JP2001094490A - Base station device and method for processing received signal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily realize a device realization technology that wires for many and high-speed digital signals in a bus form by decreasing number of signals for an RL bus concentrating incoming digital received signals from a mobile station device to a base station device so as to reduce required signal transfer capability. SOLUTION: RX sections 114-1-114-3 in each of m-sets (m<=M) carrier reception sections 105-1, 105-2 to which M-sets of received carriers are distributed apply processing of converting individually two-way signals, received through diversity from a mobile station device by each sector of one carrier, into digital received signals to a plurality of specific ones of one or a plurality of distributed reception carriers at the same time, the RL bus 115 concentrates the digital received signals of all sectors of the converted same received carriers. BB sections 116-1-116-n apply RAKE reception demodulation processing to the concentrated signal to generate an incoming base band signal by each incoming radio channel.

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, in which transmission information is multiplied by a spreading code and transmitted in units of frames, and the same spreading code is multiplied by the same spreading code on the receiving side to achieve the original transmission. CDMA (Code Division Multiple Access) method for extracting information,
W-CDMA accommodating carriers of different frequencies
The present invention relates to a base station apparatus that communicates with a mobile station apparatus using a (Wide band-Code Division Multiple Access) method or the like, and a received signal processing method.

[0002]

2. Description of the Related Art Conventionally, as this type of base station apparatus and a received signal processing method, there is one disclosed in Japanese Patent Application Laid-Open No. 9-31885.

FIG. 2 is a block diagram showing a configuration of a conventional base station apparatus.

A conventional base station apparatus 200 shown in FIG.
Is an example in the case of a 6-sector configuration, and the first and second sets of each set for performing diversity reception provided in each of two sectors are provided.
..., the sixth antenna 201-1 and 202-1, 201-
2 and 202-2,..., 201-6 and 202-6;
The first to sixth common AMP units 20 connected to the antennas 201-1 and 202-1 to 201-6 and 202-6
3-1 to 203-6 and first to sixth TRX units 204-1
To 204-6 and the first to n-th nBB / CHC units 205-1
205-n, the HWYINT unit 206, and the CNT unit 2
07, a control bus 208, an RL bus 209, an FL bus 210, and an HWY bus 211.

[0005] First to sixth common AMP units 203-1 to 20
3-6 is a plurality of carrier RF transmission signals 212-1 to 212-2.
-6 and RF received signals 213-1 and 2 of multiple carriers
14-1, 213-2 and 214-2, ..., 213-6
And 214-6 are commonly amplified.

[0006] The TRX units 204-1 to 204-6 have a transmission modulation function and a reception function.

[0007] The reception function is such that, for a plurality of reception carriers, RF reception signals 213-1 and 214-1, 213-2 and 21 for both diversity reception are provided for each reception carrier.
,.., 213-6 and 214-6 are converted into digital reception signals and output to the RL bus 209.

[0008] The transmission modulation function is to modulate and spread a downlink baseband signal for each downlink radio channel from the base station apparatus 200 to a mobile station apparatus (not shown), and then to transmit an RF transmission signal 212-1 in a predetermined frequency band. ~ 212-6,
Thereafter, the transmission power is adjusted, and RF transmission signals 212-1 to 212-6 of all radio channels are superimposed for each transmission carrier and output to each of the common AMP units 203-1 to 203-6. .

First to n-th BB / CHC units 205-1 and 205-2
05-n is provided with a required number (in this example, n) capable of securing the number of resources according to the number of channels accommodated and the capacity of the base station apparatus, and has the following three functions to be provided. is there.

First, different diversity reception of the same radio channel within the same radio channel, a synchronization function for synchronizing a plurality of desired waves scattered on radio channels of different sectors, and RAKE reception demodulation based on maximum ratio combining It generates an uplink baseband signal by its function.

[0011] Further, it has a transmission power control function, a radio channel state measurement function, a channel coding function / decoding function between a baseband signal and a main signal, and a downlink baseband after channel coding in the downlink direction. The signal and the transmission power information are output to the FL bus 210.

Further, the radio channel state obtained in the course of channel decoding is collected by a radio channel state measurement function and utilized in a transmission power control function.

The HWYINT section 206 relays the main signal between the transmission path and the BB / CHC sections 205-1 to 205-n, and at the same time, generates a reference timing of the entire apparatus based on the clock signal extracted from the transmission path, and It has a function of generating a clock to be supplied to the entire system, and further has a function of relaying call control information and operation management information exchanged via a transmission line to the CNT unit 207.

The CNT unit 207 controls, via a control bus 208, resource allocation and release of each unit in the apparatus accompanying call control and handoff control, and monitoring and control of the operation state of each unit in the apparatus.

The RL bus 209 is connected to each TRX section 204-1.
２０４204-6 are collected, and all B
Broadcast to the B / CHC units 205-1 to 205-n. That is, the uplink signal from the mobile station apparatus to the base station apparatus 200 is concentrated.

However, as an example of the signal configuration of the RL bus 209, when the modulation method is QPSK and the resolution of the A / D conversion is 6 bits, a total of 12 bits of the in-phase component (I) and the quadrature component (Q) are digital. The RL bus 209 becomes a reception signal, and the RL bus 209 is a bus for transferring the 12-bit digital reception signal by concentrating the number corresponding to the number of reception carriers × the number of sectors × the number of diversity receptions.

That is, if the number of reception carriers is 4, the number of sectors is 6, and the number of diversity receptions is 2, RL bus 209
Becomes 576 bits in total, and when the signal speed of each bit is increased to about 16 Mbps, R
The L bus 209 needs a signal transfer capability of 9216 Mbps.

The FL bus 210 is connected to each BB / CHC unit 20
5-1 to 205-n to all TRX units 204-1 to 204
This is for broadcasting the downlink baseband signal and transmission power information to -6.

The HWY bus 211 is connected to the HWYINT section 20
6 relays the main signal between any one of the BB / CHC units 205-1 to 205-n.

The control bus 208 is used to exchange monitoring control information between the CNT unit 207 and other units.

The operation of the base station apparatus 200 having such a configuration will be described along the signal flows in the uplink and downlink directions.

In the upward direction, each antenna 201-1
And RF receiving signals 213-1 and 22-1 of a plurality of carriers simultaneously received from 202-1 to 201-6 and 202-6
14-1 to 213-6 and 214-6 are common AMPs.
Units 203-1 to 203-6 receive and amplify the received signal and transmit the amplified signals to TRX units 204-1 to 204-6 of the corresponding sector.

The TRX units 204-1 to 204-6 transmit received RF reception signals 213-1 and 213-1 by the reception function.
14-1 to 213-6 and 214-6 are converted into digital reception signals for each reception carrier and transmitted to the RL bus 209.

Each BB / CHC unit 205-1 to 205-n
Are all carriers flowing on the RL bus 205,
A digital reception signal of both the sector and the diversity reception is input, an RF reception signal group to be rake-received and demodulated is sequentially selected by a synchronization function, and an upstream baseband signal is converted by a rake reception demodulation function based on maximum ratio combining. Reproduce.

Further, each of the BB / CHC units 205-1 to 20
5-n transmits the uplink main signal to the HWY bus 211 after the channel coding process for the uplink baseband signal by the channel decoding function, and
The NT unit 206 relays and transmits to the transmission path.

In the downstream direction, HWYIN
The downlink main signal received via the T unit 206 and the HWY bus 211 is converted into a downlink baseband signal by a channel coding process using a channel coding function of each of the BB / CHC units 205-1 to 205-n. Output to 210.

Further, each of the BB / CHC units 205-1 to 20
5-n outputs transmission power information in synchronization with the downlink baseband signal by the transmission power control function. Here, the downlink baseband signal and the transmission power information on the FL bus 210 are stored in the TRX units 204-1 to 204-6 of all the sectors.
Will be broadcast to

TRX sections 204-1 to 204-6 of one or more sectors accommodating the radio channel convert a downlink baseband signal into an RF transmission signal by a transmission modulation function, and adjust a transmission level by transmission power information. After the adjustment, the RF transmission signals 212-1 to 212-6 of all the radio channels are superimposed for each transmission carrier, and after a plurality of carriers are multiplexed, each of the common AMP units 203-1 to 206-1
Transmit to 3-6.

Each of the common AMP units 203-1 to 203-6
, Amplifies the RF transmission signals 212-1 to 212-6 in common, and wirelessly transmits the RF transmission signals from the antennas 201-1 and 202-1 to 201-6 and 202-6.

