Reverse link lower layer assisted video error control
First Claim
Patent Images
1. A method comprising:
- encoding video data and audio data by an encoder device;
forming an Internet protocol (IP) packet with the encoded video data and an IP packet with the encoded audio data using a module of the encoder device;
transmitting the packets across a wireless channel to an access network using a transceiver of the encoder device;
at a medium access control (MAC) layer of the encoder device, receiving a negative acknowledgement (NAK) from the access network;
determining, using the module of the encoder device, whether the received NAK is associated with a packet that contains video data;
determining, using the module of the encoder device, which IP packet contains data that was lost in transmission; and
only if the received NAK is associated with a packet that contains video data, performing error control by the encoder device.
2 Assignments
0 Petitions
Accused Products
Abstract
The disclosure relates to reverse link lower layer assisted video error control. A method may encode video data, form a packet with the encoded video data, and transmit the packet across a wireless channel to an access network. A medium access control (MAC) layer may receive a negative acknowledgement (NAK) from the access network. The method may determine whether the received NAK is associated with a packet that contains video data. If the received NAK is associated with a packet that contains video data, the method may perform error control.
-
Citations
37 Claims
-
1. A method comprising:
-
encoding video data and audio data by an encoder device; forming an Internet protocol (IP) packet with the encoded video data and an IP packet with the encoded audio data using a module of the encoder device; transmitting the packets across a wireless channel to an access network using a transceiver of the encoder device; at a medium access control (MAC) layer of the encoder device, receiving a negative acknowledgement (NAK) from the access network; determining, using the module of the encoder device, whether the received NAK is associated with a packet that contains video data; determining, using the module of the encoder device, which IP packet contains data that was lost in transmission; and only if the received NAK is associated with a packet that contains video data, performing error control by the encoder device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method comprising:
-
encoding a first frame of video data and audio data by an encoder device; forming a packet with the encoded first frame of video data and a packet with the encoded audio data using a first module of the encoder device; transmitting the packets across a wireless channel to an access network using a transceiver of the encoder device; before encoding a second frame of video data by the encoder device, determining using a second module of the encoder device whether a medium access control (MAC) layer received a negative acknowledgement (NAK) from the access network; determining, using the second module of the encoder device, whether the received NAK is associated with a packet that contains video data; and only if the received NAK is associated with a packet that contains video data, then performing error control by the encoder device. - View Dependent Claims (13, 14, 15, 16, 17)
-
-
18. An apparatus comprising a machine-readable memory storing a set of instructions configured to:
-
encode video data and audio data; form an Internet protocol (IP) packet with the encoded video data and an IP packet with the encoded audio data; transmit the packets across a wireless channel to an access network; at a medium access control (MAC) layer, receive a negative acknowledgement (NAK) from the access network; determine whether the received NAK is associated with a packet that contains video data; determine which IP packet contains data that was lost in transmission; and only if the received NAK is associated with a packet that contains video data, perform error control. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
-
29. An apparatus comprising a machine-readable memory storing a set of instructions configured to:
-
encode a first frame of video data and audio data; form a packet with the encoded first frame of video data and a packet with the encoded audio data; transmit the packets across a wireless channel to an access network; before encoding a second frame of video data, determine whether a medium access control (MAC) layer received a negative acknowledgement (NAK) from the access network; determine whether the received NAK is associated with a packet that contains video data; and only if the received NAK is associated with a packet that contains video data, then perform error control. - View Dependent Claims (30, 31, 32, 33, 34)
-
-
35. An apparatus comprising:
-
an encoder configured to encode video data and audio data; a module configured to form an Internet protocol (IP) packet with the encoded video data and an IP packet with the encoded audio data; a transceiver configured to (a) transmit the packets across a wireless channel to an access network, and (b) receive a medium access control (MAC) layer negative acknowledgement (NAK) from the access network; wherein the module is configured to determine whether the received NAK is associated with a packet that contains video data and determine which IP packet contains data that was lost in transmission; and only if the received NAK is associated with a packet that contains video data, the encoder is configured to perform error control.
-
-
36. An apparatus comprising:
-
an encoder configured to encode a first frame of video data and audio data; a first module configured to form a packet with the encoded first frame of video data and to form a packet with the encoded audio data; a transceiver configured to (a) transmit the packets across a wireless channel to an access network and (b) receive a medium access control (MAC) layer negative acknowledgement (NAK) from the access network; before encoding a second frame of video data, a second module configured to determine whether the MAC layer received a NAK from the access network and determine whether the received NAK is associated with a packet that contains video data; and an error control module configured to perform error control only if the received NAK is associated with a packet that contains video data.
-
-
37. An apparatus comprising:
-
means for encoding video data and audio data by an encoder device; means for forming an Internet protocol (IP) packet with the encoded video data and an IP packet with the encoded audio data using a module of the encoder device; means for transmitting the packets across a wireless channel to an access network using a transceiver of the encoder device; means for receiving a negative acknowledgement (NAK) from the access network at a medium access control (MAC) layer of the encoder device; means for determining, using the module of the encoder device, whether the received NAK is associated with a packet that contains video data; means for determining, using the module of the encoder device, which IP packet contains data that was lost in transmission; and means for performing error control by the encoder device only if the received NAK is associated with a packet that contains video data.
-
Specification