JP2008167496A - Wireless base station equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contribute to improvement of processing efficiency and alleviation of processing load concentration when baseband transmission / reception processing is realized by software using a general-purpose processor, and to easily cope with a change in hardware platform architecture. A radio base station apparatus having a software architecture is provided.
In a radio base station apparatus that implements baseband transmission / reception processing by software using a general-purpose processor, the functions for performing baseband transmission / reception processing are not distributed for a plurality of calls, and the same processing is summarized as functions. This is a radio base station apparatus that performs processing in a batch, allocates processing resources in accordance with the priority set for each functional unit in the same activation cycle in each functional unit.
[Selection] Figure 1

Description

  The present invention relates to a radio base station apparatus used in a W-CDMA (Wideband Code Division Multiple Access) system and the like, and in particular, software using a general-purpose processor such as a CPU (Central Processing Unit) and a DSP (Digital Signal Processor). The present invention relates to a radio base station apparatus that can realize baseband transmission / reception processing, improve processing efficiency, and reduce concentration of processing load.

A radio base station apparatus used in a conventional W-CDMA system will be described with reference to FIG. FIG. 33 is a configuration block diagram of a conventional radio base station apparatus.
As shown in FIG. 33, the radio base station apparatus includes baseband transceivers 11, 12, and 13, a channel (CH) multiplexer 21, and a baseband channel controller 31.

The baseband transmission / reception units 11, 12, and 13 have the following functional units on the transmission side and the reception side.
The transmission side includes an encoding unit 102-1, -2, a data multiplexing unit 102, a physical channel mapping unit 103, a modulation unit 104, a spreading unit 105, a power control unit 106, and a power setting unit 107. have.

Encoding sections 102-1 and -2 encode transmission user data composed of call control data and communication data.
The data multiplexing unit 102 multiplexes transmission user data such as encoded call control data and communication data.
The physical channel mapping unit 103 maps the multiplexed data to a CDMA physical channel (code channel), inserts radio section control data such as a pilot symbol for synchronous detection and a TCP (Transmitter Power Control) command, and transmits transmission data. A frame is generated.

The modulation unit 104 performs primary modulation such as QPSK (Quadrature Phase Shift Keying) and 16QAM (Quadrature Amplitude Modulation) on the mapped physical channel signal.
The spreading unit 105 performs spreading modulation using a spreading code for each call.
The power control unit 106 determines a power value for each call.
The power setting unit 107 multiplies the spread code for each call by the determined power value.

  The receiving side includes a path search unit 201, despreading units 202-1 and -2, SIR measurement unit 203, insertion TPC generation unit 204, synchronous detection RAKE combining units 205-1 and -2, control data determination Unit 206, user data determination unit 207, reception user data type determination unit 208, data separation unit 209, and data decoding units 210-1 and -2.

The path search unit 201 performs despreading while shifting the phase of the reference code using the reference code for each call from the received signal, and extracts the received signal path of the call.
The despreading units 202-1 and -2 perform despreading on the path position extracted by the path search unit 201.

The SIR measurement unit 203 uses the radio section control data channel reception signal for each call extracted by the despreading units 202-1 and -2, and receives the reception quality (SIR: Signal to Interference Ratio: desired signal power to interference signal power ratio). ).
The insertion TPC generation unit 204 determines an insertion TPC command from the SIR measured by the SIR measurement unit 203.

  Synchronous detection RAKE combining units 205-1 and -2 perform synchronous detection RAKE combining on the radio section control data channel and user data channel received signals for each call extracted by the despreading units 202-1 and -2, respectively. It is something to apply.

  The control data determination unit 206 determines the radio section control data channel reception signal subjected to the synchronous detection RAKE combining by the synchronous detection RAKE combining units 205-1 and -2, and outputs a determination result regarding the received TPC command to the power control unit 106. The user data type identification data is output to the received user data type determination unit 208 described later.

The user data determination unit 207 determines a user data channel reception signal that has been subjected to synchronous detection RAKE combining by the synchronous detection RAKE combining units 205-1 and -2.
The received user data type determination unit 208 determines the data type of the user data (the method of combining call control data and communication data) transmitted from the transmission side in the frame using the determination result of the user data type identification data. It is.

The data separating unit 209 separates user data into call control data and communication data using the determination result of the received user data type determining unit 208.
The data decoding units 210-1 and -2 decode the call control data and the communication data separated by the data separation unit 209.

In FIG. 33, a baseband transmission / reception parameter group storage unit 301 for storing a baseband transmission / reception parameter group is provided, and the baseband transmission / reception units 11, 12, and 13 perform transmission / reception using the parameters.
The baseband channel control unit 31 sets operation parameters for the baseband transmission / reception units 11, 12, and 13, and the set operation parameters are stored in the baseband transmission / reception parameter group storage unit 301.
The CH multiplexing unit 21 is a part that adds and multiplexes the data after transmission processing for each call.

Next, the operation of the conventional radio base station will be described.
The transmission user data encoded by the encoding units 101-1 and -2 is input to the data multiplexing unit 102, and is encoded by the encoding units 101-1 and -2 in the data multiplexing unit 102, respectively. Multiplexing call control data and communication data. The multiplexed transmission data is input to the physical channel mapping unit 103.

  The physical channel mapping unit 103 maps the multiplexed data to a CDMA physical channel (code channel), inserts radio interval control data such as a pilot symbol for synchronous detection and a TPC command, and generates a transmission data frame.

  As the pilot symbol, a unique symbol known to both the base station and the terminal is inserted based on the system timing of the call. For the TPC command, for example, the SIR is measured from the received radio section control data, and the insertion TPC generation unit 204 determines and generates the insertion TPC according to the measurement result.

In general, compare the reference SIR and measured SIR of the call,
When measurement SIR> reference SIR, a down command is generated. When measurement SIR <reference SIR, an up command is generated.
The transmission data framed by the physical channel mapping unit 103 is modulated by the modulation unit 104, spread by the spreading unit 105, and input to the power setting unit 107.

  On the other hand, the received baseband signal is first subjected to path timing extraction by the path search unit 201. In the path extraction, for example, despreading (correlation calculation) is performed while shifting the phase of the reference code using the reference code for the call, and when the correlation value exceeds the threshold value, the timing is set as the path timing. judge.

  The path extracted by the path search unit 201 is despread by the despreading units 202-1 and -2, and is separated into a radio section control data signal (control data CH) and a user data signal (user data CH). Is done. The radio section control data signal and the user data signal are synchronously detected and RAKE combined by corresponding synchronous detection RAKE combining units 205-1 and -2, respectively.

Also, the reception quality (SIR) for each call is measured by the SIR measurement unit 203 using the radio section control data signal after despreading, and is used for the determination of the insertion TPC in the insertion TPC generation unit 204.
The radio section control data after the synchronous detection is input to the control data determination unit 206, and the control data determination unit 206 determines, for example, a TPC command and user data type identification data for the radio section control data.

  The determined TPC command generally has information of “power UP” and “power DOWN”, and the power control unit 106 determines, for example, “power UP” with respect to the current power value from the TPC command determination result. In the case of +1 dB, and in the case of “power DOWN”, the power of −1 dB is determined. The determined power value is multiplied by transmission data in power setting section 107 and output. The transmission data bit-extended by the power value for each call is multiplexed by the CH multiplexing unit 21 and output.

  On the other hand, the user data type identification data is input to the reception user data type determination unit 208 after the determination. The user data type identification data is information for determining the data type of the user data transmitted from the transmission side in the frame, and the frame is formed by combining the call control data and communication data having any format. The transmission user data is configured (multiplexed).

  The reception user data type determination unit 208 determines the configuration state of the user data based on the user data type identification data. The data separation unit 209 separates the user data into call control data and communication data according to the data configuration state determined by the received user data type determination unit 208, and the call control data and communication data after the separation are data decoded. Decoded by the units 210-1 and -2, call control data and communication data are obtained.

  In the radio base station, the baseband transmission / reception units 11, 12, and 13 are independently assigned to perform transmission / reception processing by setting operation parameters from the baseband channel control unit 31 for each of the above operations for a plurality of calls. It will be.

  In particular, in the base station configuration in the prior art, for example, one or a plurality of baseband transmission / reception units are realized by hardware, and the hardware of the baseband transmission / reception unit sets operation parameters so that operation parameters can be set. A register configuration is provided to the baseband channel control unit 31, and the baseband channel control unit 31 implements baseband transmission / reception processing for a plurality of calls by setting and controlling the register. In other words, hardware (resources) is allocated exclusively for calls.

