JP2000287256A - Mobile communication system searching peripheral base station, its searching method and transmitter-receiver adopting it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a mobile communication system where an actual reception state of peripheral base stations is learned (stored) and occurrence of a failure in hand-off is reduced by reflecting the learned reception state onto the searching sequence and to obtain its searching method. SOLUTION: The mobile communication system comprises mobile stations M that make communication within an area where a plurality of base stations B are placed and of a plurality of the base stations B. In this case, each of the base stations B is provided with notice sections 15, 16, 17 that inform the mobile stations M about peripheral base station information including past learning results and each mobile station M is provided with retrieval sections 27, 31, 32 that receive the peripheral base station information including the past learning results from the notice sections and retrieve the peripheral base stations. Thus, the system promotes efficient search of the base stations.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication system having a base station and a mobile station for searching for a nearby base station by a learning function, a search method and a transceiver using the method.

[0002]

2. Description of the Related Art Recently, with the rapid spread of mobile communication systems, it has been desired to improve performance in various aspects. In a mobile communication system, for example, in order to grasp a base station that is a candidate for a handoff destination at the time of handoff,
By measuring the received power of radio waves arriving from base stations other than the currently connected base station, a base station near the currently connected base station is searched.

If the system is composed of a large number of base stations, it is necessary to perform an efficient search to find neighboring base stations from among the base stations in the system in a limited time.

[0004] Therefore, in the conventional peripheral base station search method, information of base stations which are geographically nearby as base stations to be searched is registered in advance in each base station, and the mobile station stores the base station information in the base station information. A base station search is performed based on the base station.

[0005] For example, in order to cope with a handoff process of a mobile station moving at a high speed, it is necessary to preferentially search among neighboring base stations for a base station expected to receive a radio wave of higher received power. .

Therefore, in the conventional peripheral base station search method, in addition to the base station information, information on the distance between the base station for registering the information and the base station to be searched is also registered. Based on the distance information, the search priority is determined such that the priority is higher for peripheral base stations closer to the currently connected base station.

FIG. 1 shows an example of a base station arrangement. In FIG.
Base stations B100 to B118 and base station B100, respectively.
Communication zones Z100 to Z118 covered by B118 to B118
Are shown. The shapes of the communication zones Z100 to Z118 are regular hexagons centered on the base stations B100 to B118.

Hereinafter, an embodiment of a conventional peripheral base station searching method will be described by taking as an example a procedure for searching for a mobile station located in communication zone Z100 and connected to base station B100.

First, in the base station B100, peripheral base stations to be searched by mobile stations connected to the base station B100 are set in advance as base stations B101 to B117. At this time, as a geographical positional relationship between the base station B100 and the peripheral base stations, for example, the base stations from the base station B100 are the base stations B101 to B106, and the next closest base station is the base station B107.
・ B109 ・ B111 ・ B113 ・ B115 ・ B11
7. The farthest base station is base station B108 / B110 / B1
The information of 12, B114, B116, and B118 is also set in the base station B100.

The mobile station connected to base station B100 is:
The peripheral base station information is acquired from the base station B100, and the search target is determined as the base stations B101 to B117.

Subsequently, the mobile station sets the search priority based on the geographical positional relationship of the peripheral base stations included in the peripheral base station information so that the priority is higher for the peripheral base station closer to the base station B100. For example, the base stations with the highest priority are the base stations B101 to B106, and the base stations with the next highest priority are the base stations B107, B109, and B111.
B113, B115, and B117, and the base stations with the lowest priority, which are base stations B108, B110, B112,
B114, B116, and B118 are determined.

The mobile station determines the search order as shown in FIG. 2 on the basis of the priority order, for example, so that the peripheral base station having a higher priority is searched with higher frequency. In the search order of FIG.
The search in B118 is performed by 54 searches, and the search is repeatedly performed using the 54 searches as one cycle. In the one cycle, the base stations B101 to B106 are respectively set to the base station B1 six times.
07 ・ B109 ・ B111 ・ B113 ・ B115 ・ B1
Reference numeral 17 denotes base stations B108, B110, and B112 twice each.
B114, B116, and B118 perform search once.

[0013]

As described above, according to the above-mentioned conventional system, the mobile station moves based on the geographical positional relationship between the base station to which the mobile station is connected and the peripheral base station, that is, the positional relationship between the base stations. The priority order and the search order of the peripheral base station search in the station are determined. However, the mobile station is not always located near the connected base station, and moves freely in the communication area covered by the base station. It is not always applicable to the positional relationship with the base station. Therefore, in the search order determined by the priority order based on the positional relationship between the base stations, a peripheral base station that is far from the mobile station is searched with a priority equal to or higher than that of a nearby base station that is close to the mobile station, and so on. , An inefficient peripheral base station search is performed.

On the other hand, in the above-mentioned conventional system, the search priority is determined so that the closer the base station is, the higher the priority is based on the geographical positional relationship. In the search order determined by the priority based on the distance, there is actually a large geographical distance between neighboring base stations with large received power of incoming radio waves. Inefficient peripheral base station search may be performed, for example, searching in a low priority order, or conversely searching in a high priority order for a nearby base station with low received power because the distance is short.

[0015] Therefore, in the method of searching for a peripheral base station according to the conventional method as described above, an efficient search is not necessarily performed depending on the situation. Therefore, a candidate base station for handoff according to the movement of the mobile station is not performed. There is a problem that the grasp is delayed, and as a result, the handoff fails.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and the base station learns (accumulates) the actual reception status of radio waves arriving from a peripheral base station, and reflects the learned situation on the mobile station in the search order for the peripheral base station. It is therefore an object of the present invention to provide a mobile communication system for efficiently searching for a nearby base station capable of reducing handoff failure, a search method therefor, and this mobile transceiver.

[0017]

According to the present invention, there is provided a mobile communication system comprising a mobile station communicating in an area where a plurality of base stations are provided, and the plurality of base stations, wherein the base station has a learning function of past learning. Notifying means for notifying the mobile station of the peripheral base station information including the result, and the mobile station receiving the peripheral base station information including the past learning result from the notifying means, and searching for the peripheral base station based on the information. And a search means for performing the search.

With the above-described structure, the present invention creates a past learning result accumulated by the base station, transfers the created learning result to the mobile station again, and performs an efficient search process for a neighboring base station reflecting the learning result. This enables a mobile communication system that can reduce failures such as handoffs.

The present invention is also a mobile communication system comprising a mobile station communicating in an area where a plurality of base stations are provided and the plurality of base stations, wherein at least one of the plurality of base stations includes: First notifying means for notifying the mobile station of peripheral base station information including past learning results, and the mobile station receiving peripheral base station information including the past learning results from the first notifying means, and Searching means for determining and searching for the search order of the peripheral base stations, a second notifying means for notifying the base station of a search result of the peripheral base station by the searching means in the mobile station; A mobile communication system having, at a station, storage means for storing the search result notified from the second notification means.

With the above-described structure, the present invention accumulates, by the base station, the results of the neighboring base stations searched by the mobile station, and obtains learning results. Then, by transferring this to the mobile station again and performing an efficient search process of the neighboring base station reflected in the learning result, a reliable search of the surrounding base station becomes possible, and a failure such as handoff can be reduced. A mobile communication system becomes possible.

The present invention is also a mobile communication system comprising a mobile station communicating in an area where a plurality of base stations are provided and the plurality of base stations, wherein at least one of the plurality of base stations includes: First notifying means for notifying the mobile station of peripheral base station information including past learning results, and the mobile station receiving peripheral base station information including the past learning results from the first notifying means, and Searching means for determining and searching for the search order of the peripheral base stations by the mobile station; and in the mobile station, the search result of at least one of the received power and the received power ranking of the peripheral base stations searched by the search means is determined by the base station. A mobile communication system comprising: a second notifying unit for notifying a station; and a storage unit for statistically processing and storing the search result notified from the second notifying unit in the base station. Is Temu.

With the above-described structure, the present invention accumulates information of a peripheral base station given from a mobile station and performs statistical processing on the information to receive accurate information of the peripheral base station from a huge amount of information from the mobile station. Power and received power ranking can be grasped. By notifying the learning result to the mobile station again, the mobile station can search for a very efficient peripheral base station, thereby realizing a mobile communication system capable of reducing failures such as handoffs. it can.

Also, the present invention is a mobile communication system comprising a mobile station communicating in an area where a plurality of base stations are provided and the plurality of base stations, wherein at least one of the plurality of base stations includes: First notifying means for notifying a mobile station of at least one of a search priority and a search order based on peripheral base station information including a past learning result; and, in the mobile station, the search priority from the first notifying means. A search unit that receives at least one of the search orders and determines a search order of the peripheral base stations based on the search order, and in the mobile station, the search result of the peripheral base station by the search unit, A mobile communication system comprising: a second notifying unit that notifies a base station; and a storage unit that stores, in the base station, the search result notified from the second notifying unit.

With the above-described structure, the present invention accumulates information on peripheral base stations provided by a mobile station, determines a search priority or search order based on the information, and directly gives the search priority or search order to the mobile station. As a result, quicker search processing at the mobile station becomes possible, and a mobile communication system that can reduce failures such as handoffs can be realized.

The present invention is also a mobile communication system comprising a mobile station communicating in an area where a plurality of base stations are provided and the plurality of base stations, wherein at least one of the plurality of base stations includes: First notifying means for notifying the mobile station of neighboring base station information including the past learning result, and the mobile station receiving the neighboring base station information including the past learning result from the first notifying means, A search unit that determines a search order of the peripheral base stations based on the current state of reception of the peripheral base stations at the mobile station, and performs a search. A mobile communication system comprising: a second notification unit that notifies the base station; and a storage unit that stores the search result notified from the second notification unit in the base station.

As described above, in the present invention, the learning result obtained by accumulating the information on the peripheral base stations given from the mobile station is supplied again from the base station to the mobile station. The mobile station can determine the optimum order of searching for neighboring base stations by determining the learning result in combination with the current reception status, and can provide a mobile communication system capable of reducing failures such as handoffs. Can be realized.

[0027] The present invention is also a search method using a mobile station and a plurality of base stations that perform communication in an area where a plurality of base stations are provided, wherein the base station includes a peripheral base station including past learning results. A notification step of notifying information to the mobile station, and a search step of receiving, in the mobile station, peripheral base station information including the past learning result from the notification step, and searching for the peripheral base station based on the information. Is a search method having

Even in such a search method, it is possible to reliably search for a nearby base station for the same purpose as in the mobile communication system, and it is possible to provide a search method capable of reducing failures such as handoffs. .

[0029] The present invention is also a search method using a mobile station communicating in an area where a plurality of base stations are provided and the plurality of base stations, wherein at least one of the plurality of base stations has a A first notifying step of notifying the mobile station of neighboring base station information including the learning result of the above, and the mobile station receiving the neighboring base station information including the past learning result from the first notifying step, and A search step of determining a search order of the peripheral base stations and performing a search, and a second notification step of notifying the base station of a search result of the peripheral base station by the search step in the mobile station; And a storage step of storing the search result notified from the second notification step.

Further, the present invention is a search method using a mobile station communicating in an area where a plurality of base stations are provided and the plurality of base stations, wherein at least one of the plurality of base stations has A first notifying step of notifying the mobile station of neighboring base station information including the learning result of the above, and the mobile station receiving the neighboring base station information including the past learning result from the first notifying step, and A search step of determining and searching for the search order of the peripheral base stations, and, in the mobile station, a search result of at least one of the received power and the received power order of the peripheral base stations searched in the search step; And a storage step in which the base station statistically processes and accumulates the search result notified from the second notification step in the base station.

