WO2013173961A1 - Randomisation de brouillage - Google Patents

Randomisation de brouillage Download PDF

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Publication number
WO2013173961A1
WO2013173961A1 PCT/CN2012/075823 CN2012075823W WO2013173961A1 WO 2013173961 A1 WO2013173961 A1 WO 2013173961A1 CN 2012075823 W CN2012075823 W CN 2012075823W WO 2013173961 A1 WO2013173961 A1 WO 2013173961A1
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WO
WIPO (PCT)
Prior art keywords
shuffling
control channel
shuffling pattern
pattern parameter
downlink control
Prior art date
Application number
PCT/CN2012/075823
Other languages
English (en)
Inventor
Chunye Wang
Peter Skov
Li Zhang
Xiaoyi Wang
Frank Frederiksen
Lilei Wang
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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.)
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Priority to PCT/CN2012/075823 priority Critical patent/WO2013173961A1/fr
Publication of WO2013173961A1 publication Critical patent/WO2013173961A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0073—Allocation arrangements that take into account other cell interferences

Definitions

  • the invention relates to apparatuses, methods, systems, computer programs, computer program products and computer-readable media. Background
  • LTE Long Term Evolution
  • LTE-Advanced Long Term Evolution Advanced
  • an apparatus comprising: at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: obtain a shuffling pattern parameter for randomizing physical downlink control channel resources, and signal the shuffling pattern parameter in relation to a cell identity, by using a broadcast channel, or as user device signalling.
  • an apparatus comprising: at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: obtain a shuffling pattern parameter, obtain modulated physical downlink control channel symbols, and shuffle the modulated physical downlink control channel symbols by using the shuffling pattern parameter for randomizing physical downlink control channel resources.
  • a method comprising; obtaining a shuffling pattern parameter for randomizing physical downlink control channel resources, and signalling the shuffling pattern parameter in relation to a cell identity, by using a broadcast channel, or as user device signalling.
  • a method comprising: obtaining a shuffling pattern parameter, obtaining modulated physical downlink control channel symbols, and shuffling the modulated physical downlink control channel symbols by using the shuffling pattern parameter for randomizing physical downlink control channel resources.
  • an apparatus comprising: means for obtaining a shuffling pattern parameter for randomizing physical downlink control channel resources, and means for signalling the shuffling pattern parameter in relation to a cell identity, by using a broadcast channel, or as user device signalling.
  • an apparatus comprising: means for obtaining a shuffling pattern parameter, means for obtaining modulated physical downlink control channel symbols, and means for shuffling the modulated physical downlink control channel symbols by using the shuffling pattern parameter for randomizing physical downlink control channel resources.
  • a computer program embodied on a computer-readable storage medium, the computer program comprising program code for controlling a process to execute a process, the process comprising: obtaining a shuffling pattern parameter for randomizing physical downlink control channel resources, and signalling the shuffling pattern parameter in relation to a cell identity, by using a broadcast channel, or as user device signalling.
  • a computer program embodied on a computer-readable storage medium, the computer program comprising program code for controlling a process to execute a process, the process comprising: obtaining a shuffling pattern parameter, obtaining modulated physical downlink control channel symbols, and shuffling the modulated physical downlink control channel symbols by using the shuffling pattern parameter for randomizing physical downlink control channel resources.
  • Figure 1 illustrates an example of a system
  • Figure 2 is a flow chart
  • Figure 3 is another flow chart
  • FIG. 4 illustrates examples of apparatuses
  • FIG. 5 illustrates other examples of apparatuses.
  • Embodiments are applicable to any user device, such as a user terminal, as well as to any network element, relay node, server, node, corresponding component, and/or to any communication system or any combination of different communication systems that support required functionalities.
  • the communication system may be a wireless communication system or a communication system utilizing both fixed networks and wireless networks.
  • the protocols used, the specifications of communication systems, apparatuses, such as servers and user terminals, especially in wireless communication develop rapidly. Such development may require extra changes to an embodiment. Therefore, all words and expressions should be interpreted broadly and they are intended to illustrate, not to restrict, embodiments.
  • LTE Advanced long term evolution advanced
  • SC-FDMA single-carrier frequency-division multiple access
  • UMTS universal mobile telecommunications system
  • UTRAN radio access network
  • LTE long term evolution
  • WLAN wireless local area network
  • WiFi worldwide interoperability for microwave access
  • Bluetooth® personal communications services
  • PCS personal communications services
  • WCDMA wideband code division multiple access
  • UWB ultra-wideband
  • IMS Internet Protocol multimedia subsystems
  • orthogonal frequency division multiplexing In an orthogonal frequency division multiplexing (OFDM) system, the available spectrum is divided into multiple orthogonal sub-carriers. In OFDM systems, the available bandwidth is divided into narrower sub-carriers and data is transmitted in parallel streams. Each OFDM symbol is a linear combination of signals on each of the subcarriers. Further, each OFDM symbol is preceded by a cyclic prefix (CP), which is used to decrease Inter-Symbol Interference. Unlike in OFDM, SC-FDMA subcarriers are not independently modulated.
  • CP cyclic prefix
  • a (e)NodeB (“e” stands for evolved) needs to know channel quality of each user device and/or the preferred precoding matrices (and/or other multiple input-multiple output (MIMO) specific feedback information, such as channel quantization) over the allocated sub-bands to schedule transmissions to user devices. Such required information is usually signalled to the (e)NodeB.
  • e stands for evolved
  • MIMO multiple input-multiple output
  • Figure 1 depicts examples of simplified system architectures only showing some elements and functional entities, all being logical units, whose implementation may differ from what is shown.
  • the connections shown in Figure 1 are logical connections; the actual physical connections may be different. It is apparent to a person skilled in the art that the system typically comprises also other functions and structures than those shown in Figure 1.
  • Figure 1 shows user devices 100 and 102 configured to be in a wireless connection on one or more communication channels 104 and 06 in a cell with a (e)NodeB 108 providing the cell.
  • the physical link from a user device to a (e)NodeB is called uplink or reverse link and the physical link from the NodeB to the user device is called downlink or forward link.
  • the NodeB or advanced evolved node B (eNodeB, eNB) in LTE- Advanced, is a computing device configured to control the radio resources of communication system it is coupled to.
  • the (e)NodeB may also be referred to as a base station, an access point or any other type of interfacing device including a relay station capable of operating in a wireless environment.
  • the (e)NodeB includes transceivers, for example. From the transceivers of the (e)NodeB, a connection is provided to an antenna unit that establishes bi-directional radio links to user devices.
  • the antenna unit may comprise a plurality of antennas or antenna elements.
  • the (e)NodeB is further connected to core network 110 (CN).
  • CN core network 110
  • the counterpart on the CN side can be a serving gateway (S-GW, routing and forwarding user data packets), packet data network gateway (P-GW), for providing connectivity of user devices (UEs) to external packet data networks, or mobile management entity (MME), etc.
  • S-GW serving gateway
  • P-GW packet data network gateway
  • MME mobile management entity
  • a communications system typically comprises more than one (e)NodeB in which case the (e)NodeBs may also be configured to communicate with one another over links, wired or wireless, designed for the purpose. These links may be used for signalling purposes.
  • the communication system is also able to communicate with other networks, such as a public switched telephone network or the Internet 112.
  • the communication network may also be able to support the usage of cloud services.
  • (e)NodeBs or their functionalities may be implemented by using any node, host, server or access point etc. entity suitable for such a usage.
  • the user device also called UE, user equipment, user terminal, terminal device, etc.
  • UE user equipment
  • user terminal terminal device
  • any feature described herein with a user device may be implemented with a corresponding apparatus, such as a relay node.
  • a relay node is a layer 3 relay (self-backhauling relay) towards the base station.
  • the user device typically refers to a portable computing device that includes wireless mobile communication devices operating with or without a subscriber identification module (SIM), including, but not limited to, the following types of devices: a mobile station (mobile phone), smartphone, personal digital assistant (PDA), handset, device using a wireless modem (alarm or measurement device, etc.), laptop and/or touch screen computer, tablet, game console, notebook, and multimedia device.
