Scheme for intermittent reception of paging signals in mobile communication system

BACKGROUND THE INVENTION

FIELD OF INVENTION

The present invention relates to a scheme for intermittent Receiving paging signals in a mobile communication system, in which a receiver circuit a mobile station is operated intermittently to the battery power consumption at the mobile station in a state of waiting for paging signals to reduce by a base station so that the mobile station intermittently the paging signals from a base station receives. The present invention also refers to a base station apparatus and a mobile station apparatus, which to implement this scheme for intermittent reception suitable of paging signals in a mobile communication system are.

DESCRIPTION THE BACKGROUND ART

To the perform of intermittent reception of paging signals at the mobile station in a mobile communication system, the mobile stations in groups divided and each mobile station identifies a control channel, in accordance with the this Mobile station assigned group is determined, and a paging channel (PCH) in this control channel to the intermittent reception Only by receiving the paging channel (PCH) of their own group to realize.

According to the grouping the mobile station in the digital mobile communication system called PDC (Personal Digital Cellular) which is currently used in Japan, be a frequency number (a radio channel position number) I_F and a PCH group number I_P to the Specifying a control channel and a paging channel to identify defined by the mobile station, as follows: <st32:df xmlns:st32="http://lighthouseip.com/">n '= (n - 1) mod (N<st32:sub>C</st32:sub>· N<st32:sub>P</st32:sub>) + 1</st32:df><st32:df xmlns:st32="http://lighthouseip.com/">I<st32:sub>F</st32:sub> = (N '- 1) modN<st32:sub>C</st32:sub> + 1</st32:df><st32:df xmlns:st32="http://lighthouseip.com/">I<st32:sub>P</st32:sub> = [(N '- 1) / N<st32:sub>C</st32:sub>] + 1</st32:df>where n is an ID information Mobile station is, N_C a number of control channels within a zone (cell), N_P a number of PCH groups within a control channel (superframe), and [X] is the maximum X not border integer called.

As concrete example, the grouping in the case of using three control channels, such as in <figref idrefs="S46">1</figref> shown will be described. in<figref idrefs="S46">1</figref> are three control channels by their frequency numbers (slots) F₁ (S), F₂ (S), and F₃ (5) identified so that N_C = 3. The paging channels (PCH) be in nine groups P₁ to P₉ divided up, and a number of PCH groups within each control channel is N_P = 3. In this case, for the mobile station ID Information n = 9, may the frequency number I_F and the PCH group number I_P are calculated as follows. <st32:df xmlns:st32="http://lighthouseip.com/">n '= (9-1) mod (3 × 3) + 1 = 9</st32:df><st32:df xmlns:st32="http://lighthouseip.com/">IF = (9-1) mod (3 + 1) = 3</st32:df><st32:df xmlns:st32="http://lighthouseip.com/">IP = [(9-1) / 3] + 1 = 3</st32:df>

consequently is the control channel used by this mobile station, the third F₃ (S), and the PCH group of mobile station This control channel is the third P₉, Therefore, it is sufficient for this mobile station to intermittently the paging channel P₉ the ninth group received alone.

With In other words, the mobile station in the first group according to their Mobile station is divided ID information has the paging channel P₁ the first group alone intermittently received and in the paging channel P₁ contained Paging signals identify, the mobile station, the ID in the second group according to their mobile station information is located, has the paging channel P₂ of the the second group received intermittently and in the paging channel P₂ identify contained paging signals and so on. Note that in<figref idrefs="S46">1</figref> B to Broadcast channel (BCCH) is, and SC the signaling control channel (SCCH) for represents the cell-specific information.

As described above is the ON / OFF timing of a receiver circuit the mobile station for In the event of intermittent reception within a 720 ms superframe, formed by 36 frames, specified as shown in part (a) of <figref idrefs="S47">2</figref> shown. In the PDC, the reception time of the paging signals in time slots divided and the 3-channel TDMA is used so that in <figref idrefs="S47">2</figref> of the Broadcast Channel (BCCH) (represented by B in <figref idrefs="S47">2</figref>) two Timeslots occupied and the paging channel (PCH) (represented by Pin code <figref idrefs="S47">2</figref>) Of the mobile station in a specific group is located, provided with a broadcast these channels following timeslot becomes.

By Grouping within such a superframe, the mobile station switches the power of the receiver circuit only during a corresponding to the broadcast channel B and a period of time, which the paging channel P's own group corresponds, ON, as in Part (b) of <figref idrefs="S47">2</figref> shown, only to the paging signals to receive intermittently within the paging channel P.

&lt;?page 3?&gt;

in this case, a time rate of switching ON the power of the receiver circuit the mobile station, that is, the intermittent rate, in the form of a Number of BCCH time slots A_b and a Number of PCH timeslots A_P as follows added: <st32:df xmlns:st32="http://lighthouseip.com/">Intermittent Rate = (A<st32:sub>P</st32:sub> + A<st32:sub>b</st32:sub>) × 20/720 = (1 + 2) × 20/720 = 0.083</st32:df>

On smaller value of this intermittent rate, meaning the power ON time rate, implies a smaller rate the consumption of the battery power of the mobile station.

As described above, the mobile station reduces battery power consumption by performing the intermittent reception of the paging signals, but at the battery power consumption further reduce, it is necessary, the above-described intermittent Rate as small as possible to make, and from the perspective of a user's mobile station there still needed for a further reduction of battery power consumption.

<patcit><text>US 5491718</text></patcit> discloses a CDMA radiotelephone with optimized slot mode and a long code operating. For this purpose, the radio telephone includes a receiver for Receiving a paging channel transmission, a system time pseudo-noise generator and a Entspreizungsschaltungsanordnung with the recipient input coupled to the despreading of during at least part the assigned slot received paging channel transmission. The assigned slot is predetermined, three times the duration of a rollover period of the system time pseudo noise generator and to have four times the duration of one frame. Therefore, the Duty cycle of the CDMA radio telephone when operating in a slotted Pagingmodus reduced.

<patcit><text>EP 0687078 A2</text></patcit> describes a system for transmitting packet data in TDMA radio telephone systems. The number of time slots in the TDMA frame for packet transmission varies according to transmission needs, and each logical channel in from corresponding time slots consecutive TDMA frame consists, is independent of the other logical channels.

SUMMARY THE INVENTION

it is therefore an object of the present invention, a scheme for intermittent reception of paging signals in a mobile communication system provide that capable is, the intermittent rate of the intermittent reception even smaller making than previously possible has been to reduce the consumption of the battery power of the mobile station as much as possible to reduce.

