted. In the normal transmission power control group, the TPC bit for reverse power control may be omitted and the pilot section may be extended to be the length of the power control group and transmitted. After transmitting the forward DPDCH message by normal transmission of the power control group, the subsequent power control group may transmit the forward DPCCH without interruption, and intermittently transmit the original DC value until the state transition request message is received from the mobile station. You can also continue. That is, when the forward DPDCH message is transmitted during the intermittent transmission at DC = 1/2, the power control group of the section is normally transmitted, and the intermittent transmission is performed at DC = 1/2 again before receiving a state transition request message from the mobile station. Then, when the user data transition to the active state, the intermittent transmission may be stopped with DC = 1.

Reference numeral 315 of FIG. 7B illustrates a case in which a reverse DPDCH message occurs during DC = 1/2 intermittent transmission of the reverse DPCCH. Reference numeral 316 illustrates a case in which a reverse DPDCH message occurs during the DC = 1/4 intermittent transmission of the reverse DPCCH. Reference numeral 317 shows a case in which a reverse DPDCH message occurs during the DC = 1/8 intermittent transmission of the reverse DPCCH. Even when the power control group does not transmit in the intermittent transmission pattern as in reference numerals 315, 316, and 317, when the reverse DPDCH is transmitted within the interval, the power control group in the interval is normally transmitted. In the normal transmission power control group, the TPC bit for forward power control may be omitted and the pilot section may be extended to be the length of the power control group and transmitted. After transmitting the reverse DPDCH message by normal transmission of the power control group, the subsequent power control group may transmit the reverse DPCCH without interruption, and continue to transmit by intercepting the original DC value until receiving the state transition message from the base station. It may be. That is, during intermittent transmission at DC = 1/2, normal power is transmitted to the power control group in the section while the reverse DPDCH message is transmitted, and then intermittent transmission at DC = 1/2 is received, and the state transition message is received from the base station. After the transition to the user data active part state, the intermittent transmission may be stopped with DC = 1.

The reverse DPCCH and the forward DPCCH may be simultaneously interrupted and transmitted in the same pattern. During the intermittent transmission of the forward DPCCH, a message to be transmitted to the forward DPDCH is generated, and the power control group is normally transmitted to transmit the forward DPDCH message, and then the forward DPCCH can be transmitted without interruption from the subsequent power control group. The transmission may continue by intercepting the original DC value until the state transition receives the request message from the controller. That is, during intermittent transmission at DC = 1/2, while the forward DPDCH message is being transmitted, normal transmission of the power control group of the section is performed, and then intermittent transmission at DC = 1/2, and then a state transition request message is received from the mobile station. Then, when the user data transition to the active state, the intermittent transmission may be stopped with DC = 1.

8A is a diagram illustrating signal transmission of the forward and reverse links according to the suspension of transmission of the forward DPDCH. In the user data active part state without the reverse DPDCH, as shown by reference numeral 801, when the transmission of the forward DPDCH is stopped, the base station and the mobile station may transition to the control maintenance state when the forward DPDCH message exceeds the set timer value or a forward DPDCH message occurs. Will be done. In the embodiment of FIG. 8A, a message for a state transition to a control maintenance sub-state is generated by a base station. When there is no forward and reverse DPDCH, the mobile station may send a message requesting a state transition to the base station. In the forward DPCCH transmission of FIG. 8A, all TFCI, TPC, and pilot symbols may be transmitted without interruption. Since the TPC bit has a meaningless TPC value determined by measuring the power strength of the pilot symbol position of the intermittent power control group in the reverse DPCCH, the mobile station transmits the base station for the reverse power control in consideration of the interruption pattern of the reverse DPCCH. The meaningless TPC value of one TPC bit is ignored and transmitted at the same intensity as the transmission power transmitted from the previous power control group. In addition, in the transmission of the forward DPCCH of FIG. 8A, only TFCI and TPC in the forward DPCCH may be interrupted, and pilot symbols in the forward DPCCH may not be interrupted. The interruption pattern at this time is the same as the interruption pattern of the reverse DPCCH of the mobile station. The power control group which intercepts the TPC in the forward DPCCH refers to a TPC generated by measuring a pilot symbol corresponding to the intermittent power control group in the DPCCH transmitted by the mobile station.

Reference numeral 802 illustrates that a message for state transition is generated at the base station and transmitted to the mobile station through the forward DPDCH. In this case, the mobile station intermittently transmitting the reverse DPCCH may stop the intermittent transmission and continue the transmission at DC = 1 after receiving the state transition message. In addition, the mobile station performing intermittent transmission of the reverse DPCCH may continue intermittent transmission even after receiving the state transition message, and then stop intermittent transmission at the time point of the state transition, and transmit DC = 1.

