摘要:
Techniques for supporting multiple potentially overlapping wireless protocols with a single electronic system are disclosed. In the description that follows, the overlapping protocols are Bluetooth and IEEE 802.11 for wireless networking; however, other overlapping protocols can be supported in a similar manner. A transaction control policy and a collision map are provided to determine which protocol to enable/disable when a conflict arises. Based on the transaction control policy and the collision map, one or more transceivers that operate according to the wireless protocols can be selectively enabled/disabled to avoid actual conflicts.
摘要:
A wireless device is provided with a wireless transceiver having a joint signal transmit/receive section, and a number of signal up/down conversion sections to transmit and receive signals wirelessly in accordance with a first and a second protocol. The wireless device is further provided with a controller/signal processing section to control and perform, in a coordinated manner, the transmit and receive operations in accordance with the two protocols. In various embodiments, the wireless device is further provided with a processor programmed to implement a time sharing schedule to facilitate the coordinated control and performance of the transmit and receive operations. In some of these embodiments, the processor is further programmed to monitor the transmit and receive workloads of the two protocols and adaptively perform the coordinated control and signal processing, based at least in part on the observed workloads. In various embodiments, the protocols may be selected pairs of Bluetooth, 802.11, 802.11a, 802.11b, Home RF and the like. The wireless device may also be used as a master device or a gateway device of two wireless networks.
摘要:
A wireless device is provided with a wireless transceiver to transmit and receive signals in accordance with a first protocol to and from network devices of a first wireless network, and a controller manager to control operation of the wireless transceiver. The wireless device is further provided with a wireless receiver to receive signals transmitted in accordance with a second protocol by network devices of a second wireless network, and the controller manager is equipped to control operation of the wireless transceiver based at least in part on at least one signaling characteristic of the received signals from network devices of the second wireless network, to reduce interference with proximately located ones of the network devices of the second wireless network. In various embodiments, the controller manager suspends operation of the wireless transceiver whenever interference is predicted. In other embodiments, the controller manager causes an appropriate filter to be applied whenever interference is predicted.
摘要:
A wireless device is provided with a first wireless transceiver and a second wireless transceiver operative in a coordinated manner and coupled to at least one controller manager. The first wireless transceiver transmits and receives signals in accordance with a first protocol to and from a first network device of a first wireless network communicatively coupled to the apparatus, and the second wireless transceiver transmits and receives signals in accordance with a second protocol to and from a second network device of a second wireless network communicatively coupled to the apparatus. The wireless device is further provided with a network manager to coordinate the transmit and receive operations of the first wireless transceiver and said the second wireless transceiver in order to enable the wireless device to communicate contemporaneously with the first and second wireless networks. The network manager may be further configured to coordinate the first and second network devices of the first and second wireless networks. This coordination may include, for example, selection of network devices of either the first or the second network as dominant devices that operationally dominate network devices of the other network. The coordination further includes notifying at least one of the dominated devices, from time to time, to temporarily suspend signal transmission in order to proactively avoid frequency interference with the dominant devices.
摘要:
A wireless device is provided with at least one wireless transceiver and at least one controller manager to transmit and receive signals wirelessly to and from network devices of a first and second wireless network, in a coordinated manner, in accordance with a first and a second protocol respectively. The wireless device is further provided with a network manager to coordinate the network devices of the first and second wireless networks to reduce interference between the network devices of the two wireless networks. In various embodiments, the reduction is effectuated through proactive avoidance of interference with dominant devices by dominated devices, whenever an interference is predicted to occur. In other embodiments, the reduction is effectuated through corresponding application of appropriate filtering to correspondingly cancel the respective interfering signals, whenever an interference is predicted to occur.
摘要:
A variable rate transmission system where a packet of variable rate data is transmitted on a traffic channel if the capacity of the traffic channel is greater than or equal to the data rate of the packet. When the rate of the packet of variable rate data exceeds the capacity of the traffic channel, the packet is transmitted on a traffic channel and at least one overflow channel. Also described is a receiving system for receiving and reassembling the data transmitted on the traffic channel and at least one additional overflow channel.
摘要:
A wireless device is provided with a first and a second wireless transceivers to transmit and receive signals wirelessly in accordance with a first and a second protocol, respectively. The wireless device is further provided with a first and a second controller manager to control, in a coordinated manner, the transmit and receive operations of the first and second wireless transmitters. In various embodiments, the wireless device is further provided with at least one time sharing state machine to facilitate the coordinated control of the wireless transceivers. In some of these embodiments, the wireless device is further provided with a workload monitor to cooperate with the at least one time sharing machine to facilitate the coordinated control be adaptively performed, based at least in part on transmit and receive workloads of the two protocols. In various embodiments, the protocols may be selected pairs of Bluetooth, 802.11 FH, 802.11 D, 802.11 High Data Rate, Home RF and the like. The wireless device may also be used as a master device or a gateway device of two wireless networks.
摘要:
In a time gated frequency division duplexing (FDD) data communication system, the base station transmits two data frames on the forward link to the first remote station and receives two data frames on the reverse link from the second remote station at the first time frame. At the second time frame, the base station transmits two data frames to the second remote station and receives two data frames from the first remote station. Data transmission and reception alternate over consecutive time frames. On the forward link, each data frame is covered with a unique Walsh code. The data is also spread with the short PNI and PNQ codes in accordance with the IS-95A standard. The data can be scrambled by the long PN code. The base station delays the long PN code and short PN codes and properly loads the Walsh codes so that the processed data can be properly demodulated and descrambled by the destination remote station.
摘要:
The present invention is a system and method for increasing user capacity on a slotted random access channel in a spread spectrum communications system by using a multi-part access probe. First and second parts of the access probe are modulated using a short PN code sequence, and the entire access probe is modulated using a long PN code sequence. Information to be transmitted by the access probe is modulated on the second part of the access probe, and the access probe is transmitted so that the first part of the probe falls within the boundaries of an access channel slot. In one embodiment, time slots in access channels used for access signal reception are made the length of the first part. In a further embodiment, time slots in a plurality of adjacent access channels used for access signal reception may be longer than said first part but are offset in time from each other by the length or period of the first part.
摘要:
A variable rate transmission system where a packet of variable is transmitted on a traffic channel if the capacity of the traffic channel is greater than or equal to the data rate of the packet. When the rate of the packet of variable rate data exceeds the capacity of the traffic channel, the packet is transmitted on a traffic channel and at least one overflow channel. Also described is a receiving system for receiving and reassembling the data transmitted on the traffic channel and at least one additional overflow channels.