WO2008109162A2 - Combined open loop/closed loop method for controlling uplink power of a mobile station - Google Patents
Combined open loop/closed loop method for controlling uplink power of a mobile station Download PDFInfo
- Publication number
- WO2008109162A2 WO2008109162A2 PCT/US2008/003085 US2008003085W WO2008109162A2 WO 2008109162 A2 WO2008109162 A2 WO 2008109162A2 US 2008003085 W US2008003085 W US 2008003085W WO 2008109162 A2 WO2008109162 A2 WO 2008109162A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wtru
- grant
- correction
- correction factor
- sinr
- Prior art date
Links
Classifications
-
- 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
- H04W52/06—TPC algorithms
- H04W52/08—Closed loop power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/005—Control of transmission; Equalising
-
- 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
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
-
- 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
- H04W52/06—TPC algorithms
- H04W52/10—Open loop power control
-
- 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
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
-
- 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
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
-
- 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
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
Definitions
- the weighting factor may be determined by WTRU 20 via autonomously detecting the presence of the closed loop PC command signaling.
- the power offsets for the individual granted MCS are known by both the WTRU and the eNodeB.
- Serving eNodeB 30 determines a WTRU specific (absolute and/or accumulated) PC correction command for each UL scheduled WTRU (or a subgroup of scheduled WTRUs).
- eNodeB 30 uses the power controlled data channel as a reference for the correction command.
- the resulting correction command is signaled to WTRU 20 (or a sub-group of the scheduled WTRUs) through the UL grant, and/or the DL scheduling channel, sent in the DL Layer 1 or Layer 2 control channels.
- the correction command may be signaled only in the UL grant associated with a particular (predefined) HARQ process, such as every HARQ process 1.
- WTRU 20 determines the correction factor, ⁇ ciosed, based on the correction command (or accumulated correction commands) set forth as: f ⁇ PC correction command(s)) ; Equation (5) where ⁇ chsed may take on a set of multiple step levels, for example, ⁇ +/-4, +/- 1 dB ⁇ using 3 bits of the command.
- WTRU 20 When WTRU 20 receives one correction command from the serving eNodeB 30 in an UL grant (or possibly accumulated correction commands in multiple UL grants) since the last Tx PSD adjustment, it shall derive a correction factor, ⁇ ciosed, from the received correction command (or after combining multiple correction commands if more than one command is received) for the next PSD adjustment.
- a correction factor ⁇ ciosed
- Figure 4 shows an example of the timing of the disclosed combined
- Figure 5 illustrates another example of the disclosed combined PC timing where inter-TTI is two.
- the UL PC update period is 8 TTIs (8 msec).
- the UL grant assignment (e.g. assigned MCS and TBS) in the DL control channel is tied up with the link quality (such as received PSD or SINR) of the UL data transmission.
- an eNodeB 30 processor 125 may assign the UL grant (MCS and TBS) for WTRU 20 such that the grant assignment represents the link quality (e.g. SINR) received at eNodeB 30.
- a can be configured by the eNodeB on a semi-static basis and signaled via higher layer signaling;
- E(PSD ⁇ x(control)) represents the average PSD for control channel in dBm
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
Abstract
Description
Claims
Priority Applications (20)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK08726594.8T DK2119033T3 (en) | 2007-03-07 | 2008-03-07 | Combined open / closed loop method for controlling the uplink power of a mobile station. |
CN200880007482.6A CN101627554B (en) | 2007-03-07 | 2008-03-07 | Combined open loop/closed loop method for controlling uplink power of a mobile station |
EP12158263.9A EP2464176B1 (en) | 2007-03-07 | 2008-03-07 | Combined open loop/closed loop method for controlling uplink power of a mobile station |
KR1020097020571A KR101131669B1 (en) | 2007-03-07 | 2008-03-07 | Combined open loop/closed loop method for controlling uplink power of a mobile station |
EP19201275.5A EP3621364B1 (en) | 2007-03-07 | 2008-03-07 | Combined open loop/closed loop for controlling uplink power of a mobile station |
KR1020147029995A KR101588158B1 (en) | 2007-03-07 | 2008-03-07 | Combined open loop/closed loop method for controlling uplink power spectral density of a mobile station and mitigating inter-cell interference |
KR1020137032013A KR101505357B1 (en) | 2007-03-07 | 2008-03-07 | Combined open loop/closed loop method for controlling uplink power spectral density of a mobile station and mitigating inter-cell interference |
ES08726594.8T ES2592276T3 (en) | 2007-03-07 | 2008-03-07 | Combined open loop / closed loop procedure to control the uplink power of a mobile station |
AU2008223333A AU2008223333B2 (en) | 2007-03-07 | 2008-03-07 | Combined open loop/closed loop method for controlling uplink power of a mobile station |
EP08726594.8A EP2119033B1 (en) | 2007-03-07 | 2008-03-07 | Combined open loop/closed loop method for controlling uplink power of a mobile station |
KR1020137005883A KR101475636B1 (en) | 2007-03-07 | 2008-03-07 | Combined open loop/closed loop method for controlling uplink power spectral density of a mobile station and mitigating inter-cell interference |
JP2009552754A JP5280377B2 (en) | 2007-03-07 | 2008-03-07 | A combined open loop / closed loop method for controlling uplink power of a mobile station |
MX2009009504A MX2009009504A (en) | 2007-03-07 | 2008-03-07 | Combined open loop/closed loop method for controlling uplink power of a mobile station. |
BRPI0808251A BRPI0808251B1 (en) | 2007-03-07 | 2008-03-07 | method for controlling the transmit power of a wireless transmit and receive unit and wireless transmit and receive unit |
KR1020147011512A KR101584466B1 (en) | 2007-03-07 | 2008-03-07 | Combined open loop/closed loop method for controlling uplink power spectral density of a mobile station and mitigating inter-cell interference |
CA2680153A CA2680153C (en) | 2007-03-07 | 2008-03-07 | Combined open loop/closed loop method for controlling uplink power of a mobile station |
KR1020097021064A KR101397135B1 (en) | 2007-03-07 | 2008-03-07 | Combined open loop/closed loop method for controlling uplink power of a mobile station |
PL12158263T PL2464176T3 (en) | 2007-03-07 | 2008-03-07 | Combined open loop/closed loop method for controlling uplink power of a mobile station |
IL200725A IL200725A0 (en) | 2007-03-07 | 2009-09-03 | Combined open loop/closed loop method for controlling uplink power of a mobile station |
HK10104794.8A HK1137086A1 (en) | 2007-03-07 | 2010-05-17 | Combined open loop closed loop method for controlling uplink power of a mobile station |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US89357507P | 2007-03-07 | 2007-03-07 | |
US60/893,575 | 2007-03-07 | ||
US89556107P | 2007-03-19 | 2007-03-19 | |
US60/895,561 | 2007-03-19 | ||
US94528607P | 2007-06-20 | 2007-06-20 | |
US60/945,286 | 2007-06-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008109162A2 true WO2008109162A2 (en) | 2008-09-12 |
WO2008109162A3 WO2008109162A3 (en) | 2008-11-13 |
Family
ID=39736998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2008/003085 WO2008109162A2 (en) | 2007-03-07 | 2008-03-07 | Combined open loop/closed loop method for controlling uplink power of a mobile station |
Country Status (18)
Country | Link |
---|---|
US (7) | US8509836B2 (en) |
EP (3) | EP2119033B1 (en) |
JP (4) | JP5280377B2 (en) |
KR (6) | KR101584466B1 (en) |
CN (1) | CN103974399B (en) |
AR (1) | AR065637A1 (en) |
AU (1) | AU2008223333B2 (en) |
BR (1) | BRPI0808251B1 (en) |
CA (1) | CA2680153C (en) |
DK (2) | DK2119033T3 (en) |
ES (2) | ES2592276T3 (en) |
HK (1) | HK1137086A1 (en) |
IL (1) | IL200725A0 (en) |
MX (1) | MX2009009504A (en) |
MY (1) | MY151945A (en) |
PL (2) | PL2119033T3 (en) |
TW (4) | TWI462509B (en) |
WO (1) | WO2008109162A2 (en) |
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