US20110116408A1 - Substrate conveying device - Google Patents

Substrate conveying device Download PDF

Info

Publication number
US20110116408A1
US20110116408A1 US13/002,649 US200913002649A US2011116408A1 US 20110116408 A1 US20110116408 A1 US 20110116408A1 US 200913002649 A US200913002649 A US 200913002649A US 2011116408 A1 US2011116408 A1 US 2011116408A1
Authority
US
United States
Prior art keywords
noise
ni
method
interference
interference value
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.)
Abandoned
Application number
US13/002,649
Inventor
Dong Cheol Kim
Min Seok Noh
Yeong Hyeon Kwon
Jin Sam Kwak
Sung Ho Moon
Seung Hee Han
Hyun Woo Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US7879008P priority Critical
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Priority to PCT/KR2009/003739 priority patent/WO2010005238A2/en
Priority to US13/002,649 priority patent/US20110116408A1/en
Publication of US20110116408A1 publication Critical patent/US20110116408A1/en
Assigned to LG ELECTRONICS INC. reassignment LG ELECTRONICS INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KWAK, JIN SAM, HAN, SEUNG HEE, KIM, DONG CHEOL, KWON, YEONG HYEON, LEE, HYUN WOO, MOON, SUNG HO, NOH, MIN SEOK
Application status is Abandoned legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • H04W52/14Separate analysis of uplink or downlink
    • H04W52/146Uplink power control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • H04W52/24TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/242TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/38TPC being performed in particular situations
    • H04W52/42TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity

Abstract

A method for controlling uplink transmission power of a mobile station (MS) in a wireless communication system is provided. The method includes: obtaining a plurality of interference indicators indicating uplink interference from a base station (BS), wherein a full bandwidth is divided into a plurality of frequency partitions, and the plurality of interference indicators respectively correspond to the plurality of frequency partitions; determining an uplink transmission power level of a frequency partition corresponding to an interference indicator selected from the plurality of interference indicators on the basis of the selected interference indicator; and controlling the uplink transmission power on the basis of the uplink transmission power level. Accordingly, inter-cell interference can be reduced, and reliability of an MS located in a cell edge can be improved.