8B is a diagram illustrating signal transmission of the forward and reverse links according to the suspension of transmission of the reverse DPDCH. In the user data active part state without the forward DPDCH, as shown by reference numeral 803, when the transmission of the reverse DPDCH is stopped, the base station and the mobile station transition to a state exceeding the set timer value or exchanging state transition messages. In the embodiment of FIG. 8B, the state transition message is generated through the forward DPDCH, but the state transition message may also occur in the reverse DPDCH of the mobile station. In the forward DPCCH transmission of FIG. 8B, all TFCI, TPC, and pilot symbols can be transmitted without interruption. Since the TPC bit has a meaningless TPC value determined by measuring the power strength of the pilot symbol position of the intermittent power control group in the reverse DPCCH, the mobile station transmits the base station for the reverse power control in consideration of the interruption pattern of the reverse DPCCH. The meaningless TPC value of one TPC bit is ignored and transmitted at the same intensity as the transmission power transmitted from the previous power control group. In addition, in the transmission of the forward DPCCH of FIG. 8B, only TFCI and TPC may be controlled, and pilot symbols in the forward DPCCH may not be controlled. The interruption pattern at this time is the same as the interruption pattern of the reverse DPCCH of the mobile station. The power control group which intercepts the TPC in the forward DPCCH refers to a TPC generated by measuring a pilot symbol corresponding to the intermittent power control group in the DPCCH transmitted by the mobile station.

Reference numeral 804 illustrates that a message for state transition is generated at the base station and transmitted to the mobile station through the forward DPDCH. In this case, the mobile station intermittently transmitting the reverse DPCCH may stop the intermittent transmission and continue the transmission at DC = 1 after receiving the state transition message. In addition, the mobile station performing intermittent transmission of the reverse DPCCH may continue intermittent transmission even after receiving the state transition message, and then stop intermittent transmission at the time point of the state transition, and transmit DC = 1.

8C is a diagram illustrating signal transmission of the forward and reverse links according to transmission stop of the forward DPDCH. In the user data active part state without the reverse DPDCH, as shown by reference numeral 805, when the transmission of the forward DPDCH is stopped, the base station and the mobile station may transition to the control maintenance state when the forward DPDCH message is exceeded or a forward DPDCH message occurs for state transition. Will be done. In the embodiment of FIG. 8C, a message for a state transition to a control maintenance sub-state is generated at the base station. When there is no forward and reverse DPDCH, the mobile station may send a message requesting a state transition to the base station. In the transmission of the forward DPCCH of FIG. 8C, all TFCI, TPC, and pilot symbols may be transmitted without interruption. Since the TPC bit has a meaningless TPC value determined by measuring the power strength of the pilot symbol position of the intermittent power control group in the reverse DPCCH, the mobile station transmits the base station for the reverse power control in consideration of the interruption pattern of the reverse DPCCH. The meaningless TPC value of one TPC bit is ignored and transmitted at the same intensity as the transmission power transmitted from the previous power control group. In addition, in the transmission of the forward DPCCH of FIG. 8C, only TFCI and TPC in the forward DPCCH may be interrupted, and pilot symbols in the forward DPCCH may not be interrupted. The interruption pattern at this time is the same as the interruption pattern of the reverse DPCCH of the mobile station. The power control group which intercepts the TPC in the forward DPCCH refers to a TPC generated by measuring a pilot symbol corresponding to the intermittent power control group in the DPCCH transmitted by the mobile station.

Reference numeral 806 illustrates that a message for state transition is generated in the mobile station and transmitted to the base station through the reverse DPDCH. In this case, the mobile station intermittently transmitting the reverse DPCCH may stop the intermittent transmission and continue the transmission at DC = 1 after transmitting the state transition message through the reverse DPDCH. In addition, the mobile station performing intermittent transmission of the reverse DPCCH may continue intermittent transmission even after transmitting the state transition message, and then stop intermittent transmission and transmit DC = 1 when the state transition occurs.

8D is a diagram illustrating signal transmission of the forward and reverse links according to the suspension of transmission of the reverse DPDCH. In the user data activator without a forward DPDCH, as shown by reference numeral 807, when the transmission of the reverse DPDCH is stopped, the base station and the mobile station transition to a state exceeding a set timer value or exchanging state transition messages. In the embodiment of FIG. 8D, the message for the state transition occurs through the forward DPDCH, but the state transition message may also occur in the reverse DPDCH of the mobile station. In the transmission of the forward DPCCH of FIG. 8D, all TFCI, TPC, and pilot symbols can be transmitted without interruption. Since the TPC bit has a meaningless TPC value determined by measuring the power strength of the pilot symbol position of the intermittent power control group in the reverse DPCCH, the mobile station transmits the base station for the reverse power control in consideration of the interruption pattern of the reverse DPCCH. The meaningless TPC value of one TPC bit is ignored and transmitted at the same intensity as the transmission power transmitted from the previous power control group. In addition, in the transmission of the forward DPCCH of FIG. 8D, only TFCI and TPC may be controlled, and pilot symbols in the forward DPCCH may not be controlled. The interruption pattern at this time is the same as the interruption pattern of the reverse DPCCH of the mobile station. The power control group which intercepts the TPC in the forward DPCCH refers to a TPC generated by measuring a pilot symbol corresponding to the intermittent power control group in the DPCCH transmitted by the mobile station.

Reference numeral 808 illustrates that a message for state transition is generated in the mobile station and transmitted to the base station through the reverse DPDCH. In this case, the mobile station intermittently transmitting the reverse DPCCH may stop the intermittent transmission and continue the transmission at DC = 1 after transmitting the state transition message through the reverse DPDCH. In addition, the mobile station performing intermittent transmission of the reverse DPCCH may continue intermittent transmission even after transmitting the state transition message, and then stop intermittent transmission and transmit DC = 1 when the state transition occurs.

9A is a diagram illustrating signal transmission of the forward and reverse links according to transmission stop of the forward DPDCH. By stopping transmission of the forward DPDCH, the base station and the mobile station make a state transition at a time point exceeding a set timer value or exchanging state transition messages with each other. FIG. 9A illustrates a case in which the forward DPCCH is regulated in the same manner as the interruption pattern of the reverse DPCCH. In the embodiment of FIG. 9A, the state transition message is generated through the forward DPDCH, but the state transition message may also occur through the reverse DPDCH of the mobile station.

FIG. 9B is a diagram illustrating signal transmission of the forward and reverse links according to the transmission stop of the reverse DPDCH. FIG. By stopping transmission of the reverse DPDCH, the base station and the mobile station make a state transition at a time point exceeding the set timer value or exchanging state transition messages with each other. 9B illustrates a case where the forward DPCCH is regulated in the same manner as the interruption pattern of the reverse DPCCH. In the embodiment of FIG. 9B, the state transition message is generated through the forward DPDCH. However, the state transition message may also occur through the reverse DPDCH of the mobile station.

In the above drawings and descriptions, the forward and reverse frame start time points are the same. However, in the actual UTRA system, the reverse frame start time is artificially delayed by 250 microseconds from the forward frame start time. This is to allow the power control time delay to be one slot (1 slot = 0.625ms) in consideration of the propagation delay of the transmission signal when the cell radius is within about 30 km. Therefore, considering the artificial time delay between the forward and reverse frame start time, the DPCCH signal transmission diagram according to the intermittent transmission of the present invention can be represented as shown in Figures 11a, 11b, 11c, 11d, and 11e. The configurations of the base station transmitter and mobile station transmitter that enable such intermittent transmission are shown in Figs. 10A and 10B.

10A is a block diagram of a base station transmitter according to another embodiment of the present invention. The difference from the configuration of the base station transmitter according to an embodiment of the present invention illustrated in FIG. 4A is that the pilot, TFCI, and TPC bits constituting the forward DPCCH differ from each other by the Gated Transmission Controller 141. It can be transmitted intermittently. That is, the Gated Transmission Controller 141 transmits the pilot, TFCI, and TPC bits to the mobile station in the forward DPCCH in the control sustained state in which traffic data is not transmitted to the forward and reverse DPDCHs. In the intermittent transmission, the intermittent transmission controller 141 may be configured as an intermittent transmission unit for the pilot of the n-1 th slot and the n th TFCI and TPC. If the base station performs the intermittent transmission in the control maintaining sub-state using the intermittent transmission controller 141, the intermittent transmission for pilot and TFCI may not be performed in the frame section in which the signaling data is transmitted when the signaling data is transmitted.

In addition, the intermittent transmission controller 141 promises to the mobile station one power control group (or one slot as a whole) including pilot symbols, TFCI, and TPC bits of the forward DPCCH in a control maintaining sub-state in which traffic data is not transmitted on the forward and reverse DPDCHs. It is also possible to intermittently transmit in the power control group (or time slot).

The forward intermittent transmission pattern is the same pattern as the reverse intermittent transmission pattern, but an offset may exist between the two for efficient power control. The above offset is given as a system parameter.

10B illustrates a configuration of a mobile station transmitting apparatus according to another embodiment of the present invention. The configuration difference from the mobile station transmitting apparatus according to the embodiment of the present invention shown in FIG. 4B is that the pilot, TFCI, FBI, and TPC bits constituting the reverse DPCCH are intermittently transmitted in different patterns by the intermittent transmission controller 241. Can be. Gated Transmission Controller 241 transmits pilot, TFCI, FBI, and TPC bits in the reverse DPCCH to the mobile station (or timeslot) in the reverse DPCCH in the control-sustained state where no traffic data is transmitted on the forward and reverse DPDCHs. Intermittent transmission at. If the base station performs the intermittent transmission in the control holding sub-state using the intermittent transmission controller 241, the intermittent transmission for pilot and TFCI may not be performed in a frame section in which signaling data is transmitted when transmitting signaling data.

In addition, the intermittent transmission controller 241 transmits one power control group (or one slot as a whole) to the mobile station including pilot symbols, TFCI, FBI, and TPC bits of the reverse DPCCH in a control maintaining sub-state in which traffic data is not transmitted on the forward and reverse DPDCHs. It is also possible to intermittently transmit in the promised power control group (or timeslot).

The forward intermittent transmission pattern is the same pattern as the reverse intermittent transmission pattern, but an offset may exist between the two for efficient power control. The above offset is given as a system parameter.

11A to 11E and FIGS. 12A to 12E are signal transmission diagrams when intermittent transmission is performed by the base station and the mobile station transmitter as shown in FIGS. 10A and 10B. 11A to 11E illustrate that intermittent transmission is performed when a frame length is 10 msec and 16 power control groups exist in one frame, that is, when one power control group has a length of 0.625 msec. Is showing. 12A to 12E show that an intermittent transmission is performed when the frame length is 10 msec and 15 power control groups exist in one frame, that is, when the length of the power control group is 0.667 msec. Giving.

11A is a signal transmission diagram according to a first embodiment of intermittent transmission of forward and reverse DPCCH of the present invention. As shown in FIG. 11A, the intermittent transmission unit of the forward DPCCH may not be a slot unit. That is, the pilot symbols of the nth slot, the TFCI and the TPC of the n + 1th slot in two adjacent slots are set as intermittent transmission units of the forward DPCCH. For example, when the gating rate is 1/2, the pilot symbol of slot number 0, TFCI and slot TPC of slot number 1 are set as intermittent transmission units of downlink DPCCH. When the gating rate is 1/4, the pilot symbol of slot number 2, TFCI and TPC of slot number 3 are set as intermittent transmission units of downlink DPCCH. When the gating rate is 1/8, the pilot symbol of slot number 6, TFCI and TPC of slot number 7 are set in the intermittent transmission unit of the downlink DPCCH. This is because the n-th pilot symbol may be required to demodulate the n + 1 th TPC according to the demodulation method of the TPC signal at the receiver, so that the unit of the forward DPCCH intermittent transmission is different from the actual slot unit.

If a signaling message occurs during intermittent transmission as described above, it is transmitted through forward or reverse DPDCH. Therefore, the performance at the beginning of the frame is very important. In the present invention, as shown in FIG. 10A, the TPC of the forward DPCCH and the TPC of the reverse DPCCH are positioned in slot number 15 (16th slot, the last slot of one frame), so that the first of the n + 1th frames is located. The slot can be power controlled using the TPC present in the nth last slot. That is, the TPC is placed in the last slot of one frame to control power of the first slot of the next frame.

On the other hand, in the above-described UTRA system, the offset of the start of the forward and reverse frames is fixed to 250 microseconds. However, in the forward and reverse DPCCH intermittent transmission, the offset value may be changed to an arbitrary value in the process of parameter exchange for the DPCCH intermittent transmission by the base station and the terminal during call setup. The offset value is set to an appropriate value in consideration of the transmission delay between the base station and the terminal during the call setup process. That is, when the cell radius is 30km or more, the DPCCH intermittent transmission may have a value larger than the conventional 250 microseconds, and the value may be an experimental value.

11B is a signal transmission diagram according to a second embodiment of intermittent transmission of forward and reverse DPCCH of the present invention. For each case where the gating rate is 1/2, 1/4, or 1/8, the transmission of the downlink DPCCH precedes the transmission of the uplink DPCCH when the intermittent transmission is started. This difference is indicated by 'DL-UL timing' in each case where the gating rates are 1/2, 1/4, or 1/8.

Referring to FIG. 11B, the pilot symbols of the nth slot, the TFCI of the n + 1th slot, and the TPC are set as intermittent transmission units of the forward DPCCH in two adjacent slots. For example, when the gating rate is 1/2, the pilot symbol of slot number 0, TFCI and slot TPC of slot number 1 are set as intermittent transmission units of downlink DPCCH. When the gating rate is 1/4, the pilot symbol of slot number 2, TFCI and TPC of slot number 3 are set as intermittent transmission units of downlink DPCCH. When the gating rate is 1/8, the pilot symbol of slot number 6, TFCI and TPC of slot number 7 are set in the intermittent transmission unit of the downlink DPCCH.

In addition, it can be seen that the TPC for power control of the first slot of the next frame is located in the last slot of one frame. That is, the TPC of the downlink DPCCH and the TPC of the uplink DPCCH are simultaneously located in the slot number 15 (16th slot).

11C is a signal transmission diagram according to a third embodiment of intermittent transmission of forward and reverse DPCCH of the present invention. In the case where the gating rates are 1/2, 1/4, and 1/8, the transmission of the uplink DPCCH is preceded by the transmission of the downlink DPCCH when the intermittent transmission is started.

Referring to FIG. 11C, the pilot symbols of the nth slot, the TFCI and the TPC of the n + 1th slot are set as intermittent transmission units of the forward DPCCH in two adjacent slots. For example, when the gating rate is 1/2, the pilot symbol of slot number 1, TFCI and slot TPC of slot number 2 are set as intermittent transmission units of downlink DPCCH. When the gating rate is 1/4, the pilot symbol of slot number 2, TFCI of slot number 3, and TPC are set as intermittent transmission units of downlink DPCCH. When the gating rate is 1/8, the pilot symbol of slot number 6, the TFCI and slot TPC of slot number 7 are set in the intermittent transmission unit of the downlink DPCCH.

In addition, it can be seen that the TPC for power control of the first slot of the next frame is located in the last slot of one frame. That is, the TPC of the downlink DPCCH and the TPC of the uplink DPCCH are simultaneously located in the slot number 15 (16th slot).

11D is a signal transmission diagram according to a fourth embodiment of intermittent transmission of forward and reverse DPCCH of the present invention. For each case where the gating rate is 1/2, 1/4, or 1/8, when the intermittent transmission starts, the transmission of the downlink DPCCH precedes the transmission of the uplink DPCCH, and the forward and reverse intermittent transmission patterns are the same. The case where the interval is set is shown.

