Method and apparatus for resource management in a wireless communication system

摘要

Systems and methodologies are described that facilitate improved resource management in a wireless communication system. As described herein, supergroups can be formed from groups of Physical Hybrid Automatic Repeat Request Channels (PHICHs) such that respective PHICH supergroups are multiplexed onto respective non-overlapping resource element subsets, thereby improving resource usage efficiency for the extended cyclic prefix case and limited numbers of transmit antennas. In one example described herein, even-indexed PHICH groups are mapped to a selected subset of resource elements in a group while odd-indexed PHICH groups are mapped to the remaining resource elements in the group. This mapping can be performed by modifying orthogonal sequences associated with the PHICH groups and/or by performing resource mapping in different manners for respective PHICH supergroups. Upon receiving a transmission of mapped PHICH information, a receiving entity can leverage knowledge of the mapping to decode transmitted PHICH information using the proper resource subset(s).

主权项

1. A method for managing control resources in a wireless communication system, comprising:
identifying a set of control channel groups associated with a first spreading factor and a corresponding set of control resources; grouping the set of control channel groups into N supergroups for a predetermined integer N, each supergroup having a plurality of different control channel groups, each supergroup being associated with a second spreading factor that is greater than the first spreading factor; dividing the set of control resources into N non-overlapping subsets; and mapping the supergroups to respective subsets of the control resources; wherein the predetermined integer N is equal to 2; wherein the wireless communication system utilizes an extended cyclic prefix; the first spreading factor being expanded to the second spreading factor at least in part by appending zeros to the first spreading factor at a first set of code positions for respective control channel groups in a first supergroup and at a second set of code positions that is non-overlapping with the first set of code positions for respective control channel groups in a second supergroup.