WO2004084505A1 - 伝送帯域割り付け装置 - Google Patents
伝送帯域割り付け装置 Download PDFInfo
- Publication number
- WO2004084505A1 WO2004084505A1 PCT/JP2003/003243 JP0303243W WO2004084505A1 WO 2004084505 A1 WO2004084505 A1 WO 2004084505A1 JP 0303243 W JP0303243 W JP 0303243W WO 2004084505 A1 WO2004084505 A1 WO 2004084505A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmission quality
- terminals
- transmission
- terminal
- band
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
Definitions
- the present invention relates to a transmission band allocating device that efficiently and flexibly allocates a band to be used for transmitting individual packets in a wireless transmission system in which transmission information is transmitted in packet units.
- CDMA Code Division Multiple Access
- HSDPA High Speed Downlink Packet Access
- FIG. 8 is a diagram showing a configuration example of a mobile communication system to which HSPDA is applied.
- terminals 50-1 to 50 -N are located in a wireless zone 41 formed by the wireless base stations 40.
- the radio base station 40 includes the following elements.
- Radio section 4 3 connected to the feed end of antenna system 4 2
- -A network interface section 46 connected to a communication link 45 formed between a base station control station (not shown) and a specific port of the processor 44;
- the processor 44 cooperates with the above-described base station control station via the network interface unit 46 and the communication link 45.
- the transmission information to be exchanged with the terminals 50-1 to 50-N is generated, analyzed, and relayed.
- the radio section 43 has a predetermined multiple access method between the terminals 50-1 to 50-N via the antenna system 42 under the control of the processor 44 (here, for simplicity, Assume that the MA method is used.), A radio transmission path suitable for the frequency allocation and channel configuration is formed as appropriate.
- the processor 44 is shown in FIGS. 9 and 10 respectively in order to be able to appropriately allocate the band to be used for the above-described HSDPA to these terminals 50-1 to 50 -N.
- the mobile station information register 61 and the statistical information register 62 shown in a specific storage area of the main storage (or external storage).
- Statistical information registers 62 that individually correspond to terminals 50-1 to 50-N and are configured as a set of records in which control information described later is stored.
- the subscript "C” means that the subscripts "1" to “N” can correspond to any of the subscripts "1" to “N”. Add it to “50”.
- a terminal 50-C that is to receive the bucket transmission service based on HSDPA is provided with the packet transmission service and is to be shared with other terminals on the time axis (hereinafter referred to as “shared channel”). ) Is notified under the predetermined channel control, the broadcast information of the broadcast information that is constantly received in a known form from the radio base station 40 via the control channel formed by the radio base station 40 is transmitted. Monitor the transmission quality at a predetermined frequency.
- the terminal 50-C transmits the monitored transmission product to the radio base station 40 via an uplink of a predetermined radio channel (for example, the control channel described above).
- a predetermined radio channel for example, the control channel described above.
- the processor 44 appropriately performs the following processing according to the individual “mobile station information” received via the antenna system 42 and the radio unit 43.
- test transmission quality Acquire the identifier and transmission quality (hereinafter referred to as “latest transmission quality”) included in the received “mobile station information”.
- the transmission quality (hereinafter referred to as “preceding transmission quality”) stored in the record corresponding to the identifier obtained in this manner and the “newest transmission quality” described above. Is calculated based on a predetermined algorithm (here, for simplicity, the exponential smoothing method is assumed).
- the “statistical information” is stored in the record corresponding to the above-mentioned identifier among the records of the statistical information register 62.
- the processor 44 may determine whether the above-mentioned “shared channel” is to be assigned to any of the terminals 50-1 to 50 -N (for example, a predetermined transmission rate, In this case, it is determined as appropriate according to the termination of the service to the terminal to which the shared channel is allocated, and the like.
- the terminal corresponding to the record having the highest stored transmission quality e among the records of the mobile station information register 6 1 (hereinafter referred to as “specific terminal” for simplicity, and the code “5 0-1 ”is added.) Is specified.
- the algorithm for realizing the specific terminal 50-1 is hereinafter referred to as a “maximum CIR method”.
- An "access permission notification" containing an identifier of 0-1 is sent.
- the above-mentioned “Maximum CIR method” is used.
- the "statistical information register 62 pair The terminal having the largest ratio E between the "statistics s " stored in the corresponding record and the "transmission quality e" stored in the corresponding record of the mobile station information register 61 is a specific terminal.
- the PF (Proportional Fairness) method in which the terminal 5 Ot is specified, is applied.
- the specific terminal 50-1 Each time the specific terminal 50-1 identifies such an “access permission notification”, the specific terminal 50-1 will continue for a certain period of time from the point in time at which the “access permission notification” is identified for a predetermined period of time. Then, the packet received via the “shared channel” is fetched and processed as a bucket corresponding to the own station.
- Such a packet is transmitted based on the following “adaptive modulation scheme” and “Hybrid ARQ” by linking a processor 44 and a radio section 47 provided in the radio base station 40.
- the latest transmission information is notified from the terminal corresponding to the destination every few milliseconds. If the latest transmission information is good, a modulation method with high transmission efficiency such as “16-QAM” is used. Is applied, and conversely, if it is not good, a modulation scheme such as “QP SK” is applied in real time.
- the radio base station 40 When the radio base station 40 identifies the “retransmission request” transmitted from the specific terminal 50_t, the radio base station 40 does not simply retransmit the same information, but encodes a code generated by performing error correction coding on the information.
- the “shared channel” refers to a terminal in which the transmission quality of a signal arriving via the control channel from the radio base station 40 is the maximum among terminals to which the packet transmission service based on the HSD PA is to be provided in parallel. On the other hand, it is allocated for each packet.
- the “shared channel” is efficiently shared by multiple terminals under a modulation scheme and retransmission that are flexibly adapted to the actual transmission quality.
- Patent Document 1
- Non-Patent Document 1 IEICE Technique RCS 200 1—29 1, p. 51–58, Mar. 2
- the common channels are allocated to terminals 50_1 to 50-N fairly compared to the case where the “maximum CIR method” is applied. Effective throughput decreases. Disclosure of the invention
- an object of the present invention to provide a transmission band allocating device that provides services to individual terminals fairly and improves the throughput of shared channels. Furthermore, an object of the present invention is to fairly allocate the bandwidth to the terminal as compared to the conventional example in which the terminal to which the bandwidth is to be allocated has been selected regardless of the bandwidth already allocated as a result. Is that
- Another object of the present invention is to improve the fairness of individual terminals and to ensure the minimum QoS of these terminals with high accuracy.
- an object of the present invention is to provide an integrated value that is a reference for selecting a terminal to which a band is to be allocated, and that the integrated value obtained in advance is smoothed in a time-series order without being repeatedly initialized.
- the value range of the integrated value is maintained in a desired finite range.
- an object of the present invention is to increase the throughput of a band, which is a finite resource, as compared with a conventional example in which a terminal to which a band is to be allocated is selected regardless of the number of retransmissions performed in advance. , And is kept high.
- an object of the present invention is to provide a terminal having a finite resource band, compared to a case where a terminal to which a band is to be allocated is selected based on the number of mere retransmissions performed in advance. The point is that the throughput is further increased and kept high.
- an object of the present invention is to provide a terminal to which a band to be allocated is allocated based on the number of retransmissions performed in advance or an integrated value of the number of retransmissions. Is that the frequency of retransmission is reduced.
