JP2002300633A - Mobile machine and monitoring method of peripheral zone in high-speed full-duplex packet communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile machine that monitors a reception level in a peripheral zone, and allows accurate zone shifting operation even in a high-speed full-duplex packet communication system, and to provide a method for monitoring the peripheral zone in the high-speed full-duplex packet communication system. SOLUTION: The mobile machine in a mobile machine radio system where the mobile machine can use all plural slots in the packet of a user packet channel for communication includes a means for detecting the slot from a received packet, a means for judging whether a received packet is a packet that should be sent to an own mobile machine or not according to information in the slot, a means for outputting a command for starting monitoring the peripheral zone when it is judged that the received packet is not a packet that should be sent to the own mobile machine, and a means for temporarily stopping the reception of the packet to monitor the reception level in the peripheral zone when the command for starting monitoring the peripheral zone is outputted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PDC (Personal D) employing a high-speed full-duplex packet communication system.
TECHNICAL FIELD The present invention relates to a technical field related to monitoring of a zone around a mobile device in a mobile device wireless system such as an electronic cellular.

[0002]

2. Description of the Related Art Conventionally, a low-speed full-duplex packet communication system ("Digital mobile telephone system standard STD") employed in a mobile communication system such as a PDC.
-27I ”), a user packet channel (hereinafter referred to as“ U ”) that the mobile device can use for downlink data communication.
PCCH), three slots are provided in one frame, of which one slot is used by the mobile station for communication and the remaining two slots (empty slots) are used to monitor the reception level of the peripheral zone. In this way, accurate zone migration was possible.

By the way, in order to increase the speed of downlink data communication with the increase in traffic volume in recent years, even in UPCH, a mobile station can use all three slots in one frame for communication. Duplex packet communication systems are being studied.

[0004]

However, in the conventional mobile station, since the receiving operation of the UPCH is continuously performed, when the mobile station uses all three slots, the monitoring of the reception level in the peripheral zone is not performed. I can no longer do it. As a result, there is a problem that it is difficult for the mobile device to perform an accurate zone transfer operation.

[0005] Further, in the conventional mobile station, only one designated slot is watched, so that it is not necessary to monitor the surrounding zone by looking at the vacant space. Since all are used, there is no available slot, and there is a problem that the peripheral zone cannot be monitored as in the related art.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems. Even in a high-speed full-duplex packet communication system, a mobile station capable of monitoring a reception level in a peripheral zone and performing an accurate zone transfer operation, and a high-speed full-duplex packet communication system. It is an object of the present invention to provide a method for monitoring a peripheral zone in a full-duplex packet communication system.

[0007]

In order to solve the above-mentioned problems, the invention according to claim 1 enables a mobile station to use all of a plurality of slots in a packet of a user packet channel for communication. Means for detecting a slot from a received packet in a mobile station in a mobile station radio system; means for determining whether or not a received packet is a packet addressed to the own mobile station based on information in the slot; Means for outputting a command to start monitoring of the peripheral zone when it is determined that the packet is not addressed to the packet, and temporarily stops reception of the packet when there is an output of the command to start the peripheral zone. Means for monitoring the reception level of the zone.

According to the first aspect of the present invention, it is configured to determine whether or not the packet is addressed to the own mobile station and to monitor the peripheral zone when the packet is not addressed to the own mobile station. In addition, even in the high-speed full-duplex packet communication system, an accurate zone shift operation can be performed.
Here, the mobile device includes a mobile phone such as a PDC, PH
S, mobile radio communication electronic devices such as automobile mobile phones.

According to a second aspect of the present invention, there is provided a mobile station in a mobile station radio system in which a plurality of slots in a packet of a user packet channel can be used for communication by the mobile station, Means for detecting whether or not the idle unit continues from the information in the slot, and a command to start monitoring the surrounding zone with the next packet when it is determined that the idle unit continues. Means for outputting the start command of the peripheral zone, and means for monitoring the peripheral zone by temporarily suspending the reception of the packet at the reception timing of the same slot in the next packet when the peripheral zone start command is output. Configure to provide.

