Cooperative wireless networks
First Claim
Patent Images
1. A communication method, comprising:
- sharing at least one WWAN-access parameter in a group of mobile wireless terminals for enabling the group to access a channel in a wireless wide area network (WWAN);
employing a wireless local area network (WLAN) for configuring the group to communicate cooperatively in the channel;
selecting a plurality of the mobile wireless terminals to perform cooperative subspace processing, wherein each of the plurality of the mobile wireless terminals provides an insufficient number of linearly independent combinations of WWAN signals to enable demultiplexing the WWAN signals, wherein the plurality of the mobile wireless terminals provides a vector comprising a plurality of linearly independent combinations of WWAN signals expressed by y=Hx+υ
, where H is a matrix of coefficients, x is a vector comprising the WWAN signals andυ
denotes noise, wherein the plurality of the mobile wireless terminals is selected to provide H with a sufficient rank to enable demultiplexing the WWAN signals; and
generating subspace array processing weights and combining the linearly independent combinations of WWAN signals for demultiplexing the WWAN signals.
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Abstract
A wireless local area network (WLAN) communicatively couples together a group of mobile wireless terminals configured to operate in a wireless wide area network (WWAN). A network-management operator processes WWAN-control messages used by the mobile wireless terminals and the WWAN. One or more of the mobile wireless terminals may function as the network-management operator.
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Citations
34 Claims
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1. A communication method, comprising:
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sharing at least one WWAN-access parameter in a group of mobile wireless terminals for enabling the group to access a channel in a wireless wide area network (WWAN); employing a wireless local area network (WLAN) for configuring the group to communicate cooperatively in the channel; selecting a plurality of the mobile wireless terminals to perform cooperative subspace processing, wherein each of the plurality of the mobile wireless terminals provides an insufficient number of linearly independent combinations of WWAN signals to enable demultiplexing the WWAN signals, wherein the plurality of the mobile wireless terminals provides a vector comprising a plurality of linearly independent combinations of WWAN signals expressed by y=Hx+υ
, where H is a matrix of coefficients, x is a vector comprising the WWAN signals andυ
denotes noise, wherein the plurality of the mobile wireless terminals is selected to provide H with a sufficient rank to enable demultiplexing the WWAN signals; andgenerating subspace array processing weights and combining the linearly independent combinations of WWAN signals for demultiplexing the WWAN signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 20, 21, 22, 23)
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10. A mobile wireless terminal, comprising:
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a wireless wide area network (WWAN) interface for communicatively coupling to a WWAN; a wireless local area network (WLAN) interface for communicatively coupling to at least one other mobile wireless terminal; a network function adapter communicatively coupled to the WLAN and configured to receive at least one WWAN-access parameter shared with the at least one other mobile wireless terminal for enabling the mobile wireless terminal and the at least one other mobile wireless terminal to access a common WWAN channel, and communicate cooperatively in the common WWAN channel; and a MIMO processor configured for providing a plurality of linearly independent combinations of WWAN signals expressed by y=Hx+υ
, where H is a matrix of coefficients, x is a vector comprising the WWAN signals, and υ
denotes noise, the MIMO processor selecting the mobile wireless terminal and the at least one other mobile wireless terminal for building up a dimension of a linear subspace spanned by H to provide a sufficient rank for demultiplexing the WWAN signals, wherein each of the mobile wireless terminal and the at least one other mobile wireless terminal provides an insufficient number of linearly dependent combinations of WWAN signals to enable demultiplexing the WWAN signals, and generating subspace array processing weights and combining the linearly independent combinations of WWAN signals for demultiplexing the WWAN signals. - View Dependent Claims (11, 12, 13, 24, 25, 26)
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14. A communication system, comprising:
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a wireless local area network (WLAN) for communicatively coupling together a plurality of mobile wireless terminals, each of the mobile wireless terminals communicatively coupled to a wireless wide area network (WWAN); a WWAN-access controller configured for sharing at least one WWAN-access parameter between the plurality of mobile wireless terminals for enabling the plurality of mobile wireless terminal to access a common WWAN channel and communicate cooperatively in the common WWAN channel; and a MIMO processor communicatively coupled to the WLAN and configured for providing a plurality of linearly independent combinations of WWAN signals expressed by y=Hx+υ
, where H is a matrix of coefficients, x is a vector comprising WWAN signals, and ν
denotes noise, the MIMO processor selecting a plurality of the mobile wireless terminals to provide H with a sufficient rank for demultiplexing the WWAN signals, wherein each of the plurality of the mobile wireless terminals provides an insufficient number of linearly independent combinations of WWAN signals to enable demultiplexing the WWAN signals, the MIMO processor generating subspace array processing weights and combining the linearly independent combinations of WWAN signals for demultiplexing the WWAN signals. - View Dependent Claims (15, 16, 17, 18, 19, 27, 28, 29)
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30. A mobile wireless terminal, comprising:
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a WWAN interface configured to be communicatively coupled to a WWAN; a WLAN interface configured to be communicatively coupled to at least one other mobile wireless terminal via a WLAN; a network function adapter communicatively coupled to the WLAN and configured to share at least one WWAN-access parameter with the at least one other mobile wireless terminal for enabling the mobile wireless terminal and the at least one other mobile wireless terminal to access a common WWAN channel and communicate cooperatively in the common WWAN channel; and a MIMO processor configured for providing a plurality of linearly independent combinations of WWAN signals expressed by y=Hx+υ
, where H is a matrix of coefficients, x is a vector comprising the WWAN signals, and υ
denotes noise, the MIMO processor selecting the mobile wireless terminal and the at least one other mobile wireless terminal for building up a dimension of a linear subspace spanned by H to provide a sufficient rank for demultiplexing the WWAN signals, wherein each of the mobile wireless terminal and the at least one other mobile wireless terminal provides an insufficient number of linearly independent combinations of WWAN signals to enable demultiplexing the WWAN signals, the MIMO processor generating subspace array processing weights and combining the linearly independent combinations of WWAN signals for demultiplexing the WWAN signals. - View Dependent Claims (31, 32, 33, 34)
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Specification