US 7,924,757 B2Granted

Method for improving power efficiency of subscriber stations

AssigneeIntel Corporation

InventorHujun Yin

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Abstract

Disclosed is a method for improving power efficiency of subscriber stations in a communication network. A subscriber station is uniquely identified by a base station using a connection Identifier (CID). The method includes splitting CIDs of subscriber stations to form a plurality of first parts and a plurality of second parts. The method includes generating an index including a plurality of entries and transmitting the index to a plurality of subscriber stations by the base station. One or more subscriber stations switch to a power-saving mode on absence of a match between each entry of the plurality of entries with an equivalent part of CIDs associated with the one or more subscriber stations, thereby conserving power and improving power efficiency of the subscriber station. Further, at least one information element in a sub-MAP message may be compressed to reduce overhead.

Claims17

Dependent claims

A method for improving power efficiency of subscriber stations in a wireless communication network, the wireless communication network comprising a base station and a plurality of subscriber stations, the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message, each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements, each information element of the plurality of information elements comprising a Connection Identifier (CID), the CID uniquely identifying a subscriber station of the plurality of subscriber stations, the method comprising:

splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts;
generating an index, the index comprising a plurality of entries, wherein the plurality of entries in the index is constituted by one of the plurality of first parts and the plurality of second parts;
transmitting the index to the plurality of subscriber stations by the base station;
switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations;
and
recombining each CID split by the base station, wherein each subscriber station of the plurality of subscriber stations recombines a split CID to determine the resource allocation information when the equivalent part of CID associated with the subscriber station matches an entry of the plurality of entries in the index.

3 more elements

A computer program product embodied on a non-transitory computer readable medium improving power efficiency of subscriber stations in a wireless communication network, the wireless communication network comprising a base station and a plurality of subscriber stations, the base station communicating resource allocation information to the plurality of subscriber stations using at least one sub-Media Access Protocol (sub-MAP) message, each sub-MAP message of the at least one sub-MAP message comprising a plurality of information elements, each information element of the plurality of information elements comprising a Connection Identifier (CID), the CID uniquely identifying a subscriber station of the plurality of subscriber stations, the computer program product comprising a program module having instructions for:

splitting each CID into a first part and a second part based on pre-defined criteria to form a plurality of first parts and a plurality of second parts;
generating an index, the index comprising a plurality of entries, wherein the plurality of entries in the index is constituted by one of the plurality of first parts;
transmitting the index to the plurality of subscriber stations by the base station;
and
switching to a power-saving mode by one or more subscriber stations of the plurality of subscriber stations on absence of a match between each entry of the plurality of entries in the index and an equivalent part of CIDs associated with the one or more subscriber stations;
and
recombining each CID split by the base station, wherein each subscriber station of the plurality of subscriber stations recombines a split CID to determine the resource allocation information when the equivalent part of CID associated with the subscriber station matches an entry of the plurality of entries in the index.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/872,263Filed 15 Oct 2007
Published: US 2009/0097426 A116 Apr 2009
Granted: 12 Apr 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04W 28/06
Traffic management, e.g. flow control or congestion control: optimizing the usage of the radio link, e.g. header compression, information sizing ,…
H04W 52/0229
Using monitoring of external events, e.g. the presence of a signal: where the received signal is a wanted signal
H04W 72/12
Local resource management: wireless traffic scheduling
Y02D 30/70
Reducing energy consumption in communication networks: in wireless communication networks