摘要:
Disclosed are devices, methods and computer program products for radio access network (RAN) signal acquisition. In one aspect, a mobile device scans a radio frequency spectrum for RAN signals and detects signals corresponding to a plurality of channels of a first network type having a first channel bandwidth. The mobile device then determines a power level of the detected signal on each of the plurality of channels and discards signals having substantially equal power within a first frequency range to define a remaining set of signals. The first frequency range corresponds to a second channel bandwidth of a second network type and the second channel bandwidth is greater than the first channel bandwidth. The mobile device then ranks the remaining signals based on the determined power level and selects one of the remaining signals for acquisition based on the ranking.
摘要:
An apparatus and method for improving mobile-terminated call set-up performance comprising triggering an inter-radio access technology (IRAT) transition from a source cell to a target cell, remembering the deterministic timing of a plurality of paging occasions in the source cell, and using the deterministic timing for checking at least one paging channel in the source cell during transition to the target cell and before starting to monitor at least one paging channel in the target cell.
摘要:
In a Universal Mobile Telecommunications (UMTS) system, a mobile device reads scheduling information for uplink interference (SIB7) from a Master Information Block, broadcasted on the Broadcast Channel (BCCH). The UE wakes up from the sleep during its periodic paging occasions and reads the paging indicator channel (PICH). If the UE needs to read the PCH, then the UE computes the timing of the next broadcast of SIB7 using the scheduling information broadcast in the MIB on BCCH. Knowing the timing of the next SIB7, the UE can determine if there is an overlap. If overlap is detected, the mobile device demodulates both the paging channel carried by the Secondary Common Control Physical Channel (S-CCPCH) and the broadcast channel carried by the Primary CCPCH, avoiding a mobile-terminated (MT) call setup delay by waiting for the next SIB7 broadcast, which depending upon a SIB7 repetition ranges from 360 msec to 2.56 seconds.
摘要:
A test system may be provided for performing wireless communications testing of electronic devices in a building. The test system may include a mobile cart that transports the device under test to test stations in the building. The test system may include a visible guide track having visible test station indicators. The mobile cart may include an optical sensor for detecting the visible guide track and the visible test station indicators. The mobile cart may transport the device under test to the test stations along the visible guide track. The mobile cart may include a rotating stage to which the device under test may be mounted. The rotating stage may be used to rotate the device under test while the device under test transmits test data to wireless communications equipment in the building during wireless communications testing of the device under test.
摘要:
An apparatus and method for optimizing compressed mode duration comprising collecting a first set of receive signal strength indication (RSSI) measurements from at least one 2G cell; determining a best 2G cell from the at least one 2G cell using the first set of RSSI measurements; identifying at least one second best 2G cells with at least one of the first set of RSSI measurements within a range threshold TR of the best 2G cell; collecting a second set of RSSI measurements from the second best 2G cells; identifying at least one third best 2G cells with at least one of the second set of RSSI measurements within the range threshold TR of the best 2G cell; and collecting a third set of RSSI measurements from the third best 2G cells.
摘要:
An apparatus and method for selecting a best cell during transition between two radio access technologies comprising detecting a first signal from a selected cell, determining a first signal-to-noise ratio (SNR1) measured from the first signal, attempting to acquire and to decode a second signal related to the first signal only one time if the SNR1 is less than a first threshold, and continuing with the rest of the cell selection procedure if a second signal-to-noise ratio (SNR2) measured from the second signal is greater than or equal to a second threshold. In one aspect, the first signal is a frequency correction channel (FCH) signal, and the second signal is a synchronization channel (SCH) signal. In one aspect, the selected cell is selected from a plurality of GSM cells based on at least one of receive signal strength indication (RSSI) criterion or base station identity code (BSIC) criterion.
摘要:
An apparatus and method for reducing call setup time of a wireless communication device including determining an uplink interference information, including the uplink interference information in a paging message to be sent on a Common Control Channel and sending the paging message on the Common Control Channel. In one aspect, the paging message is received, the uplink interference information from the received paging message is obtained, and a RRC connection request message is sent in response to the received paging message.
摘要:
An apparatus and method for reducing call setup time of a wireless communication device including measuring paging intensity, and adjusting SIB7 or SIB14 repetition period based on the measured paging intensity to reduce call setup time. In one aspect, a paging intensity threshold is determined based on the measured paging intensity, and the paging intensity threshold is used to adjust the SIB7 or SIB14 repetition period.
摘要:
Cell reselection comprises monitoring a first indicator indicative of a signaling level of the serving cell, and monitoring second indicators, each indicative of a signaling level of one of plural potential target cells. A timer associated with a potential target cell is initiated when the respective second indicator indicates that the signaling level of the potential target cell is better than the signaling level of the serving cell. Each timer has an associated expiry, and, if at least one timer has been initiated by the expiry of another initiated timer, then, after delaying for an additional period after at least the first timer has expired, a target cell is selected from the potential target cells. The target cell is selected that has a second indicator which indicates that the signaling level of the respective target cell is better than the signaling level of the serving cell.
摘要:
Apparatus and methods for provisioning wireless devices for operation in one or more networks. In one embodiment, a provisioning service may provide access client (e.g., Subscriber Identity Module) data to a secure element in the wireless user device. The device may be preloaded with a provisioning SIM profile. The device may use the provisioning profile to roam onto a carrier, and communicate with a provisioning service, which may present the user with a list of available wireless carriers, such as carriers that service the user's current geographic location. In response to a user selection, the provisioning service may load a SIM profile associated with the selected carrier onto the secure element. The loaded SIM profile can be used to obtain wireless service from the selected carrier. The user may add multiple SIM profiles, and/or may delete SIM profiles.