WO2013156174A1 - Sélection de mode de planification dans une transmission de données en liaison montante - Google Patents

Sélection de mode de planification dans une transmission de données en liaison montante Download PDF

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Publication number
WO2013156174A1
WO2013156174A1 PCT/EP2013/052841 EP2013052841W WO2013156174A1 WO 2013156174 A1 WO2013156174 A1 WO 2013156174A1 EP 2013052841 W EP2013052841 W EP 2013052841W WO 2013156174 A1 WO2013156174 A1 WO 2013156174A1
Authority
WO
WIPO (PCT)
Prior art keywords
mode
scheduling
uplink data
interference
data transmission
Prior art date
Application number
PCT/EP2013/052841
Other languages
English (en)
Inventor
Krystian Pawlak
Przemyslaw Czerepinski
Roman Maslennikov
Alexey TRUSHANIN
Original Assignee
Nokia Siemens Networks Oy
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
Application filed by Nokia Siemens Networks Oy filed Critical Nokia Siemens Networks Oy
Publication of WO2013156174A1 publication Critical patent/WO2013156174A1/fr

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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
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0245—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal according to signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • 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
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This disclosure relates to uplink data transmission in selection in a wireless communication system, and more particularly to scheduling of data transmission in the uplink.
  • a communication system can be seen as a facility that enables communication sessions between two or more entities such as fixed or mobile communication devices, base stations, servers, machine type communication devices and/or other communication nodes.
  • a communication system and compatible communicating entities typically operate in accordance with a given standard or specification which sets out what the various entities associated with the system are permitted to do and how that should be achieved.
  • the standards, specifications and related protocols can define the manner how various aspects of communication such as access to the communication system and feedback messaging shall be implemented between communicating devices.
  • the various development stages of the standard specifications are referred to as releases.
  • a communication can be carried on wired or wireless carriers.
  • a wireless communication system at least a part of communications between stations occurs over a wireless link.
  • wireless systems include public land mobile networks (PLMN) such as cellular networks, satellite based communication systems and different wireless local networks, for example wireless local area networks (WLAN).
  • PLMN public land mobile networks
  • WLAN wireless local area networks
  • a wireless system can be divided into cells or other radio coverage or service areas provided by a station. Radio service areas can overlap, and thus a communication device in an area can send and receive signals within more than one station.
  • Each radio service area is controlled by an appropriate controller apparatus. Higher level control may be provided by another control apparatus controlling a plurality of radio service area.
  • a wireless communication system can be accessed by means of an appropriate communication device.
  • a communication device of a user is often referred to as user equipment (UE) or terminal.
  • UE user equipment
  • a communication device is provided with an appropriate signal receiving and transmitting arrangement for enabling communications with other parties.
  • a communication device is used for enabling receiving and transmission of communications such as speech and data.
  • a communication device provides a transceiver station that can communicate with another communication device such as e.g. a base station and/or another user equipment.
  • mobile station is used for referring to a user equipment
  • base station is used for referring to a network radio access point including at least some control functionality
  • RNC radio network controller
  • CDMA code division multiple access
  • DS-CDMA direct sequence CDMA
  • 3GPP UTRAN FDD 3 rd Generation Partnership Project Universal Mobile Telecommunication System Radio Access Network Frequency Division Duplex
  • An enhanced dedicated channel transport format combination may be selected based on the mode.
  • a mobile device is also typically provided with at least one data processing entity 201 , at least one memory 202 and other possible components 203 for use in software and hardware aided execution of tasks it is designed to perform, including control of access to and communications, such as communication of data and control signals with access systems and other communication devices and actions according to the embodiments described in more detail below.
  • the data processing, storage and other relevant control apparatus can be provided on an appropriate circuit board and/or in chipsets. This feature is denoted by reference 204.
  • the user may control the operation of the mobile device by means of a suitable user interface such as key pad 205, voice commands, touch sensitive screen or pad, combinations thereof or the like.
  • a display 208, a speaker and a microphone can be also provided.
  • a mobile communication device may comprise appropriate connectors (either wired or wireless) to other devices and/or for connecting external accessories, for example hands-free equipment, thereto.
  • the proportion itself is dependent on the propagation conditions and transmission mode (single stream or multiple input multiple output (MIMO)).
  • MIMO multiple input multiple output
  • the noise and other MS interference term becomes negligible, i.e. / no /se « I self , hence the SINR saturates.
  • increasing the carrier power may no longer lead to a commensurate increase of the SINR because of self-interference. This is believed to be due to multipath propagation or inter-stream effects in the case of MIMO.
  • AMC could also be achieved by maximum E-TFC indication.
  • SINR-based scheduling can be used to add another mechanism on top of power control for E-TFC selection and link adaptation.
  • selectable de-activation of Outer Loop Power Control (OLPC) to achieve SINR-based scheduling is provided.
  • OLPC Outer Loop Power Control
  • SIR Signal to Interference Ratio
  • ILPC Inner Loop Power Control
  • RWP received total wideband power
  • ILPC command frequency may be reduced from 1500 Hz to e.g. 500, 300 or 100 Hz.
  • a POWER HOLD command can be made possible.
  • the default power control loop operates at slot boundaries and includes +/-1 dB POWER UP and DOWN commands only.
  • the up/down steps may give rise to increased inter-symbol interference in the presence of multipath propagation and TX/RX pulse shaping filters, as well as impair channel estimation accuracy.
  • the lower ILPC rate and the hold command can the used to reduce or remove this effect.
  • ILPC may be replaced by a closed or open loop path loss and shadow fading compensation mechanism.
  • power control can be affected when SIR target selection (/calculation) algorithm changes at the transmission mode switch. For example, dynamic update of the SIR target may be stopped and/or the update may be calculated as a ratio of the received total wideband power to the noise plus interference power.
  • the HRUM SIR may be a BS internal SINR value or the latest SINR value + offset or an RNC pre-configured value.
  • HRUM operation covers both the rank-1 and rank-2 high rate transmissions. It is noted that another possibility is to operate rank-1 transmissions according to legacy principles (no SD parameter signalling) while operating rank-2 transmissions according to HRUM principles of SINR-based scheduling and, optionally, modified power control.
  • SIR a * C/l.
  • a 256 * Ec_DPCCH/Ec_total, where Ec_DPCCH is the transmitted per chip DPCCH energy and Ec_total is the total energy transmitted by the MS.
  • the scheduling grant can be derived as follows:
  • Ec_DPCCH / Ecjotal SIRJgt / (256 * CJgt / 1)
  • Example scenarios where HRUM can be deployed include a single high rate MS in a cell or a group of cells.
  • a straightforward use case for HRUM is the presence of a single active MS in the cell. This is expected to be a frequent occurrence in small cells, e.g. in the home or office environment but may also take place in a macrocell.
  • the term 'active' refers to a MS in the CELL_DCH state. Other MSs may be physically present in the same geographical area but not be 'active' e.g. in the IDLE or CELL_PCH state.
  • Another example includes one high rate connection and a group of low rate MSs.
  • one high rate connection coexists with a number of low rate connections.
  • the term low rate refers to e.g. an AMR speech or basic radio resource control (RRC) signalling for which a very low RX C/l, below -15 dB is sufficient.
  • RRC radio resource control
  • an interference cancellation mechanism operates in the BS receiver to remove the interference that the high rate transmission causes towards low rate transmissions.
  • TDMA scheduling on the slower basis is seen as advantageous for system stability.
  • step-wise TX power adjustments may be provided.
  • the above provides a solution where co-existence of an alternative mechanism with power control loops and power-based link adaptation is enabled. This can be used to avoid multiple interfering mechanisms to cater for the same performance metrics such as UL BLER.
  • the embodiments may provide an ability of a WCDMA system to better support high data rate transmissions in practical deployments in certain conditions and without endangering system stability.
  • the SDi parameter signalling may extend the E- TFC selection rules in the UE.
  • a method for controlling uplink data transmission comprising operating a control function for uplink data transmissions in an area in one of a first mode and a second mode of scheduling, wherein in the first mode the scheduling of the uplink transmission is based on power and in the second mode at least a part of the power based scheduling function is deactivated, determining a condition for switching of the control function between the first and second modes, and causing signalling of information regarding switching between the modes to at least one mobile device.
  • outer loop power control is deactivated, a signal to interference target for inner loop power control is set to a fixed value, a value for signal to interference for inner loop power control is determined based on carrier to interference ratio, received signal strength, and/or total received wideband power, a hold command is provided for inner loop power control, frequency of inner loop power control command is reduced, and inner loop power control is replaced by a closed or open loop path loss and shadow fading compensation mechanism.
  • the required data processing apparatus and functions of a control apparatus in a network element and a mobile device for the causing configuration, signaling, determinations, and/or control of measurement and reporting and so forth may be provided by means of one or more data processor.
  • the described functions may be provided by separate processors or by an integrated processor.
  • the data processors may be of any type suitable to the local technical environment, and may include one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs), application specific integrated circuits (ASIC), gate level circuits and processors based on multi core processor architecture, as non limiting examples.
  • the data processing may be distributed across several data processing modules.
  • a data processor may be provided by means of, for example, at least one chip.
  • the memory or memories may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as semiconductor based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory.
  • An appropriately adapted computer program code product or products may be used for implementing the embodiments, when loaded or otherwise provided on an appropriate data processing apparatus.
  • the program code product for providing the operation may be stored on, provided and embodied by means of an appropriate carrier medium.
  • An appropriate computer program can be embodied on a computer readable record medium.
  • a possibility is to download the program code product via a data network.
  • the various embodiments may be implemented in hardware or special purpose circuits, software, logic or any combination thereof.
  • Embodiments of the inventions may be practiced in various components such as integrated circuit modules. The design of integrated circuits is by and large an automated process. Complex and powerful tools are available for converting a logic level design into a semiconductor circuit design ready to be formed on a semiconductor substrate.

