公开(公告)号：EP2959736A1

公开(公告)日：2015-12-30

申请号：EP13736988.0

申请日：2013-06-17

申请人： Telefonaktiebolaget L M Ericsson (Publ)

发明人： NAMMI, Sairamesh

IPC分类号： H04W72/12 ,  H04W72/04 ,  H04W72/08 ,  H04W84/04 ,  H04B1/7107 ,  H04J11/00 ,  H04W48/12

CPC分类号： H04W28/0236 ,  H04J11/003 ,  H04J11/0053 ,  H04L1/00 ,  H04L27/2601 ,  H04W48/12 ,  H04W72/042 ,  H04W72/082 ,  H04W84/045

摘要： In MIMO scenarios, a mobile terminal (1400) can be exposed to signals intended for wireless terminals (640) other than the mobile terminal (1400). If the mobile terminal (1400) is capable of performing interference cancellation, then a network node (1000), such as a base station (610, 620) or RNC (630), can provide the mobile terminal (1400) with interference information so that the mobile terminal (1400) can efficiently cancel interferences due to these interfering signals. The network node (1000) may provide the mobile terminal (1400) with interference information if it determines that mobile terminal (1400) will benefit from the information. The mobile terminal (1400) may cancel the interfering signals from the received signal based on the interference information.

公开(公告)号：EP2853055A1

公开(公告)日：2015-04-01

申请号：EP13717586.5

申请日：2013-03-26

申请人： Telefonaktiebolaget L M Ericsson (PUBL)

发明人： NAMMI, Sairamesh ,  GÖRANSSON, Bo ,  LARSSON, Erik

IPC分类号： H04L5/00 ,  H04L25/02

CPC分类号： H04L5/005 ,  H04L25/0224

摘要： A radio network node (28) comprises a transmitter/receiver (48, 82, 93) configured to communicate over an air interface (32) with a wireless terminal (30); a scheduler (46, 84); and a order signal determination means (46, 62, 84). The scheduler (46, 84) schedules pilot signals, including common pilot signals transmitted for channel estimation, for transmission over the air interface to the wireless terminal. The order signal determination means (46, 62, 84) is configured to make a selective determination whether additional pilot signals for data demodulation are also to be transmitted to the wireless terminal (30) in addition to the common pilot signals transmitted for the channel estimation. The wireless terminal (30) comprises a transmitter and receiver (50, 101, 112) and pilot selection means (68). The pilot selection means (68) is configured to make a determination regarding which pilot signals transmitted by the radio network node are to be utilized by the wireless terminal. The pilot signals transmitted by the radio network node include common pilot signals transmitted for channel estimation and additional pilot signals transmitted for data demodulation.

公开(公告)号：EP2826314A2

公开(公告)日：2015-01-21

申请号：EP13761299.0

申请日：2013-03-15

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： SHI, Nianshan ,  KONUSKAN, Cagatay ,  NAMMI, Sairamesh

IPC分类号： H04W52/32 ,  H04B7/04

CPC分类号： H04B7/0426 ,  H04B7/0413 ,  H04B7/0684 ,  H04W52/325

摘要： Embodiments of the present disclosure provide methods and apparatus for configuring additional CPICHs, e.g. third CPICH, fourth CPICH, etc., to support MIMO transmissions of rank three or higher. The additional CPICHs may be configured with two or more power levels. A radio network controller (RNC) sends configuration information for the additional CPICHs to a serving base station in a cell to configure the additional CPICHs. The additional CPICHs can be configured to have a fixed power level, or multiple power levels. When the additional CPICHs are configured with multiple power levels, the base station can select the appropriate power level for each CPICH in dependence on current scheduling decisions in order to reduce inference.

公开(公告)号：EP2742641B1

公开(公告)日：2016-01-20

申请号：EP13708929.8

申请日：2013-01-24

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： NAMMI, Sairamesh ,  CHAPMAN, Thomas ,  GÖRANSSON, Bo

IPC分类号： H04B7/08 ,  H04L5/00 ,  H04B7/06 ,  H04L25/02 ,  H04B7/04

CPC分类号： H04L5/0048 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0486 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0626 ,  H04B7/0684 ,  H04B7/08 ,  H04L5/005 ,  H04L5/0051 ,  H04L25/0206 ,  H04L25/0226

公开(公告)号：EP2965574A1

公开(公告)日：2016-01-13

申请号：EP14704698.1

申请日：2014-01-17

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： NAMMI, Sairamesh ,  CURRAN, Mark ,  SHI, Nianshan ,  LIDIAN, Namir

IPC分类号： H04W52/32 ,  H04W52/42 ,  H04W52/38

CPC分类号： H04W52/42 ,  H04W52/325 ,  H04W52/386 ,  H04W84/045

摘要： A method in a network node for sending a pilot power value in a heterogeneous mobile communications network. The heterogeneous mobile communications network comprises a second set of base station nodes selected to operate in a Multiple Input Multiple Output, MIMO, -mode. The second set of base station nodes share a cell identity and are deployed within a coverage area. The network node computes (802) a pilot power value to be applicable when one or more mobile devices in the coverage area evaluates receipt of one or more Secondary Common Pilot Channels, S-CPICH, from a transmitter in said second set of base station nodes, wherein the computing is based on a measure indicative of a transmission power of the second set of base stations. The network node sends a signal to a radio network controller. The signal comprises the computed pilot power value, and enables the one or more mobile devices to be configured for MIMO operation.

公开(公告)号：EP2923451A1

公开(公告)日：2015-09-30

申请号：EP12888752.8

申请日：2012-11-21

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： NAMMI, Sairamesh

IPC分类号： H04B7/06

CPC分类号： H04B7/0486 ,  H04B7/0417 ,  H04L5/0048 ,  H04L25/03343 ,  H04L25/03891

摘要： A Network Node, a UE operable in a MIMO system and respective methods performed by the Network Node and UE are provided for determining a precoder of a Codebook to use for transmissions to the UE, wherein the Network Node comprises at least two transmitting antennas corresponding to two individual Ranks. The Network Node determines (110) which precoders the UE shall evaluate, and transmits (120), to the UE, the determined precoders the UE shall evaluate. The Network Node receives (130), from the UE, a PMI, associated with one of the determined precoders, which the UE requests the Network Node to use for transmission to the UE; and the Network Node transmits (140), to the UE, data using the requested precoders

公开(公告)号：EP2901596A1

公开(公告)日：2015-08-05

申请号：EP13731986.9

申请日：2013-05-30

申请人： Telefonaktiebolaget L M Ericsson (Publ)

发明人： NAMMI, Sairamesh ,  LIDIAN, Namir

IPC分类号： H04L1/16

CPC分类号： H04L5/0048 ,  H04B7/0417 ,  H04B7/0478 ,  H04L1/1621 ,  H04L1/1822 ,  H04L1/1893 ,  H04L5/0055 ,  H04W72/0413

摘要： There is provided a method performed by a User Equipment, UE, for encoding Hybrid Automatic Repeat Request, HARQ, Acknowledgements, ACK/NACK, in a multi-antenna wireless communications system. The method comprises the step (S1) of bundling, also referred to as co-representing, a HARQ-ACK/NACK to be sent in response for a transport block of information with a HARQ-ACK/NACK to be sent in response for another transport block of information, when more than two transport blocks of information are used. The method also comprises the step (S2) of encoding the bundled HARQ-ACK/NACK information.

公开(公告)号：EP2862306A1

公开(公告)日：2015-04-22

申请号：EP13731984.4

申请日：2013-05-29

申请人： Telefonaktiebolaget L M Ericsson (Publ)

发明人： NAMMI, Sairamesh ,  LIDIAN, Namir ,  JONSSON, Anders

IPC分类号： H04L1/00 ,  H04L1/18 ,  H04L1/16

CPC分类号： H04L5/0055 ,  H04B7/0413 ,  H04L1/0025 ,  H04L1/0075 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1819 ,  H04L1/1822 ,  H04L1/1896

摘要： A method of operating a node of a MIMO network may include transmitting first and second HARQ IDs over a downlink signaling channel to a wireless terminal for a first MIMO TTI. The first HARQ ID is mapped to a first MIMO layer, and the second HARQ ID is mapped to second and third MIMO layers. First, second, and third data blocks aretransmitted over the first, second, and third MIMO layers to the wireless terminal for the first MIMO TTI. Responsive to receiving an ACK message associated with the first HARQ ID, a fourth data block is transmitted over the first MIMO layer to the wireless terminal for a second MIMO TTI. Responsive to receiving a NACK message associated with the second HARQ process identification, the second and third data blocks are retransmitted over the second and third MIMO layers to the wireless terminal for the second MIMO TTI.

公开(公告)号：EP2856825A2

公开(公告)日：2015-04-08

申请号：EP13794601.8

申请日：2013-05-20

申请人： Telefonaktiebolaget L M Ericsson (PUBL)

发明人： GÖRANSSON, Bo ,  HULTELL, Johan ,  NAMMI, Sairamesh ,  BERGMAN, Johan

IPC分类号： H04W72/04 ,  H04W72/00 ,  H04W72/12

CPC分类号： H04W76/27 ,  H04L1/1671 ,  H04L1/1887 ,  H04L5/0073 ,  H04L2001/0093 ,  H04W48/12 ,  H04W76/40

摘要： A radio base station communicates with UEs on a shared control channel in a cell coverage area. A common control channel order, for transmission over the shared control channel for a group of multiple UEs in the cell, is associated with a common control channel order identifier and transmitted in the cell over the shared control channel. A UE in a shared cell coverage area receives and processes the common control channel order signal transmitted to the group of multiple UEs to detect the common control channel signal identifier. If the UE determines that common control channel signal identifier matches a common control channel signal identifier previously configured for or stored in each of the UEs in the group, then the UE processes the common control channel order and performs one or more actions in response to the processed common control channel order.

公开(公告)号：EP2813021A2

公开(公告)日：2014-12-17

申请号：EP13746308.9

申请日：2013-02-04

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： NAMMI, Sairamesh ,  JONSSON, Anders ,  OVESJÖ, Fredrik ,  LIDIAN, Namir

IPC分类号： H04L1/18

CPC分类号： H04L1/08 ,  H04B7/0413 ,  H04B7/0486 ,  H04L1/0071 ,  H04L1/1657 ,  H04L1/1671 ,  H04L1/1845 ,  H04L1/1887 ,  H04L1/1893 ,  H04L1/1896 ,  H04L5/0023 ,  H04L5/0042 ,  H04L5/0055 ,  H04L5/006

摘要： A method of transmitting data from a wireless network node over a MIMO channel to a wireless terminal may include transmitting first and second transport data blocks to the wireless terminal over the MIMO channel using a first time-frequency-resource-element (TFRE). Responsive to receiving a NACK message from the wireless terminal corresponding to the first and second transport data blocks transmitted using the first TFRE, the first and second transport data blocks may be retransmitted to the wireless terminal over the MIMO channel using a second TFRE.

摘要翻译： 一种通过MIMO信道从无线网络节点向无线终端发送数据的方法可以包括使用第一时频资源元素（TFRE）在MIMO信道上向无线终端发送第一和第二传输数据块。 响应于从使用第一TFRE发送的第一传输数据块和第二传输数据块对应的无线终端接收到NACK消息，可以使用第二TFRE在MIMO信道上将第一传输数据块和第二传输数据块重传到无线终端。