| 摘要 |
The disclosure relates to a method in a base station subsystem, BSS, for transmission of radio link control, RLC, blocks in an extended sequence number space, SNS, and extended transmit window size on multiple downlink carriers. An RLC/Medium Access Control, MAC, header having a fixed number of bits comprises multiple control fields. A number of bits of the RLC/MAC header comprise a block sequence number, BSN, space, the BSN space includes at least one BSN field, each BSN field including a respective BSN. The method includes selecting one or more spare bits in the RLC/MAC header. Each RLC block is indexed with a BSN selected from a range of block indices representing an extended sequence number space and extended transmit window size, where the BSN is included in a BSN field of an expanded BSN space including the selected one or more spare bits. |
