Multiplexing scheme for unicast and broadcast/multicast traffic
AssigneeLucent Technologies Inc.
InventorFarooq Khan
Life of this patent
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Abstract
A method is provided for efficiently multiplexing interlaced broadcast traffic over a wireless network. The multiplexing scheme organizes unused slots in at least some base stations so that unicast traffic employing hybrid ARQ may be delivered therein.
Claims8
A method for coordinating transmissions within a first and second cell using an n-slot interlacing structure, the method comprising:
- transforming a first block of broadcast information into first and second subpackets;
- transmitting the first subpacket within the first and second cells during a first time slot;
- transmitting the second subpacket within the second cell during a second time slot;
- transforming a second block of the broadcast information into third and fourth subpackets;
- transmitting the third subpacket within the first and second cells during an n+1 time slot;
- and
- transmitting the fourth subpacket within the second cell during an n+2 time slot.
A method for receiving broadcast transmissions from a first and second cell using an n-slot interlacing structure, the method comprising:
- receiving a first subpacket from the first and second cells during a first time slot;
- receiving a second subpacket from the second cell during a second time slot;
- combining the first subpackets received from the first and second cells;
- receiving a third subpacket from the first and second cells during an n+1 time slot;
- receiving a fourth subpacket from the second cell during an n+2 time slot;
- combining the third subpackets received from the first and second cells;
- receiving a first subpacket of unicast information from the first cell during the second time slot;
- and
- receiving a retransmission of the first subpacket of unicast information from the first cell during the n+2 time slot.
A method for coordinating transmissions within a first and second cell using an n-slot interlacing structure, the method comprising:
- forming a plurality of first and second subpackets from a plurality of blocks of broadcast information;
- periodically transmitting one of the first subpackets within the first and second cells during a first common time slot in each n-slot interlacing structure;
- periodically transmitting one of the second subpackets within the second cell during a second common time slot in each n-slot interlacing structure;
- transmitting unicast information in at least a portion of the slots in each n-slot structure that are free from transmissions of the first and second subpackets.
Dependencies are inferred from the claim text.