公开(公告)号：US20040203426A1

公开(公告)日：2004-10-14

申请号：US10217126

申请日：2002-08-12

Applicant: InterDigital Technology Corporation

Inventor： Christopher Cave ,  Eldad Zeira

IPC: H04Q007/20

CPC classification number: H04L1/0061 ,  H04W24/00 ,  H04W28/18 ,  H04W74/08

Abstract: The present invention is a method for controlling access to a contention-based communication channel. Error types of a transmitted communication signal over the communication channel are classified and corresponding parameters of the communication channel are adjusted in response to the classification to control the rate at which individual error types occur.

Abstract translation: 本发明是一种用于控制对基于竞争的通信信道的访问的方法。 在通信信道上发送的通信信号的错误类型被分类，并且响应于分类来调整通信信道的相应参数以控制出现各种错误类型的速率。

公开(公告)号：US20040185788A1

公开(公告)日：2004-09-23

申请号：US10768211

申请日：2004-01-30

Applicant: InterDigital Technology Corporation

Inventor： Stephen E. Terry ,  Stephen G. Dick ,  James M. Miller ,  Eldad Zeira ,  Ariela Zeira

IPC: H04B007/00 ,  H04Q007/20

CPC classification number: H04W72/087 ,  H04B17/24 ,  H04B17/309 ,  H04B17/382 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0027 ,  H04W72/042 ,  H04W72/085 ,  H04W72/10 ,  H04W72/1231 ,  H04W72/1278

Abstract: A method for a base station to optimize radio resource utilization and adjust data rates in a wireless digital communications system. The base station communicates with a plurality of user equipment mobile terminals (UEs) and employs adaptive modulation and coding (AM&C) to achieve improved radio resource utilization and provide optimum data rates for user services. Blocks of downlink (DL) data are received by the base station which requests downlink DL channel quality measurements only from those mobile terminals (UEs) with pending downlink transmissions. The UEs respond to the request by measuring and reporting DL channel quality to the base station, which then allocates resources such that the UEs will make best use of radio resources. The base station notifies the UEs of the physical channel allocation indicating the modulation/coding rate and allocated slots followed by transmission of blocks of downlink data which are transmitted to the UEs.

Abstract translation: 一种用于基站在无线数字通信系统中优化无线电资源利用并调整数据速率的方法。 基站与多个用户设备移动终端（UE）进行通信，并采用自适应调制和编码（AM＆C）来实现改进的无线电资源利用并为用户服务提供最佳数据速率。 下行链路（DL）数据块由仅从具有未决下行链路传输的那些移动终端（UE）请求下行链路DL信道质量测量的基站接收。 UE通过向基站测量和报告DL信道质量来响应该请求，该基站然后分配资源，使得UE将充分利用无线电资源。 基站向UE发送表示调制/编码率的物理信道分配，并且向UE发送下行链路数据块的发送。

公开(公告)号：US20040141482A1

公开(公告)日：2004-07-22

申请号：US10718387

申请日：2003-11-20

Applicant: InterDigital Technology Corporation

Inventor： Eldad Zeira ,  Sung-Hyuk Shin

IPC: H04B007/216

CPC classification number: H04W52/283 ,  H04W16/10 ,  H04W16/14 ,  H04W24/10 ,  H04W52/281 ,  H04W52/282 ,  H04W52/54 ,  H04W72/0446 ,  H04W72/06 ,  H04W72/082 ,  H04W74/04

Abstract: A method and system for assigning uplink (UL) slots to optimize time division duplex (TDD) UL power. In order to assure proper power control gain, UL slots are judiciously allocated close to the beacon slot. The UL slots may be allocated based on channel sensing. All users are sorted in the order of reducing fading losses. Sorting information is also used to allocate the UL slots. The UL slots may also be allocated based on signal interference information, code usage availability estimates and spread signal interference values. Alternatively, block error rate (BLER) and signal to interference ratio (SIR) measurements may be used to allocate the UL slots.

