Abstract: The present invention provides a method of wireless communication using a mobile unit and first and second base stations. The method includes receiving, from the second base station, a notification of a switch of the first base station to the second base station. The method also includes providing at least one message to the second base station in response to receiving the notification.

Abstract: One embodiment includes distributing user traffic packets to a plurality of queues, and draining the queues of the user traffic packets according to a defined methodology. The drained user traffic packets are sent to a plurality of physical channel interfaces. Each of the plurality of physical channel interfaces interfaces with a respective channel of the backhaul. The sending step sends each of the drained user traffic packets to the physical channel.

Abstract: There is provided a system and method for compressing voice-over-IP headers. More specifically, in one embodiment, there is provided a method comprising receiving a voice-over-IP packet including at least one packet header that contains a set of one or more packet header field values, selecting a content identifier that corresponds to the one or more packet header field values of the received packet, replacing at least one of the packet-header field values in the received packet with the selected content identifier, thereby to create a compressed voice-over-IP packet, and transmitting the compressed voice-over-IP packet across a network connection.

Abstract: In one embodiment, a relationship is determined between radio link protocol (RLP) sequence numbers in received RLP packets and real-time protocol (RTP) sequence numbers in RTP packets decompressed from the received RLP packets. An RTP sequence number associated with a compressed RTP packet is determined based on the determined relationship and at least one of the RLP sequence numbers of the received RLP packet or packets forming the compressed RTP packet. An RTP time stamp may be determined in a similar manner.

Abstract: A method of receiving data packets. In the method of receiving data packets, a determination is made as to whether a received data packet is received out of an expected order. If the determining step determines a received packet is out of the expected order, a time period is calculated to wait for one or more missing data packets based at least in part on an expected time of receiving the one or more missing data packets.

Abstract: In one embodiment, the method includes determining, at a first network element, whether to turn on compression of a header for a packet transport protocol used for a communication flow between the first network element and a second network element. The determining is based on a type of the communication flow, and the packet transport protocol is a protocol for transport of packets between the first and second network elements. The method further includes sending a compression mode indictor to the second network element along with a context identifier. The compression mode indicator indicates the determination, and the context identifier for use in identifying the communication flow.

Abstract: One embodiment includes distributing user traffic packets to a plurality of queues, and draining the queues of the user traffic packets according to a defined methodology. The drained user traffic packets are sent to a plurality of physical channel interfaces. Each of the plurality of physical channel interfaces interfaces with a respective channel of the backhaul.

Abstract: In one embodiment, a relationship is determined between radio link protocol (RLP) sequence numbers in received RLP packets and real-time protocol (RTP) sequence numbers in RTP packets decompressed from the received RLP packets. An RTP sequence number associated with a compressed RTP packet is determined based on the determined relationship and at least one of the RLP sequence numbers of the received RLP packet or packets forming the compressed RTP packet. An RTP time stamp may be determined in a similar manner.

Abstract: The probability of a time out and the resulting waste of channel capacity in a communication system is decreased by controlling the length of the time out period so as to minimize the number of time outs that occur. The length of the time out is based on the sum of the average channel delay and four times the deviation in the channel delay. A delay is introduced into the communication channel so as to increase the deviation in the channel delay. This results in an increase in the length of time required for a time out. As a result, the number of time outs is drastically decreased which in turn decreases the number of wasteful ramp up times that results in a more efficient use of channel capacity.