MOBILE STATION APPARATUS, BASE STATION APPARATUS AND RADIO COMMUNICATION CHANNEL ASSIGNMENT METHOD

• US 20020160798A1
• Filed: 10/23/2001
• Published: 10/31/2002
• Est. Priority Date: 02/25/2000
• Status: Abandoned Application

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Hiramatsu, Katsuhiko, Shoji, Takahiro
• Application Number:
  US09/959,313
• Publication Number:
  US 20020160798A1
• Time in Patent Office: Days
• US Class Current: 455/522
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

In a mobile communication system according to a TDD method, a base station apparatus acquires a propagation loss value, which is multiplexed over dedicated channel data transmitted from a mobile station apparatus, of a downlink in a propagation loss value acquisition section 113; and performs channel assignment in a channel assignment section 114, substituting the propagation loss value of the downlink for that of the uplink.

Claims

1. A mobile station apparatus used in a mobile communication system according to a TDD method, comprising:

a measurer for measuring a received power value of a control channel signal transmitted from a base station apparatus at predetermined power;

a calculator for calculating a propagation loss value of a downlink, using a transmission power value and the received power value of the control channel signal; and

a transmitter for transmitting the propagation loss value to the base station apparatus.

2. The mobile station apparatus according to claim 1, wherein

said measurer measures a received power value of a known signal included in the control channel signal at outgoing calls or incoming ones.

3. A base station apparatus used in a mobile communication system according to a TDD method, comprising:

an acquirer for acquiring the propagation loss value of the downlink transmitted from said mobile station apparatus according to claim 1; and

a channel assignor for assigning a radio communication channel based on the propagation loss value.

4. A mobile station apparatus used in a mobile communication system according to a TDD method, comprising:

a measurer for measuring a received power value of a control channel signal transmitted from a base station apparatus at predetermined power; and

a transmitter for transmitting said the received power value to said base station apparatus.

5. The mobile station apparatus according to claim 4, wherein

said measurer measures a received power value of a known signal included in the control channel signal at outgoing calls or incoming ones.

6. A base station apparatus used in a mobile communication system according to a TDD method, comprising:

an acquirer for acquiring the received power value transmitted from said mobile station apparatus according to claim 4;

a calculator for calculating a propagation loss value of a downlink, using a transmission power value and the received power value of the control channel signal; and

a channel assignor for assigning a radio communication channel based on the propagation loss value.

7. A radio communication channel assignment method in a mobile communication system according to a TDD method, wherein

a mobile station apparatus calculates a propagation loss value of a downlink, and transmits the propagation loss value to a base station apparatus;

and

the base station apparatus assigns a radio communication channel based on the propagation loss value of the downlink.

8. A radio communication channel assignment method in a mobile communication system according to a TDD method, wherein

a mobile station apparatus measures a received power value of a control channel signal, and transmits the received power value to a base station apparatus;

and

the base station apparatus calculates a propagation loss value of a downlink using a transmission power value and the received power value of the control channel signal, and assigns a radio communication channel based on the propagation loss value.