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WO2008152130A1 - Appareil, procédé et programme informatique fournissant une commande de décodage des informations système - Google Patents

Appareil, procédé et programme informatique fournissant une commande de décodage des informations système Download PDF

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Publication number
WO2008152130A1
WO2008152130A1 PCT/EP2008/057475 EP2008057475W WO2008152130A1 WO 2008152130 A1 WO2008152130 A1 WO 2008152130A1 EP 2008057475 W EP2008057475 W EP 2008057475W WO 2008152130 A1 WO2008152130 A1 WO 2008152130A1
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WIPO (PCT)
Prior art keywords
system information
determining
read
neighbor cell
response
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.)
Ceased
Application number
PCT/EP2008/057475
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English (en)
Inventor
Volker Breuer
Jarkko T. Koskela
Sari Nielsen
Benoist Sebire
Antti Toskala
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.)
Nokia Solutions and Networks Oy
Original Assignee
Nokia Siemens Networks Oy
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Filing date
Publication date
Application filed by Nokia Siemens Networks Oy filed Critical Nokia Siemens Networks Oy
Publication of WO2008152130A1 publication Critical patent/WO2008152130A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point

Definitions

  • the exemplary and non-limiting embodiments of this invention relate generally to wireless communication systems, methods, devices and computer program products and, more specifically, relate to techniques for mobility handling in E-UTRAN.
  • E-UTRA evolved UMTS terrestrial radio access
  • E-UTRAN evolved UMTS terrestrial radio access network eNB E-UTRAN Node B
  • P-SCH primary shared channel PDA personal digital assistant RRC radio resource connection / control RSRP reference symbol received power
  • UE user equipment such as a mobile station or mobile terminal
  • Network-LTE may be referred to as 3.9G
  • E-UTRAN also referred to as UTRAN-LTE
  • 3GPP 3rd Generation Partnership Project
  • a cell specific offset was agreed to be introduced on the P-BCH of each cell. This offset is preferably taken into account by the UE when performing measurements or ranking the cells for re-selection purposes.
  • the offset is preferably read by the UE before reporting neighbor cells.
  • the offset is preferably read by the UE before ranking. Additionally it may be necessary for UE to read other system information for CSG cells as it may be required that the UE checks access restrictions for CSG cells before reporting them to the NW and possibly avoiding measurements of cells that the UE does not have access rights for.
  • the cell specific offset is provided in the intra-frequency neighbor cell list which does not exist in LTE.
  • a UE In UMTS, a UE first ranks the neighbor cell based upon if that neighbor cell is a suitable cell and a candidate for actual re-selection and afterwards (after the re-selection) the BCH of only that selected cell is decoded.
  • LTE typically there is no intra-frequency neighbor cell list (at least a regular neighbor list for identifying a new neighbor cell) in the serving cell (for reducing the BCH load) .
  • the BCH decoding of the neighbor is preferably performed prior to ranking and deciding whether to perform a re-selection or prior to measurement reporting, for example, in the handover preparation phase.
  • Reading the P-BCH from a neighbor cells before a measurement report can be sent causes the following problems: 1) extra delay for measurement reports in the intra-frequency cell case due to both P-BCH scheduling delays as well as possible decoding errors in a neighbor cell P-BCH reception; and 2) increased power consumption due to frequent P-BCH decoding.
  • neighbor cell decoding is also likely to have a significant negative impact on terminal power consumptions during DRX/DTX operations (active and idle) .
  • DRX/DTX operations active and idle
  • UE power consumption increases as the UE is required to keep the receiver open for extended periods for P-BCH decoding.
  • terminals with better cell identification performance suffer more.
  • BCH decoding is more critical in LTE than in UMTS in general due to missing spreading gain, etc.
  • An exemplary embodiment in accordance with this invention is a method for mobility handling.
  • the method includes detecting a neighbor cell. Determining whether to read system information from a neighbor cell broadcast channel of the neighbor cell, and in response to determining that the system information should be read, reading the system information is included in the method.
  • a further exemplary embodiment in accordance with this invention is an apparatus for mobility handling.
  • the apparatus includes a receiver and at least one processor.
  • the receiver is configured to detect a neighbor cell.