Description

    TECHNICAL FIELD
  • The present invention relates to wireless communications, and more particularly, to a method for controlling uplink transmission power by a mobile station in a wireless communication system, and the mobile station using the method.
  • BACKGROUND ART
  • A wireless communication system needs to control uplink transmission power. This is to regulate a magnitude of a reception signal of a base station to a proper level. If transmission power is too weak in uplink transmission, the base station cannot receive a transmission signal of a mobile station. On the other hand, if the transmission power is too strong, the transmission signal of the mobile station may act as interference to a transmission signal of another mobile station, which increases battery consumption of the mobile station. When the magnitude of the reception signal is maintained to the proper level by controlling the uplink transmission power, unnecessary power consumption of the mobile station can be avoided, and a data transfer rate can be adaptively determined, thereby improving transmission efficiency.
  • The uplink transmission power control is roughly classified into two types, i.e., an open loop power control and a closed loop power control. The open loop power control predicts uplink signal attenuation by measuring or estimating downlink signal attenuation so as to compensate for uplink transmission power, and determines uplink power by considering an amount of a radio resource allocated to the mobile station or an attribute of data to be transmitted. The closed loop power control regulates transmission power through interworking between the base station and the mobile station by using feedback information on the transmission power control.
  • A fractional frequency reuse (FFR) is one of schemes for reducing inter-cell interference. The FFR uses a feature in which a mobile station located in a cell center and a mobile station located in a cell edge are differently affected by interference caused by a neighbor cell. The mobile station located in the cell center is not significantly affected by interference from a neighbor base station, but the mobile station located in the cell edge is significantly affected by the inference from the neighbor base station. In the FFR, the mobile station located in the cell center uses a frequency reuse of 1, and the mobile station located in the cell edge uses a frequency reuse greater than 1. When the frequency reuse is greater than 1, it implies that frequency overlapping does not occur in an edge between neighbor cells.
  • Accordingly, there is a need for a method capable of controlling uplink transmission power by a mobile station in a system using an FFR.
  • SUMMARY OF INVENTION Technical Problem
  • The present invention provides a method and apparatus for controlling uplink transmission power for each frequency partition.
  • The present invention also provides a method and apparatus for providing interference information for uplink transmission power control.
  • Technical Solution
  • According to an aspect of the present invention, there is provided a method for controlling uplink transmission power of a mobile station (MS) in a wireless communication system. The method includes: obtaining a plurality of interference indicators indicating uplink interference from a base station (BS), wherein a full bandwidth is divided into a plurality of frequency partitions, and the plurality of interference indicators respectively correspond to the plurality of frequency partitions; determining an uplink transmission power level of a frequency partition corresponding to an interference indicator selected from the plurality of interference indicators on the basis of the selected interference indicator; and controlling the uplink transmission power on the basis of the uplink transmission power level.
  • In the aforementioned aspect of the present invention, the plurality of interference indicators may be obtained for each of uplink data and an uplink control signal, and the plurality of interference indicators may be determined according to a radio resource allocation type of each of the uplink data and the uplink control signal. In this case, the radio resource allocation type may be a type in which resources are allocated in contiguous resource allocation units in a frequency domain or a type in which resources are allocated in non-contiguous resource allocation units.
  • In addition, each of the plurality of frequency partitions may include a plurality of subband physical resource units (PRUs) and a plurality of miniband PRUs. The plurality of interference indicators may be broadcast from the BS.
  • In addition, the uplink transmission power control may be an open loop transmission power control.
  • According to another aspect of the present invention, there is provided an MS including: a radio frequency (RF) unit for transmitting/receiving a radio signal; and a processor coupled to the RF unit, wherein the processor is configured to: obtain a plurality of interference indicators indicating uplink interference from a BS, wherein a full bandwidth is divided into a plurality of frequency partitions, and the plurality of interference indicators respectively correspond to the plurality of frequency partitions; to determine an uplink transmission power level of a frequency partition corresponding to an interference indicator selected from the plurality of interference indicators on the basis of the selected interference indicator; and to control the uplink transmission power on the basis of the uplink transmission power level.
  • Advantageous Effects
  • According to the present invention, inter-cell interference can be reduced, and reliability of a mobile station located in a cell edge can be improved.
  • DESCRIPTION OF DRAWINGS
  • FIG. 1 shows a wireless communication system.
  • FIG. 2 shows an example of using a fractional frequency reuse (FFR).
  • FIG. 3 shows an example of radio resource allocation.
  • FIG. 4 shows an example of transmission power control in a hard FFR.
  • FIG. 5 shows an example of transmission power control in a soft FFR.
  • FIG. 6 is a flowchart showing an uplink transmission power control method according to an embodiment of the present invention.
  • FIG. 7 shows interference information according to another embodiment of the present invention.