Abstract translation: 一种用于分配上行链路（UL）时隙以优化时分双工（TDD）UL功率的方法和系统。 为了确保适当的功率控制增益，UL插槽在信标时隙附近被明智地分配。 可以基于信道感测来分配UL时隙。 所有用户按照减少衰落损失的顺序进行排序。 排序信息也用于分配UL插槽。 也可以基于信号干扰信息，代码使用可用性估计和扩展信号干扰值来分配UL时隙。 或者，可以使用块错误率（BLER）和信号与干扰比（SIR）测量来分配UL时隙。

公开(公告)号：US20040131033A1

公开(公告)日：2004-07-08

申请号：US10689485

申请日：2003-10-20

Applicant: InterDigital Technology Corporation

Inventor： Stephen G. Dick ,  Eldad Zeira

IPC: H04B007/216

CPC classification number: H04W52/50 ,  H04B1/707 ,  H04W52/32 ,  H04W74/0833

Abstract: A data packet is provided for transmission having a first processing gain for reception at a first power level or higher. The data packet is modified prior to transmission such that the data packet has a preamble wherein data in the preamble has a second processing gain higher than the first processing gain for reception at a second power level lower than the first power level or higher. The user equipment unit transmits the modified data packet over the random access channel at a power level such that the modified data packet is initially received at the base station at at least the second power level. The transmission power level is adaptively controlled while the preamble data is transmitted such that the base station receives the data of the data packet having the first processing gain at least the first power level.

Abstract translation: 提供用于传输的数据分组，其具有用于在第一功率级或更高级别的接收的第一处理增益。 数据分组在传输之前被修改，使得数据分组具有前同步码，其中前导码中的数据具有比第一处理增益高的第二处理增益，用于在低于第一功率电平或更高的第二功率电平进行接收。 用户设备单元以功率电平在随机接入信道上发送经修改的数据分组，使得修改的数据分组最初在基站处以至少第二功率电平被接收。 在发送前导码数据的同时自适应地控制发送功率电平，使得基站在至少第一功率电平上接收具有第一处理增益的数据分组的数据。

公开(公告)号：US20040114574A1

公开(公告)日：2004-06-17

申请号：US10447871

申请日：2003-05-29

Applicant: InterDigital Technology Corporation

Inventor： Eldad Zeira ,  Guodong Zhang ,  Stephen E. Terry ,  Ana Lucia Iacono ,  Janet Stern-Berkowitz ,  Maged Zaki ,  Teresa Joanne Hunkeler

IPC: H04L012/66

CPC classification number: H04W28/18 ,  H04L1/0002 ,  H04L1/0017 ,  H04W28/14 ,  H04W28/22 ,  H04W52/08 ,  H04W52/10 ,  H04W52/242 ,  H04W72/0406 ,  H04W72/0486 ,  H04W72/085 ,  H04W76/10 ,  H04W76/30 ,  H04W76/38

Abstract: A temporary (temp) dedicated channel (DCH) is used to support communications. The temp-DCH channel is a channel that is assigned to a user having a set duration. After the duration expires, the channel is automatically released to the user. Embodiments of the invention relate to establishing the temp-DCH channel, determining the data rate and duration of the channel. Other embodiments relate to establishing back-to-back temp-DCH channels and the implementation details of these embodiments. Additionally, one embodiment relates to adding a start/stop function to the medium access controller which can be used in conjunction with temp-DCH as well as other applications.

Abstract translation: 临时（临时）专用信道（DCH）用于支持通信。 临时DCH信道是被分配给具有设定持续时间的用户的信道。 持续时间到期后，频道将自动释放给用户。 本发明的实施例涉及建立临时DCH信道，确定信道的数据速率和持续时间。 其他实施例涉及建立背对背温度DCH信道和这些实施例的实现细节。 此外，一个实施例涉及向可与temp-DCH以及其他应用结合使用的介质访问控制器添加启动/停止功能。

公开(公告)号：US20040037263A1

公开(公告)日：2004-02-26

申请号：US10437164

申请日：2003-05-13

Applicant: InterDigital Technology Corporation

Inventor： Eldad Zeira

IPC: H04B007/212

CPC classification number: H04W72/082 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/086 ,  H04W16/28 ,  H04W24/10 ,  H04W52/42 ,  H04W72/02 ,  H04W72/0446

