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1. 发明公开

EP0930738A2 Optimal complementary punctured convolutional codes for use in digital audio broadcasting and other applications 审中-公开
标题翻译：最佳互补删除卷积在数字无线电广播的使用和用于其他用途
公开(公告)号：EP0930738A2
公开(公告)日：1999-07-21
申请号：EP99300182.5
申请日：1999-01-12
申请人： LUCENT TECHNOLOGIES INC.
发明人： Chen, Brian , Sundberg, Carl-Erik Wilhelm
IPC分类号： H04H1/00
CPC分类号： H04H20/30 , H04H2201/20 , H04L1/0059 , H04L1/0069 , H04L1/007
摘要： The invention provides optimal complementary punctured convolutional codes for coding information bits in a communication system. In an illustrative embodiment, an optimal pair of complementary punctured codes is selected from a set of potential code pairs. The set of potential code pairs includes all non-catastrophic complementary punctured code pairs which combine to produce to a specified full-bandwidth code, and thus includes both equivalent and non equivalent complementary codes. The optimal code pair may be selected, for example, as the pair of equivalent or non-equivalent codes which has the best free Hamming distance and minimum information error weight of all the pairs in the set. In addition, the invention provides both rate-compatible and rate-incompatible codes suitable for use in providing unequal error protection (UEP) for different classes of information bits. The invention further provides optimal bit assignment techniques for use in digital audio broadcasting or other applications in which digital information is transmitted on subcarriers in both an upper and a lower sideband of an analog carrier.
摘要翻译：本发明提供用于在通信系统中编码信息位的最佳互补打孔卷积码。在说明性实施例，最佳对互补凿孔码是从一组潜在码对选择的。该组潜在代码对包括所有非灾难性互补收缩码对哪个组合以产生到指定的全带宽的代码，并且包括因此两个等量和非等同的互补码。最佳代码对可被选择，例如，作为对等效或非等效代码已经在集合中的所有对的最佳自由Hamming距离和最小信息错误权重。此外，本发明提供适用于提供用于不同类别的信息比特的不等错误保护（UEP）使用这两个速率兼容和速率不相容代码。本发明进一步提供在数字音频广播或其它应用程序，其中数字信息是在这两者上在子载波上的反式mitted和模拟载波的下边带的使用最佳的位分配的技术。

2. 发明公开

EP0952696A3 Technique for communicating digitally modulated signals over an amplitude-modulation frequency band 有权
标题翻译：用于在一个AM频带发送数字调制信号的方法
公开(公告)号：EP0952696A3
公开(公告)日：2003-11-19
申请号：EP99302843.0
申请日：1999-04-13
申请人： LUCENT TECHNOLOGIES INC.
发明人： Chen, Brian , Sundberg, Carl-Erik Wilhelm
IPC分类号： H04L5/02 , H04B7/005 , H04L27/26 , H04M11/06 , H04H1/00
CPC分类号： H04L5/023 , H04J11/003 , H04J11/005 , H04L25/03853 , H04L27/2646
摘要： In a communications system implementing an in-band on channel AM (IBOC-AM) (also known as "hybrid IBOC-AM") scheme, digitally modulated signals are transmitted in a 30 kHz digital band centered at an analog host AM carrier frequency f c . The host AM carrier is assigned to the geographic area served by the communications system for AM radio broadcast. It is likely that a similar IBOC-AM scheme is implemented in an adjacent area which is assigned a second analog host AM carrier having a frequency which is either 20 kHz higher or lower than f c . In that case, the transmission of the digitally modulated signals are interfered by a similar transmission in the adjacent area. The interference is known as "second adjacent channel interference." To reduce such interference, selected power profiles in accordance with the invention are used to allocate the relative transmission power to the digitally modulated signals in the digital band.