In recent years, as a wireless communication technology, there is a so-called software wireless technology in which signal processing necessary for transmission and reception is realized by software using a general-purpose processor.
For example, Japanese Patent Application Laid-Open No. 2004-274300 (Applicant: Hitachi Kokusai Electric Co., Ltd.) discloses a software defined radio.

JP 2004-274300 A

  However, when a radio base station is configured using software radio technology, there are the following problems when using a configuration similar to the conventional technology, that is, a configuration in which resources are dedicated to calls.

  When processor processing is considered, a plurality of processes cannot be performed in parallel in real time unlike hardware processing, and serial processing is performed. When a configuration in which processor resources are allocated to calls as in the conventional configuration concept, resources are allocated serially for each call.

  However, when considering the operation of a plurality of calls such as a radio base station, it is necessary to proceed with a plurality of processes at the same time, in other words, uniformly, so that a dedicated resource for only one call is used. In the case of assignment, as shown in FIG. 34, the processing may be in time for the transmission timing for each call and the processing timing for each call, but as shown in FIG. 35, in the transmission timing for each call and the processing timing for each call. There is a problem in that there are cases where the processing of other calls is not in time. FIG. 34 is a diagram illustrating a case where processing is in time for the transmission timing for each call and processing timing for each call, and FIG. 35 is a diagram illustrating a case where processing is not in time for the transmission timing for each call and processing timing for each call. It is.

  In other words, it is required that the effective processing time for each call with respect to the allowable time is short, that is, this is equivalent to concentrated load. When the system allows this situation, high-speed processing must be performed to cope with this load concentration. Since it is assumed that processing for each call is performed using a processor, it is possible to use a high-speed processor that can cope with load concentration, but the problem is that generally a high-speed processor is more expensive. There is.

Even when the baseband transmission / reception processing is realized by software, the hardware platform architecture may differ depending on the capability of the processor.
In other words, it is cheaper in the future for expensive processors in the future, or it becomes possible to consolidate what was processed using multiple processors into one, it is cheaper for the whole system to replace the processor May be configurable.
In that case, if the software architecture is highly dependent on the architecture of the original hardware platform, a change in the hardware platform may cause a significant change in the software architecture.

  The present invention has been made in view of the above-described circumstances. When a baseband transmission / reception process is realized by software using a general-purpose processor, the present invention can contribute to improvement of processing efficiency and relaxation of processing load. An object of the present invention is to provide a radio base station apparatus having a software architecture that can easily cope with a change in the architecture of a wear platform.

  The present invention for solving the problems of the conventional example described above is based on a general-purpose processor, and in a radio base station apparatus that implements baseband transmission / reception processing by software, for each call control data and communication data for a plurality of calls. Transmission encoding processing function unit that performs encoding, multiplexing processing of call control data and communication data in units of radio data frames for each call, encoding processing, mapping processing for physical channel, modulation processing for a plurality of calls Transmission frame unit processing function unit for controlling the conditions for determining each transmission power for a plurality of calls, and controlling the conditions for determining each inserted TPC command for a plurality of calls Power control system function unit and spread processing, power determination processing, power setting processing, and multi-call channel multiplexing processing for multiple calls A transmission spreading system function unit to perform, a path search process for extracting a path for each of a plurality of calls, a reception chip synchronization despreading system function unit to perform a despreading process, and a radio section for each of a plurality of calls A radio section control data processing function unit that performs SIR measurement processing, insertion TPC determination processing, radio section control data synchronous detection RAKE processing, radio section control data determination processing, and received user data type determination processing on the control data; A received frame unit user data processing function unit for performing user data synchronous detection RAKE processing, user data determination processing, call control data and communication data separation processing in units of radio data frames, and a plurality of calls Receiving / decoding processing function unit for decoding each call control data and communication data, and baseband transmission / reception processing Perform call admission control, call response control, and operation parameter setting for each function unit for call setting from the upper function unit of each function unit to obtain report data from each function unit, and And a baseband channel control unit that performs the above-described reporting, the processing activation period and the processing data unit in each functional unit are the same, and the processing priority is set for each functional unit.

  The present invention provides execution information for executing a function of baseband transmission / reception processing in a radio base station apparatus that implements baseband transmission / reception processing by software using a general-purpose processor, Interface through an execution information acquisition unit that acquires identification information, control data necessary to execute a function, and a control data interface unit that interfaces the control status and control data of the own function. A control determination unit that determines a control state of the own function at the time of executing the process using the control data and sets the result as a parameter, a user data interface unit for interfacing user data, and a user data interface unit User data acquired via the control and parameters from the control determination unit A process operation unit that performs actual processing or calculation using the process, a process execution information output unit that outputs the execution information passed to the function of the next process or another function in response to the result of each process in the function, and monitors the execution status of each unit And a maintenance monitoring data interface unit that outputs a maintenance monitoring result, a unit of data to be controlled or processed by the above function, a control or processing cycle, a priority to be controlled or processed, control or processing A function processing start manager is provided that is divided into a plurality of function groups according to an event and provides a processing cycle, a priority, and a start trigger for each event for the plurality of divided function groups. .

  The present invention is characterized in that, in the radio base station apparatus, processing resources are preferentially assigned to high priority processing, and processing resources are assigned in a round robin manner when processing having the same priority overlaps. And

  According to the present invention, in a radio base station apparatus that implements baseband transmission / reception processing by software using a general-purpose processor, transmission encoding processing for encoding each call control data and communication data for a plurality of calls, respectively. A functional unit, and a transmission frame unit processing functional unit for performing a multiplexing process, an encoding process, a mapping process for a physical channel, and a modulation process for call control data and communication data in units of radio data frames for each call for a plurality of calls. Controlling a condition for determining each transmission power for a plurality of calls, and controlling a condition for determining each insertion TPC command for a plurality of calls, and a plurality of functions A transmission spreading system function unit for performing spreading processing, power determination processing, power setting processing, and channel multiplexing processing of multiple calls for each call; Receiving chip synchronization despreading system function unit for performing path search processing and despreading processing for path extraction for each call, and SIR measurement processing for each radio section control data for a plurality of calls, Wireless section control data processing function unit for performing insertion TPC determination processing, synchronous detection RAKE processing of wireless section control data, determination processing of wireless section control data, reception user data type determination processing, and wireless data for a plurality of calls User data synchronous detection RAKE processing in frame units, user data determination processing, reception frame unit user data processing function unit for performing call control data and communication data separation processing, and each call control data for a plurality of calls, Reception / decoding processing function unit for decoding communication data, and higher-level units of the above function units for executing baseband transmission / reception processing Baseband channel control unit that performs call admission control, call response control for the call setting from each unit, operation parameter setting for each function unit, obtains report data from each function unit, and reports to the host And the processing start unit and the processing data unit in each functional unit are the same, and the processing priority is set for each functional unit. When baseband transmission / reception processing is realized with this, there is an effect that it is possible to contribute to improvement of processing efficiency and relaxation of processing load concentration.

  According to the present invention, in a radio base station apparatus that implements baseband transmission / reception processing by software using a general-purpose processor, execution information for executing the function of baseband transmission / reception processing is passed between the functions. Interface the execution information acquisition unit that acquires the identification information of the process, the control data necessary to execute the function, the control data interface unit that interfaces the control status and control data of the own function, and the control data interface unit. A control determination unit that determines a control state of the own function at the time of processing execution and sets the result as a parameter, a user data interface unit for interfacing user data, and a user data interface User data acquired via the control section and parameters from the control determination section A processing calculation unit that performs actual processing or calculation using a data, a processing execution information output unit that outputs the execution information passed to the function of the next process or another function in response to the result of each processing in the function, and the execution of each unit A maintenance monitoring unit that monitors the status and a maintenance monitoring data interface unit that outputs a maintenance monitoring result, a unit of data to be controlled or processed by the above function, a control or processing cycle, a priority of control or processing, and control Alternatively, a radio base provided with a function unit processing activation manager that is implemented by dividing into a plurality of function groups according to the event to be processed, and that provides a processing cycle, priority, and activation trigger for each event for the plurality of divided function groups Because it is a station device, when using a general-purpose processor to implement baseband transmission / reception processing with software, it contributes to improving processing efficiency and reducing processing load concentration. Can, there is an effect that can further response to changes in the architecture of the hardware platform has an easy software architecture.

  According to the present invention, since the processing resource is preferentially allocated to the processing with high priority, and the processing having the same priority is overlapped, the radio base station apparatus allocates the processing resource in a round robin manner. There is an effect that the processing resources can be efficiently allocated according to the priority.