Referring to FIG. 11D, pilot symbols of the nth slot, TFCI, and TPC of the n + 1th slot are set as intermittent transmission units of the forward DPCCH in two adjacent slots. For example, when the gating rate is 1/2, the pilot symbol of slot number 0, TFCI and slot TPC of slot number 1 are set as intermittent transmission units of downlink DPCCH. When the gating rate is 1/4, the pilot symbol of slot number 0, TFCI of slot number 1, and TPC are set as intermittent transmission units of downlink DPCCH. When the gating rate is 1/8, the pilot symbol of slot number 2, TFCI of slot number 3, and TPC are set in an intermittent transmission unit of downlink DPCCH.

In addition, it can be seen that the TPC for power control of the first slot of the next frame is located in the last slot of one frame. That is, the TPC of the downlink DPCCH and the TPC of the uplink DPCCH are simultaneously located in the slot number 15 (16th slot).

11E illustrates a signal transmission diagram according to a fifth embodiment of intermittent transmission of forward and reverse DPCCH of the present invention. For each case where the gating rate is 1/2, 1/4, or 1/8, the transmission of the uplink DPCCH precedes the transmission of the downlink DPCCH when the intermittent transmission starts, and the forward and reverse intermittent transmission patterns The case of setting at the same interval is shown.

Referring to FIG. 11E, the pilot symbols of the nth slot, the TFCI and the TPC of the n + 1th slot are set as intermittent transmission units of the forward DPCCH in two adjacent slots. For example, when the gating rate is 1/2, the pilot symbol of slot number 1, TFCI and slot TPC of slot number 2 are set as intermittent transmission units of downlink DPCCH. When the gating rate is 1/4, the pilot symbol of slot number 2, TFCI of slot number 3, and TPC are set as intermittent transmission units of downlink DPCCH. When the gating rate is 1/8, the pilot symbol of slot number 6, the TFCI and slot TPC of slot number 7 are set in the intermittent transmission unit of the downlink DPCCH.

In addition, it can be seen that the TPC for power control of the first slot of the next frame is located in the last slot of one frame. That is, the TPC of the downlink DPCCH and the TPC of the uplink DPCCH are simultaneously located in the slot number 15 (16th slot).

12A is a signal transmission diagram according to a sixth embodiment of intermittent transmission of forward and reverse DPCCH of the present invention. 12A illustrates a case where a gating rate for intermittent transmission of forward and reverse DPCCH is 1/3, that is, intermittent transmission occurs in a portion corresponding to 1/3 of the power control group in the entire power control group. Figure showing. Intermittent transmission occurs in the portion corresponding to five power control groups among the total 15 power control groups. At this time, the intermittent transmission unit of the forward DPCCH is set not to be a slot unit. That is, the pilot symbols of the nth slot, the TFCI and the TPC of the n + 1th slot in two adjacent slots are set as intermittent transmission units of the forward DPCCH.

<Case 1> of FIG. 12A illustrates a case in which uplink DPCCH transmission is performed in the same manner as downlink DPCCH transmission when the intermittent transmission is started, and the forward and reverse intermittent transmission patterns are set at the same interval. It is. In this case, two adjacent slots, the pilot symbol of slot number 1, TFCI and slot TPC of slot number 2 are set as intermittent transmission units of downlink DPCCH, and the pilot symbol of slot number 4 and TFCI and TPC of slot number 5 are forward (Downlink) DPCCH intermittent transmission unit, slot number 7 pilot symbol, slot number 8 TFCI, TPC is set to downlink DPCCH intermittent transmission unit, slot number 10 pilot symbol and slot number 11 TFCI and TPC are set to intermittent transmission unit of downlink DPCCH, pilot symbol of slot number 13 and TFCI and TPC of slot number 14 are set to intermittent transmission unit of downlink DPCCH.

<Case 2> shows a case in which transmission of an uplink DPCCH precedes transmission of a downlink DPCCH when intermittent transmission is started. In this case, two adjacent slots, the pilot symbol of slot number 0, TFCI and slot TPC of slot number 1 are set as intermittent transmission units of downlink DPCCH, and the pilot symbol of slot number 3 and TFCI and TPC of slot number 4 are forward (Downlink) DPCCH is set to intermittent transmission unit, slot number 6 pilot symbol, TFCI of slot number 7, TPC is set to intermittent transmission unit of downlink DPCCH, pilot symbol of slot number 9 and slot number 10 TFCI and TPC are set to intermittent transmission unit of downlink DPCCH, and pilot symbol of slot number 12 and TFCI and TPC of slot number 13 are set to intermittent transmission unit of downlink DPCCH.

<Case 3> shows a case in which transmission of an uplink DPCCH precedes transmission of a downlink DPCCH when intermittent transmission is started. In this case, two adjacent slots, the pilot symbol of slot number 1, TFCI and slot TPC of slot number 2 are set as intermittent transmission units of downlink DPCCH, and the pilot symbol of slot number 4 and TFCI and TPC of slot number 5 are forward (Downlink) DPCCH intermittent transmission unit, slot number 7 pilot symbol, slot number 8 TFCI, TPC is set to downlink DPCCH intermittent transmission unit, slot number 10 pilot symbol and slot number 11 TFCI and TPC are set to intermittent transmission unit of downlink DPCCH, pilot symbol of slot number 13 and TFCI and TPC of slot number 14 are set to intermittent transmission unit of downlink DPCCH.

<Case 4> shows a case in which transmission of an uplink DPCCH lags behind transmission of a downlink DPCCH when intermittent transmission is started. In this case, two adjacent slots, the pilot symbol of the previous slot number 14, the TFCI of the slot number 0, and the TPC are set as intermittent transmission units of the downlink DPCCH, and the pilot symbol of the slot number 2 and the TFCI and TPC of the slot number 3 Downlink DPCCH is set in intermittent transmission unit, slot number 5 pilot symbol and slot number 6 TFCI, TPC are set in downlink DPCCH intermittent transmission unit, slot number 8 pilot symbol and slot number TFCI and TPC of 9 are set as intermittent transmission units of downlink DPCCH, and pilot symbols of slot number 11, TFCI and TPC of slot number 12 are set as intermittent transmission units of downlink DPCCH.

<Case 5> shows a case in which transmission of an uplink DPCCH lags behind transmission of a downlink DPCCH when intermittent transmission is started. In this case, two adjacent slots, the pilot symbol of slot number 0, TFCI and slot TPC of slot number 1 are set as intermittent transmission units of downlink DPCCH, and the pilot symbol of slot number 3 and TFCI and TPC of slot number 4 are forward (Downlink) DPCCH is set to intermittent transmission unit, slot number 6 pilot symbol, TFCI of slot number 7, TPC is set to intermittent transmission unit of downlink DPCCH, pilot symbol of slot number 9 and slot number 10 TFCI and TPC are set to intermittent transmission unit of downlink DPCCH, and pilot symbol of slot number 12 and TFCI and TPC of slot number 13 are set to intermittent transmission unit of downlink DPCCH.

12B is a signal transmission diagram according to a seventh embodiment for intermittent transmission of forward and reverse DPCCH of the present invention. 12B illustrates a case where a gating rate for intermittent transmission of forward and reverse DPCCH is 1/5, that is, intermittent transmission occurs in a portion corresponding to 1/5 of the power control group in the entire power control group. Figure showing. The transmission occurs in the portion corresponding to three power control groups among the total 15 power control groups. At this time, the intermittent transmission unit of the forward DPCCH is set not to be a slot unit. That is, the pilot symbols of the nth slot, the TFCI and the TPC of the n + 1th slot in two adjacent slots are set as intermittent transmission units of the forward DPCCH.

Referring to FIG. 12B, two adjacent slots, the pilot symbol of slot number 3, TFCI and slot TPC of slot number 4 are set as intermittent transmission units of downlink DPCCH, and the pilot symbol of slot number 8 and slot number 9 TFCI and TPC are set to intermittent transmission unit of downlink DPCCH, pilot symbol of slot number 13 and TFCI and TPC of slot number 14 are set to intermittent transmission unit of downlink DPCCH.

12C is a signal transmission diagram according to an eighth embodiment of intermittent transmission of forward and reverse DPCCH of the present invention.

Referring to FIG. 12C, the intermittent transmission pattern is set not to intermittently transmit the last power control group of the reverse DPCCH in the control holding substate. This intermittent transmission pattern has excellent channel estimation performance because pilot symbols of the last power control group of a frame can be used when performing channel estimation at the base station. It may also increase the time it takes for the base station to process the FBI bits transmitted by the mobile station.

FIG. 12D is a signal transmission diagram according to the ninth embodiment of the intermittent transmission of the forward and reverse DPCCHs of the present invention, and shows an intermittent transmission pattern according to the forward message transmission while performing the intermittent transmission in the control maintaining substate.

Referring to FIG. 12D, during the frame period (DPDCH transmission) in which the forward message is transmitted, the pilot and the TFCI may stop the intermittent transmission, and the TPC may continuously perform the intermittent transmission according to the intermittent pattern.

12E is a signal transmission diagram according to a tenth embodiment for intermittent transmission of forward and reverse DPCCHs of the present invention, and shows an intermittent transmission pattern according to a reverse message transmission while performing an intermittent transmission in a control maintaining substate.

As shown in FIG. 12D and FIG. 12E, the pilot and TFIC stop intermittent transmission during the frame period (DPDCH transmission) in which the reverse message is transmitted, and continuously transmit the FBI and TPC according to the intermittent pattern. You may.

As described above, the present invention minimizes the time spent in the synchronization re-acquisition process at the base station, increases the interference due to the continuous transmission of the reverse DPCCH, reduces the usage time of the mobile station, and transmits the reverse power control bit to the forward link. There is an effect that can increase the capacity by minimizing the increase of interference.

Claims (49)

A mobile station having an intermittent transmission controller for intermittently transmitting a reverse dedicated control channel signal in the same unit as a slot unit in a control holding sub-state; And a base station having an intermittent transmission controller for intermittently transmitting a forward dedicated control channel signal from the power control group promised to the mobile station in the control holding substate. The code division multiple access communication system according to claim 1, wherein the intermittent transmission controller of the mobile station intercepts the signal of the reverse dedicated control channel according to a reverse intermittent transmission pattern which is regularly performed within each frame period. The code division multiple access communication system according to claim 1, wherein the intermittent transmission controller of the mobile station intercepts the signal of the reverse dedicated control channel according to a reverse intermittent transmission pattern irregularly generated within each frame period. The code division multiple access according to claim 2 or 3, wherein the intermittent transmission controller of the base station intercepts the signal of the forward dedicated control channel according to a forward intermittent transmission pattern corresponding to the backward intermittent transmission pattern. Communication system. The code division multiple access communication system according to claim 4, wherein there is an offset between the forward intermittent transmission pattern and the reverse intermittent transmission pattern. 6. The code division multiple access communication system according to claim 5, wherein the forward intermittent transmission pattern intercepts pilot symbols included in each frame, transmission rate information, and power control bits. The method of claim 1, wherein the mobile station, And an intermittent transmission position selector for selecting an intermittent position of the power control group in an irregular pattern in a control holding sub-state so that the intermittent transmission controller intermittently transmits a reverse dedicated control channel signal by the selected pattern. Code division multiple access communication system. The method of claim 7, wherein the intermittent transmission positioner, A code division multiple access communication system, wherein the intermittent position is selected by a serial frame number and a scrambling code of a received signal. The method of claim 8, wherein the intermittent positioner, In the gold code of the scrambling code, at least one consecutive bit separated by an integer chip corresponding to a result of multiplying the serial frame number for each slot corresponding to a set duty cycle by an integer within a predetermined range is selected as the intermittent position. Code division multiple access communication system characterized by. A mobile station having an intermittent transmission controller for intermittently transmitting a reverse dedicated control channel signal in a unit different from the slot unit in a control holding sub-state; And a base station having an intermittent transmission controller for intermittently transmitting a forward dedicated control channel signal from the power control group promised to the mobile station in the control holding substate. 8. The code division multiple access communication system according to claim 7, wherein the intermittent transmission controller of the mobile station intercepts the signal of the reverse dedicated control channel according to a reverse intermittent transmission pattern which is regularly performed within each frame period. 11. The code division multiple access communication system according to claim 10, wherein the intermittent transmission controller of the mobile station intercepts the signal of the reverse dedicated control channel according to a reverse intermittent transmission pattern irregularly generated within each frame period. The code division multiple access according to claim 11 or 12, wherein the intermittent transmission controller of the base station intercepts a signal of the forward dedicated control channel according to a forward intermittent transmission pattern corresponding to the backward intermittent transmission pattern. Communication system. The code division multiple access communication system according to claim 13, wherein there is an offset between the forward intermittent transmission pattern and the reverse intermittent transmission pattern. The code division multiple access communication system according to claim 14, wherein the forward intermittent transmission pattern intercepts a pilot symbol of one slot in each frame, transmission rate information and power control bits of an adjacent next slot. 14. The code division multiple access of claim 13, wherein a power control bit for controlling power of a first slot of a next frame is located in a last slot of each frame of the forward dedicated control channel and the reverse dedicated control channel. Communication system. The code division multiple access communication system according to claim 13, wherein the last slot of each frame of the reverse dedicated control channel is not intermittently transmitted. The code division multiple access communication system according to claim 13, wherein the forward intermittent transmission pattern intercepts only the power control bits during the frame period in which the forward message is transmitted. The code division multiple access communication system according to claim 13, wherein the reverse intermittent transmission pattern intercepts power control bits during a frame period in which a reverse message is transmitted. The method of claim 10, wherein the mobile station, And an intermittent transmission position selector for selecting an intermittent position of the power control group in an irregular pattern in a control holding sub-state so that the intermittent transmission controller intermittently transmits a reverse dedicated control channel signal by the selected pattern. Code division multiple access communication system. The method of claim 20, wherein the intermittent transmission positioner, A code division multiple access communication system, wherein the intermittent position is selected by a serial frame number and a scrambling code of a received signal. The method of claim 21, wherein the intermittent positioner, In the gold code of the scrambling code, at least one consecutive bit separated by an integer chip corresponding to a result of multiplying the serial frame number for each slot corresponding to a set duty cycle by an integer within a predetermined range is selected as the intermittent position. Code division multiple access communication system characterized by. A process of transitioning to a control maintaining sub-state if there is no user data transmitting / receiving for a predetermined period of time in an active sub-state of user data transmitting and receiving user data using a dedicated data channel channel; And transmitting and intermitting a reverse dedicated control channel signal in the same unit as the slot unit or in a different unit in the control holding sub-state. 24. The method of claim 23, wherein the duty cycle of the reverse intermittent transmission pattern for intermitting the reverse dedicated control channel is regularly performed within one frame period. . 