WO2004086804A1 - 通信端末装置及び無線通信方法 - Google Patents
通信端末装置及び無線通信方法 Download PDFInfo
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- WO2004086804A1 WO2004086804A1 PCT/JP2004/004035 JP2004004035W WO2004086804A1 WO 2004086804 A1 WO2004086804 A1 WO 2004086804A1 JP 2004004035 W JP2004004035 W JP 2004004035W WO 2004086804 A1 WO2004086804 A1 WO 2004086804A1
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- transmission
- communication terminal
- packet
- base station
- transmission method
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- 238000004891 communication Methods 0.000 title claims abstract description 141
- 238000000034 method Methods 0.000 title claims abstract description 107
- 230000005540 biological transmission Effects 0.000 claims abstract description 238
- 238000012546 transfer Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 abstract description 10
- 238000004364 calculation method Methods 0.000 abstract description 9
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 22
- 230000003321 amplification Effects 0.000 description 13
- 238000003199 nucleic acid amplification method Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 9
- 238000012937 correction Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 5
- 108010003272 Hyaluronate lyase Proteins 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 101000741965 Homo sapiens Inactive tyrosine-protein kinase PRAG1 Proteins 0.000 description 2
- 102100038659 Inactive tyrosine-protein kinase PRAG1 Human genes 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 241001147107 Chanos Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- 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
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1887—Scheduling and prioritising arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/286—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission during data packet transmission, e.g. high speed packet access [HSPA]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
Definitions
- the present invention relates to a communication terminal apparatus and a wireless communication method which are used in a wireless communication system which performs bucket transmission on an uplink.
- HSDPA High-Speed Downlink Packet Access
- the base station apparatus determines a communication terminal apparatus to which packet data is to be transmitted in predetermined time units and a transmission parameter of bucket data (generally called "scheduling").
- the scheduling is performed based on, for example, the amount of data that the base station apparatus transmits to the communication terminal apparatus, the allowable delay time, the communication quality, and the like.
- the buckett transmission technology in the uplink is currently being considered.
- the following two can be mentioned as the uplink packet transmission method.
- the base station similarly to the downlink, the base station performs scheduling and determines from among a plurality of communication terminals a communication terminal to which bucket transmission is permitted (Base-station Controlled Scheduled). Transmission: The following is called “the second packet transmission method”).
- scheduling information data transmission permission
- transmission parameters transmission rate
- the second is a transmission method in which the base station apparatus does not perform scheduling and each communication terminal apparatus transmits packet data to the base station apparatus at a predetermined transmission parameter (transmission rate) (Autonomous Transmission: hereinafter, “second Packet transmission method).
- the first packet transmission method may perform packet transmission at a high transmission rate if, for example, the increase in reception power allowed in the base station apparatus is concentrated and allocated to the communication terminal apparatus having a large amount of data. It has the advantage of being able to However, on the other hand, in the first packet transmission method, when the communication terminal apparatus is at the cell edge and is performing soft handover (SHO), the base station does not schedule the communication terminal apparatus. An unexpected increase in reception power occurs in the device, and there is a disadvantage that reception quality is deteriorated in other communication terminals.
- SHO soft handover
- the second packet transmission method has an advantage of being able to transmit data with low delay, since it is not necessary to schedule in the base station apparatus.
- the second packet transmission method has the disadvantage that it can always transmit only at a low transmission rate in order to suppress interference with other cells.
- Non-Patent Document 1 when the communication terminal is in the handover state, the second packet transmission method is used to suppress interference with other cells, and in the normal case (when not in the handover state), the first method is used. It is described that the buckett transmission method is used.
- the communication terminal device transmits a unique signal for informing the base station device of the bucket transmission method.
- An object of the present invention is to notify a packet transmission method without transmitting a signal unique to a base station apparatus, without reducing the capacity of the system, and without increasing the power consumption of the communication terminal apparatus.
- a communication terminal apparatus and a wireless communication method that can
- the purpose of this method is to focus on the fact that the communication terminal apparatus transmits scheduling request information to the base station apparatus in uplink packet transmission, and the communication terminal apparatus performs packet transmission without performing scheduling by the base station apparatus. If the user selects "1", the selection result is achieved by notifying the base station apparatus of stopping transmission of scheduling request information or controlling the content of scheduling ring request information.
- FIG. 1 is a block diagram showing a configuration of a base station apparatus according to Embodiment 1 of the present invention
- FIG. 2 is a block diagram showing a configuration of a communication terminal apparatus according to Embodiment 1 of the present invention.
