公开(公告)号：WO2009115042A1

公开(公告)日：2009-09-24

申请号：PCT/CN2009/070861

申请日：2009-03-18

Applicant: 大唐移动通信设备有限公司 ,  曹晏波 ,  李洪强 ,  王鑫 ,  乔元新 ,  王映民 ,  孙建勋 ,  董育新

Inventor： 曹晏波 ,  李洪强 ,  王鑫 ,  乔元新 ,  王映民 ,  孙建勋 ,  董育新

IPC: H04L1/00

CPC classification number: H04L1/005 ,  H04L1/0048

公开(公告)号：WO2009070983A1

公开(公告)日：2009-06-11

申请号：PCT/CN2008/001932

申请日：2008-11-26

Applicant: 大唐移动通信设备有限公司 ,  孙韶辉 ,  于洋 ,  王映民 ,  谢永斌

Inventor： 孙韶辉 ,  于洋 ,  王映民 ,  谢永斌

IPC: H04L27/32

CPC classification number: H04L5/0021 ,  H04L5/0019 ,  H04L5/0044

Abstract: Method for signal generation in broadband wireless communications, comprises: A. modulating, segmenting and serial-parallel converting the signal data to be transmitted, then computing DFT of the serial-parallel converted data so as to transfer them to frequency domain; B. performing unit block modulating processing and block repeat modulating processing on the frequency domain data, then mapping the unit blocks to assigned time-frequency positions; C. computing IFFT of the mapped unit blocks, then adding them to the cycle prefix, thus the radon sequences in time domain are generated. Apparatus for signal generation, Method and system for message transmission in broadband wireless communications are also disclosed. The problem of resource allocation and scheduling, and problem of interference coordination and control are solved, the throughput and performance of communication system are greatly improved.

公开(公告)号：WO2009067914A1

公开(公告)日：2009-06-04

申请号：PCT/CN2008/072997

申请日：2008-11-10

Applicant: 大唐移动通信设备有限公司 ,  索士强 ,  王映民 ,  李文刚

Inventor： 索士强 ,  王映民 ,  李文刚

IPC: H04B7/02 ,  H04W16/28

CPC classification number: H04B7/12 ,  H04B7/0617 ,  H04B7/068 ,  H04B7/10 ,  H04L5/0044 ,  H04L5/0048

Abstract: A data transmission method is provided which includes the following steps. The system maps the modulated symbols including the data to be transmitted and the reference signals, which are allocated to antenna ports of the appointed type, to resource elements, maps the modulated symbols which are mapped to the resource elements to antenna ports, generates the OFDM signal from the signal mapped to antenna ports, and then transmits the OFDM signal by physical antennas. The invention also discloses a data transmission apparatus. The data transmission method and the apparatus could add respective beam-forming weights to the user's modulated symbols simultaneously and realize user's beam-forming operation by founding the mapping rules between physical antenna elements and antenna ports. Thus the system could support the beam-forming transmission in the frequency domain flexibly, and the flexibility of data transmission will be greatly enhanced.

公开(公告)号：WO2008061442A1

公开(公告)日：2008-05-29

申请号：PCT/CN2007/003257

申请日：2007-11-19

Applicant: 大唐移动通信设备有限公司 ,  王映民 ,  丁昱

Inventor： 王映民 ,  丁昱

IPC: H04L29/08

CPC classification number: H04B7/022 ,  H04L69/24 ,  H04W72/005

Abstract: A method and system for transmitting the broadcast/multicast service can solve the problem that the large range coverage of the broadcast/multicast service and the macro-diversity combination of multi-cells can not be implemented efficiently based on the frame structure of the existing Time Division-Synchronous Code Division Multiple Access TD-SCDMA system in prior art, the method includes: mapping the channel estimation code and the data symbol of the broadcast/multicast service into the resource unit, wherein the channel estimation code is mapped in front of the data symbol in the signal frames of all service slots or the broadcast/multicast service slots; and transmitting the resource unit. Using the application, the transmission efficiency and performance can be improved, and the multi-cells combination of broadcast/multicast service and deployment of multi-cells mechanism broadcast/multicast service can be implemented efficiently.

公开(公告)号：WO2008061437A1

公开(公告)日：2008-05-29

申请号：PCT/CN2007/003227

申请日：2007-11-15

Applicant: 大唐移动通信设备有限公司 ,  王映民 ,  丁昱 ,  杨家军 ,  毛磊 ,  杨君云

Inventor： 王映民 ,  丁昱 ,  杨家军 ,  毛磊 ,  杨君云

IPC: H04Q7/38

CPC classification number: H04W72/005 ,  H04W88/12

Abstract: A method for transmitting broadcast service data over a single frequency network is disclosed, the single frequency network including a radio network controller and at least two base stations, the cell area of each base station including at least two sectors, the method comprising: the radio network controller transmitting the broadcast service data and the first transmitting time to the base station; said base station transmitting the broadcast services data to each sector of its own after reaching said first transmitting time, and the transmitting time at which the broadcast service data is transmitted to the adjacent sectors with a co-site address being different. At the same time, the present invention discloses a system and base station for transmitting broadcast service data over a single frequency network. With the present solution, in prior arts, the phenomena of the received single falling quickly that occurs in the adjacent sectors edge zone of the same cell area in a single frequency network in prior arts is eliminated, therefore the signal receiving performance is improved.

公开(公告)号：WO2008019600A1

公开(公告)日：2008-02-21

申请号：PCT/CN2007/002452

申请日：2007-08-14

Applicant: 大唐移动通信设备有限公司 ,  索士强 ,  王映民 ,  熊琴玲

Inventor： 索士强 ,  王映民 ,  熊琴玲

IPC: H04J13/00

CPC classification number: H04L5/1484 ,  H04L5/0023 ,  H04L5/006 ,  H04L25/03343 ,  H04L27/261 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: A method for realizing frequency domain scheduling in the time division duplex system, includes: the first device sends the none pre-encoded reference symbols to the second device, the second device acquires the impulse response matrix of the channel used by the first device when sending data according to the reference symbols and acquires the linear space domain pre-encoding matrix of the waiting physical resource blocks used by the first device when sending data, the second device acquires the channel quality indication of the waiting physical resource blocks according to the impulse response matrix and the linear space domain pre-encodingmatrix, and processes the frequency domain scheduling according to the channel quality indication. Using the method, not only can we resolve the problem of frequency domain scheduling being not processed with the channel detecting method of the prior art, but also resolve the contradiction of adopting frequency domain scheduling and linear space domain pre-encoding.

公开(公告)号：WO2007079680A1

公开(公告)日：2007-07-19

申请号：PCT/CN2007/000079

申请日：2007-01-09

Applicant: 上海原动力通信科技有限公司 ,  孙韶辉 ,  于洋 ,  王映民

Inventor： 孙韶辉 ,  于洋 ,  王映民

IPC: H04L7/02

CPC classification number: H04L27/2657 ,  H04L7/10 ,  H04L27/2675 ,  H04L27/2684

Abstract: A frequency offset correction method for wideband time division duplex cell communication system includes: receiving time domain sequences of the two pilot symbols having the scheduled interval in the time slot of transmitting broadcast channel; performing conjugate correlated operation between the two received pilot time domain sequences and the locally stored pilot time domain sequences corresponding to the pilot symbol; and performing the frequency offset correction according to the operation result. A method for cell first searching includes cell coarse synchronization , cell precise synchronization, cell coarse frequency offset correction and cell precise frequency offset correction, and the above frequency offset correction method is used to perform the cell precise frequency offset correction . The present invention increases the precision of frequency offset estimate in the user terminal, reduces the realization complexity at the same time, and provides an effective solution for realizing downlink synchronization and frequency offset correction by wideband time division duplex cell communication system.

