KR100306285B1 - Apparatus and method for gating transmission in control hold state of cdma communication system - Google Patents

Abstract

The base station and the mobile station of the code division multiple access mobile communication system intermittently transmit and receive in the power control group or the time slot unit in the control holding state to minimize the increase of interference. To this end, in the channel transmission of the code division multiple access communication system, the signal of the reverse pilot channel is intermittently transmitted to reduce the reverse channel interference in the control holding state, and when the reverse dedicated control channel is activated, the normal pilot channel first generated after activation is transmitted. And then transmit the reverse dedicated control channel.

Description

Intermittent transmission method and device for control division of code division multiple access communication system {APPARATUS AND METHOD FOR GATING TRANSMISSION IN CONTROL HOLD STATE OF CDMA COMMUNICATION SYSTEM}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication apparatus and method for a code division multiple access type mobile communication system, and more particularly, to an intermittent transmission apparatus and method in a control holding state.

Conventional code division multiple access (hereinafter referred to as CDMA) mobile communication systems have provided voice-oriented services, but gradually developed into the IMT-2000 standard, which 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 where a state in which data is not transmitted is frequently generated. Therefore, in the next generation mobile communication system, a method of allocating a dedicated channel is used only at the time of data transmission in a data communication service. In other words, in consideration of limited radio resources, base station capacity, and power consumption of the mobile terminal, a dedicated traffic channel and a control channel are connected only while data is actually transmitted, and data transmission is performed for a predetermined time. While not being made, the dedicated channel is released. While the dedicated channel is released, it focuses on increasing the use efficiency of radio resources by performing communication through a common channel.

In the voice-oriented CDMA mobile communication system, a channel for releasing data transmission is released, and when data transmission is required again, a channel is requested and connected to transmit 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, for example, are often intermittent. Therefore, after transmitting some packet data, there is a pause period in which no data is transmitted until the next packet data is transmitted. In the period in which data transmission is interrupted as described above, the mobile communication system must release the channel used or maintain the connection state of the channel. However, if the channel is released as described above, it takes a lot of time to reconnect, so that the service cannot be provided, and if the channel is kept as it is, the channel is wasted.

In order to solve this problem, the base station and the terminal have a dedicated control channel to transmit and receive control signals related to the call channel in a period in which data transmission and reception occur, and release the call channel in a section in which data communication is interrupted and perform exclusive control. A method of maintaining only the channel has been proposed. As described above, when only the dedicated control channel is connected in a section in which data transmission is suspended, the mobile communication system can prevent waste of the channel and can quickly access the data to be transmitted again. Such a state is called a control hold state.

As described above, the mobile communication system needs various states depending on the channel allocation status and the presence or absence of state information. 10 illustrates a state transition of a mobile communication system for packet service.

As shown in FIG. 10, the packet service states shown in FIG. 10 include a packet null state, an initialization state, an data transfer state, a control hold state, and a standby state. (Suspended State), Dormant State (Dormant State), Reconnect State (Reconnect State) and the like. In the control holding state, the operating state, and the standby state, a service option is connected, and the remaining states are not connected.

In addition, the control hold state may be divided into two sub-states as shown in FIG. 11. The two substates of the control holding state may be a normal substate and a slotted substate. In the normal state, there is no data to be transmitted through a communication channel, and only a control signal is transmitted and received through a dedicated control channel. After the set time has elapsed in a state in which the steady state state lasts for a predetermined period of time (a state in which only a control signal is continuously transmitted and received in a state in which data transmission and reception is not occurring for a long period of time), the state transitions to the time division state. In the time division state, the dedicated control channel remains connected but does not transmit a control signal through the dedicated control channel. In this case, the terminal does not generate a transmission signal, thereby reducing power consumption. However, in the time division state, since the base station and the terminal do not exchange control signals with each other, a resynchronization process is required between the base station and the terminal in order to transition to the normal state again when data communication is required.

A configuration of a base station and a terminal of a conventional code division multiple access communication system performing the above operation is as follows.

1A shows the configuration of a conventional base station transmitter in a code division multiple access communication system.

First, the channels of the forward link of the base station are described. A pilot channel (Pilot CHannel), which is a reference channel for synchronization acquisition and channel estimation, and a control message are communicated with all mobile stations located in a cell managed by the base station. Forward Common Control CHannel (F-CCCH), Forward Dedicated Control Channel (F-DCCH) for communicating control messages with a specific mobile station located within a cell, and traffic with a specific mobile station Forward Dedicated Traffic CHannel (F-DTCH) for communicating data (voice, data, etc.). The forward dedicated control channel F-CCCH includes a time division forward dedicated control channel (Sharable F-DCCH) in control message communication with a particular mobile station by time slot multiplexing. The forward dedicated traffic channel F-DTCH may be composed of a forward basic channel (F-FCH) and a forward supplementary channel (F-SCH).

Demuxes 120, 122, 124, and 126 distribute information of corresponding channels through channel encoding and interleaving into I and Q channels. Here, the demultiplexers 120, 122, 124, and 126 may use a serial or parallel converter. In this case, it is assumed that the signals input to the demultiplexers 120, 122, 124, and 126 are signal mapped signals. The mixers 110, 130, 131, 132, 133, 134, 135, 136, and 137 multiply the signals output from the corresponding demultiplexers with the orthogonal codes of the corresponding channels for orthogonal spreading, respectively. Wherein the mixer 110, 130-137 performs the function of an orthogonal modulator. The signals orthogonally spread in the mixers 130-137 are each adjusted for gain relative to the forward pilot channel via corresponding amplifiers 140-147.

The signals output from the amplifiers 140 and 147 and the mixer 110 are input to the adders 150 and 152 for the I and Q channels, respectively, and added. At this time, since the signals applied to the adders 150 and 152 are channels separated by the orthogonal codes, the signals of the respective channels are orthogonal. The outputs of the summers 150 and 152 are applied to the complex multiplier 160 and multiplied by the PN sequence allocated for each base station to spread the spectrum.

The complex spreader 160 is divided into I and Q channels and applied to the filters 170 and 171, respectively, to generate a signal with limited bandwidth. The outputs of the filters 170 and 171 are applied to the amplifiers 172 and 173 and amplified to the size required for transmission. Mixers 174 and 175 multiply the output of the amplifiers 172 and 173 by the carrier to upconvert the signal to a high frequency band. The summer 180 sums and outputs the signals of the I and Q channels.

Fig. 1B shows the configuration of a conventional mobile station transmitter in a code division multiple access communication system.

Looking at the channels of the reverse link of the mobile station, a pilot / PCB multiplexed with a pilot signal serving as a reference channel for synchronization acquisition and channel estimation and a power control bit (PCB) for forward power control. A channel (pilot / PCB channel), a Reverse Dedicated Control Channel (R-DCCH) for communicating a control message exclusively with a base station managing the cell in which the mobile station is located, and traffic data with the base station. There are Reverse Dedicated Traffic Channels (R-DTCHs) that communicate exclusively. The reverse dedicated traffic channel R-DTCH may be composed of a reverse basic channel (R-FCH) and a reverse supplemental channel (R-SCH).

The multiplexer 210 multiplexes a power control bit for controlling the signal of the reverse pilot channel and the power of the forward link. The mixers 220, 230, 240, 250, and 260 generate the orthogonal spreading signals of each channel by multiplying each channel transmission signal of the corresponding channel-linked and interleaved reverse link with the orthogonal code of the corresponding channel, respectively. Therefore, the mixers 220, 230, 240, 250, and 260 become orthogonal modulators. The outputs of mixers 220, 230, 240, 250, and 260 are applied to amplifiers 222, 242, 252 and 262, respectively, to adjust the gain relative to the reverse pilot / PCB channel.

The outputs of the amplifiers 222, 242, 252, and 262 are applied to summers 224 and 254, respectively, to which I-channel and Q-channel signals are added. At this time, since the signals applied to the adders 224 and 254 are channels separated by the orthogonal codes, the signals of the respective channels are orthogonal. The outputs of summers 224 and 254 are applied to complex spreader 160 and multiplied by a spreading code assigned for each mobile station to spread. The spreading code allocated to each mobile station is a signal in which the PN sequence of the base station managing the cell to which the mobile station belongs and the unique long code of the mobile station are mixed. The output of the complex spreader 160 passes through the filters 170 and 171 for each I channel and Q channel to generate a signal with limited bandwidth. The outputs of the filters 170 and 171 are applied to the amplifiers 172 and 173 and amplified to the size required for transmission. Mixers 174 and 175 multiply the signals output from the amplifiers 172 and 173 by a carrier wave to upconvert the transmission signal to a high frequency band. The summer 180 adds and outputs the signals of the output I and Q channels in the mixers 174 and 175.

The control maintaining state of the code division multiple access communication system is a state in which a control signal is communicated through a dedicated control channel while the dedicated traffic channel is released. The following description focuses on the operation of the reverse pilot / PCB channel in the control holding state. In the following description, a description will be made of a case where the control holding state is divided into a normal part state and a time division part state. However, even when the control holding state is not divided into a normal state and a time division state, the following operations are performed in the same manner.

First, in order to avoid the base station performing the resynchronization acquisition process when transitioning to the data transmission state in the control holding state [/] (normal negative state) of the conventional code division multiple access communication system, the mobile station continuously performs reverse pilot / Transmit the signal of the PCB channel. When the reverse pilot / PCB channel transitions to the control hold state / time division substate, transmission is stopped, but the interference of the reverse link is increased by transmitting a signal of the reverse pilot / PCB channel until the transition to the time division substate. Increasing reverse link interference reduces the capacity of the reverse link. And since unnecessary control signals are transmitted continuously, power consumption is increased.

Secondly, the operation of creating a reverse dedicated control channel when a reverse dedicated MAC channel (dmch: medium access control) is generated in a conventional control maintenance state will be described. Logical channels of the dedicated control channel may be dmch, dsch, dtch, etc., where the frame size of the dsch and dtch has 20 msec, and the frame size of the dmch has 5 msec. Therefore, the R-DCCH may be transmitted within a maximum of 5 msec after the dmch is generated, and thus, the R-DCCH may be transmitted only at an integer multiple of 5 msec. Therefore, since the number of cases in which the dmch is transmitted is small, the base station needs to determine the existence of the R-DCCH only at four places in one frame. However, after a dmch generation, a delay of up to 5 msec occurs until R-DCCH transmission, and the dmch has a transmission delay of 2.5 msec on average.

Third, when the reverse power control bit is disposed at a fixed position on the forward channel when the R-DCCH is not activated in the conventional control hold state, power control is performed at the same time interval in both the forward and reverse directions. In addition, when the reverse power control bit is disposed at a variable position in the power control group on the forward channel when the R-DCCH is not activated in the conventional control hold state, power control is performed at the same time interval in both the forward and reverse directions. However, the position of the reverse power control bits on the forward channel is not uniform.

As described above, the continuous transmission of the reverse pilot / PCB channel in the control hold state (normal negative state) is advantageous in that it can avoid the synchronous re-acquisition process at the base station, but increases interference on the reverse link. Reduces the reverse capacity. In addition, there is a problem of increasing the interference and reducing the capacity of the forward link by sending a continuous reverse power control bit in the forward link. As described above, there is a problem in that power consumption increases due to continuous transmission.

Therefore, in the code division multiple access communication system, the unnecessary control signal transmission is reduced in the control holding state, thereby minimizing the time required for the synchronous reacquisition process, and increasing the interference by the transmission of the reverse pilot / PCB channel. It is desirable to minimize the increase in interference caused by the transmission of reverse power control bits to the forward link.

An object of the present invention is to provide an apparatus and method for reducing unnecessary transmission of control signals in a control holding state of a code division multiple access communication system.

Another object of the present invention is to provide an apparatus and method capable of performing intermittent transmission by intermittently transmitting a control signal in a control holding state of a code division multiple access communication system.

It is still another object of the present invention to provide an apparatus and method for receiving a control signal transmitted intermittently in a control holding state of a code division multiple access communication system.

Another object of the present invention is to provide an apparatus and method for intermittently transmitting a control signal in units of a power control group in a control holding state of a code division multiple access communication system.

Another object of the present invention is to provide an apparatus and a method for intermittently transmitting a control signal in a time slot unit in a control holding state of a code division multiple access communication system.

Another object of the present invention is to provide an apparatus and method for intermittently transmitting a control signal in units of frames in a control holding state of a code division multiple access communication system.

Still another object of the present invention is to control the power when the reverse power control bit is fixedly positioned when the reverse dedicated control channel is activated in the control maintaining state of a code division multiple access communication system for intermittently transmitting control signals. An apparatus and method are provided.

Another object of the present invention is to reversely control the reverse direction power control bit within the power control group when the reverse dedicated control channel is activated in the control holding state of the code division multiple access communication system for intermittently transmitting control signals. It is an object of the present invention to provide an apparatus and method capable of controlling power at a time.

