WO2008044275A1

WO2008044275A1 - Wireless communication terminal device

Info

Publication number: WO2008044275A1
Application number: PCT/JP2006/320115
Authority: WO
Inventors: Toshiaki Sakurai
Original assignee: Panasonic Corporation
Priority date: 2006-10-06
Filing date: 2006-10-06
Publication date: 2008-04-17

Abstract

It is an object to provide a wireless control device which judges a moving state, can apply a cell search parameter to meet a moving speed and can select a proper candidate frequency in the case that a frequency band at the starting time is greatly different from a frequency band at the arriving place because of the movement of a long distance. In this device, an entrance and exit place judging unit (303) judges a place from information obtained from a non-contact IC card (301) controlled by an IC card control unit (302) that a user puts on a ticket examination gate of a station, an entrance gate of a theme park, a boarding gate of an airport, etc. and selects a cell search parameter, a moving speed detecting threshold value and a frequency search candidate in accordance with such place information.

Description

Specification

Wireless communication terminal device

Technical field

[0001] The present invention relates to a radio communication terminal apparatus having a cell search function.

Background art

[0002] The cell search is performed by selecting an optimum cell search parameter according to a place where the wireless communication terminal device exists. Conventionally, as a method for selecting a cell search parameter in a radio communication terminal apparatus having this type of cell search function, for example, there has been one that focuses on the moving speed of the radio communication terminal apparatus (see, for example, Non-Patent Document 1). FIG. 1 is a block diagram showing a configuration of a conventional wireless communication terminal device 1 described in Non-Patent Document 1. In FIG. 1, the radio communication terminal apparatus 1 receives a radio signal with a plurality of cell powers with an antenna 100 and performs synchronous detection with a reception unit 101. The radio signal having a multi-cell power is received by a reception quality measurement unit 102. Then, the reception quality, for example, RSCP (Received Signal Code Power) is measured, and using the measurement result, the cell movement determination unit 103 determines whether to perform cell movement. At this time, the frequency of cell movement is monitored by the movement speed determination unit 105, and if cell movement occurs N times during a certain time T, it is determined that the movement is fast. That is, here, N is a threshold value for determining whether or not a high-speed moving force is present, and is a value determined in advance by the base station apparatus, for example, according to the specifications of the communication system. When it is determined that the mobile terminal 1 is moving at high speed, the radio communication terminal apparatus 1 uses the cell movement determination parameter selection unit 104 to select an optimal cell search parameter corresponding to the high-speed movement stored in the memory unit 106 and perform cell search. It ’s something to do.

[0003] Further, with regard to a method for selecting a parameter relating to a frequency that affects the efficiency of cell search, there has conventionally been a method of giving priority to a frequency used in the past (see, for example, Patent Document 1). FIG. 2 shows a configuration of the wireless communication terminal apparatus 2 described in Patent Document 1. The radio communication terminal apparatus 2 detects the received signal received by the antenna 100 by the receiving unit 101 as in FIG. For this detection, the wireless communication terminal apparatus 2 stores, as a list, data indicating frequencies that have received a past service in the memory unit 201 as a list. In this case, the frequency list selection unit 202 preferentially selects a recently used frequency from the list as a selection candidate, and the frequency switching control unit 203 selects the frequency list selection unit 2.

02 was configured to switch the detection frequency to the selected frequency.

Non-Patent Document 1: 3GPP TS25. 304 5. 2. 6

Patent Document 1: JP 2002-354532 A (Page 9, Fig. 2)

Disclosure of the invention

Problems to be solved by the invention

[0004] However, in these conventional technologies, high-speed movement is uniformly performed according to a threshold value predetermined as a specification of a communication system that does not use location information of a user who possesses a wireless communication terminal device. This is to determine whether or not it is power. For example, in the conventional configuration of Non-Patent Document 1, if the threshold value for determining high-speed movement is set low, even if cell movement occurs only for a short period of time, it is easy to erroneously determine that the cell is moving at high speed. There is a problem that the time until the number of times exceeds the threshold increases, and the time until the cell determination result indicating high-speed movement is obtained is delayed. In addition, in the conventional configuration of Patent Document 1, in a long-distance movement by an aircraft or the like with out-of-range movement, the recently used frequency is completely used. When moving to an area, it is used in that area! Because there is a priority in using frequencies for cell search, there is a problem that it takes time to select a frequency used in that area as a frequency candidate.

