Methods for seamless delivery of broadcast and multicast content across cell borders and/or between different transmission schemes and related apparatus
First Claim
1. A method of communicating information over a channel, comprising:
- framing rows of a first-type of information comprising payload data in a first format over a radio bearer from a first source to generate rows of a second-type of information;
encoding rows of the second-type of information to generate rows of redundancy information comprising parity blocks;
appending the rows of redundancy information to the rows of second-type information to produce an outer code block that comprises rows of the payload data in the second format and the parity blocks;
adding overhead information to each row of the outer code block, wherein the overhead information includes a sequence number; and
transmitting the outer code block to a radio link control layer.
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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.
239 Citations
18 Claims
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1. A method of communicating information over a channel, comprising:
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framing rows of a first-type of information comprising payload data in a first format over a radio bearer from a first source to generate rows of a second-type of information;
encoding rows of the second-type of information to generate rows of redundancy information comprising parity blocks;
appending the rows of redundancy information to the rows of second-type information to produce an outer code block that comprises rows of the payload data in the second format and the parity blocks;
adding overhead information to each row of the outer code block, wherein the overhead information includes a sequence number; and
transmitting the outer code block to a radio link control layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of transmitting a first outer code block and a second outer code block to a wireless communicator, comprising:
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transmitting the first block, wherein the first block has at least one data row and at least one redundancy row, and wherein the each row has a overhead information that includes a sequence number, wherein the second block consists of only data rows; and
when the wireless communicator undergoes a transition, using the sequence number to align the first block with the second block.
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11. A protocol structure for a communication system, comprising:
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a radio link control layer; and
a forward error correction layer disposed above the radio link control layer, wherein the forward error correction layer receives a first-type of information over a radio bearer before the first-type of information reaches the radio link control layer, wherein the forward error correction layer frames the first-type of information into equal size frames before the first-type of information reaches the radio link control layer to generate a second-type of information, wherein the forward error correction layer uses the second-type of information to generate rows of redundancy information that are added to the second-type of information to generate an outer code block, wherein the forward error correction layer adds a sequence number to each frame, before transmitting to the radio link control layer. - View Dependent Claims (12, 13)
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14. A method of encoding information before transmitting the information on a common channel in a system that includes a radio link control layer, comprising:
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receiving the information from a radio bearer; and
outer block coding the information before passing the information to a radio link control layer. - View Dependent Claims (15, 16, 17, 18)
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Specification