JPH104584A - Wireless channel setting control method - Google Patents

Abstract

(57) Abstract: The present invention relates to a wireless channel setting control method for restricting access to a carrier for direct communication between slave units, and an object of the present invention is to significantly reduce running costs. SOLUTION: The mobile station includes a plurality of mobile stations and a base station, and each mobile station includes a selected communication mode and a local station identification information indicating a communication partner in a first communication mode in accordance with own station identification information. Notifying means for notifying information to the base station, and standby control means for restricting or canceling standby of the selected communication mode in response to a response to the notification, and the notifying means notifies the base station of the notification. Storage means for capturing the communication mode and the own station identification information and storing the former in association with the latter, and similarly notified own station identification information and other station identification information, which are individually associated with the storage means. Response means for determining whether both of the communication modes stored and stored are the first communication mode, and transmitting a response indicating the result to the mobile station indicated by the own-station identification information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio channel setting control method for controlling access of a mobile station to a carrier for direct communication between slave units under the initiative of a base station in a digital cordless telephone system.

[0002]

2. Description of the Related Art In recent years, digital cordless telephone systems for easily providing portable telephones to homes, offices, and outdoors have been put into practical use.
For the Handyphone System), the call quality is good and the call charge is low under the convergence of digital mobile communication technology, and it can be used intensively in the office environment. For a long time, services have been launched by multiple carriers.

FIG. 8 is a diagram showing a basic configuration of a PHS. In the figure, the wireless base stations 61 _{1 to} 61 _M are exchanges 6
Is connected to a public network 63 via a 2, the mobile station 64 ₁ to 64 _N is located in the radio zone formed by these wireless base stations 61 ₁ to 61 _M. In the PHS having such a configuration, each of the mobile stations 64 ₁ to 64 _N is connected to an office mode operated as a digital cordless telephone in a general home or a cordless terminal for an office installed in an office, and to an outdoor, underground shopping mall, or other public office. It has a public mode operated as a mobile phone terminal that can access a public network in space, and a transceiver mode that enables direct communication with another mobile station without passing through a radio base station.

[0004] In the following, the office mode and the public mode have no technical relevance to the present invention, and therefore the description thereof will be omitted. Further, in the transceiver mode, ten “carriers for direct communication between slave units” to be allocated to the above-described call for direct communication are reserved in advance. As shown in FIG. 9, eight time slots T ₁ to T ₁
T ₄ , which is time-divided into frame units consisting of R _{1 to} R ₄ ,
Form two full-duplex lines in parallel. In the following,
For simplicity, these time slots recognized by the originating mobile station are denoted by subscripts “T ₁ ”
“T ₄ ”, “R ₁ ” to “R ₄ ” are given and indicated. On the contrary, these time slots which are similarly recognized by the mobile station on the receiving side are respectively appended with the suffixes “r ₁ ” to “r”. ₄ ",
“T ₁ ” to “t ₄ ” are shown.

Furthermore, among the mobile station 64 ₁ to 64 _N, for example, when the mobile station 64 ₁ performs a call directly sent to the mobile station 64 _2, first these mobile stations, performed by the operator The mode shifts to the transceiver mode based on the instruction. In such a transceiver mode, the mobile stations 64 ₁ , 64 ₂
Driving power is supplied to the receiver asynchronously (see FIG. 10).
(1) and (1) ′), the above-described 10 waves of “carriers for direct communication between slave units” are continuously received.

[0006] Further, when the mobile station 64 ₁ transmits a signal in response to an instruction given by the operator, the mobile station 64 ₁ selects another of the eight time slots formed in the “carrier for direct communication between slave units”. The one not acquired (accessed) by any of the calls (hereinafter referred to as "time slot _RK ") is determined based on the electric field strength and the like, and the time slot T corresponding to the time slot under the above-described frame configuration is determined.
During the period _K, a paging signal (including identification information of the destination mobile station) consisting of a predetermined bit string is transmitted (FIG. 10 (2)). The transmitting unit mounted on the mobile station 64 ₁ is supplied with driving power only during the period in which such transmission is performed, and the transmission attempt is performed by all of the opposing destination mobile stations 64 _2. In order to secure a time for determining whether or not a call signal is received for the “direct communication carrier between slave units”, the process is repeated for a maximum of 10 seconds until a synchronization signal described later is received.