The CNT unit 207 controls the transmission and reception operations in the uplink and downlink directions performed by the base station apparatus 200 in conjunction with call control and handoff.
Based on call control information and operation management information transmitted and received through the INT unit 206, allocation and release of resources of each unit;
The interlocking operation of the resources of each unit is controlled, and an instruction and a response therefor are performed via the control bus 208.

[0031]

However, in the conventional apparatus, the BB / CHC units 205-1 to 205-
In order for n to be used as a common resource for all receiving carriers, the RL bus 205 needs a huge signal transfer capability, and when it is necessary to increase the number of carriers and sectors, a high-speed There is a problem that a device implementation technique for wiring digital signals in a bus form is extremely difficult.

The present invention has been made in view of the above point, and reduces the number of RL bus signals for collecting upstream digital reception signals from a mobile station apparatus to a base station apparatus. It is an object of the present invention to provide a base station apparatus capable of easily realizing a device implementation technique for wiring a large number of digital signals in a bus form at a high speed.

[0033]

According to the present invention, there is provided a base station apparatus comprising:
And m (m ≦ M) carrier receiving means to which M receiving carriers are distributed, and each of the m carrier receiving means diversifies all the sectors of the one or more distributed receiving carriers. The number of receiving means required for reception and the number of baseband processing means required to combine the diversity reception signals at the maximum ratio and accommodate all uplink radio channels in all reception carriers are simply provided. And a mechanism for connecting with one first bus means.

According to this configuration, the number of signals of the bus means is reduced, and the signal transfer capability required of the bus means is reduced, thereby realizing an apparatus technology for wiring a large number of digital signals at high speed in a bus form. It can be easily realized.

[0035] In the base station apparatus of the present invention, in the above configuration, the receiving means performs a process of individually converting a plurality of received signals diversity-received from the mobile station apparatus into digital received signals for each sector of one received carrier. A configuration is adopted in which a plurality of specific reception carriers are simultaneously performed.

According to this configuration, the base station apparatus can be configured by changing the number of receiving means for each carrier receiving means so as to correspond to the number of corresponding receiving carriers and sectors.

According to the base station apparatus of the present invention, in the above-mentioned configuration, the baseband processing means converts the digital reception signal into
By performing a synchronization process and a RAKE reception demodulation process based on a maximum ratio combining for uplink radio channels in the same reception carrier, an uplink baseband signal is generated for each uplink radio channel and transmitted for each uplink radio channel. In the case where power control processing is performed to output downlink transmission power information and the carrier receiving means accommodates a plurality of receiving carriers, a configuration is adopted in which the carrier receiving means performs baseband processing on digital reception signals of arbitrary receiving carriers. .

According to this configuration, the receiving means having the A / D conversion function and the baseband processing means having the synchronizing function, the RAKE reception demodulation function and the transmission power control function are connected by a single first bus means. In addition, since the dedicated bus is provided for each carrier receiving unit, the number of signals of the first bus unit connecting the respective functions can be reduced, the signal transfer capability required for the first bus unit can be reduced, and the speed can be reduced. Thus, it is possible to reduce the difficulty of implementing a technique for wiring a large number of digital signals in a bus format. Furthermore, the base station apparatus can be configured by changing the number of baseband processing means for each carrier receiving means so as to correspond to the number of corresponding receiving carriers.

The base station apparatus according to the present invention, in the above-described configuration, performs channel decoding after adding deinterleaving processing, error detection and correction decoding processing to the uplink baseband signal output from the baseband processing means. By performing this, a channel decoding function for restoring the uplink main signal and a channel coding function for performing error detection / correction coding and interleaving of the downlink main signal and transmitting the symbol sequence after channel coding as a downlink baseband signal. A configuration comprising a codec means provided and a second bus means for connecting the baseband processing means provided for each of the m carrier receiving means to an arbitrary codec means is adopted.

According to this configuration, the codec means is
By using functions (processing resources) commonly assigned to a plurality of carrier receiving units, the use of resources can be made more efficient, and the device scale can be reduced.

In the above configuration, the base station apparatus according to the present invention converts the downlink baseband signal into an RF transmission signal, adjusts the transmission level for each radio channel based on the transmission power information, and then sets all radio channels for each transmission carrier. And a carrier transmitting means for simultaneously performing transmission processing for multiplexing a plurality of carriers for each of a plurality of sectors, and this arbitrary carrier transmitting means is simultaneously output from m carrier receiving means. And a third bus means for simultaneously receiving the transmission power information and the downlink baseband signal output simultaneously from the codec means in an arbitrary combination corresponding to the downlink radio channel.