Embodiments of the present invention will be described with reference to the drawings.
The radio base station apparatus according to the embodiment of the present invention does not distribute each function for performing baseband transmission / reception processing for each of a plurality of calls, and collectively processes the same processing as a function. Then, in the same processing cycle as the same processing data unit, assign processing resources according to the priority set for each functional unit, and when using a general-purpose processor to implement baseband transmission / reception processing in software, The software architecture can contribute to improvement of processing efficiency and relaxation of processing load concentration, and can easily cope with a change in the architecture of the hardware platform.

An embodiment of the present invention will be described with reference to FIG. FIG. 1 is a schematic configuration block diagram of a radio base station according to an embodiment of the present invention.
As shown in FIG. 1, the radio base station (first base station) according to the embodiment of the present invention includes an upper layer control data interface buffer 71, a channel control data buffer 72, and an upper layer transmission data interface buffer 73. And a transmission data buffer 74, an upper layer reception data interface buffer 75, and a reception data buffer 76, and each baseband functional unit takes an interface through each buffer.

  The upper layer control data interface buffer 71 interfaces call setting control information from the upper layer to the baseband unit and report information from the baseband unit to the upper layer.

  The channel control data buffer 72 interfaces operation parameters and report information between the baseband channel control function unit and the baseband transmission / reception function unit, and channel control data between the baseband transmission / reception function units.

The upper layer transmission data interface buffer 73 interfaces transmission data with the upper layer.
The transmission data buffer 74 interfaces transmission data between the baseband transmission / reception function units.

The upper layer received data interface buffer 75 interfaces received data with the upper layer.
The reception data buffer 76 interfaces reception data between the baseband transmission / reception function units.

[Baseband channel control function part]
The baseband channel control function unit 41 will be described with reference to FIG. FIG. 2 is a schematic configuration diagram of the baseband channel control function unit 41.
As shown in FIG. 2, the baseband channel control function unit 41 includes a control data interface unit 411 that interfaces with the upper layer control data interface buffer 71 and the channel control data buffer 72, and an upper function unit of the baseband transmission / reception unit. A call admission control unit 412, a call response control unit 413, a transmission / reception function unit operation parameter setting control unit 414 for setting operation parameters for each function unit of the baseband transmission / reception unit, and each function unit A report data acquisition control unit 415 that acquires report data from the host computer and reports to a higher level.

[Transmission coding function section]
The transmission encoding function unit 52 will be described with reference to FIG. FIG. 3 is a schematic configuration diagram of the transmission encoding function unit.
As shown in FIG. 3, the transmission encoding function unit 52 includes transmission encoding units 523 and 524 that perform encoding of call control data and communication data for a plurality of calls, and transmission encoding units 523 and 524. A transmission encoding processing control unit 522 that controls parameters and status for the control, a control data interface unit 521 for interfacing with the channel control data buffer 72, an upper layer transmission data interface buffer 73, a transmission data buffer 74, and an interface. A transmission data interface unit 529 is provided.

[Transmission frame unit processing control unit]
The transmission frame unit processing function unit 53 will be described with reference to FIG. FIG. 4 is a schematic configuration diagram of the transmission frame unit processing function unit.
As shown in FIG. 4, the transmission frame unit processing function unit 53 is a data multiplexing processing unit that multiplexes and encodes call control data and communication data in units of radio data frames of each call for a plurality of calls. 534, a physical CH mapping processing unit 535 that performs mapping processing on a physical channel, a modulation processing unit 533 that performs modulation processing, and a parameter and status control for operations of the data multiplexing processing unit 534 and physical CH mapping processing unit 535 A transmission frame unit processing control unit 532 to perform, a control data interface unit 531 for interfacing with the channel control data buffer 72, and a transmission data interface unit 539 for interfacing with the transmission data buffer 74 are provided.

[Transmission diffusion function section]
The transmission diffusion system function unit 54 will be described with reference to FIG. FIG. 5 is a schematic configuration diagram of the transmission diffusion system function unit.
As shown in FIG. 5, the transmission spreading system function unit 54 includes a spreading processing unit 544 that performs spreading processing for a plurality of calls, a power determination processing unit 545 that performs power determination processing, and power that performs power setting processing. Parameters and status of operations for the setting processing unit 543, the CH multiplexing processing unit 546 that performs channel multiplexing processing of a plurality of calls, the power setting processing unit 543, the spreading processing unit 544, the power determination processing unit 545, and the CH multiplexing processing unit 546 A transmission spreading system control unit 542 that performs control, a control data interface unit 541 for interfacing with the channel control data buffer 72, and a transmission data interface unit 549 for interfacing with the transmission data buffer 74 are provided.

[Receiving chip synchronization despreading system functional unit]
The reception chip synchronous despreading function unit 61 will be described with reference to FIG. FIG. 6 is a schematic configuration diagram of the receiving chip synchronization despreading system functional unit.
The reception chip synchronous despreading function unit 61 includes a path search processing unit 613 that extracts each path for a plurality of calls, a control CH despreading processing unit 614 that performs despreading processing of the control channel, and a user data channel. The user data CH despreading processing unit 615 that performs the despreading processing, the path search processing unit 613, the control CH despreading processing unit 614, and the reception chip that controls the parameters and status for the calculation of the user data CH despreading processing unit 615 A synchronous despreading system control unit 612, a control data interface unit 611 that interfaces with the channel control data buffer 72, and a reception data interface unit 619 that interfaces with the reception data buffer 76 are provided.

[Wireless section control data processing function part]
The radio section control data processing function unit 62 will be described with reference to FIG. FIG. 7 is a schematic configuration diagram of the radio section control data processing function unit.
As shown in FIG. 7, the radio section control data processing function unit 62 performs an SIR measurement processing section 623 that performs SIR measurement processing on each radio section control data for a plurality of calls, and an insertion TPC determination process. Insertion TPC determination processing unit 624, control CH synchronous detection RAKE processing unit 625 that performs synchronous detection RAKE processing of radio section control data, control data determination processing unit 626 that performs radio section control data determination processing, and reception user data type determination A receiving user data type determination processing unit 627 that performs processing, an SIR measurement processing unit 623, an insertion TPC determination processing unit 624, a control CH synchronous detection RAKE processing unit 625, a control data determination processing unit 626, and a receiving user data type determination processing unit 627 The wireless section control data processing control unit 622 controls parameters and status for the calculation of , And a control data interface 621 to take the channel control data buffer 72 and the interface Le and a receiving data interface unit 629 which takes the receive data buffer 76 and the interface Le.

[User Data Processing Function Unit for Received Frame]
The received frame unit user data processing function unit 63 will be described with reference to FIG. FIG. 8 is a schematic configuration diagram of a received frame unit user data processing function unit.
As shown in FIG. 8, the received frame unit user data processing function unit 63 performs user data synchronous detection RAKE processing unit 633 that performs synchronous detection RAKE processing of user data in units of radio data frames for a plurality of calls. A user data determination processing unit 634 that performs user data determination processing, a data distribution processing unit 635 that performs separation processing of call control data and communication data, a user data CH synchronous detection RAKE processing unit 633, and a user data determination processing unit 634 And a reception frame unit processing control unit 632 that controls parameters and status for the calculation of the data distribution processing unit 635, a control data interface unit 631 that interfaces with the channel control data buffer 72, and a reception data buffer 76 and interface. Receive data interface And an over scan portion 639.

[Reception decoding processing function part]
The reception decoding processing function unit 64 will be described with reference to FIG. FIG. 9 is a schematic configuration diagram of the reception decoding processing function unit.
As shown in FIG. 9, the reception decoding processing function unit 64 includes data decoding processing units 643 and 644 that perform decoding processing of call control data and communication data for a plurality of calls, and a data decoding processing unit. 643, a reception decoding processing control unit 642 that controls parameters and status for the calculation, a control data interface unit 641 that interfaces with the channel control data buffer 72, and reception data that interfaces with the reception data buffer 76 And an interface unit 649.

[Power control function section]
The power control function unit 42 will be described with reference to FIG. FIG. 10 is a schematic configuration diagram of a power control system function unit.
As shown in FIG. 10, the power control system function unit 42 includes a power setting status control unit 422 that controls conditions (power setting status) for determining transmission power for a plurality of calls, and a plurality of calls. Are provided with a TPC insertion status control unit 423 for controlling a condition (TPC insertion status) for determining a TPC command to be inserted respectively, and a control data interface unit 421 that interfaces with the channel control data buffer 72. .

[Operation of wireless base station]
Next, the operation in the radio base station shown in FIG. 1 will be described.
For the baseband unit, control data is written to the upper layer control data interface buffer 71 from an upper layer such as a call control unit. The control data from the upper layer includes call setting information including control parameters at the time of call setup, call release information at the time of call release, and the like.

  The baseband channel control function unit 41 periodically checks the control data in the upper layer control data interface buffer 71 via the control data interface unit 411, and when there is control to be accepted such as call setting information, The call admission control unit 412 performs call admission control for.

  Under the control of the call admission control unit 412, the transmission / reception function unit operation parameter setting control unit 414 acquires control parameters via the control data interface unit 411, and creates operation parameters for each function unit of the baseband transmission / reception unit. Then, the channel control data buffer 72 is set via the control data interface unit 411.

  Under the control of the transmission / reception function unit operation parameter setting control unit 414, the call response control unit 413 performs call response control so as to notify the upper layer that the call has been accepted. The call response control unit 413 outputs response information to the upper layer control data interface buffer 71 via the control data interface unit 411.

  Further, as will be described later, the channel control data buffer 72 stores report data from each functional unit of the baseband transmission / reception unit. In the baseband channel control function unit 41, the report data acquisition control unit 415 periodically acquires report data in the channel control data buffer 72 via the control data interface unit 411, creates report data for the host, and creates a control data interface The report data is output to the upper layer control data interface buffer 71 via the unit 411.

Here, a method of using the channel control data buffer 72 will be described with reference to FIG. FIG. 11 is a diagram illustrating a channel control data buffer structure.
As shown in FIG. 11, the channel control data buffer 72 is a buffer that stores baseband channel control unit setting information, baseband channel control unit report information, and baseband transmission / reception function unit channel control interface information.

The baseband channel control unit setting information is an operation parameter set in each transmission / reception function unit created by the transmission / reception function unit operation parameter setting control unit 414.
The baseband channel control unit report information is a result of transmission / reception processing performed by each transmission / reception function unit. For example, the baseband channel control unit report information includes information to be reported to a higher layer such as a transmission / reception processing completion notification and a quality measurement result .

  Baseband transmission / reception function unit channel control interface information is information for notifying the function unit or the other function unit of the next process about the result of signal processing unique to each function unit and the signal processing status of each function unit. It is. For example, information on determination TPC and insertion TPC in transmission power control can be handled as the interface information.

Also, synchronization information indicating whether or not the call is wirelessly synchronized can be handled as the interface information.
Alternatively, it is also possible to provide process start information for the next process through the interface according to the present embodiment. That is, as a result of a certain process, through the interface according to the present embodiment that the process of the next process can be started, the functional unit of the next process periodically checks the interface according to the present embodiment, If it can recognize that it can be activated, it will process its own function.

As shown in FIG. 11, the channel control data buffer 72 has a configuration in which parameters, activation information, and the like for all calls used in the baseband transmission / reception unit are stored in the buffer.
When each functional unit of the baseband transmission / reception unit is provided with processing resources, it acquires operation parameters and activation information necessary for processing one or more calls from the channel control data buffer 72 and performs transmission / reception processing. .

Next, the operation of each transmission / reception function unit will be described. In addition, about the specific process mounted in each transmission / reception function part, detailed description is abbreviate | omitted when the process itself in the prior art is fundamentally the same.
The upper layer transmission data interface buffer 73 stores call control data and communication data to be transmitted from the upper layer. When the processing resource is given, the transmission encoding processing function unit 52 acquires transmission data via the transmission data interface unit 529 and acquires operation parameters via the control data interface unit 521.

  The acquired operation parameter is converted or expanded into a calculation parameter form of the data encoding processing units 523 and 524 by the transmission encoding processing control unit 522. For example, the operation parameter is set in the form of an encoding method and an encoding rate, and the operation parameter is converted into an actual parameter of the encoding operation.

  Then, the data encoding processing units 523 and 524 perform the encoding operation using the operation parameters and the transmission data acquired via the transmission data interface unit 529. The transmission data after the calculation is output to the transmission data buffer 74 via the transmission data interface unit 529, the calculation completion result, the activation information for the transmission frame unit processing function unit 53, and the channel control data via the control data interface unit 521. The data is output to the buffer 72.

  When the processing resource is given, the transmission frame unit processing function unit 53 acquires the activation information from the transmission encoding processing function unit 52 via the control data interface unit 531, and sets the operation parameter via the control data interface unit 531. get.

  The acquired operation parameters are converted or expanded in the form of calculation parameters of the modulation processing unit 533, the data multiplexing processing unit 534 and the physical CH mapping processing unit 535 in the transmission frame unit processing control unit 532.

  The modulation processing unit 533, the data multiplexing processing unit 534, and the physical CH mapping processing unit 535 perform each process using the calculation parameters and the transmission data acquired from the transmission data buffer 74 via the transmission data interface unit 539. Thereafter, the processed transmission data is output to the transmission data buffer 74 via the transmission data interface unit 539, and the calculation completion result is output to 72 via the control data interface unit 531.

  When the processing resource is given, the power control system function unit 42 acquires an operation parameter via the control data interface unit 421, and based on the acquired operation parameter, the power setting status control unit 422 and the TPC insertion status control unit 423. Each control is performed. The status information determined by the power setting status control unit 422 and the TPC insertion status control unit 423 is output to the channel control data buffer 72 via the control data interface unit 421.

Here, the power control operation will be described with reference to FIGS. FIG. 12 is a diagram illustrating an operation example of the power setting status control unit, and FIG. 13 is a diagram illustrating an operation example of the TPC insertion status control unit.
FIG. 12 shows an example of conditions for determining transmission power in W-CDMA (Wide Band Code Division Multiple Access). The conditions (status) for determining the transmission power are summarized as shown in the table of FIG. FIG. 14 is a diagram illustrating conditions for determining transmission power.
The input in FIG. 14 is an operation parameter obtained from the channel control data buffer 72 via the control data interface unit 421. Based on this operation parameter, the power setting status control unit 422 determines the condition of FIG. Confirm.

  As shown in FIG. 12 and FIG. 14, when the input is compressed mode GAP (Generic Access Profile) information, the power setting status control unit 422 determines whether or not there is a GAP in the slot. If there is a GAP, the transmission is turned on.

Next, when transmission is on, if the input is synchronous information, frame synchronization or asynchronous is determined, and if asynchronous, a non-loop (Loop) state is output, and if synchronous, a loop state is output.
In the non-loop state, when the input is the initial synchronization information, it is determined whether it is before the initial synchronization or after the initial synchronization, and the power increasing operation state is output before the initial synchronization, and the power maintaining operation state is output after the initial synchronization. .

  Next, in the power increase operation state, when the input is the power increase operation control cycle and the power increase operation control count, it is determined whether the power increase operation is continuing or the power increase operation is completed, and the power increase operation is continuing. If so, a power increase state is output, and if the power increase operation ends, a synchronization wait state is output.

  In the case of the power increase state, when the input is the power increase operation control period, it is determined whether the power increase timing has arrived or the power increase timing has not yet arrived. If the power increase timing has not arrived, the power maintenance state is output.

As a result of the above determination, if the power is in an increased state, forced power increase control is performed. If power is maintained and synchronization is waited, power value hold (maintenance) control is performed.
In the case of the Loop state, when the input is DL RPP (Down Link Recovery Power Period) information, it is determined whether it is a DL RPP period or a non-DL RPP period. , ± 1 control state is output, and if it is a non-DL RPP interval, ± 2 control state is output. If the control state is ± 1, control of ± 1 dB is performed based on the determination TPC, and if the control state is ± 2, control of ± 2 dB is performed based on the determination TPC.

If the transmission is off, transmission off is controlled.
In each state, the power setting status control unit 422 performs power control status determination, selects one of the above-described controls based on the determination result, and executes the selected control.

The case of determining the insertion TPC will be described with reference to FIG. FIG. 13 shows an example of conditions for determining the insertion TPC in W-CDMA, and the conditions (status) for determining the insertion TPC are summarized as shown in the table of FIG. FIG. 15 is a diagram illustrating conditions for determining the insertion TPC.
The input in FIG. 15 is an operation parameter obtained from the channel control data buffer 72 via the control data interface unit 421. Based on this operation parameter, the TPC insertion status control unit 423 determines the condition of FIG. Confirm.

  As shown in FIGS. 13 and 15, when the input is compressed mode GAP information, the TPC insertion status control unit 423 determines whether or not there is a GAP in the slot. If there is a GAP, the non-insertion process is performed.