- 3 is a view showing an example of selection of a bucket transmission method of the communication terminal device according to Embodiment 1 of the present invention;
- FIG. 4 is a diagram showing the relationship between the packet transmission method according to Embodiment 1 of the present invention and transmission / reception of S R Q information;
- FIG. 5 shows an example of the scheduling unit of the base station apparatus according to Embodiment 1 of the present invention. Block diagram showing part configuration,
- FIG. 6 is a diagram showing an example of a table held in the S R Q information generation unit of the communication terminal device according to the second embodiment of the present invention.
- FIG. 7 is a block diagram showing an internal configuration of a scheduling unit of a base station apparatus according to Embodiment 2 of the present invention.
- SRQ information information for requesting a ring
- the SRQ information is information indicating the amount of data required by the communication terminal apparatus, the transmission rate, or the available transmission power.
- a reception radio unit (RE-RF) 102 converts a non-line frequency reception signal received by the antenna 101 into a baseband digital signal, and the despreading unit (DES) 103 and the despreading unit (DES) 121 Output to
- Despreading section 103 is prepared for the number of communication terminals that perform wireless communication, performs despreading processing on the reception spanned signal, extracts the signal of the individual channel transmitted from each communication terminal, and demodulates it. Output to department (DEM) 104. In addition, the despreading unit 103 outputs, to the SIR measurement unit (SIR-MEA) 106, information indicating the desired wave power obtained from the delay profile created during the despreading.
- SIR-MEA SIR measurement unit
- Demodulation section 104 is prepared as many as the number of communication terminal apparatuses performing wireless communication, performs demodulation processing on the output signal of despreading section 103, and demodulates the demodulated signal. Output to the
- the channel decoding unit 105 performs decoding processing such as error correction decoding on the output signal of the demodulation unit 104, and receives data, a transmission power control command for downlink (hereinafter referred to as "DL-TPC"), and the like. retrieve SRQ information.
- the received data is sent to the upper control station, D L-T P C is sent to the transmission power control unit (POWER-CO N) 164, and the S RQ information is sent to the scheduling unit 108.
- the SRQ information is information indicating a transmission rate of transmission packet data desired by the communication terminal apparatus, and is represented by, for example, l to n (n is a natural number of 2 or more).
- the transmission rate is determined based on the amount of packet data stored in the communication terminal and the residence time of the packet data and the transmission power available for the transmission of bucket data at the communication terminal. Further, in the present embodiment, the SRQ information is not transmitted from the communication terminal apparatus that has selected the second packet transmission method.
- the SIR measurement unit 106 is prepared for the number of communication terminals that perform wireless communication, calculates interference wave power from the dispersion value of the desired wave power, and calculates the ratio of desired wave power to interference wave power (hereinafter referred to as “SIR And outputs information indicating the SIR to the TPC generation unit (TPC-GEN) 107 and the scheduling unit 108.
- T PC generation section 107 is prepared for the number of communication terminal apparatuses performing wireless communication, and transmission for uplink which instructs increase / decrease of transmission power of uplink according to magnitude relation between reception SIR of target line and target SIR.
- a power control command (hereinafter, referred to as rUL-TPCj) is generated, and UL-TPC is output to the channel coding unit 161.
- Scheduling section 108 determines a communication terminal apparatus that permits transmission of bucketed data based on the SRQ information and SIR from each communication terminal apparatus, and determines the parameters at the time of packet data transmission (coding rate of error correction coding, Determine the number of modulation levels, diffusion rate, transmission power, etc.) (scheduling).
- scheduling section 108 sends information (hereinafter referred to as "SAL information") indicating the result of scheduling to channel coding section 161, and information indicating transmission parameters is despreading section 121 and demodulation section (DEM) 122.
- channel decoding unit 1 2 Output to 3
- the base station apparatus 100 always transmits SAL information to a communication terminal apparatus that permits transmission of packet data, but may not transmit to other communication terminal apparatuses. Details of the processing of the scheduling unit 108 will be described later.
- Despreading section 1 2 1 2 performs despreading processing on the reception baseband signal with the spreading factor indicated in the transmission parameter information from scheduling section 1 0 8, and transmits the buckett signal transmitted from the communication terminal apparatus Take it out and output it to the demodulator 12 2.
- the demodulation unit 1 2 2 2 demodulates the buckett signal output from the despreading unit 1 2 1 with the modulation multiple number indicated in the transmission parameter information from the scheduling unit 1 0 8 The signal is output to channel decoding unit 1 2 3.