Further, the mobile station 64 _1, the receiving unit is above time slot T individually receiving operation time slot R _K which spaced 2.5ms corresponding to half the length of the frame to the possible timing _K Driven by On the other hand, the mobile station 64 ₂ receives the above-mentioned paging signal (FIG. 10).
(3)) and, indexing the duration of a time slot R _K mobile stations 64 ₁ facing the point as a starting point to then receive the signal transmitted to the mobile station (FIG. 10 (4)), the received The synchronization signal is transmitted during the time slot.

That is, with respect to such a synchronization signal, the mobile station 64 ₂ transmits with respect to the time when the mobile station 64 ₁ transmits.
Since There are transmitted under the synchronization to take autonomous, the mobile station 64 ₁ can smoothly received without further synchronization.
When the mobile station 64 ₁ receives and recognizes the synchronization signal, the mobile station 64 ₁ transmits a synchronization signal indicating the reception through the time slot T _K of the subsequent frame in the same manner as the above-described paging signal (FIG. 10 ( Five)).

When the mobile station 64 ₂ receives and recognizes the synchronization signal, it outputs a ringing tone by driving hardware (not shown) (FIG. 10 (6)). When the operator answers, the mobile station 64 ₂ stops outputting the ringing tone (FIG. 10 (7)) and sends a response signal to the subsequent time slot t _K (FIG. 10 (8)). Then, after capturing the time slot t _K in the subsequent frame and the above-described time slot r _K (T _K ) as a full-duplex communication channel, the mobile station shifts to the communication state.

When the mobile station 64 ₁ receives the above-mentioned response signal, the mobile station 64 ₁ similarly captures the time slot R _K and the time slot T _K as a full-duplex communication channel, and then shifts to a communication state.

[0011]

However, in such a conventional example, the source mobile station repeats the call signal without confirming that the destination mobile station has shifted to the transceiver mode. Transmitting consumes a lot of power, especially when the terminating mobile station has not transitioned to transceiver mode, wasting power every time the calling operation is performed repeatedly.

[0012] In addition, since the called mobile station cannot predict the “carrier for direct communication between slave units” in which the calling signal addressed to the own station is received, it is necessary to receive the calling signal in order to reliably receive the calling signal. The drive power was supplied to the unit at a large time rate, and much power was consumed even in the standby state. Further, when a plurality of mobile stations asynchronously transmit to the same mobile station as a destination, the calling signal is not regulated at all in the mobile station of which transmission operation is performed with a delay. It is highly likely that much power will be consumed completely unnecessarily because it is transmitted repeatedly without using.

An object of the present invention is to provide a radio channel setting control method capable of greatly reducing running costs in a transceiver mode without lowering service quality.

[0014]

FIG. 1 is a block diagram showing the principle of the present invention.

According to the first aspect of the present invention, there is provided a first communication mode in which unique identification information is individually assigned and a radio communication path is directly formed with a communication partner, and a radio communication control and call processing. Any of the second communication modes to which the wireless channel is dynamically allocated below is appropriately selected, and the plurality of mobile stations 11 ₁ performing standby and outgoing / incoming / outgoing calls based on a signaling method adapted to the selected communication mode. ~ 11 _N ,
A radio zone is formed in an area where a plurality of mobile stations 11 _{1 to} 11 _N can be located, and, among these mobile stations, radio line control and and a base station 12 that performs call processing, the plurality of mobile stations 11 ₁ to 11 _N, and a local station identification information indicating the selected communication mode and the own station, the communication mode is the first communication mode In the case of, the notifying means 13 for notifying the base station 12 of a combination to which other station identification information indicating another mobile station that can be a call partner is added, and the response transmitted by the base station 12 to the notification. And a standby control unit 14 for restricting or canceling the standby in the communication mode selected according to the binary information indicated by the response. The storage unit 15 that fetches the communication mode and the own-station identification information notified as a combination and stores the communication mode in association with the own-station identification information, the own-station identification information notified as a combination by the notifying unit 13, and other information. With respect to the station identification information, it is determined whether or not both the communication modes individually associated with the storage means 15 are the first communication mode, and a response indicating the result as binary information is transmitted to the own station. Response means 16 for transmitting to the mobile station corresponding to the identification information.