- an object of the present invention is to improve the fairness of terminals and maintain the terminal fairness higher than in the case where terminals to which bands are to be allocated are selected irrespective of the priority in the preceding band allocation. It is in the point.
- an object of the present invention is to reduce the degradation of service quality caused by these wide fluctuations in transmission quality compared to a case where a terminal to which a band is to be allocated is selected regardless of the uplink transmission quality. And the decrease in throughput is alleviated.
- an object of the present invention is to provide a system with a high throughput without significantly impairing the fairness of terminals, compared to a case where terminals to which the bandwidth is to be allocated are selected irrespective of the uplink transmission quality. The point is that it can be improved.
- an object of the present invention is to temporarily or widely fluctuate the transmission quality as compared with a case where a terminal to which a band is to be allocated is selected by referring to a single transmission quality of an uplink. In this case, the fairness of the terminal is ensured and the throughput is improved.
- an object of the present invention is to maintain fairness of terminals higher than in the case where a terminal to which a band is to be allocated is selected irrespective of the uplink transmission quality.
- an object of the present invention is to ensure the fairness of terminals even when the uplink transmission quality temporarily or widely fluctuates.
- a further object of the present invention is to reduce the cost, reduce the size, and improve the reliability in addition to the simplification of the configuration.
- an object of the present invention is that the average value obtained in advance is smoothed in order of time series without being repeatedly initialized, and the range of the average value is maintained in a desired finite range. On the point.
- an object of the present invention is to maintain high throughput of a transmission band and fairness of terminals in a wireless transmission system, and to improve overall reliability and service quality. As a result, running costs can be reduced.
- a transmission bandwidth allocating device configured by applying the ⁇ maximum CIR method '' to a terminal having a smaller integrated value of a bandwidth allocated in advance, the bandwidth being preferentially allocated.
- a band is preferentially allocated to a terminal as the band actually allocated earlier is smaller.
- a transmission band allocating device configured by applying an improvement to the “maximum CIR method” such that a band is preferentially allocated as the number of preceding retransmissions is smaller.
- the priority to which a band is to be allocated is set to be lower for a terminal as the number of times of retransmission actually performed earlier increases. Further, the above-mentioned object is achieved by a transmission band allocating device configured by applying an improvement to the “maximum CIR method” that a band is preferentially allocated as the cumulative value of the number of preceding retransmissions is smaller.
- the priority to which a band is to be allocated is set to be lower for a terminal as the length of the period in which retransmission is performed earlier is longer. Further, the above-mentioned object is achieved by a transmission band allocating device configured by improving the “maximum CIR method” so that a band is preferentially allocated as the average value of the number of retransmissions is smaller. You.
- a terminal is preferentially allocated a band as the standby time is longer because a band is allocated in advance.
- the above-mentioned purpose is configured by applying the improvement to the "maximum CIR method" in which the lower the priority assigned to the band earlier, the higher the priority is assigned to the band. This is achieved by a transmission bandwidth allocating device.
- the priority for which a band is individually allocated to a terminal is a predetermined frequency even if the above-mentioned downlink transmission quality is not higher than other terminals. Is set high.
- the above-mentioned object is to improve the maximum CIR method in which the smaller the variation in the transmission quality history of the upstream link formed in the previously allocated bandwidth, the more preferentially the bandwidth is allocated. This is achieved by a transmission bandwidth allocating device configured by
- the band is preferentially allocated to each terminal as the range in which the transmission quality of the uplink formed individually with these terminals changes is narrower.
- the purpose described above was configured by applying an improvement to the “maximum CIR method” in which the higher the transmission quality of the downlink of the bandwidth allocated in advance, the higher the priority of the bandwidth allocation. This is achieved by a transmission band allocation device.
- a band is preferentially allocated to a terminal not only for a downlink but also for a transmission quality of an uplink.
- the above-mentioned object is achieved by improving the maximum CIR method J, in which the higher the average value of the downlink transmission quality of the previously allocated bandwidth is, the higher the bandwidth is allocated.
- the terminal provides the terminal with the higher the average value of the transmission quality of the uplink along with the transmission quality of the downlink. Assigned preferentially.
- the purpose of the above is to improve the "PF method", not the “maximum CIR method", so that terminals with smaller integrated values of the bandwidth allocated earlier are assigned priority to the bandwidth. This is achieved by the transmission bandwidth allocating device configured as described above.
- a terminal is preferentially allocated a band as the band actually allocated earlier is smaller.
- the objectives described above are not for the "maximum CIR method” but for the "PF method”. This is achieved by the transmission bandwidth allocating device configured by performing “improvement in which the bandwidth is allocated preferentially as the number of latest retransmissions performed is smaller”.
- the priority to which a band is to be allocated is set to be lower for a terminal as the number of times of retransmission actually performed earlier increases.
- the purpose described above is to improve the "PF method” rather than the "maximum CIR method” so that "the smaller the cumulative value of the number of preceding retransmissions is, the more preferentially the bandwidth is allocated". This is achieved by a transmission bandwidth allocating device configured as described above.
- the priority to which a band is to be allocated is set to be lower for a terminal as the length of the period in which retransmission is performed earlier is longer.
- the above-mentioned purpose is configured by applying an improvement to the PF method instead of the maximum CIR method, in which the smaller the average value of the number of retransmissions is, the more preferentially the bandwidth is allocated. This is achieved by a transmission bandwidth allocating device.
- a terminal is preferentially allocated a band as the standby time is longer because a band is allocated in advance.
- the objective described above is to improve the PF method, not the maximum CIR method, so that the lower the priority assigned to the band, the lower the priority is assigned to the band. This is achieved by a transmission bandwidth allocating device configured by the above.
- the priority for which a band is individually allocated to a terminal is a predetermined frequency even if the above-mentioned downlink transmission quality is not higher than other terminals. Is set high.
- Transmission bandwidth allocation device configured by performing ⁇ improvement in which the smaller the variation in the transmission quality history of the uplink formed in the allocated bandwidth, Achieved.
- the band is preferentially allocated to each terminal as the range in which the transmission quality of the uplink formed individually with these terminals changes is narrower.
- the purpose described above is to improve the PF method, not the maximum CIR method, by saying that the higher the downlink transmission quality of the bandwidth allocated earlier, the higher the priority of bandwidth allocation. This is achieved by the transmission bandwidth allocating device configured by performing the above.
- a band is preferentially allocated to a terminal not only for a downlink but also for a transmission quality of an uplink.
- the above-mentioned object is to set the priority that the higher the average value of the downlink transmission quality of the bandwidth allocated earlier is, the higher the bandwidth is given to the PF method instead of the maximum CIR method. This is achieved by the transmission bandwidth allocating device configured by performing the “allocation improvement”.
- the terminal is preferentially allocated a band in accordance with the transmission quality of the downlink and as the average value of the transmission quality of the uplink is larger;
- the above-mentioned object is to improve the "maximum CIR method” and "PF method” by "improving that the lower the transmission quality of the uplink formed in the previously allocated band, the higher the bandwidth is allocated.” This is achieved by the transmission band allocating device configured by performing the above.
- the band is preferentially allocated to the terminal as the uplink transmission quality is lower.
- the above-mentioned purpose is based on the “maximum CIR method” and “PF method” that “the smaller the average value of the transmission quality of the uplink formed in the band allocated earlier, the higher the bandwidth This is achieved by the transmission band allocating device configured by performing the “improvement in which the data is allocated”.
- a band is preferentially allocated to a terminal as the average value of uplink transmission quality is smaller.
- the above-mentioned object is to provide a modulation scheme determined under the adaptive modulation scheme applied to the downlink and a transmission path encoding scheme determined under the hybrid ARQ scheme applied to the downlink.
- This is achieved by a transmission band allocating device characterized in that the transmission quality of the downlink is specified as the transmission quality corresponding to both or one of them.
- the transmission quality of the downlink which is a criterion for selecting a terminal to which a band is to be allocated, is appropriately determined under the adaptive modulation scheme and / or the hybrid ARQ scheme. As long as it is determined, it is specified without the use of dedicated hardware / software.
- the above-described object is to provide both a modulation scheme determined under an adaptive modulation scheme applied to an uplink and a transmission path coding scheme determined under a hybrid ARQ scheme applied to the uplink.
- this is achieved by a transmission band allocating device characterized in that the transmission quality of the uplink described above is specified as the transmission quality corresponding to either one.
- the transmission quality of the uplink which is a criterion for selecting a terminal to which a band is to be allocated, is appropriately determined under the adaptive modulation scheme and / or the hybrid ARQ scheme. As long as it is determined, it is specified without any special hardware or software.
- the above-mentioned object is achieved by a transmission band allocating apparatus characterized in that the above-described integrated value is held as a product sum with a weight having a larger value in ascending time series.
- the integrated value serving as a criterion for selecting a terminal to which a band is to be allocated is obtained as a product weight with a smaller weight as an older value.
- the above-mentioned object is achieved by a transmission band allocating device characterized in that the above-mentioned average value is held as a product sum with a weight having a larger value in ascending time series.
- the average value serving as a criterion for selecting a terminal to which a band is to be allocated is obtained as a smaller weighted sum of products with older values.
- FIG. 1 is a principle block diagram of the present invention.
- FIG. 2 is a diagram showing a configuration of a bandwidth register.
- FIG. 3 is a diagram showing the configuration of the retransmission count register.
- FIG. 4 is a diagram showing a configuration of the standby time register.
- FIG. 5 is a diagram showing a configuration of the priority register.
- FIG. 6 is a diagram showing a configuration of the transmission quality register.
- FIG. 7 is a diagram illustrating a configuration of the transmission quality distribution register.
- FIG. 8 is a diagram showing a configuration example of a mobile communication system to which HSPDA is applied.
- FIG. 9 is a diagram showing a configuration of the mobile station information register.
- FIG. 10 is a diagram showing the configuration of the statistical information register. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a principle block diagram of the present invention.
- the principle of the first transmission band allocating device is as follows.
- the transmission quality obtaining unit 11 holds the transmission quality of the downlink notified from the terminals 10-1 to 10-N for each of the terminals 10-1 to 10-N.
- the result holding means 12 holds, for each of these terminals 10 -1 to 10 -N, the integrated value of the band allocated in advance to the terminals 10 -1 to 10 -N.
- the assignment means 13 is a terminal that has a smaller value among the terminals 10 -1 to 10 -N, the smaller the integrated value held in the result holding means 12, and the transmission quality acquisition means 11 holds.
- the bandwidth is preferentially allocated to the terminals corresponding to the descending order of the product of the transmission quality.
- V is assigned a band with a smaller bandwidth actually allocated earlier, and is assigned a higher priority.
- the bandwidth allocation to the terminals 10-to-10-N is performed fairly. .
- the principle of the second transmission band allocating device is as follows.
- the transmission quality acquiring means 11 holds the downlink transmission quality notified from the terminals 10-1 to 10-N for each of the terminals 10-1 to 10-N.
- the result holding unit 12r holds the number of retransmissions of the transmission unit previously transmitted to the terminals 10-1 to 10-N for each of the terminals 10-1 to 10-N.
- the allocating means 13r includes, among the terminals 10-1 to 10-N, a weight having a smaller value as the number of retransmissions held in the result holding means 12r is larger, and a transmission quality held by the transmission quality acquiring means 11 Priority is assigned to terminals corresponding to the descending order of the product.
- the throughput of the band which is a finite resource, is increased and maintained higher than in the conventional example in which the terminal to which the band is to be allocated is selected regardless of the number of such retransmissions.
- the principle of the third transmission band allocating device is as follows.
- the transmission quality obtaining means 11 holds the transmission quality of the downlink transmitted from the terminals 10-1 to 10-N for each of the terminals 10-1 to 10-N.
- the result holding means 12R holds, for each of the terminals 10-1 to 10-N, an integrated value of the number of retransmissions of the transmission unit transmitted before the terminals 10-1 to 10-N.
- the allocating means 13R includes, among the terminals 10-1 to 10-N, a weight that becomes smaller as the integrated value held in the result holding means 12R is larger, and a weight stored in the transmission quality acquiring means 11 Bandwidth is assigned preferentially to terminals that correspond in descending order of product with transmission quality.
- the priority to which a band should be allocated is set to be smaller as the length of the period in which retransmission is performed earlier is longer.
- the throughput of the band which is a finite resource, is further increased and maintained higher than the case where the terminal to which the band is to be allocated is selected based on the number of mere retransmissions performed in advance.
- the principle of the fourth transmission band allocating device is as follows.
- the transmission quality obtaining means 11 holds the transmission quality of the downlink notified from the terminals 10-1 to 10-N for each of the terminals 10-1 to 10-N.
- the result holding means 12S calculates the average value of the number of retransmissions of the transmission unit transmitted before the terminal 10-1 to 10-N. These terminals are retained for each of 10-l to 10-N.
- the allocating means 13 S is, among the terminals 10-1 to 10 -N, a weight that becomes smaller as the average value held in the result holding means 12 S is larger, and the transmission quality obtaining means 11 Bandwidth is assigned preferentially to terminals that correspond in descending order of product with transmission quality.
- the terminals 10-1 to 10-N provide the average of the number of times such retransmissions are performed, even if the retransmissions are repeated suddenly or temporarily in advance.
- the principle of the fifth transmission band allocating device is as follows.
- the transmission quality acquiring means 11 holds the downlink transmission quality notified from the terminals 10-1 to 10-N for each of the terminals 10-1 to 10-N.
- the result holding means 12W holds, for each of the terminals 10-1 to 10-N, the waiting time required for the band to be allocated in advance.
- the allocating means 13W includes, among the terminals 10-1 to 10-N, a weight which becomes larger as the waiting time held by the result holding means 12W is longer, and a transmission quality which is held by the transmission quality obtaining means 11.
- the bandwidth is assigned preferentially to terminals that correspond in descending order of the product.
- the bandwidth is preferentially allocated as the waiting time is longer because the bandwidth is allocated earlier.
- the fairness of the terminals 10-1 to 10-N is improved as compared with the conventional example in which the terminals to which the bands are to be allocated are selected regardless of such time, and the minimum Q of these terminals is o S is assured with high accuracy.
- the principle of the sixth transmission band allocating device is as follows.
- the transmission quality acquiring unit 11 holds the transmission quality of the downlink notified from the terminals 10-1 to 10-N for each of the terminals 10-1 to 10-N.
- the result holding means 12P holds, for each of the terminals 10-1 to 10-N, the priority assigned as the order in which the band can be allocated in advance.
- the allocating means 13P is a weight that, among the terminals 10-1 to 10-N, a weight which becomes larger as the priority held in the performance holding means 12P is lower, and a transmission quality The bandwidth is preferentially allocated to the terminals corresponding to the descending order of the product of the transmission quality and the transmission quality held in the obtaining means 11.