- the channel decoding unit 1 2 3 3 performs decoding processing such as error correction decoding on the demodulated signal output from the demodulation unit 1 2 2 2 at the coding rate indicated in the transmission parameter information from the scheduling unit 1 0 8 Done, take out the received bucket data and output it to the error detection unit 1 2 4.
- the error detection unit 1 2 4 performs error detection on the received packet data output from the channel decoding unit 1 2 3. Then, if no error is detected, the error detection unit 124 outputs the received packet data to the upper station, and also outputs an ACK signal indicating that the demodulation has been correctly performed to the channel coding unit 161. On the other hand, when an error is detected, the error detection unit 1 2 4 4 outputs a NACK signal indicating that the demodulation was not correctly performed to the channel coding unit 1 6 1.
- the channel coding section 1 6 1 is prepared as many as the number of communication terminals that perform wireless communication, and transmits pilot data (PL), ACK / NA CK UL UL— TPC to the transmission data to be transmitted on individual channels to each communication terminal.
- the transmission data includes information indicating system load (hereinafter referred to as “SYL information”) in a higher-level device such as a radio network controller, and information indicating whether or not the soft handover is in progress (hereinafter referred to as “SHO information”).
- SYL information information indicating system load
- SHO information information indicating whether or not the soft handover is in progress
- Base station equipment only handles transmission data I do not know these information because I do not recognize the
- SYL information is generated from system load in at least one base station apparatus, and as an index indicating system load, (1) sum of received power and thermal noise power in base station apparatus, (2 ) The number of communication terminals in communication, (3) Sum of transmission rates in use, and the like.
- the modulation units 162 are prepared for the number of communication terminals that perform wireless communication, perform modulation processing on the output signal of the channel coding unit 161, and output the modulation signal to the spreading unit (SPR) 163.
- SPR spreading unit
- Spreading section 163 is prepared for the number of communication terminal apparatuses that perform wireless communication, performs spreading processing on the output signal of modulation section 162, and outputs the result to amplification section 165.
- the transmission power control unit 164 is prepared as many as the number of communication terminals that perform wireless communication, 0 _ According to O, the amplification amount of the heel width part 165 is controlled. As many amplification units 165 as communication terminal apparatuses performing radio communication are prepared. The transmission power of the output signal of spreading unit 163 is amplified according to the control of transmission power control unit 164, and the amplified signal is transmitted. Output to the unit (TR-RF) 166.
- the transmission radio unit 166 up-comps the output signal of the amplification unit 165 to a frequency of no spring and transmits the signal from the antenna 101 by radio. '
- a reception radio unit (RE-RF) 202 converts a radio frequency reception signal received by the antenna 201 into a baseband digital signal and outputs the signal to a despreading unit (DES) 203.
- RE-RF reception radio unit
- DES despreading unit
- Despreading section 203 performs despreading processing on the received baseband signal, extracts the signal of the individual channel transmitted from the base station apparatus, and outputs the signal to demodulation section (DEM) 204.
- the despreading unit 203 transmits information indicating the desired wave power obtained from the delay profile created during despreading to the SIR measurement unit (SIR-MEA) 2. Output to 06. '
- Demodulation section 204 demodulates the output signal of despreading section 203 and outputs the demodulated signal to channel decoding section 205.
- the channel decoding unit 205 performs decoding processing such as error correction decoding on the output signal of the demodulation unit 204, and receives the received data, 31 information, 111 ⁇ _. ⁇ and 01: ⁇ Take out the ⁇ .
- SHO information and SYL information are extracted from the received data.
- SAL information is sent to the transmission parameter setting unit 241
- UL-TPC is sent to the transmission power control unit (POWER-CON) 228, ACK / NACK is sent to the buffer 242, and SHO information and S YL information are transmitted. It is sent to the method selection unit 223.
- the SIR measurement unit 206 calculates interference wave power from the dispersion value of the desired wave power, calculates SIR from the desired wave power and the interference wave power, and outputs a signal indicating the SIR to the TPC generation unit (TPC-GEN) 207 Output to
- TPC generation section 207 generates DL-TPC instructing increase / decrease of transmission power of downlink according to magnitude relation between reception SIR of downlink and target SIR, and outputs DL-TPC to channel recorder 225 Do.
- the data amount measurement unit (DATA-MEA) 221 measures the amount of data in the buffer 242 described later and the residence time of the data, and outputs the measurement result to the SRQ information generation unit (SRQ-GEN) 224. In addition, the data amount measuring unit 221 determines whether the data amount is equal to or more than a predetermined threshold value and whether or not the residence time of the data is equal to or more than a predetermined threshold value. Output to section 223.