3. 发明公开

EP0866577A3 Band insertion and precancellation technique for simultaneous communications of analog frequency-modulated and digitally modulated signals 失效
标题翻译：带插入和技术来Vorlöschung数字调制信号调制的模拟频率的并发通信和
公开(公告)号：EP0866577A3
公开(公告)日：2003-12-17
申请号：EP98301784.9
申请日：1998-03-11
申请人： LUCENT TECHNOLOGIES INC.
发明人： Chen, Brian , Sundberg, Carl-Erik Wilhelm
IPC分类号： H04J9/00 , H04H1/00
CPC分类号： H04H20/30 , H04J9/00 , H04L5/023
摘要： In a system for simulcasting digitally modulated and analog FM signals over the same FM frequency band, the effect of the analog FM signal on the digitally modulated signal in the simulcast is calculated and canceled from the latter signal before its transmission. As a result, the digital transmission is free from interference from the analog FM signal. Moreover, the digital transmission is achieved by adaptively inserting a time varying number of carriers modulated by digital data into the FM band. The carriers are selected frame by frame to control their interference with the analog FM signal. In accordance with the invention, the carriers are selected in a predetermined order, and in a preferred embodiment grouped contiguously with one another in the FM band. As a result, the rate of control information required to identify the inserted carriers to a receiver is advantageously low.

4. 发明公开

EP1014590A3 Optimal complementary punctured convolutional codes 有权
标题翻译：最佳互补删除卷积
公开(公告)号：EP1014590A3
公开(公告)日：2003-05-07
申请号：EP99309821.9
申请日：1999-12-07
申请人： LUCENT TECHNOLOGIES INC.
发明人： Chen, Brian , Sundberg, Carl-Erik Wilhelm
IPC分类号： H03M13/23
CPC分类号： H04L1/0059 , H03M13/23 , H04L1/0041 , H04L1/0069 , H04L1/007 , H04L27/2602
摘要： The invention provides optimal complementary punctured convolutional codes for coding information bits in a communication system. In an illustrative embodiment, an optimal pair of complementary punctured codes is selected from a set of potential code pairs. The set of potential code pairs includes all non-catastrophic complementary punctured code pairs which combine to produce to a specified full-bandwidth code, and thus includes both equivalent and non-equivalent complementary codes. The optimal code pair may be selected, for example, as the pair of equivalent or non-equivalent codes which has the best free Hamming distance and minimum information error weight of all the pairs in the set. In addition, the invention provides both rate-compatible and rate-incompatible codes suitable for use in providing unequal error protection (UEP) for different classes of information bits. The invention further provides optimal bit assignment techniques for use in digital audio broadcasting or other applications in which digital information is transmitted on subcarriers in both an upper and a lower sideband of an analog carrier.

5. 发明公开

EP1014590A2 Optimal complementary punctured convolutional codes 有权
标题翻译： Optimalekomplementärepunktierte Faltungskodes
公开(公告)号：EP1014590A2
公开(公告)日：2000-06-28
申请号：EP99309821.9
申请日：1999-12-07
申请人： LUCENT TECHNOLOGIES INC.
发明人： Chen, Brian , Sundberg, Carl-Erik Wilhelm
IPC分类号： H03M13/23
CPC分类号： H04L1/0059 , H03M13/23 , H04L1/0041 , H04L1/0069 , H04L1/007 , H04L27/2602
摘要： The invention provides optimal complementary punctured convolutional codes for coding information bits in a communication system. In an illustrative embodiment, an optimal pair of complementary punctured codes is selected from a set of potential code pairs. The set of potential code pairs includes all non-catastrophic complementary punctured code pairs which combine to produce to a specified full-bandwidth code, and thus includes both equivalent and non-equivalent complementary codes. The optimal code pair may be selected, for example, as the pair of equivalent or non-equivalent codes which has the best free Hamming distance and minimum information error weight of all the pairs in the set. In addition, the invention provides both rate-compatible and rate-incompatible codes suitable for use in providing unequal error protection (UEP) for different classes of information bits. The invention further provides optimal bit assignment techniques for use in digital audio broadcasting or other applications in which digital information is transmitted on subcarriers in both an upper and a lower sideband of an analog carrier.
摘要翻译：本发明提供了用于对通信系统中的信息比特进行编码的最佳互补穿孔卷积码。在说明性实施例中，从一组潜在代码对中选择最佳的互补穿孔码对。潜在代码对的集合包括组合产生到指定的全带宽代码的所有非灾难性互补穿孔码对，并且因此包括等效和非等效的互补码。可以选择最佳代码对，例如，作为组中所有对的最佳空闲汉明距离和最小信息误差权重的等效或非等效代码对。此外，本发明提供适用于为不同类别的信息比特提供不等差错保护（UEP）的速率兼容和速率不兼容的代码。本发明还提供了用于数字音频广播或数字信息在模拟载波的上边带和下边带中的子载波上发送的其他应用的最佳比特分配技术。

