公开(公告)号：EP2974488A1

公开(公告)日：2016-01-20

申请号：EP13877707.3

申请日：2013-03-14

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： LIU, Jinhua ,  KAZMI, Muhammad

IPC分类号： H04W72/00

CPC分类号： H04W72/085 ,  H04B7/2656 ,  H04W24/08 ,  H04W52/243 ,  H04W52/365 ,  H04W72/0413 ,  H04W72/0426 ,  H04W72/0446 ,  H04W72/082

摘要： Methods and radio network nodes (BS1, BS2) for alleviating interference on downlink radio signals in a victim User Equipment, UE (T1, T2), caused by uplink transmission from an aggressor UE (T2, T1). The interference occurs during a flexible subframe in which the direction of signal transmission is variable between uplink and downlink in different radio frames. A first radio network node (BS1) detects (4:1) that a first UE (T1) that is served by the first radio network node (BS1) is one of the victim and aggressor UEs. The first radio network node (BS1) identifies (4:2) a second radio network node (BS2) employing a subframe scheme such that uplink transmission from the aggressor UE may overlap at least partly with downlink reception in the victim UE during the flexible subframe. The first radio network node (BS1) sends (4:3) a notification to the second radio network node, indicating that the first UE is served by the first radio network node. The second radio network node (BS2) is thereby triggered to execute (4:5) an interference mitigation action for alleviating the interference when serving a second UE (T2) being the other one of the victim and aggressor UEs.

摘要翻译： 方法和用于减轻下行链路上的无线电信号的干扰成牺牲用户设备的无线电网络节点（BS1，BS2），UE（T1，T2）从UE通过上行链路传输引起的到干扰（T2，T1）。 干扰的灵活子帧中哪个信号传输的方向是不同的无线电帧的上行链路和下行链路之间的可变期间发生。 第一无线电网络节点（BS1）检测（4：1）那样的第一UE（T1）确实是由第一无线电网络节点（BS1）送达是受害者和攻击者UE中的一个。 第一无线电网络节点（BS1）标识（4：2）使用的子帧方式的第二无线电网络节点（BS2）检查的确从侵略者上行链路传输的UE可以在灵活子帧期间与在受害者UE的下行链路接收重叠至少部分地 ， 第一无线电网络节点（BS1）发送（4：3）到所述第二无线电网络节点的通知时，指示所做的第一UE由所述第一无线电网络节点服务。 所述第二无线电网络节点（BS2）由此触发来执行（4：5），以干扰缓解动作来减轻干扰。当服务的第二UE（T2）是所述受害者中的另一个和攻击者UE。

公开(公告)号：EP2923510A1

公开(公告)日：2015-09-30

申请号：EP12888839.3

申请日：2012-11-26

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： LI, Shaohua ,  GUO, Zhiheng ,  LIU, Jinhua ,  SONG, Xinghua ,  ZHANG, Zhan

IPC分类号： H04W24/08

CPC分类号： H04B17/345 ,  H04L5/0032 ,  H04W24/08 ,  H04W52/143 ,  H04W52/241 ,  H04W52/243 ,  H04W72/0446

摘要： A first radio network node (110) and a method therein for measuring interference as well as a second radio network node (120) and a method therein for enabling the first radio network node to measure interference are disclosed. The first radio network node (110) obtains (201) configuration information for indicating a designated subframe in which a reference signal for measurement of the interference is to be transmitted by the second radio network node (120). The second radio network node (120) obtains (202) configuration information for configuring a designed subframe for transmission of a reference signal. The first radio network node (110) receives (205), in the designated subframe indicated by the configuration information, the reference signal transmitted by the second radio network node (120). The first radio network node (110) determines (206) a value of the interference based on the reference signal.

摘要翻译： 用于测量第一无线电网络节点和第二无线电网络节点之间的干扰的第一无线电网络节点获得指示哪个子帧是柔性子帧的配置信息，其中用于测量干扰的参考信号将被第二无线电网络发送 节点。 第一无线电网络节点基于测量第一无线电网络节点和第二无线电网络节点之间的干扰的必要性来确定是否将灵活子帧配置为上行链路子帧。 当需要测量干扰时，第一无线电网络节点将灵活子帧配置为上行链路子帧，并且在上行链路子帧中接收用于测量来自第二无线电网络节点的干扰的参考信号。

公开(公告)号：EP2263324B1

公开(公告)日：2015-02-25

申请号：EP08741895.0

申请日：2008-04-09

申请人： Telefonaktiebolaget L M Ericsson (PUBL)

发明人： LIU, Jinhua ,  MIAO, Qingyu

IPC分类号： H04B1/69 ,  H04B7/26 ,  H04B17/00 ,  H04B1/7097 ,  H04W52/12 ,  H04W52/14 ,  H04W52/24

CPC分类号： H04B1/7097 ,  H04B17/336 ,  H04W52/12 ,  H04W52/146 ,  H04W52/243

公开(公告)号：EP2820903A1

公开(公告)日：2015-01-07

申请号：EP12869716.6

申请日：2012-02-28

申请人： Telefonaktiebolaget L M Ericsson (Publ)

发明人： GU, Xinyu ,  ZHANG, Zhang ,  LIU, Jinhua

IPC分类号： H04W72/04

CPC分类号： H04L5/0032 ,  H04W72/082 ,  H04W72/1231

摘要： The present application discloses a method for mitigating inter-cell interference (ICI) by scheduling user equipments. The method comprises estimating inter-cell interference tolerance of each of at least one neighboring cell during uplink transmission of the user equipment; and coordinating uplink scheduling of the user equipment in accordance with the inter-cell interference tolerance. The present application also discloses a base station, a radio network controller and relevant signaling for mitigating inter-cell interference (ICI) by scheduling user equipments.

摘要翻译： 本申请公开了一种通过调度用户设备来减轻小区间干扰（ICI）的方法。 该方法包括在用户设备的上行链路传输期间估计至少一个相邻小区中的每一个的小区间干扰容限; 根据小区间干扰容限协调用户设备的上行调度。 本申请还公开了通过调度用户设备来减轻小区间干扰（ICI）的基站，无线电网络控制器和相关信令。

公开(公告)号：EP2777352A1

公开(公告)日：2014-09-17

申请号：EP11875364.9

申请日：2011-11-11

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： LIU, Jinhua ,  KAZMI, Muhammad ,  MIAO, Qingyu

IPC分类号： H04W72/10

CPC分类号： H04W72/10 ,  H04W72/1242 ,  H04W72/1273

摘要： The present disclosure relates to a method of coordinated scheduling of a downlink transmission flow from a first radio network node (such as a radio network controller RNC) to a user equipment UE in a second radio network node (such as a Node B, an eNode B, a base station BS), the method comprising a step of : scheduling the downlink transmission flow so that the in-sequence delivery of the received data blocks can be kept in an acceptable level in the UE by adjusting a scheduling priority of the downlink transmission flow in the second radio network node. The method may further comprise steps of: estimating one or more buffer-related parameters based on buffered data for the downlink transmission flow from the first radio network node; and determining, based on the estimated one or more buffer-related parameter and/or one or more parameters associated with the operation status of the second radio network node, if the in-sequence delivery of the received data blocks to higher layers can be in an acceptable level in the UE.

公开(公告)号：EP2700262A1

公开(公告)日：2014-02-26

申请号：EP12773827.6

申请日：2012-02-29

申请人： Telefonaktiebolaget L M Ericsson (PUBL)

发明人： ZHANG, Zhang ,  LIU, Jinhua

IPC分类号： H04W28/08

CPC分类号： H04W28/085 ,  H04B7/0404 ,  H04B7/0617 ,  H04B7/0634 ,  H04W16/28 ,  H04W28/08

摘要： The present disclosure provides an uplink intra-frequency load balancing method. The uplink intra-frequency load balancing can be performed by adjusting a beam direction of a User Equipment UE. For each of UEs, the method comprises steps of: determining a cell load level of each cell based on an uplink load measurement received from base stations of a plurality of cells; determining a beam-forming capability of the UE based on a beam-forming gain of the UE; and calculating a cell balancing parameter for each of the plurality of cells, according to a common pilot channel CPICH quality report measured by the UE, the cell load levels of the plurality of cells and the beam-forming capability of the UE, so as to determine a beam-forming control cell towards which the beam direction of the UE is directed, the beam-forming control cell being a cell which has an optimal cell balancing parameter among the plurality of cells. The present disclosure further provides, for a UE which supports a CLBF mode but is not in the CLBF mode, a method for selectively activating the CLBF mode so as to enhance the effect of load balancing. The present further provides an uplink intra-frequency load balancing apparatus.

公开(公告)号：EP2589247A1

公开(公告)日：2013-05-08

申请号：EP11741311.2

申请日：2011-06-29

申请人： Telefonaktiebolaget L M Ericsson (PUBL)

发明人： LIU, Jinhua ,  MIAO, Qingyu ,  KAZMI, Muhammad ,  HULTELL, Johan

IPC分类号： H04W72/04 ,  H04B7/02 ,  H04W88/06 ,  H04W36/18

CPC分类号： H04W72/0413 ,  H04B7/022 ,  H04B7/0404 ,  H04B7/0417 ,  H04B7/0617 ,  H04W36/18 ,  H04W52/40 ,  H04W88/10 ,  H04W92/12

摘要： In deployments where there is a mixture of new Node Bs capable of uplink multi- antenna transmission and legacy Node Bs not capable of uplink multi-antenna transmission some embodiments described herein enable a network node (e.g. a radio network controller, RNC) to configure an uplink control channel (e.g. dedicated physical control channel, DPCCH) to be decodable by both the new and the legacy Node 8s when the UE operates in uplink multi-antenna transmission.

公开(公告)号：EP2294867A1

公开(公告)日：2011-03-16

申请号：EP08767216.8

申请日：2008-06-24

申请人： Telefonaktiebolaget L M Ericsson (PUBL)

发明人： LIU, Jinhua ,  HU, Rong ,  WAGER, Stefan

IPC分类号： H04W36/30

CPC分类号： H04W36/30 ,  H04W36/0088

摘要： The present invention related to a method and arrangement for performing handover decisions in a communication network, wherein the handover decisions are related to user equipment receiving packet data on a shared downlink traffic channel from a current serving cell., The method comprises the steps of providing (381, 382) a quality measure related to the shared downlink traffic channel of the serving cell and to at least one target cell, determining (383) a relation between the quality measure related to the shared downlink traffic channel of the serving cell and the target cell, and performing the handover decision based on said determined relation and based on the size of the provided quality measure related to the shared downlink traffic channel of the serving cell.

公开(公告)号：EP2982068A1

公开(公告)日：2016-02-10

申请号：EP14719118.3

申请日：2014-04-05

申请人： Telefonaktiebolaget L M Ericsson (Publ)

发明人： LI, Shaohua ,  GUO, Zhiheng ,  FAN, Rui ,  LIU, Jinhua ,  SONG, Xinghua ,  ERIKSSON, Erik

IPC分类号： H04L1/00 ,  H04L1/18 ,  H04L5/00

CPC分类号： H04L1/1864 ,  H04L1/1854 ,  H04L5/0055 ,  H04L5/14 ,  H04L5/1469 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446

摘要： The present disclosure relates to a method used in a User Equipment (UE) for reporting Hybrid Automatic Repeat Request (HARQ) acknowledgement (ACK)/non-acknowledgement (NACK) for Physical Downlink Shared Channels (PDSCHs) in dynamic time division duplex (TDD) configurations. In the method, a plurality of PDSCHs are received in DownLink (DL) subframes associated with an UpLink (UL) subframe and indicated by a DL reference TDD configuration. The DL subframes are divided into a first subset of DL subframes and a second subset of DL subframes. The first subset of DL subframes is also indicated by an UL reference TDD configuration. A first set of Physical Uplink Control Channel (PUCCH) resource indices are assigned based on resources used in transmission of Physical Downlink Control Channels (PDCCHs) corresponding to the PDSCHs received in the DL subframes of the first subset of DL subframes. A second set of PUCCH resource indices are assigned based on resources used in transmission of PDCCHs corresponding to the PDSCHs received in the DL subframes of the second subset of DL subframes. For each of the received PDSCHs, HARQ ACK/NACK is reported by using PUCCH resources in an order of the assigned first set of PUCCH resource indices for PDSCHs received in the DL subframes of the first subset of DL subframes and in an order of the assigned second set of PUCCH resource indices for PDSCHs received in the DL subframes of the second subset of DL subframes. The present disclosure also relates to a UE and BS for respectively reporting and receiving HARQ ACK/ NACK for PDSCHs in TDD configurations.

公开(公告)号：EP2936877A1

公开(公告)日：2015-10-28

申请号：EP12890628.6

申请日：2012-12-19

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： FAN, Rui ,  LIU, Jinhua ,  QIAN, Yu ,  RAHMAN, Muhammad Imadur

IPC分类号： H04W36/30

CPC分类号： H04W36/0055 ,  H04L5/14 ,  H04W36/30

摘要： The present disclosure relates to a method in a User Equipment (UE) for use in handover from its serving base station to a neighboring base station. The method includes: performing one or more downlink quality measurements of the neighboring base station on one or more downlink subframes in a TDD configuration of the neighboring base station to obtain a downlink quality measurement result; and transmitting said downlink quality measurement result to the serving base station for enabling the serving base station to determine whether to trigger the handover or not.