Abstract:
Speech of an unknown amount and control message data (150) of known amount are multiplexed so that the coded voice data is transmitted before the elapse of a predetermined number of frames. A variable rate vocoder (110) receives and codes the speech of an unknown amount at one of full and less than full rates to produce the coded voice data. A multiplexer (120) receives the coded voice data from the variable rate vocoder (110) and sends frames containing the coded voice data when the variable rate vocoder operates at a full rate. When the variable rate vocoder (110) operates at a less than full rate, the multiplexer (120) sends frames containing portions of the message data together with the coded voice data. However, when the number of frames remaining before a predetermined number of flames has been sent is the minimum number of frames necessary to send remaining of the control message data (150) together with the coded voice data at less than full rate, the variable rate vocoder (110) is forced to a voice coding rate lower than full rate. The lower than full rate voice coding of the variable rate vocoder (110) reduces the amount of coded voice data to send in a frame and makes space in the frame to send remaining of the control message data (150) together with the coded voice data.
Abstract:
The invention uses a 'look-uptable' to elimiate the need to transport IP headers across the air interface (and terrestrial backhaul in some cases) when transporting IP packets to and from mobile communication devices 1. This resolves some of the spectrum efficiency issues related to transport of IP packets.
Abstract:
A code division multiple access (CDMA) communication system (100) implements a service option change in a mobile station (106) by including data representing the service option to be employed in a handoff message (500) transmitted from a base station (102) to the mobile station (106). Use of the handoff message (500) as a medium to change a service option eliminates the cumbersome negotiation technique currently required to perform a service option change prior to handoff of the mobile station (106) from a first coverage area (104) to a second coverage area (110) or from a first channel to a second channel within a given coverage area (104).
Abstract:
Speech of an unknown amount and control message data (150) of known amount are multiplexed so that the coded voice data is transmitted before the elapse of a predetermined number of frames. A variable rate vocoder (110) receives and codes the speech of an unknown amount at one of full and less than full rates to produce the coded data. A multiplexer (120) receives the coded voice data from the variable rate vocoder (110) and sends frames containing the coded voice data when the variable rate vocoder operates at a full rate. When the variable rate vocoder (110) operates at less than full rate, the multiplexer (120) sends frames containing portions of the message data together with the coded voice data. However, when the number of frames remaining before a predetermined number of frames necessary to send the remaining of the control message data (150) together with the coded voice data at less than full rate, the variable rate vocoder (110) is forced to a voice coding rate lower than full rate.
Abstract:
A radio transceiver (119) including a transmitter (111), a receiver (107), and a controller (113). The controller (113) creates a fixed period reference signal (201) and a second reference signal (203) which has a variable delay in time from the fixed period reference signal (201). In addition the controller (113) creates a plurality of control signals used to control parts of the transceiver (119) and which are time dependant upon the second reference signal 203). Therefore, the adjusting of the variable delay of the second signal subsequently adjusts the plurality of control signals.
Abstract:
The invention uses a 'look-uptable' to elimiate the need to transport IP headers across the air interface (and terrestrial backhaul in some cases) when transporting IP packets to and from mobile communication devices 1. This resolves some of the spectrum efficiency issues related to transport of IP packets.
Abstract:
A communication device (102), communication node (104), and method for transmitting a message are disclosed. The method includes calculating number of frames (402) in a message to be transmitted from the communication device. The method further includes determining transmission power (404) for the message based on the number of frames. The method further includes transmitting each frame of the message (406) using the determined transmission power.
Abstract:
An apparatus (100) generates a preferred roaming list (108) for a wireless mobile station (404) that includes area identification data (such as GEO GROUP ID) (200) corresponding to an area serviced by at least one wireless wide area network, such as a ground based CDMA system and an area services by at least one in-vehicle wireless pico-cell (402), such as a wireless CDMA pico-cell located on an aircraft or any other suitable vehicle. The area identification data (200) is associated with a wireless in-vehicle pico-cell system identification data (205) and in the case of a CDMA pico cell system, a system identification data SID) and network identification (NID) data pair (206) associated with the in-vehicle wireless pico-cell (402).
Abstract translation:一种装置(100)为包括对应于由至少一个无线广域网服务的区域的区域识别数据(例如GEO GROUP ID)(200))的无线移动台(404)生成优选漫游列表(108) 例如基于地面的CDMA系统以及由至少一个车载无线微微小区(402)(诸如位于飞机上的无线CDMA微微小区或任何其它合适的车辆)的区域服务。 区域识别数据(200)与无线车载微微小区系统识别数据(205)相关联,并且在CDMA微微小区系统的情况下,系统识别数据SID和网络标识(NID)数据对(NID) 206)与车载无线微微小区(402)相关联。
Abstract:
A mobile station (106) in a code division multiple access (CDMA) communication system (100) implements scanning of pilot channels on a different frequency by reserving a periodic frame on the forward channel to allow the mobile station (106) to change frequencies and scan for other pilot channels. To preserve some aspects of voice quality, both the base station (102) and mobile station (106) voice encode speech at a maximum of half rate and transmit the information as secondary traffic prior to the frame where the mobile station (106) scans the alternate frequency. To maximize the trade-off between voice quality and frequency of the scan, the base station (102) indicates to the mobile station (106) the period between other frequency scans via messaging. To ensure compatibility, this method can be negotiated via known service configuration negotiation techniques.
Abstract:
In the various embodiments, base station (103), or base station controller (101), will determine whether mobile station (107) is sending access requests beyond a limit predetermined to represent normal mobile station behavior. If the mobile station exceeds this limit, the network, via base station (103) or other base stations such as base station (105), will send a maintenance message to the mobile station (107) for the purpose of limiting its access requests. The maintenance message may comprise a parameter that specifies a limited number of access requests (109), (111) the mobile station (107) may make within a given time period. The mobile station (107) may still be allowed to send access requests (109) for the purpose of making an emergency call, and may further be limited to sending access requests only if the emergency call is placed from the mobile station (107) keypad.