-
公开(公告)号：AU2013240631B2
公开(公告)日：2016-06-09
申请号：AU2013240631
申请日：2013-02-15
Applicant: ERICSSON TELEFON AB L M
Inventor： JONSSON ANDERS , NAMMI SAIRAMESH , GORANSSON BO , LIDIAN NAMIR , OVESJO FREDRIK
Abstract: A method of operating a wireless network node may include transmitting a first MIMO downlink communication to a wireless terminal according to a first MIMO rank, and receiving at least one HARQ ACK/NACK, message from the wireless terminal corresponding to the first MIMO downlink communication. A report may be received from the wireless terminal identifying a reported MIMO rank, and a second MIMO rank may be selected for a second MIMO downlink communication responsive to the at least one HARQ ACK/NACK message. The second MIMO downlink communication may be transmitted to the wireless terminal according to the second MIMO rank.
-
公开(公告)号：CA2867571A1
公开(公告)日：2013-09-19
申请号：CA2867571
申请日：2013-02-13
Applicant: ERICSSON TELEFON AB L M
Inventor： NAMMI SAIRAMESH , LIDIAN NAMIR , JONSSON ANDERS , OVESJO FREDRIK
Abstract: Disclosed is a base station(130) configured to control transmission of data streams from the base station to a user equipment, UE, in a wireless communication system.The base station (130) provides transmission of at least three data streams.The base station further provides only two different hybrid automatic retransmission request, HARQ, downlink processes (703ab, 704ab). The base station comprises a mapping unit (702) for mapping Medium Access Control enhanced high speed, MAC-ehs, service data units, SDUs belonging to two different data streams of the at least three data streams to the same of the two different HARQ downlink processes. The MAC-ehs SDUs belonging to two different data streams are of equal size. Disclosed is also a corresponding method performed by a base station (130).
-
公开(公告)号：CA2331997C
公开(公告)日：2011-04-12
申请号：CA2331997
申请日：1999-05-07
Applicant: ERICSSON TELEFON AB L M
Inventor： FRANK GEORG , GRANZOW WOLFGANG , GUSTAFSSON MARIA , OLOFSSON HENRIK , OVESJO FREDRIK
Abstract: An uplink common physical channel (random access channel) frame structure is disclosed with a separate preamble and data portion. The preamble is used by a base station to detect that a mobile station is attempting a random access request. The data portion of the channel includes user data, and pilot symbols that provide energy for channel estimation during reception of the data portion. A guard interval (TG) is preferably inserted between the preamble and data portion of the frame, which enables data detection to occur during an idle period. As such, the frame structures for both the common physical (random access) uplink channel and dedicated physical (traffic) uplink channel are compatible.
-
公开(公告)号：MY124697A
公开(公告)日：2006-06-30
申请号：MYPI9901711
申请日：1999-04-29
Applicant: ERICSSON TELEFON AB L M
Inventor： GUSTAFSSON MARIA , OLOFSSON HENRIK , OVESJO FREDRIK , FRANK GEORG , GRANZOW WOLFGANG
IPC: H04B1/7115 , H04B7/26 , H04J11/00 , H04J13/00 , H04W74/08
Abstract: AN UPLINK COMMON PHYSICAL CHANNEL (RANDOM ACCESS CHANNEL) FRAME STRUCTURE IS DISLOSED WITH A SEPATED PREAMBLE AND DATA PORTION. TEH PREAMBLE IS USED BY A BASE STATION TO AMOBILE STATION IS ATTEMPTING A RANDOM ACCESS REQUEST. THE DATA POTION OF THE CHANNEL INCLUDES USER DATA, AND PILOT SYMBOLS THAT PROVIDE ENERGY FOR CHANNEL ESTIMATION DURING OF THE DATA POTION. A GUSRD INTERVAL (TG) IS PREFERABLY INSERTED BETWEEN THE PREAMBLE AND DATA POTION OF THE FRAME, WHICH ENABLES DATA DETECTION TO OCCUR DURING AN IDLE PERIOD. AS SUCH , THE FRAME STRUCTURES FOR BOTH THE COMMON PHYSICAL (RANDOM ACCESS) UPLINK CHANNEL AND DEDICATED PHYSICAL (TRAFFIC) UPLINK CHANNEL ARE COMPATIBLE.
