JP2004260422A - Receiver - Google Patents

Abstract

To enable normal reception of a multicast signal or a broadcast signal without being affected by the state of superframe synchronization, the state of a communication line, and the like.
A high-frequency signal received by an antenna is processed by a high-frequency signal processing unit, converted into a digital signal by an A / D converter, demodulated by a demodulation unit, and stored in a reception buffer. The map control unit 108 determines whether the received data is a multicast signal, and stores the received position management information indicating the frame position of the received data addressed to the own device in the reception map unit 109 if the received data is a multicast signal. If not, do nothing. These processes are performed for the number of frames corresponding to the maximum storage capacity of the reception map unit 109 to complete the reception map. After the reception map is completed, a multicast signal reception process is performed based on the reception position management information stored in the reception map unit 109.
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a receiving apparatus that receives a broadcast (broadcast) signal transmitted to an unspecified number of terminals and a broadcast type data by a broadcast signal in a mobile communication system, for example.
[0002]
[Prior art]
Conventionally, as a method of receiving broadcast-type data such as a multicast signal or a broadcast signal transmitted to an unspecified number of terminals, a transmitting side transmits a multicast signal or a broadcast signal at regular intervals according to a superframe or multiframe period. However, on the receiving side, there is a method in which after obtaining frame synchronization with the transmitting side, superframe synchronization is further established, and data is received by finding the cycle of a multicast signal or a broadcast signal (for example, see Non-Patent Document 1). ).
[0003]
Further, there is a method in which information on how many frames the next signal is transmitted after is added to a multicast signal or a broadcast signal in advance, and the receiving side counts the frame number information and receives the next signal. .
[0004]
[Non-patent document 1]
Low power data communication system / Broadband mobile access system standardized by the Association of Radio Industries and Businesses ARIB-STD-T70, 1st edition, 6.2.2.4 Power saving
[0005]
[Problems to be solved by the invention]
However, the receiving apparatus according to the above-described conventional method has a problem that a signal cannot be received if superframe synchronization is lost.
[0006]
In addition, since the transmitting side needs to add a bit indicating the number of frames to the multicast signal or the broadcast signal to be transmitted, there is a problem that the data bits provided to the user are reduced accordingly.
[0007]
Furthermore, when a multicast signal or a broadcast signal including frame number information cannot be received due to deterioration of a communication line, there is a problem that subsequent reception becomes impossible.
[0008]
The present invention has been made in order to solve the above-mentioned problems, and a receiving apparatus capable of normally receiving a multicast signal or a broadcast signal without being affected by a superframe synchronization state, a communication line state, and the like. The purpose is to provide.
[0009]
Another object of the present invention is to provide a receiving apparatus which does not require adding bits such as frame number information in a multicast signal or a broadcast signal and can allocate a large amount of user data.
[0010]
[Means for Solving the Problems]
A receiving apparatus according to the present invention is a receiving apparatus for receiving broadcast-type data, comprising: a high-frequency signal processing means for converting a received high-frequency signal into a baseband signal; and a digital conversion means for converting the baseband signal into a digital signal. Means for controlling synchronization holding of communication based on the reception signal of the digital signal, and synchronizing holding means for outputting synchronization holding information, and controlling each unit of the apparatus based on the synchronization holding information output from the synchronization holding means. Control means for generating various timing signals for performing the processing, demodulation means for performing demodulation processing of the reception signal based on the timing signal output from the timing control means to obtain reception data, and a self-device from the reception data. A map for controlling the generation of a reception map of the detected reception data while detecting the reception data addressed to the And control means, in which and a reception map means for storing the received location management information indicating a frame position of the received data based on the detected information of the received data.
[0011]
According to the configuration described above, data can be received without being aware of superframe synchronization with respect to the transmission cycle of a broadcast-type data signal transmitted from a communication partner. Also, since the frame position of the received data addressed to the own device is stored, it is not necessary to add bits such as frame number information in a broadcast type data signal such as a multicast signal or a broadcast signal. Of user data can be allocated.
[0012]
Further, the receiving apparatus according to the present invention is configured such that the receiving map means includes a storing means having a storage capacity capable of including a maximum cycle of received data in a signal addressed to the own apparatus having a predetermined cycle transmitted from a communication partner. Including those that are done.
[0013]
According to the above configuration, it is possible to receive data not only for the range of the superframe period but also for the transmission period within the period covered by the storage capacity of the reception map unit.
[0014]
Further, the receiving apparatus according to the present invention includes a receiving apparatus in which the map control means updates the reception position management information in the reception map means autonomously at a predetermined cycle.
[0015]
According to the above configuration, since the frame position of the reception data addressed to the own device is stored while being updated at a predetermined cycle as the reception position management information, it is possible to avoid the influence of the line abnormality upon data reception.
[0016]
Further, in the receiving device according to the present invention, the map control means updates the reception position management information in the reception map means according to an instruction from a software program operating on a processor provided in the own device or another device. including.
[0017]
According to the above configuration, since the frame position of the reception data addressed to the own device is stored while being updated based on the instruction of the software program as the reception position management information, it is possible to avoid the influence of the line abnormality upon data reception. .
[0018]
Further, in the receiving device according to the present invention, when the map control means updates the reception position management information, the map control means clears all the reception position management information stored immediately before and reproduces the new reception position management information. Including those that perform
[0019]
With the above configuration, by regenerating the new reception position management information, unnecessary reception position management information is deleted, and new reception position management information relating to broadcast-type data such as a multicast signal or a broadcast signal is transmitted. It becomes possible to add.
[0020]
Further, in the receiving apparatus according to the present invention, when the map control means updates the reception position management information, the map control means performs generation of new reception position management information over the previously stored reception position management information. Including things.
[0021]
With the above configuration, by overwriting and generating new reception position management information, unnecessary reception position management information is deleted, and new reception position management information relating to broadcast-type data such as a multicast signal or a broadcast signal is added. It is possible to do.
[0022]
In addition, the receiving device according to the present invention, when the reception map means generates the reception position management information, as a result of receiving the reception data addressed to the own device in the fixed cycle N times, at least once or more times. When the received data is detected, the information is stored as reception position management information.
[0023]
With the above configuration, even in an area where the state of the communication line is poor, it is possible to reliably obtain the reception position management information by increasing the number of receptions.
[0024]
Further, in the receiving device according to the present invention, the reception map means may determine the number of reception processes performed N times in the generation of the reception position management information by an instruction from a software program running on a processor provided in the own device or another device. Including those that can be changed.
[0025]
With the above configuration, the reliability of the reception position management information can be improved by controlling the number of receptions based on the instruction of the software program even in an area where the state of the communication line is poor.
[0026]
Also, in the receiving device according to the present invention, the reception map means may determine the number of times of detection of the reception data detected by N times of reception in the generation of the reception position management information in a processor provided in the own device or another device. Includes those that can be changed by instructions from operating software programs.
[0027]
With the above configuration, the reliability of the reception position management information can be improved by controlling the number of times of detection of the reception data based on the instruction of the software program even in an area where the state of the communication line is poor.
[0028]
The present invention also provides a communication terminal device provided with any one of the receiving devices described above.
[0029]
With this communication terminal device, it is possible to stably receive broadcast-type data such as a multicast signal and a broadcast signal, and to reliably acquire data addressed to the own terminal.
[0030]
Further, the present invention provides a base station apparatus for performing communication relating to broadcast-type data with the communication terminal apparatus.
[0031]
With this base station device, it is possible to perform highly reliable communication with a communication terminal device in communication of broadcast-type data such as a multicast signal and a broadcast signal.
[0032]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, for example, in a mobile communication system, the present invention is applied to a receiving device such as a mobile communication device that receives a multicast signal or a broadcast signal transmitted from a transmitting-side mobile communication network and an unspecified number of terminals from a base station device. The configuration and operation will be described taking the case as an example.
[0033]
(1st Embodiment)
FIG. 1 is a block diagram illustrating a configuration of a receiving device according to an embodiment of the present invention. The receiving apparatus according to the present embodiment includes an antenna 101 for receiving a radio signal, and a high-frequency signal processing unit (RF unit) that performs signal processing in a high-frequency band and frequency conversion to a baseband frequency of a signal received by the antenna 101. ) 102, and an A / D converter 103 that converts the received signal of the baseband frequency output from the high-frequency signal processing unit 102 into a digital signal.
[0034]
Also, a synchronization holding unit 104 that controls communication synchronization holding based on a received digital signal output from the A / D converter 103, and various timings in the apparatus based on synchronization holding information from the synchronization holding unit 104. A timing control unit 105 for generating a signal and a demodulation unit 106 for demodulating received data based on a received signal from the A / D converter 103 and a timing signal from the timing control unit 105 are provided.
[0035]
A reception buffer 107 for storing demodulated reception data; a map control unit 108 for controlling detection of reception data addressed to the own device from the demodulated reception data and generation of a reception map of the reception data; And a reception map unit 109 for managing a reception position based on the reception data information detected by the control unit.
[0036]
Next, the operation of the receiving device of the present embodiment will be described. The antenna 101 receives a radio signal transmitted from a communication partner, performs high-frequency signal processing such as filtering and amplification of the received signal in the high-frequency signal processing unit 102, and converts the signal into a baseband signal having a baseband frequency. Output. The A / D converter 103 converts the received baseband signal into a digital signal, and outputs the digital signal to the synchronization holding unit 104 and the demodulation unit 106, respectively.
[0037]
The synchronization holding unit 104 detects a unique word as a synchronization detection signal from the input digital signal received signal, and generates a synchronization holding information signal indicating frame timing correction information based on timing information calculated from the detection result. It is generated and passed to the timing control unit 105. The timing control unit 105 corrects the frame timing based on the correction information from the synchronization holding unit 104, and generates and outputs various timing signals for controlling each unit of the device.
[0038]
The demodulation unit 106 performs demodulation processing on the received digital signal from the A / D converter 103 using the demodulation timing signal generated by the timing control unit 105 to obtain received data. Then, the obtained reception data is output to the reception buffer 107 and stored, and is output to the map control unit 108.
[0039]
The map control unit 108 determines whether the received data is a multicast signal (or a broadcast signal). As a result, if the received signal is a multicast signal, the reception data addressed to the own device is detected, a reception map indicating the frame position is generated, and the reception map is stored in the reception map unit 109 as reception position management information. On the other hand, if it is not a multicast signal, no processing is performed. These processes are performed for the number of frames corresponding to the maximum storage capacity of the reception map unit 109, and the reception map unit 109 completes the reception map. Thereafter, a multicast signal reception process is performed based on the reception position management information of the reception map stored in the reception map unit 109 to acquire data addressed to the own device.
[0040]
FIG. 2 is a flowchart showing an operation sequence of the map control unit 108 and the reception map unit 109 in the multicast signal reception processing according to the first embodiment of the present invention, and the operation will be described in detail below based on this.
[0041]
When the process of receiving a multicast signal (or a broadcast signal) is started, the map control unit 108 determines whether there is a multicast connection indicating a request for receiving the multicast signal (step S201). As a result, if there is a multicast connection, the number of receptions (corresponding to the number of frames) N at the time of generating the reception map is set to 0 and initialized (step S202). On the other hand, if there is no multicast connection, the process returns to step S201 to continue monitoring.
[0042]
Next, it is determined whether the number of receptions N has reached a predetermined reception number threshold (step S203). The threshold of the number of times of reception includes the maximum value of the interval of the multicast signal transmitted from the transmission side at a constant period, and is 32 in this case. If the result of the determination is that the number of receptions N has not reached the number-of-receptions threshold value 32, it is determined that the reception map is in an incomplete state, the process proceeds to step S204, and the reception map generation processing is continued. On the other hand, when the number of times of reception N has reached the number-of-times-of-reception threshold value 32, it is determined that the reception map is in a completed state, and the process proceeds to step S208, which will be described later.
