Radio apparatus, and method and program for controlling spatial path
View Patent ↗A PDMA terminal ( 1000 ) establishes communication by forming a plurality of spatial paths to another single radio apparatus. A plurality of antennas constituting an array antenna are divided into a plurality of subarrays corresponding to the plurality of spatial paths respectively. An adaptive array processing unit (USP) can perform an adaptive array processing for each of the plurality of subarrays. A memory (MMU) stores in advance information on the number of antennas associated with the number of spatial paths that can be formed by the array antenna. A control unit (CNP) controls a processing to transmit possible multiplicity information to another radio apparatus at a prescribed timing.
1. A radio apparatus capable of communicating with another radio apparatus, comprising:
a communication unit configured to communicate using an antenna; and
a reception unit configured to receive, from said another radio apparatus, a value indicating possible multiplicity associated with the number of spatial paths that can be formed by said another radio apparatus, at a predetermined timing.
2. The radio apparatus according to claim 1 , wherein said reception unit receive the value indicating possible multiplicity from said another radio apparatus in such a manner that the predetermined timing comes before a communication.
3. A radio apparatus according to claim 1 , wherein said reception unit receives the number of spatial paths that the said another radio apparatus is capable of receiving, as the value indicating possible multiplicity.
4. A radio apparatus capable of communicating with another radio apparatus, comprising:
a communication unit configured to communicate using a plurality of antennas;
a storage unit configured to store beforehand a value indicating possible multiplicity associated with the number of spatial paths formable by said communication unit; and
a control unit configured to control a processing of transmitting the value indicating possible multiplicity to said another radio apparatus, at a predetermined timing.
5. A radio apparatus according to claim 4 , wherein said control unit controls the processing of transmitting the value indicating possible multiplicity to said another apparatus in such a manner that the predetermined timing comes before a communication.
6. A radio apparatus according to claim 4 , wherein said storage unit stores beforehand the number of spatial paths that the said radio apparatus is capable of receiving, as the value indicating possible multiplicity.
7. A radio apparatus capable of communicating with another radio apparatus, comprising:
a communication unit configured to communicate using a plurality of antennas; and
a reception unit configured to receive, from said another radio apparatus, a value indicating possible multiplicity associated with the number of spatial paths that can be formed by said another radio apparatus, at a predetermined timing.
8. A radio apparatus according to claim 7 , wherein said reception unit receives the value indicating possible multiplicity from said another radio apparatus in such a manner that the predetermined timing comes before a communication.
9. A radio apparatus according to claim 7 , wherein said reception unit receives the number of spatial paths that the said another radio apparatus is capable of receiving, as the value indicating possible multiplicity.