Relay-Assisted Channel Condition Measurements For Connection Setup and Maintenance

• US 20080049678A1
• Filed: 08/08/2007
• Published: 02/28/2008
• Est. Priority Date: 08/24/2006
• Status: Abandoned Application

• Current Assignee: Nokia Siemens Networks GmbH & Company KG (Nokia Corporation)
• Original Assignee: Siemens Corporate Research Incorporated (Siemens AG)
• Inventors: Merchenko, Vladimir, Bae, Junjik, Chindapol, Aik
• Application Number:
  US11/835,470
• Publication Number:
  US 20080049678A1
• Time in Patent Office: Days
• US Class Current: 370/331
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels
• CPC Class Codes: H04L 25/0226 sounding signals per se
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0032 Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0057 Physical resource allocation for CQI
• CPC Class Codes: H04W 16/26 Cell enhancers or enhancement, e.g. for tunnels, building shadow
• CPC Class Codes: H04W 36/0083 Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists

Abstract

A method is provided wherein communication channel conditions are communicated between a relay station and a mobile station to a base station, comprising: transmitting from the mobile station to the relay station information indicating the communication channel conditions between the relay station and the mobile station, such information including pilots with the uplink data message from the relay station to the base station, dedicated ranging codes from the relay station to the base station or contention-based initial ranging codes from the relay station to the base station; instructing, when either the dedicated ranging codes or contention-based initial ranging codes, the relay station by the base station of the dedicated ranging or contention-based initial ranging method used and having a relay station monitored the ranging method; processing the information received by the relay station in the relay station into a channel condition report; and transmitting from the relay station to the base station the channel condition report. A method is also for provided communication channel conditions between a relay station and a mobile station to a base station by communicating such channel conditions between the relay station and the mobile station to the base station using a down link (DL) preamble-based channel measurement wherein the relay station sends the preamble and each of the mobile station reports the measurement to base station.

Claims

1. A method for providing communication channel conditions between a relay station and a mobile station, comprising:

reporting such channel conditions using a down link (DL) preamble-based channel measurement wherein the relay station sends a preamble and the mobile station reports the measurement of the relay station to the base station.

2. A method for providing communication channel conditions between a relay station and a mobile station, comprising:

transmitting from the mobile station information indicating the communication channel conditions between the relay station and the mobile station, such information including either;

pilots with an uplink data message from the mobile station;

dedicated ranging codes from the mobile station;

or contention-based initial ranging codes from the mobile station;

instructing, when the dedicated ranging codes are used, the relay station by the base station of dedicated ranging information such as a selected code or location in an uplink transmission subframe;

having a relay station monitor the uplink transmission;

processing the information received by the relay station in the relay station into a channel condition report; and

transmitting from the relay station to the base station the channel condition report.

3. A method for providing communication channel conditions between a relay station and a mobile station to a base station, comprising:

transmitting from the mobile station information indicating the communication channel conditions between the relay station and the mobile station, such information including pilots with the uplink data message from the mobile station, dedicated ranging codes from the mobile station to the base station or contention-based initial ranging codes from the mobile station;

instructing, when either the dedicated ranging codes or contention-based initial ranging codes, the relay station by the base station of the dedicated ranging or contention-based initial ranging method used and having a relay station monitored the ranging method;

processing the information received by the relay station in the relay station into a channel condition report;

transmitting from the relay station to the base station the channel condition report.

4. A method for providing communication channel conditions between a relay station and a mobile station, comprising:

transmitting from the mobile station information indicating the communication channel conditions between the relay station and the mobile station, such information including pilots with an uplink data message from the mobile station;

indicating to a relay station the location and format of an uplink transmission;

having a relay station monitor the uplink transmission;

processing the information received by the relay station in the relay station into a channel condition report; and

transmitting from the relay station to the base station the channel condition report.

5. A method for providing communication channel conditions between a relay station and a mobile station, comprising:

transmitting from the mobile station information indicating the communication channel conditions between the relay station and the mobile station, such information including dedicated ranging codes from the mobile station;

instructing the relay station by the base station of the dedicated ranging codes used and location in an uplink transmission subframe;

having a relay station monitor the uplink transmission;

processing the information received by the relay station in the relay station into a channel condition report; and

transmitting from the relay station to the base station the channel condition report.

6. A method for providing communication channel conditions between a relay station and a mobile station, comprising:

transmitting from the mobile station information indicating the communication channel conditions between the relay station and the mobile station, such information including contention-based initial ranging codes from the mobile station;

instructing the relay station by the base station of the contention-based initial ranging method used and having a relay station monitored the ranging method;

having a relay station monitor the uplink transmission;

processing the information received by the relay station in the relay station into a channel condition report; and

transmitting from the relay station to the base station the channel condition report.

7. A method for providing communication channel conditions between a relay station and a mobile station to a base station, comprising:

transmitting from the mobile station information indicating the communication channel conditions between the relay station and the mobile station, such information including pilots with the uplink data message from the mobile station;

processing the information received by the relay station in the relay station into a channel condition report;

transmitting from the relay station to the base station the channel condition report.

8. A method for providing communication channel conditions between a relay station and a mobile station to a base station, comprising:

transmitting from the mobile station information indicating the communication channel conditions between the relay station and the mobile station, such information including dedicated ranging codes from the mobile station;

instructing the relay station by the base station of the dedicated ranging method used and having a relay station monitored the ranging method;

processing the information received by the relay station in the relay station into a channel condition report;

transmitting from the relay station to the base station the channel condition report.

9. A method for providing communication channel conditions between a relay station and a mobile station to a base station, comprising:

transmitting from the mobile station information indicating the communication channel conditions between the relay station and the mobile station, such information including contention-based initial ranging codes from the mobile station;

instructing the relay station by the base station of the contention-based initial ranging method used and having a relay station monitored the ranging method;

processing the information received by the relay station in the relay station into a channel condition report;

transmitting from the relay station to the base station the channel condition report.