IPC-Stelle: H04B 3/04 [Version 2017.01]

SymbolTypTitel
HSKELECTRICITY
H04KLELECTRIC COMMUNICATION TECHNIQUE
H04BUKLTRANSMISSION [4]
H04B 1/00HGRDetails of transmission systems, not covered by a single one of groups H04B 3/00-H04B 13/00; Details of transmission systems not characterised by the medium used for transmission [1, 4, 2006.01]
H04B 1/02UGR1
.Transmitters [1, 2006.01]
H04B 1/03UGR2
. .Constructional details, e.g. casings, housings [2, 2006.01]
H04B 1/034UGR3
. . .Portable transmitters [2, 2006.01]
H04B 1/036UGR3
. . .Cooling arrangements [2, 2006.01]
H04B 1/04UGR2
. .Circuits [1, 2006.01]
H04B 1/06UGR1
.Receivers [1, 2006.01]
H04B 1/08UGR2
. .Constructional details, e.g. cabinet [1, 2006.01]
H04B 1/10UGR2
. .Means associated with receiver for limiting or suppressing noise or interference [1, 2006.01]
H04B 1/12UGR3
. . .Neutralising, balancing, or compensation arrangements [1, 2006.01]
H04B 1/14UGR3
. . .Automatic detuning arrangements [1, 2006.01]
H04B 1/16UGR2
. .Circuits [1, 2006.01]
H04B 1/18UGR3
. . .Input circuits, e.g. for coupling to an aerial or a transmission line (coupling networks between aerials or lines and receivers independent of the nature of the receiver H03H) [1, 2006.01]
H04B 1/20UGR3
. . .for coupling gramophone pick-up, recorder output, or microphone to receiver [1, 2006.01]
H04B 1/22UGR3
. . .for receivers in which no local oscillation is generated [1, 2006.01]
H04B 1/24UGR4
. . . .the receiver comprising at least one semiconductor device having three or more electrodes [1, 2006.01]
H04B 1/26UGR3
. . .for superheterodyne receivers (multiple frequency-changing H03D 7/16) [1, 2006.01]
H04B 1/28UGR4
. . . .the receiver comprising at least one semiconductor device having three or more electrodes [1, 2006.01]
H04B 1/30UGR3
. . .for homodyne or synchrodyne receivers (demodulator circuits H03D 1/22) [1, 2006.01]
H04B 1/38UGR1
.Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving [1, 2006.01, 2015.01]
H04B 1/3805UGR2
. .with built-in auxiliary receivers [2015.01]
H04B 1/3816UGR2
. .Mechanical arrangements for accommodating identification devices, e.g. cards or chips; with connectors for programming identification devices [2015.01]
H04B 1/3818UGR3
. . .Arrangements for facilitating insertion or removal of identification devices [2015.01]
H04B 1/3822UGR2
. .specially adapted for use in vehicles (H04B 1/3827 takes precedence) [2015.01]
H04B 1/3827UGR2
. .Portable transceivers [2015.01]
H04B 1/3877UGR3
. . .Arrangements for enabling portable transceivers to be used in a fixed position, e.g. cradles or boosters [2015.01]
H04B 1/3883UGR3
. . .Arrangements for mounting batteries or battery chargers [2015.01]
H04B 1/3888UGR3
. . .Arrangements for carrying or protecting transceivers [2015.01]
H04B 1/40UGR2
. .Circuits [1, 2006.01, 2015.01]
H04B 1/401UGR3
. . .for selecting or indicating operating mode [2015.01]
H04B 1/403UGR3
. . .using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency [2015.01]
H04B 1/405UGR4
. . . .with multiple discrete channels [2015.01]
H04B 1/408UGR4
. . . .the transmitter oscillator frequency being identical to the receiver local oscillator frequency [2015.01]
H04B 1/44UGR3
. . .Transmit/receive switching [1, 2, 2006.01]
H04B 1/46UGR4
. . . .by voice-frequency signals; by pilot signals [1, 2006.01]
H04B 1/48UGR4
. . . .in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter [1, 2006.01]
H04B 1/50UGR3
. . .using different frequencies for the two directions of communication [1, 2006.01]
H04B 1/52UGR4
. . . .Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa [1, 2006.01, 2015.01]
H04B 1/525UGR5
. . . . .with means for reducing leakage of transmitter signal into the receiver [2015.01]
H04B 1/54UGR3
. . .using the same frequency for two directions of communication (H04B 1/44 takes precedence) [1, 2006.01]
H04B 1/56UGR4
. . . .with provision for simultaneous communication in two directions [1, 2006.01]
H04B 1/58UGR4
. . . .Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa [1, 2006.01]
H04B 1/59UGR1
.Responders; Transponders [1, 2006.01]
H04B 1/60UGR1
.Supervising unattended repeaters [1, 2006.01]
H04B 1/62UGR1
.for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio [1, 2006.01]
H04B 1/64UGR2
. .Volume compression or expansion arrangements [1, 2006.01]
H04B 1/66UGR1
.for reducing bandwidth of signals; for improving efficiency of transmission (H04B 1/68 takes precedence) [1, 2006.01]
H04B 1/68UGR1
.for wholly or partially suppressing the carrier or one side band [1, 4, 2006.01]
H04B 1/69UGR1
.Spread spectrum techniques [6, 2006.01, 2011.01]
H04B 1/692UGR2
. .Hybrid techniques using combinations of two or more spread spectrum techniques [2011.01]
H04B 1/707UGR2
. .using direct sequence modulation [6, 2006.01, 2011.01]
H04B 1/7073UGR3
. . .Synchronisation aspects [2011.01]
H04B 1/7075UGR4
. . . .with code phase acquisition [2011.01]
H04B 1/7077UGR5
. . . . .Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation [2011.01]
H04B 1/708UGR5
. . . . .Parallel implementation [2011.01]
H04B 1/7083UGR4
. . . .Cell search, e.g. using a three-step approach [2011.01]
H04B 1/7085UGR4
. . . .using a code tracking loop, e.g. a delay-locked loop [2011.01]
H04B 1/7087UGR4
. . . .Carrier synchronisation aspects [2011.01]
H04B 1/709UGR3
. . .Correlator structure [2011.01]
H04B 1/7093UGR4
. . . .Matched filter type [2011.01]
H04B 1/7095UGR4
. . . .Sliding correlator type [2011.01]
H04B 1/7097UGR3
. . .Interference-related aspects [2011.01]
H04B 1/71UGR4
. . . .the interference being narrowband interference [2011.01]
H04B 1/7103UGR4
. . . .the interference being multiple access interference [2011.01]
H04B 1/7105UGR5
. . . . .Joint detection techniques, e.g. linear detectors [2011.01]
H04B 1/7107UGR5
. . . . .Subtractive interference cancellation [2011.01]
H04B 1/711UGR4
. . . .the interference being multi-path interference [2011.01]
H04B 1/7113UGR5
. . . . .Determination of path profile [2011.01]
H04B 1/7115UGR5
. . . . .Constructive combining of multi-path signals, i.e. RAKE receivers [2011.01]
H04B 1/7117UGR6
. . . . . .Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers [2011.01]
H04B 1/712UGR6
. . . . . .Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop [2011.01]
H04B 1/713UGR2
. .using frequency hopping [6, 2006.01, 2011.01]
H04B 1/7136UGR3
. . .Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform [2011.01]
H04B 1/7143UGR3
. . .Arrangements for generation of hop patterns [2011.01]
H04B 1/715UGR3
. . .Interference-related aspects [2011.01]
H04B 1/7156UGR3
. . .Arrangements for sequence synchronisation [2011.01]
H04B 1/7163UGR2
. .using impulse radio [2011.01]
H04B 1/717UGR3
. . .Pulse-related aspects [2011.01]
H04B 1/7176UGR3
. . .Data mapping, e.g. modulation [2011.01]
H04B 1/7183UGR3
. . .Synchronisation [2011.01]
H04B 1/719UGR3
. . .Interference-related aspects [2011.01]
H04B 1/72UGR1
.Circuits or components for simulating aerials, e.g. dummy aerials [1, 2006.01]
H04B 1/74UGR1
.for increasing reliability, e.g. using redundant or spare channels or apparatus [3, 2006.01]
H04B 1/76UGR1
.Pilot transmitters or receivers for control of transmission or for equalising [3, 2006.01]
H04B 3/00HGRLine transmission systems (combined with near-field transmission systems H04B 5/00) [1, 2006.01]