Abstract

La présente invention concerne des procédés et des appareils destinés à la transmission de données en liaison montante. Une fonction de commande pour des transmissions de données en liaison montante dans une zone est utilisée dans un premier mode ou dans un second mode de planification. Le second mode fournit une planification de la transmission de données en liaison montante sur la base de la qualité du signal. Une condition de commutation de la fonction de commande entre les premier et second modes peut être déterminée. Des informations concernant la commutation entre les modes peuvent ensuite être signalées à au moins un dispositif mobile, qui commute par conséquent entre les modes.
PCT/EP2013/052841 2012-04-19 2013-02-13 Sélection de mode de planification dans une transmission de données en liaison montante WO2013156174A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EPPCT/EP2012/057220 2012-04-19
EP2012057220 2012-04-19

Publications (1)

Publication Number Publication Date
WO2013156174A1 true WO2013156174A1 (fr) 2013-10-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016106604A1 (fr) * 2014-12-30 2016-07-07 华为技术有限公司 Procédé et dispositif de transmission de signal
CN107923963A (zh) * 2015-05-29 2018-04-17 维里蒂工作室股份公司 用于调度定位信号传输和操作自定位装置的方法和系统

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
NOKIA SIEMENS NETWORKS: "Scheduling and Rank Selection for HSUPA MIMO", 3GPP DRAFT; R1-121733, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Jeju, South Korea; 20120326 - 20120330, 21 March 2012 (2012-03-21), XP050600048 *
QUALCOMM INCORPORATED: "Introduction to UL MIMO in HSPA", 3GPP DRAFT; R1-106336_INTRO_UL_MIMO_HSPA, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Jacksonville, USA; 20101115, 10 November 2010 (2010-11-10), XP050468242 *
QUALCOMM INCORPORATED: "Link Evaluation of UL MIMO using different link simulation methodologies", 3GPP DRAFT; R1-110681_UL_MIMO_LINK_METHODOLOGIES, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Taipei, Taiwan; 20110221, 18 February 2011 (2011-02-18), XP050490839 *
QUALCOMM INCORPORATED: "System Simulation Framework for UL MIMO", 3GPP DRAFT; R1-110685 SYSTEM SIMULATION FRAMEWORK UL MIMO, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Taipei, Taiwan; 20110221 - 20110225, 18 February 2011 (2011-02-18), XP050599190 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016106604A1 (fr) * 2014-12-30 2016-07-07 华为技术有限公司 Procédé et dispositif de transmission de signal
CN107923963A (zh) * 2015-05-29 2018-04-17 维里蒂工作室股份公司 用于调度定位信号传输和操作自定位装置的方法和系统
CN107923963B (zh) * 2015-05-29 2022-04-19 维里蒂工作室股份公司 用于调度定位信号传输和操作自定位装置的方法和系统

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