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US 8,027,281 B2Granted
Adaptive associated control channel messaging
AssigneeSpyder Navigations L.L.C.
InventorsMartti Moisio, Benoist Sébire
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Abstract
An optional short SACCH is used when the network detects high error rate in the normal SACCH channel. The communication returns to normal mode when the network detects that the link quality has improved. In the short SACCH message only the most relevant information fields are sent. The extra bits are used for channel coding so that in the channel conditions where the most robust AMR codings still work, the BLER of short SACCH is still tolerable.
Claims53
A mobile station comprising:
- a receiver configured to receive a command from a network entity, wherein the command indicates a communication mode of a connection, wherein the connection is based on adaptive multi-rate coding, and wherein the communication mode comprises a normal mode or a rescue mode, wherein the selected communication mode is a normal mode if the connection quality is acceptable, and wherein the selected communication mode is a rescue mode if the connection quality is unacceptable;
- and
- a module configured to selectively utilize an adaptive associated control channel (ACCH) message of the connection for error correction based on the indicated communication mode, wherein the adaptive ACCH message is utilized only when the communication mode indicates the rescue mode.
A network entity comprising:
- a detection module configured to detect a connection quality of an associated control channel, wherein the connection is based on adaptive multi-rate coding;
- and
- a selection module configured to select a communication mode based on the connection quality, wherein the selected communication mode is configured to cause utilization of an adaptive associated control channel (ACCH) message of the connection for error correction if the connection quality is unacceptable, wherein the communication mode comprises a normal mode or a rescue mode, wherein the communication mode is a normal mode if the connection quality is acceptable, wherein the communication mode is a rescue mode if the connection quality is unacceptable and wherein the adaptive ACCH message is utilized only when the communication mode indicates the rescue mode.
A method for enhancing communications in a network, the method comprising:
- receiving a command at a receiver from a network entity, wherein the command indicates a communication mode of a connection, wherein the connection is based on adaptive multi-rate coding, wherein the communication mode comprises a normal mode or a rescue mode, wherein the communication mode is a normal mode if the connection quality is acceptable, and wherein the communication mode is a rescue mode if the connection quality is unacceptable;
- and
- utilizing, at a module, an adaptive associated control channel (ACCH) message of the connection for error correction based on the indicated communication mode, wherein the adaptive ACCH message is utilized only when the communication mode indicates the rescue mode.
A method for enhancing communications in a network, the method comprising:
- detecting a connection quality of an associated control channel via a detection module of a network entity, wherein the connection is based on adaptive multi-rate coding;
- and
- selecting a communication mode based on the connection quality via a selection module of the network entity, wherein the selected communication mode is configured to cause utilization of an adaptive associated control channel (ACCH) message of the connection for error correction if the connection quality is unacceptable, wherein the communication mode comprises a normal mode or a rescue mode, wherein the communication mode is a normal mode if the connection quality is acceptable, wherein the communication mode is a rescue mode if the connection quality is unacceptable, and wherein the adaptive ACCH message is utilized only when the communication mode indicates the rescue mode.
A network system comprising:
- a network entity including:
- a detection module configured to detect a connection quality of an associated control channel, wherein the connection is based on adaptive multi-rate coding;
- and
- a selection module configured to select a communication mode based on the connection quality, wherein the selected communication mode is configured to cause utilization of an adaptive associated control channel (ACCH) message of the connection for error correction if the connection quality is unacceptable, wherein the communication mode comprises a normal mode or a rescue mode, wherein the adaptive ACCH message is utilized only when the communication mode indicates the rescue mode, wherein the communication mode is a normal mode if the connection quality is acceptable, and wherein the communication mode is a rescue mode if the connection quality is unacceptable;
- and
- a mobile station including:
- a receiver configured to receive a command from the network entity, wherein the command indicates the selected communication mode of the connection;
- and
- a module configured to selectively utilize the adaptive ACCH message of the connection for error correction based on the selected communication mode.
6 more elements
Dependencies are inferred from the claim text.