Frame structure having non-symmetrical slot assignments for mobile communications

A frame structure for use in a full duplex frequency channel of a wireless communications system having at least one central station and a plurality of peripheral stations in which stations communicate data using a slotted protocol having a predetermined number of slots in a frame, comprising:

• an uplink time slot in a first frame in which one of the plurality of peripheral stations transmits to the at least one central station;
• a downlink time slot in the first frame in which said at least one central station transmits back a signal pre-compensated for channel distortions to said one of the plurality of peripheral stations;
• and
• an uplink time slot in a second frame substantially adjacent and later in time to said first frame in which said one of the plurality of peripheral stations transmits back to the at least one central station,
• wherein the number of slots (Sud) between the uplink time slot in the first frame and the downlink time slot in the first frame is less than the number of slots (Sdu) between the downlink time slot in the first frame and the uplink time slot in the second frame.

A frame structure for use in a full duplex frequency channel of a wireless communication system having at least one central station and a plurality of peripheral stations in which stations communicate data using a slotted protocol having a predetermined number of slots in a frame, comprising:

• an uplink time slot in a first frame in which one of the plurality of peripheral stations transmits to the at least one central station;
• a downlink time slot in the first frame in which said at least one central station transmits back a signal pre-compensated for signal distortions to said one of the plurality of peripheral stations;
• and
• an uplink time slot in a second frame substantially adjacent and later in time to said first frame in which said one of the plurality of peripheral stations transmits back to the at least one central station,
• wherein the time (Tud) from the start of said uplink time slot in the first frame and the start of said downlink time slot in the first frame is less than the time (Tdu) from the start of said downlink time slot in the first frame and the start of said uplink time slot in the second frame.

A frame structure for use in a full duplex frequency channel of a mobile terrestrial communication system having at least one stationary base station and a plurality of mobile unit stations in which stations communicate data using a slotted protocol having a predetermined number of slots in a frame;

• comprising:
• an uplink time slot in which one of the plurality of peripheral stations transmits to the at least one central station;
• a downlink time slot in which said at least one central station transmits back a signal precompensated for signal distortions to said one of the plurality of peripheral stations;
• and
• wherein the ratio of time (Tud) from the start of said uplink time slot in a first frame and the start of said downlink time slot in the first frame to the time (Tdu) from the start of said downlink time slot in the first frame and the start of said uplink time slot in a second frame is at least 3 where the second frame is substantially adjacent and later in time to said first frame, the slotted protocol is one of a time division multiple access protocol and a time division duplexing protocol, and each of said mobile unit stations use a single frequency synthesizer to up convert for transmission and down convert for reception.