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公开(公告)号：US09780972B2
公开(公告)日：2017-10-03
申请号：US15273135
申请日：2016-09-22
发明人： Stefano Sorrentino , George Jongren
IPC分类号： H04W56/00 , H04L25/02 , H04W24/08 , H04L5/00 , H04L12/26 , H04L27/26 , H04W16/32 , H04W88/02
CPC分类号： H04L25/0204 , H04L5/0048 , H04L27/2601 , H04L43/028 , H04W16/32 , H04W24/08 , H04W56/001 , H04W56/0095 , H04W88/02
摘要： Some embodiments provide a method for channel estimation in a wireless device. According to the method, the wireless device obtains (1010) an indication that a set of antenna ports, or antenna port types, share at least one channel property. The wireless device then estimates (1020) one or more of the shared channel properties based at least on a first reference signal received from a first antenna port included in the set, or having a type corresponding to one of the types in the set. Furthermore, the wireless device performs (1030) channel estimation based on a second reference signal received from a second antenna port included in the set, or having a type corresponding to one of the types in the set, wherein the channel estimation is performed using at least the estimated channel properties.
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公开(公告)号：US20170273043A1
公开(公告)日：2017-09-21
申请号：US15615955
申请日：2017-06-07
发明人： Stefano Sorrentino
CPC分类号： H04W56/003 , H04W56/001 , H04W72/044 , H04W76/15
摘要： In one aspect of the teachings herein, a transmitter transmits synchronization signals according to one or more defined transmission characteristics that enable a receiver to distinguish the type of transmitter and/or the type of carrier used to convey the synchronization signals. Different types of transmitters reuse at least some of the same synchronization signal sequences and generation algorithms, but use different transmission parameters to impart one or more recognizable characteristics to the transmitted synchronization signals. In turn, an appropriately configured receiver “knows” which characteristics are associated with which transmitter and/or carrier types. For example, wireless devices operating in a wireless communication network transmit device-generated synchronization signals that reuse at least some of the same sequences used by network base stations for the transmission of network synchronization signals. However, device-generated synchronization signals are transmitted using a relative positioning or mapping that characteristically differs from that used for network synchronization signals.
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公开(公告)号：US20170230922A1
公开(公告)日：2017-08-10
申请号：US15113695
申请日：2015-01-13
发明人： Zhenshan Zhao , Qianxi Lu , Stefano Sorrentino
CPC分类号： H04W56/001 , H04L5/14
摘要： Embodiments of the disclosure provide a method, an apparatus, a network node, and a computer program product for transmitting D2D synchronization signals. According to the method, D2D synchronization signals are received from a first network node. A hop number of the D2D synchronization signals is determined based on radio resources of the D2D synchronization signals. Whether to transmit the D2D synchronization signals to a second network node is determined based on the hop number.
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公开(公告)号：US20160330676A1
公开(公告)日：2016-11-10
申请号：US15025715
申请日：2016-02-01
摘要： There is disclosed a method for operating a D2D enabled UE for a cellular communication network. The method comprises performing a cell search in an out of coverage condition of the UE, wherein performing a cell search is based on a first measurement configuration during a first phase, and based on a second measurement configuration during a second phase, wherein the first measurement configuration pertains to a carrier whose sidelink is preconfigured for ProSe operation in out of network coverage operation.The disclosure also pertains to related methods and devices.
摘要翻译： 本公开还涉及相关方法和装置。
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公开(公告)号：US20160294524A1
公开(公告)日：2016-10-06
申请号：US15177558
申请日：2016-06-09
发明人： Stefano Sorrentino , George Jöngren
CPC分类号： H04L5/0048 , H04B7/0413 , H04B7/063 , H04B7/0669 , H04B7/0671 , H04L27/2613
摘要： Systems and methods for signaling a pattern of cyclic shifts and orthogonal cover codes for use by a wireless device in multi-layer transmissions are presented. In one exemplary embodiment, a method includes receiving a signal that includes B bits for identifying a reference signal. Each of several available reference signals are defined by a cyclic shift and an orthogonal cover code. Further, the method includes using the B bits to identify the cyclic shift and orthogonal cover code according to pre-determined tables that map each value of the B bits to a pattern of cyclic shift and orthogonal cover code combinations for a multi-layer transmission scheme. The patterns for the multi-layer transmission scheme include first and second patterns based on the same cyclic shifts, but where some, but not all, of the cyclic shifts in the first pattern are associated with the same corresponding orthogonal cover codes in the second pattern. In addition, the method includes transmitting each of the one or more spatially multiplexed data streams using a corresponding reference signal for each data stream.
摘要翻译： 提供用于发信号通知循环移位模式的系统和方法以及无线设备在多层传输中使用的正交覆盖码。 在一个示例性实施例中，一种方法包括接收包括用于识别参考信号的B位的信号。 几个可用参考信号中的每一个由循环移位和正交覆盖码定义。 此外，该方法包括使用B比特来根据将每个B比特的值映射到多层传输方案的循环移位和正交覆盖码组合的模式的预定表来识别循环移位和正交覆盖码 。 用于多层传输方案的模式包括基于相同循环移位的第一模式和第二模式，但是第一模式中的一些但不是全部的循环移位与第二模式中的相同对应的正交覆盖码相关联 。 此外，该方法包括使用每个数据流的相应参考信号来发送一个或多个空间复用数据流中的每一个。
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公开(公告)号：US20160211958A9
公开(公告)日：2016-07-21
申请号：US14307586
申请日：2014-06-18
发明人： Stefano Sorrentino , George Jöngren
CPC分类号： H04L5/0048 , H04B7/0413 , H04B7/063 , H04B7/0669 , H04B7/0671 , H04L27/2613
摘要： Techniques are disclosed for signaling a pattern of cyclic shifts and orthogonal cover codes for use by a wireless device in multi-layer transmissions. In one example method, a signal includes B bits for identifying a reference signal is received, wherein each of several available reference signals is defined by a cyclic shift and an orthogonal cover code. The B bits are used to identify the cyclic shift and orthogonal cover code according to pre-determined tables that map each value of the B bits to a pattern of cyclic shift and orthogonal cover code combinations for a multi-layer transmission scheme. The patterns for the multi-layer transmission scheme include first and second patterns based on the same cyclic shifts, but where some, but not all, of the cyclic shifts in the first pattern are associated with the same corresponding orthogonal cover codes in the second pattern.
摘要翻译： 公开了用于发信号通知循环移位和正交覆盖码的模式以供多层传输中的无线设备使用的技术。 在一个示例性方法中，信号包括用于识别参考信号的B比特，其中几个可用参考信号中的每一个由循环移位和正交覆盖码定义。 B位用于根据将每个B位的每个值映射到多层传输方案的循环移位和正交覆盖码组合的模式的预定表来识别循环移位和正交覆盖码。 用于多层传输方案的模式包括基于相同循环移位的第一模式和第二模式，但是第一模式中的一些但不是全部的循环移位与第二模式中的相同对应的正交覆盖码相关联 。
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公开(公告)号：US09265017B2
公开(公告)日：2016-02-16
申请号：US13806397
申请日：2012-11-13
发明人： Stefano Sorrentino
CPC分类号： H04W52/54 , H04W52/146 , H04W52/244 , H04W52/325 , H04W72/0413
摘要： A method in a wireless device (900) of transmitting uplink reference signals from the wireless device (900) in a wireless communication network (100) to enable network-centric measurements comprises obtaining power control information defining a time-dependent power control setting for said uplink reference signals. The method also comprises determining transmit power values for the uplink reference signals according to the time-dependent power control setting, to provide uplink reference signals of different transmit power values at different time instants. The method further comprises transmitting the uplink reference signals with the determined transmit power values according to the time-dependent power control setting.
摘要翻译： 一种无线设备（900）中的方法，用于在无线通信网络（100）中从所述无线设备（900）发送上行链路参考信号以实现以网络为中心的测量，包括获得功率控制信息，所述功率控制信息定义所述 上行链路参考信号。 该方法还包括根据时间相关功率控制设置确定上行链路参考信号的发射功率值，以在不同的时刻提供不同发射功率值的上行链路参考信号。 该方法还包括根据时间相关的功率控制设置以确定的发射功率值发送上行链路参考信号。
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58.发明授权公开(公告)号：US09253005B2
公开(公告)日：2016-02-02
申请号：US14244332
申请日：2014-04-03
IPC分类号： H04W72/00 , H04L27/26 , H04L5/00 , H04W72/04 , H04B1/7143 , H04B1/04 , H04W76/02 , H04L25/03 , H04L1/00
CPC分类号： H04L5/0051 , H04B1/0475 , H04B1/7143 , H04L1/0029 , H04L5/0048 , H04L25/03343 , H04L27/2613 , H04W72/0413 , H04W72/0466
摘要： A base station initializes pseudo-random sequence generators on which wireless devices base generation of uplink reference signals. The base station determines a first sequence from a first subset of possible initialization sequences for a sequence generator of a first device, and determines a second sequence from a second subset of possible initialization sequences for a sequence generator of a second device. The range of this second subset spans at least the range of the first subset. The base station further encodes the first sequence as a first set of two or more parameters, and encodes the second sequence as a second set of one or more parameters. This second set includes at least one parameter not included in the first set, and comprises fewer bits than the first set. The base station initializes the sequence generators by transmitting the first and second sets of parameters to the devices.
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59.发明授权Signaling of sequence generator initialization parameters for uplink reference signal generation 有权用于上行链路参考信号生成的序列发生器初始化参数的信令公开(公告)号：US09118369B2
公开(公告)日：2015-08-25
申请号：US14244235
申请日：2014-04-03
CPC分类号： H04L5/0051 , H04B1/0475 , H04B1/7143 , H04L1/0029 , H04L5/0048 , H04L25/03343 , H04L27/2613 , H04W72/0413 , H04W72/0466
摘要： A base station initializes pseudo-random sequence generators on which wireless devices base generation of uplink reference signals. The base station determines a first sequence from a first subset of possible initialization sequences for a sequence generator of a first device, and determines a second sequence from a second subset of possible initialization sequences for a sequence generator of a second device. The range of this second subset spans at least the range of the first subset. The base station further encodes the first sequence as a first set of two or more parameters, and encodes the second sequence as a second set of one or more parameters. This second set includes at least one parameter not included in the first set, and comprises fewer bits than the first set. The base station initializes the sequence generators by transmitting the first and second sets of parameters to the devices.
摘要翻译： 基站初始化无线设备基于上行链路参考信号生成的伪随机序列发生器。 基站从第一设备的序列发生器的可能的初始化序列的第一子集确定第一序列，并从第二设备的序列发生器的可能的初始化序列的第二子集确定第二序列。 该第二子集的范围至少跨越第一子集的范围。 基站进一步将第一序列编码为第一组两个或多个参数，并且将第二序列编码为一个或多个参数的第二组。 该第二组包括不包括在第一组中的至少一个参数，并且包括比第一组更少的位。 基站通过将第一和第二组参数发送到设备来初始化序列发生器。
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60.发明申请Signaling of Sequence Generator Initialization Parameters for Uplink Reference Signal Generation 有权用于上行链路参考信号生成的序列发生器初始化参数的信令公开(公告)号：US20140211885A1
公开(公告)日：2014-07-31
申请号：US14244235
申请日：2014-04-03
CPC分类号： H04L5/0051 , H04B1/0475 , H04B1/7143 , H04L1/0029 , H04L5/0048 , H04L25/03343 , H04L27/2613 , H04W72/0413 , H04W72/0466
摘要： A base station initializes pseudo-random sequence generators on which wireless devices base generation of uplink reference signals. The base station determines a first sequence from a first subset of possible initialization sequences for a sequence generator of a first device, and determines a second sequence from a second subset of possible initialization sequences for a sequence generator of a second device. The range of this second subset spans at least the range of the first subset. The base station further encodes the first sequence as a first set of two or more parameters, and encodes the second sequence as a second set of one or more parameters. This second set includes at least one parameter not included in the first set, and comprises fewer bits than the first set. The base station initializes the sequence generators by transmitting the first and second sets of parameters to the devices.
摘要翻译： 基站初始化无线设备基于上行链路参考信号生成的伪随机序列发生器。 基站从第一设备的序列发生器的可能的初始化序列的第一子集确定第一序列，并从第二设备的序列发生器的可能的初始化序列的第二子集确定第二序列。 该第二子集的范围至少跨越第一子集的范围。 基站进一步将第一序列编码为第一组两个或多个参数，并且将第二序列编码为一个或多个参数的第二组。 该第二组包括不包括在第一组中的至少一个参数，并且包括比第一组更少的位。 基站通过将第一和第二组参数发送到设备来初始化序列发生器。
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