- the transmission power calculation unit (POWER-C ⁇ N) 222 subtracts the transmission power of all the signals transmitted in the transmission radio unit (TR-RF) 248 described later from the maximum value of the transmission power determined in advance. Then, it calculates transmission power that can be used to transmit bucketed data, and outputs the calculation result to the SRQ information generation unit 224. Also, The transmission power calculation unit 22 2 determines whether or not the transmission power available for the transmission of the bucket data is equal to or more than a predetermined threshold, and outputs information indicating the determination result to the transmission method selection unit 2 2 3 . In the calculation of usable transmission power, the power of packet data and the power of Z or SRQ information should be taken into consideration. Z not taken into consideration can be determined appropriately according to the system.
- the transmission method selection unit 223 is based on at least one of the SHO information, the SYL information, the determination result of the data amount measurement unit 221, and the determination result of the transmission power calculation unit 222, the first bucket transfer method Alternatively, one of the second bucket transmission methods is selected, and information indicating the selected bucket transmission method is output to the SRQ information generation unit 224 and the transmission parameter setting unit 214.
- the first packet transmission method and the second packet transmission method may be realized as different operations in one algorithm. For example, the difference may be whether the base station schedules or not in one algorithm. The specific processing contents of the transmission method selection unit 2 2 3 will be described later.
- the SRQ information generation unit 2 24 calculates the amount of data measured by the data amount measurement unit 2 2 1 and Z or its residence time, transmission power calculation.
- the SRQ information is generated based on the transmission power available for the transmission of the bucket data calculated by the part 22 2, and the generated SRQ information is output to the channel coding part 2 25.
- the SRQ information generation unit 224 does not generate SRQ information.
- the CHANO RECORDING UNIT 22 5 multiplexes DL-TPC and SRQ information, performs error correction coding processing on the multiplexed data, and modulates the signal obtained by the coding processing (MO (Modification Unit (MO)).
- MO Modification Unit
- the modulation unit 226 modulates the output signal of the channel coding unit 225 and outputs the modulated signal to the spreading unit (SPR) 2 2 7.
- the spreading units 227 are prepared for the number of communication terminal apparatuses that perform wireless communication, perform spreading processing on the output signal of the modulation unit 226, and output the result to the amplification unit 292.
- the transmission power control unit 228 controls the amplification amount of the amplification unit 229 in accordance with UL-TPC. Under control of transmission power control section 228, amplification section 229 amplifies the transmission power of the output signal of spreading section 227 and outputs the amplified signal to transmission radio section 248.
- the transmission parameter setting unit 241 transmits the transmission parameter indicated by the SAL information to the buffer 242, the channel coding unit 243, the modulation unit (MOD) 244, the diffusion unit (SPR) 245, Output to transmission power control unit (POWER— CON) 246.
- the communication terminal apparatus 200 transmits bucket data based on the scheduling of the base station apparatus 100.
- the transmission parameter setting unit 241 sets predetermined transmission parameters to the buffer 242, the channel coding unit 243, the modulation unit 244, the spreading unit 245, and the transmission power control unit. Output to 246.
- the communication terminal apparatus 200 transmits packet data regardless of the scheduling of the base station apparatus 100.
- the transmission parameter 241 may always set the parameter indicated by the SAL information, and if transmission is possible even if the amount of data in the buffer is lower than the specified transmission rate, SAL information in consideration of other factors, etc. You may set the transmission power and transmission rate lower than the parameters indicated by.
- the transmission parameter at the time of selecting the second packet transmission method may be a fixed value at all times, or may be instructed from the upper station at the start of communication or during communication. Or, it may be determined based on SAL information from the base station apparatus. For example, keep using the last received SAL information, use the lowest rate SAL information in a predetermined period, average the transmission rate determined from the SAL information in a predetermined period, or after receiving the SAL information Reduce the transmission rate according to time, etc.
- the buffer 242 temporarily accumulates transmission packet data, and outputs packet data instructed by the transmission parameter setting unit 241 to the channel coding unit 243 at a designated time. At this time, if A CK is input, buffer 24 2 discards the sent buckett data and outputs new bucketed data. On the other hand, when NAK is input, the buffer 2 4 2 re-outputs the previously transmitted packet data.
