Back to results
US 8,848,673 B2Granted
Beam information exchange between base stations
AssigneeOfinno Technologies, LLC
InventorEsmael Hejazi Dinan
Life of this patent
Estimating the term…
Abstract
A first base station receives an application protocol message from a second base station. The application protocol message comprises an identifier of the second base station and a beamforming codebook. The beamforming codebook comprises a plurality of beamforming codewords. Each of the plurality of beamforming codewords is identifiable by an index. The first base station transmits signals to wireless devices using a subset of the plurality of beamforming codewords.
Claims20
A method comprising:
- a) transmitting, by a first base station, a first message to initiate an association between said first base station and a second base station, said first message comprising a first initiation tag;
- b) receiving, by said first base station, a second message from said second base station, said second message comprising:
- i) a second verification tag, said second verification tag equal to said first initiation tag;
- ii) a second initiation tag;
- and
- iii) a first state parameter comprising:
- (1) at least one parameter related to operational information of said association;
- and
- (2) a message authentication code generated as a function of a private key;
- c) transmitting, by said first base station, at least one third message to said second base station, said at least one third message comprising:
- i) a first verification tag, said first verification tag equal to said second initiation tag;
- and
- ii) a parameter comprising said first state parameter;
- and
- d) receiving, by said first base station, at least one fourth message from said second base station, said at least one fourth message comprising:
- i) an acknowledgement for the receipt of said parameter;
- and
- ii) a first application protocol message, comprising:
- (1) an identifier of said second base station;
- (2) at least one mobility management entity group identifier;
- and
- (3) a second beamforming codebook comprising a second plurality of beamforming codewords, each of said second plurality of beamforming codewords being identifiable by an index, said index presented by a number of bits, said number of bits being:
- (a) greater than or equal to log2(N), N being the number of said second plurality of beamforming codewords;
- and
- (b) less than the number of bits in a corresponding beamforming codeword;
- e) receiving, by said first base station from said second base station, at least one second application protocol message comprising at least one index in a plurality of indexes, said at least one index identifying a subset of said second plurality of beamforming codewords;
- and
- f) transmitting, by said first base station, signals to a plurality of wireless devices employing a first plurality of beamforming codewords from a first beamforming codebook, said first plurality of codewords being selected, at least in part, employing said subset of said second plurality of beamforming codewords.
25 more elements
A method comprising:
- a) receiving, by a first base station, a first application protocol message from a second base station, said first application protocol message comprising:
- i) an identifier of said second base station;
- and
- ii) a second beamforming codebook comprising a second plurality of beamforming codewords, each of said second plurality of beamforming codewords being identifiable by an index, said index presented by a number of bits, said number of bits being:
- (1) greater than or equal to log2(N), N being the number of said second plurality of beamforming codewords;
- and
- (2) less than the number of bits in a corresponding beamforming codeword;
- b) receiving, by said first base station from said second base station, at least one second application protocol message comprising at least one index in a plurality of indexes, said at least one index identifying a subset of said second plurality of beamforming codewords;
- and
- c) transmitting, by said first base station, signals to a plurality of wireless devices employing a first plurality of beamforming codewords from a first beamforming codebook, said first plurality of codewords being selected, at least in part, employing said subset of said second plurality of beamforming codewords.
7 more elements
A first base station comprising:
- a) one or more communication interfaces;
- b) one or more processors;
- and
- c) memory storing instructions that, when executed, cause said first base station to:
- i) receive a first application protocol message from a second base station, said first application protocol message comprising:
- (1) an identifier of said second base station;
- and
- (2) a second beamforming codebook comprising a second plurality of beamforming codewords, each of said second plurality of beamforming codewords being identifiable by an index, said index presented by a number of bits, said number of bits being:
- (a) greater than or equal to log2(N), N being the number of said second plurality of beamforming codewords;
- and
- (b) less than the number of bits in a corresponding beamforming codeword;
- ii) receive from said second base station, at least one second application protocol message comprising at least one index in a plurality of indexes, said at least one index identifying a subset of said second plurality of beamforming codewords;
- and
- iii) transmit signals to a plurality of wireless devices employing a first plurality of beamforming codewords from a first beamforming codebook, said first plurality of codewords being selected, at least in part, employing said subset of said second plurality of beamforming codewords.
11 more elements
Dependencies are inferred from the claim text.