According to the second aspect of the present invention, it is determined whether or not the idle unit is to be continued, and when the idle unit is to be continued, the peripheral zone is monitored at the reception timing of the next slot. The same effect as the first aspect of the invention can be obtained.

According to a third aspect of the present invention, in a mobile station in a mobile station radio system in which a plurality of slots in a packet of a user packet channel can be used by the mobile station for communication, a slot from a received packet is Means for detecting whether a packet received from the information in the slot is a packet addressed to the own mobile station, and a means for determining whether the received packet is not a packet addressed to the own mobile station. A first start command output means for outputting a command to start monitoring, a means for determining whether or not the idle unit is to be continued from the information in the slot, and A second start command output means for outputting a command to start monitoring of the peripheral zone by a packet of
If there is an output from the start command output means, the reception of the packet is suspended and the reception level of the surrounding zone is monitored, and if there is an output from the second start command output means, the next packet is output. Means for suspending packet reception at the same slot reception timing and monitoring surrounding zones.

[0012] According to the third aspect of the present invention, the first aspect is provided.
Since the inventions of the first and second aspects are combined to perform the peripheral zone monitoring, the same effect as the first aspect of the invention can be obtained. In addition, with such a combination, the frequency of peripheral zone monitoring can be improved, so that a more effective zone shift operation can be performed.

According to a fourth aspect of the present invention, in the high-speed packet communication method, it is determined whether or not the received data is a packet addressed to the own mobile station. Configure for monitoring.

According to the invention described in claim 4, according to claim 1 of the present invention,
The same effect as the invention described in (1) can be obtained.

According to a fifth aspect of the present invention, in the high-speed packet communication method, a slot is detected from a received packet, it is determined whether or not an idle unit continues from the slot. The peripheral zone is monitored at the slot reception timing.

According to the invention set forth in claim 5, according to claim 2,
The same effect as the invention described in (1) can be obtained.

According to a sixth aspect of the present invention, in the high-speed packet communication method, a first step of detecting a slot from a received packet and determining whether or not an idle unit continues from the slot is performed. A second step of determining whether or not the packet is addressed to a mobile device;
If it is determined in the first step that the idle unit is to be connected, the peripheral zone is monitored at the reception timing of the next slot, and it is determined in the second step that the packet is not a packet addressed to the own mobile station. In such a case, it is configured to monitor the surrounding zone.

According to the invention described in claim 6, according to claim 3,
The same effect as the invention described in (1) can be obtained.

[0019]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic configuration example of a mobile device according to an embodiment of the present invention. In the figure,
The processing unit 10 includes a CPU having an arithmetic function, a complex logic circuit, a high-frequency circuit, a clock generation circuit, a RAM, and the like, and executes various controls and processes in the mobile device 1 while using the RAM as a work storage area. I do. The control / processing unit 10 includes a reception processing unit 10a that performs channel connection, switching operation, and packet reception processing, a unit determination processing unit 10b that performs peripheral zone monitoring start determination processing, and a monitoring processing of the reception level of the peripheral zone. The peripheral zone monitoring processing unit 10c and the like that are responsible are logically constructed. The reception buffer 11 temporarily stores the received data and provides it to the control / processing unit 10.

The storage unit 12 includes a ROM, a P-ROM, a memory card, and the like. UP
A table or the like indicating the CH is stored. In addition, the mobile device 1 further includes known components such as a transmission processing unit and a transmission buffer, but these components are not directly related to the present invention, and a description thereof will be omitted.

In such a configuration, the control / processing unit 1
0 reception processing unit 10a performs a reception operation of UPCH,
A subframe (packet) and a slot are detected from the signal data of the superframe. Although there are three slots in a subframe, the present invention assumes that all three slots are used for communication by a mobile station (high-speed full-duplex packet communication system). Therefore, according to the present invention, the peripheral zone is not always monitored in a predetermined slot as in the related art. Instead, the peripheral zone is monitored at a predetermined timing based on the determination of the unit determination processing unit 10b. It is characterized by performing.

