摘要:
A method in a mobile wireless communications network including sending (210) a reselection communication from a mobile station to the network, and receiving (220), from the network in response to the reselection communication, cell reselection assistance information, for example, a new cell assignment.
摘要:
Methods (200) and apparatus (700) for providing an access to a first communication network (102) through a second communication network (106) by a communication device (108) are disclosed. The communication device (108) having a first identification and supporting a cellular core network signaling protocol of the first communication network (102), upon entering the second communication network, is assigned a second identification by the second communication network (106). The communication device (108) communicates with the first communication network (102) through an alternative network controller (104) utilizing the second communication network (106). Method (500) for providing an access to a preferred communication network out of a plurality of communication networks based upon a predetermined condition is also provided.
摘要:
A method for universal mobile telephone service synchronization by a mobile station operating in a GSM dedicated mode in a wireless communication system including a mobile station sending voice signals to and receiving voice signals from a base station. A voice activity detector transmits control information indicating detection of voice activity at the mobile station, and an equalizer identifies and processes a training sequence and transmitting corresponding information for the training sequence. A physical layer interface determines whether the mobile station is utilizing discontinuous transmission mode, based on the control information from the voice activity detector, and determines whether the based station is utilizing discontinuous transmission mode, based on the correlation information from the equalizer, and universal mobile telephone service synchronization is performed in response to the mobile station and the base station utilizing discontinuous transmission mode.
摘要:
A method for broadcasting messages in a wireless communication system is provided. The method includes employing a paging channel to receive a broadcast event on a wireless device and utilizing the broadcast event to trigger a warning message on the device. For example, the broadcast event can be detected from a natural disaster such as a primary earthquake warning or tsunami.
摘要:
Techniques for transmitting data and training sequence efficiently using new slot and block formats are described. A transmitter processes (e.g., encodes, interleaves, and partitions) a data block to obtain multiple output blocks. For each output block, the transmitter generates multiple bursts having a training sequence that is shared by these bursts. The transmitter sends the multiple bursts for each output block in multiple time slots, e.g., consecutive time slots in one frame. The multiple bursts for each output block may (1) include one or more short training sequences, (2) omit guard periods between adjacent bursts, (3) include a first tail bit field at the start of the first burst and a second tail bit field at the end of the last burst, (4) include at least one stealing flag field, or (5) have any combination of the above.
摘要:
A control scheme using packet headers allows GSM EDGE Radio Access Network (GERAN) systems to increase spectral efficiency through multiplexing techniques, such as superposition coding, multi-user packet transmission, joint detection, and/or joint decoding. A fast feedback scheme for GERAN allows Voice over Internet Protocol (VoIP) frames to be transmitted over GERAN air interfaces without excessive feedback latency. As a result, Hybrid Automatic Repeat-reQuest (H-ARM) acknowledgements may be timely provided for end-to-end VoIP calls that traverse GERAN air interfaces. Additionally, Incremental Redundancy H-ARQ and link quality feedback latencies are decreased.
摘要:
A method (200) for selecting a core network for a communication device includes the steps of: receiving (220) at least one core network identifier; selecting (230) a core network identifier; setting (215) an indicator to indicate whether a substitute core network is allowed; determining (240) whether the selected core network identifier corresponds to a shared network; forming a registration request message containing the selected core network identifier; including (243) the indicator in the registration request message; and transmitting the registration request message.
摘要:
Techniques for efficiently performing network selection using information stored at a terminal are described herein. The terminal may store coverage information for previously detected wireless networks, cell information for previously detected cells in wireless networks, usage information for previously accessed wireless networks, availability information for previously detected wireless networks, almanac information for cells in wireless networks (e.g., information on cells available at different locations and information for acquiring the cells), and/or other information that may be useful for network selection. The terminal may select a wireless network to attempt acquisition based on the stored coverage information and its current location, the stored cell information and information for the current location (e.g., an identity of a cell detected at the current location), the stored usage information, the stored availability information, and/or the stored almanac information.
摘要:
A wireless communication system (100) is configured to send signaling messages through a cell broadcast service (CBS). CBS message pages used to transport signaling messages are identified by assigned message identifiers. Mobile devices (114) within the communication system (100) recognize the CBS messages transporting signaling messages by the message identifiers and pass the signaling messages to an appropriate application or control program module. The message identifier may be used to specify the application or control program module to process the signaling message. The signaling messages transported by the CBS may be used in controlling a multicasting or broadcasting service. Duplicate copies of the CBS message pages may be transmitted and then buffered at the mobile device (114) as they are received until all parts of the signaling message have been received.
摘要:
The invention provides methods and apparatus, including mobile stations to enable the mobile station to encode and/or decode messages, for example messages broadcast by the base station on a broadcast channel. The encoding and decoding is based on a set of rules downloaded to the mobile station into an area of application space or storage dedicated to this function.