On Another object of the invention is to provide a base station apparatus and a mobile station apparatus for the realization of the scheme for intermittent reception of paging signals in a mobile Communication system according to the present Invention are also suitable.

This Object is achieved by a method of intermittent reception of Paging signals achieved with the features of independent claim 1.

In addition, this goal by a base station device having the characteristics of claim 15 and by a mobile station device with the Properties of claim 17 reaches.

advantageous embodiments are in the dependent claims described.

According to a Aspect of the present invention, a method for intermittently receiving of paging signals in a mobile communication system formed by Mobile stations is formed, which in a plurality of groups and base stations are grouped, provided that the steps comprising: repeatedly transmitting a frame from each base station, wherein the frame includes: at least a regular Reception section having a plurality of paging indication regions having the provided corresponding to the plurality of groups be, in which a paging presence information to display a presence a paging with respect to a mobile station of a group in a Paging indication region is set corresponding to the group, when a paging occurs with respect to a mobile station of the group; and a mobile station alarm section, a plurality of Identifikationsinformationseinstellbereichen including that corresponding to the plurality of paging indication regions are provided in which an identification information of a Mobile station due to an indicated by a paging indication region Paging is, according to an identification information setting the paging indication region is set; and receiving the frame to each mobile station by intermittently operating a Receiver circuit one each mobile station.

According to a another aspect of the present invention, a base station apparatus provided for use in a mobile communication system formed by mobile stations is formed, which in a plurality of groups and base stations are grouped and in which each mobile station in&lt;?page 4?&gt;termittierend paging signals receives, of each base station by operating a receiver circuit of a transmitted each mobile station be, with the base station apparatus comprising: a regular reception section forming circuit for forming at least one regular reception section of a to be transmitted Frame, wherein the at least one regular reception section comprises a plurality comprising of paging indication areas corresponding to the plurality are provided by groups, and in which a paging Präsenzeinformation to display a presence a paging with respect to a mobile station of a group in a Paging indication region is set corresponding to the group, if paging occurs with respect to a mobile station of the group; a mobile station alarm section forming circuit for forming a Mobile station alarm portion of the frame, wherein the mobile station alarm section a having plurality of Identifikationsinformationseinstellbereichen, the provided corresponding to the plurality of paging indication regions are, and in which an identification information of a mobile station, the displayed by a by a paging indication region Paging is called, in an identification information setting is set according to the paging indication region; and a transmission circuit for forming the frame by combining the at least one regular reception section and the mobile station alarm section, and repeated transmitting the Frame as the paging signals to the mobile stations.

According to a another aspect of the present invention, a mobile station apparatus provided for use in a mobile communication system formed by mobile stations is formed in a plurality of groups and base stations are grouped, in which each base station repeatedly transmits a frame, which contains: (1) at least one regular Receiving portion having a plurality of paging indication regions, that are provided corresponding to the plurality of groups, in which a paging presence information in a paging indication region for View a presence a paging with respect to a mobile station of a group according to the Group is set when a paging with respect to a mobile station the group occurs; and (2) a mobile station alarm portion having a plurality of Identifikationsinformationseinstellbereichen, the provided corresponding to the plurality of paging indication regions are, in the identification information of a mobile station, by a by a paging indication region displayed paging is called, in an identification information setting is set according to the paging indication region; said Mobile station device comprising: a battery for providing power; a receiver circuit for Receiving the frame, he received from each base station is, and obtaining information in the paging indication region and an information in the identification information setting through Supplies If the power provided by the battery becomes; and a reception ON / OFF judging circuit for intermittently operating the receiver circuit and for receiving an information in at least one paging indication region corresponding to a group to which the mobile station device belongs, by selectively supplying the receiver circuit with power from the battery, while a time period, the at least one paging indication region in the Priority Receiving portion of the frame corresponds, and when the information in the at least one paging indication region the paging presence information is intermittent operation of the receiver circuit to a Access to information in an identification information setting, carried out according to the at least one paging indication region, by selected Provide the receiver circuit with power from the battery, while a period of time, the said one identification information setting corresponds to the mobile station alarm portion of the frame; and a Control circuit for receiving the information in the identification information setting, by the receiver circuit get is, and Run a paging connection processing when the information in the Identification information setting identification information the mobile station device includes.

Other Features and advantages of the present invention are prepared by the following description taken in conjunction with the accompanying drawings be obvious.

SHORT DESCRIPTION THE DRAWINGS

<figref idrefs="S46">1</figref> is a diagram showing exemplary control channels for explaining a grouping of mobile stations shows in a conventional mobile communication system.

<figref idrefs="S47">2</figref> is a diagram showing a configuration of a superframe and intermittent Reception timings in a conventional mobile communication system shows.

<figref idrefs="S48">3</figref> is a diagram showing a configuration of a superframe in the first embodiment of the present invention.

<figref idrefs="S49">4</figref> is a block diagram of a base station for transmitting the superframe from <figref idrefs="S48">3</figref> in the first embodiment of the present inventions&lt;?page 5?&gt;tion.

<figref idrefs="S50">5</figref> is a block diagram of a mobile station for receiving the superframe from <figref idrefs="S48">3</figref> in the first embodiment of the present Invention.

<figref idrefs="S51">6</figref> is a flowchart for the intermittent reception operation of the mobile station of <figref idrefs="S50">5</figref> in of the first embodiment of the present invention.

<figref idrefs="S52">7</figref> is a diagram showing a configuration of a superframe in the second embodiment of the present invention.

<figref idrefs="S53">8</figref> is a diagram showing a configuration of a superframe in the third embodiment of the present invention.

<figref idrefs="S54">9</figref> is a flowchart for the intermittent reception operation of the mobile station in the third embodiment of the present invention.

<figref idrefs="S55">10</figref> is a diagram showing a configuration of a superframe in the fourth embodiment of the present invention.

<figref idrefs="S56">11</figref> is a flowchart for the intermittent reception operation of the mobile station in the fourth embodiment of the present invention.

<figref idrefs="S57">12</figref> is a diagram showing a configuration of a superframe and intermittent Reception timings in the fifth embodiment of the present invention.

<figref idrefs="S58">13</figref> is a diagram showing a configuration of a sixth multiframe in the embodiment of the present invention.

<figref idrefs="S59">14</figref> is a diagram showing an exemplary configuration of a superframe according to the present Invention for explaining the intermittent rate improvement effect of the present Invention.

<figref idrefs="S60">15</figref> is a diagram showing a configuration of a superframe and intermittent reception timings in the seventh embodiment of the present invention.

