摘要:
A method in a wireless communications device including obtaining timing advance, for example, by determining (430) timing advance based on a distance of the wireless device from a base transceiver station. In some embodiments, the timing advance and corresponding location information is stored in a look-up table on the wireless device. The look-up table data may be populated or updated from timing advance information generated on the wireless device and/or obtained from some other source. In some embodiments, the wireless device transmits a modified access or normal burst when using a timing advance determined on the wireless communications device.
摘要:
The present invention provides a method for managing in a mobile subscriber the traffic flow of a communication connection during a cell reselection. The method includes communicating via a communication connection with a first cell, and monitoring communication conditions, while communicating with the first cell. An approximate time is then determined, when conditions associated with the flow of communication via the communication connection with the first cell is consistent with transferring the flow of communication to a communication connection with a second cell. The mobile subscriber then establishes a communication connection with the second cell, while maintaining the communication connection with the first cell. The method further includes routing the flow of the communication from the communication connection with the first cell to the communication connection with the second cell, and releasing by the mobile subscriber the communication connection with the first cell, proximate the time that the flow of communication is routed from the communication connection with the first cell to the communication connection with the second cell.
摘要:
A method in a wireless communications network connected to a packet network including receiving (410) at a packet server handover information, e.g., neighbor measurements, from a wireless communications device, negotiating (420) with the radio communications network, e.g., with a base station controller, for a radio resource transfer for a mobile wireless communications device, and sending (440), from the packet server, radio resource information to the mobile wireless communications device.
摘要:
A change in a client device is detected (306) during a transmission of a plurality of packets destined to at least one first destination used by at least one packet session. In response to the change, a determination (312) is made as to whether some but not all of the plurality of packets should be redirected to at least one second destination based, at least in part, on at least one predefined criterion. Accordingly, some but not all of the plurality of packets is redirected (316) to the at least one second destination when the some but not all of the plurality of packets should be redirected according to the at least one predefined criterion.
摘要:
A system and method for to establish a wireless group call from one of a plurality of communication units to others communication units includes a first step of receiving, from a requesting communication unit a request for a group call with other communication units of the group. A next step includes allocating a common downlink channel for the group call. A next step includes allocating a dedicated uplink channel for the requesting communication unit. A next step includes switching one of the communication units between the common channel mode and a dedicated channel mode depending upon performance criteria.
摘要:
Communications are established between an originating mobile station (104) and a target mobile station (120) in an expedited manner. An initial short packet is transmitted from an originating mobile station (104) and the initial short packet is translated into an Internet Protocol (IP) packet. The IP packet is transmitted to a target Packet Control Unit (PCU) (116). An acknowledgment IP packet is responsively received from the target mobile station (120) via the target PCU (116) and a communication link is established between the originating mobile station (104) and the target mobile station (120).
摘要:
The present invention provides a method for routing data from a service request in a communication system. A context is transferred from a packet data gateway, such as a Serving GPRS (GSM Packet Radio Service) Support Node (SGSN), to a Base Station System (BSS) coupled thereto. The context specifies where data for this user should be sent. The service request is received at the BSS and includes data. The data from the service request is routed to an appropriate location, based at least in part upon the context.
摘要:
To address the need for a dispatch mobile (303, 305, 307) to more quickly make a call, in the preferred embodiment of the present invention those remote units operating in a dispatch mode (303, 305, 307) will receive a first slot cycle, while those remote units not operating in a dispatch mode (302, 304, 306, 308) will receive a second slot cycle. The second slot cycle is greater than the first slot cycle, so that those remote units operating in dispatch mode (303, 305, 307) will “wake up” during the slot cycle normally utilized for interconnect calls. Because shorter slot cycles are utilized for remote units operating in dispatch mode (303, 305, 307), the time it takes to make a dispatch call is greatly reduced. Additionally the minimum slot cycle duration typically used for standard calls remains unchanged, greatly conserving battery life.
摘要:
A communication system comprising a mobile station and a network implements a persistent packet data control channel that provides for a continuous exchange of control information, such as system information (SI) messages and handoff-related information. The mobile station implements the persistent packet data control channel by mapping the persistent packet data control channel to a packet associated control channel when a packet associated control channel is available and to a virtual associated control channel when a packet associated control channel is not available. The virtual associated control channel allows the mobile station to pass control information to network in the absence of an uplink Temporary Block Flow (TBF).
摘要:
A cellular system (100) includes network equipment (102, 104) and user equipment (106). The network equipment can operate to inspect incoming messages from user equipment to identify service applications and direct incoming messages using the domain specified by the user equipment. User equipment can operate to construct messages for communication to a base station, which messages specify one of the circuit switch service domain (206) and the packet switch service domain (204) for the service and transmitting the constructed message to the base. According to one aspect of the system, the network equipment can transmit application and service information to the user equipment, responsive to which the user equipment can select the preferred domain for a message or session.