[0005] The present invention has been made in view of such a problem, and provides a wireless communication terminal device capable of finely and efficiently performing a cell search by using location information of a user acquired by non-contact communication means. The purpose is to provide.

Means for solving the problem

[0006] The wireless communication terminal device according to the present invention communicates with memory means that stores in advance cell selection information in which a moving speed of a user and a cell search parameter for cell selection are associated with each other in a contactless manner with the outside, Based on the non-contact communication means for obtaining information about the place where the user enters and exits and the information about the place where the user enters and exits obtained by the non-contact communication means, The moving speed estimation condition setting means for setting the moving speed estimation condition for estimating the moving speed of the user, and the set movement A cell search for the cell selection by referring to the cell selection information using the movement speed estimation means for estimating the movement speed of the user according to the speed estimation condition and the movement speed estimated by the movement speed estimation means A search parameter selection unit that selects a parameter; and a cell movement determination unit that determines whether or not a cell has moved according to a cell search parameter for cell selection selected by the search parameter selection unit.

[0007] Further, the wireless communication terminal device of the present invention communicates with frequency information memory means for storing frequency list information in which frequencies and places where users have entered and exited in the past in a contactless manner with the outside. A schedule information acquiring means for acquiring scheduled location information and scheduled time information scheduled for participation by the user, and referring to the frequency list information using the planned location information at the scheduled time of the scheduled time information. Thus, there is adopted a configuration comprising frequency selection means for selecting a frequency, and frequency switching control means for setting the frequency by searching with the frequency selected by the frequency selection means.

The invention's effect

[0008] According to the wireless communication terminal device of the present invention, it is possible to provide a wireless communication terminal device capable of performing detailed and efficient cell search using the user location information acquired by the non-contact communication means. .

Brief Description of Drawings

FIG. 1 is a block diagram showing a configuration of a conventional wireless communication terminal device based on moving speed determination

FIG. 2 is a block diagram showing a configuration of a wireless communication terminal device that searches for frequency candidates by a conventional method.

FIG. 3 is a block diagram showing a configuration of a radio communication terminal apparatus according to Embodiment 1 of the present invention.

FIG. 4 is a flowchart for explaining the operation of the radio communication terminal apparatus according to Embodiment 1 of the present invention.

FIG. 5 is a block diagram showing a configuration of a radio communication terminal apparatus according to Embodiment 2 of the present invention.

FIG. 6 is a block diagram showing a configuration of a radio communication terminal apparatus according to Embodiment 3 of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings. [0011] (Embodiment 1)

FIG. 3 is a block diagram of radio communication terminal apparatus 3 according to Embodiment 1 of the present invention. The wireless communication terminal device 3 includes a contactless IC card 301, an IC card control unit 302, an entrance / exit location determination unit 303, a movement speed threshold determination unit 304, a movement speed determination unit 305, a memory unit 306, an antenna. 310, reception section 311, reception quality measurement section 312, cell movement determination section 313, and search parameter selection section 307.

[0012] The non-contact IC card 301 is built in the wireless communication terminal device 3, and the user brings the wireless communication terminal device 3 closer to peripheral devices (not shown) such as a ticket gate device of a station and an entrance gate of a theme park. Thus, data is transmitted and received without contact with the peripheral device. The non-contact IC card 301 is realized by specifications conforming to ISOZIEC14443, which is an international standard, and JIS 'X6321-6323, which is a Japanese standard. As a result, the non-contact IC card 301 can easily and reliably perform non-contact communication such as data exchange and information and service data provided by the peripheral device when the peripheral device is realized in accordance with these standards. Can be obtained.

IC card control unit 302 controls transmission / reception of data between contactless IC card 301 and peripheral devices, and outputs data received by contactless IC card 301 to entry / exit location determination unit 303. .

[0014] The entry / exit location determination unit 303 indicates that a user has entered a facility provided with a peripheral device included in the data from the peripheral device output by the IC card control unit 302, or a peripheral device is provided. Information on the user's participation from the specified facilities and the power category of the facility location is acquired, and the acquired data is output to the moving speed threshold judgment unit 304. Here, the information related to the category refers to the attribute of the place determined from the characteristics of the place, such as whether the user often moves at high speed or often moves at low speed. In the present embodiment, it is assumed that three categories of low speed / high speed and ultra high speed are set based on the moving speed of the user. The entry / exit location determination unit 303 outputs a signal indicating the participation to the search parameter selection unit 307 when the user enters a predetermined facility.