- the channel coding unit 2 4 3 performs error correction coding processing on the bucketed data at the coding rate instructed by the transmission parameter setting unit 2 4 1, and modulates the packet signal obtained by the coding processing. 4 Output to 4
- the modulation unit 2 4 4 performs modulation processing on the buckett signal output from the channel coding unit 2 4 3 with the modulation multi-value number instructed by the transmission parameter setting unit 2 4 1, and modulates the modulated buckett signal Is output to the diffusion unit 2 4 5.
- Spreading section 2 4 5 performs spreading processing on the buckett signal output from modulation section 2 4 4 with the spreading factor instructed by transmission parameter setting section 2 4 1, and amplifies the spread-out buckett signal 2 4 Output to 7
- the transmission power control unit 2 46 controls the amplification amount of the amplification unit 2 4 7 in accordance with the instruction of the transmission parameter setting unit 2 4 1.
- the amplification unit 247 amplifies the transmission power of the buckett signal output from the spreading unit 24 under the control of the transmission power control unit 2 46, and outputs the amplified signal to the transmission radio unit 2 4 8 Do.
- the transmission radio unit 2 4 8 up-compensates the output signal of the amplification unit 2 4 7 and amplification unit 2 2 9 to a radio frequency, and transmits the radio signal from the antenna 2 0 1.
- the transmission method selection unit 223 is based on at least one of the SHO information, the SYL information, the determination result of the data amount measurement unit 221, and the determination result of the transmission power calculation unit 222, the first performance is selected.
- the second packet transmission method is selected to suppress the increase.
- the system load of the communication cell is specified based on the SYL information It is determined whether or not it is larger than the value, and if the system load is larger than a predetermined value, the second packet transmission method is selected in order to suppress the reception power in the cell base station apparatus from exceeding the allowable value.
- Data amount measuring unit Judges the data amount based on the judgment result of 2 1, and the data amount in buffer 2 4 2 is smaller than a predetermined value or Z and the residence time is shorter than a predetermined value. In this case, the second bucket transmission method is selected to increase the throughput of the entire system since it is not necessary to transmit packet data at a high transmission rate.
- the size of the transmission power available for the transmission of the bucket data is judged, and the transmission rate is high when the margin of the transmission power is equal to or less than a predetermined value. Select the second method of transmission of buckets because the bucketed data can not be sent at.
- the transmission method selection unit 223 can also select a packet transmission method by combining the judgment criteria of (1) to (4) above. For example, when the system load of the cell of the base station apparatus with which the communication terminal apparatus is communicating is small V, even if the communication terminal apparatus is in the handover state, it can transmit bucketed data at a high transmission rate. As shown in FIG. 3, the second packet transmission method is selected so that the SRQ information is not transmitted only when the communication terminal is in the handover state and the system load is larger than a predetermined value. Yes, etc.
- the SRQ information is transmitted to the base station apparatus 100 when the communication terminal apparatus 200 selects the first bucket transmission method, and the communication terminal apparatus 200 is transmitted.
- the second packet transmission method is selected, it is not transmitted to the base station device 1 0 0.
- FIG. 5 is a block diagram showing an internal configuration of scheduling section 108.
- the scheduling unit 1 0 8 mainly comprises an S R Q information determination unit 3 0 1, a transmission terminal determination unit 3 0 2, and a transmission parameter determination unit 3 0 3.
- the SRQ information determination unit 301 determines whether or not the SRQ information has been transmitted from each communication terminal apparatus within a predetermined time, and the SRQ information whose transmission has been confirmed and which has been transmitted is determined.
- the communication terminal apparatus is associated with the communication terminal apparatus and output to the transmission terminal determination unit 302.
- the transmitting terminal determination unit 302 determines, among the communication terminal devices that have transmitted the S R Q information, the communication terminal device to which the transmission of the bucket data is permitted based on the S R Q information and the S I R information. As a method of determination, for example, the transmission power margin of each communication terminal apparatus is read from the SRQ information, a transmission date that can be received without error based on this and SIR is determined for each communication terminal apparatus, and the communication terminal with the highest transmission rate is obtained. It is possible to allow the device to transmit packet data.
- the transmission parameter determination unit 3 0 3 transmits the packet data transmission parameters (error correction coding coding rate, modulation multi-level number, and so on) based on the SRQ information from the communication terminal apparatus permitted to transmit the bucket data.
- a channel coding unit corresponding to a communication terminal device which determines the spreading factor, transmission power, etc.) and is permitted to transmit packet data.
- the SRQ information is transmitted to the base station apparatus, and the second packet transmission method is performed.
- S execution of SRQ information transmission is performed so that SRQ information is not transmitted to the base station device.
- the buckett transmission method is performed without transmitting a signal unique to the base station device. Can be informed.
- the second bucket transmission method is selected, the S R Q information is not transmitted to the base station apparatus, so the amount of interference given to the system can be reduced. Furthermore, since the transmission power of the communication terminal apparatus is reduced, the battery consumption can be suppressed.
- transmission of packet data is permitted when the communication terminal apparatus transmits packet data with predetermined transmission parameters without scheduling by the base station apparatus (second packet transmission method).
- the configurations of the base station apparatus and the communication terminal apparatus are as follows. This is the same as in FIG. 1 and FIG. 2 of the embodiment, only the internal configuration of the scheduling unit 108 of the base station apparatus and the operation of the SRQ information generation unit 214 of the communication terminal apparatus are different.
- the SRQ information generation unit 224 according to the present embodiment holds a table in which the amount of data in the buffer 214 as shown in FIG. 6, the available transmission power, and the SRQ information are related. .
- the usable transmission power is expressed in decibels (dB) as a ratio to the value calculated by the transmission power calculator 22 2.
- the SRQ information generation unit 214 when the first packet transmission method is selected, the SRQ information generation unit 214 generates SRQ information according to the table of FIG. For example, if the amount of data in the buffer 214 is 350 bits and the available transmission power is 3 dB, S R Q information “2” corresponding to these minimum values is generated.
- the S R Q information generator 2 24 is not permitted to transmit packet data! / / Generate S R Q information of specific value uniquely.
- specific values include a value indicating that the transmission rate that can be transmitted is the lowest, a value indicating that the amount of packet data in the buffer is the smallest (“0” in the case of FIG. 6), or SRQ Unused values ("7" in the case of Fig. 6) etc. can be considered as information.
- the scheduling unit 108 eliminates the need for the S R Q information determination unit 301 compared to the first embodiment.
- the transmission terminal determination unit 302 determines a communication terminal device that permits transmission of the bucket data based on the S R Q information and the S I R information among all the communication terminal devices in communication. In this case, transmission of packet data is not permitted to the communication terminal that has transmitted the S R Q information of a specific value.
- the communication terminal apparatus when the first bucket transmission method is selected, SRQ information according to the table is transmitted to the base station apparatus, and the second When the bucket transfer method is selected, transmission of packet data is not permitted to the base station apparatus, and the content of SRQ information is controlled to transmit SRQ information of a specific value.
- the present invention is not limited to this, based on pre-despreading power, de-spreading power, etc. Scheduling may be performed. Further, in the present invention, a plurality of communication terminals may be permitted to transmit at the same time by the base station.
- the bucket transmission may be performed when there is no data amount. You can also choose to stop. When stopping packet transmission, naturally, the communication terminal apparatus does not transmit SRQ information to the base station apparatus.
- execution / stop of transmission of scheduling request information is controlled by the bucket transfer method selected in the communication terminal device, or the content of scheduling request information is By controlling, it is possible to inform the packet transmission method without transmitting a signal unique to the base station apparatus.
- This specification is based on Japanese Patent Application No. 2003-084709 filed on Mar. 26, 2003. This content is included here.
- the present invention is suitable for use in a communication terminal apparatus used for a wireless communication system that performs bucket-to-point transmission in the uplink.
