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US 10,098,112 B2Granted
Identification of downlink messages using repeated transmission
AssigneeSony Corporation
InventorsMatthew William Webb, Hideji Wakabayashi
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AssigneeSony Corporation
InventorsMatthew William Webb, Hideji Wakabayashi
Estimating the term…
A wireless telecommunication system comprises a base station arranged to communicate messages to one or more terminal devices over a radio interface. The radio interface has a radio frame structure comprising a plurality of subframes, wherein a message may be transmitted in accordance with a first transmission scheme using transmission resources in a first number of radio subframes (e.g. one subframe) or transmitted in accordance with a second transmission scheme using transmission resources in a second number of radio subframes (e.g. with repeat transmissions in a plurality of subframes). The message is transmitted in association with an identifier to indicate a terminal device to which the message is addressed. A characteristic for the identifier, for example a value or control region search space for the identifier, is dependent on whether the message is to be transmitted in accordance with the first transmission scheme or the second transmission scheme. A terminal device to which the message is addressed determines the transmission scheme from the characteristic of the identifier and receives the message accordingly.
A base station, comprising:
A terminal device, comprising:
A method of operating a terminal device, the method comprising:
A terminal device, comprising:
A method of operating a terminal device, the method comprising:
Dependencies are inferred from the claim text.
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Based on the type of the allocated resource: resources in time domain, e.g. slots or frames
Arrangements for detecting or preventing errors in the information received: by repeating transmission, e.g. Verdan system
Arrangements for allocating sub-channels of the transmission path: allocation of signalling, i.e. of overhead other than pilot signals
Allocation of signalling, i.e. of overhead other than pilot signals: physical resource allocation for ACK/NACK
About 8 years 5 months of term left · ends 13 Mar 2035 (estimated)
The present application claims priority to European Patent Application No. 14 153 280.4, filed in the European Patent Office on Jan. 30, 2014, the entire contents of which are hereby incorporated by reference herein in entirety.
Field
The present disclosure relates to telecommunications apparatus and methods. In particular, certain embodiments relate to schemes for communicating allocations of transmission resources of a shared channel in a wireless telecommunications system.
A more complete appreciation of the disclosure and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings wherein like reference numerals designate identical or corresponding parts throughout the several views, and wherein:
FIG. 1 provides a schematic diagram illustrating an example of a mobile telecommunication system;
FIG. 2 provides a schematic diagram illustrating a LTE radio frame;
FIG. 1 provides a schematic diagram illustrating some basic functionality of a mobile telecommunications network/system 100 operating in accordance with LTE principles and which may be adapted to implement embodiments of the disclosure as described further below. Various elements of FIG. 1 and their respective modes of operation are well-known and defined in the relevant standards administered by the 3GPP (RTM) body and also described in many books on the subject, for example, Holma H. and Toskala A [2]. It will be appreciated that operational aspects of the telecommunications network which are not specifically described below may be implemented in accordance with any known techniques, for example according to the relevant standards.
The network 100 includes a plurality of base stations 101 connected to a core network 102. Each base station provides a coverage area 103 (i.e. a cell) within which data can be communicated to and from terminal devices 104. Data is transmitted from base stations 101 to terminal devices 104 within their respective coverage areas 103 via a radio downlink. Data is transmitted from terminal devices 104 to the base stations 101 via a radio uplink. The core network 102 routes data to and from the terminal devices 104 via the respective base stations 101 and provides functions such as authentication, mobility management, charging and so on. Terminal devices may also be referred to as mobile stations, user equipment (UE), user terminal, mobile radio, and so forth. Base stations may also be referred to as transceiver stations/nodeBs/e-nodeBs, and so forth.
Mobile telecommunications systems such as those arranged in accordance with the 3GPP defined Long Term Evolution (LTE) architecture use an orthogonal frequency division modulation (OFDM) based interface for the radio downlink (so-called OFDMA) and a single carrier frequency division multiple access scheme (SC-FDMA) on the radio uplink. FIG. 2 shows a schematic diagram illustrating an OFDM based LTE downlink radio frame 201. The LTE downlink radio frame is transmitted from a LTE base station (known as an enhanced Node B) and lasts 10 ms. The downlink radio frame comprises ten subframes, each subframe lasting 1 ms. A primary synchronisation signal (PSS) and a secondary synchronisation signal (SSS) are transmitted in the first and sixth subframes of the LTE frame. A physical broadcast channel (PBCH) is transmitted in the first subframe of the LTE frame.