摘要:
The embodiments disclosed provide a manner of transmitting voice information that strikes an improved balance between voice quality and RF capacity in a CDMA dispatch environment. In general, two half-rate vocoder frames (201 and 202) are assembled into a single full rate transmit frame (200) to enable the transmission of alternating full-rate frames. Additionally, an individual CRC (203 and 204) is provided for each half-rate frame within the transmit frame to allow for partial recovery when frame corruption or erasure occurs. In this manner, system capacity is improved, particularly in the CDMA dispatch environment, while preserving voice quality.
摘要:
A method is provided for preemptively protecting mobile units within a wireless communication system from interference caused by sudden high speed data transmission within the system. The method includes detecting an imminent high speed data transmission in at least one particular cell of the system. At least each current local mobile unit is identified that is in signal communication with a base station of the at least one particular cell. A current operating level for at least each of the current local mobile units is determined. A necessary increase in the current operating level is estimated for at least each of the current local mobile units. A transmit time is predicted for when the imminent high speed data transmission will occur. The current operating level for at least each of the current local mobile units is increased by the corresponding necessary operating level increase at a time no later than the predicted transmit time.
摘要:
A wireless communication system transmits data over a first link from a first mobile station (MS) to an infrastructure at a first speaker link power level, and over a second link from the infrastructure to a second MS at a first listener link power level, during a first time period. Each of the first power levels is designed to avoid the need for retransmissions of erroneously received data. Upon expiration of the first time period, data is transmitted over the first and second links at reduced power levels, which transmissions include retransmissions of erroneously received data. Error targets used in the transmission of data may also be adjusted after expiration of the first time period. In addition, the power levels and error rate targets may be individually adjusted on a link-by-link basis based on the RF loading of each link and/or based on error metrics determined for each link.
摘要:
A method and apparatus for optimizing the mobile media received by a mobile device is disclosed. The apparatus operates with a radio access network, a mobile device operating in the radio access network, and a media server providing mobile media data to the mobile device wherein the mobile device connects to the media server using the radio access network. The apparatus includes a optimization application server coupled to the radio access network. The optimization application server includes positioning indexed performance information based on the positioning information and performance of a plurality of mobile devices operating in the radio access network. The optimization application server triggers adjustments to a parameter at least one of the radio access network, the mobile device and the media server by comparing the location of the mobile device in the radio access network to the optimization application server and sending a message to the radio access network to adjust the parameter.
摘要:
A method is disclosed that includes detecting a temporal loading imbalance in system loading. The imbalance occurs at least at a wireless infrastructure network element in a wireless network. In response to the detecting, one or both of the following are performed: a message is transmitted to a service entity indicating the temporal loading imbalance, the service entity serving one or more video streams to one or more user equipment connected to the wireless network; or one or more modifications are made associated with at least one of the one or more video streams by determining in a current epoch the one or more modifications to apply in one or more upcoming epochs for the at least one video stream, and, in response to the one or more upcoming epochs becoming current epochs, the one or more modifications are applied. Apparatus and program products are also disclosed.
摘要:
A Presence Server receives presence information associated with a Presentity, wherein the presence information comprises one or more presence attributes and the Presentity is associated with a Presence Source and a first Watcher. The Presence Server further receives a request from a second Watcher to view a presence attribute of the one or more presence attributes. The Presence Server may further receive a message from the first Watcher specifying a desire to be notified of who is watching the Presentity, presence attributes being filtered, and/or throttling or deferring of presence attribute updates being implemented by the Presence Server. The Presence Server conveys to the first Watcher watcher notification information that informs of Watchers watching the Presentity, what is being watched, presence attributes being filtered, and/or throttling or deferring of presence attribute updates. The Presentity then determines whether to publish a presence attribute update based on the watcher notification information.
摘要:
Various embodiments are described for potentially reducing the impact of routing area updates on wireless system capacity. Logic flow diagram 10, in FIG. 1, depicts such functionality. In some embodiments, it is determined (12) whether a remote unit is within an edge portion of a routing area, while in other embodiments it is determined (12) whether the remote unit is within an end portion of a routing area update interval. It is also determined (14) whether one or more conditions are present for the remote unit to perform a resource-efficient routing update. A routing area update is then performed (16) when one or more of the conditions are present and when, depending on the embodiment, either the remote unit is determined to be within the edge portion of the routing area or the remote unit is determined to be within the end portion of the routing area update interval.
摘要:
Various embodiments are described which may serve to improve spreading channel code selection in wireless technologies that employ two-stage ranging. For example, some of the embodiments enable a number of spreading codes to be reused at each network node (111, 112), potentially increasing the number of codes available to each remote unit and thereby reducing the collision rate. Rather than simply selecting a spreading channel code randomly, remote units (101-103), in some embodiments, select a spreading channel code based on one or more considerations such as pilot signal strength, remote unit location, a remote unit mobility level, and a priority class associated with the remote unit. Depending on the embodiment, network nodes can partition the spreading codes into groups and then assign link bandwidth to remote units based on the group associated with the code selected by that remote unit.
摘要:
A method and apparatus are disclosed that includes a user equipment (104) sending a first buffer status report to an eNode B (102) to (210) indicate an amount of data in a buffer that is to be sent. After the first buffer status report is sent, the amount of data in the buffer can change (216) so that the user equipment sends (218) a second buffer status report to indicate the change in the amount of data in the buffer that is to be sent.