Further, the present invention is a search method using a mobile station communicating in an area where a plurality of base stations are provided and the plurality of base stations, wherein at least one of the plurality of base stations includes A first notification step of notifying a mobile station of at least one of a search priority and a search order based on peripheral base station information including a learning result of:
A search step of receiving at least one of the search priority and the search order from the first notification step, determining a search order of the peripheral base stations based on the search order, and performing a search; A second notifying step of notifying the base station of the search result of the peripheral base station, and an accumulation step of accumulating the search result notified from the second notifying step in the base station. is there.

Further, the present invention is a search method using a mobile station communicating in an area where a plurality of base stations are provided and the plurality of base stations, wherein at least one of the plurality of base stations has A first notifying step of notifying the mobile station of neighboring base station information including the learning result of the above, and the mobile station receiving the neighboring base station information including the past learning result from the first notifying step, and A search step of determining a search order of the peripheral base stations based on the current state of the peripheral base station reception at the station and performing a search, and in the mobile station, a search result of the peripheral base station by the search step,
A search method comprising: a second notification step of notifying the base station; and an accumulation step of accumulating the search result notified from the second notification step in the base station.

The present invention also relates to a mobile transceiver for performing communication in an area where a plurality of base stations are provided, wherein the mobile transceiver receives peripheral base station information including past learning results from the base station, Mobile transmission / reception including a determination unit for determining a search order of base stations, a search unit for searching for a reception status of the peripheral base based on the search order determined by the determination unit, and a communication unit for performing communication based on the search result Machine.

With the above-described structure, the present invention realizes an efficient search for a peripheral base station according to the learning result received from the base station for the same purpose as in the case of the mobile communication system. It is possible to provide a mobile transceiver in which handoff failures and the like are reduced.

The present invention also relates to a mobile transceiver for performing communication in an area where a plurality of base stations are provided, wherein the mobile transceiver receives peripheral base station information including past learning results from the base station, Determining means for determining the search order of the base station; searching means for searching for the peripheral base based on the search order determined by the determining means; and a search result of the peripheral base station by the searching means to the base station. A mobile transceiver having a notifying unit for notifying and a communication unit for performing communication based on the search result of the searching unit.

The present invention also relates to a mobile transceiver for performing communication within an area where a plurality of base stations are provided, wherein the mobile transceiver receives peripheral base station information including past learning results from the base station, Determining means for determining a search order of base stations; searching means for searching the peripheral base based on the search order determined by the determining means and outputting at least one of a received power and a received power order; Is a mobile transceiver having notification means for notifying the base station of at least one of the received power and the received power rank of the peripheral base searched by the base station, and communication means for performing communication based on a search result of the search means. .

The present invention also relates to a mobile transceiver for communicating within an area where a plurality of base stations are provided, wherein the search priority and the search order are determined based on peripheral base station information including past learning results from the base station. Determining means for receiving at least one of the above, and determining the search order of the peripheral base station based on this,
Searching means for searching for the peripheral base based on the search order determined by the determining means, and a notifying means for notifying the base station of a search result of the peripheral base station by the searching means,
And a communication unit that performs communication based on the search result of the search unit.

The present invention is also a mobile transceiver for communicating within an area where a plurality of base stations are provided, wherein the mobile transceiver receives peripheral base station information including past learning results from the base station, Determining means for determining the search order of the peripheral base stations based on station reception status; searching means for searching for the peripheral base based on the search order determined by the determining means; and the peripheral base station by the search means The search results of
The mobile transceiver includes a notification unit that notifies the base station and a communication unit that performs communication based on the search result of the search unit.

As described above, according to the present invention, by further considering the learning result received from the base station and the current reception status, a further optimal search order for neighboring base stations is determined, and the search order is determined accordingly. By performing the search process, it is possible to provide a mobile transceiver capable of reliably searching for a necessary base station at the time of handoff or the like.

