scispace - formally typeset
Patent

Call set-up in a radio communication system with dynamic channel allocation

Reads0
Chats0
TLDR
The call set-up technique of as discussed by the authors is characterized by the use of channel information from both base station and subscriber terminal in determining the radio traffic channel upon which to set up a new call.
Abstract
The call set-up technique of this invention is characterized by the use of channel information from both base station and subscriber terminal in determining the radio traffic channel upon which to set-up a new call. Communication between the base station and subscriber terminal is carried out on a signalling channel until the traffic channel is chosen. Calls are set-up so that they proceed on the radio channel which, of a set of channels under consideration by the subscriber terminal, contains the least amount of interference as measured at the subscriber terminal. The set of channels under consideration by the subscriber terminal is a subset of the entire set of channels allocated to the service. This subset is comprised of those channels having little interference, as measured by the base station. The call set-up technique thereby assures that calls proceed on channels containing little interference from the viewpoints of both base station and subscriber terminal.

read more

Citations
More filters
Patent

Cellular digital packet data mobile data base station

TL;DR: In this article, a channel hopping scheme is used based upon avoidance of AMPS channel use to maintain the integrity of CDPD transmission, and a distinctive protocol is used to encapsulate control/query/response data for transmission throughout the CDPD system.
Patent

Multiple Frequency Band Operation in Wireless Networks

TL;DR: In this article, the bandwidth allocation methods, detecting interference with other systems, and/or redeploying in alternate bandwidth are described, where higher bandwidth channels may be deployed at channel boundaries (410), which are a subset of those for lower bandwidth channels (310), and may be restricted from overlapping interference may be detected (930) on primary, secondary, or a combination of channels.
Patent

personal mobile communication system

TL;DR: In this article, the problem of disconnecting the caller's telephone call from the alternate destination and connecting it the called party, thus interrupting the connection between the caller and an alternate destination, was considered.
Patent

Intra-cell common reuse for a wireless communication system

TL;DR: In this article, the channel condition for a terminal in a given sector x is ascertained based on forward and/or reverse link measurements for the terminal, and the terminal is assigned system resources from a common set or a sector-specific set for sector x based on the terminal's channel condition.
Patent

Portable communications and data terminal operating to optimize receipt of both incoming CDPD and AMPS messages

TL;DR: In this paper, a portable radio telephone handset operates as a data transfer terminal as well as an analog cellular telephone subscriber station, and two modes of operation, analog cellular communication mode and a cellular digital packet data (CDPD) mode, are available in the handset.
References
More filters
Patent

Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system

TL;DR: A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell-site using code division multiple access spread spectrum communication signals is described in this paper.
Patent

Private cellular system.

TL;DR: A cellular mobile radio communication (e.g., private cellular system, PCS) that does not have the constraint of being a well defined, pre-planned system was proposed in this paper.
Patent

Channel assigning method in a mobile communication system

TL;DR: In this article, a channel assignment method for use in a mobile communication system is proposed. But the method is not suitable for the case of wireless networks, where the mobile station selects the communication radio channel transmitted by the base station, measures an interference wave reception level, and transmits the measurement result to the base stations, checking whether the measurement results satisfy the quality conditions of a communication path.
Patent

Multichannel telephone system

TL;DR: In this article, a multi-channel RF telephone system that utilizes a dedicated channel status monitor to develop a list of available communications channels, and a common channel transceiver to transmit this list to the telephones is presented.
Patent

Method and apparatus for transmission of telephone calls to a portable, wireless telephone set

TL;DR: In this paper, a method and an equipment for wireless transmission of telephone calls between a stationary unit (1) connected to a telephone set (3) at a short distance from the stationary unit provides that all pairs of units (1, 3) have access to a plurality of common duplex radio speech channels for transmission of calls, and to a common radio signalling channel for transmission referring to connection and disconnection of the speech channels.
Related Papers (5)