[0043]
In step S204, it is determined whether a multicast signal can be detected in the frame. If no multicast signal is detected, the process jumps to step S207, adds 1 to the number of receptions N, and returns to the reception number determination process of step S203. On the other hand, when a multicast signal is detected, the reception position management information for the frame is stored in the reception map of the reception map unit 109 (step S205), and the reception processing of the multicast signal is performed (step S206).
[0044]
In step S208, when the number of receptions N has reached the number-of-receptions threshold value 32 in step S203, it is determined whether or not there is reception position management information in the frame in the reception map. As a result, when there is no reception position management information, the same processing is repeated to continuously determine the reception position management information in the next frame.
[0045]
If the reception position management information is included in the reception map, a multicast signal is detected in the frame (step S209). If no multicast signal is detected, the process returns to step S208, and the process of determining the reception position management information is performed. Do. On the other hand, when a multicast signal is detected, a process of receiving the multicast signal is performed (step S210).
[0046]
As described above, according to the first embodiment, a multicast signal is detected, a reception map indicating a frame position of reception data addressed to the own apparatus is generated and stored in the reception map unit 109. The receiving data transmitted to the own device can be received without being aware of the superframe synchronization.
[0047]
Also, since the frame position of the received data addressed to the own device is stored, bits such as frame number information indicating the position of the received data at the receiving device are added to the multicast signal transmitted from the transmitting device. This eliminates the need and allows more user data to be allocated.
[0048]
(2nd Embodiment)
FIG. 3 is a timing chart showing a reception frame, a transmission frame, and a reception map in the reception processing according to the second embodiment of the present invention. The second embodiment shows a configuration example of a reception map. In FIG. 3, a frame counter value 303 which is a value of a receiving side frame counter (free-run counter) indicating a frame timing in the receiving apparatus, a multicast received signal 302 that has received a multicast signal, and a reception map 301 stored in the reception map unit 109 , A transmission cycle 304 of the first multicast signal and a transmission cycle 305 of the second multicast signal.
[0049]
The configuration of the receiving device of the second embodiment is the same as that of the above-described first embodiment, and only the storage capacity of the reception map unit 109 in FIG. 1 is different. That is, in FIG. 3, the reception map 301 can include the maximum transmission cycle 305 when there are a plurality of different transmission cycle signals in the fixed cycle multicast reception signal 302 transmitted from the communication partner and addressed to the own apparatus. And The reception map unit 109 includes a storage unit having a storage capacity capable of storing the reception map unit 109.
[0050]
Next, the operation of the receiving device according to the second embodiment will be described. The basic operation is the same as steps S201 to S210 in the first embodiment shown in FIG. Here, a case is considered where there are two types of multicast signals transmitted from the transmitting side, MC1 and MC2, where MC1 has a transmission cycle 304 consisting of 8 frames and MC2 has a transmission cycle 305 consisting of 32 frames. In the receiving apparatus, the capacity of the frame counter (the maximum value of the frame counter value 303) and the capacity of the reception map 301 are set to be the same so that the synchronization relationship (link) is maintained, and the capacity of the reception map 301 is multicast. It is assumed that there are 32 areas, which is the maximum period of the signal (transmission period 305).
[0051]
For example, when the multicast signal MC1 is received when the frame counter value 303 is “6”, the reception map management information is stored in the area “6” in the reception map 301. On the other hand, when the multicast signal cannot be received as in the case where the frame counter value 303 is “7”, the reception position management information is not stored on the reception map 301.
[0052]
By storing the reception position management information in the corresponding area of the reception map 301 according to the above-described procedure, in the subsequent reception processing, the reception position management information in the reception map 301 is synchronized with the frame counter value 303. By referencing, it is possible to receive a multicast signal.