[0040]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIG. 1 and FIGS.

FIG. 9 is a block diagram showing an example of a base station according to the embodiment of the present invention, FIG. 10 is a block diagram showing an example of a mobile station according to the embodiment of the present invention,
FIG. 8 is a flowchart for explaining the processing operation of the present invention.

In FIG. 9, the base station B has an antenna 11
, Receiver 13, demodulation unit 14, learning unit (storage unit) 15, and transceiver 1 connected to
6 and a modulation unit 17, and the demodulation unit 14 and the modulation unit 17 are connected to a control station (not shown).

In FIG. 10, a mobile station M has an antenna 1
1, a duplexer 22, a receiver 23,
Demodulation section 24, speaker 28, liquid crystal display 29, synthesizer 25, storage section 26, search order determination section 27
, A microphone 30, a modulation unit 32, and a transceiver 31. Further, the demodulation unit 24 includes the code decoding unit 3
3, a code decoding unit 34, a code decoding unit 35, and communication level determination units 36, 37, and 38.

The mobile communication system according to the present invention comprises the above-described base station B and mobile station M, and performs communication as follows with such a configuration.

That is, the mobile station M on standby or on a call
The supplied RF signal transmitted from the base station B is transmitted to the antenna 2
1 is supplied to the demodulation unit 24 via the duplexer 22 and the receiver 23, and the demodulated demodulated signal is finally output as sound by the speaker 28.
The liquid crystal display screen 29 displays the current communication state and information for operation. Simultaneously with the demodulation of the RF signal, the audio signal provided from the microphone 30 for capturing the voice of the caller is modulated by the modulation unit 32 and is output to a certain synthesizer 25.
The frequency is converted to an RF signal by the transceiver 31 in accordance with the transmission frequency from the antenna, and transmitted from the antenna via the duplexer.

On the other hand, in the base station B, the voice signal provided from the control station is modulated by the modulator 17 and converted into an RF signal by the transceiver 16 based on the transmission frequency provided from the synthesizer 18, and the duplexer 12 and the antenna 11 to the mobile station M.
At the same time, the RF signal transmitted from the mobile station M is taken in via the antenna 11 and the duplexer 12 and frequency-converted by the receiver 13 based on the transmission frequency given from the synthesizer 18, demodulated by the demodulator 14, and demodulated by the demodulator 14. Supplied to By the operation of the base station B,
A call between the mobile station and another specified mobile station is enabled.

In the mobile communication system performing such a basic operation, the process of searching for a nearby base station having a learning function according to the present invention proceeds in the following procedure, and is based on the flowchart shown in FIG. This will be described in detail below with reference to the drawings.

FIG. 1 shows an example of the arrangement of base stations and communication zones according to the present invention. Consider now a procedure for searching for a mobile station located in communication zone Z100 in FIG. 1 and connected to base station B100. .

At this time, as an example, base stations B101 to B106 are set as the neighboring base stations to be searched as base stations adjacent to base station B100, and the mobile station determines the search priority and search order. The embodiment of the method for searching for a nearby base station according to the present invention will be described with reference to FIG.

In the initial state of the base station B100, all mobile stations connected to the base station B100 are, for example, as shown in FIG.
The peripheral base stations are searched in the search order shown in (1) (S1). In this search order, adjacent base stations B101 to B1
06 is only searched for in sequence. In accordance with this search order, the demodulation unit 24 gives the code corresponding to each base station to the code demodulation units 33 to 35, and can simultaneously know the power value and the like of each base station.

Next, the mobile station M (A) accumulates the search result in the accumulation unit 26, creates a list of the received power rankings of the peripheral base stations as shown in FIG.
(S2). At the same time, the other mobile stations M (B) and (C) (not shown) also report the search results to the base station B100. At this time, the received power ranking list may be simply the received power value of each station, or may be both the received power ranking list and the received power value.

On the other hand, the base station B100 receives signals from the mobile stations M (A), (B), and (C) connected to the base station, respectively, as shown in FIG.
In response to the list shown in FIG. 5, for example, a statistical table shown in FIG. 5 is created so as to associate the received power rankings of the two higher-order peripheral base stations with the remaining peripheral base stations, and the search result is learned (S3).

In FIG. 5, it can be seen that the base stations for each rank of the received power are sequentially counted, and the learning is repeated. In this way, data from many mobile stations is accumulated, and a learning result as shown in FIG. 6 is obtained, and is accumulated in the learning unit 15 in FIG.

In parallel with such an accumulation process, the accumulated learning result (which may be one or both of the search priority and the search order) is transmitted from the base station B to the modulator 17, transceiver 16, and duplexer 12. Is notified from the antenna 11 to the connected mobile station M via the network (S4).

The mobile station M that has received the learning result from the base station B100 determines a new search order based on the peripheral base station information. That is, based on the given learning result as shown in FIG. 6, the learning result as shown in FIG. The search is performed in the reflected search order.

That is, when the base station B100 starts learning the search result, the mobile station determines the priority and the search order of the base station to be searched based on the learning result in B100 and the current reception status at its own station ( S5). For example, in the case where the learning result of the base station B100 is as shown in FIG. 6 and the mobile station currently has the first received power of the base station B101 and the second received power of the base station B102, the priority is determined. Degree is base station B
101, base station B102, and base station B103 are high, and base station B106, base station B104, and base station B103 are low.

In this case, the search order is, for example, as shown in FIG.
2, B103), the search is performed with higher frequency, and the base stations with lower priority (here, B104, B105, B106)
Will be searched at a low frequency.

According to the present invention, the situation of receiving from a large number of mobile stations is accumulated in the base station, and the result of the learning and statistical processing is transferred to the mobile station again. The base station to be performed can be recognized. As a result, it is possible to search for a neighboring base station much more efficiently than in the past. Therefore, it is possible to provide a mobile communication system capable of performing a good handoff, a search method therefor, and this mobile transceiver, without failing to search for a nearby base station at the time of handoff.

[0059]

As described above, according to the present invention, when a mobile station searches for a nearby base station, a base station that is expected to have a large incoming wave power can search with higher frequency. Therefore, for example, it is possible to provide a mobile communication system capable of reducing a handoff failure due to a delay in grasping a base station as a handoff destination candidate at the time of handoff, a search method therefor, and this mobile transceiver.

[Brief description of the drawings]

FIG. 1 is an example of a base station and communication zone arrangement according to the present invention.

FIG. 2 is an example of a peripheral base station search order in an embodiment of a conventional method.

FIG. 3 shows an example of a peripheral base station search order in an initial state according to the embodiment of the present invention.

FIG. 4 is an example of a received power ranking notification from a mobile station according to the embodiment of the present invention.

FIG. 5 is an example of a statistical table reflecting the notification of FIG. 4 in the embodiment of the present invention.

FIG. 6 is an example of a statistical table according to the embodiment of the present invention.

FIG. 7 is an example of a peripheral base station search order in the embodiment of the present invention.

FIG. 8 is a flowchart illustrating the processing operation of the present invention.

FIG. 9 is a block diagram illustrating an example of a base station according to the embodiment of the present invention.

FIG. 10 is a block diagram showing an example of a mobile station according to the embodiment of the present invention.

[Explanation of symbols]

B100 to B118 Base station Z100 to Z118 Communication zone covered by base stations B100 to B118 11 Antenna 12 Duplexer 13 Receiver 14 Demodulation unit 15 Learning unit (storage unit) 16 Transceiver 17 Modulation unit 21 Antenna 22 ... Duplexer 23 ... Receiver 24 ... Demodulator 25 ... Synthesizer 26 ... Storage unit 27 ... Search order determination unit 28 ... Speaker 29 ... Liquid crystal screen 30 ... Microphone 31 ... Transceiver 32 ... Modulation unit 33 ... Code decoding unit 34 ... Code decoding Unit 35: Code decoding unit 36: Reception level determination 37: Reception level determination 38: Reception level determination

Claims (15)

[Claims] 1. A mobile communication system comprising a mobile station communicating in an area where a plurality of base stations are provided and the plurality of base stations, wherein the base station transmits peripheral base station information including a past learning result. Notifying means for notifying a mobile station; and mobile means having a searching means for receiving, in the mobile station, peripheral base station information including the past learning result from the notifying means, and searching for the peripheral base station based on the information. Communications system. 2. A mobile communication system comprising: a mobile station communicating in an area where a plurality of base stations are provided; and the plurality of base stations, wherein at least one of the plurality of base stations includes:
First notifying means for notifying the mobile station of neighboring base station information including the past learning result; and, in the mobile station, receiving the neighboring base station information including the past learning result from the first notifying means. A search unit that determines the search order of the peripheral base stations by performing search, and a second notification unit that notifies the base station of a search result of the peripheral base station by the search unit in the mobile station; A mobile communication system having, in a station, storage means for storing the search result notified from the second notification means. 3. A mobile communication system comprising a mobile station performing communication in an area where a plurality of base stations are provided and the plurality of base stations, wherein at least one of the plurality of base stations includes:
First notifying means for notifying the mobile station of neighboring base station information including the past learning result; and, in the mobile station, receiving the neighboring base station information including the past learning result from the first notifying means. A search unit that determines the search order of the peripheral base stations and performs a search, wherein the mobile station determines at least one of the received power and the received power order of the peripheral base stations searched by the search unit, and determines the search result by the base station. A mobile communication system comprising: a second notifying unit that notifies a station; and a storage unit that statistically processes and stores the search result notified from the second notifying unit in the base station. 4. A mobile communication system comprising a mobile station communicating in an area where a plurality of base stations are provided and the plurality of base stations, wherein at least one of the plurality of base stations includes:
First notifying means for notifying the mobile station of at least one of a search priority and a search order based on peripheral base station information including a past learning result; and in the mobile station, the search priority from the first notifying means. A search unit that receives at least one of the search orders, determines a search order of the peripheral base stations based on the search order, and performs a search, wherein, in the mobile station, a search result of the peripheral base station by the search unit, A mobile communication system, comprising: a second notifying unit that notifies a base station; and a storage unit that stores, in the base station, the search result notified from the second notifying unit. 5. A mobile communication system comprising: a mobile station that performs communication in an area where a plurality of base stations are provided; and the plurality of base stations, wherein at least one of the plurality of base stations includes:
First notifying means for notifying the mobile station of neighboring base station information including past learning results; and receiving, in the mobile station, neighboring base station information including the past learning results from the first notifying means, A search unit that determines a search order of the peripheral base stations based on a current state of reception of the peripheral base stations at the mobile station and performs a search, wherein, in the mobile station, a search result of the peripheral base station by the search unit is obtained. A mobile communication system comprising: a second notification unit that notifies the base station; and a storage unit that stores the search result notified from the second notification unit in the base station. 6. A search method using a mobile station communicating in an area where a plurality of base stations are provided and the plurality of base stations, wherein the base station transmits peripheral base station information including past learning results to the base station. A search step of notifying a mobile station, and a search step of, in the mobile station, receiving peripheral base station information including the past learning result from the notification step, and performing a search for the peripheral base station based on the information. Method. 7. A search method using a mobile station communicating in an area where a plurality of base stations are provided and the plurality of base stations, wherein at least one of the plurality of base stations includes:
A first notification step of notifying the mobile station of neighboring base station information including a past learning result; and the mobile station receiving the neighboring base station information including the past learning result from the first notifying step, and A search step of determining the search order of the peripheral base stations and performing a search, and a second notification step of notifying the base station of a search result of the peripheral base station by the search step in the mobile station; And storing the search result notified from the second notification step in the station. 8. A search method using a mobile station communicating in an area where a plurality of base stations are provided and the plurality of base stations, wherein at least one of the plurality of base stations includes:
A first notification step of notifying the mobile station of neighboring base station information including a past learning result; and the mobile station receiving the neighboring base station information including the past learning result from the first notifying step, and A search step of determining and searching for the search order of the peripheral base stations, and in the mobile station, the search result of at least one of the received power and the received power order of the peripheral base stations searched in the search step is determined by the base station. A search method, comprising: a second notification step of notifying a station; and an accumulation step of statistically processing and accumulating the search result notified from the second notification step in the base station. 9. A search method using a mobile station communicating in an area where a plurality of base stations are provided and the plurality of base stations, wherein at least one of the plurality of base stations includes:
A first notification step of notifying a mobile station of at least one of a search priority and a search order based on peripheral base station information including a past learning result; and, in the mobile station, the search priority from the first notification step. A search step of receiving at least one of the search orders and determining a search order of the peripheral base stations based on the search order, and performing a search, in the mobile station, a search result of the peripheral base station by the search step, A search method, comprising: a second notification step of notifying a base station; and an accumulation step of accumulating the search result notified from the second notification step in the base station. 10. A search method using a mobile station communicating in an area where a plurality of base stations are provided and the plurality of base stations, wherein at least one of the plurality of base stations includes:
A first notification step of notifying a mobile station of peripheral base station information including a past learning result; and the mobile station receiving the peripheral base station information including the past learning result from the first notification step, and A search step of determining a search order of the peripheral base stations based on the current state of the peripheral base station reception at the mobile station, and performing a search; and in the mobile station, a search result of the peripheral base station by the search step. A second notification step of notifying the base station; and a storage step of, in the base station, storing the search result notified from the second notification step. 11. A mobile transceiver for performing communication in an area where a plurality of base stations are provided, comprising: receiving peripheral base station information including past learning results from said base station; A mobile transceiver comprising: a determination unit that determines a search order; a search unit that searches for a reception status of the peripheral base based on the search order determined by the determination unit; and a communication unit that performs communication based on the search result. 12. A mobile transceiver for performing communication within an area where a plurality of base stations are provided, comprising: receiving peripheral base station information including past learning results from said base station; Determining means for determining a search order; searching means for searching for the peripheral base based on the search order determined by the determining means; notification for notifying the base station of a search result of the peripheral base station by the searching means. And a communication unit that performs communication based on the search result of the search unit. 13. A mobile transceiver for performing communication in an area where a plurality of base stations are provided, comprising: receiving peripheral base station information including past learning results from said base station; Determining means for determining a search order; searching means for searching the peripheral base based on the search order determined by the determining means and outputting at least one of received power and received power ranking; A mobile transceiver comprising: a notifying unit that notifies the base station of at least one of the received power and the received power ranking of the peripheral base; and a communication unit that performs communication based on a search result of the search unit. 14. A mobile transceiver for communicating within an area where a plurality of base stations are provided, wherein at least one of a search priority and a search order based on peripheral base station information including past learning results from said base station. Determining means for determining the search order of the peripheral base stations based on the received information, searching means for searching for the peripheral base based on the search order determined by the determining means, A mobile transceiver comprising: a notification unit that notifies a search result to the base station; and a communication unit that performs communication based on the search result of the search unit. 15. A mobile transceiver for performing communication within an area where a plurality of base stations are provided, comprising: receiving peripheral base station information including past learning results from said base station; Determining means for determining a search order of the peripheral base stations based on a situation; searching means for searching for the peripheral base based on the search order determined by the determining means; and a search result of the peripheral base station by the search means. And a communication unit that performs communication based on the search result of the search unit.