It is still another object of the present invention to provide an apparatus and method for transmitting a reverse power control command for a plurality of reverse channels in a control holding state of a code division multiple access communication system for intermittently transmitting a control signal.

It is still another object of the present invention to generate a reverse transmission signal so that time diversity can be obtained in transmission of traffic data using a reverse control channel in a control maintaining state of a code division multiple access communication system for intermittently transmitting a control signal. The present invention provides an apparatus and method.

It is still another object of the present invention to generate a transmission signal capable of obtaining time diversity when transmitting traffic data using a forward dedicated control channel in a control maintaining state of a code division multiple access communication system for intermittently transmitting a control signal. The present invention provides an apparatus and method.

It is another object of the present invention to provide an apparatus and method for intermittent transmission when there is no user data to be transmitted.

Another object of the present invention is to provide an apparatus and method for intermittently transmitting a signal necessary to maintain a channel to maintain a state of a channel with a minimum signal in a section in which there is no transmission / reception data in a code division multiple access method mobile communication system. have.

Fig. 1A is a diagram showing the configuration of a base station transmitter in a conventional code division multiple access communication system.

Fig. 1B is a diagram showing the configuration of a mobile station transmitter in a conventional code division multiple access communication system.

2A is a diagram showing the configuration of a base station transmitter in a code division multiple access communication system according to an embodiment of the present invention.

2B is a diagram showing the configuration of a mobile station transmitting apparatus of a code division multiple access communication system according to an embodiment of the present invention;

3 is a diagram illustrating a reverse pilot / PCB channel transmission operation in a control holding state in a code division multiple access communication system according to an embodiment of the present invention;

FIG. 4A is a diagram illustrating a reverse pilot / PCB channel transmission operation by activating a reverse dedicated control channel in a control holding state according to an embodiment of the present invention. (The reverse dedicated control channel may exist in power control group units, and pilot / PCB may be used. If the channel transmits intermittently at regular time intervals)

4B is a diagram illustrating a reverse pilot / PCB channel transmission operation by activating a reverse dedicated control channel in a control holding state according to an embodiment of the present invention. (The reverse dedicated control channel may exist in dedicated control channel frame units. / PCB channel transmits intermittently at regular time intervals)

FIG. 4C is a diagram illustrating a reverse pilot / PCB channel transmission operation by activating a reverse dedicated control channel in a control holding state according to an embodiment of the present invention (the reverse dedicated control channel may exist in units of a power control group, and a pilot / PCB If the channel transmits intermittently at irregular time intervals)

4D is a diagram illustrating a reverse pilot / PCB channel transmission operation by activating a reverse dedicated control channel in a control holding state according to an embodiment of the present invention (the reverse dedicated control channel may exist in units of a power control group, and a pilot / PCB When the channel intermittently transmits at regular time intervals from multiple positions in one frame in integer multiples of the power control group)

4E is a diagram illustrating a reverse pilot / PCB channel transmission operation by activating a reverse dedicated control channel in a control holding state according to an embodiment of the present invention (the reverse dedicated control channel may exist in units of a power control group, and a pilot / PCB When the channel transmits intermittently at regular time intervals from one position in one frame in integer multiples of the power control group)

4F is a diagram illustrating a reverse pilot / PCB channel transmission operation by activating a reverse dedicated control channel in a control holding state according to an embodiment of the present invention. (The reverse dedicated control channel may exist in units of a power control group, and a pilot / PCB When the channel intermittently transmits at regular time intervals and transmits one more time slot of the pilot / PCB channel immediately after the end of reverse dedicated control channel transmission)

4G is a diagram illustrating a reverse pilot / PCB channel transmission operation by activating a reverse dedicated control channel in a control holding state according to an embodiment of the present invention (the reverse dedicated control channel may exist in units of a power control group, and a pilot / PCB When the channel transmits intermittently at regular time intervals, and continuously transmits the pilot / PCB channel for the remaining frame period after completion of the reverse dedicated control channel transmission)

4H is a diagram illustrating a reverse pilot / PCB channel transmission signal due to a reverse dedicated control channel activation in a conventional method and a control holding state according to an exemplary embodiment of the present invention. (When the pilot / PCB channel intermittently transmits at regular time intervals. )

4I is a diagram illustrating a reverse pilot / PCB channel transmission signal caused by a reverse dedicated control channel activation in a control holding state according to an embodiment of the present invention. (If the pilot / PCB channel is intermittently transmitted at irregular time intervals).

4J is a diagram illustrating a reverse pilot / PCB channel transmission signal caused by a reverse dedicated control channel activation in a control holding state according to an embodiment of the present invention. (The pilot / PCB channel is an integer multiple of a time slot. Intermittent transmission at regular time intervals)

4K is a diagram illustrating a reverse pilot / PCB channel transmission signal caused by a reverse dedicated control channel activation in a control holding state according to an embodiment of the present invention. (The pilot / PCB channel is a rule in one frame within one frame of time slots. For intermittent transmission at regular time intervals)

FIG. 5A is a diagram illustrating a power control configuration for a reverse pilot / PCB channel in a control holding state according to an embodiment of the present invention (regular / intermittent transmission, duty cycle = 1/1 and 1/2)

FIG. 5B is a diagram illustrating a power control configuration for the reverse pilot / PCB channel in the control holding state according to an embodiment of the present invention (regular / intermittent transmission, duty cycle = 1/4 and 1/8)

FIG. 5C is a diagram illustrating a power control configuration for a reverse pilot / PCB channel in a control holding state according to an embodiment of the present invention (irregular / intermittent transmission, duty cycle = 1/1 and 1/2)

FIG. 5D is a diagram illustrating a power control configuration for the reverse pilot / PCB channel in the control holding state according to an embodiment of the present invention (irregular / intermittent transmission, duty cycle = 1/4 and 1/8)

FIG. 6A is a diagram illustrating a power control configuration for a reverse pilot / PCB channel when a reverse dedicated control channel is active in a control holding state according to an embodiment of the present invention (regular / intermittent transmission, offset <0, duty cycle = 1/1 and 1/2)

6B is a diagram illustrating a power control configuration for a reverse pilot / PCB channel when a reverse dedicated control channel is active in a control holding state according to an embodiment of the present invention (regular / intermittent transmission, offset <0, duty cycle = 1 / 4 and 1/8)

6C is a diagram illustrating a power control configuration for a reverse pilot / PCB channel when a reverse dedicated control channel is active in a control holding state according to an embodiment of the present invention (regular / intermittent transmission, offset> 0, duty cycle = 1 / 1 and 1/2)

6D is a diagram illustrating a power control configuration for a reverse pilot / PCB channel when a reverse dedicated control channel is active in a control holding state according to an embodiment of the present invention (regular / intermittent transmission, offset> 0, duty cycle = 1 / 4 and 1/8)

6E is a power control configuration diagram for a reverse pilot / PCB channel when a reverse dedicated control channel is active in a control holding state according to an embodiment of the present invention. (Regular / intermittent transmission, offset <0, duty cycle = 1/1 and 1/2)

FIG. 6F is a power control configuration diagram for a reverse pilot / PCB channel when a reverse dedicated control channel is active in a control holding state according to an embodiment of the present invention. (Regular / intermittent transmission, offset <0, duty cycle = 1/4 and 1/8)

6G is a power control diagram for the reverse pilot / PCB channel when the reverse dedicated control channel is active in the control hold state according to an embodiment of the present invention. (Regular / intermittent transmission, offset> 0, duty cycle = 1/1 and 1/2)

6H is a power control diagram for a reverse pilot / PCB channel when a reverse dedicated control channel is active in a control holding state according to an embodiment of the present invention. (Regular / intermittent transmission, offset> 0, duty cycle = 1/4 and 1/8)

7A is a diagram illustrating configuration of reverse power control for a plurality of reverse dedicated channels by a forward time division dedicated control channel in a control holding frame according to an exemplary embodiment of the present invention.

FIG. 7B is a diagram illustrating an embodiment of a reverse power control command transmission signal for a plurality of reverse channels of FIG. 7A; FIG.

FIG. 7C is a diagram illustrating another embodiment of a reverse power control command transmission signal for a plurality of reverse channels of FIG. 7A.

FIG. 8A is a diagram illustrating an embodiment of a reverse transmission signal for obtaining time diversity in transmission of traffic data using a reverse dedicated control channel in a control holding state according to an embodiment of the present invention (position of reverse power control bit) Is regular)

8B is a diagram illustrating an embodiment of a reverse transmission signal for obtaining time diversity in transmission of traffic data using a reverse dedicated control channel in a control holding state according to an embodiment of the present invention (position of reverse power control bit) Is irregular)

9A is a diagram illustrating an embodiment of a continuous transmission signal having a regular time interval for obtaining time diversity in the transmission of traffic data using a forward dedicated control channel in a control holding state according to an embodiment of the present invention.

9B is a diagram illustrating another embodiment of a discontinuous transmission signal having a regular time interval for obtaining time diversity in transmitting traffic data using a forward dedicated control channel in a control holding state according to an embodiment of the present invention.

9C is a diagram illustrating an embodiment of a discontinuous transmission signal having an irregular time interval for obtaining time diversity in transmission of traffic data using a forward dedicated control channel in a control holding state according to an exemplary embodiment of the present invention.

FIG. 10 is a diagram illustrating a state transition for a packet data service in a code division multiple access communication system.

FIG. 11 is a diagram showing a transition between sub-states in a control holding state in a code division multiple access communication system.

An embodiment of the present invention relates to an apparatus and method for intermittently transmitting a control signal in a state where there is no user data to be transmitted in a code division multiple access communication system. In this case, the control signal includes a power control bit transmitted on a forward channel and a pilot and power control command (PCB) on a reverse link. Therefore, the embodiment of the present invention transmits the control signal intermittently in the control holding state, and minimizes the time spent in reacquiring the synchronization caused by this, and increases the interference by the transmission of the reverse pilot / PCB channel. Minimize the increase in interference by transmission of reverse power control bits to the forward link.

In the description of the specification according to the embodiment of the present invention, the components that perform the same function are given the same reference numerals, and the descriptions of the components described in the description of each drawing are omitted except where necessary. . In addition, 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.

In the following description, specific details such as the length of frames transmitted on each channel, the number and length of power control groups, etc. are shown to provide a more general understanding of the present invention. It will be apparent to those skilled in the art that the present invention may be readily practiced without these specific details and by modifications thereof. In the embodiment of the present invention, the synchronous cdma2000 is described as an example, so that the frame length is 20 msec, and since there are 16 power control groups in one frame, the length of the power control group is 1.25 msec, and the frame length of the dedicated control channel is The case of 5 msec is demonstrated. The present invention can be used in a state in which there is no data to be transmitted in UMTS, which is not only a synchronous cdma2000 but also an asynchronous IMT2000 system. In UMTS, not only a power control bit of a dedicated physical common control channel (DPCCCH) that transmits a control signal, but also a pilot signal and a transport format combination indicator (TFCI) may be transmitted.

As described above, an embodiment of the present invention relates to an apparatus and method for intermittently transmitting a control signal in a control holding state of a code division multiple access mobile communication system. However, this is necessary to embody the main contents according to an embodiment of the present invention, and the present invention is intermittently performed even when information is intermittently performed to prevent an increase in interference on a link generated by transmitting unnecessary control signals and to reduce power consumption. This should apply.

According to an embodiment of the present invention, a transmitter configuration diagram of a base station and a mobile station intermittently transmitting a control signal in a control holding state is as follows.

2A illustrates a configuration of a base station transmitter according to an embodiment of the present invention. In the configuration of FIG. 2A, the channel encoders F-CCCH, F-DCCH, and F-DTCH are omitted from the configuration of the channel encoder and the interleaver, respectively.

Referring to FIG. 2A, the configuration of the pilot channel, the F-CCCH, and the F-DTCH is the same as that of FIG. 1A.

An intermittent transmission controller 190 generates an intermittent control signal for intermittent transmission of a dedicated control channel in a controlled holding state. The intermittent transmission controller 190 has an interruption rate and an interruption pattern for intermittent transmission in a control holding state, and generates a control signal for intermittently transmitting a transmission signal of a dedicated control channel at a time point agreed with the terminal. Here, the dedicated control channel includes an F-DCCH and a sharable F-DCCH.

The demux 122 distributes the control signal of the F-DCCH channel, which has undergone channel encoding and interleaving, to the I channel and the Q channel. Here, the demultiplexer 122 may use a serial-to-parallel converter. Here, it is assumed that the demultiplexer 122 has a signal mapping function or inputs a signal converted signal. Mixers 132 and 133 multiply the signals output from the demultiplexer 122 with the orthogonal codes W # y of the corresponding F-DCCHs for orthogonal spreading, respectively. Wherein the mixers 132 and 133 perform the function of an orthogonal modulator. The orthogonal spread signals from mixers 132 and 133 are adjusted to their magnitude relative to the forward pilot channel via corresponding amplifiers 142 and 143, respectively. The switches 192 and 193 are connected between the output terminals of the amplifiers 142 and 143 and the input terminals of the summers 150 and 152, and are controlled by the intermittent control signal of the intermittent transmission controller 190. Accordingly, the switches 192 and 193 are switched by the intermittent control signal of the intermittent transmission controller 190 to intermittently transmit the transmission signal of the dedicated control channel. Here, instead of using the switches 192 and 193, the same intermittent transmission can be achieved by controlling the amplification degree of the amplifiers 142 and 143. That is, when the gain control signals applied to the amplifiers 142 and 143 are set to 0, an operation of stopping transmission of the dedicated control channel can be performed.

The configuration of the sharable F-DCCH is also the same as that of the F-DCCH.

The rest of the configuration other than that of the dedicated control channel transmitter having the above configuration has the same configuration as that of FIG. 1A.

2A illustrates that the base station transmitter according to the embodiment of the present invention has outputs of the amplifiers 142, 143, 144, and 145 for the forward dedicated control channel to the intermittent transmission controller 190 and the interrupters 192, 193, 194, and 195. Transmission is interrupted by this. That is, the Gated Transmission Controller 190 transmits the reverse power control bits only in the power control group or time slots promised to the mobile station when the forward and reverse dedicated control channels are not activated in the control hold state where there is no user data to transmit or receive. Let's do it. When the reverse dedicated control channel is not activated in the control holding state (in a period without a transmission signal), only the reverse power control bit in the forward power control group selected by the same pattern as the intermittent transmission pattern of the reverse pilot / PCB channel is transmitted. do. The reverse intermittent transmission pattern and the forward intermittent transmission pattern are the same pattern, but an offset exists between the two for efficient power control. The above offset can be given as a system parameter.

2B illustrates a configuration of a mobile station transmitter according to an embodiment of the present invention. In the channel transmitter configuration such as R-SCH, R-DCCH and R-FCH of the mobile station transmitter as shown in FIG. 2B, the configuration of the channel encoder and the interleaver is omitted. Therefore, the signals input to the respective channel transmitters are signals that are received by channel encoding and interleaving.

An intermittent transmission controller 290 generates an intermittent control signal for intermittent transmission of the reverse / pilot channel in a controlled hold state. The intermittent transmission controller 290 has an intermittent rate and an intermittent pattern for intermittent transmission in a control holding state, and generates a control signal for intermittently transmitting a transmission signal of a reverse pilot / PCB channel at an agreed time with the base station.

The multiplexer 210 multiplexes a power control bit for controlling the signal of the reverse pilot channel and the power of the forward link. The mixer 230 multiplies the signal of the pilot / PCB channel of the reverse link by the orthogonal code assigned to the pilot / PCB channel to generate an orthogonally spread signal. The switch 232 is connected between the output terminal of the mixer 230 and the input terminal of the summer 224 and is controlled to be controlled by an intermittent control signal output from the intermittent transmission controller 290. Therefore, the switch 232 is switched by the intermittent control signal of the intermittent transmission controller 290 so that the pilot / PCB transmission signal is intermittently transmitted. Here, instead of using the switch 232, an amplifier may be connected to the output terminal of the reverse pilot / PCB channel and the same intermittent transmission may be achieved by controlling the amplification degree of the amplifier. That is, when the gain control signal applied to the amplifier is 0, the operation of stopping the transmission of the reverse pilot / PCB channel can be performed.

In addition to the configuration of the reverse pilot / PCB channel, the configuration of the remaining channel transmitters is the same as that of the mobile station transmitter of FIG. 1B.

The transmitter of the mobile station having the configuration as shown in FIG. 2B includes an intermittent transmission controller 290 for controlling a switch 232 for intermittent transmission of the reverse pilot / PCB channel. Since the transmission of the reverse pilot / PCB channel is essential for synchronous detection, there can be no transmission of other reverse channels in the period in which the transmission of the pilot / PCB channel is stopped.

The structure of a signal intermittently transmitted by the transmitters of the base station and the mobile station according to the embodiment of the present invention having the configuration as shown in FIG. 2A and FIG. 2B in the control holding state is as follows. In the following descriptions, the reverse pilot / PCB channel will be described.

3 is a diagram illustrating a state in which a mobile station intermittently transmits a signal of a reverse pilot / PCB channel in a control maintaining state of a code division multiple access communication system according to an exemplary embodiment of the present invention. In FIG. 3, the reverse pilot / PCB channel intermittently transmits a signal of the pilot / PCB channel by an intermittent control signal according to a regular / intermittent transmission pattern of the intermittent transmission controller 290.

In FIG. 3, reference numeral 300 shows a transmission signal of a reverse pilot / PCB channel when the reverse dedicated control channel is not activated when the interruption rate is 1 in the control holding state. In order to avoid the resynchronization acquisition process at the base station, the mobile station continuously transmits the reverse pilot / PCB channel in the control hold state. This increases the reverse link interference, which increases the reverse link capacity.

In FIG. 3, reference numeral 320 denotes a power in a case in which a control rate (Gating rate (Duty Cycle, hereinafter referred to as DC)) is 1/2 (only half of the entire power control group in one frame is transmitted). The transmission of the control group regularly is shown. 322 shows transmission regularly in one power control group per four power control groups in the case of DC = 1/4 (only 1/4 transmission in the entire power control group in one frame) in the control hold state. 324 shows transmission regularly in one power control group per eight power control groups when DC = 1/8 (only one eighth transmission in the entire power control group in one frame) in the control hold state.

Reference numerals 340, 342, and 344 of FIG. 3 illustrate a signal transmission diagram according to an irregular / intermittent transmission pattern of a reverse pilot / PCB channel in a control holding state according to another embodiment of the present invention.

In FIG. 3, reference numeral 340 selects and transmits any one power group from two power control groups in the case of DC = 1/2 (only 1/2 of all power control groups in one frame) in the control holding state. It is shown to do. Reference numeral 342 shows transmission from any one power control group per four power control groups in the case of DC = 1/4 (only 1/4 of the total power control group in one frame) in the control hold state. Reference numeral 344 shows transmission from any one power control group per eight power control groups when DC = 1/8 (only 1/8 of the entire power control group in one frame) in the control hold state.

Reference numerals 360, 362, and 364 of FIG. 3 illustrate signal transmission diagrams according to a regular / intermittent transmission pattern of a reverse pilot / PCB channel in a control holding state according to another embodiment of the present invention.

In FIG. 3, reference numeral 360 denotes two consecutive powers including the same number of power control groups in the case of DC = 1/2 (only 1/2 of the total power control groups in one frame) in the control holding state. The transmission of control groups at regular positions is shown. Reference numeral 362 shows the transmission of two consecutive power control groups at a regular position when DC = 1/4 (only 1/4 of the entire power control group in one frame) in the control hold state. . Reference numeral 364 shows the transmission of two consecutive power control groups at regular positions when DC = 1/8 (only 1/8 of all power control groups in one frame) in the control holding state. . As the transmission rate decreases to 1/2, 1/4, and 1/8, the number of power control groups included in the continuous power control group decreases by half.

Reference numerals 380, 382, and 384 of FIG. 3 illustrate a signal transmission diagram according to a predetermined regular / intermittent transmission pattern of a reverse pilot / PCB channel in a control holding state according to another embodiment of the present invention.

Reference numeral 380 shows the transmission of half of the entire power control group continuously in the second half of the frame when DC = 1/2 (only half of the entire power control group in one frame) in the control holding state. have. Reference numeral 382 denotes that when DC = 1/4 (only 1/4 of the total power control group in one frame is transmitted) in the control holding state, 1/4 of the entire power control group is continuously started from the 3/4 point of the frame. It shows the transmission. Reference numeral 384 denotes that 1/8 of the entire power control group continues from 7/8 of the frame when DC = 1/8 (only 1/8 of all power control groups in one frame are transmitted) in the control holding state. It shows the transmission. As the transmission rate decreases to 1/2, 1/4, and 1/8, the number of power control groups included in the continuous power control group decreases by half.

The intermittent transmission of the reverse pilot / PCB channel as shown in FIG. 3 is performed by the control of the intermittent transmission controller 290. In this case, the interruption rate and the intermittent pattern used for the intermittent transmission must be previously agreed with the intermittent transmission controller 190 of the base station. . 3 illustrates an example in which one frame includes 16 power control groups or slots. In the case of FIG. 3, the intermittent transmission controller 290 may perform intermittent transmission at four types of intermittent rates, and the intermittent rates are 1, 1/2, 1/4, and 1/8. In addition, the intermittent transmission controller 290 may perform intermittent transmission in a regular or irregular interrupted pattern. Referring to the case of 320, 340, 360, and 380 having the 1/2 interruption rate in FIG. 3, the shape of the interruption pattern may be variously implemented.

4A to 4G illustrate an operation of transmitting a message of a dedicated control channel generated by the mobile station when a message of a reverse dedicated control channel is generated while performing an intermittent transmission with the interruption rate and the interruption pattern as shown in FIG. 3. It is a figure for following.

Referring to FIG. 4A, 400-a, 420a, 422a, and 424a may be transmitted when an R-DCCH is transmitted when the mobile station intermittently transmits at an interruption rate and an interruption pattern such as 300, 320, 322, and 324 of FIG. It is a figure which shows the possible position. That is, when the dedicated MAC logical channel dmch is generated while the mobile station performs intermittent transmission as shown in 300, 320, 322, and 324 of FIG. 3, the reverse pilot / channel of 400a, 420a, 422a, and 424a of FIG. The dmch is transmitted to the R-DCCH which is a physical channel at the location.

In FIG. 4A, 400a illustrates message transmission of an R-DCCH when a dmch message is generated in a state in which no intermittent transmission is performed (in a state of continuous transmission in which DC = 1). In the state where the intermittent transmission is not performed, the dmch message is transmitted by activating the R-DCCH within at least one power control group such as 412a. Therefore, although there are only four locations for transmitting the R-DCCH by 20 msec / 5 msec = 4, according to the embodiment of the present invention, it is possible to exist in all power control groups (16 power control groups). Secondly, 420a illustrates the transmission of the R-DCCH message when a dmch message is generated in the state of intermittent transmission at an interruption rate of 1/2. When the dmch message occurs in the state of performing intermittent transmission at 1/2, the dmch message is transmitted by activating the R-DCCH in the two power control groups at the latest as shown in 414a. Thirdly, if a dmch message is generated in the interval of intermittent transmission at the 1/4 intermittent rate (DC = 1/4) as in 422a, the dmch message is transmitted by activating the R-DCCH in the four power control groups at the latest as in 416a. . Fourth, if a dmch message is generated in the interval of intermittent transmission at DC = 1/8 intermittent rate (DC = 1/8), 424a activates the R-DCCH within eight power control groups as late as 418a and transmits a dmch message. do.

In the embodiment of the present invention as shown in FIG. 4A, when a dmch message is generated while intermittent transmission is performed, even when a dmch message is generated in a section in which the corresponding power control group is not transmitted, the power control group in the corresponding section is activated. Let's do it. That is, even if the power control group is not transmitted as shown in 420a, 422a, and 424a in FIG. 4A, when the R-DCCH is transmitted within the section of the power control group, the power control group of the section is activated. When it is necessary to transmit the R-DCCH in the intermittent transmission state, the power control group scheduled to be transmitted in the intermittent transmission pattern like the preamble is used so that the base station can receive the R-DCCH more accurately, such as 414a, 416a, and 418a. One power control group, and then the R-DCCH. In addition, the R-DCCH transmits at a higher transmit power by ΔP than when continuously transmitting, which can be given as a system parameter.

410b, 490b, 492b, and 494b of FIG. 4B show a case in which a dedicated MAC logical channel dmch is generated and transmitted to R-DCCH, which is a physical channel, in a control hold state for the case of 300, 320, 322, and 324 of FIG. The possible locations of the DCCH are shown.

First, when a dmch message is generated in an intermittent period (DC = 1) such as 410b, the dmch message is transmitted by activating the R-DCCH in the four power control groups at the latest as shown in 411b. Therefore, there are only four locations where the R-DCCH can be transmitted by 20 msec / 5 msec = 4. Secondly, if a dmch message is generated in the interval of intermittent transmission with a 1/2 intermittent rate (DC = 1/2) as in 490b, the dmch message is transmitted by activating the R-DCCH in the four power control groups at the latest as in 413b. . Thirdly, if dmch is generated in the interval of intermittent transmission at 1/4 intermittent rate (DC = 1/4) as in 492b, the dmch message is transmitted by activating the R-DCCH in the four power control groups at the latest as in 415b. . Fourth, if a dmch message is generated in the interval of intermittent transmission at 1/8 intermittent rate (DC = 1/8) as in 494b, the dmch message is activated by activating the R-DCCH within eight power control groups at the latest as in 417b. Send.

In the embodiment of the present invention as shown in FIG. 4B, even if the power control group does not transmit in the intermittent transmission pattern as in 490b, 492b, and 494b, when the R-DCCH is transmitted within the period, the power control group in the period. Activate. If it is necessary to transmit the R-DCCH during intermittent transmission, the power is controlled by using a power control group scheduled to be transmitted in an intermittent transmission pattern such as a preamble so that the base station can receive the R-DCCH more accurately, such as 413b, 415b, and 417b. After transmitting the control group, the R-DCCH is transmitted. In addition, the R-DCCH transmits at a higher transmission power by ΔP than when no intermittent transmission that can be given as a system parameter is performed.

400c, 440c, 442c, and 444c of FIG. 4c show a case where a dedicated MAC logical channel dmch message is generated in the control hold state for the case of 300, 340, 342, and 344 of FIG. -Shows the possible location of the DCCH.

First, when a dmch message is generated in an intermittent transmission period (DC = 1) such as 400c, the dmch message is transmitted by activating the R-DCCH in at least one power control group such as 412c. Therefore, in the prior art, there were only four locations for transmitting the R-DCCH due to the existing 20 msec / 5 msec = 4, but in the method proposed in the embodiment of the present invention, in every 16 power control group units, R-CCCH can be transmitted. Secondly, if a dmch message is generated in the intermittent transmission section at 1/2 interruption rate (DC = 1/2) as in 440c, the dmch message is transmitted by activating the R-DCCH in the four power control groups at the latest as in 434c. . Thirdly, if a dmch message is generated in the interval of intermittent transmission with the 1/4 intermittent rate (DC = 1/4) as in 442c, the dmch message is transmitted by activating the R-DCCH in the four power control groups at the latest as in 436c. do. Thirdly, if a dmch message is generated in the interval of intermittent transmission at 1/8 intermittent rate (DC = 1/8) as in 444c, the dmch message is activated by activating the R-DCCH within eight power control groups at the latest as shown in 438c. Send.

Therefore, in the embodiment of the present invention as shown in FIG. 4C, even if the power control group does not transmit in the intermittent transmission pattern as in 440c, 442c, and 444c, when the R-DCCH is transmitted within the section, power control of the section is performed. Activate the army. If it is necessary to transmit the R-DCCH during intermittent transmission, the power is controlled by using a power control group scheduled to be transmitted in an intermittent transmission pattern such as a preamble so that the base station can receive the R-DCCH more accurately, such as 434c, 436c, and 438c. After transmitting the control group, the R-DCCH is transmitted. In addition, the R-DCCH transmits at a higher transmission power by ΔP than when no intermittent transmission that can be given as a system parameter is performed.

400d, 460d, 462d, and 464d of FIG. 4d illustrate a case in which a dedicated MAC logical channel dmch message is generated and transmitted to R-DCCH, which is a physical channel, in the control hold state for the cases of 300, 360, 362, and 364 of FIG. -Illustrates the possible location of the DCCH.

First, when a dmch message is generated in an intermittent period (DC = 1) such as 400d, the dmch message is transmitted by activating the R-DCCH in the power control group at the latest as shown in 412d. Therefore, a position capable of transmitting the R-DCCH may exist in 16 power control groups in every power control group unit. Secondly, if the dmch message is generated in the intermittent transmission section at ½ intermittent rate (DC = 1/2) as in 460, the dmch message is activated by activating the R-DCCH within five power control groups at the latest as shown in 454d. Send. Third, if a dmch message is generated in the interval of intermittent transmission with a 1/4 intermittent rate (DC = 1/4) such as 462d, the dmch message is transmitted by activating the R-DCCH within seven power control groups at the latest, such as 456d. do. Fourth, if a dmch message is generated in the interval of intermittent transmission at 1/8 intermittent rate (DC = 1/8) as in 464d, the dmch message is activated by activating R-DCCH within eight power control groups at the latest as in 458d. Send.

In the embodiment of the present invention having the structure as shown in FIG. 4D, even if the power control group does not transmit in the intermittent transmission pattern as in 460d, 462d, and 464d, when the R-DCCH is transmitted within the interval, Activate the power control group. If it is necessary to transmit the R-DCCH during intermittent transmission, the power is controlled by using a power control group scheduled to be transmitted in an intermittent transmission pattern such as a preamble so that the base station can receive the R-DCCH more accurately, such as 454d, 456d, and 458d. After transmitting the control group, the R-DCCH is transmitted. In addition, the R-DCCH transmits at a higher transmission power by ΔP than when no intermittent transmission that can be given as a system parameter is performed.

400e, 480e, 482e, and 484e of FIG. 4e illustrate a case in which a dedicated MAC logical channel dmch is generated and transmitted to R-DCCH, which is a physical channel, in a control hold state for the cases of 300, 380, 382, and 384 of FIG. The possible locations of the DCCH are shown.

First, when a dmch message is generated in an intermittent period (DC = 1) such as 400e, the dmch message is transmitted by activating the R-DCCH in at least one power control group as shown in 412. Therefore, a position capable of transmitting the R-DCCH may exist within 16 power control groups in every power control group unit. Secondly, if a dmch message is generated in the interval of intermittent transmission at a 1/2 intermittent rate (DC = 1/2) such as 480e, the dmch message is activated by activating the R-DCCH within nine power control groups at the latest as shown in 474e. Send. Thirdly, if a dmch message is generated in the intermittent transmission section at a ¼ intermittent rate (DC = 1/4) as in 482e, the dmch message is activated by activating the R-DCCH in at least thirteen power control groups as in 476e. Send. Fourth, if a dmch message is generated in the intermittent transmission section at 1/8 intermittent rate (DC = 1/8) as in 484e, the dmch message is transmitted by activating the R-DCCH within at least fifteen power control groups as in 478e. do.

In the embodiment of the present invention as shown in FIG. 4E, even if the power control group does not transmit in the intermittent transmission pattern as in 480e, 482e, and 484e, when the R-DCCH is transmitted within the section, the power control group of the section Activate. If it is necessary to transmit the R-DCCH during intermittent transmission, one power is utilized by using a power control group scheduled to be transmitted in an intermittent transmission pattern such as a preamble so that the base station can receive the R-DCCH more accurately, such as 474e, 476e, and 478e. After transmitting the control group, the R-DCCH is transmitted. In addition, the R-DCCH transmits at a higher transmission power by ΔP than when no intermittent transmission that can be given as a system parameter is performed.

400F, 421f, 422f, and 425f of FIG. 4F show a dedicated MAC logical channel dmch in the control hold state for the case of 300, 320, 322, and 324 of FIG. 3 according to another embodiment, to R-DCCH. It shows the possible location of the R-DCCH in the case of transmission.

First, when a dmch message is generated while the intermittent transmission is not performed as shown in 400f (the interval of continuous transmission with DC = 1), the dmch message is transmitted by activating the R-DCCH in at least one power control group as shown in 412f. do. Therefore, the position where the R-DCCH can be transmitted is possible in 16 places in every power control group unit. Secondly, if a dmch message is generated in an intermittent transmission section at 421f and a 1/2 interruption rate (DC = 1/2), the dmch message is transmitted by activating the R-DCCH in both power control groups at the latest as shown in 414f. . At this time, as shown in 415f, the reverse pilot / PCB channel of the power control group (hereinafter referred to as additional transmission power control group) immediately after the R-DCCH transmission is completed is transmitted to accurately estimate the channel at the base station. Thirdly, if a dmch message is generated in the intermittent transmission section at a 1/4 intermittent rate (DC = 1/4) as in 423f, the dmch message is transmitted by activating the R-DCCH in the four power control groups at the latest as in 416f. do. As shown in 416f, the reverse pilot / PCB channel of the power control group immediately after the completion of the R-DCCH transmission is transmitted to accurately estimate the channel at the base station. Fourth, if a dmch message is generated in the intermittent transmission section at 1/8 intermittent rate (DC = 1/8), 425f activates the R-DCCH within eight power control groups as late as 418f and transmits a dmch message. . As shown in 417f, the reverse pilot / PCB channel of the power control group immediately after the completion of the R-DCCH transmission is transmitted to accurately estimate the channel at the base station.

In the embodiment of the present invention having the structure as shown in FIG. 4F, even if the power control group does not transmit in the intermittent transmission pattern as in 420f, 422f, and 424f, when the R-DCCH is transmitted within the interval, Activate the power control group. When it is necessary to transmit the R-DCCH during intermittent transmission, the power is controlled by using a power control group scheduled to be transmitted in an intermittent transmission pattern such as a preamble so that the base station can receive the R-DCCH more accurately, such as 414f, 416f, and 418f. After transmitting the control group, the R-DCCH is transmitted. In addition, the R-DCCH transmits at a higher transmit power by ΔP than when continuously transmitting, which can be given as a system parameter. In the reverse pilot / PCB channel, when the additional transmission power control group is not the power control group to be transmitted, the forward power control bit may be omitted.

400g, 421g, 422g, and 425g of FIG. 4G show a dedicated MAC logical channel dmch in the control hold state for the case of 300, 320, 322, and 324 of FIG. 3 according to another embodiment, to R-DCCH. It shows the possible location of the R-DCCH in the case of transmission.

First, when a dmch message is generated in a section in which no intermittent transmission is performed (such as 400, during continuous transmission of DC = 1), the dmch message is transmitted by activating the R-DCCH in at least one power control group, such as 412g. Therefore, the position where the R-DCCH can be transmitted is possible in 16 places in every power control group unit. Secondly, if the dmch message is generated during intermittent transmission with the 1/2 interrupt rate (DC = 1/2), the 427g activates the R-DCCH in both power control groups at the latest, such as 414g, to generate the dmch message. Send. As shown in 405g, the backward pilot / PCB channel of the remaining power control group existing in the frame after the R-DCCH transmission is completed is transmitted to accurately estimate the channel at the base station. Thirdly, if a dmg message is generated in the intermittent transmission section at 428g with a 1/4 intermittent rate (DC = 1/4), the dmch message is transmitted by activating the R-DCCH in the four power control groups at the latest, such as 416g. do. As shown in 407g, the backward pilot / PCB channel of the remaining power control group existing in the frame after the R-DCCH transmission is completed is transmitted to accurately estimate the channel at the base station. Fourthly, 429g transmits a dmch message by activating the R-DCCH within eight power control groups at the latest, such as 418g, when a dmch message is generated during intermittent transmission at a 1/8 intermittent rate (DC = 1/8). As shown in 409g, the reverse pilot / PCB channel of the remaining power control group existing in the corresponding frame after the R-DCCH transmission is completed is transmitted to accurately estimate the channel at the base station.

In the embodiment of the present invention having the structure as shown in FIG. 4G, even if the power control group does not transmit in the intermittent transmission pattern, as in 420g, 422g, and 424g, when the R-DCCH is transmitted within the section, the power of the section. Activate the control group. If it is necessary to transmit the R-DCCH during intermittent transmission, the power is controlled by using a power control group scheduled to be transmitted in an intermittent transmission pattern such as a preamble so that the base station can receive the R-DCCH more accurately, such as 414g, 416g, and 418g. After transmitting the control group, the R-DCCH is transmitted. In addition, the R-DCCH transmits at a higher transmit power by ΔP than when continuously transmitting, which can be given as a system parameter.

An operation of performing intermittent transmission with the structure shown in FIGS. 4A to 4G will be described with reference to FIG. 2B. At this time, the intermittent transmission controller 290 includes an intermittent pattern having a structure as shown in FIGS. 4A to 4G. Then, the switch 232 is switched and controlled by the intermittent control signal of the intermittent transmission controller 290. In this case, the multiplexer 210 multiplexes a pilot signal and a PCB in units of a power control group, and the signal output from the multiplexer 210 is multiplied orthogonally by an orthogonal coding assigned to the reverse pilot / PCB channel in the mixer 230. Then, the switching control of the switch 232 intermittently outputs the signal of the multiplexed pilot / PCB channel with the specified interruption pattern and the interruption rate in the interruption pattern and the interruption rate as shown in FIG. 3.

At this time, when a dmch message is generated in the intermittent output period of the reverse pilot / PCB channel signal, the R-DCCH for transmitting the dmch is activated. Then, the dmch message is applied to the R-DCCH, channel encoded and interleaved, and then signal converted and applied. The mixer 240 then multiplies the dmch message by the orthogonal code assigned to the R-DCCH to spread orthogonally. In this case, the controller (not shown) controls the amplifier 242 to amplify and output ΔP more than the transmit power of the R-DCCH during continuous transmission when the message of the dedicated control channel is to be transmitted through the R-DCCH during intermittent transmission. Generate a gain control signal. Therefore, the amplifier 242 amplifies and outputs the transmission power of the R-DCCH by the gain control signal of the controller (not shown).