<figref idrefs="S61">16</figref> is a diagram showing a configuration of a superframe and intermittent reception timings in the eighth embodiment, of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With in reference to <figref idrefs="S48">3</figref> to <figref idrefs="S51">6</figref> going to happen now the first embodiment the scheme for intermittent reception of paging signals in a mobile communication system according to the present invention described in detail.

<figref idrefs="S48">3</figref> shows a configuration of a superframe on a physical channel for providing a downward (Engl .: downlink) control channel for alerting, from a base station to a mobile station in the first embodiment should be sent. This superframe from <figref idrefs="S48">3</figref> essentially comprises one regular reception section <figref>1</figref> and a mobile station alarm section <figref>3</figref>, The regular reception section<figref>1</figref> has a plurality (N in this embodiment) of paging indication regions, while the mobile station alarm section <figref>3</figref> a plurality (N in this embodiment) of identification information setting ranges <figref>7</figref> in accordance with a plurality of paging indication regions <figref>5</figref> of the regular reception section <figref>1</figref> has.

The to be used in the mobile communication system of this embodiment Mobile stations are in a plurality (N in this embodiment) divided by groups similar as in the description of the background art section from above described. Here, the grouping can be similar as in a case of the PDC, as described above, made, but if desired, instead use any other suitable way of grouping will.

in a case in the <figref idrefs="S48">3</figref> As shown, the mobile stations are divided into N groups and N paging indication regions <figref>5</figref>That the Priority receiving section <figref>1</figref> form, be in accordance with these N Groups provided. A Pagingpräsenzinformation will definitely Paging indication region <figref>5</figref> set (or set) if a paging to a mobile station a respective group happens to an occurrence of a paging to a mobile station of the group display.

Especially, when a paging to an entity belonging to the first group mobile station occurs which is Pagingpräsenzinformation to the paging indication region <figref>5</figref> set for this first group. When a paging to an entity belonging to the second group mobile station occurs, the Pagingpräsenzinformation is as to the paging indication region <figref>5</figref> for this second group set and so on. If to a paging to a the Nth group belonging Mobile station occurs, then, according to the Pagingpräsenzinformation to the paging indication region <figref>5</figref> ge for this Nth group&lt;?page 6?&gt;puts.

one Note here that for the Pagingpräsenzinformation displaying an occurrence of a paging sufficient so that the Pagingpräsenzinformation one can be very short. For example, the Pagingpräsenzinformation be represented by a bit.

on the other hand are N identification information setting ranges <figref>7</figref>That the Mobile station alarm section <figref>3</figref> form, in accordance with a plurality of paging indication regions <figref>5</figref> of Priority receiving section <figref>1</figref> provided, and when the Pagingpräsenzinformation to a certain paging indication region <figref>5</figref> is set is an identification information of a mobile station with respect to which the displayed by the Pagingpräsenzinformation Paging occurred, the identification information setting <figref>7</figref> correspondingly the certain paging indication region <figref>5</figref> set.

Especially, when a paging with respect one belonging to the first group Mobile station occurs and the Pagingpräsenzinformation to the paging indication region <figref>5</figref> for the first Group is set, an identification information of a mobile station, in terms of which occurred paging, on the identification information setting <figref>7</figref> for this first group according to the paging indication region <figref>5</figref> for this first group set as the paging signal. Similarly, when a paging respect one belonging to the second group Mobile station occurs and the Pagingpräsenzinformation to the paging indication region <figref>5</figref> for this second group is set, an identification information of a mobile station, in terms of which occurred paging, on the identification information setting <figref>7</figref> for this second group corresponding to the paging indication region <figref>5</figref> for this second group set and so on. When a paging with respect to a belonging to the N-th group Mobile station occurs and the Pagingpräsenzinformation to the paging indication region <figref>5</figref> for this Nth Group is set, according to an identification information a mobile station, with respect to which occurred paging, on the identification information setting <figref>7</figref> for this Nth group corresponding to the paging indication region <figref>5</figref> for this Nth Group set.

The superframe in a configuration of <figref idrefs="S48">3</figref>, as above described, is repeatedly transmitted from a base station. then receives a mobile station in a waiting state this superframe and judges according to the received superframe, if a paging for the mobile station is present or not.

More accurate is the mobile station for periodically receiving only the paging indication region <figref>5</figref>, Of this to this Mobile station belonging own group equivalent of the regular reception section <figref>1</figref> This superframe configured and decides whether to this Pagingpräsenzinformation received paging indication region <figref>5</figref> is set or not. If the Pagingpräsenzinformation this received paging indication region <figref>5</figref> set is receiving Next, the mobile station only the identification information setting <figref>7</figref>. of these belonging to this mobile station's own group corresponds, of the mobile station alarm section <figref>3</figref> This superframe and receives Paging signal by extracting the identification information Mobile station from that received identification information setting <figref>7</figref>, If the extracted identification information, the identification information the mobile station itself, the mobile station detects a paging event.

one Note that the mobile station is configured, the mobile station alarm section <figref>3</figref> not at all receiving, when the mobile station receives the paging indication region <figref>5</figref> receives the belonging to that mobile station own group equivalent, and no Pagingpräsenzinformation in this paging indication region <figref>5</figref> present, so that it this mobile station is sufficient, only the paging indication region <figref>5</figref>. corresponding to the mobile station belonging to this own group, in the absence of Pagingpräsenzinformation, So if there is no paging is present to receive. Consequently, the Power of the receiver circuit the mobile station only during a the paging indication region <figref>5</figref> time period corresponding Is turned ON, so that the intermittent rate is very low, and therefore as far as possible reduce the battery consumption of the mobile station can be.

On the other hand, even when a paging is present, the mobile station has only the paging indication region <figref>5</figref> and the identification information setting <figref>7</figref> correspondingly belonging to that mobile station received own group. Consequently, the power of the receiver circuit is the mobile station only during Time periods that this paging indication region <figref>5</figref> and identification information setting <figref>7</figref> correspond, Is turned ON, so that the intermittent rate is still very low, and therefore as far as possible reduce the battery consumption of the mobile station can be.

Now is on with respect <figref idrefs="S49">4</figref> and <figref idrefs="S50">5</figref> a configuration a base station for repeatedly transmitting the superframe as described above and a configuration of a mobile station for receiving the superframe described above described.

<figref idrefs="S49">4</figref> shows a configuration of a base station according to this first Embodiment.

&lt;?page 7?&gt;

These Base Station <figref idrefs="S48">3</figref> has a control circuit <figref>11</figref> to the Receiving the paging signal from an upper level station and calculating a Group number of a called mobile station from a called mobile station identification information in the received paging signal during the total operation control a base station. Of the control circuit<figref>11</figref> calculated Group number is for a regular Receiving portion forming circuit <figref>13</figref> and a mobile station alarm portion forming circuit <figref>15</figref> provided, while the called mobile station identification information also for the mobile station alarm portion forming circuit <figref>15</figref> provided.

Of the regular Receiving portion forming circuit <figref>13</figref> constitutes Pagingpräsenzinformation in the paging indication region <figref>5</figref> of the regular reception section <figref>1</figref> correspondingly that of the control circuit <figref>11</figref> supplied group number, a signal for the Priority receiving section <figref>1</figref> of the superframe to form. Insertion the Pagingpräsenzinformation in the paging indication region <figref>5</figref> will establish, for example, by "1" bits in a paging indication region <figref>5</figref> performed while other Paging indication regions <figref>5</figref> "0" bits are set.

Of the Mobile station alarm section forming circuit <figref>15</figref> puts of the control circuit <figref>11</figref> provided identification information the called mobile station in the identification information setting <figref>7</figref> of Mobile station alarm section <figref>3</figref> corresponding to that of the Control circuit <figref>11</figref> supplied group number, while all other Identifikationsinformationseinstellbereiche <figref>7</figref> are set to "0", a signal for the mobile station alarm section <figref>3</figref> of the superframe to build.

The of the regular Reception section forming circuit <figref>13</figref> signal formed for the Priority Receiving section and from the mobile station alarm section forming circuit <figref>15</figref> formed signal for the mobile station alarm section <figref>3</figref> be a super frame forming circuit <figref>17</figref> delivered. This superframe forming circuit <figref>17</figref> combined delivered regular receiving section <figref>1</figref> and the mobile station alarm section delivered <figref>3</figref> together, to the superframe in a configuration of <figref idrefs="S48">3</figref> to build.

Of the of the super-frame forming circuit <figref>17</figref> About frame formed is to a transmission circuit <figref>19</figref> delivered, which the coding and modulation processing on the supplied superframe points out, a radio transmission signal to create. This radio transmission signal is then amplified by an amplifier circuit <figref>21</figref> strengthened and to the mobile stations from an antenna <figref>23</figref> transfer. Note that in the generation of the radio transmission signal at the transmitting circuit <figref>19</figref> it should be apparent that the signal is generated in such a way that these groups with all "0" bits in the mobile station alarm section <figref>3</figref> of the superframe are not transferred.

<figref idrefs="S50">5</figref> shows a configuration of the mobile station according to this first embodiment.

These Mobile station of <figref idrefs="S50">5</figref> has a control circuit <figref>31</figref> to the Controlling an overall operation of the mobile station and a memory <figref>33</figref> to the Save the own mobile station identification information and other necessary information. The control circuit<figref>31</figref> read the own mobile station identification information from the memory <figref>33</figref> from when the power of the mobile station is turned ON and calculates a group number of serviceable group of the own mobile station identification information. The calculated Group number then becomes a reception ON / OFF judging circuit <figref>41</figref> delivered.

These Mobile station of <figref idrefs="S50">5</figref> also has an antenna <figref>37</figref> to the Receiving the radio signal from the base station. The antenna of this<figref>37</figref> received Signal to a receiver circuit <figref>35</figref> delivered, which the demodulation and Decoding processing on of the antenna <figref>37</figref> supplied received signal performs, to the superframe to generate from the received signal. The receiver circuit<figref>35</figref> provides the superframe timing and the signal for the Priority receiving section <figref>1</figref> of the superframe to the reception ON / OFF judging circuit <figref>41</figref> during delivery of the signal for the mobile station alarm section <figref>3</figref>, That is the identification information the called mobile station in the mobile station alarm section <figref>3</figref>. of the superframe to the control circuit <figref>31</figref>,

Of the Reception ON / OFF judging circuit <figref>41</figref> judged a On / off the power supply to the receiver circuit <figref>35</figref> and controls a switch <figref>43</figref>To the power supply of a battery to the receiver circuit <figref>35</figref> via the switch <figref>43</figref> to control. If the power of the mobile station is turned ON, controls the reception ON / OFF judging circuit <figref>41</figref> as the switch <figref>43</figref>, So that the receiver circuit <figref>35</figref> on the switch <figref>43</figref> in the ON state is set, and the super-frame timing of by the receiver circuit <figref>35</figref> received superframe is to the reception ON / -OFF judgment circuit <figref>41</figref> delivered. also assesses the reception ON / OFF judging circuit <figref>41</figref> on timing for the relevant paging indication region <figref>5</figref> of the regular reception section <figref>1</figref> and a timing for the &lt;?page 8?&gt;relevant identification information setting <figref>7</figref> of Mobile station alarm section <figref>3</figref> with respect to the superframe timing at which the Power supply to the receiver circuit Is turned ON to be corresponding to that of the control circuit <figref>31</figref> received Group number. Then, the reception ON / OFF judging circuit controls<figref>41</figref> the switch <figref>43</figref> when the judged timing of the relevant paging indication region <figref>5</figref> of Priority receiving section <figref>1</figref>To the power from the battery <figref>45</figref> to the receiver circuit <figref>35</figref> on the switch <figref>43</figref> provide and thus the receiver circuit <figref>37</figref> in to set the ON state, whereas the receiver circuit <figref>35</figref> in the OFF state is set at other timings.

Of the Reception ON / OFF judging circuit <figref>41</figref> namely, the Power from the battery <figref>45</figref> via the switch <figref>43</figref> to the receiver circuit <figref>35</figref> ready at the timing of the group number provided within the regular receiving section <figref>1</figref> corresponding paging indication region <figref>5</figref>. to the receiver circuitry <figref>35</figref> in the ON state for receiving the paging indication region <figref>5</figref> to set, and then judges whether the Pagingpräsenzinformation in this paging indication region <figref>5</figref> of Priority receiving section <figref>1</figref> of the receiver circuit <figref>35</figref> provided is or not.

Just then when decided (or judged) is that the Pagingpräsenzinformation in this paging indication region <figref>5</figref> of the regular reception section <figref>1</figref> of the superframe is provided, controls the reception ON / OFF judging circuit <figref>41</figref> the switch <figref>43</figref> again at the timing of Identifikationsinformationseinstellbereichs <figref>7</figref>. of the supplied group number within the mobile station alarm section <figref>3</figref> corresponds, the power from the battery <figref>45</figref> to the receiver circuit <figref>35</figref> on the switch <figref>43</figref> provide and thus the receiver circuit <figref>35</figref> in the ON state for receiving this Identifikationsinformationseinstellbereichs <figref>7</figref> to set. The received information of Identifikationsinformationseinstellbereichs<figref>7</figref>, the called the paging signal indicating mobile station identification information, is applied to the control circuit <figref>31</figref> delivered.

If the identification information of the own mobile station in this Information of Identifikationsinformationseinstellbereichs <figref>7</figref> found is judged, the control circuit <figref>31</figref>That a paging in terms of this mobile station is present and continues with the paging connection processing continued.

Further generating a to the receiver circuit <figref>35</figref> attached Spreading code generating circuit <figref>39</figref> the spreading code, the in the receiver circuit <figref>35</figref> conducted demodulation is used. The spreading code generating circuit<figref>39</figref> travels with the generation of spreading codes continues also while the power of the receiver circuit <figref>35</figref> Switched off is such that the synchronization can be established as soon as the power of the receiver circuit <figref>35</figref> Is turned ON is. The spreading code generating circuit<figref>39</figref> also leads the adaptation of the spreading code generation timing with respect to the receiver circuit <figref>35</figref> during a Period of time by, in the receiver circuit <figref>35</figref> in the ON state is:

As next is with reference to the flowchart of <figref idrefs="S51">6</figref> the operation the mobile station of <figref idrefs="S50">5</figref> described.

According to <figref idrefs="S51">6</figref> activated the mobile station the receiver circuit <figref>35</figref> by Providing the power supply from the battery <figref>45</figref> to the receiver circuit <figref>35</figref> on the switch <figref>43</figref> under the control of the reception ON / OFF judging circuit <figref>41</figref> just while a time period corresponding to the paging indication region <figref>5</figref>, The obtained from the mobile station identification information group number corresponds to the regular receiving section <figref>1</figref> About the frame to the information this Paging indication region <figref>5</figref> receiving (step <figref>110</figref>).

then the mobile station judges whether the received information of the paging indication region <figref>5</figref> of Priority receiving section <figref>1</figref> equal to "1" or (step <figref>120</figref>).

If the received information of the paging indication region <figref>5</figref> of Priority receiving section <figref>1</figref> not equal to "1", this implies that no Pagingpräsenzinformation present so that the mobile station alarm section <figref>3</figref> of not superframe is received (step <figref>130</figref>), And the next superframe is expected during the Receiver circuit <figref>35</figref> in the OFF state remains.

If the received information of the paging indication region <figref>5</figref> of Priority receiving section <figref>1</figref> equal to "1", this implies that a Pagingpräsenzinformation present so the receiver circuit <figref>35</figref> in the ON state is set to the information of the Identifikationsinformationseinstellbereichs <figref>7</figref> of Mobile station alarm section <figref>3</figref> to receive, of this Paging indication region <figref>5</figref> (step <figref>140</figref>). If the own mobile station identification information in the received information the Identifikationsinformationseinstellbereichs <figref>7</figref> found is, it is then decided that a paging with respect to the own mobile station present.

Referring on <figref idrefs="S52">7</figref> is now the two&lt;?page 9?&gt;th embodiment of the scheme for intermittent reception of a paging signal in a mobile communication system according to the present described invention in detail.

<figref idrefs="S52">7</figref> shows a configuration of a superframe according to the second embodiment, resulting in the configuration of <figref idrefs="S48">3</figref> therein differs in that a plurality of regions in each paging indication region <figref>5</figref> of Priority receiving section <figref>1</figref> provided. The rest of these configuration <figref idrefs="S52">7</figref> is identical to that of <figref idrefs="S48">3</figref>,

in the superframe from <figref idrefs="S52">7</figref> Namely, each Paging indication region <figref>5</figref> of Priority receiving section <figref>1</figref> formed by three sections, so that the paging indication region <figref>5</figref> for the first group of three regions <figref>1a</figref>. <figref>1b</figref> and <figref>1c</figref> includes. Also includes the paging indication region <figref>5</figref> for the second group three regions <figref>2a</figref>. <figref>2 B</figref> and <figref>2c</figref> and so on. correspondingly includes the paging indication region <figref>5</figref> for the Nth group three regions Na, Nb and Nc.

By the use of this formed from a plurality of regions Paging indication region <figref>5</figref> is recordable as possible to assess whether according to the majority decision set based on a number of in this plurality of regions Pagingpräsenzinformationen paging respect occurred the corresponding group or not. It is thus possible to decide that a paging with respect the corresponding group occurred when at least one Pagingpräsenzinformation is set in the plurality of regions. Consequently, the reliability the regular receiving section <figref>1</figref> by using this from a Majority formed by areas paging indication region <figref>5</figref> improved will.

If for example, the Pagingpräsenzinformation is given by a "1" bit, and bits in the three the paging indication region <figref>5</figref> forming Areas "111" are, may decide be that a paging is present, so that the mobile station controlled is also the mobile station alarm section <figref>3</figref> to receive the super frame. If the bits in the three the paging indication region <figref>5</figref> forming Areas "101", ie, in the case of two "1" bits, for example, be decided in accordance with the majority decision paging is present. When bits in the three the paging indication region<figref>5</figref> forming Areas "100", ie, in the case from a "1" bit, can, for example, be decided that no paging is present and a "1" bit is present because of an error, so that the mobile station is controlled, the mobile station alarm section <figref>3</figref> of the superframe not receive. Alternatively, it may be decided in a case of a "1" bit that a paging present to the reliability secure.

With in reference to <figref idrefs="S53">8</figref> and <figref idrefs="S54">9</figref> is now the third embodiment a scheme for intermittent reception of paging signals in a mobile communication system according to the present invention described in detail.

<figref idrefs="S53">8</figref> shows a configuration of a superframe according to the third embodiment, which differs from the configuration of <figref idrefs="S48">3</figref> therein differs in that three sets of regular receiving portions <figref>1a</figref>. <figref>1b</figref> and <figref>1c</figref> provided are, each regular Receiving section comprises a plurality of paging indication regions <figref>5</figref> includes. The rest of this configuration of <figref idrefs="S53">8</figref> is equal to that of <figref idrefs="S48">3</figref>,

in the superframe from <figref idrefs="S53">8</figref> Namely, a Plurality of paging indication regions <figref>5</figref> for each group provided in a plurality of regular reception sections such as the first regular receiving section <figref>1a</figref>, The second regular reception section <figref>1b</figref> and the third regular reception section <figref>1c</figref>, Using these plurality of paging indication regions <figref>5</figref> is it possible for example, to determine whether in accordance with the majority decision based on a number of in these plurality of paging indication regions <figref>5</figref> set Pagingpräsenzinformationen paging respect occurred the corresponding group or not. It is thus possible to decide that a paging with respect the corresponding group occurred when at least one Pagingpräsenzinformation in said plurality of paging indication regions <figref>5</figref> set is. Thus, similar as in a configuration of <figref idrefs="S52">7</figref>, the reliability the regular receiving section <figref>1</figref> by using these in a plurality of regular receiving portions <figref>1</figref> provided paging indication regions <figref>5</figref> improved will.

As next is with reference to the flowchart of <figref idrefs="S54">9</figref> the operation the mobile station in a case of using the superframe in a configuration of <figref idrefs="S52">7</figref> or <figref idrefs="S53">8</figref> described.

According to <figref idrefs="S54">9</figref> activated the mobile station the receiver circuit only during Durations of a plurality of paging indication regions <figref>5</figref> in a plurality of regular receiving portions <figref>1a</figref>. <figref>1b</figref> and <figref>1c</figref>, the received from the mobile station identification information group number comply, the super frame correspond to the information of these plurality of paging indication regions <figref>5</figref> to received (step <figref>210</figref>).

then the mobile station judges whether no less than a prescribed Number of received information of these plurality of paging indication regions <figref>5</figref> this Priority receiving portions <figref>1a</figref>. <figref>1b</figref> and <figref>1c</figref> equal to "1" or &lt;?page 10?&gt;not, that is the majority decision, if not less than a prescribed number of received Information have Pagingpräsenzinformation or not (step <figref>220</figref>).

If not less than a prescribed number of the received information said plurality of paging indication regions <figref>5</figref> this Priority receiving portions <figref>1a</figref>. <figref>1b</figref> and <figref>1c</figref> not equal to "1", the mobile station alarm section <figref>3</figref> of the superframe not received (step <figref>230</figref>), And the next superframe is expected during the Receiver circuit <figref>35</figref> in OFF state remains.

If not less than a prescribed number of the information the plurality of paging indication regions <figref>5</figref> the regular reception sections <figref>1a</figref>. <figref>1b</figref> and <figref>1c</figref> equal to "1", the receiver circuitry is <figref>35</figref> in the ON state is set to the information of the Identifikationsinformationseinstellbereichs <figref>7</figref>. of these paging indication regions <figref>5</figref> corresponds to the mobile station alarm section <figref>5</figref> to recieve (Step <figref>240</figref>). If the own mobile station identification information in the received information of the Identifikationsinformationseinstellbereichs <figref>7</figref> found is, it is then decided that a paging with respect to the own mobile station present.

at this processing, a rate for surveys of paging for the mobile station lower by the use of a smaller prescribed number be made so that a secure implementation of the paging processing possible becomes. Also, a probability for the reception of the Identifikationsinformationseinstellbereichs by an error by using a larger prescribed number be made lower so that the avoidance of wasteful Consumption of the battery power is possible.

Referring on <figref idrefs="S55">10</figref> and <figref idrefs="S56">11</figref> is now the fourth embodiment a scheme for intermittent reception of a paging signal in a mobile communication system according to the present described invention in detail.

<figref idrefs="S55">10</figref> shows a configuration of a superframe according to the fourth embodiment, which to the configuration of <figref idrefs="S48">3</figref> therein differs in that two sets of regular receiving portions <figref>1a</figref> and <figref>1b</figref> to be provided, each regular Receiving section comprises a plurality of paging indication regions <figref>5</figref> includes, and a plurality of regions in each paging indication region <figref>5</figref> provided will. The rest of this configuration of<figref idrefs="S55">10</figref> is identical to that of <figref idrefs="S48">3</figref>, In other words, the fourth embodiment is a hybrid of the second embodiment from <figref idrefs="S52">7</figref> and the third embodiment of <figref idrefs="S53">8</figref>. as described above.

in the Priority receiving portions <figref>1a</figref> and <figref>1b</figref> of the superframe from <figref idrefs="S55">10</figref> Namely decided when all bits in three regions of the paging indication region <figref>5</figref> of first regular receiving section <figref>1a</figref> equal to "1", that the paging with respect the corresponding group occurred, so that the mobile station controlled is, the mobile station alarm section <figref>3</figref> to recieve. If all bits in three regions of the paging indication region <figref>5</figref> of the first Priority receiving section <figref>1a</figref> not equal to "1", is also the paging indication region <figref>5</figref> the second regular reception section <figref>1b</figref> receive. In a general case of using a plurality of regular reception sections the receipt of regular Receiving section for a Plurality of times repeatedly until all bits in three regions of Paging indication region <figref>5</figref> have the same value.

If the end of the regular receiving portions is achieved, which was found without that all Bits in three regions of the paging indication region <figref>5</figref> the same have value, the mobile station for a case when a secure allowed detection of paging be is controlled, the mobile station alarm section <figref>3</figref> while to receive, to at least one bit has a value "1". Alternatively, the mobile station in a case where it is desirable to improve the intermittent rate rather than the reliability, controlled be, the mobile station alarm section <figref>3</figref> not to receive, unless all bits have a value of "1".

As next is with reference to the flowchart of <figref idrefs="S56">11</figref> of the Operating the mobile station in a case of using the superframe in a configuration of <figref idrefs="S55">10</figref> described.

According to <figref idrefs="S56">11</figref> receives the Mobile station several bits in a plurality of regions of the paging indication region <figref>5</figref> of first regular reception section <figref>1a</figref> (Step <figref>310</figref>) and judges whether all these multiple bits have the same value or not (Step <figref>320</figref>).

If all these multiple bits have the same value, it is decided (or judges) whether all these multiple bits equal to "1" or not (step <figref>330</figref>), And when all these multiple bits equal to "1", the corresponding Mobile station alarm section <figref>3</figref> receiving the super frame (step <figref>340</figref>) whereas when all these multiple bits equal to "0", the mobile station alarm section <figref>3</figref> is not received (Step <figref>350</figref>).

&lt;?page 11?&gt;

As well it is judged if it is judged that all these multiple bits not the same value in step <figref>320</figref> have, whether the end the regular Reception sections is reached or not, and if not, multiple bits in a plurality of regions of the paging indication region <figref>5</figref> the next regular reception section <figref>1b</figref> receive (Step <figref>360</figref>) And the operation returns to step <figref>320</figref> back.

A Plurality of regular Reception sections in the superframe is sequentially received in this manner until it is determined, that all these multiple bits have the same value, or until the End of regular Reception sections in the superframe is reached, and the steps described above <figref>320</figref> to <figref>350</figref> will for each received regular Receiving section executed.

If has decided that the end of the regular reception sections in the superframe in step <figref>370</figref> is reached, it is judged whether not less as a prescribed number of bits in the paging indication regions <figref>5</figref> all previously received regular Receiving portions is equal to "1" or not (Step <figref>380</figref>). If this is so, it is decided that the paging occurred, so that the corresponding identification information setting <figref>7</figref> of Mobile station alarm section <figref>3</figref> is received (step <figref>390</figref>) whereas otherwise the mobile station alarm section <figref>3</figref> not is received (step <figref>400</figref>), And the next superframe is expected during the Receiver circuit <figref>35</figref> in the OFF state remains.

Referring on <figref idrefs="S57">12</figref> is the fifth embodiment a scheme for intermittent reception of paging signals in a mobile communication system according to the present Invention described in detail.

<figref idrefs="S57">12</figref> shows a configuration of a superframe according to the fifth embodiment, which differs from the configuration of <figref idrefs="S48">3</figref> therein differs in that a synchronization word (SW) <figref>6</figref> for obtaining synchronization directly at the start of the regular reception section <figref>1</figref> is inserted. The rest of this configuration of <figref idrefs="S57">12</figref> is identical to that of <figref idrefs="S48">3</figref>,

If the mobile station the regular receiving section <figref>1</figref> there is such a frame with the synchronization word (SW) <figref>6</figref> receives, as in a part (b) of <figref idrefs="S57">12</figref> stated is the receiver circuitry <figref>35</figref> of the Mobile station in the ON state not just at a timing of the corresponding paging indication region <figref>5</figref> of Priority receiving section <figref>1</figref>But also at a timing of the Synchronization word (SW) <figref>6</figref> set to the synchronization word (SW) <figref>6</figref> and the corresponding paging indication region <figref>5</figref> of regular reception section <figref>1</figref> to received and synchronization by using the received synchronization word (SW) <figref>6</figref> to compensate.

At the Receiving the repeatedly transmitted from the base station superframe Namely, it is for the mobile station necessary to have a timing for receiving the superframe which is always is synchronized, but a timing for receiving the superframe tends to be offset, when the mobile station moves and the propagation delay changed. To compensate for this timing offset, hence, the sync word (SW) <figref>6</figref> used in the known pattern in the superframe. If this synchronization word (SW) <figref>6</figref> in the known pattern is received, the mobile station decides that the timing right is, when the received pattern matches with the known pattern and is controlled, to the corresponding identification information setting <figref>7</figref> of Mobile station alarm section <figref>3</figref> by using a position this synchronization word (SW) <figref>6</figref> as a reference to receive.

Referring on <figref idrefs="S58">13</figref> Now, the sixth embodiment of a scheme for intermittent reception of a paging signal in a mobile communication system according to the present Invention described in detail.

<figref idrefs="S58">13</figref> shows a configuration of a superframe according to the sixth embodiment, which differs from the configuration in <figref idrefs="S48">3</figref> therein differs in that a synchronization word (SW) <figref>6</figref> directly before each paging indication region <figref>5</figref> of the regular reception section <figref>1</figref> and each identification information setting <figref>7</figref> of Mobile station alarm section <figref>3</figref> is inserted to the synchronization accuracy further to improve. The rest of this configuration of<figref idrefs="S58">13</figref> is identical to that of <figref idrefs="S48">3</figref>,

By Setting the synchronization word (SW) <figref>6</figref> with respect to each Receiving unit, this is each paging indication region <figref>5</figref> and each identification information setting <figref>7</figref> as in <figref idrefs="S58">13</figref> shown, it is possible to use the sync accuracy to improve. In a case of<figref idrefs="S57">12</figref> can For example, the timing during a time period between the reception of the synchronization word (SW) <figref>6</figref> and receiving the signal for the Nth group be offset, when the mobile station during this Time moved, because the signal for the N-th group of the sync word (SW) <figref>6</figref> in a configuration of <figref idrefs="S57">12</figref> quite is separated. In this regard, it is by the use of a configuration <figref idrefs="S58">13</figref> possible such a timing offset to compensate as well.

&lt;?page 12?&gt;

Now the effect on the improvement of intermittent Rate in the embodiments described above for an exemplary in <figref idrefs="S59">14</figref> Configuration shown illustrated in the the synchronization word (SW) <figref>6</figref> immediately prior to each paging indication region <figref>5</figref> of Priority receiving section <figref>1</figref> is inserted.

At the Calculating the intermittent rate for a case of using of the superframe from <figref idrefs="S59">14</figref> it is assumed that the signal format of PDC is used. The signal format of the PDC is specified as follows. 1 superframe = 36 frames 1 frame = 3 time slots 1 slot = 280 bits

In addition, a frame of a PDC superframe than the regular receiving section <figref>1</figref> set, while the other 35 frames as the mobile station alarm section <figref>3</figref> are set. The mobile station alarm section<figref>3</figref> has So he divided one frame per one group in 35 groups is. Also used the regular receiving section <figref>1</figref> the synchronization word (SW) <figref>6</figref> = 4 bits and each paging indication region <figref>5</figref> = 4 bits.

in this case, the minimum intermittent rate for a Case of no paging is given as follows. <st32:df xmlns:st32="http://lighthouseip.com/">Minimal intermittent rate = (4 bits + 4 bits) / (280 bits × time slots × 36 frames) = 2.64 × 10<st32:sup>-4</st32:sup></st32:df>

As well the intermittent rate in a case of a paging for a group in every ten superframes (7.2 seconds) is given as follows. <st32:df xmlns:st32="http://lighthouseip.com/">Intermittent rate = {(4 bits + 4 bits) × 10 superframe + 280 bits} / {280 bits × 3 Time slots × 36 frame × 10 superframe} = 1:19 × 10<st32:sup>-3</st32:sup></st32:df>

Compared with the intermittent rate of 0.083, the conventional in the PDC as described in the description of the background art section, can thus be seen that the intermittent rate drastically is improved according to the present Invention. For this reason, the present invention is to considerable reduction the consumption of the battery power of the mobile station capable.

With in reference to <figref idrefs="S60">15</figref> Now, the seventh embodiment of a scheme for intermittent reception of a paging signal in a mobile communication system according to the present Invention described in detail.

These seventh embodiment is an exemplary superframe configuration addressed in a case where a scheme for intermittent Receiving a paging signal according to the present Invention to signals for the coherent detection with interpolation in a coherent detection device, such as in Japanese patent application no. 6-140569 (1994) discloses, is applied.

at changing the mobile communication the propagation function of a propagation path to a great Dimensions in Conjunction with a movement of the mobile station and there is a need for the mobile station, the propagation function of the propagation path to appreciate at a high speed to the absolute phase the transmission carrier waves to obtain. To this end, pilot signals (PL) defined by the transmission side, the receiving side known symbols are given periodically in advance in the transmission signal inserted, and the mobile station at the receiving side estimates the propagation function of the propagation path by using these pilot signals (PL). In the above-mentioned Japanese patent application no. 6-140569 (1994) is the estimate of the propagation function by considering of the pilot signals (PL) as known symbols.

On Part (a) of <figref idrefs="S60">15</figref> shows a configuration of a superframe according to the seventh embodiment, in which the pilot signals described above (PL) <figref>9a</figref>. <figref>9b</figref>. <figref>9c</figref>. <figref>9d</figref> and so periodically in through the regular reception section and the mobile station alarm section according to the present invention formed superframe Embed be, and the propagation function of the propagation path is at a high speed by using these pilot signals (PL) is estimated, to the high speed variation of the propagation function to follow the propagation path.

in This superframe from <figref idrefs="S60">15</figref> be the paging indication region <figref>5a</figref> of the regular reception section for the first group and the identification information setting <figref>7N</figref> of Mobile station alarm section for the N-th group immediately behind the first pilot signal (PL) <figref>9a</figref> provided, the paging indication region <figref>5b</figref> of the regular reception section for the second Group and the identification information setting <figref>7a</figref> of Mobile station alarm section for the first group will be directly behind the second pilot signal (PL) <figref>9b</figref> provided, the paging indication region <figref>5c</figref> of the regular reception section for the third group and the identification information setting <figref>7b</figref> of Mobile station alarm section for the second group will be directly behind the third Pilotsi&lt;?page 13?&gt;signal (PL) <figref>9c</figref> provided and so on.

one Note that, in <figref idrefs="S60">15</figref> the paging indication region <figref>5</figref> of Priority Receiving section for each group and the identification information setting <figref>7</figref> of Mobile station alarm section for each group are not provided in succession, because the decoding the paging indication region <figref>5</figref> will not run immediately can.

Around the paging indication region <figref>5b</figref> the regular reception unit for the second receiving group, it is sufficient for the superframe from <figref idrefs="S60">15</figref> out, the control for turning ON the receiver circuit <figref>35</figref> of the Mobile station at timing of the pilot signal (PL) <figref>9b</figref> and this Paging indication region <figref>5b</figref> execute, as shown in a part (b) from <figref idrefs="S60">15</figref> indicated. Here is the paging indication region<figref>5b</figref> short and appears immediately behind the pilot signal (PL) <figref>9b</figref>. such that the of the pilot signal (PL) <figref>9b</figref> obtained estimation result for the Receiving the paging indication region <figref>5b</figref> is used.

in the case of a presence of a paging with respect to this second group then it is sufficient to control the ON-OFF of the receiver circuit <figref>35</figref> of the Mobile station at timing of the pilot signal (PL) <figref>9b</figref>, the Paging indication region <figref>5b</figref>, The pilot signal (PL) <figref>9c</figref>. the identification information setting <figref>7b</figref>and the pilot signal (PL) <figref>9d</figref> perform, the second to these Group are related, such as in a part (c) of <figref idrefs="S60">15</figref> indicated. Regarding the reception of the Identifikationsinformationseinstellbereichs <figref>7b</figref> will of both the pilot signal (PL) <figref>9c</figref> and the pilot signal (PL) 9d obtained estimation results used because the identification information setting <figref>7b</figref> long is.

With in reference to <figref idrefs="S61">16</figref> Now, the eighth embodiment of a scheme for intermittent reception of a paging signal in a mobile communication system according to the present Invention described in detail.

These eighth embodiment is also applicable to another exemplary superframe configuration for a directed case where a scheme for intermittent reception a paging signal according to the present Invention to signals for the coherent detection with interpolation in a coherent detection device, such as in Japanese patent application no. 6-140569 (1994) discloses, applied becomes.

On Part (a) of <figref idrefs="S61">16</figref> shows a configuration of a superframe according to the seventh embodiment, which differs from the configuration of <figref idrefs="S60">15</figref> therein discriminates that the paging indication regions <figref>5</figref> of the regular reception section and Identifikationsinformationseinstellbereiche <figref>7</figref> of Mobile station alarm section for two consecutive groups (first and second groups, third and fourth groups, fifth and sixth groups, and so on) between any two pilot signals (PL) <figref>9</figref> are provided. The rest of this configuration, from <figref idrefs="S61">16</figref> is identical to that of <figref idrefs="S60">15</figref>,

On Part (b) of <figref idrefs="S61">16</figref> shows timings for AN-turn the receiver circuit <figref>35</figref> of the Mobile station for a case when there is no paging with respect to two subsequent groups occurs while a part (c) of <figref>17</figref> Timings shows the AN-off the receiver circuit <figref>35</figref> of the Mobile station for a case in which a paging with respect to two subsequent groups present.

As described it in a scheme to intermittierenen reception a paging signal according to the present Invention possible to improve the intermittent rate drastically and consumption to reduce the battery power of the mobile station considerably, as with respect to <figref idrefs="S59">14</figref> illustrated. These effects may be similar for each the FDMA, TDMA and CDMA schemes that in the mobile communication system can be used to obtain will. However, it is possible especially for a case of CDMA, the intermittent rate by increasing a number of groups for grouping the mobile stations further improve because CDMA unrelated unlike FDMA and TDMA is to concepts of frequency and time, so that an increase in a Number of groups does not affect the radio channel capacity. In a would the case of TDMA namely, when a number of groups increases is used, as many time slots as an increased number of groups be and eventually would all radio channels be depleted, so not very much a number of groups elevated can be. For a case of CDMA, in contrast, the radio channel capacity by the amount of interference determined and a number of interference elevated not when the transmission of Identifikationsinformationseinstellbereiche for a group for which no Paging is present, is stopped, so that an increase in a number of groups produces no problem. When a number of groups is increased, is a frequency for receiving the mobile station alarm section of the superframe less, so that the present invention is even more effective for one Case of CDMA.

it should be noted that, besides those mentioned above, nor Many modifications and variations of the above embodiments can be generated, without the novel and advantageous features of the present invention abandon. Accordingly, it is intended to cover all such modifications and variations in the Area of &lt;?page 14?&gt;appended claims to include.