Abstract:
PROBLEM TO BE SOLVED: To provide systems and methodologies that facilitate assigning resources for an anchor carrier and an additional carrier by use of a grant message.SOLUTION: The grant message communicated by use of an anchor carrier can include resource information for a plurality of carriers. Moreover, the systems and methodologies facilitate identifying control information for an anchor carrier and/or an additional carrier on the basis of an operating mode. The operating mode is a legacy mode or an extended mode. On the basis of the operating mode, particular resources associated with control regions are monitored for control information for each of anchor carrier(s) or additional carrier(s).
Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for effectively and efficiently exchanging codebooks between an access network and an access terminal.SOLUTION: A method comprises: providing a plurality of preferred precoding matrices; generating a codebook in an access network, in which the codebook comprises the plurality of preferred precoding matrices; and communicating the codebook to one or more access terminals. Communicating the codebook further comprises: querying the one or more access terminals to determine an identity of one or more codebooks currently stored in each access terminal; receiving a codebook status response from each of the one or more access terminals indicating the identity of one or more codebooks stored in each of the one or more access terminals; and communicating the codebook to one or more access terminals if the codebook status response indicates that the codebook is not currently stored in the one or more access terminals.
Abstract:
PROBLEM TO BE SOLVED: To provide transmission power control including transmission power control for a case that there is no transmission of voice and data. SOLUTION: A transmission power having a channel with an active portion and a silent portion is received. The received transmission power is controlled as a function of a parameter of the active portion of the channel during a first time period and independent of the parameter during a second time period. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide techniques for sending control information in a wireless communication system.SOLUTION: A UE spreads control information across frequency with a DFT and across time with an orthogonal sequence. The UE receives codewords for N HARQ processes in N subframes, determines an ACK value for each HARQ process, codes N ACK values for the N HARQ processes to obtain ACK information, determines output data for the ACK information, and sends the output data in one of M uplink subframes. First control information is processed based on a first coding and multiplexing scheme utilizing code division multiplexing in the time and frequency domains. Second control information is processed based on a second coding and multiplexing scheme utilizing code division multiplexing in the time domain and spreading in the frequency domain.
Abstract:
PROBLEM TO BE SOLVED: To provide a method of providing accurate gains based on estimated velocities of mobile stations while storing in each base station a table of gains and pilot channel power levels for the mobile stations to specify traffic channel power levels for the mobile stations, in order to coherently demodulate reverse-link traffic channels in a cdma2000 wireless communication network.SOLUTION: A method of modifying gain tables for reverse-link communications includes the steps of estimating the velocity of a mobile station for a given frame error rate (FER) and data rate, and preparing options of three gains on the basis of the estimated velocity in order to specify a reverse-link transmit power level. The velocity estimation may be performed using a level crossing technique, a covariance approximation technique, or a Doppler spectrum estimation technique.
Abstract:
PROBLEM TO BE SOLVED: To provide an effective signaling technique to a plurality of mobile stations.SOLUTION: A device includes a plurality of CDM coders. Each of the plurality of CDM coders includes: a first coder receiving a plurality of symbol streams and coding each symbol stream by one of a plurality of covering series to form a plurality of covered series; an adder adding the plurality of covered series to form a CDM signal; a time multiplexer receiving a plurality of covered CDM signals and forming a time division multiplex (TDM) signal including the plurality of covered CDM signals; and a second coder performing covering by the covering series to form a covered TDM/CDM signal.
Abstract:
PROBLEM TO BE SOLVED: To facilitate efficiently indicating parameter(s) associated with a base station utilizing synchronization signals in a wireless communication environment.SOLUTION: Relative locations of a PSC and an SSC in a radio frame can be a function of a parameter. A PSC sequence utilized to generate PSCs can be selected based upon a parameter. Inclusion or exclusion of PSCs from a radio frame can be a function of a parameter. Pseudo random sequence mappings (e.g., to cell IDs or tone locations) can be a function of a parameter. Parameters indicate whether the base station is part of a TDD or FDD system, whether the radio frame employs FS1 or FS2, whether the base station is associated with a macro or femto cell, or whether the base station is associated with a unicast or multicast system.
Abstract:
PROBLEM TO BE SOLVED: To provide techniques for efficiently sending control information.SOLUTION: A plurality of control resources are defined and mapped to transmission units for a control segment. For symmetric mapping, multiple sets of control resources are formed, and each batch of L consecutive sets of S control resources is mapped to S transmission units at the same location in the L tiles. For localized mapping, each set of S control resources is mapped to a cluster of S adjacent transmission units in one tile. For distributed mapping, each control resource is mapped to one transmission unit in one tile. For diversity, each control resource is mapped to multiple (e.g., three) transmission units in at least one tile.
Abstract:
PROBLEM TO BE SOLVED: To efficiently manage reverse-link resources by allowing a mobile station to select between transmitting a payload at a standard power level and transmitting a smaller payload at a boosted power level. SOLUTION: The mobile station can autonomously select a QoS (quality of service) level for physical layer packets. Based on reverse-link transmission information received from a base station, the mobile station derives a reverse-link transmission guideline defining the power levels and associated payloads for at least a standard service and boosted service. The mobile station selects a reverse-link transmission power level from a plurality of power levels, including at least a standard reverse-link transmission power level associated with a standard payload size and a boosted reverse-link transmission power level associated with a boosted payload size, where the standard payload size is greater than the boosted payload size. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an effective signaling technique to a plurality of mobile stations.SOLUTION: A device includes: a first Hadamard coder that receives a plurality of symbol streams and codes each symbol stream by one of a plurality of covering series having a pattern repetition to form a plurality of covered streams; an adder performing fewer additions as compared with all of the plurality of covered streams to form a first code-division multiple (CDM) signal; and a second coder covering the first CDM signal by I and Q Walsh covering series to form a first covered CDM signal.