[0053]
As described above, according to the second embodiment, in the reception map 301 stored in the reception map unit 109, the storage capacity is provided so as to secure the capacity including the maximum value of the interval of the multicast signal. In addition, data transmitted in this transmission cycle can be received even for a transmission cycle including the capacity of the reception map.
[0054]
(Third embodiment)
FIG. 4 is a flowchart illustrating a multicast signal reception processing procedure according to the third embodiment of the present invention. The third embodiment is an example in which a multicast signal reception processing procedure is partially changed. The configuration of the receiving device is the same as that of the first embodiment.
[0055]
In the third embodiment, a determination procedure for updating the reception position management information on the reception map is added to the reception processing procedure in the first embodiment shown in FIG. In FIG. 4, the procedure in steps S401 to S410 is the same as the procedure in steps S201 to S210 in FIG. 2, and a description thereof will be omitted.
[0056]
In step S410, after receiving the multicast signal based on the reception position management information on the reception map, in step S411, in order to update the reception position management information, the number of times of receiving the multicast signal using the reception map ( It is determined whether or not (the number of frames) matches the map update cycle. Here, when the number of times of the reception operation coincides with the map update cycle, a new reception map is generated by the processing procedure of generating the reception map in steps S403 to S407 again. On the other hand, if they do not match, the reception operation is continued according to the reception position management information of the current reception map (steps S408 to S410).
[0057]
As a method of updating the reception map, there are a method of updating the map autonomously at a preset map update cycle, and a method of updating the map by explicitly giving an instruction from a software program operating in a CPU, a microcomputer, or the like.
[0058]
Thus, according to the third embodiment, by updating and storing the reception position management information on the reception map at a predetermined cycle, it is possible to avoid being affected by a line abnormality when receiving data by a multicast signal.
[0059]
(Fourth embodiment)
FIG. 5 is a flowchart illustrating a multicast signal reception processing procedure according to the fourth embodiment of the present invention. The fourth embodiment is an example in which the procedure for receiving a multicast signal is partially changed. The configuration of the receiving device is the same as that of the first embodiment.
[0060]
In the fourth embodiment, in the reception processing procedure in the first embodiment shown in FIG. 1 or the third embodiment shown in FIG. 4, the update of the reception position management information in the map control unit 108 is stored until immediately before. A procedure for clearing all the reception position management information and regenerating the management information, and a procedure for overwriting and generating without clearing the reception position management information stored immediately before are added. In FIG. 5, the procedure of steps S501 to S511 is the same as the procedure of steps S401 to S411 of FIG.
[0061]
If there is a multicast connection in step S501, as a method of storing the reception position management information on the reception map, the reception map generation mode is instructed (step S512), and the instructed operation mode is determined (step S513). , Switch processing. In this case, according to the reception map generation mode, the reception map is generated (steps S503 to S507) or the operation is stopped.
[0062]
The reception map generation mode has three states: a refresh mode (regeneration), an add-on mode (additional generation), and a stop mode. When the operation mode is determined to be the refresh mode in step S513, all the reception map information is cleared (step 514), and the reception map is regenerated in steps S503 to S507. If the mode is determined to be the add-on mode, the reception position management information on the reception map is stored as it is, and the reception map is additionally generated by adding the position management information to the reception map in steps S503 to S507. If it is determined that the mode is the stop mode, the reception map generation process is stopped.
[0063]
As described above, according to the fourth embodiment, unnecessary reception position management information can be deleted from a reception map, and new reception position management information can be added from a multicast signal or a broadcast signal.
[0064]
(Fifth embodiment)
FIG. 6 is a flowchart illustrating a multicast signal reception processing procedure according to the fifth embodiment of the present invention. The fifth embodiment is an example in which the procedure for receiving a multicast signal is partially changed. The configuration of the receiving device is the same as that of the first embodiment.
