Abstract: A dual-band antenna includes a first antenna element having a generally “J” shaped element, and a second antenna element having a generally “h” shaped element. The first antenna element and the second antenna element share a common feed point and each antenna element is oriented substantially perpendicular to the other. The first antenna element and the second antenna element, in one implementation, are adapted to efficiently operate the dual-band antenna at approximately 1575 MHz and approximately 850 MHz, respectively.

Abstract: A method, wireless controller, and information processing system that define communication channel allocation. Communication channel allocation commands associated with a first network are monitored (102). The first network (102) comprises a plurality of communication frequencies assigned by the communication channel allocation commands. A set of communication frequencies are determined that have been assigned to wireless devices (108) associated with the first network (102) in response to the monitoring. A specification of unused communication frequencies within the plurality of communication frequencies are transmitted to a second network (104) in response to the determining.

Abstract: 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.

Abstract: A method of transmitting a data packet on a communication path from a first communication node (CN1, CN2) to a second communication node (LFN1, LFN2) in a mobile network (115). The method includes receiving a route message (1010, 1020) from the second communication node, wherein the route message includes a list of intermediary addresses ({MR1-COA}, {MR1-COA, MR2-COA}) between the first communication node and the second communication node. A preferred communication path is generated in response to the list of intermediary addresses; and at least one data packet is transmitted from the first communication node to the second communication node via this preferred communication path. In this matter, an optimized data path is determined in order to send at least one data packet to an intended recipient (LFN1, LFN2), for example in a nested mobile network scenario.

Abstract: Various embodiments are described herein to address the need for reducing call setup delays with respect to supplemental channels. Modifications to channel assignment messaging (104), such as an enhanced ECAM, and service connection messaging (108), such as an enhanced SCM, are described. These modifications enable the assignment of SCHs (110) earlier in the call setup sequence. In addition, embodiments for determining and anticipating when such modified messaging may effectively speed the transfer of data (including VoIP) between a BS (201) and an MS (210) are described.

Abstract: To address the need for a method and apparatus to more efficiently facilitate dormant mode, packet data mobile handoffs, the present invention provides more efficient messaging between the BS and MSC involved in the handoff. Prior art messaging that provides for the establishment of a traffic channel for the MS is streamlined in cases where a traffic channel is not needed. Also, connectionless messages are used to save the processing otherwise required to establish a connection between the BS and MSC. Thus, using the present invention, dormant mode, packet data mobile handoffs can be processed with less signaling and fewer system resources than by using the prior art.

Abstract: Various embodiments are described herein to address the need for providing substantially reduced PTT call setup delays. Modifications to channel assignment request messaging (400), such as an IS-2000 Reconnect Message and an IS-2000 Origination Message, are described. In addition, the use of common control channel signaling (e.g., 201), changes to page response messaging (e.g., 301) and new uses for A9-Short Data Delivery messaging (e.g., 203 and 303) are described. Embodiments incorporating some or all of these protocol changes, can provide reduced end-to-end call setup time for PTT as it presently exists in IS-2000 systems.

Abstract: Various embodiments are described to address the need to lower backhaul costs for EGPRS operators while maintaining the low and constant delay characteristics they require. 20 msec TRAU frames (221-226) are still used for backhaul to maintain the low and constant delay. However, to eliminate the restriction of mapping TRAU timeslots to air timeslots (211-218) one-to-one, the TRAU slots are collectively treated as a one large 20 msec TRAU frame for a group of air timeslots. The data for the air timeslots can be packed efficiently into this giant TRAU frame, ignoring backhaul timeslot boundaries. In this way, the appropriate amount of backhaul for the carrier can be allocated and the data for the air interface timeslots more efficiently packed into the backhaul.

Abstract: The present application describes various embodiments that address the need to dynamically manage wireless call settings to more optimally utilize system capacity. When a radio access network (RAN)(e.g., 105, 110, and 120) receives a data packet (e.g., 200) associated with a wireless call, it determines an application type associated with the data packet and/or an internet domain associated with the call. The RAN then adjusts call settings associated with the wireless call based on the application type and/or on the internet domain. In this manner, call settings such as, but not limited to, a target frame error rate, radio link protocol (RLP) parameters, a supplemental traffic channel (SCH) assignment priority, a carrier assignment group, and a billing rate can be applied more dynamically with respect to services used in the call.

Abstract: To address the need to support multiple packet data service instances in a more efficient manner, various signaling enhancements are provided. These enhancements will result in faster packet data call setups, reactivations, and dormant handoffs of multiple service instances while reducing over-the-air signalling. For originations of multiple packet data service connections, the mobile (101) requests the setup of up to six service instances with a single origination message (e.g., 400). For packet data dormant handoffs, the mobile requests the handoff of up to six service instances using a single message. And for reactivations, the mobile requests the reconnection of multiple, dormant packet data service instances with a single message.

Abstract: To address the need for reducing wireless data transfer delay, an embodiment of this invention provides for a radio access network (RAN) (110) to transmit data, such as a data query, at the time of paging a dormant wireless unit (101). By transmitting the data at this time, wireless unit activity in response to the data can begin while the paging and traffic channel setup proceed. Thus, once established, the traffic channel will be idle for less time than under the present practice were data is not sent until the traffic channel setup is completed. Less idle traffic channel time is expected to improve channel utilization and contribute to lower packet data costs.

Abstract: To address the need for a communication infrastructure and method for preserving bandwidth when IP messaging is used, the present invention provides for the transmission of information without an IP header and for the subsequent generation of such a header as a message is processed by the infrastructure.

Abstract: To address the need for an apparatus and method for transcoding among multiple wireless protocols, the present invention provides a framework for more generalized transcoding. A voice processing resource (e.g., 105) of a transcoder (101) receives the dynamic transcoding attributes (e.g., 201–207) for a frame and then transcodes that frame according to the requirements of the transcoding attributes. These dynamic attributes may contain information such as the wireless protocol involved, the frame type, the source type, the sequence number, the delivery timing requirements, and the delivery mode of subsequent frames.

Abstract: To address the need for an apparatus and method for CDMA-dispatch soft handoff, the present invention provides soft handoff to mobile stations (MSs) (120–123) in a dispatch call by sharing soft handoff information with all the MSs in the call at a base site (111). When a first MS (e.g., 120) needs to soft handoff, the identity of a soft handoff channel (135) at an adjacent base site (112) is shared with all the MSs. Thus, subsequent MSs (e.g. 122) that need to soft handoff to that adjacent base site may do so without requesting a soft handoff.

Abstract: The need for reducing the time required for call setup in a wireless communication system (100) is addressed herein. A base station (BS 104) sends a channel assignment message to a mobile station (MS 102) and performs traffic channel initialization procedures with the MS. After completing the traffic channel initialization procedures, the BS sends a base station acknowledgment message to the MS and proceeds to transmit signaling to the MS without waiting to receive an MS acknowledgment in response to the base station acknowledgment message. Thus, the time normally taken to receive the MS acknowledgment is saved and call setup time reduced.

Abstract: A system (100), receiver (160-190) and method of operation for spread OFDM wireless communication (single user OFDM-CDMA with cyclic-prefix) by: equalizing the received spread OFDM signal (y) and splitting it into first and second portions (?1, ?2); making a decision on the second portion and subtracting the second portion from the received signal to produce a first difference signal; processing the first difference signal to recover the first portion of the received signal in which symbol interfering terms of the second portion are substantially reduced; making a decision on the first portion and subtracting the first portion from the received signal to produce a second difference signal; and processing the second difference signal to recover the second portion of the received signal in which symbol interfering terms of the first portion are substantially reduced. The process may be iterated extensively at this stage.

Abstract: This invention relates to a communication system (200), user equipment (201,211) and method of performing a conference call. The communication system (200) employs discontinuous transmission and has a plurality of user equipment (201, 211, 213, 215) and a fixed network (205, 207, 208). It further comprises a speech metric processor (225) for determining if speech is originating at the user equipment. The system also comprises a silence descriptor frame generator (229) which generate silence descriptor frames if no speech is originating and a conference call processor (231) for determining if a call involving the user equipment is a conference call. Furthermore the communication system comprises means (229, 239) for suppressing silence descriptor information of the silence descriptor frames if the call is a conference call. The invention is applicable to cellular mobile radio communication systems such as UMTS.

Abstract: To address the need for a communication unit, a communication infrastructure, and method that extend battery life, the present invention provides a special page message (200) that is transmitted toward the beginning of a paging slot to indicate what groups of messages will be transmitted in the paging slot. This message allows communication units (e.g., 102–104) to determine near the beginning of the paging slot whether they need to continue monitoring the paging slot for messages or pages directed or of interest to them. The message also allows communication units that continue monitoring the paging slot to determine when they can cease the monitoring. Thus, communication units can return to a power-saving sleep mode more quickly than the prior art.

Abstract: Using conventional techniques, a common power control channel provides information used by mobile stations for power control operation of each mobile station. In accordance with the present invention, the common power control channel is also used to provide information used by the mobile stations for purposes other than the power control operation of each mobile station. In one embodiment, the information used for purposes other than power control operation comprises information instruction the mobile station to transition to an active state. In another embodiment, the information used for non-power control purposes is transmitted to mobile stations during periods in which the power control information is not being transmitted. Using a common power control channel in this manner substantially reduces the resources consumed by a mobile station while operating in a stand-by state.

Abstract: An apparatus including a processor 42 coupled to a memory 44 resides in a location call filtering center 36 and cooperates with a gateway mobile location center 34 and a mobile switching center 22 to process a communication signal, based on the geographical location of a communication device 28, such as a mobile telephone. The processor 42 accesses a user location filter database 46 stored in the memory 44 which contains a set of subscriber conditions/preferences that may be used to identify a processing operation to be performed on the call. The processor 42 further operates as an Internet web page server to afford mobile subscribers Internet 56 access to the user location filter database 46 so that the mobile subscribers may enter and/or edit the set of conditions/preferences stored in the memory 44.