  • the at least one processor is configured to determine whether to read system information from a neighbor cell broadcast channel of the neighbor cell and, in response to determining that the system information should be read, to read the system information via the receiver.
  • An additional exemplary embodiment in accordance with this invention is a computer readable medium embodying a computer program product including program instructions which are operable to control a data processor for mobility handling.
  • the program instructions include detecting a neighbor cell. Determining whether to read system information from a neighbor cell broadcast channel of the neighbor cell, and in response to determining that the system information should be read, reading the system information are included.
  • a further exemplary embodiment in accordance with this invention is an apparatus for mobility handling.
  • the apparatus includes means for detecting a neighbor cell.
  • First determining means for determining whether to read system information from a neighbor cell broadcast channel of the neighbor cell are included.
  • the apparatus includes means for reading the system information in response to the first determining means determining that the system information should be read.
  • Figure 1 shows a simplified block diagram of various electronic devices that are suitable for use in practicing the exemplary embodiments of this invention.
  • Figure 2 shows a logic flow diagram in accordance with exemplary embodiment of a method, and a computer program product, in accordance of this invention.
  • Figure 3 shows a logic flow diagram in accordance with exemplary embodiment of a method, and a computer program product, in accordance of this invention.
  • Figure 4 shows a logic flow diagram in accordance with exemplary embodiment of a method, and a computer program product, in accordance of this invention.
  • Figure 5 shows a logic flow diagram in accordance with exemplary embodiment of a method, and a computer program product, in accordance of this invention.
  • the exemplary embodiments of this invention pertain generally to mobility handling in E-UTRAN (3GPP Release 8) . Mobility is based on measurements made by the UE. In the RRC_CONNECTED state, the UE identifies, measures, and reports neighbor cells for handover purposes. In the RRC_IDLE state, the UE identifies, measures, and ranks the cells for cell reselection purposes.
  • the exemplary embodiments of this invention provide a means to overcome the problems listed above, among other advantages.
  • a flag on the P-BCH indicates whether neighbor cell P-BCH decoding is requested. Additionally, a second flag may be used for indicating the need for reading other system information (e.g., SI, SU-I, etc.) of the neighbor cell (s) . The same flag can be used for indicating a request to read the P-BCH and/or the other system information of the neighbor cell (s) .
  • a quality and/or signal strength threshold indicates when the UE selectively performs the decoding of the P-BCH and/or the other system information of the neighbor cell (s) .
  • an absolute number of neighbor cells from which the UE reads the P-BCH and/or the other system information is used. Combinations of these alternatives may be considered. For example when there are many cells which are above a quality threshold, the UE may read the P-BCH or the other system information from, for example, only the five best detected cells.
  • a wireless network 12 is adapted for communication with user equipment (UE 14) 14 via an access node (AN) 16.
  • the UE 14 includes a data processor (DP) 18, a memory (MEM) 20 coupled to the DP 18, and a suitable RF transceiver (TRANS) 22 (having a transmitter (TX) and a receiver (RX)) coupled to the DP 18.
  • the MEM 20 stores a program (PROG) 24.
  • the TRANS 22 is for bidirectional wireless communications with the AN 16. Note that the TRANS 22 has at least one antenna to facilitate communication.
  • the AN 16 includes a data processor (DP) 26, a memory (MEM) 28 coupled to the DP 26, and a suitable RF transceiver (TRANS) 30 (having a transmitter (TX) and a receiver (RX)) coupled to the DP 26.
  • the MEM 28 stores a program (PROG) 32.
  • the TRANS 30 is for bidirectional wireless communications with the UE 14. Note that the TRANS 30 has at least one antenna to facilitate communication.
  • the AN 16 is coupled via a data path 34 to one or more external networks or systems, such as the internet 36, for example. At least one of the PROGs 24, 32 is assumed to include program instructions that, when executed by the associated DP, enable the electronic device to operate in accordance with exemplary embodiments of this invention, as discussed herein.
  • the various embodiments of the UE 14 can include, but are not limited to, cellular phones, personal digital assistants (PDAs) having wireless communication capabilities, portable computers having wireless communication capabilities, image capture devices such as digital cameras having wireless communication capabilities, gaming devices having wireless communication capabilities, music storage and playback appliances having wireless communication capabilities, Internet appliances permitting wireless Internet access and browsing, as well as portable units or terminals that incorporate combinations of such functions .
  • PDAs personal digital assistants
  • portable computers having wireless communication capabilities
  • image capture devices such as digital cameras having wireless communication capabilities
  • gaming devices having wireless communication capabilities
  • music storage and playback appliances having wireless communication capabilities
  • Internet appliances permitting wireless Internet access and browsing, as well as portable units or terminals that incorporate combinations of such functions .
  • the MEMs 20, 28 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, as non-limiting examples.
  • the DPs 18, 26 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 DSPs
  • processors based on a multi-core processor architecture, as non-limiting examples.
  • the embodiments of this invention may be implemented by computer software executable by one or more of the DPs 18, 26 of the UE 14 and the AN 16, or by hardware, or by a combination of software and hardware.
  • At least one bit is added to the P-BCH, which indicates to all UE 14s camped/served on/by that cell whether neighbor cell P-BCH decoding is required.
  • Another bit/flag can indicate a need for reading other system information of the neighbor cell (s) .
  • the bit indicating whether system information (e.g., SI, SU-I or any other SU) decoding is required can be frequency/cell dependant, for example, CSG (or home eNB) cells may require reading of system information and it would be beneficial to indicate such frequencies/cells which require system information reading of the neighbor cell (s) .
  • the UE 14 is not mandated to always decode the P-BCH and/or other system information of the neighbor cell(s) for the ranking of the intra-frequency cells, as in most cases the offset may be zero (in case an operator does not intend to use it) .
  • specific offset values may not be used, whilst in a dense urban setting the need for offset values in a limited range may exist.
  • the UE 14 is constructed to contain circuitry configured to detect a particular bit flag of the P-BCH of the serving cell and circuitry configured to provide a determination of which detected neighbor cells from which to read the P-BCH and/or the other system information for determining an offset identification, where said determination is made based upon said bit (or flag) .
  • (C) means for determining if the bit flag indicates decoding is required
  • a UE 14 constructed to contain circuitry configured to provide a stored threshold value; circuitry configured to provide at least one measurement quantity of a neighbor cell; and circuitry configured to provide a determination of which detected neighbor cells from which to decode and read the P-BCH and/or the other system information for determining an offset identification, where said determination is made based upon at least one of said measurement quantity.
  • (A) means for detecting a neighboring cell
  • (B) means for determining at least one measurement quantity for a neighbor cell
  • (C) means for determining if said measurement quantity (or quantities) meets a given threshold
  • (D) means for decoding and reading the P-BCH and/or other system information, and based upon said determination selectively decoding and reading the P-BCH and/or other system information for determining an offset identification.
  • the UE 14 of the previous paragraphs is one where the TRANS 22 is configured to receive a signal via RRC (in dedicated signalling or via broadcast information) indicating a new threshold to be used and replacing the previous threshold with the new one. This can also be provided by means of a neighbor cell list, a list of neighbors for which the UE 14 is requested to consider.
  • RRC dedicated signalling or via broadcast information
  • An additional exemplary embodiment the UE 14 of the previous paragraphs is one where there are separate threshold values for reading the P-BCH or the other system information. Separate thresholds can be defined against the serving cell level and neighbor cell level, for example based on reference symbol measurements, such as the RSRP (reference symbol received power) measurements. It should be appreciated that many other UE measurements can be used for these thresholds.
  • the UE 14 of the previous paragraphs is one that makes use of a relative decoding threshold.
  • This can be a flexible level considering the maximum configured neighbor cell offset, i.e., the threshold may vary for different scenarios in dependence of the maximum offset introduced for any of the visible neighbors. Additionally, the relative offset threshold for decoding may depend on the actual setting of the maximum used offset.
  • An additional exemplary embodiment the UE 14 of the previous paragraphs is one that contains circuitry configured to create and/or sort a list of neighboring cells according to at least one measurement quantity for that cell.
  • a UE 14 constructed to contain circuitry configured to provide a threshold value and configured to provide a determination of which detected neighbor cells from which to read the P-BCH and/or the other system information for determining an offset identification, where said determination is made based upon the threshold value above which no further cells are read.
  • (A) means for detecting a neighboring cell
  • (B) means for determining the number of cells being read
  • (C) means for determining if the number of cells being read exceeds a given threshold
  • (D) means for decoding the cell and reading the P-BCH and/or other system information, and based upon said determination selectively decoding and reading the P-BCH and/or the other system information for determining an offset identification.
  • the UE 14 of the previous paragraphs is one where the TRANS 22 is configured to receive a signal (either via dedicated or broadcast information) indicating a new threshold to be used and replacing the previous threshold with the new one.
  • a signal either via dedicated or broadcast information
  • This can also be provided by means of a neighbor cell list, a list of neighbors for which the UE 14 is requested to consider.
  • an access node 16 constructed to contain circuitry configured to produce at least one bit to be added to the P-BCH, which indicates whether neighbor cell P-BCH decoding is required, and circuitry configured to transmit said resulting P-BCH.
  • an access node 16 constructed to contain circuitry configured to create a message, which indicates at least one signal or quality threshold value to be used by a UE 14 for determining which cells to decode for making mobility decisions, and circuitry configured to transmit said message.
  • An additional exemplary embodiment the access node 16 of the previous paragraphs is one where the transmitter is configured to transmit the message using dedicated signalling or via broadcast information.
  • a threshold value may be any of the following values: minimum measurement quantities of cells to be used; cell level; RSRP; etc.
  • (B) means for transmitting said message.
  • an access node 16 constructed to contain circuitry configured to produce a neighbor cell list, which indicates a list of neighbor cells which a UE
  • said list includes associated threshold information describing a maximum number of cells to decode, and circuitry configured to transmit said list.
  • the threshold may be checked only if the introduced bit on the P-BCH indicates that P-BCH decoding of the neighbor cell is required.
  • An exemplary embodiment in accordance with this invention is a method for mobility handling.
  • the method includes detecting a neighbor cell. Determining whether to read system information from a neighbor cell broadcast channel of the neighbor cell, and in response to determining that the system information should be read, reading the system information is included in the method.
  • determining whether to read the system information includes detecting a flag in a transmission in a broadcast channel for a serving cell. Determining whether the flag indicates reading the system information of the neighbor cell is required and in response to determining that the flag indicates reading the system information of the neighbor cell is required, determining that the system information should be read is included.
  • determining whether to read system information includes determining at least one measurement quantity for the neighbor cell.
  • the at least one threshold value may be a signal strength threshold and/or a signal quality threshold.
  • the method may also include receiving the at least one threshold value from a serving access station.
  • determining whether to read system information includes determining whether a number of neighbor cell being read exceeds a threshold number and in response to determining that the number of neighbor cell being read does not exceed the threshold number, determining that the system information should be read.
  • the method may also include receiving the threshold number from a serving access station.
  • reading the system information of the neighbor cell includes decoding a neighbor cell primary broadcast channel transmission.
  • the method including in response to reading the system information, including the system information in a measurement report of neighbor cells.
  • the method may also include transmitting the measurement report to an access station.
  • the system information in the measurement report may be prioritizing.
  • the method including in response to reading the system information, ranking the neighbor cells for re- selection .
  • the system information comprises a cell specific offset.
  • a further exemplary embodiment in accordance with this invention is an apparatus for mobility handling.
  • the apparatus includes a receiver and at least one processor.
  • the receiver is configured to detect a neighbor cell.
  • the at least one processor is configured to determine whether to read system information from a neighbor cell broadcast channel of the neighbor cell and, in response to determining that the system information should be read, to read the system information via the receiver.
  • the at least one processor is further configured to detect a flag in a transmission in a broadcast channel for a serving cell via the receiver, to determine whether the flag indicates reading the system information of the neighbor cell is required and, in response to determining that the flag indicates reading the system information of the neighbor cell is required, to determine that the system information should be read.
  • the at least one processor is further configured to determine at least one measurement quantity for the neighbor cell, to determine whether the at least one measurement quantity meets at least one threshold value and, in response to determining that the at least one measurement quantity meets the at least one threshold value, to determine that the system information should be read.
  • the at least one threshold value may be a signal strength threshold and/or a signal quality threshold.
  • the at least one processor is further configured to receive the at least one threshold value from a serving access station via the receiver.
  • the at least one processor is further configured to determine whether a number of neighbor cell being read exceeds a threshold number and, in response to determining that the number of neighbor cell being read does not exceed the threshold number, to determine that the system information should be read.
  • the at least one processor may further be configured to receive the threshold number from a serving access station via the receiver .
  • reading the system information of the neighbor cell includes decoding a neighbor cell primary broadcast channel transmission.
  • the at least one processor is further configured, in response to reading the system information, to include the system information in a measurement report of neighbor cells.
  • the apparatus may also include a transmitter to transmit the measurement report to an access station.
  • the at least one processor may further be configured to prioritize system information in the measurement report.
  • the at least one processor is further configured, in response to reading the system information, to rank the neighbor cells for re-selection.
  • system information comprises a cell specific offset .
  • An additional exemplary embodiment in accordance with this invention is a computer readable medium embodying a computer program product including program instructions which are operable to control a data processor for mobility handling.
  • the program instructions include detecting a neighbor cell. Determining whether to read system information from a neighbor cell broadcast channel of the neighbor cell, and in response to determining that the system information should be read, reading the system information are included.
  • determining whether to read the system information includes: detecting a flag in a transmission in a broadcast channel for a serving cell, determining whether the flag indicates reading the system information of the neighbor cell is required and, in response to determining that the flag indicates reading the system information of the neighbor cell is required, determining that the system information should be read.
  • determining whether to read system information includes determining at least one measurement quantity for the neighbor cell, determining whether the at least one measurement quantity meets at least one threshold value and, in response to determining that the at least one measurement quantity meets the at least one threshold value, determining that the system information should be read.
  • the at least one threshold value may be a signal strength threshold and/or a signal quality threshold.
  • the program instructions may include receiving the at least one threshold value from a serving access station.
  • determining whether to read system information includes determining whether a number of neighbor cell being read exceeds a threshold number and, in response to determining that the number of neighbor cell being read does not exceed the threshold number, determining that the system information should be read.
  • the program instructions may include receiving the threshold number from a serving access station.
  • reading the system information of the neighbor cell includes decoding a neighbor cell primary broadcast channel transmission.
  • the program instructions also include, in response to reading the system information, including the system information in a measurement report of neighbor cells. Transmitting the measurement report to an access station may also be included.
  • the program instructions also include prioritizing system information in the measurement report.
  • the program instructions also include, in response to reading the system information, ranking the neighbor cells for re-selection.
  • system information comprises a cell specific offset.
  • a further exemplary embodiment in accordance with this invention is an apparatus for mobility handling.
  • the apparatus includes means for detecting a neighbor cell.
  • First determining means for determining whether to read system information from a neighbor cell broadcast channel of the neighbor cell are included.
  • the apparatus includes means for reading the system information in response to the first determining means determining that the system information should be read.
  • the first determining means includes means for detecting a flag in a transmission in a broadcast channel for a serving cell and second determining means for determining whether the flag indicates reading the system information of the neighbor cell is required.
  • the first determining means determines that that the system information should be read in response to the second determining means determining that the flag indicates reading the system information of the neighbor cell is required.
  • the first determining means includes means for determining at least one measurement quantity for the neighbor cell and second determining means for determining whether the at least one measurement quantity meets at least one threshold value.
  • the first determining means determines that the system information should be read in response to the second determining means determining that the at least one measurement quantity meets the at least one threshold value.
  • the first determining means includes second determining means for determining whether a number of neighbor cell being read exceeds a threshold number. The first determining means determines that the system information should be read in response to the second determining means determining that the number of neighbor cell being read does not exceed the threshold number.
  • the apparatus includes means for including the system information in a measurement report of neighbor cells and means for transmitting the measurement report.
  • system information comprises a cell specific offset .
  • the exemplary embodiments of this invention provide a method, apparatus and computer program product (s) to provide enhanced mobility handling in E-UTRAN.
  • connection means any connection or coupling, either direct or indirect, between two or more elements, and may encompass the presence of one or more intermediate elements between two elements that are “connected” or “coupled” together.