- the priority to which the bandwidth should be individually allocated to the terminals 10-to 10-N is determined at a predetermined frequency even when the downlink transmission quality is not higher than other terminals. Set high.
- the principle of the seventh transmission band allocating device is as follows.
- the transmission quality acquiring unit 11 holds the downlink transmission quality notified from the terminals 10-1 to 10-N for each of the terminals 10-1 to 10-N.
- the result holding means 12D stores the history of the transmission quality of the uplink formed in the band allocated prior to the terminals 10-1 to 10-N for these terminals 10-1 to 10-N. Hold each time.
- the assignment means 13D includes, among the terminals 10-1 to 10-N, a weight that becomes smaller as the variation in the history of the transmission quality held in the result holding means 12D becomes larger, and the transmission quality acquisition means 11 Bandwidth is preferentially allocated to terminals that correspond in descending order of the product with the retained transmission quality. That is, the smaller the range in which the transmission quality of the uplink formed individually between the terminals 10-1 to 10-N and the terminals 10-1 to 10-N changes, the higher the priority. Band is allocated to.
- the degradation of service quality and throughput due to these wide fluctuations in transmission quality are compared to the case where terminals to which bands are to be allocated are selected. The decline is alleviated.
- the principle of the eighth transmission band allocating device is as follows.
- the transmission quality acquiring unit 11 holds the downlink transmission quality notified from the terminals 10-1 to 10-N for each of the terminals 10-1 to 10-N.
- the performance holding means 1 2 q calculates the transmission quality of the uplink formed in the band allocated prior to the terminals 10-1 to 10 -N for each of these terminals 10-1 to 10 -N. To hold.
- the allocation means 13 q is assigned to the weights of the terminals 10-1 to 10 -N which become larger as the transmission quality held in the result holding means 12 q becomes larger, and the transmission quality obtaining means 11.
- Product of retained transmission quality Bandwidth is assigned preferentially to terminals that correspond in descending order.
- the throughput of the terminals 10-1 to 10-N is not significantly impaired, and Is improved.
- the principle of the ninth transmission band allocating device is as follows.
- the transmission quality acquiring means 11 holds the transmission quality of the downlink transmitted from the terminals 10-1 to 10-N for each of the terminals 10-1 to 10-N.
- the performance holding means 12Q calculates the average value of the transmission quality of the uplink formed in the band allocated in advance to the terminals 10-1 to 10-N for each of the terminals 10-1 to 10-N. Hold.
- the allocation means 13Q is a weight that becomes larger as the average value held in the result holding means 12Q is larger among the terminals 10-1 to 10-N, and the transmission quality held by the transmission quality acquisition means 11 Priority is assigned to terminals corresponding to the products in descending order.
- the band is preferentially allocated to the terminals 10-1 to 10 -N in accordance with the transmission quality of the downlink, as the average value of the transmission quality of the uplink is larger. Therefore, compared to the case where the terminal to which the bandwidth is to be allocated is selected by referring to such a simple transmission quality of the uplink, the transmission quality temporarily or widely fluctuates. Even so, the fairness of the terminals 10-1 to 10-N is ensured, and the throughput is improved.
- the principle of the tenth transmission band allocating device is as follows.
- the transmission quality obtaining means 21 holds, for each of the terminals 20-1 to 20-N, the latest transmission quality individually notified for the downlink and the average value of the transmission quality.
- the result holding means 12 holds, for each of the terminals 20-1 to 20-N, the integrated value of the bandwidth allocated in advance to the terminals 20-1 to 20-N.
- the allocating means 23 is, of the terminals 20-to 20-N, a weight that becomes smaller as the integrated value held in the result holding means 22 becomes larger, and the transmission quality and the average held by the transmission quality acquiring means 21.
- Bandwidth is preferentially allocated to terminals that correspond in descending order of the product of the ratio to the value.
- the terminals 20-1 to 20-N have a small amount of bandwidth actually allocated earlier.
- the bandwidth is allocated with priority as much as possible.
- the bandwidth allocation to terminals 20-1 to 10-N is performed fairly compared to the conventional example in which the terminal to which the bandwidth is to be allocated is selected regardless of the bandwidth already allocated as a result. .
- the principle of the ⁇ -th transmission band allocating device is as follows.
- the transmission quality obtaining means 21 holds, for each of the terminals 20-1 to 20-N, the latest transmission quality individually notified for the downlink and the average value of the transmission quality.
- the result holding means 22r holds the number of retransmissions of the transmission unit transmitted prior to the terminal 20-to 20-N for each of the terminals 20-1 to 20-N.
- the allocating means 23r is, of the terminals 20 -1-20-N, a weight that becomes smaller as the number of retransmissions held in the result holding means 22r is larger, and the transmission quality and average value held in the transmission quality acquiring means 21.
- Bandwidth is preferentially allocated to terminals that correspond in descending order of the product of the ratio and.
- the priority to which a bandwidth should be allocated is set to be lower as the number of retransmissions actually performed earlier increases.
- the throughput of the band which is a finite resource, is increased and maintained higher than in the conventional example in which the terminal to which the band is to be allocated is selected regardless of the number of such retransmissions.
- the principle of a twelfth transmission band allocating device is as follows.
- the transmission quality obtaining means 21 holds, for each of the terminals 20-1 to 20-N, the latest transmission quality individually notified for the downlink and the average value of the transmission quality.
- the result retaining means 22R retains, for each of the terminals 20-1 to 20-N, an integrated value of the number of retransmissions of the transmission unit previously transmitted to the terminals 20-1 to 20-N.
- the allocating means 23R includes, among the terminals 20-1 to 20N, a weight that becomes smaller as the integrated value held in the result holding means 22R is larger, and the transmission quality and average value held in the transmission quality acquiring means 21.
- Bandwidth is preferentially allocated to terminals that correspond in descending order of the product of and the ratio of and.
- the band is allocated and the priority to be set is set smaller.
- the throughput of the band which is a finite resource, is Is further increased and maintained high.
- the principle of a thirteenth transmission band allocating device is as follows.
- the transmission quality acquisition means 21 holds, for each terminal 20-to 20-N, the latest transmission quality individually notified for the downlink and the average value of the transmission quality.
- the result holding means 22 S holds the average value of the number of retransmissions of the transmission unit transmitted before the terminal 20 -1 to 20 -N for each of the terminals 20 -1 to 20 -N. I do.
- the allocating means 23 S is, of the terminals 20 -1- 20 -N, a weight that becomes smaller as the average value held in the result holding means 22 S is larger, and is stored in the transmission quality acquiring means 21
- the bandwidth is preferentially allocated to terminals corresponding to the descending order of the product of the obtained transmission quality and the ratio of the average value.
- the terminal 20 -1 to 20 -N has the number of times such retransmissions are performed, even if retransmissions are repeated suddenly or temporarily in advance.
- retransmission is performed in the band allocated to the terminal, compared to the case where the terminal to which the band is to be allocated is selected based on the number of mere retransmissions performed earlier or the integrated value of the number of retransmissions. Frequency is reduced.
- the principle of the fourteenth transmission band allocating device is as follows.
- the transmission quality acquiring means 21 holds, for each of the terminals 20 -1 to 20 -N, the latest transmission quality individually notified for the downlink and the average value of the transmission quality.
- the result holding means 22 W holds, for each of the terminals 20 -1 to 20 -N, the waiting time required for the band to be allocated in advance.
- the allocating means 23 W is, of the terminals 20 -1 to 20 -N, a weight which becomes larger as the waiting time held in the result holding means 22 W is longer, and is stored in the transmission quality acquiring means 21.
- the bandwidth is preferentially allocated to the terminals corresponding to the descending order of the product of the obtained transmission quality and the ratio of the average value.
- the band is preferentially assigned as the waiting time is longer because the band is assigned earlier.
- the fairness of the terminals 20 -1 to 20 - ⁇ is improved as compared with the conventional example in which the terminal to which the band is to be allocated is selected irrespective of such time.
- the minimum QoS is guaranteed with high accuracy.
- the principle of the fifteenth transmission band allocating device is as follows.
- the transmission quality acquiring means 21 holds, for each of the terminals 20-1 to 20-N, the latest transmission quality individually notified for the downlink and the average value of the transmission quality.
- the performance retaining means 22P retains, for each of the terminals 20-1 to 20-N, the priority assigned as the order in which the bandwidth can be allocated in advance.
- the allocating means 23P is, of the terminals 20-1 to 20-N, a weight which becomes larger as the priority held in the result holding means 22P is lower, and is stored in the transmission quality acquiring means 21. Bandwidth is preferentially allocated to terminals corresponding to the descending order of the product of the transmission quality and the ratio of the average value.
- the priority to which the bandwidth should be individually allocated to the terminals 20-1 to 20-N is higher at a predetermined frequency even if the above-mentioned downlink transmission quality is not higher than other terminals. Is set.
- the fairness of the terminals 20-1 to 20-N is improved and maintained higher than in the case where a terminal to which a band is to be allocated is selected irrespective of the priority of the preceding band allocation.
- the principle of a sixteenth transmission band allocating device is as follows.
- the transmission quality acquiring means 21 holds, for each of the terminals 20-1 to 20-N, the latest transmission quality individually notified for the downlink and the average value of the transmission quality.
- the result retaining unit 22D retains the history of the transmission quality of the uplink formed in the band allocated prior to the terminals 20-1 to 20-N for each of the terminals 20-1 to 20-N.
- the allocation means 23D is assigned to the weights of the terminals 20-1 to 20-N, the weight of which becomes smaller as the variation of the history of the transmission quality held in the result holding means 22D is larger, and the transmission quality obtaining means 21.
- Bandwidth is preferentially allocated to terminals corresponding to the descending order of the product of the retained transmission quality and the ratio of the average value.
- the degradation of service quality and throughput due to these wide fluctuations in transmission quality are compared to the case where terminals to which bands are to be allocated are selected. The decline is alleviated.
- the principle of the + 7th transmission band allocating device is as follows.
- the transmission quality obtaining means 21 holds, for each of the terminals 20-1 to 20-N, the latest transmission quality individually notified of the downlink and the average value of the transmission quality.
- the result retaining means 22q retains, for each of the terminals 20-1-20-N, the transmission quality of the uplink formed in the band allocated prior to the terminals 20-1 to 20-N.
- the allocating means 23 q is, among the terminals 20-1 to 20 -N, a weight having a larger value as the transmission quality stored in the performance holding means 22 q is larger, and the weight stored in the transmission quality acquiring means 21.
- the bandwidth is preferentially allocated to terminals corresponding to the descending order of the product of the transmission quality and the ratio of the average value.
- the band is preferentially allocated as the transmission quality of the uplink as well as the downlink is higher.
- the fairness of the terminals 20-1 to 20-N is not significantly impaired and the throughput is not significantly reduced. Is improved.
- the principle of an eighteenth transmission band allocating device is as follows.
- the transmission quality obtaining means 21 holds, for each of the terminals 20-1 to 20-N, the latest transmission quality individually notified for the downlink and the average value of the transmission quality.
- the performance retaining means 22Q retains, for each of these terminals 20-1 to 20-N, the average value of the transmission quality of the uplink formed in the band allocated prior to the terminals 20-1 to 20-N.
- the allocation means 23Q is a weight that becomes larger as the average value held in the result holding means 22Q is larger among the terminals 20-1 to 20-N, and the transmission held by the transmission quality acquisition means 21. Bandwidth is preferentially allocated to terminals that correspond in descending order of the product of the quality and the ratio of the average value.
- the band is preferentially allocated to the terminals 20-1 to 20-N in accordance with the transmission quality of the downlink, as the average value of the transmission quality of the uplink increases. Therefore, compared to the case where the terminal to which the bandwidth is to be allocated is selected by referring to such a simple transmission quality of the uplink, the transmission quality temporarily or widely fluctuates. Even so, the fairness of the terminals 20-1 to 20-N is ensured, and the throughput is improved.
- the principle of a nineteenth transmission band allocating device is as follows.
- the transmission quality acquiring means 21 holds, for each terminal 20 -1 to 20 -N, the latest transmission quality individually notified for the downlink and the average value of the transmission quality.
- the performance maintaining means 22q calculates the transmission quality of the uplink formed in the band allocated prior to the terminals 20-1 to 20-N for each of these terminals 20-to 20-N.
- the allocating means 24q is a weight that becomes smaller as the transmission quality stored in the result holding means 22q is larger than the terminal 20-1 to 20-N.
- the bandwidth is preferentially allocated to the terminals corresponding to the descending order of the product of the transmission quality and the ratio of the average value held in 1.
- the band is preferentially allocated to the terminals 20 -1 to 20 -N as the uplink transmission quality is lower.
- the fairness of the terminals 20-1 to 20-N is maintained higher than in the case where a terminal to which a band is to be allocated is selected regardless of such uplink transmission quality.
- the principle of a twentieth transmission band allocating device is as follows.
- the transmission quality acquiring means 21 holds, for each terminal 20 -1 to 20 -N, the latest transmission quality individually notified for the downlink and the average value of the transmission quality.
- the performance maintaining means 2 2 Q calculates the average value of the transmission quality of the uplink formed in the band allocated prior to the terminals 20 -1 to 20 -N for these terminals 20 -1 to 2-2. 0 Keep every N.
- the allocating means 24Q is a weight that becomes smaller as the average value held in the result holding means 22Q is larger among the terminals 20-1 to 20-N, and the transmission quality acquiring means 21. Bandwidth is preferentially allocated to terminals corresponding to the descending order of the product of the retained transmission quality and the ratio of the average value.
- the band is preferentially allocated as the average value of the uplink transmission quality is smaller.
- the fairness of the terminals 20 -1 to 20 -N is ensured even when the transmission quality of the uplink changes temporarily or widely.
- the principle of the twenty-first transmission band allocating device according to the present invention is as follows.
- the transmission quality of the downlink is determined by the adaptive modulation scheme applied to the downlink. Is the transmission quality corresponding to both or one of the modulation scheme determined by the above and the transmission path coding scheme determined by the hybrid ARQ scheme applied to this downlink.
- the principle of the twenty-second transmission band allocating device according to the present invention is as follows.
- the transmission quality of the uplink is determined by both the modulation scheme determined under the adaptive modulation scheme applied to the uplink and the channel coding scheme determined under the hybrid ARQ scheme applied to the uplink. Alternatively, the transmission quality corresponds to either one.
- the principle of the twenty-third transmission band allocating device according to the present invention is as follows.
