JPH10145861A - Radio base station transmission and reception device of mobile communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio base station transmission and reception device which can pass data received from one radio mobile station to a radio line control unit while maintaining their reception order irrelevantly to the length of the data and the load state of a wired line. SOLUTION: A signal repeating part 22 manages the wired line numbers of usable wired lines and the number of the usable wired lines by following a wired line managing procedure 22-1. Then when data is received from a mobile station 3-1, etc., the individual number of the mobile station is found by following a mobile station individual number analyzing procedure 22-2 and and a wired line allocating procedure 22-3 is followed to determine the number of a wired line to be allocated for the transmission of the receive data according to the corresponding individual number, the current usable wired line numbers, and the number of the wired lines.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio base station transmitting / receiving apparatus for a mobile communication system.

[0002]

2. Description of the Related Art FIG. 5 shows a radio base station transmitting / receiving apparatus 2 which is an example of a radio base station transmitting / receiving apparatus in a conventional mobile communication system.
FIG. 3 is a block diagram showing a configuration of a 0. As shown in FIG.
The radio base station transmitting / receiving device 20 includes a plurality of mobile stations 30-
1 to 30-n for transmitting and receiving data via a wireless line, and is configured to be connected to a wireless line control device (not shown) through a plurality of wired lines # 0 to # 3.

[0003] As shown in the figure, the radio base station transmitting / receiving apparatus 20 comprises wired line control units 201-1 to 201-4, a signal relay unit 202, and radio line control units 203-1 to 203-n. .

[0004] Radio line control units 203-1 to 203-n
Receives data from each of the wireless mobile stations 30-1 to 30-n, and delivers each received data to the signal relay unit 202. The signal relay unit 202 determines which of the wired lines # 0 to # 3 is to be allocated to each of the received data by executing a predetermined wired line load distribution procedure (software) 202-1. Handover to a wired line control unit corresponding to the wired line assigned to each. The wired line control units 202-1 to 201-4 transmit the respective received data transferred from the signal relay unit 202 to the wireless line control devices (not shown) via the wired lines # 0 to # 3, respectively. hand over.

FIG. 6 shows a flow of a wire line load distribution procedure 202-1 executed by the signal relay section 202. As shown in FIG. 6, the signal relay unit 202 checks the use status of the wired lines # 0 to # 3, and allocates the received data to the vacant wired line among the wired lines # 0 to # 3 (step 301-308). Each received data is sent to the wired line control unit corresponding to the wired line assigned in this way, and is sent out to the corresponding wired line.

[0006]

By the way, when performing packet communication in a mobile communication system, each received data from one radio mobile station receives a radio channel control device (shown in the figure) while maintaining the reception order. Zu) should be reached. However, in the conventional technique described above, the mobile station 3
Depending on the length of the data received from 0-1 to 30-n and the load status of the wired lines # 0 to # 3, the order in which the data received by the wireless base station transmitting / receiving device 20 is replaced with the respective receiving order. Therefore, there is a problem that the data may reach a wireless channel control device (not shown).

The present invention has been made in view of such circumstances, and regardless of the length of data and the load on a wired line, the order of receiving each data received from one wireless mobile station is determined. It is an object of the present invention to provide a wireless base station transmitting / receiving device that can be transferred to a wireless channel control device while maintaining it.

[0008]

The invention according to claim 1 is
A wireless base station transmitting / receiving apparatus for transmitting / receiving data to / from a plurality of wireless mobile stations via a wireless line and transmitting / receiving data to / from a wireless line control apparatus via a plurality of wired lines, receives data from the wireless mobile station. Mobile station individual number analysis means for obtaining the individual number of the wireless mobile station, and monitoring the status of the plurality of wired lines, and managing the number of available wired lines and the number of available wired lines. Wired line management means, and, when data is received from the wireless mobile station, an individual number of the wireless mobile station determined by the mobile station individual number analysis means, and an available number determined by the wired line management means. A wired line allocating means for determining a wired line number to be allocated to transmission of received data from the wireless mobile station based on the wired line number and the number of wired lines. It is summarized as a radio base station transceiver of the mobile communication system according to claim.

According to a second aspect of the present invention, the wired line allocating means includes: an individual number of the wireless mobile station for each combination of a usable wired line number and the number of wired lines determined by the wired line managing means; The wireless base station transmitting / receiving apparatus of a mobile communication system according to claim 1, wherein a table defining a correspondence relationship with the wired line number is stored, and the wired line number is determined using the table. And

According to a third aspect of the present invention, the wired line allocating means includes: an individual number of the wireless mobile station for each combination of an available wired line number and the number of wired lines determined by the wired line managing means; A table defining a correspondence relationship with the wired line number is stored, and the individual number of the wireless mobile station determined by the mobile station individual number analysis unit is set to the number of available wired lines determined by the wired line management unit. 2. The radio base station transmitting / receiving apparatus according to claim 1, wherein the remainder obtained by dividing by the radio base station is used as an individual number corresponding to the radio mobile station, and the table is used to determine a wire line number. Is the gist.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a wireless base station transmitting / receiving apparatus 2 of a digital mobile communication system according to an embodiment of the present invention, and FIG. 2 is a view showing contents of a wired line number assignment table in the wireless base station transmitting / receiving apparatus 2. 3 and 4 are flowcharts for explaining the operation of the present embodiment.