[0015] The moving speed threshold value determination unit 304 receives the force of the location input from the entry / exit location determination unit 303. A threshold value corresponding to the category is determined and output to the movement speed determination unit 305. In the present embodiment, three categories of low-speed and high-speed and ultra-high speed are set, and two threshold values are set to distinguish these three categories. Specifically, there are two threshold values, a high speed determination threshold value and a low speed determination threshold value, and high speed determination threshold value> low speed determination threshold value is set. The moving speed threshold determination unit 304 indicates that the category of the location input from the entry / exit location determination unit 303 indicates that the user has a high tendency to move at a low speed. If the threshold value is set so that it can be easily output by the judgment unit 305, and if the category of the place input from the entry / exit place judgment unit 303 indicates that the user has a high tendency to move at high speed, A threshold value is set so that a determination result indicating that the movement speed is likely to be output by the movement speed determination unit 305, and the threshold value is output to the movement speed determination unit 305.

[0016] The movement speed determination unit 305 uses two threshold values, the number of cell movements input from the cell movement determination unit 313 (to be described later) and the high speed determination threshold value and the low speed determination threshold value input from the movement speed threshold value determination unit 304. It is determined whether the movement of the communication terminal device 3 is low speed, high speed, or ultra high speed. Specifically, the movement speed determination unit 305 determines that the wireless communication terminal device 3 is in an ultra-high speed movement state when the number of cell movements is greater than the high speed determination threshold, and the number of cell movements is determined as the high speed determination threshold. If it is between the low speed determination threshold, the wireless communication terminal device 3 is determined to be in a high speed movement state, and if the number of cell movements is smaller than the low speed determination threshold, the wireless communication terminal device 3 is in a low speed movement state. Judge that there is. The moving speed determination unit 305 outputs the determination result when the determination result is updated and a new determination result is obtained, for example, from low speed movement to high speed movement, from high speed to ultra high speed, or vice versa.

[0017] The memory unit 306 is a cell search parameter for low-speed movement, a cell search parameter for high-speed movement, and a super-high-speed cell search parameter associated with the movement speed in order to perform cell search according to the movement speed of the wireless communication terminal device 3, that is, Cell selection information for high-speed cell search parameters is stored in advance.

[0018] When the moving speed determination unit 305 outputs a new determination result, the search parameter selection unit 307 reads the cell selection information in the memory unit 306, and the cell search parameter for low speed movement corresponding to the determination result, the high speed movement Cell search parameters for high speed movement Cell search parameter is selected and output to cell movement determination section 313. Further, when a signal indicating that the user has entered a predetermined facility is input from the entrance / exit location determination unit 303, the search parameter selection unit 307 sets the cell search parameter before entering or a predetermined cell. Return to search parameters.

Antenna 310 receives radio signals from a plurality of cells and outputs received signals to receiving section 311. The receiving unit 311 outputs a signal of multiple cell power obtained by synchronous detection of the received signal to the reception quality measuring unit 312. Reception quality measuring section 312 measures the reception quality of the received radio signal of each cell. Reception quality measurement section 312 outputs the measurement result to cell movement determination section 313.

[0020] Cell movement determination section 313 uses cell search parameters input from search parameter selection section 307 and measurement results input from reception quality measurement section 312 to determine whether or not to perform cell movement, and for a predetermined time. It is determined how many cell movements have occurred during T, and the number of cell movements as a result of this determination is output to the movement speed determination unit 305.

Next, the operation of the wireless communication terminal device 3 will be described with reference to FIG. FIG. 4 is a flowchart for explaining the operation of the radio communication terminal apparatus according to Embodiment 1. As described above, the operation of moving speed threshold value determination section 304 is shown in detail.

[0022] First, the wireless communication terminal device 3 detects the output from the non-contact IC card 301 by the IC card control unit 302, whether or not the entry information by the IC card is detected, that is, the wireless communication terminal device 3 It is checked whether the user has entered or exited the predetermined facility (S400).

