WO2006073157A1 - 相対値通知方法、基地局及び移動局 - Google Patents
相対値通知方法、基地局及び移動局 Download PDFInfo
- Publication number
- WO2006073157A1 WO2006073157A1 PCT/JP2006/300037 JP2006300037W WO2006073157A1 WO 2006073157 A1 WO2006073157 A1 WO 2006073157A1 JP 2006300037 W JP2006300037 W JP 2006300037W WO 2006073157 A1 WO2006073157 A1 WO 2006073157A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- control signal
- relative value
- mobile station
- bits
- base station
- Prior art date
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
- H04L1/0025—Transmission of mode-switching indication
-
- 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
-
- 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
- H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
-
- 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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0072—Error control for data other than payload data, e.g. control data
- H04L1/0073—Special arrangements for feedback channel
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
Definitions
- Relative value notification method base station and mobile station
- the present invention relates to a relative value notification method, a base station, and a mobile station that notify a relative value of a predetermined variable from a transmission side device to a reception side device.
- FIG. 1 a method of notifying a relative value of a predetermined variable from a transmission side apparatus to a reception side apparatus using a binary method will be described.
- a table that associates signal patterns with relative values is used.
- the transmission side apparatus performs error correction coding processing on a signal pattern corresponding to a predetermined relative value, increases the Euclidean distance between the relative values, and decreases the error occurrence rate. It was configured as
- the transmitting side apparatus substantially reduces the Euclidean distance between the relative values that are close to each other by giving the high-order bits a lot of redundancy, and the values greatly differ. It is configured to increase the Euclidean distance between the relative values.
- CQI Channel Quality Indicator
- This method has an advantage that the error occurrence rate is low, and even if an error occurs, the influence of the error can be suppressed to a low level.
- the transmitting device transmits individual bits for a long time
- the receiving device calculates the relative value by receiving and decoding all the bits. There is a problem that it takes time to notify the relative value because it is necessary. That is, in this method, control delay and apparatus load due to error correction decoding processing have been problems.
- the transmitting side device notifies the “Up” instruction by transmitting a bit having the value “1”, and notifies the “Down” instruction by transmitting a bit having the value “0”. It is configured to In such a case, since the “Up” instruction or the “Down” instruction is updated for each bit, the receiving side apparatus can follow the “Up” instruction or the “Down” instruction at high speed.
- the above-described method has a problem that the value of the predetermined variable differs depending on the tracking start time of the notification channel, that is, it is difficult to ensure fairness between the receiving side devices. was there.
- Non-Patent Document 1 3GPP TR25.212 v5.8.0
- the present invention has been made in view of the above points, and a relative value notification method and a base station that can maintain fairness among receiving-side apparatuses while reducing control delay and control load. And to provide a mobile station.
- a first feature of the present invention is a relative value notification method for notifying a relative value of a predetermined variable from a transmission side device to a reception side device, wherein the transmission side device is transmitted within a predetermined period. Generating a control signal indicating the relative value by a number of 1 or 0 in a plurality of bits and transmitting the control signal to the receiving side device; and the control received by the receiving side device in the predetermined period Depending on the number of 1's or 0's in a plurality of bits in the signal, the predetermined variable And a step of increasing or decreasing the number.
- a second feature of the present invention is a relative value notification method for notifying a relative value of a maximum allowable transmission rate from a base station to a mobile station, wherein the base station is transmitted by the mobile station.
- a step of measuring an interference level from an upstream signal, and a speed control signal indicating the relative value by the number of 1 or 0 in a plurality of bits transmitted by the base station within a predetermined period based on the interference level And transmitting to the mobile station, and the mobile station in a plurality of bits in the speed control signal received in the predetermined period.
- a third feature of the present invention is a control signal configured to generate a control signal indicating a relative value of a predetermined variable according to the number of 1 or 0 in a plurality of bits transmitted within a predetermined period.
- the gist of the present invention is a base station including a generation unit and a control signal transmission unit configured to transmit the control signal to a mobile station.
- a fourth feature of the present invention is a control signal configured to generate a control signal indicating a relative value of a predetermined variable according to the number of 1 or 0 in a plurality of bits transmitted within a predetermined period.
- the gist of the present invention is that the mobile station includes a generation unit and a control signal transmission unit configured to transmit the control signal to the mobile station.
