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公开(公告)号:US12035254B2
公开(公告)日:2024-07-09
申请号:US18313986
申请日:2023-05-08
申请人: Sun Patent Trust
CPC分类号: H04W52/367 , H04L5/005 , H04W28/0268 , H04W52/30 , H04W52/346 , H04W52/42 , H04W52/146 , H04W52/34
摘要: Provided are a wireless communication terminal device and a power allocation method, wherein transmission channel quality information, regarding a Pcell having a high probability that UCI is multiplied therein, can be accurately estimated by an SRS having high priority in power allocation, and an eNB can instruct appropriate transmission power to an UL channel which transmits the subsequent UCI. A power scaling detection unit detects whether or not a total transmission power value of the UL channels transmitted by the plurality of CC exceeds the maximum transmission power specific to the UE. When a plurality of SRS are simultaneously transmitted using a Pcell and a Scell, and power scaling occurs, a power scaling control unit performs power allocation so that transmission power of the SRS of the Pcell has the higher priority than that of the SRS of the Scell.
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公开(公告)号:US20220264485A1
公开(公告)日:2022-08-18
申请号:US17737803
申请日:2022-05-05
申请人: Sun Patent Trust
摘要: Provided are a wireless communication terminal device and a power allocation method, wherein transmission channel quality information, regarding a Pcell having a high probability that UCI is multiplied therein, can be accurately estimated by an SRS having high priority in power allocation, and an eNB can instruct appropriate transmission power to an UL channel which transmits the subsequent UCI. A power scaling detection unit detects whether or not a total transmission power value of the UL channels transmitted by the plurality of CC exceeds the maximum transmission power specific to the UE. When a plurality of SRS are simultaneously transmitted using a Pcell and a Scell, and power scaling occurs, a power scaling control unit performs power allocation so that transmission power of the SRS of the Pcell has the higher priority than that of the SRS of the Scell.
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公开(公告)号:US10349415B2
公开(公告)日:2019-07-09
申请号:US15372563
申请日:2016-12-08
申请人: Sun Patent Trust
发明人: Shinsuke Takaoka , Takashi Iwai
IPC分类号: H04W72/04 , H04W52/36 , H04W52/26 , H04W52/24 , H04L5/00 , H04W52/16 , H04W52/14 , H04W52/34 , H04L1/00 , H04L1/16
摘要: Provided is an integrated circuit that calculates a power headroom (PHR) and that can preclude the recognition mismatch in which the reference formats of different UL grants are recognized between a wireless communication terminal apparatus and a wireless communication base station apparatus. For the PHR calculation of a PUSCH in a CC in which no UL grant is present, a UL grant, which was used for calculating the PHR in another CC having the same subframe number as the PUSCH, is used. For example, as to a subframe number=#1, the UL grant of CC #0 is used for calculating the PHR of CC #2 in which no UL grant is present.
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公开(公告)号:US10334622B2
公开(公告)日:2019-06-25
申请号:US15819149
申请日:2017-11-21
申请人: Sun Patent Trust
发明人: Atsushi Sumasu , Shozo Okasaka , Shinsuke Takaoka , Seigo Nakao , Daichi Imamura
摘要: A base station able to maintain backward compatibility with an LTE mobile station while minimizing the amount of increase in uplink scheduling information reception and demodulation/decoding processing in independent uplink/downlink cell data transmission. A wireless communication system includes a cell #1, a cell #2, and an LTE-A mobile station, and supports independent uplink/downlink cell data transmission. The base station of the cell #2 arranges a PDCCH+, which includes uplink scheduling information from the LTE-A mobile station to the base station of the cell #2, in a downlink data region in the downlink connection of the base station of the cell #1.
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公开(公告)号:US10313988B2
公开(公告)日:2019-06-04
申请号:US16019336
申请日:2018-06-26
申请人: Sun Patent Trust
摘要: Provided are a wireless communication terminal device and a power allocation method, wherein transmission channel quality information, regarding a Pcell having a high probability that UCI is multiplied therein, can be accurately estimated by an SRS having high priority in power allocation, and an eNB can instruct appropriate transmission power to an UL channel which transmits the subsequent UCI. A power scaling detection unit detects whether or not a total transmission power value of the UL channels transmitted by the plurality of CC exceeds the maximum transmission power specific to the UE. When a plurality of SRS are simultaneously transmitted using a Pcell and a Scell, and power scaling occurs, a power scaling control unit performs power allocation so that transmission power of the SRS of the Pcell has the higher priority than that of the SRS of the Scell.