- Result holding means 1 2, 1 2 R, 1 2 S, 2 2, 2 2 R, 2 2 S are, for each terminal 10 -1 to 10 -N, 2.0 -1 to 2 O -N,
- the integrated value is stored as the product sum with the weight having the largest value in ascending time series.
- the integrated value that becomes the criterion for selecting a terminal to which an obi castle should be assigned is obtained as a product weight that is weighted smaller as the value is older.
- the principle of the twenty-fourth transmission band allocating device according to the present invention is as follows.
- the result holding means 12 Q and 22 Q are terminals 10 -1 to 10 -N and 20 -1 to For every 20-N, the average value is stored as the product sum with the weight with the largest value in ascending time series.
- the average value used as a criterion for selecting a terminal to which a band is to be allocated is obtained as a smaller weighted sum of products with older values.
- the average obtained in advance can be compared with the time series without being initialized repeatedly.
- the average value range is maintained within a desired finite range.
- a feature of the present embodiment lies in a procedure of a process in which a “specific terminal” is specified by the processor 44 provided in the wireless base station 40.
- the specific storage area of the main memory (or the external memory) of the processor 44 includes “terminals 50 -1 to 50 -N individually, and the number of times described later.
- a bandwidth register 31 "configured as a set of records in which the integrated value of is stored is arranged.
- the processor 44 specifies a terminal satisfying any one of the following conditions as the specific terminal 50-t.
- the processor 44 stores the specific terminal 50 in the record of the bandwidth register 31. Increments the count value stored in the record corresponding to -t.
- the “common channel” is preferentially assigned to a terminal having a small number of prior allocations (integral value of the allocated bandwidth in the bandwidth of the common channel).
- terminals that should be provided with packet transmission services in parallel based on HSDPA have a fairer “common channel” compared to the conventional example in which a specific terminal is specified regardless of the integrated value described above. Is assigned.
- all of the bandwidth of the “common channel” is allocated to each specific terminal for a certain period of time, and each record of the bandwidth register 31 includes the “common channel” for each terminal.
- the accumulated value w of the number of times assigned is stored.
- both the bandwidth of the “common channel” allocated to each specific terminal and the length of the period in which the “common channel” is allocated to each terminal Alternatively, if either one is not constant, the actually allocated bandwidth and the integrated value of the transmission capacity are stored in each record of the bandwidth register 31 instead of the count value w. Is also good.
- a feature of the present embodiment lies in a procedure of processing in which a “specific terminal” is specified by the processor 44 provided in the radio base station 40.
- a specific storage area of the main memory (or external storage) of the processor 44 stores, as shown in FIG. 3, ⁇ each of the terminals 50 -1 to 50 -N, and It is configured as a set of records in which the integrated value is stored, and the retransmission count register 32 is arranged.
- the processor 44 responds to the “retransmission request” transmitted from the specific terminal 50 -t. Each time the “previously transmitted packet” is retransmitted, the total number of retransmissions stored in the record corresponding to the specific terminal 5 O-t in the retransmission count register 32 record Increment the value.
- the processor 44 specifies a terminal satisfying any one of the following conditions as a specific terminal 50-t.
- the “common channel” is preferentially allocated to terminals with a small number of retransmissions performed in advance.
- the throughput of the “common channel” can be increased as compared with the conventional example in which a specific terminal is specified regardless of the number of retransmissions.
- each record of the retransmission count register 32 stores an integrated value of the number of retransmissions performed earlier for each terminal.
- the present invention is not limited to such a configuration.
- only the “number of times retransmission is performed” or “the retransmission Binary information whose value is “1” only when the retransmission is performed ” may be stored in each record of the retransmission count register 32.
- a “common channel” is preferentially assigned to a terminal having a small number of retransmissions.
- the present invention is not limited to such a configuration.
- the higher the failure rate evaluated as the average value of the number of retransmissions the more preferentially the “common channel” is allocated, and the above-described throughput is achieved. Average service quality provided to terminals Unification may be achieved.
- a feature of the present embodiment lies in a procedure of processing in which a “specific terminal” is specified by the processor 44 provided in the radio base station 40.
- a specific storage area of the main memory (or external storage) of the processor 44 includes, as shown in FIG. 4, "a terminal 50-1 to 50 -N individually, and a waiting time described later.
- a standby time register 33 " which is configured as a set of records in which integrated values are stored, is arranged.
- the processor 44 monitors the time required for the “common channel” to be allocated substantially, and waits. Among the records in the time register 33, the time is added to the integrated value stored in the record corresponding to the specific terminal 5O-t.
- the processor 44 specifies a terminal satisfying any one of the following conditions as the specific terminal 5O-t.
- the “common channel” is preferentially assigned to a terminal that takes a long time to allocate the “common channel” in advance.
- a feature of the present embodiment lies in a procedure of a process in which a “specific terminal” is specified by the processor 44 provided in the wireless base station 40.
- a specific storage area of the main memory (or the external memory) of the processor 44 stores, as shown in FIG. 5, "the integrated value of the priority individually corresponding to the terminals 50-1 to 50-N and described later.
- the priority register 34 which is configured as a set of records to be stored, is arranged.
- the processor 44 sets a priority (in this case, the priority to which the “common channel” should be allocated to each terminal including the specific terminal 5 Ot). , For the sake of simplicity, it is assumed that the order is such that it can be specified as a specific terminal 50-t.), And among the records of the priority register 34, the integration stored in the record corresponding to each of these terminals Integrate these priorities into the value.
- the processor 44 specifies a terminal satisfying any one of the following conditions as the specific terminal 5O-t.
- the “common channel” is preferentially assigned to the terminal that was assigned a lower priority to the “common channel” earlier.
- bucket transmission service is provided in parallel based on HSDPA
- the fairness of the terminal to be improved is improved compared to the conventional example in which a specific terminal is specified regardless of the order or priority.
- a “common channel” is allocated in advance for each terminal, or an integrated value of the priority that should have been allocated is stored.
- each record of the priority register 34 may store, for example, any of the following.
- a feature of the present embodiment lies in a procedure of a process in which a “specific terminal” is specified by the processor 44 provided in the wireless base station 40.
- a specific storage area of the main storage (or external storage) of the processor 44 stores, as shown in FIG. 6, "a terminal 50-1 to 50 -N, and a transmission quality described later.
- the transmission quality register 35 is configured as a set of records in which the integrated values are stored.
- the processor 44 corresponds to the terminal identifier included in the mobile station information in the record of the transmission quality register 35.
- the value of the record is updated to the average value of the record to be transmitted and the transmission quality included in the mobile station information.
- the processor 44 specifies a terminal satisfying any one of the following conditions as the specific terminal 5O-t.
- the transmission quality e stored in the corresponding record of the mobile station information register 61 corresponds to the transmission quality register 35.
- Terminal corresponding to the record whose product ( e ⁇ f (Q)) with the increasing function f (Q) of the average value Q stored in the record
- the “common channel” is preferentially allocated to a terminal having a high average transmission quality reported as mobile station information.
- the fairness is higher than in the conventional example where a specific terminal is specified regardless of such an average value of transmission quality.
- the sound output of the “common channel” can be improved without significantly impairing the performance.
- the “common channel” is preferentially assigned to a terminal having a high average transmission quality reported as mobile station information.
- a “common channel” is preferentially allocated to a terminal having a low average transmission quality notified as mobile station information, Improving “fairness” may be achieved.
- a feature of the present embodiment lies in a procedure of a process in which a “specific terminal” is specified by the processor 44 provided in the wireless base station 40.
