Patent ID: 8908667
Filing Date: 2014-12-09
Classification: H04B,H04W

Abstract:
1. A system for selecting antenna paths between an antenna and a plurality of protocol processing devices, the system comprising: an arbiter circuit configured to produce a plurality of media access grant indicators in response to a plurality of media access request signals from the plurality of protocol processing devices, wherein the plurality of protocol processing devices comprises (i) a Bluetooth component configured to process radio frequency (RF) input signals and RF output signals according to a Bluetooth protocol and (ii) a wireless local area network (WLAN) component configured to process RF input signals and RF output signals according to a WLAN protocol, wherein each media access grant indicator is produced based on multiple media access request signals from multiple protocol processing devices, and wherein the plurality of media access grant indicators comprises (i) a Bluetooth media access grant indicator indicating whether a bi-directional Bluetooth path is authorized, (ii) a WLAN receive access grant indicator indicating whether WLAN reception is authorized, and (iii) a WLAN transmit access grant indicator indicating whether WLAN transmission is authorized; and a selector circuit configured to (i) receive the plurality of media access grant indicators from the arbiter circuit, (ii) determine a compatibility of media access grants corresponding to the plurality of media access grant indicators, and (iii) produce antenna path selection outputs based on the determined compatibility of media access grants corresponding to the plurality of media access grant indicators, wherein the antenna path selection outputs enable one or more of the antenna paths between the antenna and the plurality of protocol processing devices and wherein the antenna path selection outputs include a shared access selection to enable receive paths from the antenna to two or more of the plurality of protocol processing devices.