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Abstract
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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BRPI0407836 BRPI0407836A (pt) | 2003-03-26 | 2004-03-24 | aparelho terminal de comunicação e método de radiocomunicação |
US10/535,973 US20060079257A1 (en) | 2003-03-26 | 2004-03-24 | Communication terminal device and radio communication method |
EP20040723010 EP1565021A1 (en) | 2003-03-26 | 2004-03-24 | Communication terminal device and radio communication method |
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Application Number | Priority Date | Filing Date | Title |
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JP2003-084709 | 2003-03-26 | ||
JP2003084709A JP2004297284A (ja) | 2003-03-26 | 2003-03-26 | 通信端末装置及び無線通信方法 |
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US (1) | US20060079257A1 (ja) |
EP (1) | EP1565021A1 (ja) |
JP (1) | JP2004297284A (ja) |
CN (1) | CN1745599A (ja) |
BR (1) | BRPI0407836A (ja) |
WO (1) | WO2004086804A1 (ja) |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8811348B2 (en) | 2003-02-24 | 2014-08-19 | Qualcomm Incorporated | Methods and apparatus for generating, communicating, and/or using information relating to self-noise |
US7218948B2 (en) | 2003-02-24 | 2007-05-15 | Qualcomm Incorporated | Method of transmitting pilot tones in a multi-sector cell, including null pilot tones, for generating channel quality indicators |
US9661519B2 (en) | 2003-02-24 | 2017-05-23 | Qualcomm Incorporated | Efficient reporting of information in a wireless communication system |
US9544860B2 (en) | 2003-02-24 | 2017-01-10 | Qualcomm Incorporated | Pilot signals for use in multi-sector cells |
US20060092881A1 (en) * | 2004-10-14 | 2006-05-04 | Rajiv Laroia | Methods and apparatus for determining, communicating and using information which can be used for interference control purposes |
US8503938B2 (en) | 2004-10-14 | 2013-08-06 | Qualcomm Incorporated | Methods and apparatus for determining, communicating and using information including loading factors which can be used for interference control purposes |
KR100911087B1 (ko) | 2004-10-14 | 2009-08-06 | 콸콤 인코포레이티드 | 간섭 제어 목적으로 사용될 수 있는 정보를 결정, 통신, 및사용하기 위한 방법 및 장치 |
US9191840B2 (en) | 2005-10-14 | 2015-11-17 | Qualcomm Incorporated | Methods and apparatus for determining, communicating and using information which can be used for interference control |
US8694042B2 (en) | 2005-10-14 | 2014-04-08 | Qualcomm Incorporated | Method and apparatus for determining a base station's transmission power budget |
JP5290580B2 (ja) * | 2005-11-21 | 2013-09-18 | 日本電気株式会社 | 移動局、下り伝送レート制御方法及び下り伝送レート制御プログラム |
US9572179B2 (en) | 2005-12-22 | 2017-02-14 | Qualcomm Incorporated | Methods and apparatus for communicating transmission backlog information |
US8437251B2 (en) * | 2005-12-22 | 2013-05-07 | Qualcomm Incorporated | Methods and apparatus for communicating transmission backlog information |
US9148795B2 (en) | 2005-12-22 | 2015-09-29 | Qualcomm Incorporated | Methods and apparatus for flexible reporting of control information |
US9451491B2 (en) | 2005-12-22 | 2016-09-20 | Qualcomm Incorporated | Methods and apparatus relating to generating and transmitting initial and additional control information report sets in a wireless system |
US9119220B2 (en) | 2005-12-22 | 2015-08-25 | Qualcomm Incorporated | Methods and apparatus for communicating backlog related information |
US9137072B2 (en) | 2005-12-22 | 2015-09-15 | Qualcomm Incorporated | Methods and apparatus for communicating control information |
US8514771B2 (en) * | 2005-12-22 | 2013-08-20 | Qualcomm Incorporated | Methods and apparatus for communicating and/or using transmission power information |
US20070149132A1 (en) | 2005-12-22 | 2007-06-28 | Junyl Li | Methods and apparatus related to selecting control channel reporting formats |
US9338767B2 (en) * | 2005-12-22 | 2016-05-10 | Qualcomm Incorporated | Methods and apparatus of implementing and/or using a dedicated control channel |
US9125093B2 (en) | 2005-12-22 | 2015-09-01 | Qualcomm Incorporated | Methods and apparatus related to custom control channel reporting formats |
US9473265B2 (en) | 2005-12-22 | 2016-10-18 | Qualcomm Incorporated | Methods and apparatus for communicating information utilizing a plurality of dictionaries |
US9125092B2 (en) | 2005-12-22 | 2015-09-01 | Qualcomm Incorporated | Methods and apparatus for reporting and/or using control information |