According to a second aspect of the present invention, there is provided a first communication mode in which unique identification information is individually assigned and a wireless communication path is directly formed with a communication partner, and a wireless communication control and call processing. Any of the second communication modes to which the wireless channel is dynamically allocated below is appropriately selected, and the plurality of mobile stations 11 ₁ performing standby and outgoing / incoming / outgoing calls based on a signaling method adapted to the selected communication mode. ~ 11 _N ,
A radio zone is formed in an area where a plurality of mobile stations 11 _{1 to} 11 _N can be located, and, among these mobile stations, radio line control and and a base station 12 that performs call processing, the plurality of mobile stations 11 ₁ to 11 _N, and a local station identification information indicating the selected communication mode and the own station, the communication mode is the first communication mode In the case of, the notifying means 13 for notifying the base station 12 of a combination to which other station identification information indicating another mobile station that can be a call partner is added, and the response transmitted by the base station 12 to the notification. And a standby control unit 14 for restricting or canceling the standby in the communication mode selected according to the binary information indicated by the response. The storage unit 15 that fetches the communication mode and the own-station identification information notified as a combination and stores the communication mode in association with the own-station identification information, the own-station identification information notified as a combination by the notifying unit 13, and other information. Regarding the station identification information, whether the communication modes individually associated with and stored in the storage means 15 are both the first communication mode, and whether a call has not occurred at a mobile station to which other station identification information has been assigned. Response means 21 for determining whether or not the response has been made, and transmitting a response indicating the result as binary information to the mobile station corresponding to the own station identification information.

According to a third aspect of the present invention, in the wireless channel setting control method according to the first or second aspect,
The response means shall include means for suspending the determination of a false result among the determination results until all the results are confirmed to be false for a predetermined time or number of times. It is characterized by. According to a fourth aspect of the present invention, in the wireless channel setting control method according to any one of the first to third aspects, the response means includes the notification means 13.
The mobile station to which the self-station identification information and the other-station identification information notified as a combination have been allocated is randomly determined as a source and a destination, and the result is included in a response. Means to obtain the result of the decision included in the response by the response means, and make a call if the result indicates the source, and conversely, if the result indicates the destination, include means for withholding the call. Features.

According to a fifth aspect of the present invention, in the wireless channel setting control system according to any one of the first to third aspects, the local station identification information notified as a combination by the notifying means 13 and the other station For the identification information, there is provided an outgoing / incoming mode storage means 31 for storing an outgoing / incoming mode indicating the origin and destination of the preceding call, and the responding means transmits / receives the own station identification information and the other station identification information. The standby control means 14 includes a means for acquiring the outgoing / incoming call modes stored in the mode storage means 31, exchanging these outgoing / incoming / receiving modes to determine the source and destination, and including the result in a response. Means to obtain the result of the decision included in the response by the response means, to make a call if the result indicates the source, and to refrain from transmitting if the result indicates the destination Characterized in that it contains.

A wireless channel according to the first aspect of the present invention.
In the channel setting control method, the mobile station 11 ₁~ 11_NPrepared for
Notification means 13 when updating the communication mode.
The selected communication mode and the local station assigned to the local station.
And the communication mode is the first communication mode.
If it is a mobile phone, contact the other mobile station
Combination to which the assigned other station identification information is added
Notification to the base station. In the base station 12, storage means 15
Is the communication mode notified as such a combination
And own station identification information, and correspond to the own station identification information
And the communication mode is stored. Further, response means 1
6 is the own station identification similarly notified as a combination.
In the storage means 15 in association with the information and the other station identification information.
Refers to the stored communication mode, and these communication modes
In addition to determining whether both are in the first communication mode,
The local station identification information is returned as binary information indicating the result as a response.
To the mobile station corresponding to. Mobile station 11₁~ 1
1_NOf the above, the notifying means 13 notifies the base station 12
In the mobile station that has notified the synchronization, the standby control unit 14
Transmitted from the response means 16 as a response to the notification.
Refers to the binary information, and the binary information matches the communication mode
If not, change to standby mode.
Regulations, and show that they agree
Release the system or allow the system to enter standby mode.