FIG. 2A shows a format in a unit in one slot. Such a unit is extracted by a known algorithm by the reception processing unit 10a. The unit is composed of 8 W bits (signal configuration information) and layer 2 information. Further, the W bit is composed of information of F1, F2, and W0. F1 indicates whether the unit is the head unit (“1” for the head unit, “0” for the non-head unit), and F2 indicates whether the unit is the last unit (final unit). Indicates "1" for a non-final unit and "0") for a non-final unit. In W0, F2
If = 1, it indicates the number of valid bytes. If F2 = 0, the number of remaining units Wr (1 to 62), the absence of layer 2 information of the unit (W0 = 0), the layer 2 of 63 units or more Indicates that there is information (W0 = 63). The unit determination processing unit 10b of the control / processing unit 10
Thus, the type of the unit (the first unit, the middle unit, the last unit) is determined.

Here, when W0 is 2 or more, a plurality of layer 2 information assigned to each slot is integrated to complete one layer 2 information. Based on this W0, the unit determination processing unit 10b can recognize how many units to continue are sent.

A unit when no layer 2 information is present (W0 = 0) (hereinafter referred to as an "idle unit")
This is to give predetermined information to mobile units in common (mainly used for error correction), and FIG. 2B shows an example of octet information included in an idle unit. In FIG. 2B, I in octet 1 indicates the number of idle units that continue in the same slot. For example, if I = 1, it means that idle units continue in the next slot. , I = 2, means that the idle unit continues in the next slot and the next slot. When the idle units are continuous as described above, if the control / processing unit 10 receives one of the idle units, it is sufficient for processing such as error correction. Based on W0, the unit determination processing unit 10b recognizes whether or not it is an idle unit and information in octets included in the idle unit.

In each slot, an address field is included in the layer information 2 of the head slot (head unit), and part of the address field is an MSI (mobile station number). The unit determination processing unit 10b uses the MSI
Thus, it is determined whether the received packet is a packet addressed to the own mobile station or a packet addressed to another mobile station. In addition,
The other octets in FIG. 2B have no direct relation to the present invention, and thus description thereof is omitted.

Next, the mobile station 1 for monitoring the peripheral zone
Will be described with reference to the flowchart shown in FIG. FIG. 3A illustrates a first embodiment of the peripheral zone monitoring start determination process in the unit determination processing unit 10b.
FIG. 3B shows a second embodiment of the peripheral zone monitoring start determination process in the unit determination processing unit 10b, and FIG.
9 shows a third embodiment of the peripheral zone monitoring start determination process in the unit determination processing unit 10b. Hereinafter, the first, second, and third embodiments will be described in this order.
In the description of the second and third embodiments, the description of the same parts as those of the first embodiment will be omitted.

(First Embodiment) In the first embodiment, first, the reception processing unit 10a connects to the UPCH specified by the base station by a known means, and performs the operation of receiving the superframe signal data. Start. The received signal data is temporarily stored in the reception buffer 11. Subsequently, the reception processing unit 10a detects a packet and a slot from the reception data in the reception buffer 11, and extracts a unit from the slot.

As shown in FIG. 3A, the unit determination processing unit 10b refers to F1 in W (signal configuration information) of the extracted unit and determines whether or not the unit is the head unit (see FIG. 3A). F1 = 1 or F1 = 0) is determined (step S1). If the unit is the head unit, the unit determination processing unit 10b transmits the layer information 2 of the unit.
It is determined whether or not the received packet is a packet addressed to the own mobile station or a packet addressed to another mobile station by referring to the MSI existing in the address field of (2) (step S2). If the packet is not a packet addressed to the own mobile device, the unit determination processing unit 10b outputs a peripheral zone monitoring start command to the reception processing unit 10a and the peripheral zone monitoring processing unit 10c (step S3).