- the specific storage area of the main storage (or external storage) of the processor 44 includes, as shown in FIG. 7, "a terminal 50-1 to 50-N individually, and the following fields are included.
- a transmission quality distribution register 36 "configured as a set of records to be transmitted is arranged. -Stores the number of times that the transmission quality range included in the above-mentioned mobile station information corresponds to each of a plurality of n partial ranges that are divided and the transmission quality belonging to the corresponding partial range is identified. 1 "-" frequency n "field
- the processor 44 performs the following processing every time mobile station information is received from a terminal to which a packet transmission service is to be provided based on the HSDA.
- the processor 44 specifies a terminal satisfying any one of the following conditions as the specific terminal 5O-t.
- the “common channel” is preferentially allocated to terminals with small variations in transmission quality reported as mobile station information.
- these functions may be any function or any combination of functions as long as fairness and throughput conform to the preferred modes.
- the transmission quality of both the uplink and the downlink is determined by dedicated hardware / software.
- transmission channel coding method error correction coding method
- the present invention is not limited to such a configuration.
- a plurality of functions adapted to system configuration, traffic distribution, and other events (for example, identified in the process of channel control, call setup, and supervisory control) are used. Similar weighting may be performed on the product to optimize the assignment of “common channels”.
- the bandwidth register 31, retransmission count register 32, standby time register 33, priority register 34, transmission quality register 35, transmission quality distribution register 36, mobile station information register The values of the records in the statistic information register 62 and the statistical information register 62 are sequentially accumulated or updated in chronological order.
- the present invention is not limited to such a configuration.
- a moving average method is applied at a desired frequency, or an exponential smoothing method based on weights updated to small values in ascending time series is applied. By doing so, appropriate scaling / initialization may be achieved.
- a single channel to which a common spreading code is assigned based on the CDMA method is referred to as a “common channel” as described above. Are sequentially assigned to terminals.
- the present invention can be applied to a wireless transmission system to which any multiple access system other than the above-described CDMA is applied, and the “common channel” may be configured as a set of a plurality of channels.
- the terminal to which the band is to be allocated is compared with the conventional example in which the terminal to which the band is allocated has been selected regardless of the already allocated band as a result. Bandwidth is allocated to terminals fairly.
- the fairness of each terminal is enhanced, and the minimum QoS of these terminals is assured with high accuracy.
- the integrated value serving as a criterion for selecting a terminal to which a band is to be allocated is initialized by repeating the previously obtained integrated value. And the range of the integrated value is maintained in a desired finite range.
- the second and eleventh transmission band allocating devices according to the present invention are different from the conventional example in which a terminal to which a band is to be allocated is selected regardless of the number of retransmissions performed in advance. Therefore, the throughput of the band, which is a finite resource, is increased and maintained high.
- the terminal to which the band is to be allocated is finite compared to the case where the terminal to which the band is to be allocated is selected based on the number of retransmissions performed earlier.
- the throughput of the bandwidth, which is the resource of the network, is further increased and maintained high.
- the terminal to which the band is to be allocated is simply the number of retransmissions performed in advance, or The frequency of retransmission in the band allocated to the terminal is reduced as compared with the case where selection is made based on the integrated value of the number of times.
- the seventh and sixteenth transmission band allocating devices provide a transmission band with a higher transmission quality than a terminal to which a band is to be allocated irrespective of the uplink transmission quality. Deterioration of service quality and reduction of throughput due to wide fluctuations are mitigated. 'Furthermore, in the eighth and seventeenth transmission band allocating devices according to the present invention, the fairness of the terminal is compared with a case where the terminal to which the band is to be allocated is selected irrespective of the uplink transmission quality. Throughput can be improved without significant loss of performance.
- a terminal to which a band is to be allocated is assigned a higher transmission bandwidth than when the terminal is selected by merely referring to the uplink transmission quality. Even when the quality temporarily or widely fluctuates, the fairness of the terminals is ensured and the throughput is improved.
- the fairness of the terminals is higher than when the terminals to which the bands are to be allocated are selected irrespective of the uplink transmission quality. Will be maintained.
- the fairness of the terminal is ensured even when the transmission quality of the uplink temporarily or widely fluctuates.
- the twenty-first and twenty-second transmission band allocating devices according to the present invention, cost reduction, miniaturization, and improvement in reliability are achieved in addition to simplification of the configuration. Further, in the twenty-fourth transmission band allocating device according to the present invention, the average value obtained in advance is smoothed in the time series without being repeatedly initialized, and The range of the average value is maintained in a desired finite range.
- the throughput of the transmission band and the fairness of the terminals are kept high, and the running cost is reduced along with the improvement of the overall reliability and service quality. Is achieved.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004569560A JPWO2004084505A1 (ja) | 2003-03-18 | 2003-03-18 | 伝送帯域割り付け装置 |
| EP03710413A EP1608109A1 (en) | 2003-03-18 | 2003-03-18 | Transmission band assigning device |
| PCT/JP2003/003243 WO2004084505A1 (ja) | 2003-03-18 | 2003-03-18 | 伝送帯域割り付け装置 |
| US11/202,687 US20060007884A1 (en) | 2003-03-18 | 2005-08-12 | Transmission band allocating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2003/003243 WO2004084505A1 (ja) | 2003-03-18 | 2003-03-18 | 伝送帯域割り付け装置 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/202,687 Continuation US20060007884A1 (en) | 2003-03-18 | 2005-08-12 | Transmission band allocating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004084505A1 true WO2004084505A1 (ja) | 2004-09-30 |
Family
ID=33018138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/003243 Ceased WO2004084505A1 (ja) | 2003-03-18 | 2003-03-18 | 伝送帯域割り付け装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20060007884A1 (ja) |
| EP (1) | EP1608109A1 (ja) |
| JP (1) | JPWO2004084505A1 (ja) |
| WO (1) | WO2004084505A1 (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007111010A1 (ja) * | 2006-03-29 | 2007-10-04 | Hitachi, Ltd. | 広帯域無線通信におけるリソース割り当て方法、基地局装置および端末装置 |
| WO2009041029A1 (ja) * | 2007-09-25 | 2009-04-02 | Panasonic Corporation | 無線通信装置および応答信号拡散方法 |
| JP2010239319A (ja) * | 2009-03-30 | 2010-10-21 | Fujitsu Ltd | 通信システム、デコーダ、エンコーダ及び通信方法 |
| JP2014116928A (ja) * | 2012-10-12 | 2014-06-26 | Toshiba Corp | セル間干渉緩和 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4454320B2 (ja) * | 2004-01-09 | 2010-04-21 | 富士通株式会社 | 伝送装置、伝送制御プログラム、及び伝送方法 |
| US8103481B2 (en) * | 2006-12-12 | 2012-01-24 | International Business Machines Corporation | Processing irregularly occuring data events in real time |
| US8064333B2 (en) * | 2008-03-11 | 2011-11-22 | Nec Laboratories America, Inc. | Systems and methods for adaptive hybrid automatic retransmission requests |
| KR20140070987A (ko) * | 2012-12-03 | 2014-06-11 | 한국전자통신연구원 | 다중 대역을 이용하는 무선 링크 방법 및 시스템 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09186646A (ja) * | 1995-10-05 | 1997-07-15 | Lucent Technol Inc | 符号分割多元接続システム |
| JP2002111733A (ja) * | 2000-10-02 | 2002-04-12 | Ntt Docomo Inc | 無線リソース割当方法及び通信装置 |
| JP2002521886A (ja) * | 1998-07-16 | 2002-07-16 | サムスン エレクトロニクス カンパニー リミテッド | 移動通信システムのパケットデータ処理システム及び方法 |
| JP2002300629A (ja) * | 2001-03-30 | 2002-10-11 | Nippon Telegr & Teleph Corp <Ntt> | トラヒック制御方法および基地局装置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69433098T2 (de) * | 1993-02-15 | 2004-03-25 | Honda Giken Kogyo K.K. | Vorrichtung zur Übertragung von Daten |
| US6334219B1 (en) * | 1994-09-26 | 2001-12-25 | Adc Telecommunications Inc. | Channel selection for a hybrid fiber coax network |
| KR100417824B1 (ko) * | 1999-12-23 | 2004-02-05 | 엘지전자 주식회사 | 코드분할다중접속 패킷 데이터 시스템에서의 채널 동적 할당 방법 |
| US6947490B1 (en) * | 2000-06-22 | 2005-09-20 | Nortel Networks Limited | Cellular radio communications system |
| US7068683B1 (en) * | 2000-10-25 | 2006-06-27 | Qualcomm, Incorporated | Method and apparatus for high rate packet data and low delay data transmissions |
| US6973098B1 (en) * | 2000-10-25 | 2005-12-06 | Qualcomm, Incorporated | Method and apparatus for determining a data rate in a high rate packet data wireless communications system |
| JP3769529B2 (ja) * | 2001-11-02 | 2006-04-26 | 株式会社エヌ・ティ・ティ・ドコモ | 制御システム、制御方法及びこれらに用いて好適な無線制御装置 |
| JP4429132B2 (ja) * | 2004-09-30 | 2010-03-10 | 富士通株式会社 | 移動無線通信システム |
-
2003
- 2003-03-18 EP EP03710413A patent/EP1608109A1/en not_active Withdrawn
- 2003-03-18 JP JP2004569560A patent/JPWO2004084505A1/ja active Pending
- 2003-03-18 WO PCT/JP2003/003243 patent/WO2004084505A1/ja not_active Ceased
-
2005
- 2005-08-12 US US11/202,687 patent/US20060007884A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09186646A (ja) * | 1995-10-05 | 1997-07-15 | Lucent Technol Inc | 符号分割多元接続システム |
| JP2002521886A (ja) * | 1998-07-16 | 2002-07-16 | サムスン エレクトロニクス カンパニー リミテッド | 移動通信システムのパケットデータ処理システム及び方法 |
| JP2002111733A (ja) * | 2000-10-02 | 2002-04-12 | Ntt Docomo Inc | 無線リソース割当方法及び通信装置 |
| JP2002300629A (ja) * | 2001-03-30 | 2002-10-11 | Nippon Telegr & Teleph Corp <Ntt> | トラヒック制御方法および基地局装置 |
Non-Patent Citations (1)
| Title |
|---|
| YOSHIAKI OFUJI ET AL.: "RCS2001-291 kudari rink kosoku packet access ni okeru kaku u ser no throghput ni chakumoku shita scheduling-ho no tokusei hikaku", DENSHI JOHO TSUSHIN GAKKAI GIJUTSU KENKYU HOKOKU, vol. 101, no. 683, 7 March 2002 (2002-03-07), pages 51 - 58, XP002904088 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007111010A1 (ja) * | 2006-03-29 | 2007-10-04 | Hitachi, Ltd. | 広帯域無線通信におけるリソース割り当て方法、基地局装置および端末装置 |
| US8290001B2 (en) | 2006-03-29 | 2012-10-16 | Hitachi, Ltd. | Broadband wireless communication resource assigning method, base station apparatus and terminal apparatus |
| US8787321B2 (en) | 2006-03-29 | 2014-07-22 | Hitachi, Ltd. | Broadband wireless communication resource assigning method, base station apparatus and terminal apparatus |
| US9143269B2 (en) | 2006-03-29 | 2015-09-22 | Hitachi, Ltd. | Broadband wireless communication resource assigning method, base station apparatus and terminal apparatus |
| WO2009041029A1 (ja) * | 2007-09-25 | 2009-04-02 | Panasonic Corporation | 無線通信装置および応答信号拡散方法 |
| JP5127836B2 (ja) * | 2007-09-25 | 2013-01-23 | パナソニック株式会社 | 無線通信装置および応答信号拡散方法 |
| US8422532B2 (en) | 2007-09-25 | 2013-04-16 | Panasonic Corporation | Radio communication device and response signal spreading method |
| JP2010239319A (ja) * | 2009-03-30 | 2010-10-21 | Fujitsu Ltd | 通信システム、デコーダ、エンコーダ及び通信方法 |
| JP2014116928A (ja) * | 2012-10-12 | 2014-06-26 | Toshiba Corp | セル間干渉緩和 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20060007884A1 (en) | 2006-01-12 |
| JPWO2004084505A1 (ja) | 2006-06-29 |
| EP1608109A1 (en) | 2005-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11678272B2 (en) | System and method for joint power and resource allocation using reinforcement learning | |
| EP1356618B1 (en) | Dynamic bandwidth allocation for multiple access communication using session queues | |
| US6879561B1 (en) | Method and system for wireless packet scheduling with per packet QoS support and link adaptation | |
| US6393012B1 (en) | System for allocating resources in a communication system | |
| US7965726B2 (en) | Method and apparatus to facilitate real-time packet scheduling in a wireless communications system | |
| EP1605641A1 (en) | Mapping of shared physical channels depending on the quality of service class | |
| EP1605642A1 (en) | Service dependent shared physical channel mapping | |
| KR101384910B1 (ko) | 데이터 블록 스케줄링 방법과 장치 및 이를 포함하는 집적회로 | |
| WO2004084505A1 (ja) | 伝送帯域割り付け装置 | |
| JP3508562B2 (ja) | 通信帯域割当方法 | |
| WO2007053758A1 (en) | Efficient scheduling of dowlink packet data traffic in wireless data networks | |
| JP2005536129A (ja) | 共用通信チャネルのスケジューラ | |
| KR20070056168A (ko) | 데이터 전송 방법, 시스템, 기지국, 가입자국, 데이터 처리장치, 컴퓨터 프로그램 배포 매체 및 기저대역 모듈 | |
| KR100606898B1 (ko) | 패킷 스케줄링을 위한 자원 활용 방법과, 그를 이용하는시스템 | |
| Park et al. | Bidirectional bandwidth allocation for TCP performance enhancement in mobile WiMAX networks | |
| Taghipoor et al. | Scheduling Algorithm and Bandwidth Allocation in WiMAX | |
| VARGA | ITERATIVE MULTI-USER SCHEDULING ALGORITHM WITH JOINT RESOURCE ALLOCATION AND COOPERATIVE-LINK ADAPTATION | |
| HK1062238B (en) | Dynamic bandwidth allocation for multiple access communication using session queues | |
| HK1151931B (en) | Dynamic bandwidth allocation for multiple access communication using session queues |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 2004569560 Country of ref document: JP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2003710413 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 11202687 Country of ref document: US |
|
| WWP | Wipo information: published in national office |
Ref document number: 2003710413 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 11202687 Country of ref document: US |
|
| WWW | Wipo information: withdrawn in national office |
Ref document number: 2003710413 Country of ref document: EP |