Methods for forward error correction coding above a radio link control layer and related apparatus
First Claim
1. A system for transmitting information blocks, comprising:
- a destination station comprising a decoder, the decoder configured to receive particular content from a first source and transition to receive a remainder of the particular content from a second source;
the first source of the particular content transmitting first outer blocks for receipt by the destination station, the first outer blocks including information blocks and redundancy blocks generated above the radio link control layer that can be used to reconstruct the information blocks;
the second source of the particular content transmitting second outer blocks comprising information blocks for receipt by the destination station when the destination station undergoes the transition between the first source and the second source,wherein the decoder is further configured to reconstruct any information blocks of the second outer blocks lost during the transition and avoid decoding duplicate information blocks using the redundancy blocks; and
wherein the transmission rate of the information blocks from the second source of the particular content is greater than the transmission rate of the information blocks from the first source of the particular content, and wherein the second source of the particular content starts transmission at a first information block of the first outer block being transmitted when the transition occurs to thereby reduce loss of information blocks during the transition.
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Abstract
Transmission techniques are provided that improve service continuity and reduce interruptions in delivery of content that can be caused by transitions that occur when the User Equipment (UE) moves from one cell to the other, or when the delivery of content changes from a Point-to-Point (PTP) connection to a Point-to-Multipoint (PTM) connection in the same serving cell, and vice-versa. Such transmission techniques enable seamless delivery of content across cell borders and/or between different transmission schemes such as Point-to-Multipoint (PTM) and Point-to-Point (PTP). Mechanisms for adjusting different streams and for recovering content from each data block during such transitions are also provided so that data is not lost during a transition. In addition, mechanisms for realigning data during decoding at a receiving terminal are also provided.
161 Citations
12 Claims
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1. A system for transmitting information blocks, comprising:
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a destination station comprising a decoder, the decoder configured to receive particular content from a first source and transition to receive a remainder of the particular content from a second source; the first source of the particular content transmitting first outer blocks for receipt by the destination station, the first outer blocks including information blocks and redundancy blocks generated above the radio link control layer that can be used to reconstruct the information blocks; the second source of the particular content transmitting second outer blocks comprising information blocks for receipt by the destination station when the destination station undergoes the transition between the first source and the second source, wherein the decoder is further configured to reconstruct any information blocks of the second outer blocks lost during the transition and avoid decoding duplicate information blocks using the redundancy blocks; and wherein the transmission rate of the information blocks from the second source of the particular content is greater than the transmission rate of the information blocks from the first source of the particular content, and wherein the second source of the particular content starts transmission at a first information block of the first outer block being transmitted when the transition occurs to thereby reduce loss of information blocks during the transition. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for transmitting information blocks, comprising:
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a destination station comprising a decoder; a first source of a particular content that transmits first outer blocks over a common channel for receipt by the destination station using a first data transfer mode, wherein the first outer blocks include information blocks and redundancy blocks that can be used to reconstruct the information blocks, wherein the redundancy blocks are generated above a radio link control layer; and a second source of the particular content that transmits second outer blocks comprising information blocks over a dedicated channel for receipt by the destination station using a second data transfer mode when the destination station undergoes a transition, wherein the second outer blocks are aligned with corresponding first outer blocks, wherein the decoder is configured to; receive particular content from the first source and transition to receive a remainder of the particular content from the second source; reconstruct any information blocks lost during the transition using the redundancy blocks; and avoid decoding duplicate information blocks using the redundancy blocks, and wherein the transmission rate of the information blocks from the second source of the particular content is greater than the transmission rate of the information blocks from the first source of the particular content, and wherein the second source of the particular content starts transmission at a first information block of the first outer block being transmitted when the transition occurs to thereby reduce loss of information blocks during the transition. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification