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公开(公告)号：US10903938B2
公开(公告)日：2021-01-26
申请号：US16105022
申请日：2018-08-20
Applicant: Mediatek Inc.
Inventor： Wei-De Wu , Chia-Wei Tai
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and wireless equipment are provided. The wireless equipment obtains an integer E and an integer N. E encoded bits are to be selected for transmission from N encoded bits output from an encoder. The wireless equipment determines F inputs from N inputs of the encoder based on E and N. The F inputs do not include S inputs that correspond to S outputs of the encoder generating encoded bits not to be transmitted. The wireless equipment sets the F inputs to a predetermined value.
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公开(公告)号：US20180226995A1
公开(公告)日：2018-08-09
申请号：US15889204
申请日：2018-02-06
Applicant: MEDIATEK INC.
Inventor： Wei-De Wu , Chia-Wei Tai
Abstract: Apparatus and methods are provided for polar code sub-block interleaving and bit selection. In one novel aspect, middle-part interlaced sub-block interleaving is provided for polar code interleaving. In one embodiment, the middle part of the polar code is interlaced and generates the interleaved polar code. In another embodiment, the lower part and the upper part are also sub-block interleaved with the middle-part interlaced method. In another novel, rate-dependent unified bit selection is provided. The bit selection is categorized into three operation categories of repetition, puncturing and the shortening. Each category follows unified bit selection rule with different categories differ only in the access scheme. In one embodiment, the circular buffer is used for bit selection.
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公开(公告)号：US11805532B2
公开(公告)日：2023-10-31
申请号：US17157108
申请日：2021-01-25
Applicant: MEDIATEK INC.
Inventor： Wei-De Wu , Chia-Wei Tai , Yen-Cheng Liu
CPC classification number: H04W72/30 , H04H60/00 , H04L1/007 , H04L1/0041 , H04L1/0057 , H04L1/0058 , H04L25/00 , H04L27/26 , H04W48/10
Abstract: Aspects of the disclosure provide a method and device performing input bit allocation that includes receiving broadcasting information bits, generating timing related bits for the broadcasting information bits, and selecting a portion of the generated timing related bits. The method and device can further include allocating each of the selected timing related bits to selected input bits of an encoder, so that each of the selected timing related bits is allocated to an input bit of the encoder corresponding to an available bit channel of the encoder where the selected inputs bits of the encoder correspond to encoded bits that are located in a front portion of the encoded bits.
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公开(公告)号：US11528035B2
公开(公告)日：2022-12-13
申请号：US17343618
申请日：2021-06-09
Applicant: MediaTek Inc.
Inventor： Tun-Ping Huang , Mao-Ching Chiu , Wei-De Wu , Chia-Wei Tai , Tien-Yu Lin
Abstract: Examples pertaining to bit selection for polar coding incremental-redundancy hybrid automatic repeat request (IR-HARQ) are described. An apparatus (e.g., UE) generates a re-transmission polar code block (CB) in a polar incremental redundancy HARQ (IR-HARQ) procedure. The apparatus then transmits the re-transmission polar CB as a re-transmission of an initial transmission of an initial polar code carrying a plurality of information bits. In generating the re-transmission polar CB, the apparatus selects one or more re-transmission information bits from the plurality of information bits.
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公开(公告)号：US11005602B2
公开(公告)日：2021-05-11
申请号：US16149085
申请日：2018-10-01
Applicant: MediaTek Inc.
Inventor： Wei-De Wu , Timothy Perrin Fisher-Jeffes , Yen-Shuo Chang , Chia-Wei Tai , Hsien-Kai Hsin , Pei-Kai Liao
Abstract: Techniques and examples of hybrid automatic repeat request (HARQ) buffer size design for communication systems are described. A user equipment (UE) communicates with a serving cell of a wireless network using a HARQ mechanism, with the communicating involving: (a) determining, by the processor, a respective size of each buffer of a plurality of buffers corresponding to a plurality of HARQ processes on a per-HARQ process basis; and (b) storing, by the processor, respective information in each buffer of the plurality of buffers for a corresponding HARQ process among the plurality of HARQ processes.
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Patent Agency Ranking
公开(公告)号：US10979081B2
公开(公告)日：2021-04-13
申请号：US16550485
申请日：2019-08-26
Applicant: MEDIATEK INC.
Inventor： Wei-De Wu , Chia-Wei Tai
Abstract: Apparatus and methods are provided for polar code sub-block interleaving and bit selection. In one novel aspect, middle-part interlaced sub-block interleaving is provided for polar code interleaving. In one embodiment, the middle part of the polar code is interlaced and generates the interleaved polar code. In another embodiment, the lower part and the upper part are also sub-block interleaved with the middle-part interlaced method. In another novel, rate-dependent unified bit selection is provided. The bit selection is categorized into three operation categories of repetition, puncturing and the shortening. Each category follows unified bit selection rule with different categories differ only in the access scheme. In one embodiment, the circular buffer is used for bit selection.
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公开(公告)号：US10925032B2
公开(公告)日：2021-02-16
申请号：US16149914
申请日：2018-10-02
Applicant: MEDIATEK INC.
Inventor： Wei-De Wu , Chia-Wei Tai , Yen-Cheng Liu
Abstract: Aspects of the disclosure provide a method and device performing input bit allocation that includes receiving broadcasting information bits, generating timing related bits for the broadcasting information bits, and selecting a portion of the generated timing related bits. The method and device can further include allocating each of the selected timing related bits to selected input bits of an encoder, so that each of the selected timing related bits is allocated to an input bit of the encoder corresponding to an available bit channel of the encoder where the selected inputs bits of the encoder correspond to encoded bits that are located in a front portion of the encoded bits.
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18.发明申请公开(公告)号：US20200083906A1
公开(公告)日：2020-03-12
申请号：US16125751
申请日：2018-09-09
Applicant: MEDIATEK INC.
Inventor： Wei-Yeu Chen , Tien-Shin Ho , Shao-Ping Hung , Chia-Wei Tai , Tien-Yu Lin
Abstract: A method for performing polar decoding with aid of notation transformation and associated polar decoder are provided. The method includes: transforming input signals from a 2's complement notation to a signed magnitude notation to generate transformed input signals, wherein during the polar decoding, a plurality of first sub-operations and a plurality of second sub-operations are performed to generate decoding results of the transformed input signals; performing a first sign processing to generate a sign result of a first sub-operation within the plurality of first sub-operations; performing a first magnitude processing to generate a magnitude result of the first sub-operation within the plurality of first sub-operations; performing a second sign processing to generate a sign result of a second sub-operation within the plurality of second sub-operations; and performing a second magnitude processing to generate a magnitude result of the second sub-operation within the plurality of second sub-operations.
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公开(公告)号：US20200014405A1
公开(公告)日：2020-01-09
申请号：US16550485
申请日：2019-08-26
Applicant: MEDIATEK INC.
Inventor： Wei-De Wu , Chia-Wei Tai
Abstract: Apparatus and methods are provided for polar code sub-block interleaving and bit selection. In one novel aspect, middle-part interlaced sub-block interleaving is provided for polar code interleaving. In one embodiment, the middle part of the polar code is interlaced and generates the interleaved polar code. In another embodiment, the lower part and the upper part are also sub-block interleaved with the middle-part interlaced method. In another novel, rate-dependent unified bit selection is provided. The bit selection is categorized into three operation categories of repetition, puncturing and the shortening. Each category follows unified bit selection rule with different categories differ only in the access scheme. In one embodiment, the circular buffer is used for bit selection.
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公开(公告)号：US10432234B2
公开(公告)日：2019-10-01
申请号：US15653048
申请日：2017-07-18
Applicant: MEDIATEK INC.
Inventor： Wei-De Wu , Chia-Wei Tai , Mao-Ching Chiu
Abstract: Aspects of the disclosure provide polar code rate matching methods. A first method can include determining whether to puncture or shorten a mother polar code according to a mother code rate and/or a rate matched code rate, and selecting K positions in the sequence of N input bits for input of K information bits to a polar encoder according to an offline prepared index list ordered according to the reliabilities of respective synthesized channels. Frozen input bits caused by puncturing or shortening are skipped during the selection. A second method includes generating a mother polar code, rearranging code bits of the mother polar code to form a rearranged sequence that can be stored in a circular buffer, and performing, in a unified way, one of puncturing, shortening, or repetition on the rearranged sequence to obtain a rate matched code.
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