  • FIG. 8 is a block diagram showing a wireless communication system for implementing an embodiment of the present invention.
  • MODE FOR INVENTION
  • FIG. 1 shows a wireless communication system.
  • Referring to FIG. 1, a wireless communication system 10 includes at least one base station (BS) 11. Respective BSs 11 provide communication services to specific geographical regions (generally referred to as cells) 15 a, 15 b, and 15 c. The cell can be divided into a plurality of regions, each of which is referred to as a sector. The BS 11 is generally a fixed station that communicates with a mobile station (MS) 12 and may be referred to as another terminology, such as an evolved node-B (eNB), a base transceiver system (BTS), an access point, an access network (AN), etc. The BS 11 can perform functions such as connectivity with the MS 12, management, control, resource allocation, etc.
  • The MS 12 may be fixed or mobile, and may be referred to as another terminology, such as a user equipment (UE), a user terminal (UT), a subscriber station (SS), a wireless device, a personal digital assistant (PDA), a wireless modem, a handheld device, an access terminal (AT), etc. Hereinafter, a downlink (DL) denotes communication from the BS 11 to the MS 12, and an uplink (UL) denotes communication from the MS 12 to the BS 11.
  • FIG. 2 shows an example of using a fractional frequency reuse (FFR). One cell C1 is divided into a center region 21 and three edge regions 22, 23, and 24. A full bandwidth of available frequencies in one cell is divided into four frequency partitions (FPs). The center region 21 uses a 4th frequency partition (i.e., F4). The three edge regions 22, 23, and 24 respectively use 1st, 2nd, and 3rd frequency partitions (i.e., FP1, FP2, and FP3). Contiguous cells use different FPs. That is, the edge region 22 of the cell C1 uses the F1, an edge region 32 of a cell C2 uses the F3, and an edge region 43 of a cell C3 uses the F2.
  • FIG. 3 shows an example of radio resource allocation. A physical resource unit (PRU) may be a basic physical unit of resource allocation. For example, one PRU may include Psc contiguous subcarriers in a frequency domain and Nsym contiguous orthogonal frequency division multiple access (OFDMA) symbols in a time domain. For example, Psc may be 18, and Nsym may be 6 or 7. The PRUs are divided into a subband and a miniband. The subband is a logical unit including a plurality of contiguous PRUs. Herein, one subband may include 4 contiguous PRUs. The miniband is a logical unit including at least one PRU. PRUs belonging to the subband are called subband PRUs (i.e., PRUSB), and PRUs belonging to the miniband are called miniband PRUs (i.e., PRUMB).
  • In this example, 24 PRUs indexed from 0 to 23 are mapped to 12 subband PRUs and 12 miniband PRUs (step S402). The 24 PRUs are grouped into sub-groups in a unit of 4 (i.e., corresponding to the number of PRUs belonging to the subband), and non-contiguous sub-groups are sequentially mapped to the subband and the miniband. Permutation may be performed on the miniband PRUs to shuffle locations of the miniband PRUs (step S403).
  • The subband PRUs and the miniband PRUs are divided for each frequency partition (step S404). Although it is shown herein that they are divided into two frequency partitions FP1 and FP2, the number of frequency partitions is not limited thereto. The frequency partition may be a logical frequency allocation unit divided in a full bandwidth of available frequencies. At least one frequency partition may be allocated to an MS. The frequency partition may include a plurality of logical PRUs, and may also include subband PRUs and miniband PRUs. The frequency partitions FP1 and FP2 may be used for other purposes, e.g., an FFR and/or a multicast and broadcast service (MBS).
  • The FFR includes a hard FFR and a soft FFR. In the hard FFR, a 2nd frequency partition is inactive if a 1st frequency partition is active. In the soft FFR, the 2nd frequency partition can be active even if the 1st frequency partition is active.
  • FIG. 4 shows an example of transmission power control in a hard FFR. MSs 1, 2, and 3 may belong to different sectors (or cells). In the MS 1, if a 1st frequency partition (i.e., F1) is active, 2nd and 3rd frequency partitions (i.e., F2 and F3) are inactive. In this case, a 4th frequency partition (i.e., F4) may also be active in the MS 1. The F4 may be used in transmission of a control signal 500 for MSs located in an inner cell. Therefore, the MS 1 performs the transmission power control in the F1 and the F4.
  • In the MS 2, if the F2 is active, the F1 and the F3 are inactive. In this case, the F4 may also be active in the MS 2. The MS 2 performs transmission power control in the F2 and the F4.
  • Likewise, in the MS 3, if the F3 is active, the F1 and the F2 are inactive. In this case, the F4 may also be active in the MS 3. The MS 3 performs transmission power control in the F3 and the F4.
  • FIG. 5 shows an example of transmission power control in a soft FFR. MSs 1, 2, and 3 may belong to different sectors (or cells). In the MS 1, an F1 and an F4 may be active, and an F2 and an F3 may also be active. Therefore, the MS 1 performs transmission power control in the F1 to the F4. However transmission power of the F2 and the F3 has a maximum transmission power level lower than those of the F1 and F4 which can be regarded as primary frequency partitions. The same also apply to the MS 2 and the MS 3.
  • Since the frequency partitions can be used for different purposes such as an FFR, an MBS, etc., it is preferable to perform power control for each frequency partition.
  • FIG. 6 is a flowchart showing a UL transmission power control method according to an embodiment of the present invention. A BS estimates an interference indicator (i.e., a noise and interference level indicator (NI)) for each frequency partition by using signals received from neighbor cells (step S61). The BS sends the NI corresponding to each frequency partition to an MS (step S62). The NI may be broadcast through a broadcast channel. Alternatively, the NI may be unicast/multicast to an individual MS and/or a plurality of MSs with respect to allocated frequency partitions. The MS controls UL transmission power of a UL channel for each frequency partition (step S63). The MS transmits UL data through the UL channel (step S64).
  • In an open loop power control, UL transmission power for each frequency partition can be determined by the following equation.