At this time, if the R-DCCH is generated while the intermittent transmission controller 290 performs the intermittent transmission function, the intermittent transmission controller 290 controls the signal of the reverse pilot / PCB channel by any of the methods of FIGS.

In addition, the concept of FIGS. 4F and 4G, which further transmits a power control group, is not only applied to the case of regular / intermittent transmission of FIG. 4A but may be commonly applied to all of the above-mentioned intermittent transmissions.

4H, 4I, 4J, 4K, and the reverse dedicated control channel shown in FIGS. 6E, 6F, 6G, and 6H according to an exemplary embodiment of the present invention are the same as the conventional method, the frame length of the reverse dedicated control channel is 5 msec. It can exist in four places (0/5/10/15 msec) within the basic frame length (20 msec).

400h, 420h, 422h, and 424h of FIG. 4H show a case in which a dedicated MAC logical channel dmch is generated and transmitted to R-DCCH, which is a physical channel, in the control hold state for the case of 300, 320, 322, and 324 of FIG. DCCH is shown.

Referring to FIG. 4H, 400h is one reverse dedicated control channel (R-DCCH) frame length at the latest, such as 412h after a dmch message is generated during non-intermittent transmission (during continuous transmission, DC = 1/1). This shows that the dmch message is transmitted by activating the R-DCCH within 5 msec. 420h shows transmitting a dmch message by activating the R-DCCH within 5 msec as late as 414h after dmch message generation during DC = 1/2 intermittent transmission. 422h shows the dmch message being activated by activating the R-DCCH within 5 msec at the latest as 416h after dmch generation during DC = 1/4 intermittent transmission. 424h illustrates transmitting a dmch message by activating the R-DCCH within 5 msec as late as 418h after dmch generation during DC = 1/8 intermittent transmission.

As shown in FIG. 4H, even if the power control group does not transmit in the intermittent transmission pattern as in 420h, 422h, and 424h, when the R-DCCH is transmitted within the interval, the R-DCCH is transmitted. Activate the power control group of the section. In the activated power control group, a forward power control bit (PCB) may be omitted and the pilot section may be extended to be the length of the power control group and transmitted. If it is necessary to transmit the R-DCCH during the intermittent transmission, the preamble (Am) and the postamble (Amble) before and after the R-DCCH so that the base station can receive the R-DCCH by more accurate channel estimation Add by activating and transmitting the pilot / PCB channel. In a period serving as the preamble and postamble in the reverse pilot / PCB channel, the forward power control bit (PCB) may be omitted and the pilot section may be extended to be the length of the power control group and transmitted. The number F (≧ 0) of the preamble and the number B (≧ 0) of the postamble are given as system parameters.

In all embodiments of the present invention, only F = 1 and B = 1 will be described and illustrated. When the power control group scheduled to be transmitted in the intermittent transmission pattern is included in the preamble and the postamble, the forward power control bit cannot be omitted. 420h and 422h are cases in which the predetermined power control groups 421h and 423h are used as preambles. Since there is no power control group in 424h, the preamble is activated as in 425h. In 420h, 422h, and 424h, since there is no power control group scheduled in the postamble section, the postamble is activated as shown in 415h, 417h, and 419h, respectively. The R-DCCH transmits with increased transmission power than when continuously transmitting (DC = 1/1) by the system parameter ΔP. Channel estimation uses the added preamble and postamble, but the search or tracking process for synchronization in the control hold state is performed using the power control group scheduled to be activated.

400i, 440i, 442i, and 444i of FIG. 4i show a case in which a dedicated MAC logical channel dmch is generated and transmitted to R-DCCH, which is a physical channel, in a control hold state for the case of 300, 340, 342, and 344 of FIG. DCCH is shown.

Referring to FIG. 4I, 400i is one reverse dedicated control channel (R-DCCH) frame length at the latest, such as 412i, after a dmch message is generated while not performing intermittent transmission (during continuous transmission, DC = 1/1). This shows that the dmch message is transmitted by activating the R-DCCH within 5 msec. 440i illustrates transmitting the dmch message by activating the R-DCCH within 5 msec as late as 434 after the occurrence of the dmch message during DC = 1/2 intermittent transmission. 442i illustrates transmitting the dmch message by activating the R-DCCH within 5 msec at the latest as 436i after dmch generation during DC = 1/4 intermittent transmission. 444i illustrates transmitting a dmch message by activating the R-DCCH within 5 msec at the latest as 438i after dmch generation during DC = 1/8 intermittent transmission.

Even in the case of the power control group not transmitting in the intermittent transmission pattern as in 440i, 442i, and 444i, when the R-DCCH is transmitted within the interval, the power control group of the interval in which the R-DCCCH is transmitted is activated. In the activated power control group, a forward power control bit (PCB) may be omitted, and the pilot section may be extended to be the length of the power control group and transmitted. If it is necessary to transmit the R-DCCH during the intermittent transmission, the preamble (Am) and the postamble (Amble) before and after the R-DCCH so that the base station can receive the R-DCCH with more accurate channel estimation Add by activating and transmitting the reverse pilot / PCB channel. In a period serving as the preamble and postamble in the reverse pilot / PCB channel, the forward power control bit (PCB) may be omitted and the pilot section may be extended to be the length of the power control group and transmitted. The number F (≧ 0) of the preamble and the number B (≧ 0) of the postamble are given as system parameters.

In all embodiments of the present invention, only F = 1 and B = 1 will be described and illustrated. When the power control group scheduled to be transmitted in the intermittent transmission pattern is included in the preamble and the postamble, the forward power control bit cannot be omitted. 440i illustrates a case where the predetermined power control groups 441h and 435h are used as preambles and postambles. In 442i, the predetermined power control group 437i is used as a postamble, and the preamble is activated as in 443i. In 444i, since the predetermined power control group is not in the preamble and postamble sections, the preamble and the postamble are activated as in 445i and 439i. The R-DCCH transmits with increased transmission power than when continuously transmitting (DC = 1/1) by the system parameter ΔP. Channel estimation uses the added preamble and postamble, but the search or tracking process for synchronization in the control hold state is performed using the power control group scheduled to be activated.

400J, 460j, 462j, and 464j of FIG. 4J illustrate a case in which a dedicated MAC logical channel dmch is generated and transmitted to R-DCCH, which is a physical channel, in the control hold state for the cases of 300, 360, 362, and 364 of FIG. The possible locations of the DCCH are shown.

Referring to FIG. 4j, 400j is one reverse dedicated control channel (R-DCCH) frame length at least as long as 412j after a dmch message is generated during non-intermittent transmission (during continuous transmission, DC = 1/1). This shows that the dmch message is transmitted by activating the R-DCCH within 5 msec. 460j illustrates transmitting a dmch message by activating the R-DCCH within 5 msec at the latest as 454j after dmch message generation during DC = 1/2 intermittent transmission. 462j illustrates transmitting a dmch message by activating the R-DCCH within 5 msec at the latest as 456j after dmch generation during DC = 1/4 intermittent transmission. 464j illustrates transmitting a dmch message by activating the R-DCCH within 5 msec at the latest as 458 after dmch generation during DC = 1/8 intermittent transmission.

Even if the power control group does not transmit in the intermittent transmission pattern as shown in 460j, 462j, and 464j in FIG. 4j, when the R-DCCH is transmitted within the interval, the power control group in the interval is activated. In the activated power control group, a forward power control bit (PCB) may be omitted and the pilot section may be extended to be the length of the power control group and transmitted. If it is necessary to transmit the R-DCCH during intermittent transmission, the reverse pilot before and after the R-DCCH is used to pre-amble and post-amble the R-DCCH so that the base station can accurately estimate the channel. Add by enabling and transmitting the PCB channel. In a period serving as the preamble and postamble in the reverse pilot / PCB channel, the forward power control bit (PCB) may be omitted and the pilot section may be extended to be the length of the power control group and transmitted. The number F (≧ 0) of the preamble and the number B (≧ 0) of the postamble are given as system parameters.

In all embodiments of the present invention, only F = 1 and B = 1 will be described and illustrated. When the power control group scheduled to be transmitted in the intermittent transmission pattern is included in the preamble and the postamble, the forward power control bit cannot be omitted. In 400j, the predetermined power control group is used as a preamble and a postamble. In 460j, since the predetermined power control group is not in the preamble and postamble sections, the preamble and the postamble are activated as in 461j and 455j, respectively. In 462j, since the predetermined power control group is not in the preamble and postamble sections, the preamble and the postamble are activated as shown in 463j and 457j, respectively. In 464j, since the predetermined power control group is not in the preamble and postamble sections, the preamble and the postamble are activated as in 465j and 459j, respectively. The R-DCCH transmits with increased transmission power than when continuously transmitting (DC = 1/1) by the system parameter ΔP. Channel estimation uses the added preamble and postamble, but the search or tracking process for synchronization in the control hold state is performed using the power control group scheduled to be activated.

400k, 480k, 482k, and 484k of FIG. 4k are R- when a dedicated MAC logical channel dmch is generated and transmitted to R-DCCH which is a physical channel in the control hold state for the case of 300, 380, 382, and 384 of FIG. The possible locations of the DCCH are shown.

Referring to FIG. 4K, 400k is equal to or less than 5 msec, which is one reverse dedicated control channel (R-DCCH) frame length, at least as long as 412k after the occurrence of a dmch message during no intermittent transmission (during continuous transmission). It shows sending a dmch message by activating DCCH. 480k shows that the dmch message is transmitted by activating the R-DCCH within 5 msec as late as 474 after the occurrence of the dmch message during DC = 1/2 intermittent transmission. 482k shows transmitting a dmch message by activating the R-DCCH within 5 msec at the latest as 476k after dmch generation during DC = 1/4 intermittent transmission. 484k shows transmitting a dmch message by activating the R-DCCH within 5 msec at the latest as 478k after dmch generation during DC = 1/8 intermittent transmission.

Even in the case of the power control group not transmitting in the intermittent transmission pattern as in 480k, 482k, and 484k, when the R-DCCH is transmitted within the interval, the power control group of the interval in which the R-DCCH is transmitted is activated. In the activated power control group, a forward power control bit (PCB) may be omitted and the pilot section may be extended to be the length of the power control group and transmitted. If it is necessary to transmit the R-DCCH during intermittent transmission, the reverse pilot before and after the R-DCCH is used to pre-amble and post-amble the R-DCCH so that the base station can accurately estimate the channel. Add by enabling and transmitting the PCB channel. In a period serving as the preamble and postamble in the reverse pilot / PCB channel, the forward power control bit (PCB) may be omitted and the pilot section may be extended to be the length of the power control group and transmitted. The number F (≧ 0) of the preamble and the number B (≧ 0) of the postamble are given as system parameters.

In all embodiments of the present invention, only F = 1 and B = 1 will be described and illustrated. When the power control group scheduled to be transmitted in the intermittent transmission pattern is included in the preamble and the postamble, the forward power control bit cannot be omitted. In 480k, the predetermined power control group 475k is used as a postamble, and the preamble is activated as 481k. In 482k, since the predetermined power control group is not in the preamble and postamble sections, the preamble and the postamble are activated as in 483k and 477k, respectively. In 484k, since the predetermined power control group is not in the preamble and postamble sections, the preamble and the postamble are activated as in 485k and 479k, respectively. The R-DCCH transmits with increased transmission power than when continuously transmitting (DC = 1/1) by the system parameter ΔP. Channel estimation uses the added preamble and postamble, but the search or tracking process for synchronization in the control hold state is performed using the power control group scheduled to be activated.

Before describing FIG. 5 and FIG. 6, two power control schemes will be described.

Normal power control is as follows. The base station (mobile station) instructs the mobile station (base station) transmit power to increase when the signal-to-interference ratio of the received reverse signal is lower than the reference value, and the mobile station (base station) increases the transmit power of the transmitter in accordance with the above command. The base station (mobile station) instructs the mobile station (base station) transmit power to decrease if the signal-to-interference ratio of the received reverse signal is higher than the reference value, and the mobile station (base station) lowers the transmit power of the transmitter according to the command. That is, in the normal power control method, when the receiving side measures the reception strength of the signal transmitted from the counterpart, and generates the normal power control bit according to the result and notifies the transmitting side, the transmitting side determines the transmission signal according to the received power control information. It is a way of controlling power. The normal power control bit refers to information bits generated and transmitted for the normal power control.

Defensive Power Control is as follows. The base station (mobile station) instructs the mobile station (base station) transmit power increase if the signal-to-interference ratio of the received reverse signal is lower than the reference value. That is, the normal power control bit is transmitted. If the mobile station (base station) transmit power to be increased according to the above command is within the range of the transmit power magnitude given by the system parameter, the transmit power of the transmitter is increased according to the above command. However, if the mobile station (base station) transmit power to be increased according to the above power control command exceeds the range of the transmit power magnitude given by the system parameter, the transmitter transmit power of the transmitter is kept in the current state. The base station (mobile station) instructs the mobile station (base station) transmit power to decrease when the signal-to-interference ratio of the received reverse signal is higher than the reference value. That is, the normal power control bit is transmitted, and the mobile station (base station) lowers the transmission power of the transmitter in accordance with the above command. The defensive power control method is the same as the normal power control method for the power reduction command. However, there is a difference between a normal power control process and a defensive power control process in which a normal power control bit is received and processed.