  • SIM subscriber identification module
  • the user device (or in some embodiments a layer 3 relay node) is configured to perform one or more of user equipment functionalities.
  • the user device may also be called a subscriber unit, mobile station, remote terminal, access terminal, user terminal or user equipment (UE) just to mention but a few names or apparatuses.
  • UE user equipment
  • apparatuses have been depicted as single entities, different units, processors and/or memory units (not all shown in Figure 1 ) may be implemented.
  • the depicted system is only an example of a part of a radio access system and in practise, the system may comprise a plurality of (e)NodeBs, the user device may have an access to a plurality of radio cells and the system may comprise also other apparatuses, such as physical layer relay nodes or other network elements, etc. At least one of the NodeBs or eNodeBs may be a Home(e)nodeB. Additionally, in a geographical area of a radio communication system a plurality of different kinds of radio cells as well as a plurality of radio cells may be provided.
  • Radio cells may be macro cells (or umbrella cells) which are large cells, usually having a diameter of up to tens of kilometres, or smaller cells such as micro-, femto- or picocells.
  • the (e)NodeBs of Figure 1 may provide any kind of these cells.
  • a cellular radio system may be implemented as a multilayer network including several kinds of cells. Typically, in multilayer networks, one node B provides one kind of a cell or cells, and thus a plurality of (e) Node Bs are required to provide such a network structure.
  • a network which is able to use “plug-and-play” (e)Node (e)Bs includes, in addition to Home (e)Node Bs (H(e)nodeBs), a home node B gateway, or HNB-GW (not shown in Figure 1 ).
  • HNB-GW HNB Gateway
  • a HNB Gateway (HNB-GW) which is typically installed within an operator's network may aggregate traffic from a large number of HNBs back to a core network.
  • LTE or LTE Advanced is designed to support frequency reuse-1 mechanisms to enable a universal frequency reuse pattern providing operators an improved efficiency in spectrum usage.
  • One of system design targets is to increase spectral efficiency and overall signal-to-interference and noise-ratio (SINR).
  • SINR signal-to-interference and noise-ratio
  • frequency reuse-1 adjacent sites use same frequencies, and different frequency resource users are separated by codes. Thus users at the cell edge are particularly susceptible to interference due to inter-cell interference.
  • Inter-cell radio resource management is used to coordinate resource allocation between different cell sites and to limit the inter-cell interference. Such methods are called inter-cell interference control (ICIC).
  • ICIC inter-cell interference control
  • Discarding spatial domain schemes basically two different principles for inter-cell interference control and/or mitigation are provided which both rely on the assumption that unused resources exist in an interfering cell, namely resource coordination and resource randomization.
  • Some embodiments are disclosed in further details in relation to Figures 2 and 3. Some embodiments are especially suitable for randomizing physical downlink control channel resources when spatial reuse within a cell is provided.
  • One embodiment may be carried out by a device configured to operate as a network apparatus, such as a server, (e)node or host.
  • the embodiment may also be provided as a cloud service.
  • the embodiment starts in block 200 of Figure 2.
  • block 202 a shuffling pattern parameter for randomizing physical downlink control channel resources is obtained.
  • the basic principle is that a shuffling pattern parameter controls a shuffling pattern applied to one or more physical resource blocks on (e) PDCCH.
  • resource coordination may include frequency allocation coordination, such as not reusing same frequency in adjacent cells.
  • a shuffling pattern parameter is a cell identity (cell ID)
  • cell ID cell identity
  • a cluster of cells and/or transmission points (TPs) which coordinate interference with each other must use a same shuffling pattern.
  • the number of cells and/or TPs per a coordination set or group must be a finite number and 3 is a typical value.
  • different shuffling patterns must usually be used between coordination sets, in other words, those cells and/or TPs which are not capable to mutual coordination or not configured to carry out it.
  • the shuffling pattern parameter may be obtained by simulations, for instance.
  • the shuffling pattern parameter may be modulo(celMdentity, 3), e.g. if a cell identity is 1 , 2, 3, 4, 5 or 6, the shuffling pattern parameter is 0, 1 , 2, 0, 1 , or 2, respectively (this example is suitable for a macro cell).
