WO2011063569A1 - Increasing capacity in wireless communications - Google Patents
Increasing capacity in wireless communications Download PDFInfo
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- WO2011063569A1 WO2011063569A1 PCT/CN2009/075179 CN2009075179W WO2011063569A1 WO 2011063569 A1 WO2011063569 A1 WO 2011063569A1 CN 2009075179 W CN2009075179 W CN 2009075179W WO 2011063569 A1 WO2011063569 A1 WO 2011063569A1
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/23—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using convolutional codes, e.g. unit memory codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/09—Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/23—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using convolutional codes, e.g. unit memory codes
- H03M13/235—Encoding of convolutional codes, e.g. methods or arrangements for parallel or block-wise encoding
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
- H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
- H03M13/3905—Maximum a posteriori probability [MAP] decoding or approximations thereof based on trellis or lattice decoding, e.g. forward-backward algorithm, log-MAP decoding, max-log-MAP decoding
- H03M13/3938—Tail-biting
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
- H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
- H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
- H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
- H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
- H03M13/413—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors tail biting Viterbi decoding
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/63—Joint error correction and other techniques
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/63—Joint error correction and other techniques
- H03M13/6306—Error control coding in combination with Automatic Repeat reQuest [ARQ] and diversity transmission, e.g. coding schemes for the multiple transmission of the same information or the transmission of incremental redundancy
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/65—Purpose and implementation aspects
- H03M13/6522—Intended application, e.g. transmission or communication standard
- H03M13/6525—3GPP LTE including E-UTRA
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/65—Purpose and implementation aspects
- H03M13/6522—Intended application, e.g. transmission or communication standard
- H03M13/653—3GPP HSDPA, e.g. HS-SCCH or DS-DSCH related
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/65—Purpose and implementation aspects
- H03M13/6522—Intended application, e.g. transmission or communication standard
- H03M13/6558—3GPP2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0052—Realisations of complexity reduction techniques, e.g. pipelining or use of look-up tables
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1887—Scheduling and prioritising arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
- H04L5/0046—Determination of how many bits are transmitted on different sub-channels
Definitions
- Rate matching is then performed on the coded bits in accordance with a rate- matching attribute assigned by higher signaling layers and specified by the transport format at block 218.
- bits are repeated or punctured (i.e., deleted) such that the number of bits to be transmitted matches the number of available bit positions.
- unused bit positions are filled with discontinuous transmission (DTX) bits at block 220. The DTX bits indicate when a transmission should be turned off and are not actually transmitted.
- DTX discontinuous transmission
- FIG 2D is a diagram of signal processing that may be performed at a UE for downlink data reception, in accordance with the W-CDMA standard.
- W-CDMA Wideband Code Division Multiple Access
- n may be incremented at block 525, and reception of symbols for the next slot may proceed at block 510.
- decoding attempts may be performed on a per-transport channel basis for one or more transport channels, as described with reference to blocks 530-560.
- One of ordinary skill in the art will appreciate that the techniques may be applied to any configuration of one or more transport channels.
- the receiver may attempt early decoding on each of frames 1 and 2 generated according to the scheme shown in FIG 8.
- the likelihood of successfully decoding a full two-frame TTI based on receiving only a first frame, e.g., after receiving 15 slots may be quite low.
- Further disclosed herein are techniques to increase the likelihood of successfully decoding a full TTI at the earliest possible time.
- tail bits associated with a conventional convolutional code less data needs to be transmitted over the channel in the case of a tail-biting convolutional code, thereby generating less interference to other users.
- repeated early decoding attempts of a tail-biting convolutional code may take advantage of the fact that the ending state of a previous early decoding attempt is expected to be equal to the initial state of a subsequent early decoding attempt of the same transport channel, thereby potentially saving computational resources.
- the table in FIG 12 may be maintained at an RNC, and provided to Node B's.
- each Node B can maintain a separate table, and also respond to requests from other Node B's to, e.g., adjust the early decoding priority of the UE's it services.
- the Node B 110, 111, 114 allows several user equipment devices 123-127 to transmit at a certain power level at the same time. These grants are assigned to users by using a fast scheduling algorithm that allocates the resources on a short-term basis (every tens of ms).
- the rapid scheduling of HSUPA is well suited to the bursty nature of packet data. During periods of high activity, a user may get a larger percentage of the available resources, while getting little or no bandwidth during periods of low activity.
- FIG l lC is detailed herein below, wherein specifically, a Node B 110,
- DSP Digital Signal Processor
- ASIC Application Specific Integrated Circuit
- FPGA Field Programmable Gate Array
- a general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine.
- a software module may reside in Random Access Memory (RAM), flash memory, Read Only Memory (ROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
- An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium.
- the storage medium may be integral to the processor.
- the processor and the storage medium may reside in an ASIC.
- the ASIC may reside in a user terminal.
- the processor and the storage medium may reside as discrete components in a user terminal.
- the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
- Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
- a storage media may be any available media that can be accessed by a computer.
- such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09851582T ES2708959T3 (en) | 2009-11-27 | 2009-11-27 | Greater capacity in wireless communications |
US13/504,699 US9673837B2 (en) | 2009-11-27 | 2009-11-27 | Increasing capacity in wireless communications |
CN200980162609.6A CN102668628B (en) | 2009-11-27 | 2009-11-27 | Method and device for increasing capacity in wireless communications |
BR112012012632-6A BR112012012632B1 (en) | 2009-11-27 | 2009-11-27 | METHOD AND EQUIPMENT TO INCREASE TRANSMISSION CAPACITY IN WIRELESS COMMUNICATIONS, AND MEMORY READABLE BY COMPUTER |
KR1020127016760A KR101363016B1 (en) | 2009-11-27 | 2009-11-27 | Increasing capacity in wireless communications |
JP2012540254A JP2013512593A (en) | 2009-11-27 | 2009-11-27 | Capacity increase in wireless communication |
EP09851582.8A EP2505017B1 (en) | 2009-11-27 | 2009-11-27 | Increasing capacity in wireless communications |
PCT/CN2009/075179 WO2011063569A1 (en) | 2009-11-27 | 2009-11-27 | Increasing capacity in wireless communications |
TW099105984A TW201129167A (en) | 2009-11-27 | 2010-03-02 | Increasing capacity in wireless communications |
US15/593,075 US10790861B2 (en) | 2009-11-27 | 2017-05-11 | Increasing capacity in wireless communications |
Applications Claiming Priority (1)
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PCT/CN2009/075179 WO2011063569A1 (en) | 2009-11-27 | 2009-11-27 | Increasing capacity in wireless communications |
Related Child Applications (2)
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US13/504,699 A-371-Of-International US9673837B2 (en) | 2009-11-27 | 2009-11-27 | Increasing capacity in wireless communications |
US15/593,075 Continuation US10790861B2 (en) | 2009-11-27 | 2017-05-11 | Increasing capacity in wireless communications |
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WO2011063569A1 true WO2011063569A1 (en) | 2011-06-03 |
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PCT/CN2009/075179 WO2011063569A1 (en) | 2009-11-27 | 2009-11-27 | Increasing capacity in wireless communications |
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Country | Link |
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US (2) | US9673837B2 (en) |
EP (1) | EP2505017B1 (en) |
JP (1) | JP2013512593A (en) |
KR (1) | KR101363016B1 (en) |
CN (1) | CN102668628B (en) |
BR (1) | BR112012012632B1 (en) |
ES (1) | ES2708959T3 (en) |
TW (1) | TW201129167A (en) |
WO (1) | WO2011063569A1 (en) |
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Also Published As
Publication number | Publication date |
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TW201129167A (en) | 2011-08-16 |
ES2708959T3 (en) | 2019-04-12 |
BR112012012632A2 (en) | 2017-12-12 |
US10790861B2 (en) | 2020-09-29 |
KR101363016B1 (en) | 2014-02-13 |
US20120243515A1 (en) | 2012-09-27 |
US20170251473A1 (en) | 2017-08-31 |
EP2505017A1 (en) | 2012-10-03 |
EP2505017B1 (en) | 2018-10-31 |
CN102668628B (en) | 2015-02-11 |
JP2013512593A (en) | 2013-04-11 |
KR20120089351A (en) | 2012-08-09 |
BR112012012632B1 (en) | 2020-12-15 |
CN102668628A (en) | 2012-09-12 |
US9673837B2 (en) | 2017-06-06 |
EP2505017A4 (en) | 2014-09-03 |
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