公开(公告)号：DE602005004757T2

公开(公告)日：2009-02-26

申请号：DE602005004757

申请日：2005-12-15

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BALACHANDRAN KRISHNA ,  KANG JOSEPH H

Abstract: In a wireless communications system which hops from frequency to frequency, rather than hopping according to a fixed dwell interval and a predetermined pseudo-random hop sequence, a quality-based frequency hopping methodology is defined in which a new frequency is hopped to when the channel quality on the current frequency degrades based on the measured value or values of one or more predetermined metrics that are associated with channel quality. When triggered to hop to a next frequency, the hop-to-frequency may be the next frequency in the pseudo-random hop sequence known to both the transmitter and receiver or, in order to improve the reliability of communications, may be determined based on channel quality measurements on different potential hop-to-frequencies.

公开(公告)号：CA2378808A1

公开(公告)日：2002-11-07

申请号：CA2378808

申请日：2002-03-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BALACHANDRAN KRISHNA ,  KANG JOSEPH H ,  SANWAL KUMUD K ,  SEYMOUR JAMES PAUL

IPC: H04B1/7143 ,  H04B1/715 ,  H04Q7/36 ,  H04B1/713

Abstract: A wireless endpoint employs frequency hopping for communicating signals in a wireless communications system. Over a time period T, the wireless endpoint performs pseudo-random selection of a frequency from a hopping set of N frequencies such that over at least a portion of the time period T, the frequency selection is constrained to less than the N frequencies.

公开(公告)号：DE602004008181D1

公开(公告)日：2007-09-27

申请号：DE602004008181

申请日：2004-09-29

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BALACHANDRAN KRISHNA ,  BUDKA KENNETH C ,  DAS ARNAB ,  KANG JOSEPH H

IPC: H04W60/04 ,  H04B7/26 ,  H04L12/56

Abstract: A method of triggering registration of a mobile station in a network supporting broadcast multicast services employs registration triggers based on flow conditions and frequency conditions. For example, a registration message may be generated based on a change in frequency, from a first frequency to a second frequency, that is monitored by the mobile station. If the second frequency is not known to the network based on flow identifier information previously registered by the mobile station with the network, a registration to the network is triggered. By sending a registration, the network may page a mobile station on a single, given frequency, since the registration message indicates the mobile station's presence on that given frequency.

公开(公告)号：DE602005004757D1

公开(公告)日：2008-03-27

申请号：DE602005004757

申请日：2005-12-15

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BALACHANDRAN KRISHNA ,  KANG JOSEPH H

Abstract: In a wireless communications system which hops from frequency to frequency, rather than hopping according to a fixed dwell interval and a predetermined pseudo-random hop sequence, a quality-based frequency hopping methodology is defined in which a new frequency is hopped to when the channel quality on the current frequency degrades based on the measured value or values of one or more predetermined metrics that are associated with channel quality. When triggered to hop to a next frequency, the hop-to-frequency may be the next frequency in the pseudo-random hop sequence known to both the transmitter and receiver or, in order to improve the reliability of communications, may be determined based on channel quality measurements on different potential hop-to-frequencies.

公开(公告)号：DE602004016928D1

公开(公告)日：2008-11-20

申请号：DE602004016928

申请日：2004-08-23

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BALACHANDRAN KRISHNA ,  BUDKA KENNETH C ,  DAS ARNAB ,  KANG JOSEPH H

IPC: H04L12/56 ,  H04B7/26 ,  H04W4/06 ,  H04W68/04

Abstract: Methods for signaling information to a group of users in a communication network supporting a broadcast-multicast service are described, in which one or more indicator bits of a sequence may be assigned to indicate transmission of signaling information that is related to the group. The sequence may be transmitted to the group on a first channel, with the signaling information related to the group being transmitted on a second channel.