  • a node may select any arbitrary number to be used in determining a shuffling pattern parameter. For instance, cell identity * 3 + 0 for the first group of TPs and cell identity*3+1 for the second group of TPs, and cell identity*3 + 2 for the last group of TPs, assuming the cell at issue includes 3 TP groups.
  • a node or host may set or update the shuffling pattern parameter for example by taking a suitable value from a memory table.
  • the shuffling pattern parameter is signalled in relation to a cell identity, by using a broadcast channel, or as user device signalling.
  • a shuffling pattern parameter may be signalled on or for a common control channel.
  • a user device may access the common control channel and obtain the shuffling pattern parameter for a dedicated control channel.
  • the shuffling pattern parameter may be signalled to a user device in a plurality of manners.
  • DCI downlink control information
  • two methods are provided. Namely, a backward compatible way, wherein the shuffling pattern parameter may be signalled as a function of a cell identity, such as mod(CelllD,3), see above, or it may be a cell identity.
  • the shuffling pattern parameter may be conveyed by a master information block (MIB) on a broadcast channel (BCH).
  • MIB master information block
  • BCH broadcast channel
  • the shuffling pattern parameter may be derived by the user device based on signaling from a (e)NB (potentially involving some implicit mapping by the user device). For instance, in the 3GPP scenario 4, one cell comprises a plurality of groups of TPs. Thus all these TP groups share a same cell identity (cell ID). In this case, a (e) NodeB may determine or select a shuffling parameter and a user device may obtain the shuffling parameter from the (e)NodeB. Thus, when the user device monitors a dedicated control DCI, it already has the shuffling parameter available. Another option is that the shuffling pattern parameter may be derived in a manner similar to a demodulation reference signals (D -RS) sequence initializer c in i t .
  • D -RS demodulation reference signals
  • each physical resource block has a different shuffling parameter.
  • the embodiment ends in block 206.
  • the embodiment is repeatable in many ways. One example is shown by arrow 208 in Figure 2.
  • One embodiment may be carried out by a device configured to operate as a user device.
  • the embodiment starts in block 300 of Figure 3.
  • a shuffling pattern parameter may be obtained from a (e)NodeB by means of signalling.
  • DCI downlink control information
  • two methods are provided. Namely, a backward compatible way, wherein the shuffling pattern parameter may be signalled as a function of a cell identity, such as mod(CelllD,3) or it may be a cell identity.
  • the shuffling pattern parameter may be conveyed by a master information block (MIB) on a broadcast channel (BCH).
  • MIB master information block
  • BCH broadcast channel
  • a shuffling pattern parameter may be derived by user device based on signaling from a (e)NB (potentially involving some implicit mapping by the user device). For instance, in the 3GPP scenario 4, one cell comprises a plurality of groups of TPs. Thus all these TP groups share a same ceil identity (cell ID), In this case, a (e) NodeB may determine or select a shuffling parameter and a user device may obtain the shuffling parameter from the (e)NodeB. Thus, when the user device monitors a dedicated control DCI, it already has the shuffling parameter available.
  • shuffling pattern parameter may be derived similar to a demodulation reference signals (DM-RS) sequence initializer c in i t .
  • DM-RS demodulation reference signals
  • modulated physical downlink control channel symbols are obtained.
  • An ePDCCH DCI (“e” stands for “evolved”) message is usually encoded with 1/3 convolution coder, repeated or punctured by rate matching and then modulated into quadrature phase shift keying (QPSK) symbols.
  • modulated symbols may be obtained from a processor carrying out modulation, for example.
  • Jn block, 306 the modulated physical downlink control channel symbols are shuffled by using the shuffling pattern parameter for randomizing physical downlink control channel resources.
  • modulated ePDCCH symbols Before multiplexing modulated ePDCCH symbols, they may be shuffled with modulated symbols of other DCI messages. It should be understood that "other" DCI symbols may be set zeroes especially when capacity is not full used.
  • the basic principle is that a shuffling pattern parameter controls a shuffling pattern applied for one or more physical resource blocks on (e) PDCCH.
  • resource coordination may include frequency allocation coordination, such as not reusing same frequency in adjacent cells.
