Hierarchical control channel structure for wireless communication

摘要

Techniques for sending control information in a wireless network are described. In an aspect, a hierarchical control channel structure may be used, a first group of control channels may be sent in a low reuse segment, and a second group of control channels may be sent in a non-reuse segment. In another aspect, a first control channel is sent in the low reuse segment and is used to configure a second control channel sent in the non-reuse segment so that the second control channel can be reliably received in dominant interference scenarios. In one design, a first base station sends a first message on a first control channel to a user equipment (UE). The UE sends a second message to an interfering base station to request it to reduce interference to a second control channel. The first base station sends control information on the second control channel to the UE.

主权项

1. A method for wireless communication, comprising:
sending a first message, from a first base station to a user equipment (UE), on a first control channel sent on a low reuse segment with a reuse factor greater than one indicating that a resource may be used by a first plurality of base stations; and sending information on a second control channel, having a non-reuse segment with a reuse factor of one indicating that the resource may be used by a second plurality of base stations that is greater than the first plurality of base stations, from the first base station to the UE, the second control channel observing less interference from an interfering base station due to the interfering base station reducing interference, based at least in part on a second message from the UE, on resources designated for the second control channel,
the second message being sent based on a request associated with the first message.