  • P i =L i+SINRTarget,i +NI i+OffsetMSperMS+OffsetBSperMS  [Equation 1]
  • In Equation 1, Pi denotes a transmission power level of an ith frequency partition, Li denotes an estimated UL propagation loss of the ith frequency partition, SINRTarget,i denotes a target UL signal-to-interference plus noise ratio (SINR) of the ith frequency partition, NIi denotes an NI of the ith frequency partition, OffsetMSperMS denotes a correction term for MS-specific power offset, and OffsetBSperMS denotes a correction term for BS-specific power offset. Li can be determined based on total power received on an active subcarrier of a preamble. SINRTarget,i may be determined based on a power control value received from the BS, or may be a predetermined value. The NI, may be information which is broadcast by the BS.
  • The NI denotes an interference level when UL transmission of MSs belonging to neighbor cells has an effect on an MS in a serving cell. Hereinafter, the NI indicates an estimated average power level of noise and interference, and is generally expressed by average power per subcarrier (i.e., dBm per subcarrier). However, the present invention is not limited thereto, and thus the NI can be expressed variously such as average power per frequency (dBm per Hz), average power per band (dBm per band), average power per subchannel (dBm per subchannel), etc. The NI may be determined to average power with respect to a sum of noise and interference per subcarrier, or the sum of the noise and interference may be normalized to noise. By the use of the NI given for each frequency partition, UL power control is possible for each frequency partition.
  • Although it is introduced in the above example that UL transmission power is obtained for each frequency partition by the MS, the BS may determine UL transmission power for each frequency partition. The BS may estimate an interference level for each frequency partition and may perform UL transmission power control for each frequency partition, thereby being able to decrease inter-cell interference.
  • FIG. 7 shows an NI according to another embodiment of the present invention.
  • In each FP, the NI may be given differently according to UL data and a UL control signal. The UL control signal may include at least one of a hybrid automatic repeat request (HARQ) acknowledgement (ACK)/negative-acknowledgement (NACK) signal, a ranging signal, a channel quality indicator (CQI), a sounding signal, and a precoding matrix index (PMI). The UL data may include user data. The UL control signal and the UL data may be transmitted simultaneously in a frequency partition. This implies that the UL control signal and the UL data can be transmitted on one OFDMA symbol.
  • The control signal generally does not use or cannot use an additional characteristic such as retransmission, link adaptation etc. Therefore, to increase reception throughput in transmission, more attention is required such as modulation, a coding rate, power allocation, etc. In addition, the control signal has a tendency to maintain a statistical characteristic by performing transmission only for a specific symbol and a specific frequency band among radio resources. The data and the control signal require different transmission power controls. Therefore, effective transmission power control is possible in such a manner that the NI is reported by a BS to an MS by dividing the NI into an NI 710 for the UL data and an NI 720 for the UL control signal in the frequency partition.
  • In addition thereto, the NI 710 for the UL data and the NI 720 for the UL control signal can be further sub-divided. For example, the NI may be given per distributed bands 711 and 721, per localized bands 712 and 722, and per average localized bands 713 and 723. The distributed band denotes a band in which a resource allocation unit (e.g., PRU) is allocated not-contiguously, and may correspond to a miniband for example. The localized band denotes a band in which a plurality of contiguous resource allocation units are allocated, and may correspond to a subband for example. The average localized band denotes an average NI for a plurality of subbands.
  • That is, the NI transmitted by the BS to the MS may be determined according to allocation of a radio resource used in transmission of the UL data and/or the UL control signal transmitted by the MS to the BS, for example, according to: 1) whether it is allocated to a distributed band or a localized band; 2) whether the UL data and the UL control signal are transmitted simultaneously by performing frequency division multiplexing (FDM) or are transmitted by using different time resources; and 3) which FP will be used to transmit the UL data and the UL control signal.
  • FIG. 8 is a block diagram showing a wireless communication system for implementing an embodiment of the present invention. A BS 50 includes a processor 51, a memory 53, and a radio frequency (RF) unit 52. The processor 51 estimates a plurality of interference indicators indicating UL interference. Layers of a radio interface protocol may be implemented by the processor 51. The memory 53 is coupled to the processor 51, and stores a variety of information for driving the processor 51. The RF unit 52 is coupled to the processor 51, and transmits and/or receives a radio signal.
  • An MS 60 includes a processor 61, a memory 62, and an RF unit 63. The processor 61 obtains a plurality of interference indicators indicating UL interference received through the RF unit 63, determines a UL transmission power level of a frequency partition corresponding to an interference indicator selected from the plurality of interference indicators on the basis of the selected interference indicator, and controls the UL transmission power on the basis of the UL transmission power level. Layers of a radio interference protocol may be implemented by the processor 61. The memory 62 is coupled to the processor 61, and stores a variety of information for driving the processor 61. The RF unit 63 is coupled to the processor 61, and transmits and/or receives a radio signal.
  • The processors 51 and 61 may include an application-specific integrated circuit (ASIC), a separate chipset, a logic circuit, and/or a data processing unit. The memories 52 and 62 may include a read-only memory (ROM), a random access memory (RAM), a flash memory, a memory card, a storage medium, and/or other equivalent storage devices. The RF units 53 and 63 may include one or more antennas for transmitting and/or receiving a radio signal. When the embodiment of the present invention is implemented in software, the aforementioned methods can be implemented with a module (i.e., process, function, etc.) for performing the aforementioned functions. The module may be stored in the memories 52 and 62 and may be performed by the processors 51 and 61. The memories 52 and 62 may be located inside or outside the processors 51 and 61, and may be coupled to the processors 51 and 61 by using various well-known means.
  • Although a series of steps or blocks of a flowchart are described in a particular order when performing methods in the aforementioned exemplary system, the steps of the present invention are not limited thereto. Thus, some of these steps may be performed in a different order or may be concurrently performed. Those skilled in the art will understand that these steps of the flowchart are not exclusive, and that another step can be included therein or one or more steps can be omitted without having an effect on the scope of the present invention.
  • The aforementioned embodiments include various exemplary aspects. Although all possible combinations for representing the various aspects cannot be described, it will be understood by those skilled in the art that other combinations are also possible. Therefore, all replacements, modifications and changes should fall within the spirit and scope of the claims of the present invention.