公开(公告)号：WO2007003127A1

公开(公告)日：2007-01-11

申请号：PCT/CN2006/001523

申请日：2006-06-30

Applicant: 上海原动力通信科技有限公司 ,  孙韶辉 ,  王映民 ,  杨贵亮

Inventor： 孙韶辉 ,  王映民 ,  杨贵亮

IPC: H04L27/26

CPC classification number: H04L27/2601 ,  H04L1/0013 ,  H04L1/0041 ,  H04L1/0071 ,  H04L1/0075 ,  H04L1/1812 ,  H04L1/1893

Abstract: Three methods are used for the multicarrier HSDPA packet data transmission channel coding. The first channel coding process scheme includes: firstly divide the data into N groups (S210); perform the CRC attachment, the code block segmentation, the channel coding and the rate matching to each group of data separately (S220); after N groups of data after the rate matching are consolidated to perform scrambling and interleaving, the data is divided into N groups once again and N groups of data are transmitted after the constellation re-arrangement for QAM and the mapping into the physical channel corresponding to the carrier (S230, S240). The second channel coding process scheme includes: divide the data to be transmitted in the HS-DSCH channel this time into some groups (S510); and transmit each channel of data through the carrier physical channel after coding it as the single carrier HSDPA data (S520). The third channel coding process scheme includes: N carrier channels are transmitted to the physical layer to process as a whole from the CRC attachment processing to the constellation re-arrangement for QAM (S710); divide the data into groups after the constellation re-arrangement for QAM, and map them to corresponding carrier channels to transmit (S720).

公开(公告)号：WO2007003122A1

公开(公告)日：2007-01-11

申请号：PCT/CN2006/001505

申请日：2006-06-29

Applicant: 上海原动力通信科技有限公司 ,  杨贵亮 ,  孙韶辉 ,  王映民

Inventor： 杨贵亮 ,  孙韶辉 ,  王映民

IPC: H04Q7/38

CPC classification number: H04W28/20 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/085

Abstract: A multi-carrier HSDPA downlink traffic channel resource-allocating method. First selecting carrier that condition is preference; determining whether the carrier satisfies downlink traffic channel resource-allocating requirement, if satisfies, then allocating resource that satisfied the downlink traffic channel on the carrier; otherwise, allocating the usable resource of the carrier to the downlink traffic channel, and selecting the preference carrier in the other carriers to perform resource allocation according to the remain requirement of the downlink traffic channel. The present invention provides a downlink traffic channel allocating method be the same with multi-carrier HSDPA packet data transmitting according to the transmission character of the existing HSDPA multi-carrier. The present invention solves the problem that single carrier HSDPA only consider downlink traffic channel of the single carrier so that don't satisfy the downlink traffic channel resource-allocating of multi-carrier HSDPA.

公开(公告)号：WO2009062395A1

公开(公告)日：2009-05-22

申请号：PCT/CN2008/001823

申请日：2008-10-30

Applicant: 大唐移动通信设备有限公司 ,  索士强 ,  潘学明 ,  王映民 ,  孙韶辉 ,  谢永斌

Inventor： 索士强 ,  潘学明 ,  王映民 ,  孙韶辉 ,  谢永斌

IPC: H04W16/14

CPC classification number: H04W56/002 ,  H04W56/0075 ,  H04W72/0446 ,  H04W92/24

Abstract: A method for determining data transmission offsets comprises synchronization matching a first time division duplex TDD system with a second TDD system (a500); determining a transmission timing advance of the user terminal, in the establishing processing of the uplink synchronization of the second TDD system, according to the deviation between the random access time and the expected time of the user terminal (a501); determining the offsets of the time slots of the second TDD system according to the time difference of the time slots of the first TDD system and the second TDD system(a502); acquiring the data transmission offsets of the time slots by adding the determined time slot offsets and the transmission timing advance(a503). A system and base station for determining the data transmission offsets are provided. The present invention solves the problem of the interference between two TDD systems that are co-located in adjacent channel frequency.