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US20140362760A1 - Method and apparatus for providing multi-rate broadcast services - Google Patents

Method and apparatus for providing multi-rate broadcast services Download PDF

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Publication number
US20140362760A1
US20140362760A1 US14/470,310 US201414470310A US2014362760A1 US 20140362760 A1 US20140362760 A1 US 20140362760A1 US 201414470310 A US201414470310 A US 201414470310A US 2014362760 A1 US2014362760 A1 US 2014362760A1
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information
additional information
rate
common
wtrus
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Abandoned
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US14/470,310
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Jin Wang
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InterDigital Technology Corp
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InterDigital Technology Corp
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Priority to US14/470,310 priority Critical patent/US20140362760A1/en
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Abandoned legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/322—Power control of broadcast channels
    • H04W72/005—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H04W52/267—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the information rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/38—TPC being performed in particular situations
    • H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment

Definitions

  • the present invention is related to a wireless communication system. More particularly, the present invention is related to a method and apparatus for providing multi-rate broadcast services.
  • Current cellular broadcast services provided by a base station serve a group of users within a coverage area of the base station.
  • a base station transmits the same information to all, or a group of, users.
  • the base station limits the data rate of the broadcast service to a worst channel condition or a cell boundary.
  • WTRU wireless transmit/receive unit
  • the present invention is related to a method and apparatus for providing multi-rate broadcast services in a wireless communication system.
  • the present invention takes advantage of the higher capacity of better channels by providing a certain data rate common to all users, while sending additional information to users with better channel conditions.
  • a base station transmits a broadcast message including common information at a basic rate and additional information at a rate higher than the basic rate.
  • the basic rate is set to guarantee successful receipt by all WTRUs in a coverage area of the base station and the rate for the additional information is set such that only certain WTRUs with a channel condition above a threshold may decode the additional information successfully.
  • a maximum allowable transmission power for the broadcast services of the base station is allocated between the common information and the additional information.
  • the WTRU decodes received signals to recover the common information and subtracts the common information from the received signals to decode the additional information if the channel condition is better than the threshold.
  • the additional information may be information supplementing the common information, such as video information.
  • FIG. 1 is a block diagram of a wireless communication system for providing multi-rate broadcast services in accordance with the present invention.
  • FIG. 2 is a block diagram of an exemplary base station for providing dual-rate broadcast services in accordance with the present invention.
  • FIG. 3 is a block diagram of a WTRU for receiving dual-rate broadcast services in accordance with the present invention.
  • FIG. 4 is a flow diagram of a process for providing multi-rate broadcast services in accordance with the present invention.
  • WTRU includes but is not limited to a user equipment, a mobile station, a fixed or mobile subscriber unit, a pager, or any other type of device capable of operating in a wireless environment.
  • base station includes but is not limited to a Node-B, a site controller, an access point or any other type of interfacing device in a wireless environment.
  • the present invention is applicable to any wireless communication system including, but not limited to, CDMA2000, wideband code division multiple access (WCDMA)-frequency division duplex (FDD) and WCDMA-time division duplex (TDD).
  • CDMA2000 wideband code division multiple access
  • WCDMA wideband code division multiple access
  • FDD frequency division duplex
  • TDD time division duplex
  • the features of the present invention may be incorporated into an integrated circuit (IC) or be configured in a circuit comprising a multitude of interconnecting components.
  • IC integrated circuit
  • FIG. 1 is a block diagram of a wireless communication system 100 for providing multi-rate broadcast services in accordance with the present invention.
  • the system 100 includes a base station 102 and a plurality of WTRUs 104 1 - 104 n distributed throughout the coverage area 112 of the base station 102 .
  • the base station 102 transmits a broadcast message including common information and additional information.
  • FIG. 1 depicts broadcasting of three information signals d 1 -d 3 as an example.
  • Each broadcast information is transmitted with a different data rate and/or transmission power, and therefore has a different coverage distance.
  • a data rate and a transmission power of the common information is set such that all WTRUs 104 1 - 104 n in the coverage area 112 of the base station 102 may successfully receive and decode the common information.
  • Other information is encoded with a higher data rate and therefore only certain WTRUs having a better channel condition may successively receive and decode the additional information.
  • the basic coverage area 112 includes enhanced coverage areas 114 , 116 for providing broadcast services with additional information.
  • WTRUs closer to the base station 102 such as WTRU 104 4
  • WTRUs farther away from the base station 102 such as WTRU 104 1
  • WTRU 104 1 can merely satisfy the signal-to-interference ratio (SIR) requirement for receiving the common information because its received SIR for additional information is less than the required SIR threshold.
  • SIR signal-to-interference ratio
  • WTRU 104 1 can only decode the common information based on its available channel conditions, and the additional information only acts as interference to WTRU 104 1 .
  • WTRU 104 4 can satisfy the target SIR requirement for the additional information, WTRU 104 4 can decode the additional information successfully and can achieve the enhanced quality broadcast services with additional information.
  • FIG. 2 is a block diagram of a base station 102 for providing dual-rate broadcast services in accordance with the present invention.
  • the base station 102 includes a common information encoder 202 , an additional information encoder 204 , a multiplexer 206 and a transmitter 208 .
  • FIG. 2 depicts a base station 102 for providing dual-rate broadcast services with only one additional information encoder as an example, and the base station 102 may include more than one additional information encoder for multi-rate broadcast services.
  • the base station 102 receives common information 201 and additional information 203 from information source (not shown).
  • the common information 201 is encoded by the common information encoder 202 and the additional information 203 is encoded by the additional information encoder 204 .
  • the encoded common information 205 and the encoded additional information 207 are multiplexed by the multiplexer 206 .
  • the multiplexed common information and additional information 209 is then transmitted by the transmitter 208 as a broadcast message 210 .
  • two or more quality of service levels are provided within one broadcast transmission and transmission power is allocated between the common information 201 and the additional information 203 .
  • FIG. 3 is a block diagram of a WTRU 104 for receiving dual-rate broadcast services in accordance with the present invention.
  • the WTRU 104 includes a receiver 302 , a common information decoder 304 , an additional information decoder 308 and a subtractor 306 .
  • FIG. 3 depicts a WTRU 104 for receiving dual-rate broadcast services with only one additional information decoder as an example, and the WTRU 104 may include more than one additional information decoder for receiving multi-rate broadcast services.
  • the receiver 302 receives signals 301 including a broadcast message transmitted by the base station 102 .
  • Received signals 303 are fed to the common information decoder 304 .
  • the common information decoder 304 decodes the received signals 303 to recover the common information 201 .
  • the common information 201 is then fed to the subtractor 306 .
  • the subtractor 306 subtracts the common information 201 from the received signals 303 .
  • the subtractor output 307 is then fed to the additional information decoder 308 , which recovers the additional information 203 .
  • a WTRU 104 determines how much information the WTRU 104 can decode according to the channel conditions. When the channel conditions are poor, the WTRU 104 tries to demodulate only the common information. When the channel conditions are good, the WTRU 104 then decodes extra bits as well as the common information.
  • the additional information may be information supplementing the basic information.
  • the additional information may be video information while the basic information is data or voice information.
  • FIG. 4 is a flow diagram of a process 400 for providing multi-rate broadcast services in accordance with the present invention.
  • Common information and additional information are generated for providing broadcast services (step 402 ).
  • a base station 102 transmits a broadcast message including the common information 201 at a basic rate and the additional information 203 at a rate higher than the basic rate (step 404 ).
  • the basic rate is set to guarantee successful receipt by all WTRUs 104 in a coverage area of the base station 102 and the rate for the additional information 203 is set such that only certain WTRUs with channel conditions above a threshold may decode the additional information 203 successfully.
  • the WTRU 104 receives the transmitted signals (step 406 ).
  • the WTRU 104 decodes the common information (step 408 ). If the channel conditions are better than the threshold, the WTRU 104 subtracts the common information 201 from the received signals and decodes the additional information 203 (step 410 ).
  • the present invention takes advantage of the higher capacity of the better channels by providing a certain data rate common to all users, in the mean time sending additional information to users with better channel conditions.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

A method and apparatus for providing multi-rate broadcast services in a wireless communication system are disclosed. The present invention takes advantage of the higher capacity of better channels by providing a certain data rate common to all users, while sending additional information to users with better channel conditions. A base station transmits a broadcast message including common information at a basic rate and additional information at a rate higher than the basic rate. The basic rate guarantees successful receipt by all WTRUs in a coverage area and the rate for the additional information is set such that only certain WTRUs with a channel condition above a threshold may decode the additional information successfully. The WTRU decodes the common information and subtracts the common information from received signals to decode the additional information. The additional information may be information supplementing the common information, such as video information.

Description

    CROSS REFERENCE TO RELATED APPLICATION
  • This application is a continuation of U.S. application Ser. No. 11/321,664 filed Dec. 29, 2005, which claims the benefit of U.S. Provisional Application No. 60/667,808 filed Apr. 1, 2005, all of which are incorporated by reference as if fully set forth.
    • FIELD OF INVENTION
  • The present invention is related to a wireless communication system. More particularly, the present invention is related to a method and apparatus for providing multi-rate broadcast services.
    • BACKGROUND
  • Current cellular broadcast services provided by a base station serve a group of users within a coverage area of the base station. A base station transmits the same information to all, or a group of, users. In order to guarantee that all users located within the coverage area of the base station can receive the broadcast services with a required quality of service (QoS), the base station limits the data rate of the broadcast service to a worst channel condition or a cell boundary.
  • The conditions of wireless channel change over time and a wireless transmit/receive unit (WTRU) experiences dramatic variations in the channel conditions due to multipath fading, path losses via distance attenuation, shadowing by obstacles or interference. Not all users are subject to the worst channel conditions. Users may have a much better channel condition than the assumed worst case.
  • It is possible to serve a large number of subscribers by using a high transmission power, a high channel coding rate and transmit diversity scheme. However, by limiting the data rate to the worst channel condition, the current broadcast services underutilize better channel conditions with higher channel capacity.
    • SUMMARY
  • The present invention is related to a method and apparatus for providing multi-rate broadcast services in a wireless communication system. The present invention takes advantage of the higher capacity of better channels by providing a certain data rate common to all users, while sending additional information to users with better channel conditions. A base station transmits a broadcast message including common information at a basic rate and additional information at a rate higher than the basic rate.
  • The basic rate is set to guarantee successful receipt by all WTRUs in a coverage area of the base station and the rate for the additional information is set such that only certain WTRUs with a channel condition above a threshold may decode the additional information successfully. A maximum allowable transmission power for the broadcast services of the base station is allocated between the common information and the additional information.
  • The WTRU decodes received signals to recover the common information and subtracts the common information from the received signals to decode the additional information if the channel condition is better than the threshold. The additional information may be information supplementing the common information, such as video information.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a block diagram of a wireless communication system for providing multi-rate broadcast services in accordance with the present invention.
  • FIG. 2 is a block diagram of an exemplary base station for providing dual-rate broadcast services in accordance with the present invention.
  • FIG. 3 is a block diagram of a WTRU for receiving dual-rate broadcast services in accordance with the present invention.
  • FIG. 4 is a flow diagram of a process for providing multi-rate broadcast services in accordance with the present invention.
    •  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • Hereafter, the terminology “WTRU” includes but is not limited to a user equipment, a mobile station, a fixed or mobile subscriber unit, a pager, or any other type of device capable of operating in a wireless environment. When referred to hereafter, the terminology “base station” includes but is not limited to a Node-B, a site controller, an access point or any other type of interfacing device in a wireless environment.
  • The present invention is applicable to any wireless communication system including, but not limited to, CDMA2000, wideband code division multiple access (WCDMA)-frequency division duplex (FDD) and WCDMA-time division duplex (TDD).
  • The features of the present invention may be incorporated into an integrated circuit (IC) or be configured in a circuit comprising a multitude of interconnecting components.
  • FIG. 1 is a block diagram of a wireless communication system 100 for providing multi-rate broadcast services in accordance with the present invention. The system 100 includes a base station 102 and a plurality of WTRUs 104 1-104 n distributed throughout the coverage area 112 of the base station 102. In accordance with the present invention, the base station 102 transmits a broadcast message including common information and additional information. FIG. 1 depicts broadcasting of three information signals d1-d3 as an example.
  • Each broadcast information is transmitted with a different data rate and/or transmission power, and therefore has a different coverage distance. A data rate and a transmission power of the common information is set such that all WTRUs 104 1-104 n in the coverage area 112 of the base station 102 may successfully receive and decode the common information. Other information is encoded with a higher data rate and therefore only certain WTRUs having a better channel condition may successively receive and decode the additional information.
  • As shown in FIG. 1, the basic coverage area 112 includes enhanced coverage areas 114, 116 for providing broadcast services with additional information. WTRUs closer to the base station 102, such as WTRU 104 4, have less propagation attenuation, and thus have better channel conditions, while WTRUs farther away from the base station 102, such as WTRU 104 1, have much more link attenuation, and thus have worse channel conditions. WTRU 104 1 can merely satisfy the signal-to-interference ratio (SIR) requirement for receiving the common information because its received SIR for additional information is less than the required SIR threshold. Thus, WTRU 104 1 can only decode the common information based on its available channel conditions, and the additional information only acts as interference to WTRU 104 1. On the other hand, since WTRU 104 4 can satisfy the target SIR requirement for the additional information, WTRU 104 4 can decode the additional information successfully and can achieve the enhanced quality broadcast services with additional information.
  • FIG. 2 is a block diagram of a base station 102 for providing dual-rate broadcast services in accordance with the present invention. The base station 102 includes a common information encoder 202, an additional information encoder 204, a multiplexer 206 and a transmitter 208. It should be noted that FIG. 2 depicts a base station 102 for providing dual-rate broadcast services with only one additional information encoder as an example, and the base station 102 may include more than one additional information encoder for multi-rate broadcast services. The base station 102 receives common information 201 and additional information 203 from information source (not shown).
  • The common information 201 is encoded by the common information encoder 202 and the additional information 203 is encoded by the additional information encoder 204. The common information 201 and the additional information 203 are encoded at rates pair (R1, R2) with transmission powers P2=αP1 and P1=(1−α))Pb, respectively, where Pb is the maximum allowable transmission power for the broadcast services. The encoded common information 205 and the encoded additional information 207 are multiplexed by the multiplexer 206. The multiplexed common information and additional information 209 is then transmitted by the transmitter 208 as a broadcast message 210.
  • In accordance with the present invention, two or more quality of service levels are provided within one broadcast transmission and transmission power is allocated between the common information 201 and the additional information 203.
  • FIG. 3 is a block diagram of a WTRU 104 for receiving dual-rate broadcast services in accordance with the present invention. The WTRU 104 includes a receiver 302, a common information decoder 304, an additional information decoder 308 and a subtractor 306. It should be noted that FIG. 3 depicts a WTRU 104 for receiving dual-rate broadcast services with only one additional information decoder as an example, and the WTRU 104 may include more than one additional information decoder for receiving multi-rate broadcast services. The receiver 302 receives signals 301 including a broadcast message transmitted by the base station 102. Received signals 303 are fed to the common information decoder 304. The common information decoder 304 decodes the received signals 303 to recover the common information 201. The common information 201 is then fed to the subtractor 306. The subtractor 306 subtracts the common information 201 from the received signals 303. The subtractor output 307 is then fed to the additional information decoder 308, which recovers the additional information 203.
  • A WTRU 104 determines how much information the WTRU 104 can decode according to the channel conditions. When the channel conditions are poor, the WTRU 104 tries to demodulate only the common information. When the channel conditions are good, the WTRU 104 then decodes extra bits as well as the common information.
  • The additional information may be information supplementing the basic information. For example, the additional information may be video information while the basic information is data or voice information.
  • FIG. 4 is a flow diagram of a process 400 for providing multi-rate broadcast services in accordance with the present invention. Common information and additional information are generated for providing broadcast services (step 402). A base station 102 transmits a broadcast message including the common information 201 at a basic rate and the additional information 203 at a rate higher than the basic rate (step 404). The basic rate is set to guarantee successful receipt by all WTRUs 104 in a coverage area of the base station 102 and the rate for the additional information 203 is set such that only certain WTRUs with channel conditions above a threshold may decode the additional information 203 successfully.
  • The WTRU 104 receives the transmitted signals (step 406). The WTRU 104 decodes the common information (step 408). If the channel conditions are better than the threshold, the WTRU 104 subtracts the common information 201 from the received signals and decodes the additional information 203 (step 410).
  • The present invention takes advantage of the higher capacity of the better channels by providing a certain data rate common to all users, in the mean time sending additional information to users with better channel conditions.
  • Although the features and elements of the present invention are described in the preferred embodiments in particular combinations, each feature or element can be used alone without the other features and elements of the preferred embodiments or in various combinations with or without other features and elements of the present invention.