Claims (21)

1-12. (canceled)
13. A method for operating a mobile station (MS) in a wireless communication system using a specific frequency, the method comprising:
receiving a noise and interference level indicator (NI),
wherein the specific frequency includes a first frequency partition and a second frequency partition, and
wherein the NI includes a first noise and interference value for the first frequency partition and a second noise and interference value for the second frequency partition.
14. The method of claim 13,
wherein the specific frequency further includes a third frequency partition, and
wherein the NI further includes a third noise and interference value for the third frequency partition.
15. The method of claim 14,
wherein the specific frequency further includes a fourth frequency partition, and
wherein the NI further includes a fourth noise and interference value for the fourth frequency partition.
16. The method of claim 15,
wherein one of the first noise and interference value, the second noise and interference value, the third noise and interference value, and the fourth noise and interference value is for a control signal.
17. The method of claim 13, wherein at least one of the first noise and interference value and the second noise and interference value has a noise and interference value for each of uplink data and an uplink control signal.
18. The method of claim 13, wherein the NI is broadcasted from a base station (BS).
19. The method of claim 13, wherein the NI is for an open loop power control.
20. The method of claim 13, wherein uplink transmission power is determined based on the received NI according to the following equation:

P(dBm)=L+SINRTarget +NI+OffsetMSperMS+OffsetBSperMS
where P(dBm) is an uplink transmission power level (dBm) per subcarrier, L is an estimated average current uplink propagation loss value, SINRTarget is a target uplink SINR value, NI is the aforementioned NI, OffsetMSperMS is a correction term for MS-specific power offset regulated by the MS, and OffsetBSperMS is a correction term for BS-specific power offset regulated by a BS.
21. The method of claim 20, further comprising transmitting an uplink signal on the basis of the uplink transmission power.
22. The method of claim 13, wherein the NI is an average power level of noise and interference per subcarrier estimated by a BS.
23. A method for operating a base station (BS) in a wireless communication system using a specific frequency, the method comprising:
transmitting a noise and interference level indicator (NI),
wherein the specific frequency includes a first frequency partition and a second frequency partition, and
wherein the NI includes a first noise and interference value for the first frequency partition and a second noise and interference value for the second frequency partition.
24. The method of claim 23,
wherein the specific frequency further includes a third frequency partition, and
wherein the NI further includes a third noise and interference value for the third frequency partition.
25. The method of claim 24,
wherein the specific frequency further includes a fourth frequency partition, and
wherein the NI further includes a fourth noise and interference value for the fourth frequency partition.
26. The method of claim 25, wherein one of the first noise and interference value, the second noise and interference value, the third noise and interference value, and the fourth noise and interference value is for a control signal.
27. The method of claim 23, wherein at least one of the first noise and interference value and the second noise and interference value has a noise and interference value for each of uplink data and an uplink control signal.
28. The method of claim 23, wherein the NI is broadcasted from the BS.
29. The method of claim 23, wherein the NI is for open loop power control.
30. The method of claim 23, wherein uplink transmission power is determined based on the transmitted NI according to the following equation:

P(dBm)=L+SINRTarget +NI+OffsetMSperMS+OffsetBSperMS
where P(dBm) is an uplink transmission power level (dBm) per subcarrier, L is an estimated average current uplink propagation loss value, SINRTarget is a target uplink SINR value, NI is the aforementioned NI, OffsetMSperMS is a correction term for MS-specific power offset regulated by a mobile station (MS), and OffsetBSperMS is a correction term for BS-specific power offset regulated by the BS.
31. The method of claim 30, further comprising:
receiving an uplink signal on the basis of the uplink transmission power.
32. The method of claim 23, wherein the NI is an average power level of noise and interference per subcarrier estimated by the BS.
US13/002,649 2008-07-08 2009-07-08 Substrate conveying device Abandoned US20110116408A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US7879008P true 2008-07-08 2008-07-08
PCT/KR2009/003739 WO2010005238A2 (en) 2008-07-08 2009-07-08 Substrate conveying device
US13/002,649 US20110116408A1 (en) 2008-07-08 2009-07-08 Substrate conveying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/002,649 US20110116408A1 (en) 2008-07-08 2009-07-08 Substrate conveying device

Publications (1)

Publication Number Publication Date
US20110116408A1 true US20110116408A1 (en) 2011-05-19

Family

ID=41507578

Family Applications (3)

Application Number Title Priority Date Filing Date
US12/996,974 Abandoned US20110110257A1 (en) 2008-07-08 2009-07-08 Uplink transmission power control method in a wireless communication system
US13/002,649 Abandoned US20110116408A1 (en) 2008-07-08 2009-07-08 Substrate conveying device
US12/996,007 Expired - Fee Related US8531975B2 (en) 2008-07-08 2009-07-08 Method and apparatus for controlling uplink power in a wireless communication system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US12/996,974 Abandoned US20110110257A1 (en) 2008-07-08 2009-07-08 Uplink transmission power control method in a wireless communication system

Family Applications After (1)

Application Number Title Priority Date Filing Date
US12/996,007 Expired - Fee Related US8531975B2 (en) 2008-07-08 2009-07-08 Method and apparatus for controlling uplink power in a wireless communication system

Country Status (3)

Country Link
US (3) US20110110257A1 (en)
CN (1) CN102089998A (en)
WO (3) WO2010005237A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120328044A1 (en) * 2010-01-05 2012-12-27 Sharp Kabushiki Kaisha Communication apparatus, control program for the same, and integrated circuit