H04B 3/02UGR1
.Details [1, 2006.01]
H04B 3/03UGR2
. .Hybrid circuits (for transceivers H04B 1/52, H04B 1/58) [3, 2006.01]
H04B 3/04UGR2
. .Control of transmission; Equalising [1, 2006.01]
H04B 3/06UGR3
. . .by the transmitted signal [1, 2006.01]
H04B 3/08UGR4
. . . .in negative-feedback path of line amplifier [1, 2006.01]
H04B 3/10UGR3
. . .by pilot signal [1, 2006.01]
H04B 3/11UGR4
. . . .using pilot wire (H04B 3/12 take precedence) [3, 2006.01]
H04B 3/12UGR4
. . . .in negative-feedback path of line amplifier [1, 2006.01]
H04B 3/14UGR3
. . .characterised by the equalising network used [1, 2006.01]
H04B 3/16UGR3
. . .characterised by the negative-impedance network used [1, 2006.01]
H04B 3/18UGR4
. . . .wherein the network comprises semiconductor devices [1, 2006.01]
H04B 3/20UGR2
. .Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other [1, 2006.01]
H04B 3/21UGR3
. . .using a set of bandfilters [3, 2006.01]
H04B 3/23UGR3
. . .using a replica of transmitted signal in the time domain, e.g. echo cancellers [3, 2006.01]
H04B 3/26UGR2
. .Improving frequency characteristic by the use of loading coils [1, 2006.01]
H04B 3/28UGR2
. .Reducing interference caused by currents induced in cable sheathing or armouring [1, 2006.01]
H04B 3/30UGR2
. .Reducing interference caused by unbalance current in a normally balanced line [1, 2006.01]
H04B 3/32UGR2
. .Reducing cross-talk, e.g. by compensating [1, 2006.01]
H04B 3/34UGR3
. . .by systematic interconnection of lengths of cable during laying; by addition of balancing components to cable during laying [1, 2006.01]
H04B 3/36UGR2
. .Repeater circuits (H04B 3/58 takes precedence) [1, 2006.01]
H04B 3/38UGR3
. . .for signals in two different frequency ranges transmitted in opposite directions over the same transmission path [1, 2006.01]
H04B 3/40UGR2
. .Artificial lines; Networks simulating a line of certain length [1, 2006.01]
H04B 3/42UGR2
. .Circuits for by-passing of ringing signals [1, 2006.01]
H04B 3/44UGR2
. .Arrangements for feeding power to a repeater along the transmission line [1, 2006.01]
H04B 3/46UGR2
. .Monitoring; Testing [1, 2006.01, 2015.01]
H04B 3/462UGR3
. . .Testing group delay or phase shift, e.g. timing jitter [2015.01]
H04B 3/466UGR4
. . . .Testing attenuation in combination with at least one of group delay and phase shift [2015.01]
H04B 3/48UGR3
. . .Testing attenuation (H04B 3/466 takes precedence) [1, 2006.01, 2015.01]
H04B 3/487UGR3
. . .Testing crosstalk effects [2015.01]
H04B 3/493UGR3
. . .Testing echo effects or singing [2015.01]
H04B 3/50UGR1
.Systems for transmission between fixed stations via two-conductor transmission lines (H04B 3/54 takes precedence) [1, 2006.01]
H04B 3/52UGR1
.Systems for transmission between fixed stations via waveguides [1, 2006.01]
H04B 3/54UGR1
.Systems for transmission via power distribution lines (in alarm signalling systems G08B 25/06) [1, 2006.01]
H04B 3/56UGR2
. .Circuits for coupling, blocking, or by-passing of signals [1, 2006.01]
H04B 3/58UGR2
. .Repeater circuits [1, 2006.01]
H04B 3/60UGR1
.Systems for communication between relatively movable stations, e.g. for communication with lift (H04B 3/54 takes precedence) [1, 2006.01]
H04B 5/00HGRNear-field transmission systems, e.g. inductive loop type [1, 2006.01]
H04B 5/02UGR1
.using transceiver [1, 2006.01]
H04B 5/04UGR1
.Calling systems, e.g. paging system [1, 2006.01]
H04B 5/06UGR1
.using a portable transmitter associated with a microphone [1, 2006.01]
H04B 7/00HGRRadio transmission systems, i.e. using radiation field (H04B 10/00, H04B 15/00 take precedence) [1, 2006.01]
H04B 7/005UGR1
.Control of transmission; Equalising [3, 2006.01]
H04B 7/01UGR1
.Reducing phase shift [3, 2006.01]
H04B 7/015UGR1
.Reducing echo effects [3, 2006.01]
H04B 7/02UGR1
.Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas [1, 2006.01, 2017.01]
H04B 7/022UGR2
. .Site diversity; Macro-diversity  (using two or more spaced independent antennas H04B 7/04) [2017.01]
H04B 7/024UGR3
. . .Co-operative use of antennas at several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems [2017.01]
H04B 7/026UGR3
. . .Co-operative diversity, e.g. using fixed or mobile stations as relays [2017.01]
H04B 7/04UGR2
. .using two or more spaced independent antennas [1, 2006.01, 2017.01]
H04B 7/0404UGR3
. . .the mobile station comprising multiple antennas, e.g. to provide uplink diversity [2017.01]
H04B 7/0408UGR3
. . .using two or more beams, i.e. beam diversity [2017.01]
H04B 7/0413UGR3
. . .MIMO systems [2017.01]
H04B 7/0417UGR4
. . . .Feedback systems [2017.01]
H04B 7/0426UGR4
. . . .Power distribution [2017.01]
H04B 7/0452UGR4
. . . .Multi-user MIMO systems [2017.01]
H04B 7/0456UGR4
. . . .Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting [2017.01]
H04B 7/0491UGR3
. . .using two or more sectors, i.e. sector diversity [2017.01]
H04B 7/0495UGR4
. . . .using overlapping sectors in the same base station to implement MIMO antennas [2017.01]
H04B 7/06UGR3
. . .at the transmitting station [1, 2006.01]
H04B 7/08UGR3
. . .at the receiving station [1, 2006.01]
H04B 7/10UGR2
. .Polarisation diversity; Directional diversity [1, 2006.01]
H04B 7/12UGR2
. .Frequency diversity [1, 2006.01]
H04B 7/14UGR1
.Relay systems [1, 2, 2006.01]
H04B 7/145UGR2
. .Passive relay systems [2, 2006.01]
H04B 7/15UGR2
. .Active relay systems [2, 2006.01]
H04B 7/155UGR3
. . .Ground-based stations (H04B 7/204 takes precedence) [2, 5, 2006.01]
H04B 7/165UGR4
. . . .employing angle modulation [2, 2006.01]
H04B 7/17UGR4
. . . .employing pulse modulation, e.g. pulse code modulation [2, 2006.01]
H04B 7/185UGR3
. . .Space-based or airborne stations (H04B 7/204 takes precedence) [2, 5, 2006.01]
H04B 7/19UGR4
. . . .Earth-synchronous stations [2, 2006.01]
H04B 7/195UGR4
. . . .Non-synchronous stations [2, 2006.01]
H04B 7/204UGR3
. . .Multiple access [5, 2006.01]
H04B 7/208UGR4
. . . .Frequency-division multiple access [5, 2006.01]
H04B 7/212UGR4
. . . .Time-division multiple access [5, 2006.01]
H04B 7/216UGR4
. . . .Code-division or spread-spectrum multiple access [5, 2006.01]
H04B 7/22UGR1
.Scatter propagation systems [1, 2006.01]
H04B 7/24UGR1
.for communication between two or more posts (wireless communication networks H04W) [2, 2006.01]
H04B 7/26UGR2
. .at least one of which is mobile [2, 2006.01]
H04B 10/00HGRTransmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication [5, 2006.01, 2013.01]
H04B 10/03UGR1
.Arrangements for fault recovery [2013.01]
H04B 10/032UGR2
. .using working and protection systems [2013.01]
H04B 10/035UGR2
. .using loopbacks [2013.01]
H04B 10/038UGR2
. .using bypasses [2013.01]
H04B 10/07UGR1
.Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems [2013.01]
H04B 10/071UGR2
. .using a reflected signal, e.g. using optical time-domain reflectometers [OTDRs] [2013.01]
H04B 10/073UGR2
. .using an out-of-service signal (H04B 10/071 takes precedence) [2013.01]
H04B 10/075UGR2
. .using an in-service signal (H04B 10/071 takes precedence) [2013.01]
H04B 10/077UGR3
. . .using a supervisory or additional signal [2013.01]
H04B 10/079UGR3
. . .using measurements of the data signal [2013.01]
H04B 10/11UGR1
.Arrangements specific to free-space transmission, i.e. transmission through air or vacuum [2013.01]
H04B 10/112UGR2
. .Line-of-sight transmission over an extended range [2013.01]
H04B 10/114UGR2
. .Indoor or close-range type systems [2013.01]
H04B 10/116UGR3
. . .Visible light communication [2013.01]
H04B 10/118UGR2
. .specially adapted for satellite communication [2013.01]
H04B 10/25UGR1
.Arrangements specific to fibre transmission [2013.01]
H04B 10/2507UGR2
. .for the reduction or elimination of distortion or dispersion [2013.01]
H04B 10/2513UGR3
. . .due to chromatic dispersion [2013.01]
H04B 10/2519UGR4
. . . .using Bragg gratings [2013.01]
H04B 10/2525UGR4
. . . .using dispersion-compensating fibres [2013.01]
H04B 10/2531UGR4
. . . .using spectral inversion [2013.01]
H04B 10/2537UGR3
. . .due to scattering processes, e.g. Raman or Brillouin scattering [2013.01]
H04B 10/2543UGR3
. . .due to fibre non-linearities, e.g. Kerr effect [2013.01]
H04B 10/255UGR4
. . . .Self-phase modulation [SPM] [2013.01]
H04B 10/2557UGR4
. . . .Cross-phase modulation [XPM] [2013.01]
H04B 10/2563UGR4
. . . .Four-wave mixing [FWM] [2013.01]
H04B 10/2569UGR3
. . .due to polarisation mode dispersion [PMD] [2013.01]
H04B 10/2575UGR2
. .Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier [2013.01]
H04B 10/2581UGR2
. .Multimode transmission [2013.01]
H04B 10/2587UGR2
. .using a single light source for multiple stations [2013.01]
H04B 10/27UGR1
.Arrangements for networking [2013.01]
H04B 10/272UGR2
. .Star-type networks [2013.01]
H04B 10/275UGR2
. .Ring-type networks [2013.01]
H04B 10/278UGR2
. .Bus-type networks [2013.01]
H04B 10/29UGR1
.Repeaters [2013.01]
H04B 10/291UGR2
. .in which processing or amplification is carried out without conversion of the main signal from optical form [2013.01]
H04B 10/293UGR3
. . .Signal power control [2013.01]
H04B 10/294UGR4
. . . .in a multiwavelength system, e.g. gain equalisation [2013.01]
H04B 10/296UGR5
. . . . .Transient power control, e.g. due to channel add/drop or rapid fluctuations in the input power [2013.01]
H04B 10/297UGR3
. . .Bidirectional amplification [2013.01]
H04B 10/299UGR3
. . .Signal waveform processing, e.g. reshaping or retiming [2013.01]
H04B 10/40UGR1
.Transceivers [2013.01]
H04B 10/43UGR2
. .using a single component as both light source and receiver, e.g. using a photoemitter as a photoreceiver [2013.01]
H04B 10/50UGR1
.Transmitters [2013.01]
H04B 10/508UGR2
. .Pulse generation, e.g. generation of solitons [2013.01]
H04B 10/516UGR2
. .Details of coding or modulation [2013.01]
H04B 10/524UGR3
. . .Pulse modulation [2013.01]
H04B 10/532UGR3
. . .Polarisation modulation [2013.01]
H04B 10/54UGR3
. . .Intensity modulation [2013.01]
H04B 10/548UGR3
. . .Phase or frequency modulation [2013.01]
H04B 10/556UGR4
. . . .Digital modulation, e.g. differential phase shift keying [DPSK] or frequency shift keying [FSK] [2013.01]
H04B 10/564UGR2
. .Power control [2013.01]
H04B 10/572UGR2
. .Wavelength control [2013.01]
H04B 10/58UGR2
. .Compensation for non-linear transmitter output [2013.01]
H04B 10/588UGR3
. . .in external modulation systems [2013.01]
H04B 10/60UGR1
.Receivers [2013.01]
H04B 10/61UGR2
. .Coherent receivers [2013.01]
H04B 10/63UGR3
. . .Homodyne [2013.01]
H04B 10/64UGR3
. . .Heterodyne [2013.01]
H04B 10/66UGR2
. .Non-coherent receivers, e.g. using direct detection [2013.01]
H04B 10/67UGR3
. . .Optical arrangements in the receiver [2013.01]
H04B 10/69UGR3
. . .Electrical arrangements in the receiver [2013.01]
H04B 10/70UGR1
.Photonic quantum communication [2013.01]
H04B 10/80UGR1
.Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B 10/03-H04B 10/70, e.g. optical power feeding or optical transmission through water [2013.01]
H04B 10/85UGR2
. .Protection from unauthorised access, e.g. eavesdrop protection [2013.01]
H04B 10/90UGR1
.Non-optical transmission systems, e.g. transmission systems employing non-photonic corpuscular radiation [2013.01]
H04B 11/00HGRTransmission systems employing ultrasonic, sonic or infrasonic waves [1, 2006.01]
H04B 13/00HGRTransmission systems characterised by the medium used for transmission, not provided for in groups H04B 3/00-H04B 11/00 [1, 2006.01]
H04B 13/02UGR1
.Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy [1, 2006.01]
H04B 14/00HGRTransmission systems not characterised by the medium used for transmission (details thereof H04B 1/00) [4, 2006.01]
H04B 14/02UGR1
.characterised by the use of pulse modulation (in radio transmission relays H04B 7/17) [4, 2006.01]
H04B 14/04UGR2
. .using pulse code modulation [4, 2006.01]
H04B 14/06UGR2
. .using differential modulation, e.g. delta modulation [4, 2006.01]
H04B 14/08UGR1
.characterised by the use of a sub-carrier [4, 2006.01]
H04B 15/00HGRSuppression or limitation of noise or interference (by means associated with receiver H04B 1/10) [1, 2006.01]
H04B 15/02UGR1
.Reducing interference from electric apparatus by means located at or near the interfering apparatus [1, 2006.01]
H04B 15/04UGR2
. .the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder [1, 2006.01]
H04B 15/06UGR3
. . .by local oscillators of receivers [1, 2006.01]
H04B 17/00HGRMonitoring; Testing (of line transmission systems H04B 3/46; arrangements for monitoring or testing transmission systems employing electromagnetic waves other than radio waves H04B 10/07) [2, 2006.01, 2015.01]
H04B 17/10UGR1
.of transmitters [2015.01]
H04B 17/11UGR2
. .for calibration [2015.01]
H04B 17/12UGR3
. . .of transmit antennas, e.g. of amplitude or phase [2015.01]
H04B 17/13UGR3
. . .of power amplifiers, e.g. of gain or non-linearity [2015.01]
H04B 17/14UGR3
. . .of the whole transmission and reception path, e.g. self-test loop-back [2015.01]
H04B 17/15UGR2
. .Performance testing [2015.01]
H04B 17/16UGR3
. . .Test equipment located at the transmitter [2015.01]
H04B 17/17UGR3
. . .Detection of non-compliance or faulty performance, e.g. response deviations (H04B 17/18 takes precedence) [2015.01]
H04B 17/18UGR3
. . .Monitoring during normal operation [2015.01]
H04B 17/19UGR3
. . .Self-testing arrangements [2015.01]
H04B 17/20UGR1
.of receivers [2015.01]
H04B 17/21UGR2
. .for calibration; for correcting measurements [2015.01]
H04B 17/23UGR2
. .Indication means, e.g. displays, alarms or audible means [2015.01]
H04B 17/24UGR2
. .with feedback of measurements to the transmitter [2015.01]
H04B 17/26UGR2
. .using historical data, averaging values or statistics [2015.01]
H04B 17/27UGR2
. .for locating or positioning the transmitter [2015.01]
H04B 17/29UGR2
. .Performance testing [2015.01]
H04B 17/30UGR1
.of propagation channels [2015.01]
H04B 17/309UGR2
. .Measuring or estimating channel quality parameters [2015.01]
H04B 17/318UGR3
. . .Received signal strength [2015.01]
H04B 17/327UGR4
. . . .Received signal code power [RSCP] [2015.01]
H04B 17/336UGR3
. . .Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] [2015.01]
H04B 17/345UGR3
. . .Interference values (H04B 17/336 takes precedence) [2015.01]
H04B 17/354UGR3
. . .Adjacent channel leakage power [2015.01]
H04B 17/364UGR3
. . .Delay profiles [2015.01]
H04B 17/373UGR2
. .Predicting channel quality parameters [2015.01]
H04B 17/382UGR2
. .for resource allocation, admission control or handover [2015.01]
H04B 17/391UGR2
. .Modelling the propagation channel [2015.01]
H04B 17/40UGR1
.of relay systems [2015.01]