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公开(公告)号:US10051583B2
公开(公告)日:2018-08-14
申请号:US15860381
申请日:2018-01-02
申请人: Sun Patent Trust
摘要: Provided are a wireless communication terminal device and a power allocation method, wherein transmission channel quality information, regarding a Pcell having a high probability that UCI is multiplied therein, can be accurately estimated by an SRS having high priority in power allocation, and an eNB can instruct appropriate transmission power to an UL channel which transmits the subsequent UCI. A power scaling detection unit detects whether or not a total transmission power value of the UL channels transmitted by the plurality of CC exceeds the maximum transmission power specific to the UE. When a plurality of SRS are simultaneously transmitted using a Pcell and a Scell, and power scaling occurs, a power scaling control unit performs power allocation so that transmission power of the SRS of the Pcell has the higher priority than that of the SRS of the Scell.
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公开(公告)号:US10015794B2
公开(公告)日:2018-07-03
申请号:US15588247
申请日:2017-05-05
申请人: Sun Patent Trust
CPC分类号: H04W72/0453 , H04B7/0456 , H04J13/0059 , H04L1/0003 , H04L1/0009 , H04L5/0007 , H04L5/0021 , H04L5/0023 , H04L5/0041 , H04L5/0046 , H04L5/006 , H04L27/0008 , H04L27/2636
摘要: A wireless communication terminal apparatus wherein even when a SC-FDMA signal is divided into a plurality of clusters and the plurality of clusters are then mapped to respective discontinuous frequency bands (when C-SC-FDMA is used), the improvement effect of system throughput can be maintained, while the user throughput can be improved. In the apparatus, a DFT unit (210) subjects a symbol sequence of time domain to a DFT process, thereby generating signals of frequency domain. A setting unit (211) divides the signals input from the DFT unit (210) into a plurality of clusters according to a cluster pattern that is in accordance with an MCS set, an encoding size, or the number of Ranks occurring during MIMO transmissions, which is indicated in those signals input, and then maps the plurality of clusters to the respective ones of a plurality of discontinuous frequency resources, thereby setting a constellation of the plurality of clusters in the frequency domain.
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8.
公开(公告)号:US09775155B2
公开(公告)日:2017-09-26
申请号:US15337985
申请日:2016-10-28
申请人: Sun Patent Trust
CPC分类号: H04W72/0453 , G06F17/141 , H04J1/00 , H04J4/005 , H04J11/00 , H04L5/0041 , H04L27/2602 , H04L27/2628 , H04L27/2636 , H04W88/08 , Y10S370/916
摘要: A communication apparatus includes a receiver, a combiner, and a transformer. The receiver receives signals mapped on plural frequency bands. A size of at least one of the frequency bands is a multiple of a product of two or more powers of prime numbers, which are integer numbers greater than 1 and are different from each other. An exponent for at least one of the prime numbers is an integer greater than 1. The combiner combines the received signals into a combined signal. The transformer transforms the combined signal in a frequency domain into a symbol sequence in a time domain with an inverse discrete Fourier transform (IDFT) having a size that is a product of powers of plural values. The values are integer numbers greater than 1 and are different from each other. An exponent for at least one of the values is an integer greater than 1.
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公开(公告)号:US12028814B2
公开(公告)日:2024-07-02
申请号:US18354547
申请日:2023-07-18
申请人: Sun Patent Trust
CPC分类号: H04W52/241 , H04L5/0048 , H04L5/0051 , H04W52/146 , H04W52/16 , H04W52/325 , H04W72/0473
摘要: Disclosed is a wireless communication device that can suppress an increase in power consumption of a terminal while preventing the degradation of SINR measurement precision resulting from TPC errors in a base station. A terminal controls the transmission power of a second signal by adding an offset to the transmission power of a first signal; an offset-setting unit sets an offset correction value in response to a transmission time gap between a third signal transmitted the previous time and the second signal transmitted this time; and a transmission power control unit controls the transmission power of the second signal using the correction value.
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10.
公开(公告)号:US20240179037A1
公开(公告)日:2024-05-30
申请号:US18433076
申请日:2024-02-05
申请人: Sun Patent Trust
IPC分类号: H04L27/26 , G06F17/14 , H04J1/00 , H04J4/00 , H04J11/00 , H04L5/00 , H04W72/0453 , H04W88/08
CPC分类号: H04L27/2602 , G06F17/141 , H04J1/00 , H04J4/005 , H04J11/00 , H04L5/0041 , H04L27/26 , H04L27/2636 , H04W72/0453 , H04W88/08 , Y10S370/916
摘要: A communication system includes a communication apparatus and a base station. The communication apparatus includes a Discrete Fourier Transform (DFT) transformer which transforms a time-domain signal into a frequency-domain signal with a DFT size that is a product of powers of a plurality of values; a mapper which maps the frequency-domain signal on a plurality of frequency bands, each frequency band being located at a position separate from position(s) of other(s) of the plurality of frequency bands; and a signal generator which generates a single carrier-frequency division multiple access (SC-FDMA) time-domain signal from the mapped signal. The base station includes a receiver which receives the SC-FDMA time-domain signal; a combiner which generates the frequency-domain signal from the SC-FDMA time-domain signal; and a transformer which transforms the frequency-domain signal into the time-domain signal with an inverse Discrete Fourier Transform (IDFT) having the DFT size.
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