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090085504A (en) * 2008-02-04 2009-08-07 한국전자통신연구원 Interferecne mitigation method in orthogonal frequency division muliple access based cellura system
JP5084952B2 (en) * 2008-07-25 2012-11-28 エルジー エレクトロニクス インコーポレイティド Apparatus and method for transmitting signals in a wireless communication system
JP5410524B2 (en) * 2008-08-08 2014-02-05 ノキア シーメンス ネットワークス オサケユキチュア Apparatus and method for controlling output of mobile station
WO2010024536A2 (en) * 2008-08-27 2010-03-04 엘지전자 주식회사 Apparatus for transmitting a signal in a wireless communication system and method for same
US8279813B2 (en) * 2008-09-25 2012-10-02 Intel Corporation Method and apparatus of subchannelization of wireless communication system
US20100214993A1 (en) * 2009-02-20 2010-08-26 Nokia Corporation Apparatus and method for resource allocation for sounding channel
US8588178B2 (en) 2009-03-19 2013-11-19 Qualcomm Incorporated Adaptive association and joint association and resource partitioning in a wireless communication network
US8599768B2 (en) * 2009-08-24 2013-12-03 Intel Corporation Distributing group size indications to mobile stations
US8812006B2 (en) * 2009-11-02 2014-08-19 Telefonaktiebolaget L M Ericsson (Publ) Methods and arrangements in a wireless communication system
EP3190837A1 (en) * 2010-02-12 2017-07-12 Mitsubishi Electric Corporation Mobile communication system
JP5216058B2 (en) * 2010-02-15 2013-06-19 株式会社エヌ・ティ・ティ・ドコモ Mobile terminal apparatus and uplink control information signal transmission method
US8730827B2 (en) * 2010-03-05 2014-05-20 Intel Corporation Estimating quality of a signal in mobile wireless communication systems
US9236975B2 (en) 2010-03-08 2016-01-12 Broadcom Corporation Mobile subscriber information transmission over multiple uplink frames
US8867459B2 (en) * 2010-03-08 2014-10-21 Broadcom Corporation Mobile subscriber information transmission over multiple uplink frames
KR20120006259A (en) * 2010-07-12 2012-01-18 삼성전자주식회사 Apparatus and method to report uplink transmission power status in a mobile communication system
KR101233186B1 (en) * 2010-10-21 2013-02-15 엘지전자 주식회사 Method and apparutus for transmitting control information
EP2445279B1 (en) 2010-10-21 2018-12-05 Lg Electronics Inc. Method and apparatus for transmitting control information in a wireless communication system
US8605615B2 (en) * 2011-03-18 2013-12-10 Motorola Mobility Llc Method and apparatus for multi-radio coexistence with a system on an adjacent frequency band having a time-dependent configuration
WO2012153984A2 (en) * 2011-05-10 2012-11-15 엘지전자 주식회사 Method for determining uplink transmission power and user equipment
JP5814041B2 (en) * 2011-08-12 2015-11-17 株式会社Nttドコモ Radio communication system, radio base station apparatus, user terminal, and radio communication method
CN103959868B (en) * 2011-11-12 2018-04-06 Lg电子株式会社 Method and apparatus to allow a terminal in a wireless communication system, uplink transmission power is determined for
US8634352B2 (en) * 2011-12-13 2014-01-21 Motorola Solutions, Inc. Method and apparatus for resource negotiation in a direct communication link network
JP2013135332A (en) * 2011-12-26 2013-07-08 Sharp Corp Base station device, allowable number of duplication determination method, allowable number of duplication determination program, mobile station device, allowable number of duplication notification method, and allowable number of duplication notification program
US8868123B2 (en) * 2012-07-16 2014-10-21 Motorola Mobility Llc Method and system for managing transmit power on a wireless communication network
US9220070B2 (en) 2012-11-05 2015-12-22 Google Technology Holdings LLC Method and system for managing transmit power on a wireless communication network
WO2014085637A1 (en) * 2012-11-30 2014-06-05 Sentinella Pharmaceuticals, Inc. New lantibiotic derivatives and a process for their preparation
US9763199B2 (en) 2014-01-29 2017-09-12 Interdigital Patent Holdings, Inc. Uplink transmissions in wireless communications

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060003787A1 (en) * 2004-06-09 2006-01-05 Samsung Electronics Co., Ltd. Method and apparatus for data transmission in a mobile telecommunication system supporting enhanced uplink service
US20060046789A1 (en) * 2004-08-16 2006-03-02 Samsung Electronics Co., Ltd. Apparatus and method for controlling uplink power in a mobile communication system using a TDD scheme
US20060111119A1 (en) * 2003-08-12 2006-05-25 Matsushita Electric Industrial Co., Ltd Mobile terminal apparatus and transmission power control method
US20060268789A1 (en) * 2005-05-20 2006-11-30 Nokia Corporation Radio resource control in HSUPA system
US20070081449A1 (en) * 2005-10-07 2007-04-12 Samsung Electronics Co., Ltd. Multi-carrier wireless network using flexible fractional frequency reuse
US20070082620A1 (en) * 2005-10-06 2007-04-12 Interdigital Technology Corporation Method and apparatus for controlling uplink transmission power for ofdma based evolved utra
US20070127359A1 (en) * 2003-11-19 2007-06-07 Jae-Young Ahn Method for partitioning resource space, assigning physical channel, and allocating power in ofdma-based cellular system
US20070178930A1 (en) * 2006-01-18 2007-08-02 Motorola, Inc. Method and apparatus for uplink resource allocation in a frequency division multiple access communication system
US20070275727A1 (en) * 2006-05-24 2007-11-29 Samsung Electronics Co. Ltd. Apparatus and Method for Performing Uplink Power Control in Broadband Wireless Access System
US20070293260A1 (en) * 2006-06-20 2007-12-20 Motorola, Inc. Method and apparatus for uplink power control in a frequency division multiple access communication system
US20080013476A1 (en) * 2006-07-13 2008-01-17 Subramanian Vasudevan Method of switching modes of uplink transmission in a wireless communication system
US20080057996A1 (en) * 2006-08-30 2008-03-06 Pantech Co., Ltd. Method for inter-cell interference mitigation for a mobile communication system
US20080081655A1 (en) * 2006-10-03 2008-04-03 Interdigital Technology Corporation Combined open loop/closed loop (cqi-based) uplink transmit power control with interference mitigation for e-utra
US20090047958A1 (en) * 2007-08-16 2009-02-19 Anna Pucar Rimhagen Neighbor List Management for User Terminal
US20090061778A1 (en) * 2006-03-20 2009-03-05 Nortel Networks Limited Method and system for fractional frequency reuse in a wireless communication network
US20090315779A1 (en) * 2008-06-20 2009-12-24 Qualcomm Incorporated Methods and systems for fast ranging in wireless communication networks
US20100105406A1 (en) * 2006-10-31 2010-04-29 Qualcomm Incorporated Inter-cell power control in the presence of fractional frequency reuse
US20100234026A1 (en) * 2009-03-13 2010-09-16 Qualcomm Incorporated Resource search in a communication network
US7917164B2 (en) * 2007-01-09 2011-03-29 Alcatel-Lucent Usa Inc. Reverse link power control
US20120028673A1 (en) * 2010-07-29 2012-02-02 Samsung Electronics Co., Ltd. Method and apparatus for controlling uplink power in wireless communication system
US20120115535A1 (en) * 2010-11-09 2012-05-10 Samsung Electronics Co. Ltd. Method and apparatus for uplink power control using ranging signal in wireless communication system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4423836B2 (en) * 2002-04-03 2010-03-03 日本電気株式会社 Cellular system, communication control method and a mobile station
KR100957314B1 (en) * 2005-02-16 2010-05-12 삼성전자주식회사 System and method for controlling uplink traffic load in a cellular wireless mobile communication system
US8774083B2 (en) * 2006-05-04 2014-07-08 Telefonaktiebolaget L M Ericsson (Publ) Method and arrangement in a communication system
KR100765892B1 (en) 2006-08-30 2007-10-10 주식회사 팬택 Method of controlling inter-cell interference for a mobile communication system
US9420603B2 (en) * 2006-09-08 2016-08-16 Qualcomm Incorporated Recovery from resource mismatch in a wireless communication system
EP2160846B1 (en) * 2007-05-29 2011-07-06 Telefonaktiebolaget L M Ericsson (publ) Technique for uplink data transmissions in communication networks
US9801188B2 (en) * 2008-02-01 2017-10-24 Qualcomm Incorporated Backhaul signaling for interference avoidance

