JPH1056665A - Radio equipment with radio call - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent degradation in reception sensitivity by eliminating noises produced during transmitting operation by stopping the operation of radio transmitters provided inside the same casing at the intermittent reception timing of a radio call reception part concerning a cellular mobile communication system or a packet communication system. SOLUTION: In the case of mobile communication to which a radio call receiving function is added, intermittent reception is performed at the timing generated by an intermittent reception timing generating part 16. At such a time, a transmission control part 18 stops the transmitting operation of a transmission part 17 by turning a transmission enabling signal to an inhibited state during the intermittent reception timing. Then, when it is confirmed that a reception part 16 is located in a reception stop block, the transmitting operation is started. Thus, the transmitting operation is stopped while a call receiving function is operated, the noise produced by various clock or the like following the transmitting operation is prevented from flowing in and degradation in the reception sensitivity caused by the transmitting operation can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio paging packet radio apparatus having a radio paging function added to a radio transceiver.

[0002]

2. Description of the Related Art As a wireless transmitter / receiver having a wireless call receiving function, a wireless telephone with a wireless transmitter / receiver having a wireless call receiver has been proposed. For example, JP-A-63-224422, JP-A-5-14258, and JP-A-5-9102
No. 2 and Japanese Patent Application Laid-Open No. 6-97877 each disclose that the power consumption of a battery is suppressed by stopping a mobile phone function and performing standby reception using a wireless call reception function. JP-A-3-32236 and JP-A-5-130029 each disclose the automatic calling of a mobile phone based on telephone number data received by a wireless calling system. JP-A-5-27
Japanese Patent No. 6100 discloses that by performing position registration when there is a movement between wireless paging areas, battery consumption current is reduced. Japanese Patent Application Laid-Open No. 6-466001 discloses that standby reception is performed by a wireless call reception function.
It discloses that processing such as automatic calling of a mobile phone is performed based on data received by a wireless call receiving function.

[0003] Also, it has been practically used to connect an information processing terminal to a portable telephone device and perform packet communication wirelessly.

[0004]

In general, when a radio call receiving function and a radio transmission function such as a cellular phone or a packet communication are provided in a single housing, transmission waves, noise, and radio waves generated by the radio transmission function are generated. Noise and the like caused by various clocks used in the transmitter are mixed in the radio call reception function, and the reception sensitivity of the radio call function is deteriorated. Therefore, in realizing a wireless paging radio, how to improve the reception sensitivity deterioration of the radio paging reception function while the radio transmission function is operating is an issue.

SUMMARY OF THE INVENTION The present invention solves such a problem, and provides a wireless transmission function when a wireless device of a cellular mobile communication system such as a portable telephone device or a wireless device performing packet transmission is provided with a wireless call receiving function. It is an object of the present invention to provide a radio paging wireless device that does not cause the reception sensitivity of the radio paging reception function to be degraded by the operation.

[0006]

SUMMARY OF THE INVENTION A first aspect of the present invention is a radio paging radio apparatus in which a radio paging reception function is added to a radio apparatus of a cellular mobile communication system (for example, a portable telephone). Radio communication unit that communicates with the base station of the system, and a radio paging radio device that includes a radio paging reception unit that intermittently receives a radio paging signal dedicated to paging, wherein the radio communication unit includes a radio paging reception unit. At the intermittent reception timing, a means for stopping the transmission operation of the radio signal is provided.

[0007] A second aspect of the present invention is also a radio paging radio apparatus in which a radio paging reception function is added to a radio apparatus of the cellular mobile communication system, wherein the radio communication unit suspends reception of intermittent reception of the radio paging reception unit. It is characterized by comprising a means for performing a radio signal transmission operation in a section.

[0008] A third aspect of the present invention is a radio paging radio apparatus in which a radio paging function is added to a radio apparatus that performs packet transmission. A packet transmission unit that wirelessly transmits a packet, and a packet transmission unit of the packet transmission unit. In a radio paging radio having a packet transmission control means for controlling transmission and a radio paging reception unit for intermittently receiving a paging radio signal, the packet transmission control means includes an intermittent reception of the radio paging reception unit. The timing is characterized in that a means for stopping the packet transmission operation by the packet transmission unit is provided.

