METHOD AND APPARATUS FOR CONTROLLING CROSS LINK ESTABLISHMENT
First Claim
1. A terminal wireless transmit/receive unit (T-WTRU) for establishing a cross link (XL) with a helper WTRU (H-WTRU), the T-WTRU comprising:
- a receiver configured to receive basic system information from the H-WTRU; and
a processor configured to determine whether to establish a XL with the H-WTRU based on the basic system information, wherein on a condition that the T-WTRU determines to establish a XL with the H-WTRU, the T-WTRU further comprises;
a transmitter configured to transmit a selected as H-WTRU message to the H-WTRU.
2 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for controlling crosslink (XL) establishment are disclosed. In the method and apparatus, the XL between a terminal wireless transmit/receive unit (T-WTRU) and a helper WTRU (H-WTRU) is controlled, whereby the T-WTRU and the H-WTRU may be in a radio resource control (RRC) Idle mode and may perform discontinuous reception (DRX). Further, the T-WTRU may transition between infrastructure coverage mode and WTRU-to-WTRU (W2W) coverage mode. Additionally, neighbor discovery and H-WTRU selection are performed and association between the T-WTRU and H-WTRU is established and maintained.
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Citations
15 Claims
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1. A terminal wireless transmit/receive unit (T-WTRU) for establishing a cross link (XL) with a helper WTRU (H-WTRU), the T-WTRU comprising:
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a receiver configured to receive basic system information from the H-WTRU; and a processor configured to determine whether to establish a XL with the H-WTRU based on the basic system information, wherein on a condition that the T-WTRU determines to establish a XL with the H-WTRU, the T-WTRU further comprises; a transmitter configured to transmit a selected as H-WTRU message to the H-WTRU. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A terminal wireless transmit/receive unit (T-WTRU) for maintaining association with a helper WTRU (H-WTRU), the T-WTRU comprising:
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a receiver configured to receive a first keep live message from the H-WTRU during a wake up period in discontinuous reception (DRX); and a transmitter configured to transmit a second keep alive message to the H-WTRU, the second keep alive indicates the T-WTRU seeks to maintain the association with the H-WTRU. - View Dependent Claims (8, 9, 10, 11)
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12. A base station for controlling helper wireless transmit/receive unit (H-WTRU) selection, the base station comprising:
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a receiver configured to receive a first message from a first neighbor present WTRU (NP-WTRU), the first message indicating receipt of a neighbor discovery initiation transmission (NDIT) from a neighbor seeking WTRU (NS-WTRU); a processor configured to start a timer; the processor further configured to select a H-WTRU upon expiration of the timer; and a transmitter configured to transmit a neighbor discovery response message to the H-WTRU, the neighbor discovery response message indicating selection of the H-WTRU to relay cross link (XL) data associated with NS-WTRU. - View Dependent Claims (13, 14, 15)
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Specification