Claims (4)

What is claimed is:
1. A wireless transmit/receive unit (WTRU) comprising:
a receiver configured to receive a broadcast signal having a first part and a second part;
wherein the first part includes basic information and is received at a first data rate that is common to all wireless transmit/receive units (WTRUs) in a coverage area; and
wherein the second part includes additional information received at a higher data rate that only a subset of WTRUs in the coverage area are able to decode, wherein the WTRU is in the subset of WTRUs and wherein the subset of WTRUs have a channel condition above a threshold.
2. The WTRU of claim 1, further comprising:
at least one decoder configured to decode the common information and the additional information.
3. A method for use in a wireless transmit/receive unit (WTRU), the method comprising:
receiving a broadcast signal having a first part and a second part;
wherein the first part includes basic information and is received at a first data rate that is common to all wireless transmit/receive units (WTRUs) in a coverage area; and
wherein the second part includes additional information received at a higher data rate that only a subset of WTRUs in the coverage area are able to decode, wherein the WTRU is in the subset of WTRUs and wherein the subset of WTRUs have a channel condition above a threshold.
4. The method of claim 3, further comprising:
decoding the common information and the additional information.
US14/470,310 2005-04-01 2014-08-27 Method and apparatus for providing multi-rate broadcast services Abandoned US20140362760A1 (en)

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US11/321,664 US8825098B2 (en) 2005-04-01 2005-12-29 Method and apparatus for providing multi-rate broadcast services
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101512935B (en) * 2006-07-27 2013-10-30 艾利森电话股份有限公司 Layered broadcast transmission through multiple transmitters
CN101198158A (en) * 2006-12-06 2008-06-11 诺基亚西门子网络两合公司 Method and system for optimizing down-chain resource
WO2012088187A2 (en) 2010-12-20 2012-06-28 SoundBeam LLC Anatomically customized ear canal hearing apparatus

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6323909B1 (en) * 1998-10-28 2001-11-27 Hughes Electronics Corporation Method and apparatus for transmitting high definition television programming using a digital satellite system transport and MPEG-2 packetized elementary streams (PES)
US20030002518A1 (en) * 2001-04-05 2003-01-02 Docomo Communications Laboratories Usa, Inc. Slot assignment algorithm
US20030156561A1 (en) * 2002-02-19 2003-08-21 Roberto Padovani Method and apparatus for receive diversity in a communication system
US20040014482A1 (en) * 2002-05-03 2004-01-22 Samsung Electronics Co., Ltd. Apparatus and method for providing service based on multiple data rates in mobile communication system
US20050071868A1 (en) * 2003-09-30 2005-03-31 Kabushiki Kaisha Toshiba Information processing apparatus and information processing method
US20050143085A1 (en) * 2003-12-30 2005-06-30 Hao Bi Broadcast/multicast services in wireless communications networks and methods
US20050282571A1 (en) * 2004-06-02 2005-12-22 Valentin Oprescu-Surcobe Method and apparatus for regulating a delivery of a broadcast-multicast service in a packet data communication system
US20060025148A1 (en) * 2004-07-28 2006-02-02 Jeyhan Karaoguz Quality-of-service (QoS)-based delivery of multimedia call sessions using multi-network simulcasting
US20060053474A1 (en) * 2004-09-03 2006-03-09 Samsung Electro-Mechanics Co., Ltd. Radio frequency modulator
US7020103B1 (en) * 1998-03-26 2006-03-28 Ericsson Inc. Broadband communication system using point and shoot approach
US20060073827A1 (en) * 2002-12-19 2006-04-06 Nokia Corporation System and handover mechanism in frequency multilple band environment and equipment therefor
US20060098613A1 (en) * 2004-11-05 2006-05-11 Video54 Technologies, Inc. Systems and methods for improved data throughput in communications networks
US20060126590A1 (en) * 2004-01-02 2006-06-15 Padmaja Putcha Multicasting data method in a radio communication system
US20070002724A1 (en) * 2005-06-15 2007-01-04 Samsung Electronics Co., Ltd. Apparatus and method for broadcast superposition and cancellation in a multi-carrier wireless network
US20070135153A1 (en) * 2005-12-12 2007-06-14 Zhijun Cai Methods and apparatus for providing a transmit signal strength message