Next, in the case of the insertion state, when the input is synchronous information, frame synchronization or asynchronous is judged, and if it is asynchronous, the alternating insertion state is output, and if it is synchronous, the normal insertion state is output.
In the alternating insertion state, when the input is an alternating cycle, it is determined whether the alternating change timing has arrived or the alternating change timing has not arrived.If the alternating change timing has arrived, the inverted insertion state is set to the alternating change timing. If it has not arrived, the forced UP insertion state is output.

As a result of the determination, the TPC insertion status control unit 423 performs control to insert an inverted output with respect to the previous output if it is an inverted insertion state, and insert a forced UP command if it is a forced UP insertion state.
Further, in the normal insertion state, the comparison result between the target (target) SIR and the SIR measurement result is inserted, and in the non-insertion state, the insertion is not performed.
In each state, the TPC insertion status control unit 423 performs insertion TPC status determination, selects one of the above-described controls based on the determination result, and executes the selected control.

  Then, when a processing resource is given, the transmission diffusion system function unit 54 acquires an operation parameter via the control data interface unit 541. The acquired operating parameters are converted or expanded into the form of operational parameters of the power setting processing unit 543, the spreading processing unit 544, the power determination processing unit 545 and the CH multiplexing processing unit 546 by the transmission spreading system control unit 542. The calculation parameters here include information on the power setting status from the power control system function unit 42.

In the power setting processing unit 543, the diffusion processing unit 544, the power determination processing unit 545, and the CH multiplexing processing unit 546, each processing is performed using the operation parameters and the transmission data acquired from the transmission data buffer 74 via the transmission data interface unit 549. I do.
The transmission data processed by the power setting processing unit 543, the diffusion processing unit 544, the power determination processing unit 545, and the CH multiplexing processing unit 546 is output to the transmission data buffer 74 via the transmission data interface unit 549, and the calculation completion result Is output to the channel control data buffer 72 via the control data interface unit 541.

  Thereafter, although not shown, the wireless interface unit acquires the baseband signal after spreading and multiplexing from the transmission data buffer 74, converts it to an analog wireless signal, and transmits it.

On the other hand, as a reception side operation, a wireless interface unit (not shown) converts an analog wireless signal into a baseband digital signal and stores it in the reception data buffer 76.
Then, when processing resources are given to the reception chip synchronous despreading function unit 61, operation parameters are acquired via the control data interface unit 611. The acquired operation parameters are converted into the form of calculation parameters of the path search processing unit 613, the control CH despreading processing unit 614 and the user data CH despreading processing unit 615 by the reception chip synchronous despreading system control unit 612, or expanded. To do.

The path search processing unit 613, the control CH despreading processing unit 614, and the user data CH despreading processing unit 615 use the calculation parameters and the received data acquired from the received data buffer 76 via the received data interface unit 619. Perform the process.
The received data after processing in the path search processing unit 613, the control CH despreading processing unit 614 and the user data CH despreading processing unit 615 is output to the received data buffer 76 via the reception data interface unit 619, and the calculation completion result Are output to the channel control data buffer 72 via the control data interface unit 611.

The wireless section control data processing function unit 62 acquires an operation parameter via the control data interface unit 621 when processing resources are given. The acquired operation parameters are the SIR measurement processing unit 623, the insertion TPC determination processing unit 624, the control CH synchronous detection RAKE processing unit 625, the control data determination processing unit 626, and the received user data type determination processing in the radio section control data processing unit 622. The data is converted or expanded into the calculation parameter form of the unit 627.
The calculation parameter here includes information on the TPC insertion status from 42.

  The SIR measurement processing unit 623, the inserted TPC determination processing unit 624, the control CH synchronous detection RAKE processing unit 625, the control data determination processing unit 626, and the reception user data type determination processing unit 627, via the calculation parameter and reception data interface unit 629. Then, processing in each unit is performed using the reception data (control CH) acquired from the reception data buffer 76.

  The received data after processing by the SIR measurement processing unit 623, the inserted TPC determination processing unit 624, the control CH synchronous detection RAKE processing unit 625, the control data determination processing unit 626, and the reception user data type determination processing unit 627 is radio section control data. The processing function unit 62 terminates as a wireless section control data processing result, and is output to the channel control data buffer 72 via the control data interface unit 621. The activation information for the received frame unit user data processing function unit 63 is control The data is output to the channel control data buffer 72 via the data interface unit 621.

  The reception frame unit user data processing function unit 63 obtains activation information from the radio section control data processing function unit 62 via the control data interface unit 631 when processing resources are given. When the activation information is acquired, the operation parameter is acquired via the control data interface unit 631. The acquired operation parameters are converted or expanded in the form of calculation parameters of the user data CH synchronous detection RAKE processing unit 633, the user data determination processing unit 634, and the data distribution processing unit 635 by the reception frame unit processing control unit 632. .

  The user data CH synchronous detection RAKE processing unit 633, the user data determination processing unit 634, and the data distribution processing unit 635 receive the received data (user data CH) acquired from the reception data buffer 76 via the calculation parameter and the reception data interface unit 639. Each process is performed using.

  The reception data processed by the user data CH synchronous detection RAKE processing unit 633, the user data determination processing unit 634, and the data distribution processing unit 635 is output to the reception data buffer 76 via the reception data interface unit 639, and the calculation completion result The activation information for the reception decoding processing function unit 64 is output to the channel control data buffer 72 via the control data interface unit 631.

  When receiving the processing resource, the reception decoding processing function unit 64 acquires activation information from the received frame unit user data processing function unit 63 via the control data interface unit 641. When the activation information is acquired, the operation parameter is acquired via the control data interface unit 641. The acquired operation parameter is converted or expanded into a calculation parameter form of the data decoding processing unit 643 and the data decoding processing unit 644 by the reception decoding processing control unit 642.

The data decoding processing unit 643 and the data decoding processing unit 644 use the calculation parameters and the received data (user data CH) acquired from the received data buffer 76 via the received data interface unit 649, and the data decoding processing unit 643 and 644 are performed.
The reception data processed by the data decoding processing units 643 and 644 is output to the upper layer reception data interface buffer 75 via the reception data interface unit 649, and the calculation result is channel controlled via the control data interface unit 641. The data is output to the data buffer 72.
After that, although not shown, the upper layer received data interface function unit acquires the data stored in the upper layer received data interface buffer 75 and performs higher processing.

[Resource allocation method]
Next, a processing resource allocation method for each functional unit of the baseband will be described with reference to FIGS. FIG. 16 is a time chart showing the concept of processing resource allocation for each functional unit, and FIG. 17 is a diagram showing the priority for each functional unit.
As shown in FIG. 17, the priority of the processing of each functional unit of the baseband is determined by the processing start cycle and the processing data unit, and the priority “1” is the highest priority, “5” has the lowest priority.

As shown in FIG. 16, in the configuration of the first base station, processing resources are not allocated to a single call, but processing resources are allocated to functional units.
In addition, each functional unit is configured by a process having the same processing start cycle or processing data unit, and the functional unit is configured by collecting the same processes distributed in a plurality of calls.
When the configuration of the first base station is used, in order to efficiently perform the processing by the general-purpose processor, the compatibility with the method of storing and storing the same processing in a lump and processing in a batch is good.

Further, the processing of each functional unit can be executed when the execution condition specific to the functional unit is established and the activation information can be acquired. However, when processing overlaps, processing resources are allocated in priority to processing with higher priority, or when other execution conditions for processing with higher priority are satisfied, resource allocation is transferred to processing with higher priority. Like that.
Further, for example, when processes having the same priority are overlapped, it is possible to allocate processing resources by a round robin method.

According to the first base station, it is possible to provide a radio base station that can contribute to improvement in processing efficiency and relaxation of processing load concentration.
That is, there is an effect that it is possible to contribute to the improvement of processing efficiency by collecting the same processing distributed over a plurality of calls as a function and processing them collectively. In addition, it is possible to assign processing resources according to priority by grouping each functional unit in the same activation cycle or in the same processing data unit and assigning priorities, thereby contributing to the reduction of load concentration. is there.

[Second Embodiment]
Next, a radio base station (second base station) according to another embodiment of the present invention will be described with reference to FIG. FIG. 18 is a schematic configuration block diagram of a radio base station according to another embodiment.
As shown in FIG. 18, the second base station includes a process execution information acquisition unit 1501-1, -2, a control data interface unit 1502-1, -2, a control determination unit 1503-1, -2, User data interface units 1504-1, -2, processing operation units 1505-1, -2, processing execution information output units 1506-1, -2, maintenance monitoring units 1507-1, -2, maintenance monitoring data Interface unit 1508-1, -2, execution information group storage unit 1601, control data group storage unit 1602, user data group storage unit 1603, maintenance monitoring data group storage unit 1604, upper layer control data group storage unit 1605 and an upper layer user data group storage unit 1606.