- a fifth feature of the present invention is that a control signal receiving unit configured to receive a control signal transmitted from a mobile station, and 1 or 2 in a plurality of bits in the control signal received in a predetermined period
- the gist of the present invention is that the base station includes a predetermined variable increasing / decreasing unit configured to increase / decrease the predetermined variable by the number of zeros.
- a sixth feature of the present invention is that a control signal receiving unit configured to receive a control signal transmitted from a base station, and 1 or 2 in a plurality of bits in the control signal received in a predetermined period
- the gist of the present invention is that the mobile station includes a predetermined variable increasing / decreasing unit configured to increase / decrease the predetermined variable by the number of zeros.
- FIG. 1 is a diagram showing an example of a table used in a relative value notification method in a conventional mobile communication system.
- FIG. 2 is a diagram for explaining a predetermined variable control method in a conventional mobile communication system.
- FIG. 3 is an overall configuration diagram of a mobile communication system according to an embodiment of the present invention.
- FIG. 4 is a functional block diagram of a base station of a mobile communication system according to an embodiment of the present invention.
- FIG. 5 is a functional block diagram of a mobile station in the mobile communication system according to one embodiment of the present invention.
- FIG. 6 is a diagram for explaining a method for controlling a maximum allowable transmission rate in a mobile station of a mobile communication system according to an embodiment of the present invention.
- FIG. 7A is a flowchart showing an operation of the mobile communication system according to one embodiment of the present invention.
- FIG. 7B is a flowchart showing the operation of the mobile communication system according to one embodiment of the present invention.
- the base station NodeB # 2 transmitting side device notifies the mobile station UE (receiving side device) of the relative value of the maximum allowable transmission rate signal (predetermined variable). It is configured to
- the base station NodeB # 1 transmits to the mobile station UE the maximum allowable transmission rate of the uplink signal (user data signal) transmitted by the mobile station UE (the maximum allowable It includes a parameter for calculating the transmission speed (hereinafter the same), and is configured to transmit a maximum permissible transmission speed signal.
- the base station NodeB # 2 Since the base station NodeB # 2 receives the uplink signal transmitted from the mobile station UE to the base station NodeB # 1 as interference, the maximum reported from the base station NodeB # 1 to the mobile station UE It is configured to transmit a speed control signal for instructing to reduce the allowable transmission speed.
- the speed control signal is configured to notify the relative value of the maximum allowable transmission speed.
- the base station NodeB # 2 includes an interference measurement unit 11, a speed control signal generation unit 12, a transmission buffer 13, and a speed control signal transmission unit 14. It has.
- the interference measurement unit 11 is configured to measure an interference level from an uplink signal transmitted by the mobile station UE.
- the speed control signal generation unit 12 starts from the base station No deB # 1 depending on the number of 1 or 0 in a plurality of bits transmitted within a predetermined period.
- the mobile station is configured to generate a speed control signal (control signal) that indicates the relative value of the maximum allowable transmission speed (predetermined variable) to be notified to the UE.
- the speed control signal generator 12 is configured to express the relative value of the above-described maximum allowable transmission speed (predetermined variable) with the most recent 5 bits.
- the multiplication result of “1/5” and the number of bits having the value “1” in the most recent 5 bits is configured to correspond to the relative value described above.
- the speed control signal generation unit 12 when notifying the relative value “0”, the speed control signal generation unit 12 is configured to generate a speed control signal in which the number of 1s in the most recent 5 bits is “0”.
- 1 of the number configured to generate a speed control signal is "5", Ru.
- the speed control signal generation unit 12 determines the above-described relative value corresponding to the interference level measured by the interference measurement unit 11, refers to the transmission buffer 13, and transmits it within a predetermined period.
- the value of the next bit to be transmitted is determined so that the number of 1's in the plurality of bits correspond to the relative values described above.
- the speed control signal generation unit 12 transmits a transmission buffer. Referring to buffer 13, determine the value of the next bit to be transmitted so that the number of 1s in the most recent 5 bits is “4”.
- the transmission buffer 13 temporarily stores the value of each bit in the speed control signal scheduled to be transmitted to the mobile station UE and the value of each bit in the speed control signal already transmitted to the mobile station UE. It is configured to accumulate.
