Time Division Duplex
E522249
Time Division Duplex is a wireless communication method that uses a single frequency band for both uplink and downlink by separating them in time rather than frequency.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
duplexing method
ⓘ
wireless communication technique ⓘ |
| abbreviation |
FDD alternative
ⓘ
TDD ⓘ |
| advantage |
better suited for bursty and asymmetric traffic
ⓘ
flexible uplink-downlink ratio ⓘ no need for paired spectrum ⓘ |
| appliesTo |
circuit-switched wireless links
ⓘ
packet-switched networks ⓘ |
| belongsTo | radio resource management techniques ⓘ |
| canCause | cross-link interference if not coordinated ⓘ |
| contrastedWith |
Frequency Division Duplex
NERFINISHED
ⓘ
Full-duplex same-frequency simultaneous transmission ⓘ Half-duplex operation ⓘ |
| disadvantage |
requires precise timing control
ⓘ
sensitivity to interference between neighboring cells with different frame configurations ⓘ |
| doesNotSeparate | uplink and downlink in frequency ⓘ |
| enables | asymmetric uplink and downlink capacity ⓘ |
| hasComponent |
downlink subframe
ⓘ
special subframe or guard interval ⓘ uplink subframe ⓘ |
| implementedAs | time slots within a frame structure ⓘ |
| mitigates | self-interference by time separation ⓘ |
| optimizedFor |
traffic patterns with higher downlink demand
ⓘ
traffic patterns with higher uplink demand ⓘ |
| relatedConcept |
Time Division Multiple Access
NERFINISHED
ⓘ
duplexing ⓘ |
| requires |
frame configuration definition
ⓘ
guard period between uplink and downlink slots ⓘ time synchronization between transmitter and receiver ⓘ |
| requiresCoordinationWith | neighboring cells for frame alignment ⓘ |
| separates | uplink and downlink in time ⓘ |
| shares | same carrier frequency for uplink and downlink ⓘ |
| standardizedIn |
3GPP 5G NR specifications
NERFINISHED
ⓘ
3GPP LTE specifications NERFINISHED ⓘ |
| supports | dynamic time slot allocation ⓘ |
| usedFor |
backhaul links
ⓘ
fixed wireless access ⓘ mobile broadband services ⓘ |
| usedIn |
4G LTE TDD
ⓘ
5G NR TDD ⓘ WLAN systems NERFINISHED ⓘ WiMAX NERFINISHED ⓘ cellular networks ⓘ point-to-multipoint microwave systems ⓘ unpaired spectrum bands ⓘ |
| usesResource | single frequency band ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.