6. 发明公开

EP0952696A2 Technique for communicating digitally modulated signals over an amplitude-modulation frequency band 有权
标题翻译： Verfahren zurÜbertragung数字调制器Signaleüberein AM-Frequenzband
公开(公告)号：EP0952696A2
公开(公告)日：1999-10-27
申请号：EP99302843.0
申请日：1999-04-13
申请人： LUCENT TECHNOLOGIES INC.
发明人： Chen, Brian , Sundberg, Carl-Erik Wilhelm
IPC分类号： H04L5/02
CPC分类号： H04L5/023 , H04J11/003 , H04J11/005 , H04L25/03853 , H04L27/2646
摘要： In a communications system implementing an in-band on channel AM (IBOC-AM) (also known as "hybrid IBOC-AM") scheme, digitally modulated signals are transmitted in a 30 kHz digital band centered at an analog host AM carrier frequency f c . The host AM carrier is assigned to the geographic area served by the communications system for AM radio broadcast. It is likely that a similar IBOC-AM scheme is implemented in an adjacent area which is assigned a second analog host AM carrier having a frequency which is either 20 kHz higher or lower than f c . In that case, the transmission of the digitally modulated signals are interfered by a similar transmission in the adjacent area. The interference is known as "second adjacent channel interference." To reduce such interference, selected power profiles in accordance with the invention are used to allocate the relative transmission power to the digitally modulated signals in the digital band.
摘要翻译：在实现频带AM（IBOC-AM）（也称为“混合IBOC-AM”）方案的通信系统中，数字调制信号在以模拟主机AM载波频率fc为中心的30kHz数字频带中发送。主机AM载波被分配给由AM无线电广播的通信系统服务的地理区域。在相邻区域中实现类似的IBOC-AM方案很可能被分配有频率高于或低于fc的20kHz的第二模拟主机AM载波。在这种情况下，数字调制信号的传输被相邻区域中的相似传输干扰。干扰被称为“第二相邻信道干扰”。为了减少这样的干扰，使用根据本发明的所选择的功率曲线来将相对发射功率分配给数字频带中的数字调制信号。

7. 发明授权

EP0866577B1 Band insertion and precancellation technique for simultaneous communications of analog frequency-modulated and digitally modulated signals 失效
标题翻译：带插入和技术来Vorlöschung数字调制信号调制的模拟频率的并发通信和
公开(公告)号：EP0866577B1
公开(公告)日：2010-06-30
申请号：EP98301784.9
申请日：1998-03-11
申请人： LUCENT TECHNOLOGIES INC.
发明人： Chen, Brian , Sundberg, Carl-Erik Wilhelm
IPC分类号： H04H20/31
CPC分类号： H04H20/30 , H04J9/00 , H04L5/023