Abstract: The invention includes several embodiments for slot assignment in code division multiple access communication systems. Some of the embodiments relate to fixed beams and others relate to adaptive arrays. One embodiment for fixed beams assigns slots by first detecting a beam having the best received quality and selected the best slot from that beam. Another fixed beam embodiment determines the best slot or slots in a number of beams and determines the overall best beam/slot combination. Another fixed beam embodiment uses a modified interference factor. One embodiment for the uplink using adaptive arrays using a spatial analysis stage followed by a transmission power level estimation stage. An overall interference level associated with each slot is determined and a slot having the best overall quality is determined. Another embodiment for the downlink uses the spatial analysis and slot assignment of the uplink for the downlink. Another embodiment for the downlink uses a spatial and transmission power level estimation stages. For adaptive arrays, the slot assignment can be determined whether the pathloss for each user is estimated or not and whether signals from each user are received or not.

Abstract translation: 本发明包括用于码分多址通信系统中的时隙分配的几个实施例。 一些实施例涉及固定光束，而其它实施例涉及自适应阵列。 固定波束的一个实施例通过首先检测具有最佳接收质量的波束并从该波束中选择最佳时隙来分配时隙。 另一个固定波束实施例确定多个波束中的最佳时隙或时隙，并确定整体最佳波束/时隙组合。 另一固定波束实施例使用修改的干扰因子。 使用自适应阵列的上行链路的一个实施例使用空间分析阶段，接着是传输功率电平估计级。 确定与每个时隙相关联的整体干扰电平，并且确定具有最佳整体质量的时隙。 下行链路的另一实施例使用用于下行链路的上行链路的空间分析和时隙分配。 下行链路的另一实施例使用空间和发射功率电平估计级。 对于自适应阵列，可以确定时隙分配是否估计每个用户的路径损耗以及是否接收到来自每个用户的信号。

公开(公告)号：US20030086394A1

公开(公告)日：2003-05-08

申请号：US10216120

申请日：2002-08-09

Applicant: InterDigital Technology Corporation

Inventor： Eldad Zeira ,  Ariela Zeira ,  Stephen E. Terry

IPC: H04Q007/00 ,  H04J003/00

CPC classification number: H04W36/30

Abstract: A time division duplex method for determining whether to initiate handover of a mobile unit from a serving base station to a target base station, the method comprises receiving the broadcast channel from the serving base station (BCHser); calculating the serving base station received signal code power (RSCPser); receiving the broadcast channel from the target base station (BCHtar); calculating the target base station received signal code power (RSCPtar); determining interference signal code power for the serving base station (ISCPser); determining interference signal code power for the target base station (ISCPtar); calculating RSCPser/ISCPser; calculating RSCPtar/ISCPtar; and determining whether RSCPser/ISCPser is less than RSCPtar/ISCPtar, and if so, commencing handover from the serving base station to the target base station.

Abstract translation: 一种用于确定是否发起移动单元从服务基站到目标基站的切换的时分双工方法，所述方法包括：从服务基站（BCHser）接收广播信道; 计算服务基站接收信号码功率（RSCPser）; 从目标基站（BCHtar）接收广播信道; 计算目标基站接收信号码功率（RSCPtar）; 确定服务基站（ISCPser）的干扰信号码功率; 确定目标基站的干扰信号码功率（ISCPtar）; 计算RSCPser / ISCPser; 计算RSCPtar / ISCPtar; 并确定RSCPser / ISCPser是否小于RSCPtar / ISCPtar，如果是，则从服务基站开始切换到目标基站。

公开(公告)号：US20030035394A1

公开(公告)日：2003-02-20

申请号：US10029706

申请日：2001-12-21

Applicant: InterDigital Technology Corporation

Inventor： Eldad Zeira ,  Stephen E. Terry ,  Ariela Zeira

IPC: H04B007/216

CPC classification number: H04W52/367 ,  H04W52/54 ,  H04W72/042 ,  H04W72/085

Abstract: A TTD system implements dynamic link adaptation by adding or changing control information to notify the receiver which timeslots and codes are currently active and which timeslots should be avoided. The system synchronizes the transmitter and the receiver such that the receiver knows which timeslots and codes the transmitter has used to map the coded composite transport channel onto physical channels. The system attempts to avoid the timeslots which are experiencing transmission difficulties, while attempting to utilize the timeslots which are not experiencing transmission problems.