As a result, the reception processing unit 10a
H receiving operation is suspended. In addition, the peripheral zone monitoring processing unit 10c performs the monitoring processing of the reception level of the peripheral zone at the timing of each slot (about 20 ms interval) while referring to the parameter for setting the threshold for performing the channel shift processing. The monitoring process of the peripheral zone is performed by about W0 × 20 ms.
It will be performed during. Surrounding zone monitoring processing unit 10c
If you need to move to a surrounding zone,
The reception processing unit 10a transmits the UPCH that is a candidate for zone transfer.
Is controlled with reference to a table indicating the UPCH. This table is updated at the time of measuring the peripheral level.

As described above, according to the first embodiment, it is determined whether or not the packet is addressed to the own mobile station, and if the packet is not addressed to the own mobile station, the peripheral zone is monitored. Therefore, even in the high-speed full-duplex packet communication system in which all three slots are used for communication by the mobile station, an accurate zone shift operation can be performed.

(Second Embodiment) In the second embodiment, the first
As in the embodiment, the reception processing unit 10a detects a subframe and a slot from the received data in the reception buffer 11, and extracts a unit from the slot.

As shown in FIG. 3B, the unit determination processing unit 10b refers to W0 in W (signal configuration information) of the extracted unit and determines whether or not the unit is an idle unit (see FIG. 3B). (W0 = 0) is determined (Step S)
11). If the unit is an idle unit, the unit determination processing unit 10b determines whether I = 1 or I = 2 by referring to I in octet 1 of the unit, that is, the unit continues to operate. It is determined whether or not to perform (step S12). When I = 1 or I = 2, the unit determination processing unit 10b issues a command to start peripheral zone monitoring at the same packet reception timing of the next packet to the reception processing unit 10a and the peripheral zone monitoring processing unit. Output to 10c (step S13).

Thus, the reception processing unit 10a stops the operation of receiving the UPCH at the reception timing of the same slot of the next packet, and the peripheral zone monitoring processing unit 10c monitors the reception level of the peripheral zone at that timing. I do.

As described above, according to the second embodiment, it is determined whether or not the idle unit is to be continued, and if so, the peripheral zone is monitored at the reception timing of the next slot. Therefore, the same effect as in the first embodiment can be obtained.

(Third Embodiment) The third embodiment is a combination of the first and second embodiments. Also in this case, the reception processing unit 10 a , A subframe and a slot are detected, and a unit is extracted from the slot.

As shown in FIG. 4, the unit determination processing unit 1
0b is W (signal configuration information) of the extracted unit
, It is determined whether the unit is an idle unit (W0 = 0) (step S2).
1). If the unit is not an idle unit, the unit determination processing unit 10b refers to F1 in W (signal configuration information) of the extracted unit and determines whether the unit is the head unit (F1 = 1 or F1 = 2) is determined (step S22).

If it is determined in step S21 that the unit is an idle unit, the unit determination processing unit 10
b performs the same processing as in the second embodiment (step S
23, step S24).

If it is determined in step S22 that the unit is the head unit, the unit determination processing unit 1
0b performs the same processing as in the second embodiment (step S25, step S26).

As described above, according to the third embodiment, the first
Since the peripheral zones are monitored by combining the first and second embodiments, the same effects as those of the first embodiment can be obtained. In addition, with such a combination, the frequency of peripheral zone monitoring can be improved, so that a more effective zone shift operation can be performed.

It should be noted that the above embodiment is applicable to all TDMA
(Time Division Multiple Access) system high-speed packet communication mobile phone, and TDMA system high-speed packet communication system supporting dual band or higher mobile phone.

[0041]

As described above, according to the present invention, even in a high-speed full-duplex packet communication system in which a mobile station uses all three slots for communication, peripheral zone monitoring is performed at a predetermined timing. Thus, the zone shift operation can be performed accurately and effectively.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a schematic configuration example of a mobile device according to an embodiment of the present invention.