- the speed control signal transmitter 14 is configured to extract the speed control signal generated by the speed control signal generator 12 from the transmission buffer 13 and transmit it to the mobile station UE.
- the speed control signal transmission unit 14 may be configured to transmit the speed control signal in 1-bit units, so as to transmit the speed control signal in units of multiple bits. It may be configured.
- the mobile station UE includes a maximum allowable transmission rate signal receiving unit 31, a rate control signal receiving unit 32, a reception buffer 33, a transmission rate determining unit 34, And a user data signal transmission unit 35.
- the maximum allowable transmission rate signal receiving unit 31 receives the maximum allowable transmission rate signal transmitted from the base station NodeB # 1, and transmits the maximum allowable transmission rate notified by the maximum allowable transmission rate signal to the transmission rate. It is configured to notify the decision unit 34!
- the speed control signal receiver 32 receives the speed control signal transmitted from the base station NodeB # 2, and sends the relative value of the maximum allowable transmission speed notified by the speed control signal to the transmission speed determiner 34. Configured to notify.
- the speed control signal receiving unit 32 is configured to calculate the relative value of the above-described maximum allowable transmission speed based on the number of 1 or 0 in a plurality of bits in the speed control signal received in a predetermined period. Yes.
- the transmission rate determination unit 34 receives the maximum notified by the maximum allowable transmission rate signal reception unit 31. By multiplying the permissible transmission rate by the relative value of the maximum permissible transmission rate notified by the speed control signal receiver 32, the maximum permissible transmission rate is increased or decreased, and from the mobile station UE to the base station NodeB # 1. Is configured to determine the transmission rate of the upstream signal!
- the user data signal transmission unit 35 is configured to transmit the user data signal to the base station NodeB # 1 at the transmission rate determined by the transmission rate determination unit 34.
- step S1001 the speed control signal generation unit 12 of the base station NodeB # 2 performs the maximum allowable transmission to be transmitted based on the interference level measured by the interference measurement unit 11. Determine the relative speed value.
- step S1002 the speed control signal generation unit 12 refers to the transmission buffer 13.
- step S 1003 the speed control signal generation unit 12 determines the value of the next bit to be transmitted based on the determined relative value and the number of searched bits. Then, the speed control signal generator 12 generates a speed control signal including the determined bit value and stores it in the transmission buffer 13.
- the speed control signal transmission unit 14 may be configured to transmit the speed control signal accumulated in the transmission buffer 13 to the mobile station UE at a predetermined timing.
- step S2001 the maximum allowable transmission rate receiver 31 of the mobile station UE receives the maximum allowable transmission rate signal from the base station NodeB # 1, and The speed control signal receiving unit 32 of the UE receives the speed control signal from the base station NodeB # 2.
- step S2002 the speed control signal receiving unit 32 receives the data received within a predetermined period. Calculate the relative value of the maximum allowable transmission rate based on the number of 1s or 0s (ie, the number of bits having the value “1” or “0”) in several bits (the 5 most recent in the example of FIG. 6) .
- step S2003 the transmission rate determining unit 34 compares the maximum allowable transmission rate notified from the maximum allowable transmission rate receiving unit 31 and the maximum allowable transmission rate calculated by the speed control signal receiving unit 32.
- the maximum permissible transmission rate is adjusted by multiplying.
- transmission rate determining unit 34 determines the transmission rate of the uplink signal (user data signal) based on the adjusted maximum allowable transmission rate.
- the transmission rate determination unit 34 may determine the transmission data block size of the uplink signal as the transmission rate of the uplink signal, or determine the transmission power ratio between the control signal and the user data signal. It's good.
- step S2005 user data signal transmitter 35 transmits a user data signal to base station NodeB # 1 at the determined transmission rate.
- the mobile station UE (receiving side device) has a bit having a value “1” or “0” in a plurality of bits of a speed control signal (control signal) received within a predetermined period. Since the relative value is calculated based on the number, the maximum allowable transmission rate (predetermined variable) can be controlled every time one bit is received, and the signal corresponding to the relative value The control delay and control load caused by receiving and decoding all bits of the pattern to control the maximum allowable transmission rate can be reduced.
- the mobile station UE (receiving side apparatus) force has a value "1" or "0" in a plurality of bits of the speed control signal received within a predetermined period. Since the relative value is calculated based on the number, the maximum is based on the number of “Up” instructions or “Down” instructions since tracking of the notification channel is started! / Compared to controlling the allowable transmission rate (predetermined variable), it is possible to reduce the deviation of the maximum allowable transmission rate between the mobile stations UE (receiving device).
- reception is reduced while reducing control delay and control load. It is possible to provide a relative value notification method, a base station, and a mobile station that can maintain fairness among the side devices.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06702132A EP1845638A1 (en) | 2005-01-05 | 2006-01-05 | Relative value notifying method, base station and mobile station |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-000987 | 2005-01-05 | ||
JP2005000987A JP2006191319A (ja) | 2005-01-05 | 2005-01-05 | 相対値通知方法、基地局及び移動局 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006073157A1 true WO2006073157A1 (ja) | 2006-07-13 |
Family
ID=36647633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/300037 WO2006073157A1 (ja) | 2005-01-05 | 2006-01-05 | 相対値通知方法、基地局及び移動局 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080130724A1 (ja) |
EP (1) | EP1845638A1 (ja) |
JP (1) | JP2006191319A (ja) |
KR (1) | KR20070099006A (ja) |
CN (1) | CN101099313A (ja) |
WO (1) | WO2006073157A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000196333A (ja) * | 1998-04-03 | 2000-07-14 | Lucent Technol Inc | デジタル通信システム |
JP2003523687A (ja) * | 2000-02-17 | 2003-08-05 | サムスン エレクトロニクス カンパニー リミテッド | 符号分割多重接続通信システムにおける共通パケットチャンネルを割り当てるための装置及び方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6603746B1 (en) * | 1999-06-18 | 2003-08-05 | Nortel Networks Limited | Method and apparatus for controlling transmitted power in a wireless communications system |
KR200204497Y1 (ko) * | 2000-06-24 | 2000-11-15 | 이원창 | 공압을 이용한 원터치방식의 철도차량용 브레이크완해시스템 |
US6889050B1 (en) * | 2000-11-22 | 2005-05-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Variable transmission rate services in a radio access network |
WO2003010984A1 (en) * | 2001-06-27 | 2003-02-06 | Nortel Networks Limited | Communication of control information in wireless communication systems |
DE10138217A1 (de) * | 2001-08-03 | 2003-03-20 | Atmel Germany Gmbh | Verfahren zur Übertragung von Daten |
KR20040064864A (ko) * | 2003-01-10 | 2004-07-21 | 삼성전자주식회사 | 이동통신 시스템에서 역방향 데이터 전송 속도 제어 장치및 방법 |
CN100593289C (zh) * | 2003-05-12 | 2010-03-03 | Lg电子株式会社 | 在移动通信系统中确定反向数据速率的方法 |
TWI234973B (en) * | 2003-07-01 | 2005-06-21 | Benq Corp | A data throughput adjusting method |
US7693110B2 (en) * | 2004-09-16 | 2010-04-06 | Motorola, Inc. | System and method for downlink signaling for high speed uplink packet access |
-
2005
- 2005-01-05 JP JP2005000987A patent/JP2006191319A/ja not_active Abandoned
-
2006
- 2006-01-05 EP EP06702132A patent/EP1845638A1/en not_active Withdrawn
- 2006-01-05 US US11/794,612 patent/US20080130724A1/en not_active Abandoned
- 2006-01-05 CN CNA2006800018136A patent/CN101099313A/zh active Pending
- 2006-01-05 WO PCT/JP2006/300037 patent/WO2006073157A1/ja active Application Filing
- 2006-01-05 KR KR1020077017596A patent/KR20070099006A/ko not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000196333A (ja) * | 1998-04-03 | 2000-07-14 | Lucent Technol Inc | デジタル通信システム |
JP2003523687A (ja) * | 2000-02-17 | 2003-08-05 | サムスン エレクトロニクス カンパニー リミテッド | 符号分割多重接続通信システムにおける共通パケットチャンネルを割り当てるための装置及び方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1845638A1 (en) | 2007-10-17 |
JP2006191319A (ja) | 2006-07-20 |
US20080130724A1 (en) | 2008-06-05 |
KR20070099006A (ko) | 2007-10-08 |
CN101099313A (zh) | 2008-01-02 |
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