That is, it has been confirmed that the mobile stations 11 _{1 to} 11 _N have shifted to the first communication mode together with their own mobile stations under the initiative of the base station 12. Only in such a case, the transition to the standby state in the first communication mode is allowed, and the incoming call can be answered and transmitted based on the same radio line control procedure as in the conventional example. As compared with the conventional example in which the transition to the standby state is allowed without any confirmation, unnecessary power consumption for the response and the transmission is greatly reduced.

In the wireless channel setting control system according to the second aspect of the present invention, the response means 21
In addition to the fact that both the communication modes stored in the storage means 15 are individually associated with the own-station identification information and the other-station identification information notified as a combination by the first communication mode, the other-station identification information 2. The radio channel according to claim 1, wherein it is determined that no call has occurred at the mobile station to which the mobile station is assigned, and binary information as a result of the determination is transmitted as a response to the mobile station. Different from the setting control method. Since the operation of the other components is the same as that of the first aspect, the description thereof will be omitted.

[0022] That is, the mobile station 11 ₁ to 11 _N, for the other party to become should another mobile station, proceeds with its own station to the first communication mode, and that not any occurring call is confirmed Only in such a case, the transition to the standby state in the first communication mode is allowed, so the same allowance was made simply when it was confirmed that the transition to the first communication mode was made. Compared with the invention described in 1,
Power consumption due to unnecessary standby and transmission is suppressed.

In the wireless channel setting control method according to the third aspect of the present invention, in the wireless channel setting control method according to the first or second aspect, the response means indicates that the result of the determination is false. With respect to the result of, the determination is suspended until all the results are confirmed to be false for a predetermined time or number of times. Therefore, a notification transmitted by the mobile station attempting to shift to the first communication mode due to a change in the transmission characteristics of the wireless transmission path formed between the mobile station and the base station 12 and a response to the notification. Is not transmitted normally, or even when the base station is overloaded with respect to call processing and radio channel control, unnecessary power consumption is accurately suppressed.

According to a fourth aspect of the present invention, in the wireless channel setting control method according to any one of the first to third aspects, the responding means is notified by the notifying means 13. The mobile station to which the assigned own-station identification information and the other-station identification information are assigned is randomly set as a source and a destination, and the results are included in a response. In the mobile station, the standby control unit 14 obtains the result of the setting included in the response in this way, and makes a call if the result indicates the source, and conversely, if the result indicates the destination, Refrain from calling.

That is, in the first communication mode, the mobile stations to be the communication partners with each other are dynamically designated as a source and a destination under the initiative of the base station to perform radio line control. The difference in power consumed between the original mobile station and the destination mobile station is reduced.

According to a fifth aspect of the present invention, in the wireless channel setting control method according to any one of the first to third aspects, the transmission / reception mode storage means 21 includes For the own-station identification information and the other-station identification information notified by the means 13, the transmission / reception mode indicating the source and destination of the preceding call is stored. The response means obtains the calling / calling mode stored in the calling / calling mode storage means 21 with respect to the own station identification information and the other station identification information, and exchanges the calling / calling mode to determine the source and destination. And incorporate the result into the response. The standby control unit 14 obtains the result of the decision included in the response in this manner, makes a call when the result indicates the caller, and withholds the call when the result indicates the destination. .

That is, in the first communication mode, the mobile stations that are to communicate with each other perform radio line control as a source and a destination alternately under the initiative of the base station. The difference in power consumption between the mobile station and the destination mobile station is compressed with high accuracy.

[0028]

Embodiments of the present invention will be described below in detail with reference to the drawings.

The features of each of the embodiments described below are as follows.
Wireless channel setting control procedure to be performed
The procedures for call processing performed by the switching center
Figure 8 shows the hardware configuration of the exchange and the exchange.
Since this is the same as the conventional example, its description is omitted here.
You. Note that the present embodiment and the block diagrams shown in FIGS.
For the corresponding relationship, the mobile station 64₁~ 64_NMeans notification
13 and mobile station 11 including standby control means 14 ₁~
11_N, The radio base station 61₁~ 61_MAnd exchange
62 is storage means 15, response means 16, 21 and outgoing / incoming
This corresponds to the base station 12 including the mode storage unit 31.