[Parts of the second base station]
The process execution information acquisition units 1501-1 and -2 are parts that acquire execution information for executing the function, that is, identification information of a process passed between the functions.
The control data interface units 1502-1 and -2 interface control data necessary for executing the function, and the control state of the own function determined at the time of execution of processing by the control determination units 1503-1 and -2, or the control It is a part for interfacing data.

The control determination units 1503-1 and -2 autonomously determine the control state of the function at the time of processing execution using the control data acquired via the control data interface units 1502-1 and -2, and the result Is set in the processing arithmetic units 1505-1 and -2 as parameters.
The user data interface units 1504-1 and -2 are parts for interfacing data processed in its own function.

The processing calculation units 1505-1 and -2 perform actual processing or calculation using the user data acquired via the user data interface units 1504-1 and -2 and the parameters from the control determination units 1503-1 and -2. It is a part.
The process execution information output units 1506-1 and -2 are sections for receiving execution results such as identification information of a process to be transferred to the function of the next process or the other function in response to the result of each process in the own function. .

The maintenance monitoring units 1507-1 and -2 are units for monitoring the execution status of each unit in the own function.
The maintenance monitoring data interface units 1508-1 and -2 are parts for outputting maintenance monitoring results.

  The execution information group storage unit 1601 receives the process execution information necessary for each function in the system, that is, a process that is passed to the function of the next process or another function in response to the result of each process in the own function. This is a part in which identification information and the like are stored.

The control data group storage unit 1602 is a part in which control information necessary for each function in the system is stored.
The user data group storage unit 1603 is a part in which user data to be processed necessary for each function in the system is stored.

The maintenance monitoring data group storage unit 1604 is a part that stores maintenance monitoring data output by each function in the system.
The upper layer control data group storage unit 1605 is a part that stores control data for the baseband transmission / reception function and the upper layer.
The upper layer user data group storage unit 1606 is a part that stores user data for the baseband transmission / reception function and the upper layer.

[Operation of second base station]
Next, the operation of the second base station will be described with reference to FIG.
One feature of the base station shown in FIG. 18 is that a plurality of functions required in a certain system are extracted based on the unit of data to be processed, the processing cycle, and the processing content, and each extracted function is defined as a “function”. In order to realize the “function” with software, the control, interface, calculation, and the like necessary for realizing the function are divided into respective parts.

  The function is activated periodically. As for the activated function, first, the process execution information acquisition units 1501-1 and -2 operate, and process execution information necessary for each function in the system, that is, other function, or identification information of a process delivered from the previous process, etc. Is received from the execution information group storage unit 1601.

  Here, the identification information is whether there is actual data to be processed by this activation, where it exists (physical location), and at what timing (time stamp) the data to be processed It is information about whether it is data.

The control determination unit 1503-1, -2 analyzes the process execution information, and if there is actual data, the control determination unit 1503-1, -2 instructs the execution information through the control data interface unit 1502-1, -2 based on the identification information. The processing content requested at the given timing is acquired from the control data group storage unit 1602 as control data.
When the function to be realized has an interface with an upper layer in the system configuration, control data is also acquired from the upper layer control data group storage unit 1605.

Further, the control determination units 1503-1 and -2 autonomously determine and update the control state of the own function at the time of executing the process in order to perform the requested process based on the acquired control data.
Further, the processing calculation units 1505-1 and -2 use the control parameters specified by the control determination units 1503-1 and -2, and the user data group storage units via the user data interface units 1504-1 and -2. Data to be processed (calculated) is acquired from 1603, actual processing is performed, and the processed data is output to the user data group storage unit 1603 via the user data interface units 1504-1 and -2.
When the function to be realized has an interface with an upper layer in the system configuration, user data is input / output from the upper layer user data group storage unit 1606.

  In addition, the processing calculation units 1505-1 and -2 return processing results to the control determination units 1503-1 and -2. The control determination units 1503-1 and -2 receive the processing results from the processing arithmetic units 1505-1 and -2, and output execution information such as identification information of processing to be transferred to the function of the next process or another function. The control data group storage unit 1602 outputs the control state of the own function after the processing, the control data, the control result, and the like via the control data interface units 1502-1 and -2. Publish to

Here, the proper use of the control data group and the execution information group will be described.
For example, the execution information group is particularly effective for an interface between functions having different activation cycles in a one-to-one interface between a certain function unit and a certain function unit.
The function of the previous process can be realized by accumulating execution information to be delivered after execution in a data structure like a queue and acquiring the function of the next process from the queue data.

The control data group is effective when a functional unit and a plurality of functional units interface. For example, when a processing result of a certain function can be a control input to a plurality of other functions, an interface based on a control data group is used.
Based on the data stored in the control data group storage unit 1602, for example, in the case of a radio base station, it can be considered that the attributes of the call connected to the base station are disclosed.
Also, the maintenance monitoring units 1507-1 and -2 monitor whether or not each process within the own function has performed processing normally. If an abnormality is detected, the maintenance monitoring data interface The data is output to the outside via the sections 1508-1 and -2.

Next, a method for realizing a dynamic interface between activations in the second base station will be described with reference to FIG. FIG. 19 is a diagram illustrating a dynamic relationship between functional units according to the second base station.
The feature of the second base station is that a plurality of functions required in a certain system are extracted based on the unit of data to be processed, the period of processing, and the contents of the processing. In order to operate, functions that activate each function in the same cycle and those that have the same processing priority are collected as a function group.

  Cycle A priority high processing function group 801, Cycle A priority low processing function group 802, Cycle B priority high processing function group 803, Cycle B priority medium processing function group 804, Cycle B priority low processing function in FIG. A group 805 indicates a function group that is a set of functions divided by the period and priority.

One function in FIG. 18 is the same as “function unit #xxx” in FIG.
It is the functional unit process activation manager that gives processing resources 701 to the functional group which is an aggregate of the functional units. By giving an activation trigger to the function group 701, all the functions in the system can be operated as one of the function groups.

[Application example of second base station]
Next, application examples of the second base station will be described with reference to FIGS. 20 is a configuration block diagram showing an example of application of the second base station to a base station, FIG. 21 is a diagram showing a transmission coding processing function group, and FIG. 22 is a transmission frame unit processing function group. FIG. 23 is a diagram showing a power control system function group, FIG. 24 is a diagram showing a transmission spreading system function group, and FIG. 25 is a reception chip synchronization despreading system function group. 26 is a diagram showing a radio section control data demodulation processing function group, FIG. 27 is a diagram showing a radio section control data determination processing function group, and FIG. 28 is a received frame unit user data process. FIG. 29 is a diagram illustrating a function group, FIG. 29 is a diagram illustrating a reception decoding processing function group, and FIG. 30 is a diagram illustrating a baseband channel control processing function group.

  20 to 30 includes a transmission encoding processing function group 1001, a transmission frame unit processing function group 1002, a power control system function group 1003, a transmission spreading system function group 1004, and a reception chip synchronization inverse. Spreading system function group 1005, radio section control data demodulation processing function group 1006, radio section control data determination processing function group 1007, received frame unit user data processing function group 1008, reception decoding processing function group 1009, base Band channel control processing function group 1010, execution information group 1101, control data group 1102, user data group 1103-1, -2, maintenance / monitoring data group 1104, upper layer control data group 1105, upper layer User data groups 1106-1 and -2 and a function unit process activation control manager 901 are included.

[Each part of application example in second base station]
The execution information groups 1101-1 to 110-1 are for interfacing data for passing processing between functions.
The control data group 1102 is for operating parameters and report information between the baseband channel control processing function group 1010 and the baseband transmission / reception function, and a channel control data interface between the baseband transmission / reception functions.
User data groups 1103-1 and -2 are used to interface transmission / reception data between baseband transmission / reception functions.

The maintenance / monitoring data group 1104 is used to interface data for outputting a monitoring result of the execution state of the function.
The upper layer control data group 1105 is for interfacing call setup control information from the upper layer to the baseband unit and report information from the baseband unit to the upper layer.
Upper layer user data groups 1106-1 and -2 are used for an interface for transmitting and receiving user data with an upper layer.

  The baseband channel control processing function group 1010 performs a call admission control function, a call response control function for a call setting from a higher-level function of the baseband transmission / reception unit, and an operation parameter setting for each functional unit of the baseband transmission / reception unit. A transmission / reception function unit operation parameter setting control function to be performed, a report data acquisition control function to acquire report data from each function, and report to a higher level, etc. are implemented.