  • a shuffling pattern parameter is a cell identity ⁇ cell ID
  • randomization is provided across different cells.
  • modulated symbols are represented by NxM matrix A ⁇ 0,0), A(1 ,0),...A(N,M), wherein N is the number of modulated symbols per a DCI message, such as 36, and M is the maximum number of DCI messaged, the typical value is 4.
  • one column represents one enhanced control channel element eCCE.
  • one or more columns may be set zeros. For higher aggregation levels, one DCI may occupy more than one column.
  • the output of the exemplary shuffling is represented by NxM matrix
  • F is a shuffling pattern, comprising integers between 1 and the size of the matrix A.
  • F carries out a sorting operation to a sequence. Sorting may be carried out by using a stable sorting algorithm which maintains the relative order of records or values with equal numbers, such as by sorting them in an ascending order. Stable sorting is usually needed, if equal keys exist. For example, keys are X and Y, and X appears before Y in the original list. Then stable sorting always makes X appear before Y in the sorted list. It should be appreciated that when equal elements are indistinguishable, stability of sorting usually plays no role.
  • a cluster of cells and/or transmission points (TPs) which coordinate interference with each other must use a same shuffling pattern.
  • the number of cells and/or TPs per a coordination set or group must be a finite number and 3 is a typical value.
  • different shuffling patterns must usually be used between coordination sets, in other words, those cells and/or TPs which are not capable to mutual coordination or not configured to carry out it.
  • the embodiment ends in block 308.
  • the embodiment is repeatable in many ways. One example is shown by arrow 310 in Figure 3.
  • steps/points, signaling messages and related functions described above in Figures 2 and 3 are in no absolute chronological order, and some of the steps/points may be performed simultaneously or in an order differing from the given one. Other functions may also be executed between the steps/points or within the steps/points and other signaling messages sent between the illustrated messages. Some of the steps/points or part of the steps/points can also be left out or replaced by a corresponding step/point or part of the step/point.
  • conveying, broadcasting, signalling transmitting and/or receiving may herein mean preparing a data conveyance, broadcast, transmission and/or reception, preparing a message to be conveyed, broadcasted, signalled, transmitted and/or received, or physical transmission and/or reception itself, etc. on a case by case basis.
  • the same principle may be applied to terms transmission and reception as well.
  • An embodiment provides an apparatus which may be any node, host, server, web stick or any other suitable apparatus capable to carry out processes described above in relation to Figure 2.
  • an apparatus may include or otherwise be in communication with a control unit, one or more processors or other entities capable of carrying out operations according to the embodiments described by means of Figure 2. It should be understood that each block of the flowchart of Figure 2 and any combination thereof may be implemented by various means or their combinations, such as hardware, software, firmware, one or more processors and/or circuitry.
  • Figure 4 illustrates a simplified block diagram of an apparatus according to an embodiment.
  • apparatus 400 such as a node, including facilities in control unit 404 (including one or more processors, for example) to carry out functions of embodiments according to Figure 2.
  • the facilities may be software, hardware or combinations thereof as described in further detail below.
  • block 406 includes parts/units/modules needed for reception and transmission, usually called a radio front end, RF-parts, radio parts, radio head, etc.
  • apparatus 400 may include at least one processor 404 and at least one memory 402 including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: obtain a shuffling pattern parameter for randomizing physical downlink control channel resources, and signal the shuffling pattern parameter in relation to a cell identity, by using a broadcast channel, or as user device signaling.
  • Yet another example of an apparatus comprises means 404 (406) for obtaining a shuffling pattern parameter for randomizing physical downlink control channel resources, and means 404 (406) for signalling the shuffling pattern parameter in relation to a cell identity, by using a broadcast channel, or as user device signalling
  • Yet another example of an apparatus comprises an obtaining unit configured to obtain a shuffling pattern parameter for randomizing physical downlink control channel resources, and a signalling unit configured to signal the shuffling pattern parameter in relation to a cell identity, by using a broadcast channel, or as user device signalling.
  • apparatuses may include or be coupled to other units or modules etc., such as radio parts or radio heads, used in or for transmission and/or reception. This is depicted in Figure 4 as optional block 406.