5A through 5D, 500 indicates a transmission structure of the forward dedicated control channel when the interruption rate is 1 (Dc = 1), and 510 indicates a transmission structure when the interruption rate is 1 (DC = 1). A transmission structure of a reverse pilot / PCB channel is shown. Secondly, in the reference numerals of FIGS. 5A to 5D, 520 indicates a transmission structure of the forward dedicated control channel when the interruption rate is 1/2 (Dc = 1/2), and 530 indicates an interruption rate of 1. The transmission structure of the reverse pilot / PCB channel in the case of / 2 (DC = 1/2) is shown. Third, in the reference numerals of FIGS. 5A to 5D, 540 indicates a transmission structure of the forward dedicated control channel when the interruption rate is 1/4 (Dc = 1/4), and 550 indicates an interruption rate of 1. The transmission structure of the reverse pilot / PCB channel in the case of / 4 (DC = 1/4) is shown. Fourth, among the reference numbers in FIGS. 5A to 5D, 560 indicates a transmission structure of the forward dedicated control channel when the interruption rate is 1/8 (Dc = 1/8), and 570 indicates that the interruption rate is 1/8. The transmission structure of the reverse pilot / PCB channel in the case of (DC = 1/8) is shown.

5A and 5C, reference numerals 500 and 510 show power control for the reverse pilot / PCB channel in the case of continuous transmission (DC = 1) when the R-DCCH is not activated in the control hold state. In the case of performing the continuous transmission operation as described above, power control in the forward and reverse directions is performed at the same time interval.

Reference numerals 520 and 530 of FIG. 5A refer to a reverse pilot / PCB channel for regular / intermittent transmission at a 1/2 interruption rate (DC = 1/2) when the R-DCCH is not activated in the control hold state. Power control is shown. In the case of regular / intermittent transmission at 1/2 interruption rate as described above, power control is performed in the forward and reverse directions at the same time interval. At this time, the position of the reverse power control bit in the forward channel is determined according to the intermittent transmission pattern of the reverse link, the pattern is the same. The reverse power control bit is a power control bit generated by the normal power control method. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. 5A, 5B, 5C, and 5D, which are embodiments, have a positive value. 5A and 5D illustrate the normal power control operation when the R-DCCH is not activated in the control hold state. 6A through 6D are diagrams illustrating a power control method when the R-DCCH is activated in a control holding state, in which case a defensive power control operation is performed. Since the period in which the reverse power control bit is located in the forward channel is determined according to the reverse intermittent transmission pattern, there is a delay until one reverse power control command becomes valid. The delay is uniform because the intermittent transmission pattern is regular. That is, in FIG. 5A, the reverse power control command 522 is applied to the power control group 532 of the reverse pilot / PCB channel.

Reference numerals 540 and 550 of FIG. 5B indicate that when the R-DCCH is not activated in the control holding state according to the embodiment of the present invention, when the R-DCCH is not activated and has a 1/4 intermittent rate (DC = 1/4) The power control operation is shown. Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. The reverse power control bit is a power control bit generated by the normal power control process. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. When the R-DCCH is not activated in the control hold state as shown in FIG. 5, normal power control is performed. As shown in FIG. 6, when the R-DCCH is activated in the control holding state, defensive power control may be performed. Since the existence period of the reverse power control bit in the forward channel is determined according to the reverse intermittent transmission pattern, there is a delay until one reverse power control command becomes valid. The delay is uniform because the transmission pattern is regular. The reverse power control command 542 is applied to the power control group 552 of the reverse pilot / PCB channel.

Reference numerals 560 and 570 of FIG. 5B illustrate a power control operation when performing regular / intermittent transmission at 1/8 intermittent rate (DC = 1/8) when the R-DCCH is not activated in the control holding state. have.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. The reverse power control bit is a power control bit generated by the normal power control process. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. When the R-DCCH is not activated in the control hold state as shown in FIG. 5, normal power control is performed. As shown in FIG. 6, when the R-DCCH is activated in the control holding state, defensive power control may be performed. Since the existence period of the reverse power control bit in the forward channel is determined according to the reverse intermittent transmission pattern, there is a delay until one reverse power control command becomes valid. The delay is uniform because the transmission pattern is regular. The reverse power control command 562 is applied to the power control group 572 of the reverse pilot / PCB channel.

Reference numerals 521 and 531 of FIG. 5C show power control for the case of irregular / intermittent transmission at 1/2 interruption rate (DC = 1/2) when the R-DCCH is not activated in the control holding state.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. The reverse power control bit is a power control bit generated by the normal power control process. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. When the R-DCCH is not activated in the control hold state as shown in FIG. 5, normal power control is performed. As shown in FIG. 6, when the R-DCCH is activated in the control holding state, defensive power control may be performed. Since the existence period of the reverse power control bit in the forward channel is determined according to the reverse intermittent transmission pattern, there is a delay until one reverse power control command becomes valid. The delay is not uniform because the transmission pattern is irregular. The reverse power control command 523 is applied to the power control group 533 of the reverse pilot / PCB channel.

Reference numerals 541 and 551 of FIG. 5D show power control for the case of DC = 1/4 irregular / intermittent transmission when the R-DCCH is not activated in the control holding state.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. The reverse power control bit is a power control bit generated by the normal power control process. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. When the R-DCCH is not activated in the control hold state as shown in FIG. 5, normal power control is performed. As shown in FIG. 6, when the R-DCCH is activated in the control holding state, defensive power control may be performed. In addition, when a control signal to be transmitted is generated and the R-DCCH is activated, the intermittent transmission rate may be set to 1 in a section in which the control signal is transmitted. Since the presence interval of the reverse power control bit in the forward channel is determined according to the reverse intermittent transmission pattern, there is a delay until one reverse power control command becomes valid. The delay is not uniform because the transmission pattern is irregular. The reverse power control command 543 is applied to the power control group 553 of the reverse pilot / PCB channel.

Reference numerals 561 and 571 of FIG. 5D show power control in the case of irregular / intermittent transmission at 1/8 intermittent rate (DC = 1/8) when the R-DCCH is not activated in the control hold state.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. The reverse power control bit is a power control bit generated by the normal power control process. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. When the R-DCCH is not activated in the control hold state as shown in FIG. 5, normal power control is performed. As shown in FIG. 6, when the R-DCCH is activated in the control holding state, defensive power control may be performed. In addition, when a control signal to be transmitted is generated and the R-DCCH is activated, the intermittent transmission rate may be set to 1 in a section in which the control signal is transmitted. Since the existence period of the reverse power control bit in the forward channel is determined according to the reverse intermittent transmission pattern, there is a delay until one reverse power control command becomes valid. The delay is not uniform because the transmission pattern is irregular. The reverse power control command 563 is applied to the power control group 573 of the reverse pilot / PCB channel.

Reference numerals 600 and 610 of FIGS. 6A and 6C are ping-pong diagrams for reverse power control when the R-DCCH is activated in the control holding state for the case of 300 of FIG. 3. 6A and 6B illustrate a case where a negative offset between a forward intermittent transmission pattern and a backward intermittent transmission pattern is negative. That is, the number of the forward power control group or timeslot including the reverse power control command is smaller than the number of the reverse power control group or timeslot to which the reverse power control command is applied. 6C and 6D, on the other hand, are cases where the offset between the forward intermittent transmission pattern and the reverse intermittent transmission pattern is positive. That is, the number of the forward power control group or timeslot including the reverse power control command is larger than the number of the reverse power control group or timeslot to which the reverse power control command is applied.

Reference numerals 620 and 630 of FIG. 6A illustrate power control for the case of DC = 1/2 regular / intermittent transmission when the R-DCCH is activated in the control holding state according to an embodiment of the present invention.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. (Offset <0). In the period in which the R-DCCH is activated in the control holding state, normal power control or defensive power control is performed. The defensive power control reduces the transmission power according to the received power control command when the mobile station receives the reverse power control bit generated by the normal power control process and the received command commands power reduction. However, when the received command is an increase in power, if the transmission power to be increased based on a reference value given as a system parameter exceeds the reference value, the current transmission power is maintained without transmitting the transmission power. In a system to which the defensive power control process is applied, reference numeral 622 denotes a reverse power control command generated during a normal power process, and the mobile station that receives the command is a section in which the power control bit is valid (hereinafter, defensive power control section). Defensive power control). The R-DCCH transmits the MAC message without generating a notice to the other party at a location where the R-DCCH can be transmitted in order to minimize the processing time. The base station determines whether to transmit the R-DCCH on the basis of the processing result by processing the data in the frame unit of the R-DCCH at the position where the R-DCCH can exist, and then transmits it through the R-DCCH Processed messages In the determination process, CRC and energy of a received signal may be used after channel decoding. As described above, when the base station can determine whether the R-DCCH is present, a process such as channel encoding and CRC check is performed after receiving the R-DCCH frame unless there is a preceding message or indicator indicating whether the R-DCCH is present. Since it is over, it is impossible to judge while the R-DCCH is actually being transmitted. Therefore, the base station transmits the reverse power control command in the section in which the R-DCCH is present through the forward channel is possible only in the power control group or time slots defined in advance by the intermittent transmission pattern. According to the reverse power control command in the slot, the mobile station autonomously performs normal power control or defensive power control.

Reference numerals 640 and 650 of FIG. 6B show power control for the case of regular / intermittent transmission at a 1/4 interruption rate (DC = 1/4) when the R-DCCH is activated in the control hold state.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. (Offset <0) In the period in which the R-DCCH is activated in the control holding state, normal power control or defensive power control is performed. In the power control group and time slot defined by the intermittent transmission pattern, the mobile station autonomously performs normal power control or defensive power control according to the reverse power control command. In the system to which the defensive power control process is applied, reference numeral 642 denotes a reverse power control command generated during the normal power process, and the mobile station receiving the command performs defensive power control in the defensive power control interval.

Reference numerals 660 and 670 of FIG. 6B show power control for the case of 1/8 intermittent rate (DC = 1/8) regular / intermittent transmission when the R-DCCH is activated in the control hold state.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern within a frame. (Offset <0) In the period in which the R-DCCH is activated in the control holding state, normal power control or defensive power control is performed. In the case of 660 and 670, since the reverse power control command received by the mobile station does not exist in the section in which the R-DCCH is generated, the defensive power control cannot be performed.

Reference numerals 621 and 631 of FIG. 6C show power control for the case of regular / intermittent transmission at 1/2 interruption rate (DC = 1/2) when the R-DCCH is activated in the control hold state.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. (Offset> 0) In the period in which the R-DCCH is activated in the control holding state, normal power control or defensive power control is performed. The defensive power control reduces the transmit power in accordance with the command when the mobile receives the reverse power control bit generated by the normal power control procedure and the received command commands power reduction. However, when the received command is an increase in power, if the transmission power to be increased based on a reference value given as a system parameter exceeds the reference value, the current transmission power is maintained without transmitting the transmission power. In a system to which a defensive power control process is applied, reference numeral 623 is a reverse power control command generated during a normal power process, and the mobile station receiving the command performs defensive power control in a defensive power control interval. The R-DCCH is transmitted without notifying the other party in advance at the location where the R-DCCH can be transmitted in order to minimize processing time when the MAC message is generated. The base station determines whether to transmit the R-DCCH on the basis of the processing result by processing the data in the frame unit of the R-DCCH at the position where the R-DCCH can exist, and then transmits it through the R-DCCH Processed messages In the determination process, CRC and energy of a received signal may be used after channel decoding. As described above, when the base station can determine whether the R-DCCH is present, a process such as channel encoding and CRC check is performed after receiving the R-DCCH frame unless there is a preceding message or indicator indicating whether the R-DCCH is present. Since it is over, it is impossible to judge while the R-DCCH is actually being transmitted. Therefore, the base station transmits the reverse power control command in the section in which the R-DCCH is present through the forward channel is possible only in the power control group or time slots defined in advance by the intermittent transmission pattern. According to the reverse power control command in the slot, the mobile station autonomously performs normal power control or defensive power control.

Reference numerals 641 and 651 of FIG. 6D show power control for the case of 1/4 intermittent rate (DC = 1/4) regular / intermittent transmission when the R-DCCH is activated in the control hold state.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. In the interval where the R-DCCH is activated in the (offset 0) control holding state, normal power control or defensive power control is performed. In the power control group and time slot defined by the intermittent transmission pattern, the mobile station autonomously performs normal power control or defensive power control according to the reverse power control command. In the system to which the defensive power control process is applied, reference numeral 643 denotes a reverse power control command generated during the normal power process, and the mobile station receiving the command performs defensive power control in the defensive power control interval.

