Abstract: Embodiments of the present invention can be used to efficiently transmit access control and traffic information on separate spatial channels. In one embodiment, the invention includes assigning a conventional channel and a first training sequence to a first remote radio and a second training sequence to a second remote radio. Thereafter, the invention can include communicating with the first remote radio on a first spatial channel occupying the conventional channel using the first training sequence, and communicating with the second remote radio on a second spatial channel occupying the same conventional channel using the second training sequence.

Abstract: A data stream is transmitted between a base station and user terminal. A first resource that is available to transmit a page is selected at the base station and the page transmitted from the base station via the first resource. The page is received at the user terminal via the first resource and a second resource that is available to transmit a page response is selected at the user terminal. A page response is transmitted from the user terminal via the second resource in response to the page. A data stream is then transmitted between the base station and user terminal via a third resource. In one embodiment, the first, second and third resources utilize the same sequence of radio frequency resources that follow a hopping sequence among a set of available radio frequency resources. In one embodiment, at least two of the first, second and third resources utilize the same sequence of radio frequency resources. In yet another embodiment, the resources utilize different sequences of radio frequency resources.

Abstract: According to an embodiment of the invention, a method and apparatus are described for data bit sequences. According to an embodiment of the invention, a header is inserted in a data burst. One or more high priority messages of a first type are optionally inserted in the data burst starting after the header. One or more messages of a second type are optionally inserted into the data burst starting at an end of the data burst. One or more low priority messages of the first type are optionally inserted in the data.

Abstract: A method and apparatus are provided that allow a communications stream to be quickly opened between two terminals. According to one aspect of the present invention, the invention includes registering the base station and the user terminal with each other by exchanging identification information and configuration information, sending a request to open a communications stream message from the user terminal to the base station, receiving a channel assignment message from the base station in response to the request message, the channel assignment message including an identification of an assigned communications channel for the communications stream, and sending data from the user terminal and receiving data from the base station over the assigned communications channel.

Abstract: A wireless communication system operates in a combined FDD and TDD mode. During a first time period, data may be transmitted at a first frequency band and received at a second frequency band. During a second time period, data is transmitted at the second frequency band and received at the first frequency band. The first and second time periods may be of identical durations, thereby creating a 50% duty cycle. When the base station operates with multiple frequency bands, spatial processing parameters such as the spatial signature or copy weights of the mobile stations may be collected in all frequency bands, thereby allowing the full processing advantage of adaptive antenna.

Abstract: This invention relates to a method and apparatus for transmitting a downlink signal from a communication station to one or more subscriber units to achieve a desired radiation level over a desired sector (e.g., everywhere), the communication station including an array of antenna elements and one or more signal processors programmed (in the case of programmable signal processors) to weight the downlink signal according to one of a sequence of complex valued weight vectors. The method includes sequentially repeating transmitting the downlink signal, each repetition with a different weight vector from the sequence until all weight vectors in the sequence have been transmitted with. The sequence is designed for achieving the desired radiation level during at least one of the repetitions. In this way, every user in the desired region is transmitted to in the time period.

Abstract: A data stream is transmitted between a base station and user terminal. A first resource that is available to transmit a page is selected at the base station and the page transmitted from the base station via the first resource. The page is received at the user terminal via the first resource and a second resource that is available to transmit a page response is selected at the user terminal. A page response is transmitted from the user terminal via the second resource in response to the page. A data stream is then transmitted between the base station and user terminal via a third resource. In one embodiment, the first, second and third resources utilize the same sequence of radio frequency resources that follow a hopping sequence among a set of available radio frequency resources. In one embodiment, at least two of the first, second and third resources utilize the same sequence of radio frequency resources. In yet another embodiment, the resources utilize different sequences of radio frequency resources.

Abstract: A method and apparatus are provided that dynamically allocates communication streams to provide flexible bandwidth to terminals of a communications system. In one embodiment the invention includes identifying a first terminal and a second terminal to each other for the communication of traffic over at least one of multiple streams; and dynamically allocating and de-allocating further streams based on the traffic to be carried and the traffic capacity of opened streams between the first and the second terminals. The invention may further include comparing traffic to be carried between the first terminal and the second terminal to the capacity of any open streams between the first terminal and the second terminal and allocating or de-allocating at least one stream based on the comparison.

Abstract: A system and method for communicating information between two locations via a wireless microwave link is provided. The system includes at least two antennas, each to transmit information as a narrow beam signal to be directed toward a focal point at a remote location. The antennas include at least one antenna to transmit a narrow beam signal toward a redirection point different from the focal point. A redirection device is located at the redirection point to receive the narrow beam signal from the at least one antenna element and to redirect the received narrow beam signal toward the receiver. The redirection point is located such that the narrow beam signals from the at least two antenna elements converge and overlap to form proximate to the receiver, an interference pattern that includes peaks and nulls having a peak-to-peak spacing narrower than the width of each received narrow beam signal.

Abstract: A method and apparatus are provided that quickly and efficiently closes a stream between two communicating terminals that use repeating time slots in a time division channel. In one embodiment, the invention includes sending a closing message in a first slot from the first terminal to the second terminal to request that the communications stream be closed, listening to the communications stream at the first terminal to determine whether any messages are sent from the second terminal to the first terminal in a slot after the first slot, and closing the stream, if no further messages are received from the second terminal.

Abstract: Calibration signals can be sent on a traffic channel without interrupting a connection between two radios. In one embodiment, the present invention includes receiving, at a second radio, a first traffic signal transmitted on a traffic channel by a first radio during a first time interval, receiving, at the second radio, a calibration signal transmitted on the traffic channel by the first radio during a second time interval, and receiving, at the second radio, a second traffic signal transmitted on the traffic channel by the first radio during a third time interval, wherein the traffic channel supports a connection between the first and second radios.

Abstract: Allocating resources in a circuit switched data network, comprising receiving a request for a resource from a device coupled to the circuit switched data network and granting the resource to the requesting device if the resource is available. If the resource is not available, then examining the instantaneous quantity of data to be transmitted by the requesting device; the rate of change in the instantaneous quantity of data to be transmitted by the requesting device; and the time of utilization of the resource by the requesting device, and granting the resource to the requesting device based on the examination of the three factors.

Abstract: A user terminal can be authenticated by an access point based on one message. In one embodiment, the present invention includes the access point receiving a message containing a shared secret encrypted with an access point public key, a user terminal certificate, and an authenticator string demonstrating possession by the user terminal of a user terminal private key. The access point can decrypt the shared secret using the private key of the access point paired with its private key. The access point can then authenticate the user terminal by checking the authenticator string using a user terminal public key included in the user terminal certificate to verify possession of the user terminal private key by the user terminal.

Abstract: A method and apparatus for estimating the downlink signature for a remote transceiver which is part of a wireless communication system that includes a main transceiver for communicating with the remote transceiver. The main transceiver includes an array of transmit antenna elements. The method uses the remote transceiver for receiving signals when the main transceiver transmits downlink calibration signals. When the main transceiver also has a receive antenna array, the remote transceiver can transmit uplink calibration signals to the main transceiver for determining an uplink signature. The downlink and uplink signatures are used to determine a calibration function to account for differences in the apparatus chains that include the antenna elements of the arrays, and that enable downlink smart antenna processing weights to be determined from uplink smart antenna processing weights when the main transceiver includes means for smart antenna processing according to weights.

Abstract: According to an embodiment of the invention, a method and apparatus are described for data bit sequences. According to an embodiment of the invention, a header is inserted in a data burst. One or more high priority messages of a first type are optionally inserted in the data burst starting after the header. One or more messages of a second type are optionally inserted into the data burst starting at an end of the data burst. One or more low priority messages of the first type are optionally inserted in the data.

Abstract: Embodiments of the present invention can be used to efficiently transmit access control and traffic information. In one embodiment, the invention includes generating an access control burst to be transmitted from a radio to a first remote radio, and generating a traffic burst to be transmitted from the radio to a second remote radio, the traffic burst being part of an existing logical connection between the radio and the second remote radio. Then the inventions can include transmitting a signal including the access control burst and the traffic burst in a timeslot on a carrier. This signal can be transmitted from a plurality of antenna elements using spatial processing.

Abstract: Embodiments of the present invention can be used to efficiently transmit access control and traffic information on separate spatial channels. In one embodiment, the invention includes assigning a conventional channel and a first training sequence to a first remote radio and a second training sequence to a second remote radio. Thereafter, the invention can include communicating with the first remote radio on a first spatial channel occupying the conventional channel using the first training sequence, and communicating with the second remote radio on a second spatial channel occupying the same conventional channel using the second training sequence.

Abstract: Embodiments of the present invention can be used to send a page from a base station to a user terminal using a hardware resource indicated by a hopping sequence. In one embodiment, the invention includes the base station selecting a hardware resource from a plurality of distributed and independent hardware resources, such as DSPs, based on a hopping sequence that indicates a sequence of hardware resources over periods of time. The base station can then transmit a page to a user terminal using the selected hardware resource.

Abstract: Embodiments of the present invention can be used to efficiently receive access control and traffic information. In one embodiment, the invention includes receiving a signal at a radio in a timeslot on a carrier using a plurality of antenna elements, the signal including an access control burst from a first remote radio and a traffic burst from a second remote radio, the traffic burst being part of an existing logical connection between the radio and the second remote radio. The access control burst and the traffic burst can then be extracted using spatial processing.

Abstract: A partial spatial signature can be determined to be used in calibration. In one embodiment, determining the partial spatial signature includes receiving a first segment of a waveform, the first segment resulting from a radio transmitting a combined signal from a first antenna element, the combined signal comprising the sum of a first signal and a second signal, and calculating a first spatial signature related measurement using the received first segment, the first signal and the second signal. The process may further include receiving a second segment of the waveform, the second segment resulting from the radio transmitting the first signal from the first antenna element, and the radio simultaneously transmitting the second signal from a second antenna element, and calculating a second spatial signature related measurement using the second received segment, the first signal, and the second signal.