公开(公告)号：DE602004008181T2

公开(公告)日：2008-05-08

申请号：DE602004008181

申请日：2004-09-29

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BALACHANDRAN KRISHNA ,  BUDKA KENNETH C ,  DAS ARNAB ,  KANG JOSEPH H

IPC: H04W60/04 ,  H04B7/26 ,  H04L12/56

Abstract: A method of triggering registration of a mobile station in a network supporting broadcast multicast services employs registration triggers based on flow conditions and frequency conditions. For example, a registration message may be generated based on a change in frequency, from a first frequency to a second frequency, that is monitored by the mobile station. If the second frequency is not known to the network based on flow identifier information previously registered by the mobile station with the network, a registration to the network is triggered. By sending a registration, the network may page a mobile station on a single, given frequency, since the registration message indicates the mobile station's presence on that given frequency.

公开(公告)号：WO2008048236A3

公开(公告)日：2008-07-17

申请号：PCT/US2006034696

申请日：2006-09-06

Applicant: LUCENT TECHNOLOGIES INC ,  BALACHANDRAN KRISHNA ,  KANG JOSEPH H

Inventor： BALACHANDRAN KRISHNA ,  KANG JOSEPH H

IPC: H04L12/56 ,  H04W72/08 ,  H04W84/18

CPC classification number: H04W72/085 ,  H04W72/0406 ,  H04W84/18

Abstract: In an ad hoc network in which nodes communicate directly with each other or through another node, hole exchange messages are transmitted on an ongoing basis from one node to one or more other nodes. The spectrum hole message transmitted by a node provides a current view of the frequency spectrum as seen by the transmitting node, indicating where in the spectrum holes exist that are available for transmission. Hole exchange messages are transmitted by a node in response to either time triggers or event triggers. The former includes transmitting a hole exchange message periodically, pseudo-periodically, or according to a timer expiry. The latter includes events such as the node discovering the presence of a new node, receiving a request from another node for the node's current view of the spectrum, upon bearer selection during call setup between the node and another node, degradation of the link between the node and another node, and upon bearer release between the node and another node.

Abstract translation: 在其中节点彼此直接通信或通过另一个节点进行通信的自组织网络中，空穴交换消息在正在进行的基础上从一个节点传输到一个或多个其他节点。 由节点发送的频谱空穴消息提供发射节点所看到的频谱的当前视图，指示频谱空洞中可用于传输的位置。 响应时间触发或事件触发，节点发送空洞交换消息。 前者包括周期性地，伪周期性地或根据定时器到期来发送空洞交换消息。 后者包括以下事件，例如节点发现新节点的存在，接收来自另一节点的针对该节点的当前频谱视图的请求，在节点与另一个节点之间的呼叫建立期间的承载选择， 节点和另一个节点，以及节点和另一个节点之间的承载释放。

公开(公告)号：WO2008039294A3

公开(公告)日：2008-05-08

申请号：PCT/US2007019524

申请日：2007-09-07

Applicant: LUCENT TECHNOLOGIES INC ,  BALACHANDRAN KRISHNA ,  CAILIN DORU ,  JOSHI NIRANJAN SUDHIR ,  KANG JOSEPH H ,  KOGIANTIS ACHILLES

Inventor： BALACHANDRAN KRISHNA ,  CAILIN DORU ,  JOSHI NIRANJAN SUDHIR ,  KANG JOSEPH H ,  KOGIANTIS ACHILLES

IPC: H04L12/28 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04W72/04 ,  H04W72/0486 ,  H04W72/08

Abstract: The present invention provides a method for allocating portions of a frame to a plurality of mobile units including a plurality of frequency subcarrier sets and a plurality of symbols. The method includes determining at least one zone comprising at least one of the plurality of subcarrier sets and at least one of the plurality of symbols and determining a plurality of subzones. Each subzone includes at least one of the plurality of subcarrier sets and at least one of the plurality of symbols in the at least one zone. The method also includes associating each of the plurality of mobile units with at least one of the subzones and allocating a portion of the subcarrier sets and symbols in each subzone to the mobile units associated with each subzone.

Abstract translation: 本发明提供了一种用于将帧的部分分配给包括多个频率副载波集和多个码元的多个移动单元的方法。 该方法包括确定包括多个副载波集合中的至少一个和多个符号中的至少一个的至少一个区域，并确定多个子区域。 每个子区包括多个子载波集中的至少一个和至少一个区中的多个符号中的至少一个。 该方法还包括将多个移动单元中的每一个与至少一个子区相关联，并将每个子区中的一部分子载波集和符号分配给与每个子区相关联的移动单元。