-
公开(公告)号：AU766788B2
公开(公告)日：2003-10-23
申请号：AU4538299
申请日：1999-05-07
Applicant: ERICSSON TELEFON AB L M
Inventor： FRANK GEORG , GRANZOW WOLFGANG , GUSTAFSSON MARIA , OLOFSSON HENRIK , OVESJO FREDRIK
Abstract: An uplink common physical channel (random access channel) frame structure with a separate preamble and data portion. The preamble is used by a base station to detect that a mobile station is attempting a random access request. The data portion of the channel includes user data, and pilot symbols that provide energy for channel estimation during reception of the data portion. A guard interval is preferably inserted between the preamble and data portion of the frame, which enables data detection to occur during an idle period. As such, the frame structures for both the common physical (random access) uplink channel and dedicated physical (traffic) uplink channel are compatible.
-
Patent Agency Ranking
公开(公告)号：AU8364098A
公开(公告)日：1999-02-08
申请号：AU8364098
申请日：1998-07-03
Applicant: ERICSSON TELEFON AB L M
Inventor： OVESJO FREDRIK , DAHLMAN ERIK
Abstract: Variable spreading factors and multi-code transmissions are flexibly accommodated by assigning spreading codes in accordance with the described techniques. Spreading codes are assigned so that the control channel is orthogonal to all physical channels in the composite spread spectrum signal. Power balance between in-phase (I) and quadrature (Q) branches in the transmitter is also provided by assigning physical channels to appropriate branches and splitting physical channels, where necessary.
-
公开(公告)号：ZA985930B
公开(公告)日：1999-01-27
申请号：ZA985930
申请日：1998-07-06
Applicant: ERICSSON TELEFON AB L M
Inventor： OVESJO FREDRIK , DAHLMAN ERIK
Abstract: Variable spreading factors and multi-code transmissions are flexibly accommodated by assigning spreading codes in accordance with the described techniques. Spreading codes are assigned so that the control channel is orthogonal to all physical channels in the composite spread spectrum signal. Power balance between in-phase (I) and quadrature (Q) branches in the transmitter is also provided by assigning physical channels to appropriate branches and splitting physical channels, where necessary.
-
公开(公告)号：ZA9805930B
公开(公告)日：1999-01-27
申请号：ZA9805930
申请日：1998-07-06
Applicant: ERICSSON TELEFON AB L M
Inventor： OVESJO FREDRIK , DAHLMAN ERIK
CPC classification number: H04J13/0044 , H04B7/264 , H04J13/0077 , H04J13/20
-
公开(公告)号：AU8044098A
公开(公告)日：1999-01-04
申请号：AU8044098
申请日：1998-05-26
Applicant: ERICSSON TELEFON AB L M
Inventor： KARLSSON JONAS , LUNDSJO JOHAN , OVESJO FREDRIK
Abstract: The present invention relates to sectorization of a cellular CDMA-system. Each sectorized cell (CELL) in the CDMA-system comprises a number of antenna sectors (AS1-AS8) having overlapping regions. Each cell is allocated a number of at least two different pilot channels (P1, P2). Two antenna sectors having a common overlapping region are not allowed to use the same pilot channel. At least one of said pilot channels (P1, P2) are reused within the cell, by at least two antenna sectors with no common overlapping region. The antenna sectors that use the same pilot signal are constituting a logical sector (LS1, LS2). A mobile station can communicate with the base station in a cell by using one or more antenna sectors within one or more logical sectors. If a mobile station communicates with the base station within a number of antenna sectors within the same logical sector, no softer handoff is required between the antenna sectors.
-
公开(公告)号：AU2013240631A1
公开(公告)日：2014-09-04
申请号：AU2013240631
申请日：2013-02-15
Applicant: ERICSSON TELEFON AB L M
Inventor： JONSSON ANDERS , NAMMI SAIRAMESH , GORANSSON BO , LIDIAN NAMIR , OVESJO FREDRIK
Abstract: A method of operating a wireless network node may include transmitting a first MIMO downlink communication to a wireless terminal according to a first MIMO rank, and receiving at least one HARQ ACK/NACK, message from the wireless terminal corresponding to the first MIMO downlink communication. A report may be received from the wireless terminal identifying a reported MIMO rank, and a second MIMO rank may be selected for a second MIMO downlink communication responsive to the at least one HARQ ACK/NACK message. The second MIMO downlink communication may be transmitted to the wireless terminal according to the second MIMO rank.
-
-
-
-
-
-
-
-
-
Search Results
42
records
(took 0.026 seconds)