[0023] When there is entry information (S400: Yes), the entry / exit location determination unit 303 determines which category the entry location corresponds to based on the data input from the IC card control unit 302 and determines The result is output to the moving speed threshold value determination unit 304. Here, focusing on the user's moving speed, the judgment results are obtained in three categories: low-speed movement, high-speed movement, and ultra-high speed movement. The first category is low-speed movement, which corresponds to a case where a user enters a specific facility such as a theme park (S401) and moves on foot within the facility. The second category is the case of high-speed movement, which corresponds to the case where the user moves into a high-speed vehicle (S402) such as a general train. The third category is the case of ultra-high-speed movement, where the user gets into an ultra-high-speed vehicle such as the Shinkansen (S403) and moves. Case corresponds.

[0024] If it is determined that the current location is within a specific facility such as a theme park (S401: Yes), the user moves only within the specific facility, so the user's moving speed is assumed to be low. Therefore, the moving speed threshold determination unit 304 sets the high speed determination threshold of the moving speed determination unit 305 to be high and outputs a determination result indicating high speed movement, while setting the low speed determination threshold to be low. Make it easy to output judgment results indicating movement (S404)

[0025] In addition, when it is determined that the vehicle is in a high-speed vehicle such as a general train (S402: Yes), this is a case where it can be estimated that the user gets on and travels at a high-speed vehicle equivalent to a train. Therefore, the moving speed threshold determination unit 304 sets the high speed determination threshold of the moving speed determination unit 305 to a medium so that the determination of the high speed moving state is more easily output than in the case of Step S401. Further, by setting the low speed determination threshold value of the moving speed determination unit 305 to a medium level, control is performed such that the determination of the low speed movement state is more likely to be output than in the case of step S401 (S405).

[0026] If it is determined that the user of the Shinkansen or the like is in an ultra-high speed vehicle (S403: Yes), it can be estimated that the user will travel on an ultra-high-speed vehicle equivalent to the Shinkansen. Therefore, the moving speed threshold determination unit 304 sets the high speed determination threshold of the moving speed determination unit 305 lower than in the case of step S402 so that the determination of the high speed movement state is easily output. The low speed determination threshold of the movement speed determination unit 305 Is set higher than in the case of step S402, and control is performed so that the judgment of the low speed and high speed movement state is output (S406).

[0027] When there is no entry information (S400: No), this indicates that the user is not in the corresponding place or has entered, so the moving speed threshold determination unit 304 has a predetermined normal value. Alternatively, the high speed judgment threshold and the low speed judgment threshold of the moving speed judgment unit 305 are set to values before the user enters the corresponding place (S407). In addition, when a signal indicating that the user has entered the predetermined facility is input from the entry / exit location determination unit 303, the search parameter selection unit 307 displays the cell search parameter before the user enters the corresponding location. The data is output to the cell movement determination unit 3 13 and the wireless communication terminal device 3 is returned to the state before the user entered the corresponding place. [0028] By setting the high speed determination threshold and the low speed determination threshold of the movement speed determination unit 305 in this way, the movement speed determination unit 305 moves at high speed whether the wireless communication terminal device 3 is moving at low speed. It is determined whether the power is moving or moving at super high speed (S408). The moving speed determination unit 305 outputs the determination result to the memory unit 300 via the search parameter selection unit 307.

In response to this, search parameter selection section 307 reads cell selection information from memory section 306, selects a cell search parameter corresponding to the determined moving speed, and outputs the cell search parameter to cell movement determination section 313.

Next, the cell movement determination unit 313 performs a cell search based on the cell search parameter input from the search parameter selection unit 307. In this way, by performing cell search using cell search parameters that reflect the tendency of the user's moving speed based on the current location information, the wireless communication terminal device 3 performs highly accurate cell search. be able to. (S409).

Next, the wireless communication terminal apparatus 3 performs other necessary control in step S410. An example of control in step S410 will be described. In other words, in the case of the first embodiment, the user who has entered the non-contact IC card of the wireless communication terminal device 3 against a legitimate peripheral device will enter the non-contact IC card at an unmanned station at the time of participation. There may be cases in which players will participate without force. In order to efficiently deal with such a case, an operation that is different from the behavior of the currently selected category state for a certain period of time despite controlling the threshold value of the moving speed determination unit 305. It is also possible to add a process that detects whether the force has been applied and cancels the operation of the category. For example, when a certain station force gets on an ordinary train with an IC card in force, but there is a station that participates, it is decided to enter without an IC card being pushed. While on the train, it is determined that the vehicle is in a high-speed vehicle such as a train (S402), and the threshold is easy to determine that the vehicle is moving at high speed. Should be determined as a state. However, if you get off the train and stay in a low-speed state for a while, it will not be judged as a high-speed movement state. If this time continues to some extent, the moving speed determination unit 305 performs control such as releasing the state in the high-speed vehicle and returning to the state before entering the station with the non-contact card (S410). In step S410, the release and return are performed in the same manner as in step S407. The moving speed threshold determination unit 304 sets the high speed determination threshold and the low speed determination threshold of the moving speed determination unit 305 to predetermined normal values. This is done by setting. In other words, in this release or return control, the movement speed determination unit 305 realizes a threshold value switching function in conjunction with the movement speed threshold value determination unit 304. Also, the time until the release or return control in Step S410 is several tens of minutes to about one hour, taking into account the time when the train stops at the station, etc., or the time waiting for the user to change trains. Time is preferred.

[0033] As described above, according to the wireless communication terminal device 3 according to Embodiment 1, various detailed information related to the peripheral device stored in advance in the peripheral device is acquired from the peripheral device. Can be used for IJ. Therefore, according to the wireless communication terminal apparatus 3 according to Embodiment 1, efficient cell search can be performed using the location information of the wireless communication terminal apparatus. This will lead to an improvement in the outgoing / incoming call rate, call maintenance rate, and out-of-service return time.

[0034] In addition, according to the wireless communication terminal device 3 according to Embodiment 1, when it is determined that the search parameter and the threshold value for determining the moving speed at the relevant time point are not appropriate, such as when the user has entered the relevant place. The moving speed threshold determination unit 304 has a predetermined normal value, or sets the high speed determination threshold and the low speed determination threshold of the moving speed determination unit 305 to a value before the user enters the corresponding place. When it is confirmed that the user has entered the corresponding location, the search parameter selection unit 307 outputs the cell search parameters before the user enters the corresponding location to the cell movement determination unit 313, and wireless The communication terminal device 3 is returned to a predetermined state. In other words, since wireless communication terminal device 3 according to Embodiment 1 has a backup function in this way, the search parameter setting value of wireless communication terminal device 3 is temporarily invalid. The system operates in a normal state where it can operate with a certain degree of stability, and does not operate for a long period of time with an invalid search parameter or threshold for determining the moving speed. In general, the wireless communication environment is unstable, and perfect movement speed detection / determination cannot be expected. Therefore, this backup function is effective in improving the practicality of the wireless communication terminal device 3.

[0035] Furthermore, according to radio communication terminal apparatus 3 according to Embodiment 1, a standardized non-contact IC Since the card technology is used, when information related to the unique environment of the peripheral device stored in the peripheral device is updated, control according to the environmental conditions such as updating the cell search parameter is also performed by the provider of the wireless communication terminal device. Compared to the case of building an original system, it becomes easier to link with the functions provided by peripheral devices, and an advanced system can be realized easily and inexpensively. Therefore, according to the first embodiment, it is possible to improve the expandability of the communication system incorporating the wireless communication terminal device and improve the service for the user.

[0036] In the first embodiment, the user's moving speed is used to select a category. However, in addition to the moving speed element, a place that is likely to be out of service area such as in an airplane or subway is used. It may be set in advance as a category and extracted by the entry / exit location determination unit 303. It can also include grouping into other categories useful for changing other cell search parameters.

[0037] (Embodiment 2)

FIG. 5 is a block diagram showing a configuration of radio communication terminal apparatus 5 according to Embodiment 2. In FIG. In FIG. 5, the same components as those of FIG.

[0038] The wireless communication terminal device 5 includes a contactless IC card 301, an IC card control unit 302, an antenna 310, a reception unit 311, an entrance / exit location determination unit 501, a frequency list selection unit 502, a memory unit 503 and a frequency switching control unit 504 are mainly configured.

[0039] The entry / exit location determination unit 501 indicates that a user has entered a facility where a peripheral device is provided or is included in the data from the peripheral device output by the IC card control unit 302, or provided by the peripheral device. Time information including that the user has participated from the received facilities, the place information of entry and departure, and the scheduled time of participation is acquired and output to the frequency list selection unit 502.

