Network layer protocol aware link layer
First Claim
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1. A frame structure for a wireless access network having internet protocol (IP) packets, said frame structure comprising:
- a plurality of radio link protocol (RLP) frames, each said RLP frame corresponding to either a whole IP packet of said wireless access network or a partial IP packet of said wireless access network;
wherein each said RLP frame that corresponds to said whole IP packet includes a non-fragmented RLP frame header that corresponds to a beginning of said whole IP packet;
each said RLP frame that corresponds to said partial IP packet includes a first fragmented RLP frame header that corresponds to a beginning of said partial IP packet and a second fragmented RLP frame header that corresponds to other than said beginning of said partial IP packet; and
whereineach said non-fragmented RLP frame header is 20 bits in length;
each said first fragmented RLP frame header is 21 bits in length; and
each said second fragmented RLP frame header is 32 bits in length.
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Abstract
An enhanced radio link protocol (RLP) in a wireless access network that is network aware is disclosed. The RLP increases radio link quality by various ARQ mechanisms. The RLP framing structure is included that supports and enables at least network layer packet boundary detection, dynamic and adaptive ARO schemes for QoS support on a per-packet basis, and a flexible RLP frame structure for fast adaptation to physical layer channel rate/RLP frame sizes. Optional uses include supporting negative acknowledgment (NAK) based ARQ.
52 Citations
8 Claims
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1. A frame structure for a wireless access network having internet protocol (IP) packets, said frame structure comprising:
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a plurality of radio link protocol (RLP) frames, each said RLP frame corresponding to either a whole IP packet of said wireless access network or a partial IP packet of said wireless access network; wherein each said RLP frame that corresponds to said whole IP packet includes a non-fragmented RLP frame header that corresponds to a beginning of said whole IP packet; each said RLP frame that corresponds to said partial IP packet includes a first fragmented RLP frame header that corresponds to a beginning of said partial IP packet and a second fragmented RLP frame header that corresponds to other than said beginning of said partial IP packet; and
whereineach said non-fragmented RLP frame header is 20 bits in length; each said first fragmented RLP frame header is 21 bits in length; and
each said second fragmented RLP frame header is 32 bits in length. - View Dependent Claims (2)
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3. A frame structure for a wireless access network having internet protocol (IP) packets, said frame structure comprising:
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a plurality of radio link protocol (RLP) frames, each said RLP frame corresponding to either a whole IP packet of said wireless access network or a partial IP packet of said wireless access network; wherein each said RLP frame that corresponds to said whole IP packet includes a non-fragmented RLP frame header that corresponds to a beginning of said whole IP packet; and
each said RLP frame that corresponds to said partial IP packet includes a first fragmented RLP frame header that corresponds to a beginning of said partial IP packet and a second fragmented RLP frame header that corresponds to other than said beginning of said partial IP packet; andwherein said frame structure forms an RLP retransmission mechanism where said RLP frame or part of said RLP frame is a retransmission unit; and wherein said RLP retransmission mechanism includes a negative acknowledgement (NAK) control message, wherein said NAK control message includes; three bits designated for a number of NAKs that are a total number of IP packets requested to re-transmit; one bit designated for retransmit payload type; eight bits designated for an IP packet sequence number; eleven bits designated for an octet sequence number, and six bits designated for octet length; and wherein when said retransmit payload type is zero, said NAK control message further includes six bits designated for a number of holes. - View Dependent Claims (4)
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5. A method for assigning a frame structure for a wireless access network having internet protocol (IP) packets, said method comprising:
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providing a plurality of radio link protocol (RLP) frames, each said RLP frame corresponding to either a whole IP packet of said wireless access network or a partial IP packet of said wireless access network, said RLP frames each aligning with respective boundaries of said IP packets, each said RLP frame that corresponds to said whole IP packet includes a nonfragmented RLP frame header that corresponds to a beginning of said whole IP packet, each said RLP frame that corresponds to said partial IP packet includes a first fragmented RLP frame header that corresponds to a beginning of said partial IP packet and a second fragmented RLP frame header that corresponds to other than said beginning of said partial IP packet; providing a length of 20 bits for each said non-fragmented RLP frame header; providing a length of 21 bits for each said first fragmented RLP frame header; and providing a length of 32 bits for each said second fragmented RLP frame header. - View Dependent Claims (6)
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7. A method for assigning a frame structure for a wireless access network having Internet protocol (IP) packets, said method comprising:
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providing a plurality of radio link protocol (RLP) frames, each said RLP frame corresponding to either a whole IP packet of said wireless access network or a partial IP packet of said wireless access network, wherein each said RLP frame that corresponds to said whole IP packet includes a non-fragmented RLP frame header that corresponds to a beginning of said whole IP packet; and each said RLP frame that corresponds to said partial IP packet includes a first fragmented RLP frame header that corresponds to a beginning of said partial IP packet and a second fragmented RLP frame header that corresponds to other than said beginning of said partial IP packet; and forming an RLP retransmission mechanism where said RLP frame or part of said RLP frame is a retransmission unit that includes a negative acknowledgement (NAK) control message;
further comprisingproviding three bits for a number of NAKs that are a total number of IP packets requested to re-transmit; providing one bit for retransmit payload type; providing eight bits for an IP packet sequence number; providing eleven bits for an octet sequence number; providing six bits for octet length; and
when said retransmit payload type is zero, providing six bits for a number of holes.- View Dependent Claims (8)
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Specification