FIG. 2 is a diagram for explaining the operation of the embodiment according to the first to fifth aspects of the present invention. FIG. 3 is an operation flowchart of the mobile station. FIG. 4 is an operation flowchart of the exchange. Hereinafter, the operation of the embodiment according to the first and second aspects of the present invention will be described with reference to FIGS. It is assumed that the source and destination mobile stations are mobile stations 64 ₁ and 64 ₂ for simplicity in the same manner as in the conventional example.

The exchange 62 has a subscriber class 41 of the mobile stations 64 ₁ to 64 _N as a database. The database includes “mobile station identification information” indicating each mobile station and a transceiver as shown in FIG. A unique “call number” assigned in advance as a destination in the mode is included. Further, as shown in FIG.
Each of these mobile stations is associated with the “mobile station identification information”, and the “communication mode” described above, the “communication partner call number” indicating the mobile station to be the communication partner in the transceiver mode, and the transceiver mode It has a direct call management table 51 between child devices, in which a "preceding call mode" indicating whether the preceding completed call was the source or destination is stored.

When each of the mobile stations 64 ₁ to 64 _N shifts to the transceiver mode, as shown in FIG. 7A, the mobile station 64 ₁ to 64 _N receives the call number of its own station (here, “000000000000”).
Suppose "1". )) Along with the "party call number (here," 0000 "
000000010 ". )), And transmits the “mode notification” to the wireless base station in the wireless zone where the own station is located (FIG. 2 (1), FIG. 3 (1)).

In the following, control information including such a “mode notification”, which is provided for a series of radio channel setting control described later, uses the same frame as the “direct communication carrier between slave units”. Although the transmission and reception are performed via the “dedicated cell channel” SCCH to which the configuration is applied, since the acquisition and access procedures related to the “dedicated cell channel” are known, the description thereof is omitted here. I do.

Further, the above-described "party call number" has been designated by the operator of the mobile station 64 ₁ to 64 _N, for the "call number of its own station" which was assigned in advance to the mobile station is there. When receiving the “mode notification”, the radio base station gives the contents to the exchange 62. Note that the radio base station 61 ₁ to 61 _M performs radio channel setting control by sending and receiving the above-mentioned control information including "mode notification" respectively mutually and mobile stations located in the radio zone of own station to form, In the process, an interface between the wireless transmission path and the exchange 62 is established.
However, the control information of the interface is different from the known control information, but the processing procedure is basically the same as that of the conventional example. Therefore, the detailed description is omitted here for simplicity.

When recognizing such a mode notification (FIG. 2 (2)), the exchange 62 searches the database using the "call number of its own station" included in the mode notification as a search key. "Mobile station identification information" included in the subscriber class corresponding to the above is obtained (FIG. 4 (1)). Here, for simplicity, it is assumed that the “mobile station identification information” is “A1”.

Further, the exchange 62 uses the "mobile station identification information" as a search key to directly call the telephone
1 is searched, and the "communication mode" of the record corresponding to the search key is set to "transceiver mode" (FIG. 4 (2)), and the "calling party calling number" is set to "other party calling number". (FIG. 4 (3)). In addition, exchange 6
2 obtains “mobile station identification information” included in the subscriber class corresponding to the search key by searching the database using the “other party call number” as a search key, and substitutes the “mobile station identification information”. A search is performed in the direct call management table 51 between handset units as a search key (FIG. 4 (4)).

Further, the exchange 62 sets "transceiver mode" in the "communication mode" obtained under such a search, and sets the "call number of its own station" (= " 0000000000001 ") is determined, and the process waits while repeating the same determination at a predetermined frequency until the result becomes true (FIG. 4 (5)).

In addition to the setting of the “communication mode” and the “calling party call number” in the direct communication management table 51 between the slave units, the exchange 62 determines the destination of the (Mode notification) issued by the mobile station 64 ₂ of FIG.
(2) '), so a detailed description thereof will be omitted here. In the following, for the sake of simplicity, the “call number of the own station” and the “call number of the other party” included in the “mode notification” issued by the mobile station 64 ₂ are each “0000000000”.
It is assumed that "mobile station identification information" is "A2", which is "010" and "0000000000001" and registered in the database for the mobile station.

When the result of the judgment processing performed as described above in response to the “mode notification” individually issued by the mobile stations 64 ₁ and 64 ₂ is true, the exchange 62 checks these mobile stations 64 _1. , 64 ₂ corresponding to the “preceding call mode” registered in the direct call management table 51 between the slave units.
The caller and the receiver are set as a combination in which one or both of them are reversed, and the call mode (indicating either the caller or the receiver) indicating the result of the setting is updated to the "preceding call mode" Set as a value.