  • An embodiment provides an apparatus which may be user device, such as a smart phone or any other suitable apparatus capable to carry out processes described above in relation to Figure 3. It should be appreciated that an apparatus may include or otherwise be in communication with a control unit, one or more processors or other entities capable of carrying out operations according to the embodiments described by means of Figure 3. It should be understood that each block of the flowchart of Figure 3 and any combination thereof may be implemented by various means or their combinations, such as hardware, software, firmware, one or more processors and/or circuitry.
  • Figure 5 illustrates a simplified block diagram of an apparatus according to an embodiment.
  • apparatus 500 such as user device or web stick
  • facilities in control unit 504 including one or more processors, for example
  • the facilities may be software, hardware or combinations thereof as described in further detail below.
  • block 506 includes parts/units/modules needed for reception and transmission, usually called a radio front end, RF-parts, radio parts, radio head, etc.
  • apparatus 500 may include at least one processor 504 and at least one memory 502 including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to; obtain a shuffling pattern parameter, obtain modulated physical downlink control channel symbols, and shuffle the modulated physical downlink control channel symbols by using the shuffling pattern parameter for randomizing physical downlink control channel resources.
  • Yet another example of an apparatus comprises means 504 (506) for obtaining a shuffling pattern parameter, means 504 for obtaining modulated physical downlink control channel symbols, and means 504 for shuffling the modulated physical downlink control channel symbols by using the shuffling pattern parameter for randomizing physical downlink control channel resources.
  • Yet another example of an apparatus comprises an obtaining unit configured to obtain a shuffling pattern parameter and a shuffling unit configured to obtain modulated physical downlink control channel symbols and shuffle the modulated physical downlink control channel symbols by using the shuffling pattern parameter for randomizing physical downlink control channel resources.
  • apparatuses may include or be coupled to other units or modules etc., such as radio parts or radio heads, used in or for transmission and/or reception. This is depicted in Figure 5 as optional block 506.
  • An apparatus may in general include at least one processor, controller or a unit designed for carrying out control functions operably coupled to at least one memory unit and to various interfaces.
  • the memory units may include volatile and/or non-volatile memory.
  • the memory unit may store computer program code and/or operating systems, information, data, content or the like for the processor to perform operations according to embodiments.
  • Each of the memory units may be a random access memory, hard drive, etc.
  • the memory units may be at least partly removable and/or detachably operationally coupled to the apparatus.
  • the memory may be of any type suitable for the current technical environment and it may be implemented using any suitable data storage technology, such as semiconductor-based technology, flash memory, magnetic and/or optical memory devices.
  • the memory may be fixed or removable.
  • the apparatus may be, include or be associated with at least one software application, module, unit or entity configured as arithmetic operation, or as a program (including an added or updated software routine), executed by at least one operation processor.
  • Programs also called program products or computer programs, including software routines, applets and macros, may be stored in any apparatus-readable data storage medium and they include program instructions to perform particular tasks.
  • Computer programs may be coded by a programming language, which may be a high-level programming language, such as objective-C, C, C++, C#, Java, etc., or a low-level programming language, such as a machine language, or an assembler.
  • routines may be implemented as added or updated software routines, application circuits (ASIC) and/or programmable circuits. Further, software routines may be downloaded into an apparatus.
  • the apparatus such as a node device, or a corresponding component, may be configured as a computer or a microprocessor, such as single-chip computer element, or as a chipset, including at least a memory for providing storage capacity used for arithmetic operation and an operation processor for executing the arithmetic operation.
  • Embodiments provide computer programs embodied on a distribution medium, comprising program instructions which, when loaded into electronic apparatuses, constitute the apparatuses as explained above.
  • the distribution medium may be a non-transitory medium.
  • inventions provide computer programs embodied on a computer readable storage medium, configured to control a processor to perform embodiments of the methods described above.
  • the computer readable storage medium may be a non-transitory medium.
  • the computer program may be in source code form, object code form, or in some intermediate form, and it may be stored in some sort of carrier, distribution medium, or computer readable medium, which may be any entity or device capable of carrying the program.
  • carrier include a record medium, computer memory, read-only memory, photoelectrical and/or electrical carrier signal, telecommunications signal, and software distribution package, for example.
  • the computer program may be executed in a single electronic digital computer or it may be distributed amongst a number of computers.
  • the computer readable medium or computer readable storage medium may be a non-transitory medium. The techniques described herein may be implemented by various means.
  • these techniques may be implemented in hardware (one or more devices), firmware (one or more devices), software (one or more modules), or combinations thereof.
  • the apparatus may be implemented within one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), processors, controllers, micro-controllers, microprocessors, digitally enhanced circuits, other electronic units designed to perform the functions described herein, or a combination thereof.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs field programmable gate arrays
  • processors controllers, micro-controllers, microprocessors, digitally enhanced circuits, other electronic units designed to perform the functions described herein, or a combination thereof.
  • firmware or software the implementation may be carried out through modules of at least one chip set (e.g., procedures, functions
  • the software codes may be stored in a memory unit and executed by processors.
  • the memory unit may be implemented within the processor or externally to the processor. In the latter case it may be communicatively coupled to the processor via various means, as is known in the art.
  • the components of systems described herein may be rearranged and/or complimented by additional components in order to facilitate achieving the various aspects, etc., described with regard thereto, and they are not limited to the precise configurations set forth in the given figures, as will be appreciated by one skilled in the art.

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  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention porte sur un appareil comprenant : au moins un processeur et au moins une mémoire contenant un code de programme informatique, l'au moins une mémoire et le code de programme informatique étant configurés pour, avec l'au moins un processeur, amener l'appareil au moins à : obtenir un paramètre de modèle de réarrangement pour rendre aléatoires des ressources de canal de commande de liaison descendante physique, et signaler le paramètre de modèle de réarrangement relativement à une identité de cellule, en utilisant un canal de diffusion, ou sous forme de signalisation de dispositif utilisateur.
PCT/CN2012/075823 2012-05-21 2012-05-21 Randomisation de brouillage WO2013173961A1 (fr)

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PCT/CN2012/075823 WO2013173961A1 (fr) 2012-05-21 2012-05-21 Randomisation de brouillage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/075823 WO2013173961A1 (fr) 2012-05-21 2012-05-21 Randomisation de brouillage

Publications (1)

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WO2013173961A1 true WO2013173961A1 (fr) 2013-11-28

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WO (1) WO2013173961A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016080560A1 (fr) * 2014-11-17 2016-05-26 엘지전자 주식회사 Procédé de rétroaction pour prendre en charge la répartition aléatoire d'interférences et appareil pour cela
KR20160098751A (ko) 2015-02-11 2016-08-19 동우 화인켐 주식회사 고내구성 편광판 및 이를 구비한 표시장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003067915A1 (fr) * 2002-02-08 2003-08-14 Koninklijke Philips Electronics N.V. Systeme de radiocommunication
WO2009061048A1 (fr) * 2007-11-06 2009-05-14 Samsung Electronics Co., Ltd. Système de codage et procédé de codage de codes de contrôle d'erreur dans des trains binaires
US20090181692A1 (en) * 2008-01-14 2009-07-16 Qualcomm Incorporated Resource allocation randomization

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003067915A1 (fr) * 2002-02-08 2003-08-14 Koninklijke Philips Electronics N.V. Systeme de radiocommunication
WO2009061048A1 (fr) * 2007-11-06 2009-05-14 Samsung Electronics Co., Ltd. Système de codage et procédé de codage de codes de contrôle d'erreur dans des trains binaires
US20090181692A1 (en) * 2008-01-14 2009-07-16 Qualcomm Incorporated Resource allocation randomization

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016080560A1 (fr) * 2014-11-17 2016-05-26 엘지전자 주식회사 Procédé de rétroaction pour prendre en charge la répartition aléatoire d'interférences et appareil pour cela
KR20160098751A (ko) 2015-02-11 2016-08-19 동우 화인켐 주식회사 고내구성 편광판 및 이를 구비한 표시장치
US9772436B2 (en) 2015-02-11 2017-09-26 Dongwoo Fine-Chem Co., Ltd. Highly durable polarizing plate and display device comprising the same

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