8. 发明授权

EP0952696B1 Technique for communicating digitally modulated signals over an amplitude-modulation frequency band 有权
标题翻译：用于在一个AM频带发送数字调制信号的方法
公开(公告)号：EP0952696B1
公开(公告)日：2006-09-20
申请号：EP99302843.0
申请日：1999-04-13
申请人： LUCENT TECHNOLOGIES INC.
发明人： Chen, Brian , Sundberg, Carl-Erik Wilhelm
IPC分类号： H04L5/02 , H04B7/005 , H04L27/26 , H04M11/06 , H04H1/00
CPC分类号： H04L5/023 , H04J11/003 , H04J11/005 , H04L25/03853 , H04L27/2646

9. 发明公开

EP0930738A3 Optimal complementary punctured convolutional codes for use in digital audio broadcasting and other applications 审中-公开
标题翻译：最佳互补删除卷积在数字无线电广播的使用和用于其他用途
公开(公告)号：EP0930738A3
公开(公告)日：2005-04-13
申请号：EP99300182.5
申请日：1999-01-12
申请人： LUCENT TECHNOLOGIES INC.
发明人： Chen, Brian , Sundberg, Carl-Erik Wilhelm
IPC分类号： H04H1/00 , H03M13/00 , H03M13/23 , H04L1/00
CPC分类号： H04H20/30 , H04H2201/20 , H04L1/0059 , H04L1/0069 , H04L1/007
摘要： The invention provides optimal complementary punctured convolutional codes for coding information bits in a communication system. In an illustrative embodiment, an optimal pair of complementary punctured codes is selected from a set of potential code pairs. The set of potential code pairs includes all non-catastrophic complementary punctured code pairs which combine to produce to a specified full-bandwidth code, and thus includes both equivalent and non equivalent complementary codes. The optimal code pair may be selected, for example, as the pair of equivalent or non-equivalent codes which has the best free Hamming distance and minimum information error weight of all the pairs in the set. In addition, the invention provides both rate-compatible and rate-incompatible codes suitable for use in providing unequal error protection (UEP) for different classes of information bits. The invention further provides optimal bit assignment techniques for use in digital audio broadcasting or other applications in which digital information is transmitted on subcarriers in both an upper and a lower sideband of an analog carrier.

10. 发明公开

EP0866577A2 Band insertion and precancellation technique for simultaneous communications of analog frequency-modulated and digitally modulated signals 失效
标题翻译：带插入和技术来Vorlöschung数字调制信号调制的模拟频率的并发通信和
公开(公告)号：EP0866577A2
公开(公告)日：1998-09-23
申请号：EP98301784.9
申请日：1998-03-11
申请人： LUCENT TECHNOLOGIES INC.
发明人： Chen, Brian , Sundberg, Carl-Erik Wilhelm
IPC分类号： H04J9/00
CPC分类号： H04H20/30 , H04J9/00 , H04L5/023
摘要： In a system for simulcasting digitally modulated and analog FM signals over the same FM frequency band, the effect of the analog FM signal on the digitally modulated signal in the simulcast is calculated and canceled from the latter signal before its transmission. As a result, the digital transmission is free from interference from the analog FM signal. Moreover, the digital transmission is achieved by adaptively inserting a time varying number of carriers modulated by digital data into the FM band. The carriers are selected frame by frame to control their interference with the analog FM signal. In accordance with the invention, the carriers are selected in a predetermined order, and in a preferred embodiment grouped contiguously with one another in the FM band. As a result, the rate of control information required to identify the inserted carriers to a receiver is advantageously low.
摘要翻译：在用于通过相同的FM频带同播数字调制和模拟FM信号的系统，在所述的联播数字调制信号的模拟FM信号的影响被计算并且从它的传输之前后期信号取消。其结果是，该数字传输与从模拟FM信号的干扰。更完了，数字传输是通过自适应地插入由数字数据调制成FM带状载体的一个随时间变化的数目来实现的。的载流子被帧选择的帧，以控制它们与模拟FM信号的干扰。在符合本发明雅舞蹈，载流子以预定的顺序选择，并且在一个优选实施方案与在FM磁带彼此连续分组。其结果是，以识别所插入的载流子到接收器所需的控制信息的速率是有利的低。

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