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5404355A (en) * 1992-10-05 1995-04-04 Ericsson Ge Mobile Communications, Inc. Method for transmitting broadcast information in a digital control channel
US5583562A (en) * 1993-12-03 1996-12-10 Scientific-Atlanta, Inc. System and method for transmitting a plurality of digital services including imaging services
JP3179957B2 (en) * 1994-02-28 2001-06-25 富士通株式会社 Receiving apparatus and receiving signal output method in multimedia communication
US5748752A (en) * 1994-12-23 1998-05-05 Reames; James B. Adaptive voice enhancing system
US5953346A (en) * 1996-06-27 1999-09-14 Interdigital Technology Corporation CDMA communication system which selectively suppresses data transmissions during establishment of a communication channel
KR20070098913A (en) * 2000-01-20 2007-10-05 노오텔 네트웍스 리미티드 Hybrid ARV Method Using Soft Coupling in Variable Rate Packet Data Applications
US6411608B2 (en) * 2000-07-12 2002-06-25 Symbol Technologies, Inc. Method and apparatus for variable power control in wireless communications systems
EP1176778A1 (en) * 2000-07-29 2002-01-30 Micronas GmbH Data transmission method
US7221648B2 (en) * 2000-11-29 2007-05-22 Lucent Technologies Inc. Rate adaptation in a wireless communication system
US6873655B2 (en) * 2001-01-09 2005-03-29 Thomson Licensing A.A. Codec system and method for spatially scalable video data
US6947436B2 (en) * 2001-02-01 2005-09-20 Motorola, Inc. Method for optimizing forward link data transmission rates in spread-spectrum communications systems
KR100814431B1 (en) * 2001-04-25 2008-03-18 삼성전자주식회사 Digital broadcasting transmitter and method using variable bit rate, video data encoding apparatus and method thereof, and decoding system and method thereof
US6779147B2 (en) * 2001-09-25 2004-08-17 Qualcomm, Incorporated Method and apparatus for efficient use of communication resources in a CDMA communication system
JP2003134064A (en) * 2001-10-26 2003-05-09 Hitachi Ltd Digital broadcast complementing method and digital broadcast receiving system
WO2004061545A2 (en) * 2003-01-06 2004-07-22 Koninklijke Philips Electronics N.V. Real-time recording agent for streaming data from an internet
JP4352976B2 (en) * 2004-04-20 2009-10-28 株式会社日立製作所 Receiving apparatus and receiving method
US7630451B2 (en) 2005-01-11 2009-12-08 Qualcomm Incorporated Methods and apparatus for transmitting layered and non-layered data via layered modulation
CN101945080B (en) 2005-01-11 2012-11-14 高通股份有限公司 Method and apparatus for decoding data in a layered modulation system
US7725799B2 (en) * 2005-03-31 2010-05-25 Qualcomm Incorporated Power savings in hierarchically coded modulation

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7020103B1 (en) * 1998-03-26 2006-03-28 Ericsson Inc. Broadband communication system using point and shoot approach
US6323909B1 (en) * 1998-10-28 2001-11-27 Hughes Electronics Corporation Method and apparatus for transmitting high definition television programming using a digital satellite system transport and MPEG-2 packetized elementary streams (PES)
US20030002518A1 (en) * 2001-04-05 2003-01-02 Docomo Communications Laboratories Usa, Inc. Slot assignment algorithm
US20030156561A1 (en) * 2002-02-19 2003-08-21 Roberto Padovani Method and apparatus for receive diversity in a communication system
US20040014482A1 (en) * 2002-05-03 2004-01-22 Samsung Electronics Co., Ltd. Apparatus and method for providing service based on multiple data rates in mobile communication system
US20060073827A1 (en) * 2002-12-19 2006-04-06 Nokia Corporation System and handover mechanism in frequency multilple band environment and equipment therefor
US20050071868A1 (en) * 2003-09-30 2005-03-31 Kabushiki Kaisha Toshiba Information processing apparatus and information processing method
US20050143085A1 (en) * 2003-12-30 2005-06-30 Hao Bi Broadcast/multicast services in wireless communications networks and methods
US20060126590A1 (en) * 2004-01-02 2006-06-15 Padmaja Putcha Multicasting data method in a radio communication system
US20050282571A1 (en) * 2004-06-02 2005-12-22 Valentin Oprescu-Surcobe Method and apparatus for regulating a delivery of a broadcast-multicast service in a packet data communication system
US20060025148A1 (en) * 2004-07-28 2006-02-02 Jeyhan Karaoguz Quality-of-service (QoS)-based delivery of multimedia call sessions using multi-network simulcasting
US20060053474A1 (en) * 2004-09-03 2006-03-09 Samsung Electro-Mechanics Co., Ltd. Radio frequency modulator
US20060098613A1 (en) * 2004-11-05 2006-05-11 Video54 Technologies, Inc. Systems and methods for improved data throughput in communications networks
US20070002724A1 (en) * 2005-06-15 2007-01-04 Samsung Electronics Co., Ltd. Apparatus and method for broadcast superposition and cancellation in a multi-carrier wireless network
US20070135153A1 (en) * 2005-12-12 2007-06-14 Zhijun Cai Methods and apparatus for providing a transmit signal strength message

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