公开(公告)号：EP2066085A1

公开(公告)日：2009-06-03

申请号：EP07076030.1

申请日：2007-11-29

Applicant: STMicroelectronics Belgium N.V.

Inventor： Jacops, Davy ,  Van Parijs, Jorgen

IPC: H04L12/56

CPC classification number: H04L47/6215 ,  H04L47/14 ,  H04L47/50 ,  H04W72/1242 ,  H04W72/1263

Abstract: A baseband processor (20) for a Bluetooth device (80) processes packets according to a protocol stack, and uses a Bluetooth host controller interface (30) to receive packets having given priorities, from a higher protocol level or levels. Packet buffers (B1-Bn) are used to buffer the received packets, and the processor reorders the buffered packets according to their priorities, to output a prioritized stream of packets suitable for transmission by a radio part. By prioritising after the HCI interface, rather than before it, the QOS queues can be effectively located at a lower level in the stack. This means the decision made about the order of transmission of the packets, can take place later, meaning a higher probability that a high priority packet can "pass" queues of lower priority packets, and reach the air interface sooner. The reordering can involve a multiplexer (200) arranged to multiplex packets from multiplee packet buffers according to their priorities.

Abstract translation: 用于蓝牙设备（80）的基带处理器（20）根据协议栈处理分组，并且使用蓝牙主机控制器接口（30）从较高的协议级别或级别接收具有给定优先级的分组。 分组缓冲器（B1-Bn）用于缓冲接收到的分组，并且处理器根据其优先级重新排序缓冲的分组，以输出适合于由无线电部分传输的分组的优先级流。 通过在HCI接口之后的优先次序，而不是在之前，QOS队列可以有效地位于堆栈中的较低级别。 这意味着关于分组传输顺序的决定可以在稍后进行，这意味着高优先级分组可以“较低优先级分组的队列”的可能性更高，并且更快到达空中接口。 重新排序可以涉及多路复用器（200），其被布置为根据它们的优先级复用来自多个分组缓冲器的分组。