According to this configuration, on the third bus means,
Since all the transmission power information output from the n carrier receiving units and all the downlink baseband signals output from the plurality of codec units are collected and carried simultaneously,
All carrier transmitting means can simultaneously receive an arbitrary downlink baseband signal and transmission power information of the corresponding radio channel corresponding thereto.

The base station apparatus of the present invention adopts a configuration in which the CDMA system or the W-CDMA system is applied in the above configuration.

According to this configuration, the CDMA system or the W-
Even in a base station apparatus to which the CDMA system is applied, the first
Operations and effects similar to those of any one of the aspects to the fifth aspect can be obtained.

[0045] The received signal processing method in the base station apparatus according to the present invention employs m (m≤m) to which M received carriers are distributed.
In each of the carrier receiving means of M), the process of individually converting a plurality of reception signals diversity-received from the mobile station apparatus into digital reception signals for each sector of one reception carrier is performed by the distributed one or plurality of reception signals. A plurality of specific carriers are simultaneously performed, and the converted digital reception signals of all sectors of the same reception carrier are condensed by the first bus means. By performing a RAKE reception demodulation process based on the combination, an uplink baseband signal is generated for each uplink radio channel from the mobile station device,
The transmission power control process is performed for each of the uplink radio channels to output downlink transmission power information, and when the carrier receiving means accommodates a plurality of reception carriers, a base is provided for a digital reception signal of an arbitrary reception carrier in the carrier receiving means. Band processing was performed.

According to this method, the number of signals of the bus means is reduced, and the signal transfer capability required of the bus means is reduced, thereby realizing an apparatus technology for wiring a large number of digital signals at high speed in a bus form. It can be easily realized, and the base station apparatus can be configured by changing the number of receiving means for each carrier receiving means so as to correspond to the number of corresponding receiving carriers and sectors. And a baseband processing unit having a synchronization function, a RAKE reception demodulation function, and a transmission power control function are a single first unit.
Since they are connected by the bus means and provided exclusively for each carrier receiving means, the number of signals of the first bus means connecting the respective functions can be reduced, and the signal transfer capability required of the first bus means is reduced. This makes it possible to reduce the difficulty of implementing a technology for wiring a large number of digital signals in a bus format at high speed, and furthermore, for each carrier receiving means, the baseband is adjusted so as to correspond to the number of corresponding receiving carriers. The base station device can be configured by changing the number of processing means.

The received signal processing method in the base station apparatus according to the present invention is the method as described above, wherein after the deinterleave processing and the error detection and correction decoding processing are added to the uplink baseband signal output from the baseband processing means. , Performing channel decoding, a channel decoding function for restoring an uplink main signal, and error detection / correction coding of a downlink main signal, interleaving, and transmitting a symbol sequence after channel coding as a downlink baseband signal. A codec process for performing channel coding is performed, and a function of the baseband process performed for each of the m carrier receiving units is connected to an arbitrary function of the codec process by the second bus unit.

According to this method, the codec means is
By using functions (processing resources) commonly assigned to a plurality of carrier receiving units, the use of resources can be made more efficient, and the device scale can be reduced.

[0049] The received signal processing method in the base station apparatus according to the present invention is the same as the above method, except that
After converting to F transmission signals, adjusting the transmission level for each radio channel by transmission power information, superimposing RF transmission signals of all radio channels for each transmission carrier, and further performing transmission processing for multiplexing a plurality of carriers. It is performed simultaneously for each of a plurality of sectors, and the function of the transmission processing for each of the plurality of sectors is simultaneously output by the third bus means from the transmission power information simultaneously output from the m carrier receiving means and the function of the codec processing. Downlink baseband signals can be simultaneously received in any combination corresponding to the downlink radio channel.

According to this method, on the third bus means,
Since all the transmission power information output from the n carrier receiving units and all the downlink baseband signals output from the plurality of codec units are collected and carried simultaneously,
All transmitting means can simultaneously receive any downlink baseband signal and the corresponding transmission power information of the radio channel.

[0051]

Embodiments of the present invention will be described below in detail with reference to the drawings.

(Embodiment) FIG. 1 is a block diagram showing a configuration of a base station apparatus according to an embodiment of the present invention.

The base station apparatus 100 of the present embodiment shown in FIG. 1 has a six-sector configuration accommodating four reception carriers, and has two carrier reception units.
This is an example of a configuration in which each carrier receiving unit accommodates two reception carriers.