FIG. 2A is a diagram showing a format in a unit in one slot. FIG. 3 is a diagram illustrating a data format during a superframe. (B) is a figure showing an example of octet information included in an idle unit.

FIG. 3A is a diagram illustrating a first embodiment of a peripheral zone monitoring start determination process in a unit determination processing unit 10b;
(B) is a flowchart showing a second embodiment of the peripheral zone monitoring start determination processing in the unit determination processing unit 10b, respectively.

FIG. 4 is a flowchart showing a third embodiment of a peripheral zone monitoring start determination process in the unit determination processing unit 10b.

[Explanation of symbols]

 Reference Signs List 1 mobile unit 10 control / processing unit 10a reception processing unit 10b unit determination processing unit 10c peripheral zone monitoring processing unit 11 reception buffer 12 storage unit

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Minami Shinkanmachi 34 Shinano-ku, Tokyo JR Shinanomachi Building J-phone East Japan Co., Ltd. F-term (reference) 5K028 AA14 BB04 HH02 HH03 KK32 MM12 MM14 PP04 5K030 GA11 HA08 HC09 HD05 LB02 MA04 MB01 5K067 AA33 BB03 BB04 CC04 CC08 EE02 EE10 EE71 HH22 HH23 HH26 JJ52 JJ54 KK13 KK15 LL01

Claims (6)

[Claims] 1. A mobile station in a mobile station radio system in which a mobile station can use all of a plurality of slots in a packet of a user packet channel for communication, a means for detecting a slot from a received packet, Means for determining whether or not the packet received from the information in the slot is a packet addressed to the own mobile station; and, if it is determined that the received packet is not a packet addressed to the own mobile station, a command to start monitoring the surrounding zone A mobile device comprising: output means; and means for monitoring reception level of a peripheral zone by temporarily stopping packet reception when a peripheral zone start command is output. 2. A mobile station in a mobile station radio system in which the mobile station can use all of a plurality of slots in a packet of a user packet channel for communication, a means for detecting a slot from a received packet, Means for determining whether or not the idle unit continues from the information in the slot; means for outputting a command to start monitoring the surrounding zone in the next packet when it is determined that the idle unit continues, Means for temporarily stopping packet reception at the same slot reception timing of the next packet and monitoring the peripheral zone when a peripheral zone start command is output. Machine. 3. A mobile station in a mobile station radio system in which the mobile station can use all of a plurality of slots in a packet of a user packet channel for communication, a means for detecting a slot from a received packet, Means for determining whether or not the packet received from the information in the slot is a packet addressed to the own mobile station; and, if it is determined that the received packet is not a packet addressed to the own mobile station, a command to start monitoring the surrounding zone First start command output means for outputting; means for judging whether or not the idle unit is continued based on information in the slot; Start command output means for outputting a command to start the operation, and output from the first start command output means In this case, the reception of the packet is suspended, the reception level of the surrounding zone is monitored, and if there is an output from the second start command output means, the packet is received at the same slot reception timing in the next packet. Means for suspending the reception of the mobile station and monitoring the surrounding zone. 4. In the high-speed packet communication method, it is determined whether or not the received data is a packet addressed to the own mobile station,
A peripheral zone monitoring method in high-speed full-duplex packet communication, wherein the peripheral zone is monitored when the packet is not addressed to the own mobile station. 5. In a high-speed packet communication method, a slot is detected from a received packet, and it is determined whether or not an idle unit continues from the slot. If the idle unit continues, a peripheral zone is detected at the reception timing of the next slot. A method of monitoring a peripheral zone in high-speed full-duplex packet communication, characterized by performing monitoring of a peripheral zone. 6. In a high-speed packet communication method, a first step of detecting a slot from a received packet and determining whether or not an idle unit continues from the slot, and a packet addressed to the own mobile station from received data. A second step of determining whether or not the idle unit is to be connected in the first step, monitoring the peripheral zone at the reception timing of the next slot, Monitoring a peripheral zone when it is determined that the packet is not a packet addressed to the own mobile station.