[0065]
In the fifth embodiment, in the reception processing procedure according to any one of the first to fourth embodiments, the reception count determination in the reception count determination processing can be changed. That is, as a result of receiving the signal addressed to the own device in a certain cycle N times, at least one or more received data addressed to the own device are detected and stored as reception position management information. The determination of the number of receptions in the reception processing for N times in the generation of the reception position management information can be changed by an instruction from a software program operating in a CPU, a microcomputer, or the like. In FIG. 6, the procedures of steps S601, S602, S604 to S614 are the same as the procedures of steps S501, S502, S504 to S514 in FIG.
[0066]
In step S603, by setting the determination threshold value of the number of receptions from outside by a software program or the like (here, set to Nmc), the reception map generation processing (step S603) is performed at least 32 × Nmc times the transmission cycle of the multicast signal. S604 to 607) are performed.
[0067]
As described above, according to the fifth embodiment, it is possible to change the number of receptions in the reception process when generating the reception position management information of the reception map, thereby increasing the number of receptions in an area where the communication line condition is poor. Thus, the reception position management information can be reliably obtained.
[0068]
(Sixth embodiment)
FIG. 7 is a flowchart showing a multicast signal reception processing procedure according to the sixth embodiment of the present invention. The sixth embodiment is an example in which the procedure for receiving a multicast signal is partially changed. The configuration of the receiving device is the same as that of the first embodiment.
[0069]
In the sixth embodiment, a procedure for determining the number of times of detection of received data is added to the reception processing procedure in any of the first to fifth embodiments. In other words, as a result of receiving the signal addressed to the own device in a certain cycle N times, at least one or more received data addressed to the own device are detected and stored as the reception position management information. The number of times of detection is determined by using this method. The threshold value of the number of times of detection can be changed by an instruction from a software program operating in a CPU, a microcomputer, or the like. In FIG. 7, the procedure of steps S701 to S714 is the same as the procedure of steps S601 to S614 in FIG. 6, and a description thereof will be omitted.
[0070]
In step S704, it is determined whether or not a multicast signal can be detected in the frame. If a multicast signal is detected, 1 is added to the previous detection count as the multicast signal detection count (step S715). The number of times of detection is compared with a threshold value of the number of times of detection (step S716). Here, if the number of detections matches the threshold value of the number of detections, the receiving position management information of the frame is stored in the receiving map of the receiving map unit 109 (step S705), and the receiving process of the multicast signal is performed. (Step S706). On the other hand, if the number of times of detection has not reached the threshold of the number of times of detection, the process jumps to step S706 without storing the reception position management information, and executes the reception processing of the multicast signal. The number of detections used here is a value held for each detected multicast.
[0071]
As described above, according to the sixth embodiment, the number of times of detection of a multicast signal is determined, and when the number of times of detection is equal to or more than a predetermined number of times, the reception position management information is stored in the reception map. By increasing the number of receptions, the reception position management information can be reliably obtained.
[0072]
As described above, according to the present embodiment, the following effects can be obtained.
(1) There is no need to be aware of superframe synchronization with respect to the transmission cycle of a multicast signal or a broadcast signal, and it is possible to always reliably receive received data addressed to the own device.
(2) It is possible to receive the data of the multicast signal and the broadcast signal transmitted in the transmission cycle not only for the superframe cycle but also for the transmission cycle including the storage capacity of the reception map.
[0073]
(3) By storing the frame position of the received data addressed to the own device, it is necessary to add bits such as frame number information indicating the position of the received data at the receiving device to the transmission data of the multicast signal or the broadcast signal. Instead, more user data can be allocated in the transmission data.
(4) By storing the frame position of the received data addressed to the own device, it is possible to avoid the influence of the line abnormality.
[0074]
(5) By providing a refresh mode or an add-on mode as a reception map generation mode, unnecessary reception position management information can be deleted, and new reception position management information of a multicast signal or a broadcast signal can be added. It becomes.
(6) Since the determination value of the number of times of reception can be changed, the number of times of reception can be controlled even in an area where the state of the communication line is poor, so that the reliability of the reception position management information can be improved.
(7) Since the receiving operation other than the frame having the receiving position management information can be stopped, the power consumption can be reduced.
[0075]
It should be noted that the present invention is not limited to the above-described embodiment at all, and can be implemented in various modes without departing from the gist thereof.
[0076]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a receiving apparatus that can normally receive a multicast signal or a broadcast signal without being affected by a superframe synchronization state, a communication line state, and the like. Further, it is not necessary to add a bit such as frame number information in a multicast signal or a broadcast signal, and it is possible to provide a receiving apparatus capable of allocating a large amount of user data.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a receiving apparatus according to an embodiment of the present invention.
FIG. 2 is a flowchart illustrating a multicast signal reception processing procedure according to the first embodiment of the present invention.
FIG. 3 is a timing chart showing a reception frame, a transmission frame, and a reception map in a reception process according to a second embodiment of the present invention.
FIG. 4 is a flowchart illustrating a multicast signal reception processing procedure according to a third embodiment of the present invention.
FIG. 5 is a flowchart illustrating a multicast signal reception processing procedure according to a fourth embodiment of the present invention.
FIG. 6 is a flowchart illustrating a multicast signal reception processing procedure according to a fifth embodiment of the present invention.
FIG. 7 is a flowchart illustrating a multicast signal reception processing procedure according to a sixth embodiment of the present invention.
[Explanation of symbols]
101 antenna
102 High-frequency signal processing unit (RF unit)
103 A / D converter
104 Synchronization holding unit
105 Timing control unit
106 demodulation unit
107 Receive buffer
108 Map control unit
109 Reception map section

Claims (11)

A receiving device for receiving broadcast-type data,
High-frequency signal processing means for converting the received high-frequency signal into a baseband signal,
Digital conversion means for converting the baseband signal into a digital signal;
Synchronous holding means for controlling the synchronous holding of the communication based on the received signal of the digital signal and outputting the synchronization holding information,
A timing control unit that generates various timing signals for controlling each unit of the device based on the synchronization holding information output from the synchronization holding unit;
Demodulation means for performing demodulation processing of the reception signal based on the timing signal output from the timing control means to obtain reception data,
A map control unit that detects reception data addressed to the own device from the reception data, and controls generation of a reception map of the detected reception data,
Reception map means for storing reception position management information indicating a frame position of the reception data based on the information of the detected reception data,
A receiving device comprising: 2. The receiving apparatus according to claim 1, wherein the reception map means includes a storage means having a storage capacity capable of including a maximum cycle of reception data in a signal addressed to the own apparatus having a predetermined cycle transmitted from a communication partner. . The receiving device according to claim 1, wherein the map control unit updates the reception position management information in the reception map unit autonomously at a predetermined cycle. 3. The map control unit according to claim 1, wherein the map control unit updates the reception position management information in the reception map unit in accordance with an instruction from a software program operating in a processor provided in the own device or another device. Receiver. The said map control means, when updating said reception position management information, clears all reception position management information stored immediately before and regenerates new reception position management information. 5. The receiving device according to any one of 4. 5. The map control means according to claim 1, wherein when updating said reception position management information, said map control means overwrites previously stored reception position management information with new reception position management information. The receiving device according to any one of the above. The reception map means, when generating the reception position management information, as a result of receiving the reception data addressed to the own device in the fixed cycle N times, and detecting the reception data at least once or more. 7. The receiving apparatus according to claim 1, wherein the receiving apparatus stores the receiving position management information. 8. The reception map unit according to claim 7, wherein the reception map unit is capable of changing the number of reception processes over N times in the generation of the reception position management information in accordance with an instruction from a software program operating on a processor provided in the own device or another device. 9. Receiver. The reception map means can change the number of times of detection of the reception data detected by N times of reception in the generation of the reception position management information in accordance with an instruction from a software program operating in a processor provided in the own device or another device. The receiving device according to claim 7 or 8, wherein A communication terminal device comprising the receiving device according to claim 1. A base station apparatus for performing communication relating to broadcast-type data with the communication terminal apparatus according to claim 10.

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