Abstract:
A method for receiving a broadcast message in a wireless communication device is disclosed. The device receives a broadcast message that has associated therewith a unique message grouping identifier and determines whether the unique message grouping identifier of the received message is equal to a unique message grouping identifier of a previously received message. The device ignores the received broadcast message when the unique message grouping identifier of the received message is equal to the unique message grouping identifier of the previously received message and in some implementations enters sleep mode.
Abstract:
Upon detecting (101) at least a potential soft handoff of a mobile station, wherein the soft handoff would entail a net reduction in allocated system resources for that mobile station, one automatically facilitates adjustment (103) of the forward channel gain for at least one base station as is presently supporting that mobile station prior to actually effecting the net reduction in allocated system resources.
Abstract:
Modulation codes for code division multiple access (CDMA) cellular communications systems that are mutually orthogonal may be generated as a sequence of Walsh codes. A method of assigning Walsh codes includes the steps of (404) receiving as input a status vector (200) for a Walsh code system of length 2n and a selected Walsh code length j = 2n-k; (406) - (418) creating a new status vector for a selected Walsh code length of j from the status vector; (416) creating a search mask for the selected Walsh code length j; (418) creating a search sequence for the selected Walsh code length j; and (434) - (442) searching the search sequence for the next available Walsh code. The status vector is updated (500) to track the assignment and release of each Walsh code of each Walsh code length in the Walsh code system.
Abstract:
A plurality of base stations (600) are programmed (702) with a uniform power-control bit pattern to be sent to a mobile unit during a plurality of power-control bit times, before the mobile unit is acquired on a reverse link. The plurality of base stations are further arranged and programmed to synchronize (704) transmissions of the uniform power-control bit pattern such that the plurality of base stations, when transmitting, send identical power-control bits during each of the plurality of power-control bit times.
Abstract:
A method and apparatus provides for a subscriber device (106) to signal changing from a first network to a second network including receiving via a transceiver (120) at the subscriber device (106) a time value from another network and generating from a clock (124) at the subscriber device (106) a current time value and then using a controller (126) deriving a delta time value between the time value and the current time value. The controller (126) signals the user when the delta time value between the time value and the current time value changes.
Abstract:
A communication device (102), communication node (104), and method for transmitting a message are disclosed. The method includes calculating number of frames (402) in a message to be transmitted from the communication device. The method further includes determining transmission power (404) for the message based on the number of frames. The method further includes transmitting each frame of the message (406) using the determined transmission power.
Abstract:
A correlating receiver is used (102) at a code division multiple access base transceiver station to monitor what may comprise possible multi-path versions of a transmission from an authorized communication system user to provide monitoring results. These monitoring results are then used (103) to detect when one of the possible multi-path versions of the transmission was sourced by an unauthorized communication system user while at least another of the possible multi-path versions of the transmission was, in fact, sourced by an authorized communication system user. In a preferred approach the unauthorized communication system user is then identified (104) as being a clone.
Abstract:
A communication system (300) is provided that reduces a likelihood that a call is set up with a wrong mobile station (MS) when a same Mobile Identification Number (MIN) is shared by multiple MSs (302, 304). In response to receiving a call, the system pages an MS. When the system receives a first page response from the first MS (302) and a second page response from a second MS (304) due to a shared MIN, the system allocates multiple duplicate physical layer parameters to each MS. The system then conveys a first channel assignment to the first MS and a second channel assignment to the second MS, wherein each channel assignment identifies the allocated multiple physical layer parameters. By allocating duplicate physical layer parameters to each MS, the intended MS is able to successfully set up a communication session regardless of an order of conveyance of the channel assignments.
Abstract:
A plurality of base stations (600) are programmed (702) with a uniform power-control bit pattern to be sent to a mobile unit during a plurality of power-control bit times, before the mobile unit is acquired on a reverse link. The plurality of base stations are further arranged and programmed to synchronize (704) transmissions of the uniform power-control bit pattern such that the plurality of base stations, when transmitting, send identical power-control bits during each of the plurality of power-control bit times.