Abstract translation: TTD系统通过添加或改变控制信息来实现动态链路自适应，以通知接收机哪些时隙和代码当前是活动的，哪些时隙应该被避免。 该系统使发射机和接收机同步，使得接收机知道发射机已经将哪个时隙和码用于将编码的复合传输信道映射到物理信道上。 系统尝试避免正在经历传输困难的时隙，同时尝试利用未遇到传输问题的时隙。

公开(公告)号：US20020167928A1

公开(公告)日：2002-11-14

申请号：US10029651

申请日：2001-12-21

Applicant: InterDigital Technology Corporation

Inventor： Stephen E. Terry ,  Stephen G. Dick ,  James M. Miller ,  Eldad Zeira ,  Ariela Zeira

IPC: H04B007/216 ,  H04B007/212

CPC classification number: H04J13/16 ,  H04B7/2618

Abstract: A sequence of codes are provided for potential assignment to a user in a wireless hybrid time division multiple access (TDMA)/code division multiple access (CDMA) communication system. At least one timeslot is selected to support the communication. For each selected timeslot, at least one code is selected. If more than one code is selected, the selected codes are consecutive in the provided codes sequence. For at least one of the selected timeslots, an identifier of a first and last code of the selected consecutive codes is signaled. The user receives the signaled identifier and uses the selected consecutive codes, as identified, to support the communication.

Abstract translation: 提供了一系列代码用于在无线混合时分多址（TDMA）/码分多址（CDMA）通信系统中对用户的潜在分配。 选择至少一个时隙来支持通信。 对于每个选定的时隙，至少选择一个代码。 如果选择多个代码，所选代码在提供的代码序列中是连续的。 对于所选择的时隙中的至少一个，发出所选择的连续码的第一个和最后一个码的标识符。 用户接收信号标识符并使​​用所识别的所选择的连续代码来支持通信。

公开(公告)号：US20020110099A1

公开(公告)日：2002-08-15

申请号：US10090498

申请日：2002-03-04

Applicant: InterDigital Technology Corporation

Inventor： Ariela Zeira ,  Eldad Zeira ,  Alexander Reznik ,  Stephen E. Terry

IPC: H04B007/216

CPC classification number: H04B1/7103 ,  H04B1/707 ,  H04B1/70735 ,  H04B1/7105 ,  H04B2001/70935 ,  H04B2201/70701 ,  H04B2201/70709 ,  H04J13/00 ,  H04J13/16

Abstract: A method of using a user equipment (UE) in a wireless time division duplex communication system. The system uses code division multiple access and communicates using communication bursts. Each communication burst has a unique channelization code and a midamble code which is uniquely related to the channelization code, each such midamble code being uniquely related to one or more channelization code. The UE receives communication bursts and detects each midamble code in a received communication burst. The UE determines the channelization codes related to each detected midamble based on a mapping of midamble codes to related channelization codes. The UE detects channelization codes in the received communication burst from among the determined channelization codes. The UE recovers data from the received communication burst based on in part the detected channelization codes. Where all midamble codes are uniquely related to one channelization code, the UE recovers data from the received communication burst based on in part the determined channelization codes without the additional channelization code detection step.

Abstract translation: 一种在无线时分双工通信系统中使用用户设备（UE）的方法。 该系统使用码分多址，并使用通信脉冲进行通信。 每个通信突发具有唯一的信道化码和与信道化码唯一相关的中间码，每个这样的中间码与唯一的一个或多个信道化码有关。 UE接收通信突发并检测接收到的通信突发中的每个中间码。 UE根据中间码编码与相关信道化码的映射，确定与每个检测到的中间码相关的信道化码。 UE从确定的信道化码中检测接收到的通信突发中的信道化码。 基于部分检测到的信道化码，UE从接收到的通信脉冲串中恢复数据。 在所有中间码编码与一个信道化码唯一相关的情况下，UE部分地基于所确定的信道化码，而不用附加的信道化码检测步骤，从接收到的通信脉冲串中恢复数据。