Telefonaktiebolaget Lm Ericsson (publ)

Aleksandar Jovanovic

Anders Jonsson

Roger Wallerius

Fredrik Sonnevi

Johan Philip Magnusson

Jakub Jablonski

Johan Magnusson

According to one aspect of the present disclosure, a method is implemented by a first Radio Network Controller (RNC). The first RNC determines a communication link delay of a base station supported by the first RNC. Subsequent to the determining, a request is received from a different, second RNC to add a call leg that includes the base station as a call leg for a call supported by the second RNC. Based on the request, the first RNC transmits a response to the second RNC that indicates the determined communication link delay. According to another aspect of the present disclosure, the second RNC uses the response to perform transport channel synchronization.

Inter-RNC transport channel synchronization

A Radio Base Station (RBS) and a method performed by the RBS comprises receiving a frame Ffrom a network node, the frame having a sequence number N. If the last received frame F, prior to the received frame F, has a sequence number lower than N&#x2212;1, then starting a first timer Thaving a predefined length in time and temporarily storing the received frame F. If a subsequent frame Fhaving a sequence number lower than N and higher than the sequence number of frame Fis received, then the received frame Fis stored. When all frames having a sequence number between the sequence number of frame Fand N have been received during the predefined length of the first timer T, then forwarding the stored frames and/or received frames to the UE in the order of the sequence numbers.

RBS, RNC and respective methods performed thereby for transmitting data to a UE

The present invention relates to a method of, and device in the form of a radio access network supervising entity for, adapting to delay in a communication link established between the radio access network supervising entity and at least one radio base station communicating with a mobile terminal. The method comprises associating a target Connection Frame Number (CFN) to each transmitted data frame, said target CFN being calculated by offsetting an expected CFN with a counter value corresponding to a current communication link delay, repeatedly determining delay of the communication link, and adapting to the delay of the communication link by adjusting transmission time of the transmitted frame, and/or adjusting the target CFN of the transmitted frame, said target CFN being calculated by offsetting the expected CFN with a counter value corresponding to a determined new delay.

Growing community of inventors

Solna, Sweden

Aleksandar Jovanovic