The transmission encoding function group 1001 is provided with a data encoding function for encoding each call control data and communication data for a plurality of calls.
The transmission frame unit processing function group 1002 includes a data multiplexing function that multiplexes and encodes call control data and communication data in units of radio data frames for each call, and mapping processing corresponding to a physical channel. A modulation processing function or the like for performing is implemented.

  The power control function group 1003 includes a power setting status control function for controlling a condition (power setting status) for determining each transmission power for a plurality of calls, and a TPC command to be inserted for each of the plurality of calls. A TPC insertion status control function and the like for controlling conditions for determination (TPC insertion status) are implemented.

  The transmission spreading system function group 1004 includes a spreading processing function for performing spreading processing for a plurality of calls, a power determination processing function for performing power determination processing, a power setting processing function for performing power setting processing, and channel multiplexing processing for a plurality of calls. A CH multiplex processing function for performing is implemented.

  The reception chip synchronization despreading system function group 1005 includes a path search processing function for performing path search processing for extracting each path for a plurality of calls, a control CH despreading processing function for performing despreading processing, and user data CH. A despreading function and the like are implemented.

  The radio section control data demodulation processing function group 1006 includes an SIR measurement processing function that performs SIR measurement processing for each radio section control data for a plurality of calls, an insertion TPC determination processing function that performs insertion TPC determination processing, and a radio A control CH synchronous detection RAKE processing function for performing synchronous detection RAKE processing of section control data is implemented.

  The wireless section control data determination processing function group 1007 is a wireless section control data determination processing function that performs determination processing for each wireless section control data for a plurality of calls, and reception user data that performs reception user data type determination processing. A type determination processing function and the like are implemented.

  The received frame unit user data processing function group 1008 includes a user data synchronous detection RAKE processing function for performing user data synchronous detection RAKE processing in units of radio data frames for a plurality of calls, and user data for performing user data determination processing. A determination processing function, a data separation processing function for separating the call control data and communication data, and the like are mounted.

The reception decoding processing function group 1009 is provided with a data decoding processing function for performing decoding processing of each call control data and communication data for a plurality of calls.
The functional unit process activation control manager 901 provides activation triggers for functions grouped according to the periodicity and priority of each function.

[Operation of second base station]
Next, the operation of the second base station shown in FIGS. 20 to 30 will be described.
An upper layer such as a call control unit places control data in the upper layer control data group 1105 and the fact that “control data is placed in the upper layer control data group” in the execution information group 1101 with respect to the baseband unit. Here, for example, the control data from the upper layer includes call setting information including control parameters at the time of call setting, call release information at the time of call release, and the like.

When activated, the call admission control function confirms execution information, and performs call admission control for the call when there is control to be accepted such as call setting information.
When the transmission / reception function unit operation parameter setting control function is activated in response to processing by the call admission control function, the transmission / reception function unit operation parameter setting control function acquires the control parameter and sets the operation parameter for each function of the baseband transmission / reception unit. The control data is created and placed in the control data group 1102.

When the call response control function is activated to notify the upper layer that the call has been received after receiving the processing by the transmission / reception function unit operation parameter setting control function, the call response control for the call is performed, and the upper layer control data Response information is placed in the group 1105.
The control data group 1102 also stores report data from each functional unit of the baseband transmission / reception unit. When the report data acquisition control function is activated, it acquires report data from the control data group 1102, creates report data for the upper layer, and places it in the upper layer control data group 1105 as report data.

  Data placed in the control data group 1102 includes baseband channel control unit setting information, baseband channel control report information, channel control interface information between baseband transmission / reception function units, and the like.

The baseband channel control unit setting information is an operation parameter set for each transmission / reception function created by the transmission / reception function unit operation parameter setting control function.
The baseband channel control report information is a result of transmission / reception processing performed by each transmission / reception function. For example, the baseband channel control report information is information on which content to be reported to an upper layer such as a transmission / reception processing completion notification and a quality measurement result.

  The baseband transmission / reception function unit channel control interface information is information for notifying the function of the next process or other functions about the signal processing result unique to each function unit and the signal processing state in each function unit. . For example, information on determination TPC and insertion TPC in transmission power control can be handled as the interface information. Also, synchronization information indicating whether or not the call is wirelessly synchronized can be handled as the interface information.

  The data placed in the execution information group 1101 gives information on processing execution for the function of the next process. As a result of processing of a certain function, it is notified through the execution information group 1101 that the next process can be executed, and in the function of the next process, the execution information group 1101 is confirmed every time the function is activated, and execution is possible. If it can be confirmed, it will process its own function.

Each function of the baseband transmission / reception unit is provided with processing resources for its own function, that is, when an activation trigger is given from the functional unit process activation manager 901, execution information and control data necessary for processing one or more calls Is acquired autonomously from the execution information group 1101 or the control data group 1102 and performs transmission / reception processing.
In addition, since the specific processing implemented in each transmission / reception function is the same as that of the conventional technology, detailed description will be omitted below.

Next, a method for allocating processing resources to each functional unit of the baseband when the base station application examples shown in FIGS. 20 to 30 are used will be described with reference to FIG. FIG. 31 is a time chart showing the concept of processing resource allocation to each functional unit in the second base station.
As shown in FIG. 31, in the processing of each function of the baseband, the priority is determined by the processing start cycle and the processing data unit, and the functions having the same priority are collected as a function group.
In addition, FIG. 32 shows a process activation cycle / process data unit and priority in the function unit. FIG. 32 is a diagram illustrating a process activation cycle / process data unit and priority for a functional unit in the second base station. The priority is “1” being the highest and “6” being the lowest.

In the configuration of the second base station, processing resources are not allocated to a single call, but processing resources are allocated to functional groups.
Each function group is composed of processes having the same process activation cycle or process data unit, and the function group is composed of the same processes dispersed in a plurality of calls.
When the configuration of the second base station is used, in order to efficiently perform the processing by the general-purpose processor, the compatibility with the method of storing and storing the same processing in a lump and processing in a batch is good.

The processing of each functional unit can be executed when an execution condition unique to the functional unit is established. For example, when execution information can be acquired. However, when processing overlaps, processing resources are allocated in priority to processing with higher priority, or when other execution conditions for processing with higher priority are satisfied, resource allocation is transferred to processing with higher priority. Like that.
Further, for example, when processes having the same priority are overlapped, it is possible to allocate processing resources by a round robin method.

  According to the second base station, each function implemented in a function group has the same processing unit, processing cycle, processing priority, etc. for each function group, and each function group has a processing cycle for each function group. Depending on the priority, a start trigger is given from the functional unit process start manager 901 to operate.

  In addition, according to the second base station, each function acquires autonomously necessary execution information, control data, and user data, and determines a state necessary for execution in the operation for each activation. The process or calculation is performed, and the execution data for the process, the user data after the calculation, the control data as the state after the control, the next process, etc. is developed.

As described above, according to the second base station, it is possible to provide a radio base station that can contribute to improvement of processing efficiency and relaxation of processing load concentration.
That is, there is an effect that it is possible to contribute to the improvement of processing efficiency by collecting the same processing distributed over a plurality of calls as a function and processing them collectively. In addition, it is possible to assign processing resources according to priority by grouping each functional unit in the same activation cycle or in the same processing data unit and assigning priorities, thereby contributing to the reduction of load concentration. is there.
In addition, since the configuration for realizing the functions can be abstracted and generalized, the dependency on the hardware architecture is small, and the change can be flexibly handled.

  The present invention can contribute to improving processing efficiency and reducing the concentration of processing load when implementing baseband transmission / reception processing by software using a general-purpose processor, and can easily cope with changes in the hardware platform architecture. It is suitable for a radio base station having a simple software architecture.

