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81.发明公开
公开(公告)号：EP3066878A1
公开(公告)日：2016-09-14
申请号：EP14809121.8
申请日：2014-11-10
发明人： KOORAPATY, Havish , LARSSON, Daniel
IPC分类号： H04W56/00
CPC分类号： H04W56/0015 , H04L5/0007 , H04W24/10 , H04W56/0035 , H04W72/0426 , H04W72/085 , H04W88/08
摘要： Systems and methods related to time and frequency synchronization of a base station in a cellular communications network are disclosed. In some embodiments, a method of operation of a synchronizing base station comprises selecting a first base station for frequency synchronization and a second base station for time synchronization, where the second base station can be different than the first base station selected for frequency synchronization. The method further comprises performing frequency synchronization using a signal transmitted from a radio interface of the first base station and performing time synchronization using a signal transmitted from a radio interface of the second base station. In this manner, the synchronizing base station is enabled to independently select the first and second base stations used for frequency and time synchronization, respectively.
摘要翻译： 公开了与蜂窝通信网络中的基站的时间和频率同步相关的系统和方法。 在一些实施例中，同步基站的操作方法包括选择用于频率同步的第一基站和用于时间同步的第二基站，其中第二基站可以不同于为频率同步选择的第一基站。 该方法还包括使用从第一基站的无线电接口发送的信号来执行频率同步，并且使用从第二基站的无线电接口发送的信号来执行时间同步。 以这种方式，同步基站能够分别独立地选择用于频率和时间同步的第一和第二基站。
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公开(公告)号：EP1779556B1
公开(公告)日：2016-05-25
申请号：EP05773598.7
申请日：2005-08-08
发明人： KOORAPATY, Havish
IPC分类号： H04W56/00
CPC分类号： H04W56/0045 , H04J3/0682
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83.发明公开FLEXIBLE SPECTRUM SUPPORT IN CELLULAR WIRELESS COMMUNICATIONS 审中-公开灵活的SPEKTRUMSUNTERSTÜTZUNG在DRAHTLOSEN FUNKKOMMUNIKATIONEN
公开(公告)号：EP2915355A1
公开(公告)日：2015-09-09
申请号：EP13792990.7
申请日：2013-11-01
IPC分类号： H04W16/10
CPC分类号： H04L5/0098 , H04L5/0048 , H04W16/14 , H04W72/00 , H04W72/0453
摘要： Systems and methods for flexible spectrum, or bandwidth, support in a cellular communications network are disclosed. In one embodiment, a base station for a cellular communications network is configured to transmit a non-standardized bandwidth carrier and information that identifies a standardized bandwidth and additional information that, together with the information that identifies the standardized bandwidth, defines a non-standardized bandwidth of the non-standardized bandwidth carrier. In one embodiment, the additional information defines a bandwidth adjustment for the standardized bandwidth that defines the non-standardized bandwidth. In one embodiment, the bandwidth adjustment is a symmetric bandwidth restriction. In another embodiment, the bandwidth adjustment is an asymmetric bandwidth restriction. In yet another embodiment, the bandwidth adjustment is a symmetric bandwidth expansion. In yet another embodiment, the bandwidth adjustment is an asymmetric bandwidth expansion.
摘要翻译： 公开了用于蜂窝通信网络中的灵活频谱或带宽支持的系统和方法。 在一个实施例中，用于蜂窝通信网络的基站被配置为发送非标准带宽载波和识别标准带宽的信息以及附加信息，其与标识标准化带宽的信息一起定义非标准带宽 的非标准带宽载波。 在一个实施例中，附加信息定义用于定义非标准带宽的标准化带宽的带宽调整。 在一个实施例中，带宽调整是对称带宽限制。 在另一实施例中，带宽调整是非对称带宽限制。 在另一个实施例中，带宽调整是对称带宽扩展。 在另一个实施例中，带宽调整是非对称带宽扩展。
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公开(公告)号：EP2856800A1
公开(公告)日：2015-04-08
申请号：EP12877703.4
申请日：2012-05-30
IPC分类号： H04W36/00
摘要： The disclosure relates to a method (30) performed in second network node (7
1 ,..., 7
n ) of a communication system (1, 1') adapted for wireless communication and comprising a first network node (3
1 , 3
2 ) adapted to operate in a mode of operation according to a first communication standard and a user device (10) adapted to operate according to the first communication standard. The second network node (7
1 ,..., 7
n ) is adapted to operate in a mode of operation according to a second communication standard, and adapted to receive uplink signaling in accordance with the first communication standard. The method (30) comprises receiving (31) an access request from the user device (10) in accordance with the first communication standard, and enabling (32) a communication channel for the user device (10) by relaying the received access request to the first network node (3
1 , 3
2 ) or by switching from the mode of operation according to the second communication standard, to a mode of operation according to the first communication standard.-
公开(公告)号：EP2266275B1
公开(公告)日：2014-08-06
申请号：EP09731428.0
申请日：2009-04-09
CPC分类号： H04L5/0048 , H04L5/0007 , H04L5/005 , H04L5/0051 , H04L27/2613 , H04W72/0446
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公开(公告)号：EP2208315B1
公开(公告)日：2014-02-26
申请号：EP08794147.2
申请日：2008-08-14
CPC分类号： H04L5/0007 , H04J11/0069 , H04L27/0008 , H04L27/2601
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公开(公告)号：EP2638764A1
公开(公告)日：2013-09-18
申请号：EP11791334.3
申请日：2011-10-24
CPC分类号： H04W72/121 , H04W72/1289
摘要： An apparatus (20) is associated with a telecommunications node (N) which serves a service area (S) which belongs to one set of plural sets of service areas comprising a network. The apparatus (20) divides a time resource for the node into plural phases in coordinated manner with other service areas. The apparatus (20) further generates a schedule for transmission/reception of user traffic for wireless terminals served by the node for plural consecutive phases. The schedule is generated so that during the plural consecutive phases the node can transmit and receive scheduled user traffic before receiving in the plural consecutive phases scheduling information from another node which serves another set of service areas.