Based on the stored contents of the memory unit 503, the frequency list selection unit 502 determines whether the corresponding location has already acquired a frequency list in the past based on the entry / exit location information input from the entry / exit location determination unit 501. judge. As a result of the determination, if the frequency list at the corresponding location is acquired, the corresponding frequency list is selected and output to the frequency switching control unit 504.

[0041] For example, when the frequency band used in a country or a specific region is different, the memory unit 503 stores the frequency information used in the location in association with the location information. You can. Specifically, if the user of the wireless communication terminal device 5 has received service at the location in the past, the memory unit 503 displays information on the frequency used at the location at the frequency candidate list. As stored. Therefore, when the location information power extracted by the entrance / exit location determination unit 501 matches a specific location stored in the memory unit 503, the frequency candidate list of the matched location is obtained via the frequency list selection unit 502. It is output to the frequency switching control unit 504.

The frequency switching control unit 504 outputs the input frequency candidate list to the receiving unit 311. The receiving unit 311 preferentially uses the frequency indicated by the frequency list input from the frequency switching control unit 504 and performs a frequency search. In addition, when using an aircraft, the frequency switching control unit 504 uses the fact that the arrival time and the arrival location are divided in advance when entering, and when the arrival time is reached, the frequency switching control unit 504 A frequency list that is likely to be used may be selected. However, in this case, the aircraft may not arrive on time or the arrival location may change. In such a case, when the wireless communication terminal device 5 reaches the arrival time and selects an optimal candidate and performs a search, but does not detect an appropriate frequency, the wireless communication terminal device 5 continues until a certain period. Priority is given to the frequency selected here, but after the period has elapsed, it is possible to get out of the priority search state, or if it is detected that the arrival place has been changed at the time of entry, It is possible to additionally perform processing for canceling the search state prioritized at that time.

[0043] The operation of the wireless communication terminal apparatus 5 configured as described above will be described. As a specific example, for example, suppose that a user moves overseas using an airplane, and then enters the contactless IC card 301 over an entrance / exit gate and then exits at a planned location. At the place of participation, the place determination unit 501 determines the place using the place information (country information) acquired by the IC card control unit 302. The entrance / exit location determination unit 501 outputs the location information obtained as the determination result to the frequency list selection unit 502. The frequency list selection unit 502 selects a frequency list corresponding to the location from the memory unit 503, and sets it in the frequency switching control unit 504. In response to this, the frequency switching control unit 504 outputs information indicating the frequency to the receiving unit 311 with high possibility of being used at the location according to the frequency list. Accordingly, the reception unit 311 performs cell search using the frequency input from the frequency switching control unit 504 with priority.

[0045] As described above, the wireless communication terminal device 5 uses the location information of the place to appear after landing even when the user moves with a typical out-of-range movement such as an overseas movement by aircraft. Cell search with high efficiency.

[0046] Note that the stored frequency list used at this time is not limited to those classified according to the location information obtained from the contactless IC card in the past, but is broadcast information received by wireless communication when receiving the service. They may be classified according to the country code or business operator code included.

[0047] As described above, according to the wireless communication terminal device 5 according to the second embodiment, even when the usage environment of the user's wireless communication terminal device changes significantly in time or place, By using the non-contact IC card 301, location information of the corresponding location can be obtained, and an efficient cell search can be performed at a frequency according to the location.

[0048] (Embodiment 3)

FIG. 6 is a block diagram showing a configuration of radio communication terminal apparatus 6 according to Embodiment 3 of the present invention. The radio communication terminal device 6 controls the frequency switching control unit 504 used in the radio communication terminal device 5 according to the second embodiment at the reception unit 311 of the radio communication terminal device 3 according to the first embodiment. This is characterized by the addition of a cell search function that preferentially uses the frequencies in the corresponding location indicated in the frequency candidate list. 6, the same components as those in FIGS. 3 and 5 are denoted by the same reference numerals, and the description thereof is omitted.

In radio communication terminal apparatus 6, memory section 601 stores the same information as the information stored in memory section 306 according to Embodiment 1 and memory section 503 according to Embodiment 2.

[0050] The entrance / exit location determination unit 602 indicates that a user has entered a facility provided with a peripheral device included in the data from the peripheral device output by the IC card control unit 302, or that the peripheral device provides Time information including the fact that the user participated in the selected facility, the location category of the facility, the location information of the entrance and the scheduled time of entry, and the moving speed threshold judgment unit 304 and the frequency list selection unit Necessary information is output to 502. Next, the operation of radio communication terminal apparatus 6 will be described.

