Device and method for multi-receive multi-SIM
AssigneeSamsung Electronics Co., Ltd.
InventorsChoon-seok Oh, Jun-kyoung Lee, Chul-kyung Kim, Young-yong Lee, Ju-Young Hyun
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Abstract
A device for multi-receive multi-subscriber identity module (SIM) includes an input buffer configured to provide samples of a baseband signal, a rake receiver including plural fingers and configured to generate a series of symbols from the samples, and a controller configured to assign the fingers to a single SIM in a multi-standby mode and respectively assign two or more finger groups divided from the fingers to two or more SIMs in a multi-receive mode.
Claims18
A device for a multi-receive multi-subscriber identity module (SIM), the device comprising:
- an input buffer configured to provide samples of a baseband signal;
- a rake receiver comprising a plurality of fingers and configured to generate a series of symbols from the samples;
- and
- a controller configured to assign the plurality of fingers to a single SIM of two or more SIMs in a multi-standby mode, and to respectively assign two or more finger groups divided from the plurality of fingers to the two or more SIMs in a multi-receive mode,
- wherein the controller, in the multi-receive mode, is further configured to divide the plurality of fingers into the two or more finger groups based on space diversity through which signals associated with the two or more SIMs are received,
- wherein the rake receiver comprises a plurality of symbol combiners each of which is configured to generate the series of symbols by rake combining signals provided from at least one of the plurality of fingers, and
- a first number of the plurality of symbol combiners is greater than a second number of channels required for one SIM.
A method for a multi-receive multi-subscriber identity module (SIM), the method comprising:
- determining a multi-standby mode or a multi-receive mode;
- assigning a plurality of fingers included in a rake receiver to a single SIM among two or more SIMs in the multi-standby mode;
- dividing the plurality of fingers into two or more finger groups when determining the multi-receive mode;
- and
- respectively assigning the two or more finger groups divided from the plurality of fingers to the two or more SIMs in the multi-receive mode,
- wherein the dividing of the plurality of fingers into the two or more finger groups comprises the plurality of fingers into the two or more finger groups based on space diversity through which signals associated with the two or more SIMs are received, wherein the rake receiver comprises a plurality of symbol combiners each of which is configured to generate a series of symbols by rake-combining signals provided from at least one of the plurality of fingers, and
- a first number of the plurality of symbol combiners is greater than a second number of channels required for one SIM.
A multi-subscriber identity module (SIM) terminal for multi-receive, the multi-SIM terminal comprising:
- a plurality of SIMs;
- a radio frequency integrated circuit (RFIC) configured to generate, from an RF-band signal received through an antenna, a baseband signal corresponding to a single SIM among the plurality of SIMs in a multi-standby mode and baseband signals corresponding to two or more SIMs of the plurality of SIMs in multi-receive mode;
- and
- a baseband processor comprising a rake receiver including a plurality of fingers and configured to respectively assign two or more finger groups divided from the plurality of fingers to the two or more SIMs in the multi-receive mode,
- wherein the baseband processor is, in the multi-receive mode, further configured to divide the plurality of fingers into the two or more finger groups based on space diversity through which signals associated with the two or more SIMs are received,
- wherein the rake receiver comprises a plurality of symbol combiners each of which is configured to generate a series of symbols by rake-combining signals provided from at least one of the plurality of fingers, and
- a first number of the plurality of symbol combiners is greater than a second number of channels required for one SIM.
Dependencies are inferred from the claim text.