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060111119A1 (en) * 2003-08-12 2006-05-25 Matsushita Electric Industrial Co., Ltd Mobile terminal apparatus and transmission power control method
US20070127359A1 (en) * 2003-11-19 2007-06-07 Jae-Young Ahn Method for partitioning resource space, assigning physical channel, and allocating power in ofdma-based cellular system
US20060003787A1 (en) * 2004-06-09 2006-01-05 Samsung Electronics Co., Ltd. Method and apparatus for data transmission in a mobile telecommunication system supporting enhanced uplink service
US20060046789A1 (en) * 2004-08-16 2006-03-02 Samsung Electronics Co., Ltd. Apparatus and method for controlling uplink power in a mobile communication system using a TDD scheme
US20060268789A1 (en) * 2005-05-20 2006-11-30 Nokia Corporation Radio resource control in HSUPA system
US20070082620A1 (en) * 2005-10-06 2007-04-12 Interdigital Technology Corporation Method and apparatus for controlling uplink transmission power for ofdma based evolved utra
US20070081449A1 (en) * 2005-10-07 2007-04-12 Samsung Electronics Co., Ltd. Multi-carrier wireless network using flexible fractional frequency reuse
US20070178930A1 (en) * 2006-01-18 2007-08-02 Motorola, Inc. Method and apparatus for uplink resource allocation in a frequency division multiple access communication system
US20090061778A1 (en) * 2006-03-20 2009-03-05 Nortel Networks Limited Method and system for fractional frequency reuse in a wireless communication network
US20070275727A1 (en) * 2006-05-24 2007-11-29 Samsung Electronics Co. Ltd. Apparatus and Method for Performing Uplink Power Control in Broadband Wireless Access System
US20070293260A1 (en) * 2006-06-20 2007-12-20 Motorola, Inc. Method and apparatus for uplink power control in a frequency division multiple access communication system
US20080013476A1 (en) * 2006-07-13 2008-01-17 Subramanian Vasudevan Method of switching modes of uplink transmission in a wireless communication system
US20080057996A1 (en) * 2006-08-30 2008-03-06 Pantech Co., Ltd. Method for inter-cell interference mitigation for a mobile communication system
US20080081655A1 (en) * 2006-10-03 2008-04-03 Interdigital Technology Corporation Combined open loop/closed loop (cqi-based) uplink transmit power control with interference mitigation for e-utra
US20100105406A1 (en) * 2006-10-31 2010-04-29 Qualcomm Incorporated Inter-cell power control in the presence of fractional frequency reuse
US7917164B2 (en) * 2007-01-09 2011-03-29 Alcatel-Lucent Usa Inc. Reverse link power control
US20090047958A1 (en) * 2007-08-16 2009-02-19 Anna Pucar Rimhagen Neighbor List Management for User Terminal
US20090315779A1 (en) * 2008-06-20 2009-12-24 Qualcomm Incorporated Methods and systems for fast ranging in wireless communication networks
US20100234026A1 (en) * 2009-03-13 2010-09-16 Qualcomm Incorporated Resource search in a communication network
US20120028673A1 (en) * 2010-07-29 2012-02-02 Samsung Electronics Co., Ltd. Method and apparatus for controlling uplink power in wireless communication system
US20120115535A1 (en) * 2010-11-09 2012-05-10 Samsung Electronics Co. Ltd. Method and apparatus for uplink power control using ranging signal in wireless communication system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IEEE 802.16 Rev2/D2 standard ("Air Interface for Broadband Wireless Access Systems", DRAFT standard for Local and metropolitan area networks, December 2007, pages 663-664) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120328044A1 (en) * 2010-01-05 2012-12-27 Sharp Kabushiki Kaisha Communication apparatus, control program for the same, and integrated circuit
US8995561B2 (en) * 2010-01-05 2015-03-31 Sharp Kabushiki Kaisha Communication apparatus, control program for the same, and integrated circuit

Also Published As

Publication number Publication date
US20110110257A1 (en) 2011-05-12
WO2010005239A3 (en) 2010-04-22
WO2010005237A2 (en) 2010-01-14
US8531975B2 (en) 2013-09-10
CN102089998A (en) 2011-06-08
WO2010005238A3 (en) 2010-04-22
WO2010005237A3 (en) 2010-04-22
WO2010005239A2 (en) 2010-01-14
WO2010005238A2 (en) 2010-01-14
US20110134759A1 (en) 2011-06-09

Similar Documents

Publication Publication Date Title
EP2533444B1 (en) Radio communication device and radio communication method
EP2525618B1 (en) Apparatus and method for transmitting power headroom information in a multi-carrier system
US8670396B2 (en) Uplink control channel resource allocation for transmit diversity
US9184898B2 (en) Channel quality indicator for time, frequency and spatial channel in terrestrial radio access network
RU2559830C2 (en) Power control for ack/nack formats with carrier aggregation
CN103582003B (en) Periodically reporting channel state information coordinated multipoint (CoMP) system
CN102273307B (en) Method and apparatus for robust transmission of control information in wireless communication network
JP5607800B2 (en) Channel state reporting method and apparatus in multi-carrier system
US8792434B2 (en) Method and apparatus for selecting control channel elements for physical downlink control channel
JP5091942B2 (en) Base station apparatus and communication control method
EP2319272B1 (en) Method and apparatuses for interference reduction in wireless communication systems
US20110305290A1 (en) Device and method supporting multi-carrier waves
KR101839632B1 (en) Wireless communication system, mobile station device, wireless communication method, and integrated circuit
US9037091B2 (en) Transmission of channel quality data in wireless communication systems
US9705654B2 (en) Methods and apparatus for an extensible and scalable control channel for wireless networks
KR101346932B1 (en) Wireless communication system, mobile station device, base station device, wireless communication method, and integrated circuit
TWI516052B (en) The method can power headroom report power backoff indicators and apparatus for telecommunications systems cause
CA2770701C (en) System and method for modulation and coding scheme adaptation and power control in a relay network
EP2378821A2 (en) Communication device and method thereof
US20110299490A1 (en) Methods and Apparatus for Physical Uplink Control Channel (PUCCH) Load Control by Physical Downlink Control Channel (PDCCH) Restrictions
CN102598810B (en) Method and apparatus for controlling transmit power in wireless communication system
US8797983B2 (en) Apparatuses and methods for allocating spectrum resources in a wireless communication network
US8072918B2 (en) Network-based inter-cell power control for multi-channel wireless networks
US20180007685A1 (en) Method for allocating resources to uplink control channel
US8442001B2 (en) Systems, methods and apparatus for facilitating handover control using resource reservation with frequency reuse

Legal Events

Date Code Title Description
AS Assignment

Owner name: LG ELECTRONICS INC., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KIM, DONG CHEOL;NOH, MIN SEOK;KWON, YEONG HYEON;AND OTHERS;SIGNING DATES FROM 20101122 TO 20101124;REEL/FRAME:028649/0789

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION