Abstract:
PROBLEM TO BE SOLVED: To provide a method having better resource utilization for MBMS. SOLUTION: A radio access network and a method are disclosed for sending multimedia broadcasts/multicast services (MBMS) using channel switching. The channel switching is between dedicated and shared/common channels. The network and the method include MBMS reception scheduling for use when a wireless transmit/receive device receives an MBMS service from multiple transmission sources. The sources transmitting the MBMS service data in differing orders. One embodiment uses in-band segmentation information and another embodiment uses out-of-band synchronization information. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide point to multi-point services, to which flexibility is added for handling a plurality of reception points, when multiple transmissions are made over a downlink-shared channel, using valuable radio resources. SOLUTION: Service data are transmitted in a wireless communication system. An indicator is synchronously transmitted for reception of a user group in a cell of a system (80). The user group does not include all of the users of the cell. Each of the user groups receives a service indicator. Each of the user groups monitors a service ID, transmitted over a downlink-shared channel (82). The service data are transmitted over the downlink-shared channel with the service ID (84). Each of the user groups detects the service ID and receives the service data of a downlink-shared channel (86). COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To convert an input signal from analog to digital comprehensivelywith high resolution. SOLUTION: An ADGC device 30 which avoids some of the requirements associated with the property of a closed-loop AGC circuit and which meets the remaining requirements without much difficulty. The ADGC device 30 uses an analog to digital conversion method that increases the number of effective bit number of ADC by compressing the baseband input analog signal using a logarithmic circuit 34. After the compressed analog signal is converted into a digital signal, a digital anti-log processing or look-up table LUT42 is used to expand the digital signal back to the original linear scale. The word size of the output of the anti-log processing is larger than the input word size due to the nature of the anti-log function. To reduce the word size of the digital signal an open loop normalization technique can be applied. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To measure CQ in a proper timing, and arbitrarily transmit the information to a base station. SOLUTION: In a wireless digital communication system which may employ CDMA technology, a method and system for obtaining CQ (channel quality) measurement for downlink resource allocation, a UE (user equipment) 12 continuously measures RSCP based on a communication on a reference channel provided by the network. The UE 12 continuously measures timeslot ISCP either by configuration or by rotation, and reports downlink CQ. The UE 12 may report the RSCP once and the ISCP per timeslot, or may report some function of RSCP/ISCP ratio such as modulation parameters, or combined coding of all timeslots. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation:用于估计由数据解调器接收和处理的基带信号的SIR以向SIR估计器提供解调信号的信号干扰比(SIR)估计器。 SIR估计器从数据解调器接收解调符号,并将解调符号的平均信号功率估计为基于中值的平均功率值m N d和基于平均值的平均功率值m 正交相移键控(QPSK)星座的每个象限的解调符号的大小。 该函数用于确定m d> and and e a。。。。。。。。。。。。。。。。。。。。。。。。。 SIR估计器估计解调符号的平均有效干扰功率,并且通过将解调符号的估计平均信号功率除以所解调的符号的估计的平均有效干扰功率来计算SIR。 SIR估计器减少对SIR估计的偏差影响。
Abstract:
PROBLEM TO BE SOLVED: To provide a radio local area network (RLAN) including a radio access network Internet protocol (RAN IP) gateway for enabling connection to the public Internet. SOLUTION: A radio local area network (RLAN) for providing concurrent (12) wireless telecommunication service for a plurality of user equipments (UEs), includes at least one base station (Node B) having a transceiver for conducting code division multiple access (CDMA) wireless communication, at least one controller (RNC) for controlling the communications of a group of base stations, and a Radio Access Network Internet Protocol Gateway (RIP GW) having a Gateway General Packet Radio Service Support Node (GGSN) with access router functions for connection with the Internet. COPYRIGHT: (C)2006,JPO&NCIPI