Diversity transmission and reception method and equipment

Claim 2

In an antenna-selection diversity transmission and reception equipment (10) which is in digital communication with a transmission and reception equipment (16) having a single antenna (17), and performs transmission and reception with time division by using the same radio frequencies, said antenna-selection diversity transmission and reception equipment (10) comprising: a plurality of antennae (11, 12); a receiving part (15) having receiving means (61, 62), comparing means (63) and selecting means (64, 65) which are adapted for a receiving-antenna selection diversity; and a transmitting part (14) having memory means (52) for storing antenna information that was selected by said receiving part (15); an antenna for transmission being selected from said plurality of antennae (11, 12) at the time of transmission in accordance with said information of said memory means (52).

Claim 3

An antenna-selection diversity transmission and reception equipment as set forth in claim 1, wherein a digital signal to be transmitted is constituted by at least a preamble signal (18) and an information signal (19), and the antenna selection of reception diversity is performed by said selecting means (64, 65) that is driven when said preamble signal (18) is received.

Claim 4

An antenna-selection diversity transmission and reception equipment as set forth in claim 1, wherein a digital signal to be transmitted is constituted by at least a preamble signal (18), an information signal (19) and a postamble signal (20), and wherein antenna information that was selected at the time at least said postamble signal (20) is received is stored in said memory means (52).

Claim 5

An antenna-selection diversity transmission and reception equipment as set forth in claim 1, wherein said antenna-selection diversity transmission and reception equipment (10) is provided in a base station, and said transmission and reception equipment (16) having a single antenna (17) is provided in a mobile station.

Claim 6

A diversity transmission and reception equipment (96) which performs digital communications with a transmission and reception equipment (90) having a plurality of antennae (91, 92) and transmitting a frame signal including at least a first signal interval (81) which is transmitted from one antenna selected from said plurality of antennae (91, 92) and a second signal interval (82) which is transmitted with time division from said plurality of antennae (91, 92) in a predetermined sequence, comprising: a single antenna (99) for receiving said frame signal; a receiving part (98) for receiving each of signals of said second signal interval (82) transmitted from said plurality of antennae (91, 92) and received to said single antenna (99), the receiving part (98) having level comparing means (181) for detecting a signal of highest level from said received signals of said second signal interval (82) and transmitting said signal of highest level as a selection control signal (83); and a transmitting part (97) having a selection-control-­signal transmitting part (171) to which said selection control signal (83) is inputted, the selection control signal (83) being transmitted through said single antenna (99) to said transmission and reception equipment (90) having a plurality of antennae (91, 92).

Claim 7

A diversity transmission and reception equipment (96) which performs digital communications with a transmission and reception equipment (90) having a plurality of antennae (91, 92) and transmitting a frame signal including at least a first signal interval (81) which is transmitted from one antenna selected from said plurality of antennae (91, 92) and a second signal interval (82) which is transmitted with time division from said plurality of antennae (91, 92) in a predetermined sequence, comprising: a single antenna (99) for receiving said frame signal; a receiving part (98) for receiving each of signals of said second signal interval (82) transmitted from said plurality of antennae (91, 92) and received to said single antenna (99), the receiving part (98) having level comparing means (181) for detecting a signal of highest level from said received signals of said second signal interval (82) and transmitting said signal of highest level as a selection control signal (83); and a transmitting part (97) having a selection-control-­signal transmitting part (171) to which said selection control signal (83) is inputted, the selection control signal (83) being transmitted through said single antenna (99) to said transmission and reception equipment (90) having a plurality of antennae (91, 92).

Claim 8

A diversity transmission and reception equipment as set forth in claim 5, wherein said diversity transmission and reception equipment (96) is provided in a mobile station, and said transmission and reception equipment (90) having a plurality of antennae (91, 92) is provided in a base station.

Claim 9

In a diversity transmission and reception method wherein digital communications are performed between one transmission and reception equipment (90) having a plurality of antennae (91, 92) and another transmission and reception equipment (96) having a single antenna (99), the improvement wherein said diversity transmission and reception method comprises: transmitting a frame signal from said one transmission and reception equipment (90), the frame signal including at least a first signal interval (81) which is transmitted from one antenna selected from said plurality of antennae (91, 92) and a second signal interval (82) which is transmitted with time division from said plurality of antennae (91, 92) in a predetermined sequence; discriminating signals of said second signal interval (82) of said frame signal transmitted from said one transmission and reception equipment (90), by said another transmission and reception equipment (96), and transmitting an optically received signal information as a selection control signal (83) from said another transmission and reception equipment (96); selecting an antenna for reception from said plurality of antennae (91, 92) of said one transmission and reception equipment (90) by diversity antenna selection, and selecting an antenna for transmission from said plurality of antennae (91, 92) of said one transmission and reception equipment (90) by reception of said selection control signal (83) transmitted from said another transmission and reception equipment (96).

Claim 10

In a diversity transmission and reception method wherein digital communications are performed between one transmission and reception equipment (90) having a plurality of antennae (91, 92) and another transmission and reception equipment (96) having a single antenna (99), the improvement wherein said diversity transmission and reception method comprises: transmitting a frame signal from said one transmission and reception equipment (90), the frame signal including at least a first signal interval (81) which is transmitted from one antenna selected from said plurality of antennae (91, 92) and a second signal interval (82) which is transmitted with time division from said plurality of antennae (91, 92) in a predetermined sequence; discriminating signals of said second signal interval (82) of said frame signal transmitted from said one transmission and reception equipment (90), by said another transmission and reception equipment (96), and transmitting an optically received signal information as a selection control signal (83) from said another transmission and reception equipment (96); selecting an antenna for reception from said plurality of antennae (91, 92) of said one transmission and reception equipment (90) by diversity antenna selection, and selecting an antenna for transmission from said plurality of antennae (91, 92) of said one transmission and reception equipment (90) by reception of said selection control signal (83) transmitted from said another transmission and reception equipment (96).

Claim 11

A diversity transmission and reception method as set forth in claim 7, wherein said second signal interval (82) of said frame signal is provided after said first signal interval (81).

Claim 12

A diversity transmission and reception method as set forth in claim 7, wherein said one transmission and reception equipment (90) having a plurality of antennae (91, 92) is provided in a base station, and said another transmission and reception equipment (96) having a single antenna (99) is provided in a mobile station.