The base station apparatus 100 is provided with two sets of first, second,... For performing diversity reception provided for each sector.
The sixth antennas 101-1 and 102-1, 101-2 and 102-2,..., 101-6 and 102-6, and the antennas 101-1 and 102-1 to 101-6 and 1
02-6 to the first to sixth common AMP units 103-
1 to 103-6 and the first to sixth RF distribution units 104-1 to 104-1
104-6 and first and second carrier receiving sections 105-1
And 105-2, and the first to sixth TX units 106-1 to 106-1
6-6 and the first to n-th CHC units 107-1 to 107-n
, HWYINT unit 108, CNT unit 109, control bus 110, RBC bus 111, FL bus 112
And an HWY bus 113.

Further, the first carrier receiving section 105-1
It is configured to include first to third RX units 114-1 to 114-3, an RL bus 115, and first to n-th BB units 116-1 to 116-n.

The second carrier receiving section 105-2 includes:
Third RX units 117-1 to 117-3 and RL bus 118
And the first to n-th nBB units 119-1 to 119 -n.

First to sixth common AMP units 103-1 to 103-1
3-6, RF transmission signals 120-1 to 120-1 of a plurality of carriers
20-6 and RF reception signals (first and second RF reception signals) of multiple carriers 121-1 and 122-1, 121-
, 121-6 and 122-6 are commonly amplified.

First to sixth RF distribution units 104-1 to 104
-6 distributes the first RF reception signals 121-1 to 121-6 and the second RF reception signals 122-1 to 122-6 respectively into two, and distributes one of the first RF reception signals 121-1.
121-6 and the second RF reception signals 122-1 to 122-
6 with the RX unit 114 of the first carrier receiving unit 105-1.
-1 to 114-3, and the other first RF reception signal 1
21-1 to 121-6 and the second RF reception signal 122-1 to 12-1
122-6 to the RX of the second carrier receiving unit 105-2.
Output to the units 117-1 to 117-3.

However, FIG. 1 shows the first RF distributor 104-
1 and the RF reception signal 121-2 and the second RF reception signal 122-1 distributed by the second RF distribution unit 104-2.
2 and R distributed by the sixth RF distributor 104-6.
Only the F reception signal 121-6 and the second RF reception signal 122-6 are indicated by the reference numerals in parentheses.

The first and second carrier receiving units 105-1 and 105-2 group the four receiving carriers (first to fourth receiving carriers) into groups of two, and for each of the two grouped receiving carriers. RX assigned to (first and third receiving carriers and second and fourth receiving carriers)
Units 114-1 to 114-3 and RX units 117-1 to 11-11
7-3 and the RL bus 115 and the RL bus 118 for easy understanding.

That is, the four receiving carriers accommodated by base station apparatus 100 of the present invention are referred to as a first receiving carrier group and a second receiving carrier group, and RX sections 114-1 to 114-1 assigned to the first receiving carrier group. 114
-3, RL bus 115 and BB units 116-1 to 116-
n, and RX units 117-1 to 117 assigned to the second reception carrier group.
-3, RL bus 118 and BB units 119-1 to 119-
This shows that n is grouped.

Each of the RX units 114-1 to 114-3 and RX
Each of the units 117-1 to 117-3 has a reception function for two sectors of two reception carriers, and includes first and second RF reception signals 121-1 and 122-1 for diversity reception of two reception carriers. 121-2 and 12
2-2,..., 121-6 and 122-6 are converted into digital reception signals, respectively, and RL buses 115 and 118 are converted.
Output to

The RL buses 115 and 118 are connected to each RX unit 1
14-1 to 114-3 and RX units 117-1 to 117-
3 and collects the digital reception signals from
-1 to 116-n and the BB units 119-1 to 119-n. That is, the uplink signal from the mobile station device (not shown) to the base station device 100 is concentrated.

When the number of signals on RL bus 115 or 118 is converted under the same condition as that of conventional base station apparatus 200 shown in FIG. 2, the number of received carriers is limited to 288 because the number of received carriers is limited to two. Fits in a book. That is, as compared with the conventional base station apparatus 200 of FIG.
18 is reduced by half, and the RL bus 115 or 1
18 also reduces the signal transfer capability required by 18 to one half.

Each of the BB units 116-1 to 116-n and BB
The units 119-1 to 119-n have a synchronization function, a RAKE reception / demodulation function, and a transmission power control function. The synchronization function and the RAKE reception / demodulation function allow the uplink radio channel signal on one reception carrier to be transmitted. The signal is converted into an uplink baseband signal and output to the RBC bus 111, and the transmission power information is output to the FL bus 112 by the transmission power control function.

The RBC bus 111 is connected to all BB units 116-1.
116-n and the BB units 119-1 to 119-n and all the CHC units 107-1 to 107-n are used for exchanging uplink baseband signals and radio channel state information.

The FL bus 112 is connected to each of the BB units 116-1 to 116-1.
The transmission power information from the BB units 119-1 to 119-n and the downlink baseband signals from the CHC units 107-1 to 107-n are transmitted to all the TX units 106-1 to 106-106.
Broadcast to -6.

CHC sections 107-1 to 107-n have a channel coding function / channel decoding function and a radio channel state measuring function.
The baseband signal and the main signal are converted in each of the downlink direction and the uplink direction, and the BB units 116-1 to 116-1 through the RBC bus 111 are converted by the radio channel state measurement function.
It transmits radio channel state information used in the transmission power function of the BB units 119-1 to 119-n.

The HWYINT unit 108 relays the main signal between the transmission line and the CHC units 107-1 to 107-n, and at the same time, generates the reference timing of the entire device based on the clock signal extracted from the transmission line, and It has a function of generating a clock to be supplied and a function of relaying call control information and operation management information exchanged via a transmission line to the CNT unit 109.

The CNT unit 109 controls, via the control bus 110, resource allocation and release of each unit in the apparatus in accordance with call control and handoff control, and monitoring and control of the operation state of each unit in the apparatus.

Next, the base station apparatus 100 having such a configuration will be described.
Will be described.

In the upstream direction, RF receiving signals 121-1 and 1 of a plurality of carriers simultaneously received from antennas 101-1 and 102-1 to 101-6 and 102-6.
22-1 to 121-6 and 122-6 are subjected to common reception and amplification in common AMP sections 103-1 to 103-6, and then RF
RX sections 114-1 to 114-3 of first reception carrier receiving section 105-1 are provided by distribution sections 104-1 to 104-6.
RX section 117 of second receiving carrier receiving section 105-2
-1 to 117-3.

The RX units 114-1 to 114-3
The CNT unit 109 is set to process only the first reception carrier and the third reception carrier, and the RX unit 1
17-1 to 117-3 are configured to process the CNT unit 109 in advance so as to process only the second reception carrier and the fourth reception carrier.
Is set by

The RF reception signals 121-1 and 122-1 to 121-6 and 122-6 of the first and third reception carriers are received by the reception functions of the RX units 114-1 to 114-6 at every diversity reception. Is converted to a digital reception signal and sent to the RL bus 115.

The BB units 116-1 to 116-n take in all the sectors flowing on the RL bus 115 and digital reception signals of both diversity reception, and perform uplink radio channel by a synchronization function and a rake reception demodulation function. The base station reproduces the upstream baseband signal every
Output to 1.

The BB units 116-1 to 116-n are
The transmission power control function outputs downlink transmission power information of the radio channel to the FL bus 112.

The CHC units 107-1 to 107-n
An uplink baseband signal of the radio channel is taken in from the C bus 111, converted into an uplink main signal by a channel decoding function, and transmitted to the HWY bus 113.

The radio channel state measuring function of the CHC sections 107-1 to 107 -n converts radio channel state information obtained in the course of channel decoding into BB sections 116-1 to 116-1 accommodating the uplink radio channels. -N and the BB units 119-1 to 119 -n via the RBC bus 111. The main signal output to the HWY bus 113 is relayed and transmitted by the HWYINT unit 108 to a transmission path.

In the operation in the upward direction, the RF reception signals 121-1 of the second and fourth reception carriers are used.
, 122-1 to 121-6 and 122-6 pass through the RX units 117-1 to 117-6, the RL bus 118 and the BB units 119-1 to 119-n, but share the common RBC bus 111 and FL bus. CHC unit 107-
1 to 107-n.

Therefore, CHC units 107-1 to 107-n
Is a resource common to both the uplink basin band signals of the radio channels of the first and third reception carriers and the uplink basin band signals of the radio channels of the second and fourth reception carriers.

In the downstream direction, HWYI
The downlink main signal received via the NT unit 108 and the HWY bus 113 is converted into a downlink baseband signal by a channel coding process using a channel coding function of the CHC units 107-1 to 107-n.
2 is output.

Further, the first processing for the radio channel is performed.
The transmission power information of the downlink radio channel is output to the FL bus 112 by the transmission power control function of the carrier receiving unit 105-1 and the second receiving carrier receiving unit 105-2.

The downlink baseband signal and transmission power information on the FL bus 112 are stored in the TX units 106-1 to 106-1 of all sectors.
6-6, the T or T of one or a plurality of sectors accommodating the downlink radio channel is transmitted without discrimination of the transmission carrier.
X sections 106-1 to 106-6 are provided by a transmission modulation function.
Downlink baseband signals are converted to RF transmission signals 120-1 to 120-12.
0-6, and the transmission level is adjusted according to the transmission power information.
F transmission signals 120-1 to 120-6 are superimposed, and a plurality of carriers are multiplexed.
Output to 103-6.

The common AMP units 103-1 to 103-6
Commonly amplify the RF transmission signals 120-1 to 120-6,
Antennas 101-1 and 102-1 to 101-6 and 1
Radio waves are transmitted from 02-6.

As described above, base station apparatus 1 of the present embodiment
According to 00, the number of RX units 114-1 to 114-3 required for diversity reception of all sectors of two reception carriers is as follows:
The two RF reception signals 121-1 and 122-1 to 121- that are diversity-received for each sector of two reception carriers
6 and 122-6 are converted to digital reception signals, and the digital reception signals are concentrated on a single RL bus 115.
This concentrated digital received signal is transmitted by the number of B signals necessary to accommodate all uplink radio channels in one received carrier.
Output to the B sections 116-1 to 116-n.
-1 to 116-n, RAK based on synchronization processing and maximum ratio combining for uplink radio channels in the same reception carrier.
By performing E reception demodulation processing, an uplink baseband signal is generated for each uplink radio channel, and transmission power control processing is performed for each uplink radio channel to output downlink transmission power information.

As described above, the RX units 114-1 to 114-3 having the reception function and the A / D conversion function, the synchronization function,
B with RAKE reception demodulation function and transmission power control function
B units 116-1 to 116-n are connected to a single RL bus 11
5 and dedicated to each receiving carrier unit, the number of signals on the RL bus 115 connecting the respective functions can be reduced, and a device for wiring a large number of digital signals at high speed in a bus format It is possible to reduce the difficulty of the technology.

The BB provided for each receiving carrier unit
Parts 116-1 to 116-n and 119-1 to 119-n
A channel decoding function of restoring an uplink main signal by performing channel decoding after adding deinterleaving processing and error detection and correction decoding processing to an uplink baseband signal output from the And a plurality of CHC units 107-1 to 107-n each having a channel coding function of transmitting a symbol sequence after channel coding as a downlink baseband signal by performing error detection / correction coding and interleaving, and the BB unit 116 -1 to 116-n and 119-1 to 119-n
Is provided with an RBC bus 111 and an FL bus 112 for enabling connection to any of the CHC units 107-1 to 107-n, and the CHC units 107-1 to 107-n are commonly assigned to a plurality of reception carriers. By using the function units (processing resources) that can be used, the use of resources can be made more efficient, and the device scale can be reduced.

[0088]

As described above, according to the present invention,
To reduce the number of signals on the RL bus for collecting upstream digital reception signals from the mobile station device to the base station device, thereby reducing the required signal transfer capability and wiring a large number of digital signals at high speed in a bus format. Can be easily realized.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a base station apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a conventional base station apparatus.

[Explanation of symbols]

105-1 to 105-2 Carrier receiving units 114-1 to 114-3, 117-1 to 117-3 R
X section 115, 118 RL bus 116-1 to 116-n, 119-1 to 119-n B
B section 107-1 to 107-n CHC section 111 RBC bus 112 FL bus 106-1 to 106-6 TX section

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5K014 AA01 BA05 FA16 HA05 HA10 5K022 EE02 EE32 EE36 5K047 AA16 BB01 GG34 HH15 LL15 MM02 MM12 5K059 CC03 DD31 DD37 EE02 5K067 BB21 CC10 CC24 EE10 GG08 KK03

Claims (9)

[Claims] 1. An apparatus comprising: m (m ≦ M) carrier receiving units to which M receiving carriers are distributed, wherein each of the m receiving units includes one or more of the distributed receiving carriers. The number of receiving means necessary for diversity reception of all sectors, and the number of baseband processes required for maximum ratio combining of these diversity reception signals and accommodating all uplink radio channels in all reception carriers A base station apparatus comprising: a first bus means for connecting the first and second means to each other. 2. The method according to claim 1, wherein the receiving means performs a process of individually converting a plurality of reception signals diversity-received from the mobile station apparatus into digital reception signals for each sector of one reception carrier for one or more specific reception carriers. 2. The base station apparatus according to claim 1, wherein a plurality of operations are performed simultaneously. 3. The baseband processing means performs a synchronization process and a RAKE reception demodulation process based on a maximum ratio combination on an uplink radio channel in the same reception carrier, so that the digital reception signal is provided for each uplink radio channel. In addition to generating an uplink baseband signal, performing transmission power control processing for each of the uplink radio channels and outputting downlink transmission power information, when the carrier receiving means accommodates a plurality of reception carriers, arbitrary reception in the carrier receiving means is performed. 3. The base station apparatus according to claim 2, wherein baseband processing is performed on a digital received signal of the carrier. 4. An uplink main signal is restored by performing de-interleaving processing, error detection and correction decoding processing on the uplink baseband signal output from the baseband processing means, and then performing channel decoding. Codec means having a channel decoding function, a channel coding function of performing error detection / correction coding on a downlink main signal, interleaving the symbol sequence after channel coding as a downlink baseband signal, and m carriers 4. The base station apparatus according to claim 2, further comprising second bus means for connecting said baseband processing means provided for each receiving means to any of said codec means. . 5. Converting a downlink baseband signal into an RF transmission signal, adjusting a transmission level for each radio channel by transmission power information, superimposing RF transmission signals of all radio channels for each transmission carrier, and further, A carrier transmitting means for simultaneously performing transmission processing for multiplexing a plurality of carriers for each of a plurality of sectors; and an arbitrary carrier transmitting means for transmitting power information simultaneously output from m carrier receiving means and simultaneously transmitting data from codec means. 5. The base station apparatus according to claim 4, further comprising third bus means for simultaneously receiving the output downlink baseband signal in an arbitrary combination corresponding to the downlink radio channel. 6. The base station apparatus according to claim 1, wherein a CDMA system or a W-CDMA system is applied. 7. In each of m (m ≦ M) carrier receiving means to which M receiving carriers are distributed, a plurality of received signals diversity-received from a mobile station apparatus are individually separated for each sector of one receiving carrier. A plurality of processes for converting the digital reception signals into digital reception signals for one or more of the distributed one or more reception carriers at the same time, and converting the converted digital reception signals for all sectors of the same reception carrier into a first bus means. By performing a synchronization process and a RAKE reception demodulation process based on maximum ratio combining on the collected digital received signal, an uplink baseband signal is generated for each uplink radio channel from the mobile station device. Performs transmission power control processing for each of the uplink radio channels, outputs downlink transmission power information, and the carrier receiving means accommodates a plurality of reception carriers. If so, a baseband process is performed on a digital reception signal of an arbitrary reception carrier in the carrier reception means. 8. An uplink main signal is restored by performing de-interleaving processing, error detection and correction decoding processing on the uplink baseband signal output from the baseband processing means, and then performing channel decoding. Performing a channel decoding function and a codec process of performing a downlink main signal, performing error detection / correction coding, interleaving, and channel coding for transmitting a symbol sequence after channel coding as a downlink baseband signal,
The reception signal in the base station apparatus according to claim 7, wherein the function of the baseband processing performed for each of the m carrier receiving means is connected to an arbitrary function of the codec processing by the second bus means. Processing method. 9. Converting a downlink baseband signal to an RF transmission signal, adjusting a transmission level for each radio channel by transmission power information, superimposing RF transmission signals of all radio channels for each transmission carrier, The transmission processing for multiplexing a plurality of carriers is performed simultaneously for each of a plurality of sectors, and the function of the transmission processing for each of the plurality of sectors is determined by the transmission power information output simultaneously from the m carrier reception means by the third bus means 9. The reception signal in the base station apparatus according to claim 8, wherein a downlink baseband signal simultaneously output from the function of the codec processing can be simultaneously received by an arbitrary combination corresponding to the downlink radio channel. Processing method.