Patent ID: 7965740
Filing Date: 2011-06-21
Classification: H04L,H04W

Abstract:
1. A method of generating a data block to be transmitted to a receiving side at a protocol layer performing a header compression function in a wireless communication system, the method comprising: generating at least one of a compressed packet by performing the header compression function for an upper layer data block received from an upper layer and a control packet having no relation with the upper layer data block; and if the compressed packet is generated, generating a first lower layer data block which includes the compressed packet, and generating a second lower layer data block which includes the control packet, wherein each of the first lower layer data block and the second lower layer data block includes an indicator indicating whether the corresponding lower layer data block includes the compressed packet or the control packet, and wherein the second lower data block further includes type indication information indicating whether the control packet includes header compression feedback information, and wherein the first lower layer data block is generated by ciphering the compressed packet and adding the indicator to the ciphered compressed packet whereas the second lower data block is generated by adding the indicator and the type indication information to the control packet without ciphering the control packet.