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公开(公告)号：EP2422480A2
公开(公告)日：2012-02-29
申请号：EP10726577.9
申请日：2010-04-23
CPC分类号： H04L49/9094 , H04L1/0003 , H04L1/0009 , H04L5/0007 , H04L5/0042 , H04L5/0046 , H04L5/006 , H04L43/0894 , H04L43/16 , H04L47/70 , H04L47/74 , H04L47/781 , H04W28/065 , H04W28/22 , H04W72/044 , H04W72/048 , H04W72/12 , Y02D70/146
摘要： A base station in an OFDMA system which determines a modulation and coding scheme to use for a packet of a certain size to be transmitted by a Mobile Station. The base station schedules transmissions by mobile stations and transmits packets. The base station includes a processing unit which determines a number of time-frequency resources required to transmit the packet for a modulation and coding scheme, determines an SINR based on the number of time-frequency resources used and available power at the mobile station, determines a transmission rate as a ratio of the packet size transmitted to the number of time-frequency resources used, sets a rate to zero if the determined SINR is lower than a threshold SINR required for the modulation and coding scheme, and selects the modulation and coding scheme with a highest transmission rate. The base station includes a memory storing modulation and coding schemes.
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89.发明授权
公开(公告)号：EP2195984B1
公开(公告)日：2011-04-27
申请号：EP08835616.7
申请日：2008-09-11
CPC分类号： H04L27/0008 , H04L1/0083 , H04L1/1607 , H04L5/0007 , H04L5/0091 , H04L25/0204
摘要： A radio access network (RAN) (20) comprise a base station (28) and a wireless terminal (30). The base station 28 comprises a transceiver (38) and a frame handler (40), the wireless terminal (30) comprises a transceiver (48) and a wireless terminal frame handler (50). The frame handlers (40, 50) handle a enhanced frame F having enhanced frame structure. At least a down link portion of the frame is formatted and handled in a manner whereby the frame can be perceived as a first format type of frame if the wireless terminal is a first type of wireless terminal and perceived as an enhanced or second format type of frame if the wireless terminal is a second type of wireless terminal. The frame handler configures the frame as plural sub frames, each sub frame having a down link burst followed by an up link burst. The frame is preferably configured to afford the second type of wireless terminal sufficient time to develop an acknowledgement for a message transmitted in a down link burst, the acknowledgement being sent to the base station in an up link burst which is within one frame length of the message.
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公开(公告)号：EP2195984A2
公开(公告)日：2010-06-16
申请号：EP08835616.7
申请日：2008-09-11
CPC分类号： H04L27/0008 , H04L1/0083 , H04L1/1607 , H04L5/0007 , H04L5/0091 , H04L25/0204
摘要： A radio access network (RAN) (20) comprise a base station (28) and a wireless terminal (30). The base station 28 comprises a transceiver (38) and a frame handler (40), the wireless terminal (30) comprises a transceiver (48) and a wireless terminal frame handler (50). The frame handlers (40, 50) handle a enhanced frame F having enhanced frame structure. At least a down link portion of the frame is formatted and handled in a manner whereby the frame can be perceived as a first format type of frame if the wireless terminal is a first type of wireless terminal and perceived as an enhanced or second format type of frame if the wireless terminal is a second type of wireless terminal. The frame handler configures the frame as plural sub frames, each sub frame having a down link burst followed by an up link burst. The frame is preferably configured to afford the second type of wireless terminal sufficient time to develop an acknowledgement for a message transmitted in a down link burst, the acknowledgement being sent to the base station in an up link burst which is within one frame length of the message.
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