Further, the exchange 62 sets a "mode shift acceptance notification" including such outgoing / incoming modes individually (FIG. 7 (b)).
Is generated and transmitted to the mobile station that is the transmission source of the above-mentioned “mode notification” (FIGS. 2 (3) and (3) ′, FIG. 4 (6)). The mobile stations 64 ₁ and 64 ₂
After transmitting the above-mentioned "mode notification", it waits while determining whether or not such a "mode shift reception notification" is received (FIG. 3 (2)), and the result of the determination is true. When this is recognized, the display unit (not shown) displays that the communication mode has been switched to the transceiver mode. Further, the mobile stations 64 ₁ and 64 ₂ identify whether the transmission / reception mode included in the “mode transition acceptance notification” is the source or destination, and individually as the source and destination. Then, the mode automatically shifts to the transmission mode or the reception mode (FIGS. 3 (3) and (3) '). Note that the procedure of the wireless channel setting control in such an outgoing call mode or incoming call mode (FIG. 2)
(4) and FIG. 3 (4)) are the same as the conventional example.
Here, the description is omitted.

As described above, according to the present embodiment, a combination of mobile stations designated as a communication partner of a call related to a direct call between slave units is registered in the exchange 62 and managed collectively. Standby and transmission in the transceiver mode are only allowed. Therefore, unnecessary power consumption is greatly reduced as compared with the conventional example in which individual mobile stations are allowed to perform standby and transmission without any limitation, and transmission and reception between the transmission source and the destination are performed. The standby timing and the standby timing are appropriately adjusted, and the efficiency of the wireless channel setting control is improved.

In each of the above-described embodiments, in addition to the fact that the mobile station to be the communication partner has shifted to the transceiver mode, the condition that the mobile station to be the communication partner of the mobile station is its own station is set. While waiting and transmitting in the transceiver mode are permitted below, the present invention is not limited to such a condition. For example, a condition in which a mobile station to be a communication partner has shifted to the transceiver mode together with the own station. May be applied, or an additional condition that no call has occurred at the mobile station may be added.

The operation of this embodiment according to the third aspect of the present invention will be described below with reference to FIGS. In the present embodiment, the exchange 62 includes mobile stations 64 ₁ ,
By performing the processing based on the same procedure as the embodiment of the invention according to claim 1 in accordance with the "mode notification" emitted individually from 64 _2, and the slave unit corresponding to these mobile stations In the direct call management table 51, "transceiver mode" is set as the "communication mode", and it is determined whether the "calling party calling number" is set to the calling number of the mobile station to be the calling party. (FIGS. 4 (1) to (5)).

The exchange 62 starts a timer at a predetermined interval (for example, equivalent to 10 frames in the above-described frame configuration) at the time of starting the determination (FIG. 4A). ). Although not illustrated, such a timer may be realized by software. Further, the exchange 62 determines in parallel with the determination process whether or not the count value of the corresponding timer has reached the final value (FIG. 4 (b)), and if the result is true, The update of the direct call management table 51 between handset units performed earlier is invalidated (FIG. 4 (c)), and the “mode rejection notification” shown in FIG. 7 (c) is directed to the corresponding mobile station. It is transmitted (FIG. 4 (d)). If the result of the above-described determination becomes true before such a count value reaches the final value, the exchange 62 regulates the time counting of the timer, and corresponds to the invention described in claim 1. Subsequent processing (FIG. 4 (6),...) Similar to the embodiment is performed.

On the other hand, after transmitting the above-mentioned “mode notification”, the mobile stations 64 ₁ and 64 ₂ determine whether or not such a “mode rejection notification” is received (FIG. 3 ( a) After waiting and recognizing that the result of the determination is true, a display (not shown) indicates that the communication mode cannot be switched to the transceiver mode (FIG. 3).
(b)).