[0052] When the user holds the wireless communication terminal device 6 over a peripheral device, the entry / exit location determination unit 602 outputs information indicating the corresponding location to the frequency list selection unit 502 and at the same time corresponds to the movement speed threshold determination unit 304 Outputs information indicating the category corresponding to the place.

[0053] Thereby, the radio communication terminal device 6 performs cell search by preferentially controlling the reception frequency of the reception unit 311 according to the frequency list read out and selected from the memory unit 601 and assigns it to the category of the corresponding location. A cell search parameter corresponding to the corresponding moving speed is read and selected from the memory unit 306, and the cell movement determining unit 313 can determine cell movement.

[0054] As described above, according to the radio communication terminal device 6 according to Embodiment 3, in addition to the category of the moving speed indicated by the corresponding location information when performing a cell search, Since the cell search is performed using the frequency, the cell search can be performed with higher efficiency.

Industrial applicability

The present invention is useful for a wireless communication terminal device provided with a contactless IC card or the like.

Claims

The scope of the claims

[1] Memory means for storing in advance cell selection information that associates the moving speed of a user with a cell search parameter for cell selection;

Non-contact communication means that communicates with the outside in a non-contact manner to obtain information on a place where the user enters and exits;

Based on the information about the place where the user enters and exits acquired by the non-contact communication means, the movement that sets the moving speed estimation condition for estimating the moving speed of the user at the place where the user enters and exits Speed estimation condition setting means;

A moving speed estimating means for estimating the moving speed of the user in accordance with the set moving speed estimation condition;

Search parameter selection means for selecting cell search parameters for cell selection by referring to the cell selection information using the movement speed estimated by the movement speed estimation means;

Cell movement determination means for determining whether or not there is cell movement according to the cell search parameter for cell selection selected by the search parameter selection means;

A communication terminal device comprising:

2. The wireless communication terminal apparatus according to claim 1, wherein the contactless communication means communicates with the outside using a contactless IC card and acquires information regarding a place where the user enters and exits.

[3] The moving speed estimation condition setting means sets a threshold that is the moving speed estimation condition based on the information about the location acquired by the non-contact communication means, and the cell movement determination means The number of cell movements in time is detected, and the movement speed estimation means compares the detected number of cell movements with the threshold value set by the movement speed estimation condition setting means to determine the number of cell movements. The radio communication terminal apparatus according to claim 1, wherein a moving speed is estimated based on the result of the determination.

[4] The moving speed estimation condition setting means sets the threshold value when the information about the place where the user enters and exits acquired by the non-contact communication means indicates the user's participation from the corresponding place. 4. The wireless communication terminal device according to claim 3, wherein the wireless communication terminal device is returned to a predetermined value before entering the site.

[5] The moving speed estimation condition setting means that the moving speed estimated by the moving speed estimating means is the amount of movement of the place where the person entered, even if the moving speed estimating condition setting means does not acquire the information when the non-contact communication means has participated! 5. The wireless communication terminal device according to claim 4, wherein when it is determined that the difference is different from the tendency, the threshold value is returned to a predetermined value.

[6] The search parameter selection means sets the cell search parameter to the location when the information about the place where the user enters and exits obtained by the non-contact communication means indicates participation from the corresponding location of the user. 2. The wireless communication terminal device according to claim 1, wherein the wireless communication terminal device is returned to a predetermined search parameter before entering or predetermined.

[7] Frequency information memory means for storing frequency list information associating frequencies and places where users have entered and exited in the past,

Schedule information acquisition means for communicating with the outside in a non-contact manner and acquiring the planned location information and scheduled time information scheduled for participation by the user;

A frequency selection means for selecting a frequency by referring to the frequency list information using the scheduled location information at the scheduled time of the scheduled time information;

A radio communication terminal apparatus comprising: frequency switching control means for searching for a frequency selected by the frequency selection means and setting the frequency.

[8] The frequency switching control means may be unable to receive at the frequency set by the frequency switching means within a predetermined time from the scheduled time of participation, or other than the place indicated by the location information 8. The wireless communication terminal device according to claim 7, wherein when it is detected that the player has participated in the area, the search by the frequency selected by the frequency selecting means is canceled.