H04B7/2121 - CPC Classification Index

ClassID:

223744 ⎘

H04B7/2121 - CPC Classification

Classification description:

Radio transmission systems, i.e. using radiation field; Relay systems; Active relay systems; Multiple access; Time-division multiple access [TDMA] Channels assignment to the different stations

Sub-classes:

H04B7/2123 » {Variable assignment, e.g. demand assignment} 27

Recent Application in this class:

20240097688

2024-03-21

Precision Microwave Frequency Synthesizer And Receiver With Delay Balanced Drift Canceling Loop

20220360324

2022-11-10

Collision-free transmission of sensor data of multiple sensors to a satellite

20210091775

2021-03-25

Precision microwave frequency synthesizer and receiver with delay balanced drift canceling loop

20180097724

2018-04-05

Tree structured spreading codes

20170339454

2017-11-23

Device and method for sharing downlink demodulation reference signals

20160066319

2016-03-03

Wireless communication apparatus, wireless communication system, and slot assignment method

20150245341

2015-08-27

Channel allocation in a communication system

20150162977

2015-06-11

METHOD AND APPARATUS FOR CONTROLLING SATELLITE COMMUNICATION NETWORK, AND METHOD OF COMMUNICATION BY VSAT CENTRAL STATION

20090264120

2009-10-22

Systems and methods for packing/unpacking satellite service links to/from satellite feeder links

#10

20070274249

2007-11-29

Method of Communication in a Time Division Duplex (Tdd) Satellite Communication System

#11

20070019605

2007-01-25

Satellite modem with a dynamic bandwidth

#12

20060148483

2006-07-06

Channel allocation method and apparatus

#13

20050221757

2005-10-06

Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems