公开(公告)号：GB2433379B

公开(公告)日：2007-11-14

申请号：GB0525536

申请日：2005-12-15

Applicant: MOTOROLA INC

Inventor： VILLIER ERIC

IPC: H04B7/005 ,  H04W16/18

公开(公告)号：GB2433379A

公开(公告)日：2007-06-20

申请号：GB0525536

申请日：2005-12-15

Applicant: MOTOROLA INC

Inventor： VILLIER ERIC

IPC: H04B7/005 ,  H04W16/18

Abstract: A method of generating a model of a cellular communication system comprises generating (101) a first cell layout for a first area and then generating (103) a displaced set of cell layouts corresponding to the first cell layout displaced in a different directions such that it borders the first cell layout. A unique mapping exists between the cells of the first set and of the displaced sets. A model location set is generated (105) comprising a plurality of locations within the first area. For each location and for the cells of the first cell layout, the method comprises evaluating (111) an interference characteristic for cells of a cell group containing all the corresponding cells in the different cell layouts. A cell is then selected (113) from the cell group as an interfering cell for the location. The resulting model provides improved wrap around performance while achieving low computational burden for performance evaluation based on the model.

公开(公告)号：GB2391755B

公开(公告)日：2006-01-11

申请号：GB0218642

申请日：2002-08-10

Applicant: MOTOROLA INC

Inventor： VILLIER ERIC ,  JONES PHILIP

IPC: H04W48/20

公开(公告)号：GB2402580B

公开(公告)日：2005-07-27

申请号：GB0313099

申请日：2003-06-06

Applicant: MOTOROLA INC

Inventor： BARRETT STEPHEN ,  VILLIER ERIC ,  LEGG PETER

IPC: H04L12/54 ,  H04L12/801 ,  H04L12/56

公开(公告)号：GB2408419A

公开(公告)日：2005-05-25

申请号：GB0327151

申请日：2003-11-21

Applicant: MOTOROLA INC

Inventor： LEGG PETER ,  VILLIER ERIC

IPC: H04B7/005 ,  H04W52/12 ,  H04W52/16

Abstract: An outer loop power control method for a radio communications system, e.g. UMTS, comprising determining that a plurality of different services (e.g. voice and data) are being communicated, performing a comparison with respect to the different services, and providing an inner loop power control performance target, for example a signal to interference ratio (SIR) target, in a manner dependent on the comparison, i.e. the transmission power is adjusted to achieve the higher required SIR of the plurality of services. The required SIR for the various services is checked frequently to ensure that as requirements change the transmission power is only as high as required, therefore extending battery life.

公开(公告)号：GB2432752A

公开(公告)日：2007-05-30

申请号：GB0524388

申请日：2005-11-29

Applicant: MOTOROLA INC

Inventor： VILLIER ERIC

IPC: H04W16/02 ,  H04W16/06

Abstract: A cellular communication system (100) a first Radio Network Controller (107) supporting different communication service types. A first resource controller (203) controls resource allocation for a first communication service type from a first resource partition and a second resource controller (205) controls resource allocation for a second communication service type from a second resource partition. A partition processor (207) partitions a shared resource into at least the first and second resource partition in response to a first admission failure measure for the first communication service type. Optionally, the partition processor (207) may partition the shared resource into at least the first and second resource partition in response to a second admission failure measure for the first communication service type.

公开(公告)号：GB2391755A

公开(公告)日：2004-02-11

申请号：GB0218642

申请日：2002-08-10

Applicant: MOTOROLA INC

Inventor： VILLIER ERIC ,  JONES PHILIP

IPC: H04W48/20 ,  H04Q7/32

Abstract: A system for cell selection in a cellular communication system (200) having a plurality of base stations (201,203) supporting user equipment (201). A radio characteristics processor (225) determines radio characteristics associated with a user equipment (201) and all base stations (201,203) of the neighbour list. Specifically the transmit power required for the signals of the user equipment (201) to be received at each of the base stations (201, 203) at a given signal to interference ratio is calculated. A cell selector (229) selects a serving cell using a selection criterion associated with uplink conditions in the communication system, and specifically the cell for which the calculated user equipment transmit power is the lowest. The invention is suitable for cellular communication systems such as GSM or UMTS.

公开(公告)号：GB2445990B

公开(公告)日：2009-01-21

申请号：GB0701345

申请日：2007-01-24

Applicant: MOTOROLA INC

Inventor： LOPES LUIS ,  VILLIER ERIC

IPC: H04B7/005

Abstract: An access point for a radio communication system transmits a pilot signal. The access point can operate in different modes with the pilot signal transmit power being controlled differently. A mode processor (105) controls a pilot signal controller (103) such that when in a first mode the access point is arranged to vary a pilot signal transmit power in accordance with a first transmit power profile. Another mode processor (107) controls the pilot signal transmit power in accordance with a second profile in a second mode. The transmit power may be constant during the second mode. A transition processor (111) is arranged to transition the access point from the first mode to the second mode in response to receiving an access request for a remote station.

公开(公告)号：GB2445990A

公开(公告)日：2008-07-30

申请号：GB0701345

申请日：2007-01-24

Applicant: MOTOROLA INC

Inventor： LOPES LUIS ,  VILLIER ERIC

IPC: H04B7/005

Abstract: An access point for radio communication system transmits a pilot signal. The access point can operate in different modes with the pilot signal transmit power being controlled differently. Specifically, a first mode processor (105) controls a pilot signal controller (103) such that when it is in the first mode the access point is arranged to vary a pilot signal transmit power in accordance with a first transmit power profile, e.g. from a minimum value to a maximum value, the later value corresponding to the coverage area. A second mode processor (107) controls the pilot signal transmit power in accordance with a second transmit power profile in a second mode of operation. Specifically, the transmit power may be constant (e.g. at maximum value) during the second mode operation. A transition processor (111) is arranged to transition the access point from the first mode to the second mode in response to receiving an access request for a remote station.

公开(公告)号：GB2408419B

公开(公告)日：2006-02-22

申请号：GB0327151

申请日：2003-11-21

Applicant: MOTOROLA INC

Inventor： LEGG PETER ,  VILLIER ERIC

IPC: H04B7/005 ,  H04W52/12 ,  H04W52/16

Abstract: An outer loop power control method and apparatus for a radio communications system, for example a UMTS cellular radio communications system ( 60 ), comprising: determining that a plurality of different services are being communicated; performing a comparison with respect to the different services; and providing an inner loop power control performance target, for example a signal to interference ratio (SIR) target, in a manner dependent upon the comparison.