Arrangements affording multiple use of the transmission path

HELECTRICITY H04Electric communication H04LTRANSMISSION OF DIGITAL INFORMATION

H04L5/00Arrangements affording multiple use of the transmission path

H04L5/0001Arrangements for dividing the transmission path H04L5/0003Two-dimensional division H04L5/0005Time-frequency H04L5/0007the frequencies being orthogonal H04L5/0008Wavelet-division H04L5/001the frequencies being arranged in component carriers H04L5/0012Hopping in multicarrier systems H04L5/0014Three-dimensional division H04L5/0016Time-frequency-code H04L5/0017in which a distinct code is applied, as a temporal sequence, to each frequency H04L5/0019in which one code is applied, as a temporal sequence, to all frequencies H04L5/0021in which codes are applied as a frequency-domain sequences H04L5/0023Time-frequency-space H04L5/0025Spatial division following the spatial signature of the channel H04L5/0026Division using four or more dimensions H04L5/0028Variable division H04L5/003Arrangements for allocating sub-channels of the transmission path H04L5/0032Distributed allocation H04L5/0033each allocating device acting autonomously H04L5/0035Resource allocation in a cooperative multipoint environment H04L5/0037Inter-user or inter-terminal allocation H04L5/0039Frequency-contiguous H04L5/0041Frequency-non-contiguous H04L5/0042intra-user or intra-terminal allocation H04L5/0044allocation of payload H04L5/0046Determination of how many bits are transmitted on different sub-channels H04L5/0048Allocation of pilot signals H04L5/005of common pilots H04L5/0051of dedicated pilots H04L5/0053Allocation of signaling H04L5/0055Physical resource allocation for ACK/NACK H04L5/0057Physical resource allocation for CQI H04L5/0058Allocation criteria H04L5/006Quality of the received signal H04L5/0062Avoidance of ingress interference H04L5/0064Rate requirement of the data H04L5/0066Requirements on out-of-channel emissions H04L5/0067Allocation algorithms which involve graph matching H04L5/0069Allocation based on distance or geographical location H04L5/0071Allocation based on fairness other than the proportional kind H04L5/0073Allocation arrangements that take into account other cell interferences H04L5/0075Allocation using proportional fairness H04L5/0076Allocation utility-based H04L5/0078Timing of allocation H04L5/008once only, on installation H04L5/0082at predetermined intervals H04L5/0083symbol-by-symbol H04L5/0085when channel conditions change H04L5/0087when data requirements change H04L5/0089due to addition or removal of users or terminals H04L5/0091Signaling for the administration of the divided path H04L5/0092Indication of how the channel is divided H04L5/0094Indication of how sub-channels of the path are allocated H04L5/0096Indication of changes in allocation H04L5/0098Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands H04L5/02Channels characterised by the type of signal H04L5/023Multiplexing of multicarrier modulation signals H04L5/026using code division H04L5/04the signals being represented by different amplitude or polarities H04L5/06the signals being represented by different frequencies H04L5/08each combination of signals in different channels being represented by a fixed frequency H04L5/10with dynamo-electric generation of carriers with mechanical filters or demodulators H04L5/12the signals being represented by different phase modulations of a single carrier H04L5/14Two-way operation using the same type of signal H04L5/1407Artificial lines or their setting H04L5/1415using control lines H04L5/1423for simultaneous baseband signals H04L5/143for modulated signals H04L5/1438Negotiation of transmission parameters prior to communication H04L5/1446of transmission speed H04L5/1453of modulation type H04L5/1461Suppression of signals in the return path H04L5/1469using time-sharing H04L5/1476operating bitwise H04L5/1484operating bytewise H04L5/1492with time compression H04L5/16Half-duplex systems Simplex-duplex switching Transmission of break signals non automatically inverting the direction of transmission H04L5/18Automatic changing of the traffic direction H04L5/20using different combinations of lines H04L5/22using time-division multiplexing H04L5/225combined with the use of transition coding H04L5/24with start-stop synchronous converters H04L5/245with a number of discharge tubes or semiconductor elements which successively connect the different channels to the transmission channels H04L5/26combined with the use of different frequencies