JP3251559B2 - Multi-code transmission processor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a DS (Direct Sequential).
The present invention relates to a method for controlling a baseband signal processing unit during multicode transmission in a CDMA (Code Division Multiple Access) wireless communication system.

[0002]

2. Description of the Related Art Conventionally, in a DS-CDMA radio communication system, as a transmission method for coping with a temporal variation of a user source rate, a method of changing a channel transmission rate by changing a spreading factor (hereinafter referred to as "shift up"). / Shift-down transmission "). In this shift-up / shift-down transmission, only one baseband signal processing unit is required to perform signal spreading and despreading. However, if an extremely high transmission speed is required, such transmission is performed. It is difficult to realize a baseband signal processing unit corresponding to the speed. Therefore, in practice, up-shift / down-shift transmission is used in combination with multi-code transmission described below.

[0003] Multi-code transmission is a transmission method in which information of one user is simultaneously transmitted on a plurality of channels by using a plurality of codes having the same spreading factor. In this multi-code transmission, the baseband signal processing units are required for the number of channels at the time of transmission, and simultaneously control the baseband signal processing units for the number of channels according to the transmission order of user data and power control. There is a need. However, controlling all the baseband signal processing sections independently and simultaneously by the baseband control section or the base station control section has problems in terms of the load on the control bus and the high speed.

In consideration of the above problems, a CDMA radio communication apparatus employing multi-code transmission is provided with a plurality of baseband control units for controlling a baseband signal processing unit. The configuration is such that the baseband signal processing units are allocated by the number within the range that can be controlled simultaneously.

In such a configuration, in order to simultaneously control the baseband signal processing units belonging to different baseband control units, information on the transmission order and transmission power is exchanged between all the baseband control units without delay. It is necessary, but it is difficult to achieve. For this reason, only the baseband signal processing units belonging to each baseband control unit are simultaneously processed.

Therefore, in the wireless communication apparatus having the above configuration, one piece of user information is assigned to a baseband signal processing section belonging to one baseband control section, and
Processed at the same time.

[0007]

However, in the above-mentioned conventional CDMA radio communication apparatus, when a request for multi-code transmission occurs, the number of available baseband signal processing units belonging to a certain baseband control unit is set to a desired value. If the number is smaller than the number of codes, there is a problem that the baseband control unit cannot perform multicode transmission.

For example, when a communication request in 6 multicodes is generated, if the number of available baseband signal processing units belonging to a certain baseband control unit is less than 6, this baseband control unit: Communication with 6 multicodes cannot be performed. At this time, if the number of available baseband signal processing units belonging to different baseband control units is included, even if six or more baseband signal processing units can be secured, as described above, these baseband signal processing units are simultaneously operated. Since it cannot be controlled, it cannot respond to user requests.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a multi-code transmission processing device for transmitting a signal at a high speed by effectively using an unused baseband signal processing unit. With the goal.

[0010]

The gist of the present invention is that a transmission performed by a baseband signal processing unit belonging to a certain baseband control unit is transmitted to a baseband signal belonging to another baseband control unit. By substituting the processing unit, the number of baseband signal processing units required for the required multi-code transmission is secured under the baseband control unit.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first aspect of the present invention is directed to a plurality of control means for controlling at least one signal processing means for executing multicode transmission, and a monitoring means for monitoring an operation state of the signal processing means. The one of the control means is selected with reference to the monitoring result of the monitoring means, and the processing performed by one of the signal processing means controlled by the selected control means is controlled by another control means. And a rearrangement processing unit that substitutes unused signal processing units among the signal processing units.

[0012] According to this configuration, even when the unused signal processing units by the number required for the required multi-code transmission do not remain under the control of one control means, they belong to the control of one control means. By substituting the processing executed by the signal processing means with the signal processing means belonging to another control means, the number of unused signal processings equal to the required number of multicodes can be controlled under one control means. Since the means can be secured, the multi-code transmission can be executed by effectively using the unused signal processing means.

[0013] A second aspect of the present invention, in the first aspect, employs a configuration in which the relocation processing means selects a control means for controlling signal processing means having a number of channels equal to or more than the number of channels necessary for multicode transmission.

According to this configuration, the control means whose total number of signal processing means to be controlled is larger than the number of channels necessary for executing the requested multi-code transmission depends on whether or not all the signal processing means are unused. Instead, it can be a control means for controlling the signal processing means for executing the requested multi-code transmission, so that it can cope with a case where a plurality of multi-code transmissions are requested from an upper station.

According to a third aspect of the present invention, in the first aspect, the rearrangement processing means is configured to control unused signal processing means controlled by the selected control means based on the number of channels required for multicode transmission. A configuration is adopted in which another control means performs processing substitution based on the result obtained by subtracting the number.

According to this configuration, the rearrangement processing means includes, among the signal processing means controlled by the selected control means, the number of the signals being processed which is less than the number of channels of the requested multicode transmission. In order to cause the processing means to perform the processing alternative, unused signal processing means can be secured under the selected control means by the requested number of multicodes. Therefore, it is possible to cope with a case where a multi-code transmission with various numbers of codes is requested from the upper station.

According to a fourth aspect of the present invention, in the first aspect, the rearrangement processing means subtracts the number of unused signal processing means to be controlled from the number of channels required for multicode transmission. A configuration is adopted in which the control means is selected so as to be minimum.

According to this configuration, the rearrangement processing means can reduce the frequency of performing the substitution process, and thus can more easily execute the multicode transmission requested from the upper station. Furthermore, among the control means for controlling the signal processing means capable of executing the multi-code transmission, the control means having the largest total number of unused signal processing means remaining under the control is preferentially selected, so that the control load distribution is controlled. Can be achieved.

According to a fifth aspect of the present invention, in the first aspect, the rearrangement processing means obtains a result obtained by subtracting the number of unused signal processing means to be controlled from the number of channels required for multicode transmission. , The control means is selected such that it is smaller than the total number of unused signal processing means controlled by another control means and is minimized.

According to this configuration, the relocation processing means can execute the multi-code transmission requested by the upper station and can control the signal processing means capable of minimizing the frequency of performing the substitution processing. Since the means can be selected, the multi-code transmission requested from the upper station can be executed more effectively.

According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the rearrangement processing means is a control means suitable for controlling signal processing means for executing multicode transmission. When the means cannot be selected, a configuration is adopted in which a higher-level station is notified to execute shift-up / shift-down transmission instead of multicode transmission.

According to this configuration, the rearrangement processing means notifies the higher-level station that the transmission that cannot be performed by the multicode transmission is performed by the shift-up / shift-down transmission. Can be executed reliably.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the rearrangement processing means reserves in advance any of the signal processing means controlled by the control means as unused. In addition, a configuration is employed that includes a reservation unit that causes the reserved signal processing unit to be used when executing multicode transmission.

According to this configuration, the rearrangement processing means secures the signal processing means in advance in preparation for various multicode transmissions. Can be performed without performing the above.

An eighth aspect of the present invention, in the seventh aspect, employs a configuration in which the reservation means uses the secured signal processing means when executing a new single code transmission.

According to this configuration, when the signal processing means for executing the single code transmission is insufficient, the reservation means causes the reserved signal processing means to be used, thereby affecting the execution of the single code transmission. Without giving it, the multi-code transmission required from the upper station can be executed reliably.

A ninth aspect of the present invention provides a base station apparatus comprising:
The configuration including the multicode transmission processing device according to the eighth to eighth aspects is adopted.

The radio communication terminal apparatus according to the tenth aspect of the present invention employs a configuration for performing radio communication with the base station apparatus according to the ninth aspect.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1) FIG. 1 is a block diagram showing a configuration of a multicode transmission processing apparatus according to Embodiment 1 of the present invention.

The multi-code transmission processing device according to the first embodiment transmits user signals by two methods, single code transmission and multi-code transmission.

First, at the time of reception, the radio transmitting / receiving unit 1
Numeral 02 amplifies and demodulates the radio signal received by the antenna 101 and outputs it to the spread multiplexing unit 103 as a digital signal. Spreading multiplexing section 103 outputs the output signal of radio transmitting / receiving section 102 to baseband signal section 105.

The baseband signal section 105 includes M baseband control sections 1 controlled by the base station control section 104.
Having 05a ₁ ~105a _M. Each baseband control unit has N baseband signal processing units under its control, controls these baseband signal processing units, and operates according to wireless transmission timing. For example, the baseband control unit 105a ₁
controlling the b ₁₁ ~105b _1N. Similarly, the baseband control unit 105a _M includes a baseband signal processing unit 105b _M1
１０５105b Control _MN . Thus, based control structure of the band signal processing unit, what is composed of two hierarchies of the base station control unit 104 and a plurality of baseband control unit 105a ₁ ~105a _M is because the control bus load reduction is there.

Baseband control units 105a _{1 to} 105a _M
Each of the baseband signal processing units belonging to the sub-group despreads the signal using a different unique spreading code. Specifically, of the baseband signal processing unit, which is selected by the base station controller 104, under the control of the baseband controller 105a ₁ ~105a _M, spreading multiplexing unit 1
03 is spread and output to the separation / combination circuit unit 106.

The separating / combining circuit 106 combines the output signals of the respective baseband signal processing sections and connects them on the wired side (not shown).
Output to

Next, at the time of transmission, the separation / synthesis circuit unit 106 outputs a user signal sent from a wired side (not shown) to the baseband signal unit 105. Specifically, the separation / combination circuit unit 106 separates a user signal sent from the wired side and outputs the user signal to the baseband signal processing unit selected by the base station control unit 104.

In the baseband signal section 105, the baseband signal processing section selected by the base station control section 104 spreads the output signal of the separation / combination circuit section 106 using different unique spreading codes, and To the spread multiplexing unit 103.

Spreading multiplexing section 103 multiplexes the output signals of each baseband signal processing section, spreads the multiplexed signal with a spreading code for distinguishing cells or sectors, and then uses the spread signal as a digital signal as a radio transmission / reception section. Output to 102.

Radio transmitting / receiving section 102 modulates the digital output signal of spread multiplexing section 103 by a modulation method such as FSK, amplifies the modulated signal, and transmits the amplified signal from antenna 101.

The base station control section 104 receives an inter-station control signal, which is an instruction from a higher-level station (not shown), and receives a radio transmission / reception section 102, a spread multiplexing section 103, a baseband signal section 105, and a demultiplexing section. The control of the circuit unit 106 is performed.

Further, when receiving a new transmission request from a higher-level station (not shown), the base station control section 104 uses the transmission processing section provided therein to transmit the baseband signal section 10.
According to the usage status of the baseband signal processing unit in 5, the baseband control unit to which the baseband signal processing unit that executes the requested transmission belongs is selected.

After that, the base station control section 104 controls the selected baseband control section and causes the baseband signal processing section belonging to this baseband control section to execute the above transmission.

Here, the details of the transmission processing section will be described with reference to FIG.

FIG. 2 is a block diagram showing a configuration of a transmission processing section provided in base station control section 104 of the multicode transmission processing apparatus according to the first embodiment.

In the transmission processing unit 201, the use status monitoring unit 202 monitors the use status of all the baseband signal processing units in the baseband signal unit 105, and has a table indicating the use status. FIG. 3 shows an example of the contents of this table. 3, the baseband signal processing section accommodated in the respective subordinate base band controller 105a ₁ ～105A _3, unused, 1
The numbers of baseband signal processing units during execution of code transmission, execution of two codes, execution of three codes, and execution of four codes are shown in order from the top. Note that the description after 5 code transmission is omitted. Where 1
Code transmission is single code transmission, and transmission from two codes to four codes is multicode transmission.

The use state monitoring unit 202 sends the contents of the table as shown in FIG.

The control card selecting section 203 refers to the table contents sent from the use state monitoring section 202 and performs the requested transmission according to whether the requested transmission is single code transmission or multi-code transmission. A baseband control unit that controls a baseband signal processing unit to be executed is selected. A specific selection method will be described below.

If the requested transmission is a single code transmission, the control card selecting section 203 refers to the table contents sent from the use state monitoring section 202 and controls the unused baseband signal processing section under its control. Is selected, and the selection result is sent to the rearrangement processing unit 204.

On the other hand, if the requested transmission is a multi-code transmission, the control card selecting unit 203 refers to the table contents sent from the use status monitoring unit 202 and performs the following steps according to the following steps. A baseband control unit that controls a baseband signal processing unit that executes the transmitted data.

First, as a first step, the control card selecting section 203 calculates the number CH of new baseband signal processing sections required for executing multicode transmission for all baseband control sections by the following equation. Calculate _need .

CH _need = CH _request −CH _null (1) Here, CH _request is the requested number of multicodes, and CH _null is the number of unused baseband signal processing units belonging to the own baseband control unit. Is a number.

As a second step, the control card selector 2
03 leaves candidates satisfying the following expression among all the baseband control units.

CH _single > CH _need (2) Here, CH _single is the number of baseband signal processing units belonging to the baseband control unit and performing single code transmission.

As a third step, the control card selector 2
In step 03, among the baseband control units that are candidates in the second step, those that satisfy the following expression are left as candidates.

CH _other > CH _need (3) Here, CH _other is the total number of unused baseband signal processing units belonging to other baseband control units.

As a fourth step, the control card selecting unit 2
03 selects a baseband control unit that has the minimum CH _need among the baseband control units that have been candidates in the third step as the baseband control unit that executes the requested multicode transmission. When the candidate baseband control unit cannot be selected, the control card selection unit 203 determines that the requested multicode transmission cannot be executed.

According to the above selection method, the baseband control unit considering the control load distribution is selected. Also,
The CH _need of the selected baseband control unit can take a positive or negative value.

The baseband control unit having a positive CH _need is a baseband control unit that can execute a requested multicode transmission by an alternative process described later, and is newly added when the multicode transmission is executed. The total number of necessary free baseband signal processing units corresponds to the minimum.

A baseband control unit having a negative CH _need is a baseband control unit that can execute a requested multicode transmission only by a subordinate baseband signal processing unit without depending on an alternative process described later. Out of the department
The total number of unused baseband control units under its control corresponds to the largest one.

The control card selecting section 203 outputs to the rearrangement processing section 204 the number of newly required baseband signal processing sections CH _need in the baseband control section selected as described above.

The above is the selection method by the control card selection unit 203.

The relocation processing unit 204 transmits the baseband belonging to the baseband control unit selected by the control card selection unit 203 by a method according to whether the requested transmission is single code transmission or multicode transmission. Causes the signal processing unit to execute the requested transmission.

When the requested transmission is a single code transmission, the rearrangement processing section 204 transmits the unused baseband signal processing sections belonging to the baseband control section selected by the control card selection section 203 to the rearrangement. The baseband signal processing unit appropriately selected executes the required single code transmission.

On the other hand, if the requested transmission is a multi-code transmission, the rearrangement processing section 204 determines the base selected by the control card selecting section 203 according to the CH _need output by the control card selecting section 203. The band controller executes the requested multi-code transmission.

If the CH _need is a negative number, as described above, the number of unused baseband signals required for executing the requested multicode transmission is controlled under the control of the selected baseband control unit. Since the processing unit remains, the rearrangement processing unit 204 causes the unused baseband signal processing units belonging to the selected baseband control unit to execute the requested multicode transmission.

When the above-mentioned CH _need is a positive number, unused baseband signal processing units corresponding to the number required for executing the requested multicode transmission remain under the selected baseband control unit. The relocation processing unit 204
Secures, under the baseband control unit selected by the control card selection unit 203, the number of baseband signal processing units required for executing the requested multicode transmission. Thereafter, the relocation processing unit 204 causes the secured baseband signal processing unit to execute the requested multicode transmission. Here, a specific securing method is as follows.

First, the relocation processing unit 204 focuses on the baseband control units other than the selected baseband control unit, and selects the unused baseband signal processing units belonging to the focused baseband control unit. A baseband signal processing unit for CH _need (hereinafter referred to as “relocation baseband signal processing unit”) is selected.

Next, the rearrangement processing section 204 selects, from among the baseband signal processing sections belonging to the selected baseband control section that are executing single code transmission, the baseband signals for the CH _need (hereinafter referred to as “relocation”). Target baseband signal processing unit ”).

Thereafter, the relocation processing unit 204 performs a call connection process for causing the relocation baseband signal processing unit to execute single code transmission by the relocation target baseband signal processing unit. At this time, two baseband signal processing units are communicating with each other using the same spreading code for one call.

Further, the relocation processing unit 204 determines the relocation target in the selected baseband control unit at the time when the relocation baseband signal processing unit can execute single code transmission by the call connection processing. The call of the baseband signal processing unit is disconnected. Thereby, the transmission of the user signal can be performed without instantaneously interrupting the user transmission signal.
It can be replaced with another baseband signal processing unit.

[0071] As a result, the subordinate baseband control unit selected, the base band signal processor of the unused the CH _need fraction increases, the CH _need the total number of the above-mentioned CH _null as a whole Unused baseband signal processing units, that is, baseband signal processing units for the requested number of multicodes are secured. The above is the securing method by the relocation processing unit 204 at the time of multicode transmission.

As described above, the rearrangement processing section 204 performs processing for causing another baseband signal processing section to execute transmission performed by a certain baseband signal processing section. In order to simplify the explanation, the above processing is referred to as “alternative processing”.

Next, the operation of the multi-code transmission processing device having the above configuration will be described.

First, the operation at the time of single code transmission will be described.

At the time of reception, a radio signal received from antenna 101 is amplified and demodulated by radio transmission / reception section 102 and then sent to spreading / multiplexing section 103. The signal transmitted from the wireless transmission / reception unit 102 is transmitted to the base station control unit 104
Is sent to the baseband signal processing section selected.
For example, when single-code transmission of signals for three users is performed, three baseband signal processing units are appropriately selected by the base station control unit 104, and signals transmitted from the wireless transmission / reception unit 102 are the three baseband signal processing units. It is sent to the baseband signal processing unit. Here, as the three baseband signal processing units, the baseband signal processing unit 105 in FIG.
The following description will be made by taking as an example a case where b ₁₁ , 105b ₁₂ and 105b ₂₁ are selected.

The signals sent from spreading multiplexing section 103 are divided into baseband signal processing sections 105b ₁₁ , 105b ₁₂ and 10b.
By 5b _21, after each baseband signal processing unit is despread by unique spreading codes used, the separation composition circuit portion 10
Sent to 6. Baseband signal processing section 105b ₁₁ , 1
The signals sent from the 05b ₁₂ and the 105b ₂₁ are combined by the separation / combination circuit 106, and then wired (not shown).
Sent to

At the time of transmission, 3
After the signals for the users are separated by the separation / combination circuit unit 106, the baseband signal processing units 105b ₁₁ and 105b
₁₂ and 105b ₂₁ . The signal sent from the separation / combination circuit unit 106 is
After being spread by a spreading code used by each baseband signal processing unit according to b ₁₁ , 105b ₁₂ and 105b ₂₁ , it is sent to the spreading multiplexing unit 103. Baseband signal processing unit 1
The signals transmitted from 05b ₁₁ , 105b ₁₂ and 105b ₂₁ are multiplexed by spreading multiplexing section 103. Further, the multiplexed signal is spread by a spreading code for distinguishing a cell or a sector, and then transmitted to the wireless transmitting / receiving unit 102. The signal transmitted from the spread multiplexing unit 103 is
2, and transmitted from the antenna 101.

The above is the operation at the time of single code transmission.

Next, the operation during multi-code transmission will be described. Here, the following description will be made assuming that the above-described single code transmission is being performed.

Upon receiving a request for multi-code transmission from a higher-level station (not shown), the base station control section 104 operates the transmission processing section 201 provided therein, and transmits the multi-code request to the control card selecting section 203. Request transmission.

The control card selecting section 203 receives from the usage monitoring section 202 information on the usage of all the baseband signal processing sections in the baseband signal section 105. Thereafter, the control card selection unit 203 selects a baseband control unit that executes the requested multicode transmission by the above-described method.

At this time, if the number of unused baseband signal processing units necessary for executing the requested multicode transmission can be secured under the selected baseband control unit, the relocation processing unit 204 , And causes the unused baseband signal processing units belonging to the baseband control unit selected by the control card selection unit 203 to execute multicode transmission.

On the other hand, if the number of unused baseband signal processing units required for executing the requested multicode transmission cannot be secured under the selected baseband control unit, the relocation processing unit Reference numeral 204 secures a shortage of the baseband signal processing unit.

As described above, the relocation processing unit 204
In the baseband control unit selected by the control card selection unit 203, the single code transmission performed by the baseband signal processing unit for the shortage is replaced with a baseband signal processing unit belonging to another baseband control unit. Is performed. Thereby, the control card selecting unit 20
In the baseband control unit selected by 3, the number of unused baseband signal processing units required for executing the requested multicode transmission is secured. Thereafter, the relocation processing unit 20
4 causes a baseband signal processing unit belonging to the baseband control unit to execute multicode transmission.

The subsequent operation is as follows. In the baseband control section for transmitting a certain user signal by multicode, all the baseband signal processing sections for executing the multicode transmission use the same spreading code for spreading and despreading. Since the operation is the same as that of the above-described single code transmission except that the above operation is performed, the description is omitted. The above is the operation at the time of multicode transmission.

As described above, according to the multi-code transmission processing apparatus according to the present embodiment, the number of unused baseband signal processing units required for multi-code transmission is secured under one multi-code control unit. If not, the control card selection unit 203 selects the baseband control unit that is the easiest to perform the rearrangement processing, and then the rearrangement processing unit 204 determines that the baseband signal processing units belonging to the selected baseband control unit The transmission being performed is replaced with a baseband signal processing unit belonging to another baseband control unit.

Therefore, since a baseband signal processing section having a multi-code number is secured under one baseband control section, multicode transmission using an unused baseband signal processing section in the apparatus body is effectively performed. Can be performed. In addition, a baseband signal processing unit that performs single code transmission and multicode transmission, which balances control load, is selected.

In the above-described embodiment, the unused baseband signal processing unit that is under control is used as the baseband control unit that controls the baseband signal processing unit that executes the multicode transmission requested by the upper station. Although the case in which the largest total number of baseband signal processing units are selected with priority is described above, the present invention is also applicable to the case where the baseband control unit with the largest total number of baseband signal processing units during single code transmission is selected. The invention can be applied.

In the above embodiment, when the control card selecting unit 203 determines that the multi-code transmission requested by the upper station cannot be executed, the control card selector 203 shifts up / shifts the upper station. You may make it notify so that it may switch to down transmission. This allows
Communication at the desired transmission rate can be performed reliably,
The baseband signal processing unit can be used efficiently.

In the above embodiment, the target of transmission executed by the baseband signal processing unit belonging to another baseband control unit from the baseband signal processing unit belonging to one baseband control unit by the rearrangement process is described. Although the case of single code transmission has been described, the present invention can be applied to the case of multicode transmission. In this case, it is necessary to secure the number of baseband signal processing units under the control of one baseband control unit by the number of baseband signal processing units that are performing multicode transmission during the substitution process.

(Embodiment 2) In Embodiment 2, a baseband signal processing unit necessary for executing multicode transmission is reserved in advance, so that a multi-code transmission request is generated from a higher-level station. In this embodiment, the multicode transmission is executed without performing the substitution process. The configuration of the multicode transmission processing device according to the second embodiment is the same as that of the first embodiment except that the configuration of base station control section 104 is different.

The difference between the configuration of base station control section 104 and Embodiment 1 will be described below.

The base station control section 104 prepares for the baseband control section 10 in preparation for a multi-code transmission request from an upper station.
5a ₁ under one of ~105a _M, to reserve in advance the multicode number of the baseband signal processing section as appropriate. The reserved baseband signal processing unit is basically used for multicode transmission.

The base station control unit 104 uses the reserved baseband signal processing unit only when the baseband signal processing unit for executing single code transmission is insufficient. In such a case, the base station control unit 104 assigns priorities for determining which baseband signal processing unit to use, to the reserved baseband signal processing unit.

Further, the usage status monitoring unit 202 in the base station control unit 104 monitors the usage status of all the baseband signal processing units in the baseband signal unit 105, and has a table shown in FIG. In FIG. 4, the difference from the contents of the table in the first embodiment is that the total number of the reserved baseband signal processing units is added.

The configuration of the base station control unit 104 other than the above is
This is the same as in the first embodiment.

Next, the operation of the multi-code transmission processing device having the above configuration will be described.

Upon receiving the request for multi-code transmission from the upper station, the base station control unit 104 operates the transmission processing unit 201 provided therein, and transmits the request for multi-code transmission requested to the control card selecting unit 203. I do.

The control card selection unit 203 selects the baseband control unit to which the reserved baseband signal processing unit belongs as described above with reference to the table contents of the usage status monitoring unit 202 shown in FIG.

The rearrangement processing section 204 causes the reserved baseband signal processing section belonging to the baseband control section selected by the control card selection section 203 to execute the requested multicode transmission.

By the way, the base station control section 104 secures, from the reserved baseband signal processing sections, the number of baseband signal processing sections required for executing the multicode transmission requested by the upper station. If not, the same relocation processing as in the first embodiment is executed.

Also, when a request for single code transmission is generated by the rearrangement processing of the upper station or the rearrangement processing unit 204, there may be a case where the baseband signal processing unit for executing this single code transmission is insufficient. is there. In this case, the control card selection unit 203 sets the usage status monitoring unit 20
Referring to the contents of the table shown in 2, the baseband signal processing unit that executes the single code transmission is selected from the reserved baseband signal processing units in accordance with the priority. The baseband signal processing unit selected in this way executes the requested single code transmission.

Thus, the multi-code transmission requested from the upper station is reliably executed without affecting the execution of the single-code transmission.

The operation of the multi-code processing device according to the second embodiment is the same as that of the first embodiment except for the points described above, and therefore the description is omitted.

As described above, according to the multi-code transmission processing apparatus according to the present embodiment, base station control section 104 places a multi-code transmission baseband signal processing section under an arbitrary baseband control section. Since the reservation is made appropriately, various multi-code transmissions requested from the upper station can be executed without performing the rearrangement processing.

[0106]

As described above, according to the present invention,
By substituting the transmission being performed by the baseband signal processing unit belonging to a certain baseband control unit with the baseband signal processing unit belonging to another baseband control unit,
Since the required number of baseband signal processing units for the required multi-code transmission can be secured under the baseband control unit, high-speed transmission that effectively utilizes unused baseband signal processing units Thus, a multi-code transmission processing device for transmitting a signal can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a multicode transmission processing device according to Embodiment 1 of the present invention.

FIG. 2 is a block diagram showing a configuration of a transmission processing unit provided in the multicode transmission processing device according to the first embodiment.

FIG. 3 is a view showing the contents of a table of a use status monitoring unit provided in the multicode transmission processing device according to the first embodiment;

FIG. 4 is a diagram showing table contents of a usage status monitoring unit provided in a multicode transmission processing device according to a second embodiment of the present invention;

[Explanation of symbols]

104 base station controller 105a ₁ ~105a _M baseband controller 105b ₁₁ ~105b _MN baseband signal processing section 201 transmission processing section 202 using status monitoring unit 203 controls the card selecting section 204 relocation processing section

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04J 13/00-13/06 H04B 1/69-1/713 H04B 7/24-7/26 H04Q 7 / 00-7/38

Claims (10)

(57) [Claims] 1. A plurality of control means for controlling at least one signal processing means for executing multi-code transmission, a monitoring means for monitoring an operation status of the signal processing means, and a monitoring result of the monitoring means. Selecting one of the control means, and performing the processing performed by one of the signal processing means controlled by the selected control means to an unused one of the signal processing means controlled by another control means. And a rearrangement processing means for substituting. 2. The multi-code transmission processing device according to claim 1, wherein said rearrangement processing means selects control means for controlling signal processing means having a number of channels equal to or more than the number of channels necessary for multi-code transmission. 3. The relocation processing means, based on the result of subtracting the number of unused signal processing means controlled by the selected control means from the number of channels required for multicode transmission, another control means. 2. The multi-code transmission processing device according to claim 1, wherein the multi-code transmission processing device is caused to perform processing substitution. 4. The relocation processing means selects the control means such that the result of subtracting the number of unused signal processing means to be controlled from the number of channels required for multicode transmission is minimized. The multi-code transmission processing device according to claim 1, wherein 5. The rearrangement processing means subtracts the number of unused signal processing means to be controlled from the number of channels required for multi-code transmission to obtain an unused signal controlled by another control means. 2. The multi-code transmission processing device according to claim 1, wherein the control means is selected so as to be smaller than the total number of the processing means and to be minimum. 6. The relocation processing means, if an appropriate control means cannot be selected as a control means for controlling a signal processing means for executing multicode transmission, shifts up to an upper station instead of multicode transmission. 6. The multi-code transmission processing apparatus according to claim 1, wherein the multi-code transmission processing apparatus is notified of performing a downshift transmission. 7. A relocation processing means for reserving in advance any of the signal processing means controlled by the control means as unused and for reserving the reserved signal processing means at the time of executing multicode transmission. The multi-code transmission processing device according to any one of claims 1 to 6, further comprising: 8. The multi-code transmission processing device according to claim 7, wherein the reservation means causes the reserved signal processing means to be used when executing a new single code transmission. 9. A base station apparatus comprising the multicode transmission processing device according to claim 1. Description: 10. A wireless communication terminal apparatus for performing wireless communication with the base station apparatus according to claim 9.