It is a schematic block diagram of a radio base station according to an embodiment of the present invention. 3 is a schematic configuration diagram of a baseband channel control function unit 41. FIG. It is a structure schematic diagram of a transmission encoding function part. It is the structure schematic of a transmission frame unit processing function part. It is a structure schematic diagram of a transmission spreading | diffusion system function part. It is the structure schematic of a reception chip synchronous de-spreading system function part. It is a block schematic diagram of a radio area control data processing function part. It is a structure schematic diagram of a received frame unit user data processing function part. It is a schematic block diagram of a reception decoding process function part. It is a schematic block diagram of an electric power control system function part. It is a figure which shows a channel control data buffer structure. It is a figure which shows the operation example of an electric power setting status control part. It is a figure which shows the operation example of a TPC insertion status control part. It is a figure which shows the conditions for transmission power determination. It is a figure which shows the conditions for insertion TPC determination. It is a time chart which shows the concept of processing resource allocation with respect to each function part. It is a figure which shows the priority with respect to each function part. It is a schematic block diagram of the radio base station which concerns on another embodiment. It is a figure which shows the dynamic relationship between the function parts which concern on a 2nd base station. It is a block diagram showing a configuration example of a second base station applied to a base station. It is a figure which shows a transmission encoding process function group. It is a figure which shows a transmission frame unit processing function group. It is a figure which shows an electric power control system function group. It is a figure which shows a transmission spreading | diffusion system function group. It is a figure which shows a reception chip synchronous de-spreading system function group. It is a figure which shows a radio area control data demodulation processing function group. It is a figure which shows a radio area control data determination processing function group. It is a figure which shows a received frame unit user data processing function group. It is a figure which shows a reception decoding process function group. It is a figure which shows a baseband channel control processing function group. It is a time chart which shows the allocation concept of the processing resource with respect to each function part in a 2nd base station. It is a figure which shows the process starting period / process data unit with respect to the function part in a 2nd base station, and a priority. It is a block diagram of the configuration of a conventional radio base station apparatus. It is a figure which shows the case where a process is enough in the transmission timing for every call, and the processing timing for every call. It is a figure which shows the case where a process is not in time in the transmission timing for every call, and the processing timing for every call.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11, 12, 13 ... Baseband transmission / reception part, 21 ... CH multiplexing part, 31 ... Baseband channel control part, 41 ... Baseband channel control function part, 42 ... Power control function part, 52 ... Transmission encoding function part, 53 ... transmission frame unit processing function part, 54 ... transmission spread system function part, 61 ... reception chip synchronization despreading system function part, 62 ... radio section control data processing function part, 63 ... reception frame unit user data processing function part, 64 ... Reception decoding processing function unit, 71 ... upper layer control data interface buffer, 72 ... channel control data buffer, 73 ... upper layer transmission data interface buffer, 74 ... transmission data buffer, 75 ... upper layer reception data interface buffer, 76 ... reception Data buffer, 101... Data encoding unit, DESCRIPTION OF SYMBOLS 102 ... Data multiplexing part 103 ... Physical channel mapping part 104 ... Modulation part 105 ... Spreading part 106 ... Power control part 107 ... Power setting part 151, 152 ... Functional part 201 ... Path search part 202 DESCRIPTION OF SYMBOLS ... De-spreading part, 203 ... SIR measurement part, 204 ... Insertion TPC generation part, 205 ... Synchronous detection RAKE part, 206 ... Control data determination part, 207 ... User data determination part, 208 ... Reception user data type determination part, 209 ... Data separation unit, 210 ... Data decoding unit, 411 ... Control data interface unit, 412 ... Call admission control unit, 413 ... Call response control unit, 414 ... Transmission / reception function unit Operation parameter setting control unit, 415 ... Report data acquisition control unit 421: Control data interface unit 422: Power setting status control unit 4 23 ... TPC insertion status control unit, 523, 524 ... transmission coding unit, 522 ... transmission coding processing control unit, 521 ... control data interface unit, 529 ... transmission data interface unit, 531 ... control data interface unit, 532 ... transmission Frame unit processing control unit, 533 ... modulation processing unit, 534 ... data multiplexing processing unit, 535 ... physical CH mapping processing unit, 539 ... transmission data interface unit, 541 ... control data interface unit, 542 ... transmission spreading system control unit, 543 ... Power setting processing unit, 544 ... Spreading processing unit, 545 ... Power determination processing, 546 ... CH multiplexing processing unit, 549 ... Transmission data interface unit, 611 ... Control data interface unit, 612 ... Reception chip synchronous despreading system control Part 613 ... path search Processing unit, 614 ... Control CH despreading processing unit, 615 ... User data CH despreading processing unit, 619 ... Received data interface unit, 621 ... Control data interface unit, 622 ... Radio section control data processing control unit, 623 ... SIR measurement Processing unit 624 ... Insertion TPC determination processing unit 625 ... Control CH synchronous detection RAKE processing unit 626 ... Control data determination processing unit 627 ... Reception user data type determination processing unit 629 ... Reception data interface unit 631 ... Control data Interface unit 632 ... Received frame unit processing control unit 633 ... User data CH synchronous detection RAKE processing unit 634 ... User data determination processing unit 635 ... Data distribution processing unit 639 ... Received data interface unit 641 ... Control data interface Part 6 2 ... reception decoding processing control unit, 643, 644 ... data decoding processing unit, 649 ... reception data interface unit, 901 ... functional unit process activation control manager, 1001 ... transmission encoding processing function group, 1002 ... transmission frame unit processing Function group, 1003 ... Power control system function group, 1004 ... Transmission spread system function group, 1005 ... Reception chip synchronous despread system function group, 1006 ... Radio section control data demodulation processing function group, 1007 ... Radio section control data judgment processing function Group: 1008: reception frame unit user data processing function group, 1009: reception decoding processing function group, 1010: baseband channel control processing function group, 1101: execution information group, 1102: control data group, 1103: user data group, 1104: Maintenance / monitoring data group, 1105: Upper layer Control data group, 1106 ... upper layer user data group, 1501 ... process execution information acquisition unit, 1502 ... control data I / F unit, 1503 ... control / determination unit, 1504 ... user data I / F unit, 1505 ... process (calculation) ) Part 1506 ... processing execution information output part 1507 ... maintenance / monitoring part 1508 ... maintenance / monitoring data I / F part 1601 ... execution information group storage part 1602 ... control data group storage part 1603 ... user data group Storage unit 1604 ... Maintenance / monitoring data group storage unit 1605 ... Upper layer control data group storage unit 1606 ... Upper example other user data group storage unit

Claims (3)

In a radio base station apparatus that implements baseband transmission / reception processing by software using a general-purpose processor,
A transmission encoding processing function unit that performs encoding for each call control data and communication data for a plurality of calls, and
A transmission frame unit processing function unit that performs multiplexing processing, encoding processing, mapping processing for physical channels, modulation processing of call control data and communication data in units of radio data frames of each call for a plurality of calls,
A power control function unit that controls conditions for determining each transmission power for a plurality of calls and controls conditions for determining each inserted TPC command for a plurality of calls;
A transmission spreading system function unit for performing spreading processing, power determination processing, power setting processing, and channel multiplexing processing of a plurality of calls for a plurality of calls,
A reception chip synchronous despreading system function unit for performing path search processing and despreading processing for path extraction for a plurality of calls;
For a plurality of calls, SIR measurement processing, insertion TPC determination processing, radio zone control data synchronous detection RAKE processing, radio zone control data determination processing, and received user data type determination processing are performed on each radio zone control data. A wireless section control data processing function unit;
A reception frame unit user data processing function unit for performing synchronous detection RAKE processing of user data in units of radio data frames, user data determination processing, and call control data and communication data separation processing for a plurality of calls;
Receiving decoding processing function unit for decoding each call control data and communication data for a plurality of calls,
Performs baseband transmission / reception processing, performs call admission control, call response control for the call setting from the higher-order function unit of each function unit, sets operation parameters for each function unit, and reports data from each function unit And a baseband channel control unit that reports to the upper level,
A radio base station apparatus characterized in that the activation period and the processing data unit of each process in each functional unit are the same, and the processing priority is set for each functional unit. In a radio base station apparatus that implements baseband transmission / reception processing by software using a general-purpose processor,
Execution information for executing a function of baseband transmission / reception processing, an execution information acquisition unit for acquiring identification information of processing passed between the functions,
A control data interface unit that interfaces the control data necessary to execute the function and interfaces the control state and control data of the own function;
Using the control data acquired via the control data interface unit, a control determination unit that determines the control state of the own function at the time of processing execution, and sets the result as a parameter;
A user data interface for interfacing user data;
A processing operation unit that performs actual processing or operation using user data acquired via the user data interface unit and parameters from the control determination unit;
In response to the result of each process in the function, a process execution information output unit that outputs execution information to be passed to the function of the next process or another function;
A maintenance monitoring unit for monitoring the execution status of each unit;
A maintenance monitoring data interface that outputs maintenance monitoring results;
It is divided into a plurality of function groups according to the unit of data to be controlled or processed by the above function, the period to be controlled or processed, the priority to be controlled or processed, or the event to be controlled or processed.
A radio base station apparatus comprising a function unit processing activation manager that provides a processing trigger, a priority, and an activation trigger for each event for a plurality of function groups that are separately mounted.   The radio base according to claim 1 or 2, wherein processing resources are preferentially assigned to high priority processing, and processing resources are assigned in a round-robin manner when processing having the same priority overlaps. Station equipment.

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