As described above, according to the present embodiment, it is reliably detected that a combination of mobile stations that are to be communication partners with each other is not registered in the inter-child-unit direct call management table 51 within a predetermined period, and Since this is notified to the mobile station, the "mode notification" may not be transmitted normally due to fluctuations in the transmission characteristics of the radio transmission path formed between these mobile stations and the base station. However, unnecessary power consumption is greatly reduced in the same manner as in the embodiment corresponding to the first aspect of the invention, and the transmission and standby timings between the source and the destination are adjusted with high accuracy, and the wireless communication is performed. The efficiency of channel setting control is improved.

Hereinafter, the operation of this embodiment according to the present invention will be described with reference to FIGS. 2 to 4 and FIG. In the present embodiment, the switch 62 is configured to transmit a call originating to a mobile station that has both shifted to the transceiver mode.
By referring to the "preceding call mode" registered in the direct call management table 51 between handset units, the transmission / reception mode is set based on the following procedure.

(1) The "preceding call mode" of one mobile station is the originator, and the "preceding call mode" of the other mobile station is
If is the destination, the transmission / reception mode is set by logically exchanging the two. (2) In other cases, an outgoing / incoming call mode is set in which one of the mobile stations is a source and the other mobile station is a destination.

As described above, according to the present embodiment, in the transceiver mode, the source and destination are set alternately with respect to the combination of mobile stations that are the communication partners, so that the power consumption of each mobile station is averaged. Is done. In the present embodiment, the “preceding call mode” is switched alternately. However, the present invention is not limited to such a configuration. For example, the switching can be performed randomly based on a random number or the like.

In this embodiment, the "preceding call mode" is updated, for example, when a completed call is recognized (a call is started) or when the completed call is terminated. Is also good. Furthermore, in each of the above-described embodiments, the initial setting of the contents of the inter-child-unit direct call management table 51 is not described at all.
This can be performed when a call generated in each mobile station in the transceiver mode disappears or when the communication mode shifts to a mode other than the transceiver mode.

In each of the above embodiments, the mobile station 6
4 ₁ to 64 _N have three communication modes including a transceiver mode. In addition to a communication mode in which direct communication between child devices is to be performed, at least one communication mode in which such direct communication between child devices is not performed. Can be applied to any mobile communication system if is appropriately selected and applied.

[0052] Further, in the embodiments described above, the mobile station is accessing the radio base station 61 ₁ to 61 _M and switch 62 in question prior to the start of the radio channel setting control relating to a call directly between the handset Nevertheless, these mobile stations are not charged at all, but the present invention is not limited to such a configuration, and the entity of the access (for example, the occupation time of the radio channel, the radio base station and the exchange) Any information may be applied as long as information suitable for the accounting system corresponding to the required processing amount is collected.

[0053]

As described above, according to the first aspect of the present invention, unnecessary power consumption in the first communication mode is significantly reduced as compared with the conventional example. Further, according to the second aspect of the present invention, unnecessary power consumption in the first communication mode is further reduced as compared with the first aspect of the present invention.

Further, according to the third aspect of the present invention, an attempt is made to shift to the first communication mode due to a change in transmission characteristics of a radio transmission path formed between the mobile station and the base station and the like. Even when the notification transmitted by the mobile station or the response to the notification is not transmitted properly, or when the base station is overloaded with call processing and radio circuit control, unnecessary power consumption is suppressed with high accuracy. Is done.

According to the fourth and fifth aspects of the present invention, in the first communication mode, the difference in power consumption between the source mobile station and the destination mobile station is reduced. Therefore,
In the digital cordless telephone system to which these inventions are applied, the running cost can be reduced and the continuous operation time can be increased by the driving power supplied from the battery without deteriorating the service quality and transmission quality. Flexible adaptation to various operation modes becomes possible.

[Brief description of the drawings]

FIG. 1 is a principle block diagram of the invention according to claims 1 to 5;

FIG. 2 is a diagram for explaining the operation of the embodiment according to the first to fifth aspects of the present invention;

FIG. 3 is an operation flowchart of a mobile station.

FIG. 4 is an operation flowchart of the exchange.

FIG. 5 is a diagram showing a configuration of a subscriber class.

FIG. 6 is a diagram illustrating a configuration of a direct call management table between slave units.

FIG. 7 is a diagram showing control signals transmitted and received between a radio base station and a mobile station.

FIG. 8 is a diagram showing a basic configuration of a PHS.

FIG. 9 is a diagram showing a frame configuration.

FIG. 10 is a diagram showing a procedure of a conventional radio line control for a direct telephone call between slave units.

