Abstract: The present invention employs training sequence hopping in a cellular communications system to permit tight frequency reuse by minimizing or avoiding co-channel interference and/or other signal degrading phenomena. During a first portion of a transmission, e.g., a first burst, a first training sequence is used. During a second portion of that transmission, e.g., a second burst, a second different training sequence is used. Different training sequences are used for different portions of the transmission according to a predetermined training sequence hopping pattern and with a predetermined number of training sequences. The portion duration can extend for the length of a burst, for more than one burst, for a speech frame, or for some other time period.

Abstract: A packet data communication network includes a plurality of base stations for communicating with mobile stations of a user over packet data traffic channels. Radio transmission control nodes control the operation of the plurality of base stations and a scheduler associated with each of the base stations is configured to allocate a first logical control channel associated with a first user application on a first part of an available radio channel resource, and to allocate a second logical control channel associated with at least a second user application on a second part of the available radio channel resource.

Abstract: In a packet switched system used for speech communication, a user entering a silent period, start to transmit silence descriptor information (SID). According to the invention, a speech user is not allocated the same resources for transmission of SID as for the speech communication. Instead, the user is, upon entering a silent period, reallocated to a SID communication channel, shared between a number of different users in silent mode. The resources used for speech may then be more advantageously utilized for other speech users, and is not occupied for SID transmissions only. In an alternate embodiment of the invention, when a mobile station is in silent mode, it receives and transmits associated signaling information on the same transmission resources as those used for the SID transmissions.

Abstract: A method and device for making measurements on a control channel carrier that is not transmitting continuously with constant power is disclosed. In a system transmitting control on, e.g., one timeslot and not keeping a constant power on the other timeslots, the invention makes sure that, e.g., a mobile station always opens its measurement window during the control channel timeslot. A measurement window is made significantly shorter than a timeslot duration.

Abstract: A system and method for a synchronized packet data communication system is described. Briefly control channels are transmitted in a reuse pattern defined by both frequency and timeslot division. Each timeslot division is such that different timeslot groups included in the repetition pattern are separated by at least one timeslot. No traffic data transmissions occur simultaneous to the control channel transmissions. Furthermore, a synchronization channel is introduced to be transmitted on the same physical channel as other packet common control channels.