24. The method of claim 23, wherein the duty cycle of the reverse intermittent transmission pattern for intermitting the reverse dedicated control channel is irregular within one frame period. . The channel transmission of the terminal apparatus of the code division multiple access communication system according to claim 24 or 25, wherein the signal of the forward dedicated control channel is interrupted according to a forward intermittent transmission pattern corresponding to the backward intermittent transmission pattern. Way. 27. The method of claim 26, wherein there is an offset between the forward intermittent transmission pattern and the reverse intermittent transmission pattern. 28. The terminal apparatus of claim 27, wherein the forward intermittent transmission pattern intercepts a pilot symbol of one slot in each frame, transmission rate information, and power control bits of an adjacent next slot. Channel transmission method. 27. The code division multiple access communication system of claim 26, wherein a power control bit is placed in a last slot of each frame of the forward dedicated control channel and the reverse dedicated control channel to control power of a first slot of a next frame. Channel transmission method of the terminal device. The method of claim 23, wherein the transmitting step, In the control holding sub-state, the intermittent position of the power control group is selected in an irregular pattern to intermittently transmit the reverse dedicated control channel signal according to the selected pattern and transmit the channel of the terminal apparatus of the code division multiple access communication system. Way. The method of claim 30, wherein the selection of the intermittent position, A method for channel transmission in a terminal apparatus of a code division multiple access communication system, wherein the intermittent position is selected by a serial frame number and a scrambling code of a received signal. The method of claim 31, wherein the selection of the intermittent position, In the gold code of the scrambling code, at least one consecutive bit separated by an integer chip corresponding to a result of multiplying the serial frame number for each slot corresponding to a set duty cycle by an integer within a predetermined range is selected as the intermittent position. A channel transmission method of a terminal apparatus of a code division multiple access communication system, characterized by the above-mentioned. A process of transitioning to a control maintaining sub-state if there is no user data transmitting / receiving for a predetermined period of time in an active sub-state of user data transmitting and receiving user data using a dedicated data channel channel; And intermittently transmitting and transmitting a signal of a forward dedicated control channel in the same unit as the slot unit or in a different unit in the control holding sub-state. 34. The channel transmission method of a base station of a code division multiple access communication system according to claim 33, wherein the duty cycle of the reverse intermittent transmission pattern for intermitting the reverse dedicated control channel is regularly performed within one frame period. 34. The channel transmission method of a base station of a code division multiple access communication system according to claim 33, wherein the duty cycle of the reverse intermittent transmission pattern for intermitting the reverse dedicated control channel is irregular within one frame period. 36. The channel transmission method of a base station of a code division multiple access communication system according to claim 34 or 35, wherein the signal of the forward dedicated control channel is interrupted according to a forward intermittent transmission pattern corresponding to the backward intermittent transmission pattern. . The channel transmission method of a base station of a code division multiple access communication system according to claim 36, wherein there is an offset between the forward intermittent transmission pattern and the reverse intermittent transmission pattern. 38. The base station of claim 37, wherein the forward intermittent transmission pattern intercepts pilot symbols of one slot in each frame, transmission rate information, and power control bits of an adjacent next slot. Channel transmission method. 40. The system of claim 36, wherein a power control bit is placed in a last slot of each frame of the forward dedicated control channel and the reverse dedicated control channel to control power of the first slot of a next frame. Channel transmission method of the base station. The method of claim 33, wherein the transmitting step, A method of transmitting a channel of a base station of a code division multiple access communication system by selecting an interruption position of a power control group in an irregular pattern in a control holding state and intermittently transmitting a reverse dedicated control channel signal according to the selected pattern. . The method of claim 40, wherein the selection of the intermittent position, And the intermittent position is selected by a serial frame number and a scrambling code of a received signal. The method of claim 41, wherein the selection of the intermittent position, In the gold code of the scrambling code, at least one consecutive bit separated by an integer chip corresponding to a result of multiplying the serial frame number for each slot corresponding to a set duty cycle by an integer within a predetermined range is selected as the intermittent position. A channel transmission method of a base station of a code division multiple access communication system, characterized in that. In the channel transmission method of a code division multiple access communication system, In the control holding sub-state, the reverse dedicated control channel signal is transmitted in the same unit as the slot unit or in a different unit according to the reverse intermittent transmission pattern, and the forward dedicated control channel signal is transmitted according to the forward intermittent transmission pattern corresponding to the reverse intermittent transmission pattern. And a channel transmission method of a code division multiple access communication system. 44. The method of claim 43, wherein the forward intermittent transmission pattern is the same as the reverse intermittent transmission pattern. 45. The channel transmission method of claim 44, wherein there is an offset between the forward intermittent transmission pattern and the reverse intermittent transmission pattern. 46. The code division multiplexing of claim 45, wherein the backward intermittent transmission pattern determines power control groups having a regular period among power control groups constituting one frame as power control groups for signal transmission. Channel transmission method of a connected communication system. 46. The code division multiplexing of claim 45, wherein the backward intermittent transmission pattern determines power control groups having irregular periods among the power control groups constituting one frame as power control groups for signal transmission. Channel transmission method of a connected communication system. 48. The code division multiple access communication according to claim 46 or 47, wherein the forward intermittent transmission pattern intercepts pilot symbols of one slot in each frame, transmission rate information and power control bits of an adjacent next slot. Channel transmission method of the base station of the system. 49. The system of claim 48, wherein a power control bit is placed in a last slot of each frame of the forward dedicated control channel and the reverse dedicated control channel to control power of a first slot of a next frame. Channel transmission method of the base station.