A. First, the configuration of a mobile communication system and a device according to the present embodiment, which is a component of the mobile communication system, will be described with reference to FIG. As shown in FIG. 1, a mobile communication system to which the present embodiment is applied includes a radio channel control device (not shown), a radio base station transmitting / receiving device 2 according to the present embodiment,
It is configured by mobile stations 3-1 to 3-3.

The wireless base station transmitting / receiving apparatus 2 according to the present embodiment includes a wired line control unit 21-1 to 21-4 connected to the wired lines # 0 to # 3, a signal relay unit 22, It has control units 23-1 to 23-6.

In the present embodiment, the signal relay unit 22 performs a wired line management procedure 2 for monitoring the status of the wired lines # 0 to # 3.
2-1, a mobile station individual number analysis procedure 22-2 for analyzing the individual number of the mobile station that is the transmission source of the received data from the received data, and a wired line for allocating a wired line for transmitting the received data. And a line allocation procedure 22-3. These are the most characteristic software in this embodiment.

The signal relay unit 22 stores a wired line number assignment table shown in FIG. 2, and the assignment of wired lines in the wired line assignment procedure 22-3 is performed by referring to this table. This wired line number assignment table is a table for associating the individual number of each mobile station with the number of a wired line that transmits received data from the mobile station.

In this embodiment, the data received from the mobile station can be transmitted to the radio network controller using a maximum of four lines # 0 to # 3. In some cases, available lines may be, for example, three lines, two lines, and one line. Therefore, in the table shown in FIG. 2, the correspondence between each mobile station individual number and the wired line number is defined for each available state of each line.

For example, when four lines can be used,
In FIG. 2, the contents are shown in the column “when four lines are used”, and wired line numbers 0 to 3 are respectively associated with the individual numbers 0 to 3 of the mobile stations. For mobile station numbers of 4 or more, the same correspondence as that of 0 to 3 is repeated, and mobile station numbers 4 to 7 and mobile station numbers 8 to 1 are repeated.
Wired line numbers 0 to 3 are associated with 1,.

Next, the correspondence when three lines can be used is shown in the column of "when three lines are used" in FIG. Here, when three lines can be used, the wired lines # 1, # 2, and # 3 can be used, the wired lines # 0, # 2, and # 3 cannot be used, and the wired line #
When 0, # 1, and # 3 are unavailable, the wired lines # 0, #
There are four possible cases where # 1 and # 2 cannot be used.

Therefore, the correspondence between each mobile station individual number and the wired line number is defined for each of these cases. In these cases, since there are only three available lines, three consecutive mobile station individual numbers are defined as one unit.
Three types of wired line numbers are periodically assigned. This is basically the same when two lines are used and one line is used.

In order to determine the wired line number to be assigned to the transmission of the received data with reference to this table, the individual number of the mobile station that is the source of the received data and the wired line #
It is necessary to obtain the number of usable wired lines and the number of usable wired lines among 0 to # 3 in advance. In the present embodiment, the necessary information is acquired by executing the mobile station individual number analysis procedure 22-2 and the wired line management procedure 22-1.

B. Next, the operation of the embodiment of the present invention will be described with reference to FIGS.
This will be described in detail with reference to FIGS.

The signal relay unit 22 always executes the wire line number acquisition process (corresponding to the wire line management procedure 22-1) shown in the flow shown in FIG.
The monitoring of -1 to 21-4 is performed, and the available wired lines and the number of wired lines are obtained. That is, the signal relay unit 22
First, the number of wired lines is cleared, and n is initialized to 0 (step 101 in FIG. 3). Next, wired line #n
(# 0 in this case) is checked, and if normal, the number of wired lines is updated and the wired line number n is stored, and the next wired line is checked. If the wired line is abnormal, the next wired line is checked. As described above, checks are performed for the number of wired lines used in the wireless base station transmitting / receiving apparatus (steps 102 to 106).

When data is received from the mobile station by the radio channel control unit, the signal relay unit 22 executes a data transmission process shown in FIG. First, the signal relay unit 22 executes the mobile station individual number analysis procedure 22-2 (step 2).
01). More specifically, for example, the wireless line control unit 23
Assuming that -1 has received the data from the mobile station 3-1, the signal relay unit 22 receives the received data from the radio channel control unit 23-1, and analyzes the mobile station individual number from the received data.

Next, the signal relay section 22 executes a wired line allocation procedure 22-3 (step 202). More specifically, the signal relay unit 22 first obtains the mobile station individual number obtained by executing the above-described mobile station individual number analysis procedure 22-2 by executing the above-described wired line management procedure 22-1. Divide by the number of available wired lines. The remainder of the division is used as a mobile station individual number, and a wired line number corresponding to the current state of the wired line and corresponding to the mobile station individual number is obtained from the table shown in FIG. A wired line corresponding to the number is allocated to transmission of received data (step 202).

For example, the number of available wired lines is four, and the individual number of the mobile station that is the source of the received data is seven.
In the case of, the remainder obtained by dividing 7 by 4 is 3. Therefore, this 3 is used as the mobile station individual number, and the wired line number 3 corresponding to the mobile station individual number 3 when using 4 lines is obtained from the table.
Wired line # 3 corresponding to this wired line number 3 is allocated to the received data from the mobile station, and the received data is transmitted via the allocated wired line # 3 (step 2).
03).

Since the signal relay unit 22 constantly monitors the state of the wired line according to the wired line management procedure 22-1, as described above, if a failure occurs in the wired line # 3, for example, the subsequent wired line By executing the management procedure 22-1, the number of available wired lines changes from four to three.

In this case, when the signal relay unit 22 executes the wired line allocation procedure 22-3, the remainder obtained by dividing the individual number 7 of the mobile station that is the source of the received data by 3 becomes 1, and this 1 becomes 1 It will be used instead of the mobile station individual number 7. Therefore, in the table shown in FIG. 2, the wire line number 1 is selected from the wire line numbers 0, 1, and 2 that can be used when three lines are used, and the wire line # of the wire line number 1 is selected.
1, the received data from the mobile station individual number 7 is transmitted.

In this embodiment, data received from the same radio mobile station is transmitted to the radio channel controller in the order of the data transmitted by the radio mobile station without being affected by the data length or the use status of the wired line. Can be passed. Therefore,
Packet communication can be performed.

[0029]

As described above, according to the present invention, according to the present invention, data received from the same mobile station is always assigned to the same wired line, so that each received data has its own data length. Without being affected by the load condition of the wired line, the packet is delivered to the wireless line control device in a state where the receiving order is maintained, so that there is an effect that packet communication can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a wireless base station transmitting / receiving apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a correspondence table between mobile station individual numbers and wired line numbers in the embodiment.

FIG. 3 is a flowchart showing a processing flow of a wired line number acquisition process in the embodiment.

FIG. 4 is a flowchart showing a processing flow of a data transmission process in the embodiment.

FIG. 5 is a block diagram showing a configuration of a conventional radio base station transmitting / receiving apparatus.

FIG. 6 is a flowchart showing a processing flow of a wire line load distribution process in the same device.

[Explanation of symbols]

 # 0 to # 3 Wired line 2 Wireless base station transceiver 21-1 to 21-4 Wired line control unit 22 Signal relay unit 22-1 Wired line management procedure 22-2 Mobile station individual number analysis procedure 22-3 Wired line allocation Procedure 23-1 to 23-6 Radio channel controller 3-1 to 3-3 Mobile station

Claims (3)

[Claims] 1. A wireless base station transmitting / receiving apparatus for transmitting / receiving data to / from a plurality of wireless mobile stations via a wireless line and transmitting / receiving data to / from a wireless line control apparatus via a plurality of wired lines. Each time data is received from the mobile station, a mobile station individual number analyzing means for obtaining an individual number of the wireless mobile station; monitoring the status of the plurality of wired lines; A wired line managing means for managing the number of lines, and, when data is received from the wireless mobile station, an individual number of the wireless mobile station determined by the mobile station individual number analyzing means, and a number determined by the wired line managing means. Wire line assignment for determining the number of the wire line to be assigned to the transmission of the reception data from the wireless mobile station based on the available usable wire line number and the number of wire lines And a radio base station transmitting / receiving apparatus for a mobile communication system. 2. The system according to claim 1, wherein the wired line allocating unit is configured to determine an individual number of the wireless mobile station and the wired line number for each combination of an available wired line number and the number of wired lines determined by the wired line managing unit. The wireless base station transmitting / receiving apparatus of a mobile communication system according to claim 1, wherein a table defining the correspondence is stored, and the wired line number is determined using the table. 3. The wired line allocating means includes: for each combination of an available wired line number and the number of wired lines determined by the wired line managing means, an individual number of the wireless mobile station and the wired line number; A table defining the correspondence is stored, and the remainder obtained by dividing the individual number of the wireless mobile station obtained by the mobile station individual number analyzing means by the number of usable wired lines obtained by the wired line managing means is stored. Use as an individual number corresponding to the wireless mobile station,
The wireless base station transmitting / receiving apparatus of a mobile communication system according to claim 1, wherein the wired line number is determined using the table.