  • the coupling or connection between the elements can be physical, logical, or a combination thereof.
  • two elements may be considered to be “connected” or “coupled” together by the use of one or more wires, cables and/or printed electrical connections, as well as by the use of electromagnetic energy, such as electromagnetic energy having wavelengths in the radio frequency region, the microwave region and the optical (both visible and invisible) region, as several non-limiting and non- exhaustive examples.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne, dans un mode de réalisation, un procédé pour la gestion de la mobilité. Le procédé passe par la détection d'une cellule voisine. En réponse à la détermination du fait que les informations système doivent être lues, les informations du système sont lues. Le procédé peut inclure la détection d'une balise dans la transmission d'un canal de diffusion pour une cellule de service et la détermination du fait que la balise indique si oui ou non la lecture des informations système est nécessaire, la détermination d'au moins une quantité de mesure pour la cellule voisine et la détermination du fait que oui ou non la quantité de mesure respecte au moins une valeur seuil, enfin la détermination du fait que oui ou non un nombre de cellules voisines lues dépasse un nombre seuil. Les informations système peuvent inclure un décalage spécifique à une cellule de la cellule voisine. Les informations système peuvent être incluses dans un rapport de mesure des cellules voisines ou utilisées pour classer les cellules voisines à des fins de nouvelle sélection. L'invention concerne également un appareil et des supports lisibles par ordinateur.
PCT/EP2008/057475 2007-06-15 2008-06-13 Appareil, procédé et programme informatique fournissant une commande de décodage des informations système Ceased WO2008152130A1 (fr)

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US93465407P 2007-06-15 2007-06-15
US60/934,654 2007-06-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011005407A1 (fr) * 2009-06-23 2011-01-13 Motorola Mobility, Inc. Adaptation harq (requête hybride à répétition automatique) pour acquisition d'informations de système de cellule voisine
WO2016040812A1 (fr) * 2014-09-11 2016-03-17 Qualcomm Incorporated Lecture pré-emptive de message de surdébit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994007322A1 (fr) * 1992-09-16 1994-03-31 Telefonaktiebolaget Lm Ericsson Procede et appareil de commande de transmission dans un systeme de radiotelephone
EP1786233A2 (fr) * 2005-11-09 2007-05-16 Samsung Electronics Co., Ltd. Procédé et dispositif pour gérer des cellules voisines dans un terminal de communications mobiles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994007322A1 (fr) * 1992-09-16 1994-03-31 Telefonaktiebolaget Lm Ericsson Procede et appareil de commande de transmission dans un systeme de radiotelephone
EP1786233A2 (fr) * 2005-11-09 2007-05-16 Samsung Electronics Co., Ltd. Procédé et dispositif pour gérer des cellules voisines dans un terminal de communications mobiles

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011005407A1 (fr) * 2009-06-23 2011-01-13 Motorola Mobility, Inc. Adaptation harq (requête hybride à répétition automatique) pour acquisition d'informations de système de cellule voisine
JP2012531164A (ja) * 2009-06-23 2012-12-06 モトローラ モビリティ エルエルシー 隣接セルシステム情報の取得のためのｈａｒｑの適応
JP2013179641A (ja) * 2009-06-23 2013-09-09 Motorola Mobility Llc 隣接セルシステム情報の取得のためのｈａｒｑの適応
EP2648452A3 (fr) * 2009-06-23 2014-09-03 Motorola Mobility LLC Acquisition d'informations de système de cellule voisine dans un système de communication sans fil
US9204347B2 (en) 2009-06-23 2015-12-01 Google Technology Holdings LLC HARQ adaptation for acquisition of neighbor cell system information
US9510250B2 (en) 2009-06-23 2016-11-29 Google Technology Holdings LLC HARQ adaptation for acquisition of neighbor cell system information
US10051530B2 (en) 2009-06-23 2018-08-14 Google Technology Holdings LLC HARQ adaptation for acquisition of neighbor cell system information
WO2016040812A1 (fr) * 2014-09-11 2016-03-17 Qualcomm Incorporated Lecture pré-emptive de message de surdébit

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