Communication device
A non-AP/PCP communication apparatus comprises: a receiver which receives a measurement request which is transmitted from an AP/PCP communication apparatus and which requests measurement used in SPSH executability determination; and a transmitter which transmits to the AP/PCP communication apparatus the result of carrying out the measurement on the basis of the measurement request. Using a first period, which is a period in which communication is to be carried out with a first non-AP/PCP communication apparatus, the transmitter and the receiver carry out communication with the first device using a first protocol, and in a second period which is included in the measurement request and in which communication is not carried out with the first device, the receiver carries out measurement of a received signal using the first protocol. The result includes information relating to the measurement of the received signal and information relating to the first protocol.
1. A terminal apparatus comprising:
reception circuitry, which, in operation, receives a Channel Quality measurement request from an AP/PCP communication apparatus; and
transmission circuitry, which, in response to the Channel Quality measurement request, performs Channel Quality measurement during an existing Service Period (existing SP), different from a candidate Service Period (candidate SP) allocated to the terminal apparatus and a destination terminal, and transmits a Channel Quality report that includes a result of the Channel Quality measurement,
wherein in response to the AP/PCP communication apparatus scheduling the candidate SP that overlaps in time with the existing SP after receiving the Channel Quality report, the reception circuitry receives a scheduling element including a Recommended Transmission Scheme subfield that indicates a recommended transmission scheme to be applied in the candidate SP.
2. The terminal apparatus according to claim 1 , wherein
the Channel Quality measurement request is transmitted from the AP/PCP communication apparatus to assess a possibility of spatial sharing between the existing SP and the candidate SP.
3. The terminal apparatus according to claim 1 , wherein
a SISO reception antenna configuration or a single-user MIMO (SU-MIMO) reception antenna configuration is used in the Channel Quality measurement during the existing SP.
4. The terminal apparatus according to claim 1 , wherein
the Channel Quality measurement request includes an RX Antenna Configuration Type subfield that indicates whether a SISO reception antenna configuration is requested to be used in the Channel Quality measurement or whether a single-user MIMO (SU-MIMO) reception antenna configuration is requested to be used in the Channel Quality measurement.
5. The terminal apparatus according to claim 3 , wherein
the Channel Quality report includes an RX Antenna Configuration Type subfield that indicates whether a reception antenna configuration used in the Channel Quality measurement is a SISO reception antenna configuration or a single-user MIMO (SU-MIMO) reception antenna configuration.
6. The terminal apparatus according to claim 1 , wherein
the recommended transmission scheme indicated by the Recommended Transmission Scheme subfield is SISO transmission or single-user MIMO (SU-MIMO) transmission.
7. The terminal apparatus according to claim 1 , wherein
the Channel Quality measurement is performed in a first Beacon Interval in which the existing SP and the candidate SP are scheduled at different time periods; and
spatial sharing is performed in a second Beacon Interval in which the candidate SP is scheduled to overlap in time with the existing SP.
8. The terminal apparatus according to claim 1 , wherein
the Channel Quality measurement request includes subfields for indicating channel information, a measurement result report method, a measurement start time, a measurement duration, and a number of time blocks.
9. A communication method for a terminal apparatus, the communication method comprising:
receiving a Channel Quality measurement request from an AP/PCP communication apparatus;
in response to the Channel Quality measurement request, performing Channel Quality measurement during an existing Service Period (existing SP), different from a candidate Service Period (candidate SP) allocated to the terminal apparatus and a destination terminal;
transmitting a Channel Quality report that includes a result of the Channel Quality measurement; and
in response to the AP/PCP communication apparatus scheduling the candidate SP that overlaps in time with the existing SP after receiving the Channel Quality report, receiving a scheduling element including a Recommended Transmission Scheme subfield that indicates a recommended transmission scheme to be applied in the candidate SP.
10. The communication method according to claim 9 , wherein
the Channel Quality measurement request is transmitted from the AP/PCP communication apparatus to assess a possibility of spatial sharing between the existing SP and the candidate SP.
11. The communication method according to claim 9 , wherein
a SISO reception antenna configuration or a single-user MIMO (SU-MIMO) reception antenna configuration is used in the Channel Quality measurement during the existing SP.
12. The communication method according to claim 9 , wherein
the Channel Quality measurement request includes an RX Antenna Configuration Type subfield that indicates whether a SISO reception antenna configuration is requested to be used in the Channel Quality measurement or whether a single-user MIMO (SU-MIMO) reception antenna configuration is requested to be used in the Channel Quality measurement.
13. The communication method according to claim 9 , wherein
the Channel Quality report includes an RX Antenna Configuration Type subfield that indicates whether a reception antenna configuration used in the Channel Quality measurement is a SISO reception antenna configuration or a single-user MIMO (SU-MIMO) reception antenna configuration.
14. The communication method according to claim 9 , wherein
the recommended transmission scheme indicated by the Recommended Transmission Scheme subfield is SISO transmission or single-user MIMO (SU-MIMO) transmission.
15. The communication method according to claim 9 , wherein
the Channel Quality measurement is performed in a first Beacon Interval in which the existing SP and the candidate SP are scheduled at different time periods; and
spatial sharing is performed in a second Beacon Interval in which the candidate SP is scheduled to overlap in time with the existing SP.
16. The communication method according to claim 9 , wherein
the Channel Quality measurement request includes subfields for indicating channel information, a measurement result report method, a measurement start time, a measurement duration, and a number of time blocks.