[Description of Signs] 11,64 Mobile station 12 Base station 13 Notification means 14 Standby control means 15 Storage means 16,21 Response means 31 Calling / receiving mode storage means 41 Subscriber class 51 Direct communication management table between handset 61 Radio base station 62 exchange 63 public network

Claims (5)

[Claims] 1. A first communication mode in which unique identification information is individually assigned and a radio communication path is directly formed with a communication partner, and a radio channel is dynamically controlled under radio channel control and call processing. Any one of the second communication modes assigned to the mobile station is appropriately selected, and a plurality of mobile stations that perform standby and outgoing / incoming calls based on a signaling method adapted to the selected communication mode; A radio zone is formed in a possible area, and among these mobile stations, a base station that performs the radio channel control and the call processing for calls individually generated by the mobile station that has selected the second communication mode. The plurality of mobile stations include the selected communication mode and own station identification information indicating the own station, and when the communication mode is the first communication mode, Move Notification means for notifying the base station of a combination obtained by adding other station identification information indicating a station; capturing a response transmitted by the base station with respect to the notification; and responding to the binary information indicated by the response. And a standby control unit for restricting or canceling the restriction on standby in the selected communication mode, wherein the base station captures the communication mode and the own station identification information notified as the combination by the notifying unit. Storage means for storing the communication mode in association with the own station identification information; and self-station identification information and other station identification information notified as the combination by the notifying means, individually associated with the storage means. It is determined whether both of the communication modes stored and stored are the first communication mode, and the result is indicated as the binary information. Response means for transmitting a response to a mobile station corresponding to the own station identification information. 2. A first communication mode in which unique identification information is individually assigned and a wireless communication path is directly formed with a communication partner, and a wireless channel is dynamically controlled under wireless line control and call processing. Any one of the second communication modes assigned to the mobile station is appropriately selected, and a plurality of mobile stations that perform standby and outgoing / incoming calls based on a signaling method adapted to the selected communication mode; A radio zone is formed in a possible area, and among these mobile stations, a base station that performs the radio channel control and the call processing for calls individually generated by the mobile station that has selected the second communication mode. The plurality of mobile stations include the selected communication mode and own station identification information indicating the own station, and when the communication mode is the first communication mode, Move Notification means for notifying the base station of a combination obtained by adding other station identification information indicating a station; capturing a response transmitted by the base station with respect to the notification; and responding to the binary information indicated by the response. And a standby control unit for restricting or canceling the restriction on standby in the selected communication mode, wherein the base station captures the communication mode and the own station identification information notified as the combination by the notifying unit. Storage means for storing the communication mode in association with the own station identification information; and self-station identification information and other station identification information notified as the combination by the notifying means, individually associated with the storage means. The communication modes stored and stored are both the first communication mode, and other mobile stations to which the station identification information is allocated. Response means for determining whether or not a call has occurred and transmitting a response indicating the result as the binary information to a mobile station corresponding to the own station identification information. Channel setting control method. 3. The wireless channel setting control method according to claim 1, wherein the response means determines that the result of the determination is false in a predetermined time or number of times. A wireless channel setting control method including means for suspending determination until all results are false. 4. The wireless channel setting control method according to claim 1, wherein the responding means includes: the own station identification information and the other station identification information notified as a combination by the notifying means. Includes a means for randomly setting the mobile station to which is assigned as a source and a destination, and including the results in a response.The standby control means obtains the result of the setting included in the response by the response means. , Make a call if the result indicates the originator,
On the other hand, a wireless channel setting control method characterized by including means for withholding transmission when a destination is indicated. 5. The wireless channel setting control method according to claim 1, wherein the local station identification information and the other station identification information notified as a combination by the notification means are set to a preceding call. A calling / sending mode storage means for storing a calling / sending mode indicating a source and a destination of the mobile station; and the response means, wherein the own station identification information and the other station identification information are stored in the calling / sending mode storage means. Means for acquiring the transmission / reception mode and exchanging these transmission / reception modes to determine the source and the destination and incorporating the results in a response. The standby control means includes a response by the response means. Get the result of the decision contained in, and if the result indicates the source, make a call,
On the other hand, a wireless channel setting control method characterized by including means for withholding transmission when a destination is indicated.