6D and 671 of FIG. 6D show power control for the case of DC = 1/8 regular / intermittent transmission when the R-DCCH is activated in the control holding state according to the embodiment of the present invention.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. (Offset> 0) In the period in which the R-DCCH is activated in the control holding state, normal power control or defensive power control is performed. In the power control group and time slot defined by the intermittent transmission pattern, the mobile station autonomously performs normal power control or defensive power control according to the reverse power control command. In the system to which the defensive power control process is applied, reference numeral 663 denotes a reverse power control command generated during the normal power process, and the mobile station receiving the command performs defensive power control in the defensive power control interval.

6E, 6F, 6G, and 6H illustrate a power control process when activating a reverse dedicated control channel according to an embodiment of the present invention. 6E and 6F show negative offsets between the forward intermittent transmission pattern and the backward intermittent transmission pattern. That is, the number of the forward power control group or timeslot including the reverse power control command is smaller than the number of the reverse power control group or timeslot to which the reverse power control command is applied. 6G and 6H show a positive offset between the forward intermittent transmission pattern and the backward intermittent transmission pattern. That is, the number of the forward power control group or timeslot including the reverse power control command is larger than the number of the reverse power control group or timeslot to which the reverse power control command is applied.

In FIG. 6E, reference numerals 620 and 630 denote power control for a case of 1/2 intermittent rate (DC = 1/2) regular / intermittent transmission when the R-DCCH is activated in a control holding state according to an embodiment of the present invention. Shows.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. In the period in which the R-DCCH is activated in the control maintaining state, normal power control or defensive power control is performed. The defensive power control reduces the transmit power in accordance with the command when the mobile receives the reverse power control bit generated by the normal power control procedure and the received command commands power reduction. However, when the received command is an increase in power, if the transmission power to be increased based on a reference value given as a system parameter exceeds the reference value, the current transmission power is maintained without transmitting the transmission power. In a system to which a defensive power control process is applied, reference numeral 622 denotes a reverse power control command generated during a normal power process, and the mobile station receiving the command is a section in which the power control bit is valid (hereinafter referred to as a defensive power control section). Defensive power control is performed. The R-DCCH transmits the MAC message without generating a notice to the other party at a location where the R-DCCH can be transmitted in order to minimize the processing time. The base station determines whether to transmit the R-DCCH on the basis of the processing result by processing the data in the frame unit of the R-DCCH at the position where the R-DCCH can exist, and then transmits it through the R-DCCH Processed messages In the determination process, CRC and energy of a received signal may be used after channel decoding. As described above, when the base station can determine the existence of the R-DCCH, if there is no preceding message or indicator indicating whether the R-DCCH is present, a process such as channel coding and CRC check after receiving the R-DCCH frame Since it is after this, it is practically impossible to judge while the R-DCCH is being transmitted. Therefore, the base station transmits the reverse power control command in the section in which the R-DCCH is present through the forward channel is possible only in the power control group or time slots defined in advance by the intermittent transmission pattern. According to the reverse power control command in the slot, the mobile station autonomously performs normal power control or defensive power control.

Reference numerals 640 and 650 of FIG. 6F illustrate power control in the case of DC = 1/4 regular / intermittent transmission when the R-DCCH is activated in the control holding state according to the embodiment of the present invention.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. In the period in which the R-DCCH is activated in the control maintaining state, normal power control or defensive power control is performed. In the power control group and time slot defined by the intermittent transmission pattern, the mobile station autonomously performs normal power control or defensive power control according to the reverse power control command. In a system to which a defensive power control process is applied, reference numeral 642 denotes a reverse power control command generated during a normal power process, and the mobile station receiving the command performs defensive transmit power control in the defensive power control interval.

Reference numerals 660 and 670 of FIG. 6F illustrate power control for the case of DC = 1/8 regular / intermittent transmission when the R-DCCH is activated in the control holding state according to the embodiment of the present invention.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. In the period in which the R-DCCH is activated in the control maintaining state, normal power control or defensive power control is performed. In the power control group and time slot defined by the intermittent transmission pattern, the mobile station autonomously performs normal power control or defensive power control according to the reverse power control command. In a system to which a defensive power control process is applied, reference numeral 662 is a reverse power control command generated during a normal power process, and the mobile station receiving the command performs defensive transmit power control in the defensive power control interval.

Reference numerals 621 and 631 of FIG. 6G illustrate power control for the case of DC = 1/2 regular / intermittent transmission when the R-DCCH is activated in the control holding state according to the embodiment of the present invention.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. In the period in which the R-DCCH is activated in the control maintaining state, normal power control or defensive power control is performed. The defensive power control reduces the transmit power in accordance with the command when the mobile receives the reverse power control bit generated by the normal power control procedure and the received command commands power reduction. However, when the received command is an increase in power, if the transmission power to be increased based on a reference value given as a system parameter exceeds the reference value, the current transmission power is maintained without transmitting the transmission power. In a system to which a defensive power control process is applied, reference numeral 623 is a reverse power control command generated during a normal power process, and the mobile station receiving the command performs defensive power control in a defensive power control interval. The R-DCCH transmits the MAC message without generating a notice to the other party at a location where the R-DCCH can be transmitted in order to minimize the processing time. The base station determines whether to transmit the R-DCCH on the basis of the processing result by processing the data in the frame unit of the R-DCCH at the position where the R-DCCH can exist, and then transmits it through the R-DCCH Processed messages In the determination process, CRC and energy of a received signal may be used after channel decoding. As described above, when the base station can determine whether the R-DCCH is present, if there is no preceding message or indicator indicating whether the R-DCCH is present, a process such as channel coding and CRC check after receiving the R-DCCH frame Since it is after this, it is practically impossible to judge while the R-DCCH is being transmitted. Therefore, the base station transmits the reverse power control command in the section in which the R-DCCH is present through the forward channel is possible only in the power control group or time slots defined in advance by the intermittent transmission pattern. According to the reverse power control command in the slot, the mobile station autonomously performs normal power control or defensive power control.

Reference numerals 641 and 651 of FIG. 6H illustrate power control in the case of DC = 1/4 regular / intermittent transmission when the R-DCCH is activated in the control holding state according to the embodiment of the present invention.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. In the period in which the R-DCCH is activated in the control maintaining state, normal power control or defensive power control is performed. In the power control group and time slot defined by the intermittent transmission pattern, the mobile station autonomously performs normal power control or defensive power control according to the reverse power control command. In the system to which the defensive power control process is applied, reference numeral 643 denotes a reverse power control command generated during the normal power process, and the mobile station receiving the command performs defensive power control in the defensive power control interval.

Reference numerals 661 and 671 of FIG. 6H illustrate power control for the case of DC = 1/8 regular / intermittent transmission when the R-DCCH is activated in the control holding state according to the embodiment of the present invention.

Power control is performed at the same time interval in both the forward and reverse directions. The reverse intermittent transmission pattern determines the position of the reverse power control bit in the forward channel and the pattern is the same. For efficient power control, there is an offset that can be given as a system parameter between the forward pattern and the reverse pattern in one frame. In the period in which the R-DCCH is activated in the control maintaining state, normal power control or defensive power control is performed. In the power control group and time slot defined by the intermittent transmission pattern, the mobile station autonomously performs normal power control or defensive power control according to the reverse power control command. Reference numeral 663 denotes a reverse power control command generated during a normal power process and is applied to a power control group to be activated next. In this embodiment, there is no defensive power control section.

7A is a diagram illustrating a configuration of reverse power control for a plurality of reverse dedicated channels by a forward time division dedicated control channel in a control holding state according to an exemplary embodiment of the present invention. At the same time, power control symbols are code-multiplexed using orthogonal codes at the same location for power control of a plurality of reverse dedicated channels. 710 illustrates a method of transmitting the power control symbol by using a Walsh code in an orthogonal code. FIG. 7B illustrates an embodiment of reverse power control command transmission signals for the plurality of reverse channels of FIG. 7A. FIG. 7B is an example of a transmission signal scheme for commanding two values such as transmit power increase and decrease for up to four reverse dedicated control channels. FIG. 7C illustrates another embodiment of a reverse power control command transmission signal for the plurality of reverse channels of FIG. 7A. FIG. 7C illustrates an example of a transmission signal scheme for instructing three values, such as increasing and decreasing transmission power, for up to four reverse dedicated control channels. As shown in 700 of FIG. 7A, only the power control group corresponding to the intermittent pattern in the reverse channel has a power control symbol for normal power control, which is code-multiplexed by orthogonal codes, depending on whether the R-DCCH is activated. Power control symbols for defensive power control are code division multiplexed in the corresponding power control group.

Reference numerals 830, 850, and 870 of FIG. 8A are methods for assigning time diversity to a transmission signal of a mobile station. Referring to FIG. 8A, reference numeral 820 illustrates the reception of a transmission signal of the mobile station at a base station to transmit a relatively low-speed reverse power control command to a forward channel at a predetermined location. Intermittent / regular transmission of the transmission signal of the mobile station at the same speed as transmitting a long time at low speed reduces the burden on high-speed power control, such as 800, compared to a signal having less time diversity because it uses time diversity.

Reference numerals 834 and 854 874 of FIG. 8B are methods for assigning time diversity to a transmission signal of a mobile station. Referring to FIG. 8B, reference numeral 820 illustrates that the mobile station transmits a signal at the base station and transmits a relatively low-speed reverse power control command to the forward channel in accordance with the intermittent pattern. The intermittent transmission of the transmission signal of the mobile station at the same speed as the transmission of the long time at low speed uses time diversity, thereby reducing the burden on high-speed power control such as 800 compared to a signal having less time diversity.

Reference numeral 920 of FIG. 9A is a method for granting time diversity to a transmission signal of a base station, and transmits a base station transmission signal at a low speed for a long time. 950 illustrates receiving a transmission signal of the base station such as 920 at a mobile station to transmit a relatively low speed forward power control command on a reverse channel. As described above, since the base station transmits the transmission signal for a long time at a low speed, it uses time diversity, so that the burden on the high-speed power control such as 930 is reduced compared to a signal having less time diversity.

Reference numeral 922 of FIG. 9B is a method for granting time diversity to a transmission signal of a base station, and is a method of regularly transmitting a transmission signal of the base station for an intermittently long period at the same speed. 952 illustrates receiving a transmission signal of the base station such as 922 at a mobile station and transmitting a relatively low speed forward power control command on a reverse channel. As described above, the intermittent transmission of the transmission signal of the base station at the same speed as the transmission of the long time at low speed uses time diversity, thereby reducing the burden on the high-speed power control as compared to a signal having less time diversity.

Reference numeral 924 of FIG. 9C is a method for granting time diversity to a transmission signal of a base station, and is a method of irregularly transmitting a transmission signal of the base station for an intermittently long period at the same speed. 954 illustrates that the mobile station receives the irregular / intermittent base station transmission signal such as 924 and transmits a relatively low speed forward power control command through a reverse channel. Since the base station intermittently transmits the transmission signal at the same speed as transmitting a long time at a low speed, it uses time diversity, thereby reducing the burden on high-speed power control such as 934 as compared to a signal having less time diversity.

The interruption rate and the timing of the interruption of the present invention are determined by mutual appointment between the base station and the terminal. Also, the interruption rate is determined according to the state of the channel.In general, if the channel condition is good, the interruption rate is set low (1/2-> 1/4), and if the channel condition is bad, the interruption rate is high (1/4-> 1/2). It must be decided. The timing of the enforcement may vary depending on the transition method to the control maintenance state, but when the transition is made by sending a message required for the state transition, the start time of the enforcement may be determined, and the base station and the terminal may be changed even when the state is transitioned by the timer operation. You can start by matching the intermittent start time. The present invention has been described as intermittent transmission when the user data to be transmitted / received does not occur for a certain period of time and then transitions to the control maintenance state. However, the discontinuity transmission period is performed in the data transmission state (active status) without transitioning to the control maintenance state. Intermittent transmission is possible even in this long case.

The continuous transmission of the reverse pilot / PCB channel in the control hold state according to the conventional method is advantageous in that it can avoid the synchronous re-acquisition process at the base station, but as mentioned above, the interference of the reverse link is increased. In addition to reducing the reverse capacity, it also increases the power consumption of the mobile station, thereby shortening the use time of the mobile station. 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. The present invention minimizes the time spent in the synchronization reacquisition process at the base station, and minimizes the increase in interference due to transmission of a reverse pilot / PCB channel and the increase in interference due to transmission of a reverse power control bit to a forward link. Purpose.

As described above, the present invention minimizes the time spent in the synchronization reacquisition process at the base station, and increases the interference by the continuous transmission of the reverse pilot / PCB channel and reduces the time used by the mobile station, and reverse power control bits to the forward link. The capacity is increased by minimizing the increase of interference due to transmission.

Claims (41)

A channel signal generator for generating a pilot signal and a power control bit of a reverse link; And an intermittent controller configured to intermittently control the pilot signal and the power control bit generated intermittently in accordance with a predetermined interruption rate in a control holding state. The method of claim 1, wherein the channel signal generator, A multiplexer for multiplexing and outputting power control information of a reverse link to the reverse pilot signal in units of a power control group; An orthogonal modulator for orthogonally spreading the output of the multiplexer with an orthogonal code assigned to the channel; And an interrupter configured to interrupt the orthogonal spread signal by the output of the interrupt controller. 3. The mobile station of claim 2, wherein the intermittent controller intermittently controls to transmit power control groups corresponding to one half of a frame period among the power control groups within one frame period of the channel signal. Intermittent transmitter. 3. The mobile station of claim 2, wherein the intermittent controller intermittently controls to transmit power control groups corresponding to a quarter sized frame period among the power control groups within one frame period of the channel signal. Intermittent transmitter. The mobile station of claim 2, wherein the intermittent controller intermittently controls to transmit power control groups corresponding to one eighth frame period among the power control groups within one frame period of the channel signal. Intermittent transmitter. A dedicated control channel signal generator for puncturing a predetermined position among control messages for transmitting and inserting power control information for controlling the transmit power of a reverse link in the punctured position; And an intermittent controller configured to intermittently control the power control information from the dedicated control channel signal generator intermittently according to a predetermined interruption rate in a control holding state. The method of claim 6, wherein the dedicated control channel signal generator, A control message generator for generating a control message for transmitting to the dedicated control channel; A puncturing inserter for puncturing a predetermined position of the control message and inserting power control information into the punctured position to control the transmit power of the reverse link; An orthogonal modulator for orthogonally spreading with an orthogonal code assigned to the dedicated control channel as an output of the puncture inserter; And an interrupter configured to interrupt a control message of the dedicated control channel orthogonally spread by the output of the interrupt controller. 8. The code division multiple access communication system according to claim 7, wherein the intermittent controller intermittently controls to transmit power control groups corresponding to a half frame size of the power control groups within one frame period of the dedicated control channel signal. Intermittent transmission device of the base station. 8. The code division multiple access communication system according to claim 7, wherein the intermittent controller intermittently controls to transmit power control groups corresponding to a quarter sized frame period among the power control groups within one frame period of the dedicated control channel signal. Intermittent transmission device of the base station. 8. The code division multiple access communication system according to claim 7, wherein the intermittent controller intermittently controls to transmit power control groups corresponding to one eighth frame period among the power control groups within one frame period of the dedicated control channel signal. Intermittent transmission device of the base station. Generating a pilot signal and a power control bit of a reverse link; An intermittent transmission method of a mobile station in a code division multiple access communication system comprising a step of intermittently intermittently transmitting a signal of the pilot channel and a power control bit according to a predetermined interruption rate in a control holding state. The method of claim 11, wherein the step of generating a pilot signal and a power control bit of the reverse link, Multiplexing and outputting power control information of a reverse link to a reverse pilot signal in units of a power control group period; And orthogonally spreading the multiplexed signal into an orthogonal code assigned to the channel. 13. The intermittent transmission of claim 12, wherein the intermittent transmission process transmits power control groups corresponding to one half of a frame period among power control groups within one frame period of the channel signal. Transmission method. 13. The intermittent transmission of claim 12, wherein the intermittent transmission process transmits power control groups corresponding to one-quarter sized frame periods among the power control groups within one frame period of the channel signal. Transmission method. 13. The intermittent transmission of claim 12, wherein the intermittent transmission process transmits power control groups corresponding to one eighth frame period among the power control groups within one frame period of the channel signal. Transmission method. Puncturing a predetermined position among control messages for transmission, inserting power control information for controlling the transmission power of a reverse link into the punctured position, and outputting the same through a dedicated control channel; An intermittent transmission method of a base station of a code division multiple access communication system comprising the step of intermittently intermittently transmitting the power control information of the dedicated control channel signal in accordance with a predetermined interruption rate in a control holding state. The method of claim 16, wherein the outputting the dedicated control channel signal, Generating a control message for transmitting to the dedicated control channel; Drilling a predetermined position of the control message and inserting power control information into the punctured position in order to control the transmission power of the reverse link; And an orthogonal spreading of the control message in which the power control information is inserted into the orthogonal code assigned to the dedicated control channel. 18. The base station of claim 17, wherein the intermittent transmission process transmits power control groups corresponding to one half of a frame period among power control groups within one frame period of the dedicated control channel signal. Intermittent transmission method. 18. The base station of claim 17, wherein the intermittent transmission process transmits power control groups corresponding to a quarter frame size among power control groups within one frame period of the dedicated control channel signal. Intermittent transmission method. The base station of a code division multiple access communication system according to claim 17, wherein the intermittent transmission process transmits power control groups corresponding to a 1/8 size frame period among power control groups within one frame period of the dedicated control channel signal. Intermittent transmission method. Intermittent control to intermittently transmit a reverse pilot signal and a power control bit according to a predetermined interruption rate in a control holding state; Transmitting a reverse pilot signal and a power control bit continuously in a transmission period of the message when a message for transmitting through a dedicated control channel of the reverse link occurs in the intermittent control process; An intermittent transmission method of a mobile station in a code division multiple access communication system comprising re-executing the intermittent control process after transmitting the message on the dedicated control channel. 22. The method according to claim 21, wherein the message of the dedicated control channel is a message of an access medium access logical channel. 22. The method of claim 21, wherein the transmission power of the message of the transmitted dedicated control channel is increased to be transmitted. 22. The method of claim 21, further comprising increasing and transmitting a transmission power of the reverse pilot signal in a section in which a message of the dedicated control channel is transmitted. Intermittent control to intermittently transmit a reverse pilot signal and a power control bit according to a predetermined interruption rate in a control holding state; Continuously transmitting a message of the reverse dedicated control channel when a message for transmitting through the dedicated control channel of the reverse link is activated in the intermittent control process; Transmitting the reverse pilot signal and the power control bit corresponding to at least one slot after transmitting the message of the dedicated control channel, and then performing the intermittent control process again. Transmission method. Intermittent control to intermittently transmit a reverse pilot signal and a power control bit according to a predetermined interruption rate in a control holding state; Continuously transmitting a message of the reverse dedicated control channel when a message for transmitting through the dedicated control channel of the reverse link is activated in the intermittent control process; A code division multiple access communication system comprising transmitting the reverse pilot signal and power control bits of slots within a corresponding frame period after transmitting a message of the dedicated control channel, and then performing the intermittent control process again in a next frame period. Intermittent transmission method of a mobile station. Intermittent control to intermittently transmit a reverse pilot signal and a power control bit according to a predetermined interruption rate in a control holding state; Transmitting the reverse pilot signal in a preamble and continuously transmitting a message in the reverse dedicated control channel when a message for transmitting through the dedicated control channel of the reverse link is activated in the intermittent control process; A code division multiple access communication system comprising transmitting the reverse pilot signal corresponding to at least one slot to a post-amble after transmitting a message of the dedicated control channel, and then performing the intermittent control process again in a next frame period. Intermittent transmission method of a mobile station. Inspecting power control information intermittently received from a forward dedicated control channel; Code division multiple access for intermittently intermittently transmitting the reverse pilot signal and the power control bit according to a predetermined interruption rate in a control holding state, and setting and transmitting the power of the transmitted reverse pilot signal by the received power control information. Intermittent transmission method of a mobile station in a communication system. 29. The method according to claim 28, wherein the received power control information is received in the same pattern as the reverse pilot signal and the power control bit interruption pattern. Intermittently intermittently transmitting a reverse pilot signal and a power control bit according to a predetermined interruption rate in a control holding state, and setting and transmitting power of the transmitted reverse pilot signal by power control information received through a forward dedicated control channel; Process, When the message for transmission through the dedicated control channel of the reverse link is activated in the intermittent control process, a message of the reverse dedicated control channel is transmitted after the pilot signal and the power control bit, which are generated first after the control message is activated, are transmitted. And transmit the reverse pilot signal and the power control bit continuously while transmitting a message of the dedicated control channel and transmit the power of the transmitted reverse pilot signal and the power control bit to the forward dedicated control channel. Setting by the power control information received through; An intermittent transmission method of a mobile station in a code division multiple access communication system comprising re-executing the intermittent control process after transmitting the message on the dedicated control channel. Intermittently intermittently transmits a reverse pilot signal and a power control bit according to a predetermined interruption rate in a control holding state, and transmits the power of the transmitted reverse pilot signal and the power control bit by a power control information received through a forward dedicated control channel. Setting up and sending When the message for transmission through the dedicated control channel of the reverse link is activated in the intermittent control process, a message of the reverse dedicated control channel is transmitted after the pilot signal and the power control bit, which are generated first after the control message is activated, are transmitted. And transmit the reverse pilot signal and the power control bit continuously while transmitting a message of the dedicated control channel and transmit the power of the transmitted reverse pilot signal and the power control bit to the forward dedicated control channel. Setting by the power control information received through; Transmitting the reverse pilot signal and the power control bit corresponding to at least one slot after transmitting the message of the dedicated control channel, and then performing the intermittent control process again. Transmission method. Intermittently intermittently transmits a reverse pilot signal and a power control bit according to a predetermined interruption rate in a control holding state, and transmits the power of the transmitted reverse pilot signal and the power control bit by a power control information received through a forward dedicated control channel. Setting up and sending When the message for transmission through the dedicated control channel of the reverse link is activated in the intermittent control process, a message of the reverse dedicated control channel is transmitted after the pilot signal and the power control bit, which are generated first after the control message is activated, are transmitted. And transmit the reverse pilot signal and the power control bit continuously while transmitting a message of the dedicated control channel and transmit the power of the transmitted reverse pilot signal and the power control bit to the forward dedicated control channel. Setting by the power control information received through; A code division multiple access communication system comprising transmitting the reverse pilot signal and power control bits of slots within a corresponding frame period after transmitting a message of the dedicated control channel, and then performing the intermittent control process again in a next frame period. Intermittent transmission method of a mobile station. Intermittently intermittently transmits a reverse pilot signal and a power control bit according to a predetermined interruption rate in a control holding state, and transmits the power of the transmitted reverse pilot signal and the power control bit by a power control information received through a forward dedicated control channel. Setting up and sending In the intermittent control process, when the message for transmission through the dedicated control channel of the reverse link is activated, the reverse pilot signal is transmitted to the preamble, and then the message of the reverse dedicated control channel is continuously transmitted. Simultaneously transmitting the reverse pilot signal and the power control bit in a message transmission period and simultaneously setting the power of the transmitted reverse pilot signal and the power control bit by the power control information received through the forward dedicated control channel; and, A code division multiple access communication system comprising transmitting the reverse pilot signal corresponding to at least one slot to a post-amble after transmitting a message of the dedicated control channel, and then performing the intermittent control process again in a next frame period. Intermittent transmission method of a mobile station. Checking power control information located in a slot of a corresponding mobile station among power control information transmitted intermittently from the forward shared power control channel; Intermittently intermittently transmitting the reverse pilot signal and the power control bit according to a predetermined interruption rate in a control holding state, and setting and transmitting the power of the transmitted reverse pilot signal and the power control bit by the received power control information Intermittent transmission method of a mobile station in a code division multiple access communication system. A dedicated control channel signal generator for generating a power control bit for controlling the transmission power of the reverse link according to a predetermined interruption rate and outputting it as a dedicated control channel signal; And an intermittent controller configured to intermittently control the intermittent power control bit to intermittently transmit the power control bits in a control holding state. The method of claim 35, wherein the dedicated control channel signal generator, An orthogonal modulator for orthogonally spreading the power control bits with an orthogonal code assigned to the dedicated control channel; And an interrupter configured to interrupt the orthogonal spread power control bits by the output of the interrupt controller. 37. The intermittent transmission apparatus of a base station of a code division multiple access communication system according to claim 36, wherein the intermittent controller intermittently controls the intermittent controller to transmit at an interruption rate 1/2. The intermittent transmission apparatus of a base station of a code division multiple access communication system according to claim 36, wherein the intermittent controller intermittently controls the intermittent controller to transmit at an interruption rate of 1/4. Generating a power control bit for controlling the transmission power of the reverse link according to a predetermined interruption rate in the control holding state; A method of transmitting power control bits of a base station of a code division multiple access communication system comprising intermittent control to intermittently transmit the generated power control bits. 40. The method of claim 39, wherein the intermittent controller intermittently controls the intermittent controller to transmit at an interruption rate of 1/2. 40. The method of claim 39, wherein the intermittent controller intermittently controls the intermittent controller to transmit at an interruption rate of 1/4.