A fourth aspect of the present invention is also a radio paging radio apparatus in which a radio paging reception function is added to a radio apparatus that performs packet transmission, and the time required for transmitting a packet to be transmitted is provided to the packet transmission control means. The time until the start of the next intermittent reception is compared with the time until the start of the next intermittent reception. If the time required for transmission is shorter than the time until the start of the next intermittent reception, the packet transmission is started. Means for starting packet transmission after the intermittent reception operation ends when the time is longer than the time until

That is, according to the present invention, by avoiding the transmission operation of the radio communication unit or the packet transmission unit at the timing of the intermittent reception of the radio call reception unit, the packet radio function which causes the deterioration of the sensitivity of the radio call reception unit is avoided. Generation of noise can be prevented. Since the present invention restricts the transmission operation, it is suitable for data transmission that does not require real-time properties.

[0011]

FIG. 1 is a block diagram showing a first embodiment of the present invention, in which a radio call receiving function (radio calling section) is added to a radio (radio communication section) of a cellular mobile communication system. The following shows the configuration. This wireless paging radio is composed of a radio paging unit 11 and a radio communication unit 12, a radio paging antenna 13 is connected to the radio paging unit 11, and a radio communication antenna 14 is connected to the radio communication unit 12. You. The radio paging unit 11 includes a radio paging reception unit 15 and an intermittent reception timing generation unit 16, and the radio communication unit 12 includes a transmission unit 17 and a transmission control unit 18. The configuration related to the reception function in the wireless communication unit 12 is omitted.

The radio call receiver 15 intermittently receives a radio call signal dedicated to calling. The intermittent reception timing generator 16 controls the intermittent reception operation of the radio pager 15 by generating the intermittent reception timing. Transmission unit 1
Reference numeral 7 transmits a radio signal for communicating with a base station of the cellular mobile communication system. Based on the transmission permission signal from the intermittent reception timing generator 16, the transmission controller 18
Control the transmission operation of

FIGS. 2 and 3 show transmission control unit 1 respectively.
8 shows a control flow of the transmission unit 17 according to FIG. In the control flow shown in FIG. 2, when the transmission permission signal is in the prohibition state, that is, in the intermittent reception timing of the radio paging unit 11, the transmission control unit 18 is in the communication state (outgoing, receiving, or communicating).
Regardless of the above, the transmitting operation of the wireless signal in the transmitting unit 17 is stopped. On the other hand, in the control flow shown in FIG. 3, after confirming that the transmission permission signal is in the permission state, that is, the reception suspension section of the intermittent reception of the radio call receiving unit 15, the transmission operation of the radio signal in the transmission unit 17 (transmission or (Incoming call).

Regarding the control of the transmission operation by the transmission control unit 18, the radio paging unit 11 uses an ARI
A system specified by the B STD-43 advanced radio paging system standard and a system specified by the ARIB STD-27 digital car telephone system standard as a cellular mobile communication system by the radio communication unit 12 will be described as an example.

FIG. 4 is a diagram showing the relationship between the signal formats of the radio call and the cellular system and the operation timing of each unit shown in FIG. 1 for these signals.
(A) is a radio paging signal format, (b) is a radio paging frame format, (c) is intermittent reception timing in the radio paging unit 11, (d) is a cellular radio frame format, and (e) is a 0th time. (F) is a transmission permission signal output from the intermittent reception timing generator 16;
Indicates the transmittable timing of the transmitting unit 17.

In the radio call system shown in this example, FIG.
As shown in FIG. 4A, each frame is composed of a synchronization signal and 10 blocks, and as shown in FIG.
One carrier is composed of 128 frames. The intermittent reception cycle in the radio paging system has a variable cycle value m
Is determined by the following parameters. In the radio paging system shown in this example, the intermittent reception cycle is called a variable reception cycle, and this value is 2 ^m . For example, when m = 5, FIG.
As shown in (c), the intermittent reception cycle is 2 ⁵ = 32, and the radio page receiver 15 performs reception every 32 frames. On the other hand, in the cellular mobile communication system, transmission and reception are performed in time slots allocated in advance. FIGS. 4D and 4C show timings when transmitting in the 0th frame.

