SYSTEM AND METHOD OF USING TDM VARIABLE FRAME LENGTHS IN A TELECOMMUNICATIONS NETWORK
First Claim
1. A method of using variable frame lengths in a telecommunications system, the method comprising the steps of:
- transmitting by a transmitting unit a plurality of frames having a variable or arbitrary frame length, the concatenation of which exceeds the time available for payload frame transmission prior to the next succeeding repetitive reference instant, to a receiving unit, for deferring the transmission of the frame pattern reference from its nominal reference instant of transmission;
determining an offset value that specifies the delay in frame pattern transmission;
sending the offset value to the receiving unit;
receiving the plurality of frames having a variable or arbitrary frame length, a frame pattern reference signal, and the offset value at the receiving unit; and
reconstructing a reference instant derived from the offset value.
2 Assignments
0 Petitions
Accused Products
Abstract
A system, method, and node for efficiently packing payload of variable or arbitrary frame lengths into a TDM telecommunications system transmission. A transmitting unit transmits a plurality of frames whose concatenation does not precisely fit into the interval between TDM framing synchronization patterns to a receiving unit. An offset value is determined, which specifies the consequent delay in transmission of a TDM framing synchronization pattern. The offset value is then sent to the receiving unit in conjunction with the TDM framing signal. The receiving unit receives the plurality of frames and the offset value and reconstructs a precise reference instant derived from the offset value. By reconstructing the precise interval boundary, the receiving unit remains synchronized with the transmitting unit.
30 Citations
32 Claims
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1. A method of using variable frame lengths in a telecommunications system, the method comprising the steps of:
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transmitting by a transmitting unit a plurality of frames having a variable or arbitrary frame length, the concatenation of which exceeds the time available for payload frame transmission prior to the next succeeding repetitive reference instant, to a receiving unit, for deferring the transmission of the frame pattern reference from its nominal reference instant of transmission; determining an offset value that specifies the delay in frame pattern transmission; sending the offset value to the receiving unit; receiving the plurality of frames having a variable or arbitrary frame length, a frame pattern reference signal, and the offset value at the receiving unit; and reconstructing a reference instant derived from the offset value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for using variable frame lengths in a telecommunications system, the system comprising:
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a transmitting unit for transmitting a plurality of frames having a variable or arbitrary frame length, the concatenation of which exceeds the time available for payload frame transmission prior to the next succeeding repetitive reference instant, thereby deferring the transmission of the frame pattern reference from its nominal reference instant of transmission; determining means within the transmitting unit for determining an offset value that specifies the delay in frame pattern transmission from its nominal reference instant; the transmitting unit for transmitting the offset value; a receiving unit for receiving the plurality of frames having a variable or arbitrary frame length, a frame pattern reference signal, and the offset value from the transmitting unit; and a reconstruction mechanism within the receiving unit for reconstructing a reference instant derived from the offset value. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A node for using variable frame lengths in a telecommunications system, the node comprising:
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means for receiving a plurality of frames having variable or arbitrary frame lengths and a frame synchronization reference signal; means for receiving an offset value, the offset value providing an amount of deviation from the specified frame synchronization reference signal; and means for reconstructing a precise reference instant derived from the offset value. - View Dependent Claims (23, 24, 25, 26, 30, 31, 32)
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Specification