US20070253449A1 (en) * | 2005-12-22 | 2007-11-01 | Arnab Das | Methods and apparatus related to determining, communicating, and/or using delay information |
US20070243882A1 (en) * | 2006-04-12 | 2007-10-18 | Qualcomm Incorporated | Method and apparatus for locating a wireless local area network associated with a wireless wide area network |
CN101421938B (zh) * | 2006-04-18 | 2012-11-28 | 艾利森电话股份有限公司 | 在多用户无线通信网络中使用时域和频域中的均衡公平调度的业务量负荷相关的功率分配 |
CN100428828C (zh) * | 2006-08-02 | 2008-10-22 | 华为技术有限公司 | 一种小区公共测量值的测量方法及装置 |
US8018895B2 (en) | 2006-11-30 | 2011-09-13 | Motorola Mobility, Inc. | Apparatus and method for transmitting uplink control information on shared channels |
US8639259B2 (en) * | 2007-03-01 | 2014-01-28 | Ntt Docomo, Inc. | Base station apparatus and communication control method |
BRPI0808395A2 (pt) * | 2007-03-01 | 2014-07-08 | Ntt Docomo Inc | Aparelho da estação de base e método de controle de comunicação. |
ES2709345T3 (es) | 2007-03-22 | 2019-04-16 | Nec Corp | Transmisión de información del volumen de datos entre estaciones base en las transferencias |
US8489752B2 (en) * | 2008-05-29 | 2013-07-16 | Advanced Micro Devices, Inc. | Method and system for controlling bus access |
CN101730177B (zh) * | 2008-10-30 | 2012-04-18 | 财团法人工业技术研究院 | 异质网络环境下的自适应切换装置与方法 |
WO2011052022A1 (ja) * | 2009-11-02 | 2011-05-05 | 株式会社日立製作所 | 中継装置を有する無線通信システム、及び中継端末選択方法 |
CN102215595A (zh) * | 2010-04-07 | 2011-10-12 | 北京三星通信技术研究有限公司 | 一种上行调度请求传输方法 |
CN104335534B (zh) * | 2013-02-28 | 2017-11-28 | 华为技术有限公司 | 数据发送方法、接收方法及设备 |
US8879613B1 (en) * | 2013-08-06 | 2014-11-04 | Cisco Technology, Inc. | Dynamic frame selection when requesting tone map parameters in mesh networks |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0923266A2 (en) * | 1997-11-01 | 1999-06-16 | Mitsubishi Denki Kabushiki Kaisha | Radio channel assigning device and method thereof |
WO2001063851A1 (en) * | 2000-02-21 | 2001-08-30 | Nokia Corporation | Capacity allocation for packet data bearers |
JP2002330166A (ja) * | 2001-04-26 | 2002-11-15 | Fujitsu Ltd | 通信装置及び通信制御方法 |
US20020172217A1 (en) * | 2001-05-21 | 2002-11-21 | Kadaba Srinivas R. | Multiple mode data communication system and method and forward and/or reverse link control channel structure |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3478100B2 (ja) * | 1997-12-09 | 2003-12-10 | 三菱電機株式会社 | 無線回線割当装置及び無線回線割当方法 |
CN1124700C (zh) * | 1998-12-18 | 2003-10-15 | 诺基亚网络有限公司 | 一种通信网中的业务负载控制方法 |
GB2358551B (en) * | 2000-01-19 | 2004-01-07 | Motorola Ltd | A packet scheduler and method therefor |
US6621793B2 (en) * | 2000-05-22 | 2003-09-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Application influenced policy |
US6901052B2 (en) * | 2001-05-04 | 2005-05-31 | Slt Logic Llc | System and method for policing multiple data flows and multi-protocol data flows |
US7304971B2 (en) * | 2002-11-01 | 2007-12-04 | Lucent Technologies Inc. | Flexible transmission method for wireless communications |
US8000284B2 (en) * | 2003-07-15 | 2011-08-16 | Qualcomm Incorporated | Cooperative autonomous and scheduled resource allocation for a distributed communication system |
-
2003
- 2003-03-26 JP JP2003084709A patent/JP2004297284A/ja active Pending
-
2004
- 2004-03-24 WO PCT/JP2004/004035 patent/WO2004086804A1/ja not_active Application Discontinuation
- 2004-03-24 BR BRPI0407836 patent/BRPI0407836A/pt not_active IP Right Cessation
- 2004-03-24 CN CNA2004800030270A patent/CN1745599A/zh active Pending
- 2004-03-24 US US10/535,973 patent/US20060079257A1/en not_active Abandoned
- 2004-03-24 EP EP20040723010 patent/EP1565021A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0923266A2 (en) * | 1997-11-01 | 1999-06-16 | Mitsubishi Denki Kabushiki Kaisha | Radio channel assigning device and method thereof |
WO2001063851A1 (en) * | 2000-02-21 | 2001-08-30 | Nokia Corporation | Capacity allocation for packet data bearers |
JP2002330166A (ja) * | 2001-04-26 | 2002-11-15 | Fujitsu Ltd | 通信装置及び通信制御方法 |
US20020172217A1 (en) * | 2001-05-21 | 2002-11-21 | Kadaba Srinivas R. | Multiple mode data communication system and method and forward and/or reverse link control channel structure |
Also Published As
Publication number | Publication date |
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CN1745599A (zh) | 2006-03-08 |
BRPI0407836A (pt) | 2006-02-14 |
EP1565021A1 (en) | 2005-08-17 |
US20060079257A1 (en) | 2006-04-13 |
JP2004297284A (ja) | 2004-10-21 |
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