In the radio pager 11, a radio page receiver 15 is used.
Receives and demodulates a radio signal, and an intermittent reception timing generator 16 generates an intermittent reception timing by detecting a synchronization signal included in a frame, and
5 and the wireless communication unit 12
The transmission permission signal shown in FIG. Thereby, the timing at which the transmission unit 17 can transmit is set as shown in FIG.

In this embodiment, the intermittent reception timing of the radio call coincides with the prohibited state in the transmission permission signal. The transmission control unit 18 stops the transmission operation of the transmission unit 17 when the transmission permission signal is in the prohibited state, or starts the transmission operation of the transmission unit 17 when the transmission permission signal is in the permitted state.

FIG. 5 is a block diagram showing a second embodiment of the present invention, and shows a configuration in which a wireless call receiving function (wireless calling unit) is added to a wireless device (packet wireless unit) for performing packet transmission. This radio paging radio is a radio paging unit 21.
And a packet radio unit 22.
1 is connected to a radio calling antenna 23, and the packet radio unit 22 is connected to a packet communication antenna 24. The radio paging unit 21 includes a radio paging reception unit 25 and an intermittent reception timing generation unit 26, and the packet radio unit 22
A packet transmission unit 27, a packet transmission counter 28, and a packet transmission control unit 29 are provided for packet transmission. The configuration related to packet reception is omitted.

The radio call receiving section 25 intermittently receives a radio call signal dedicated to calling. The intermittent reception timing generator 26 controls the intermittent reception operation of the radio call receiver 25 by generating the intermittent reception timing. The packet transmitting unit 27 wirelessly transmits a packet. The packet transmission counter 28 is constituted by a down counter,
The transmission frame clock of the packet transmission unit 27 is counted down. The initial value of the packet transmission counter 28 is determined based on the intermittent timing generated by the intermittent reception timing generator 26 or the clock input after the count value becomes “0”, and the packet is transmitted at the non-reception timing of the radio call. The number of possible packets N is set. The packet transmission control unit 29 controls the packet transmission operation of the packet transmission unit 27 with reference to the count value of the packet transmission counter 28.

FIGS. 6 and 7 show transmission control unit 2 respectively.
9 shows a control flow of the packet transmission unit 27 according to No. 9. FIG.
In the control flow shown in (1), the packet transmission operation by the packet transmission unit 27 is stopped at the intermittent reception timing of the radio call reception unit 25. In the control flow shown in FIG.
The time until the start of the next intermittent reception is compared with the time until the start of the next intermittent reception.If the time required for transmission is longer than the time until the start of the next intermittent reception, the packet transmission is started. If the time is short, packet transmission is started after the intermittent reception operation ends.

Hereinafter, ARIB ST is used as a radio paging method.
D-43, an example of a system defined in the advanced radio paging system standard. As a packet communication system, for example, PCR STD-27, a channel based on a 3ch TDMA system as defined in a digital car telephone system standard. A system for continuously transmitting packets between (# 1, # 2, # 3) will be described as an example.

FIGS. 8A and 8B are diagrams showing the relationship between the signal format of radio paging and the operation timing. FIG. 8A shows a radio paging signal format, FIG. 8B shows a radio paging frame format, and FIG. (D) is a frame format per carrier of the packet system, (e) is a transmission frame clock in the packet transmission unit 27, (f) is a set signal for setting the packet transmission counter 28, (g) ) Indicates the counter value of the packet transmission counter 8, and (h) indicates the timing at which the packet is transmitted.

The frame structure of the radio paging system is the same as that shown in FIG. 4, and the operation in radio paging unit 21 is the same as the operation of radio paging unit 11 in the first embodiment. The intermittent reception timing generated by the intermittent reception timing generator 26 to control the intermittent reception operation of the radio pager 15 is output to the packet transmission counter 28 in the packet radio unit 22 as a set signal. This set signal is shown in FIG.

The packet transmitting section 27 generates a transmission frame clock shown in FIG. 8E in synchronization with the frame of the format shown in FIG. 8D, and supplies this to the packet transmission counter 28. The packet transmission counter 28 sets a count value to an initial value N by a set signal from the intermittent reception timing generator 26 or a clock input after the value becomes “0”, and decreases the value by the transmission frame clock. Let it. The counter value is input to the packet transmission control unit 29.

The packet transmission control unit 29 refers to the count value of the packet transmission counter 28 and
7 is controlled. As a control method, when the count value of the packet transmission counter 28 is N, packet transmission is stopped, and when the count value becomes N-1, packet transmission is started. Assuming that the packet length to be transmitted is smaller than the counter initial value N, the packet length to be transmitted is compared with the counter value. If the packet length is larger than the counter value, the transmission is postponed. Packet transmission is started when the length of the packet becomes longer than the length of the packet to be transmitted. Either may be used. Thereby, the radio transmission operation of the packet transmission unit 27 can be stopped at the time of the intermittent reception of the radio call receiving unit 25, and it is possible to avoid the occurrence of noise or the like which causes deterioration of the reception sensitivity of the radio call.

[0027]

As described above, in the radio paging radio of the present invention, since the transmission operation is not performed at the timing of the intermittent reception of the radio paging receiver, noise to the radio paging receiver is reduced. This has the effect of preventing the sensitivity of radio call reception from deteriorating.

[Brief description of the drawings]

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

FIG. 2 is a diagram illustrating an example of a control flow of a transmission unit by a transmission control unit.

FIG. 3 is a diagram showing another example of the control flow of the transmission unit by the transmission control unit.

FIG. 4 is a diagram showing a relationship between a signal format and operation timing.

FIG. 5 is a block diagram showing a second embodiment of the present invention.

FIG. 6 is a diagram illustrating an example of a control flow of the packet transmission unit by the packet transmission control unit.

FIG. 7 is a diagram showing another example of the control flow of the packet transmission unit by the packet transmission control unit.

FIG. 8 is a diagram showing a relationship between a signal format and operation timing.

[Explanation of symbols]

 11, 21 Radio paging section 12 Radio communication section 13, 23 Radio paging antenna 14 Radio communication antenna 15, 25 Radio paging reception section 16, 26 Intermittent reception timing generation section 17 Transmission section 18 Transmission control section 22 Packet radio section 24 Packet Communication antenna 27 Packet transmission unit 28 Packet transmission counter 29 Packet transmission control unit

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kiyoto Nagata 2-10-1 Toranomon, Minato-ku, Tokyo Inside NTT Mobile Communication Network Co., Ltd.

Claims (4)

[Claims] 1. A wireless paging radio device comprising: a wireless communication unit that wirelessly communicates with a base station of a cellular mobile communication system; and a wireless paging unit that intermittently receives a paging signal exclusively for paging. The wireless communication unit includes means for stopping a transmission operation of a wireless signal at the intermittent reception timing of the wireless calling unit. 2. A wireless paging radio comprising: a wireless communication unit that wirelessly communicates with a base station of a cellular mobile communication system; and a wireless paging unit that intermittently receives a paging signal. The wireless communication unit includes means for performing a transmission operation of a wireless signal in a reception suspension section of intermittent reception of the wireless calling unit. 3. A packet transmission unit for transmitting a packet by radio, a packet transmission control means for controlling packet transmission of the packet transmission unit, and a radio paging unit for intermittently receiving a paging signal exclusively for paging. In the wireless paging wireless device, the packet transmission control means includes means for stopping a packet transmission operation by the packet transmitting unit at the intermittent reception timing of the wireless paging unit. 4. A packet transmission unit for transmitting a packet by radio, a packet transmission control unit for controlling packet transmission of the packet transmission unit, and a radio paging reception unit for intermittently receiving a paging signal for paging. In the wireless paging wireless device provided, the packet transmission control means compares a time required for transmitting a packet to be transmitted with a time required until the start of the next intermittent reception in the wireless paging receiving unit, and determines a time required for the transmission. Means for starting packet transmission when the time is shorter than the time until the start of intermittent reception, and means for starting packet transmission after the operation of the intermittent reception is completed when the time required for transmission is longer than the time until the start of the next intermittent reception A wireless device with a radio paging.