METHOD AND SYSTEM AND DEVICE FOR IF/IRAT MEASUREMENT ALLOCATION

• US 20110085465A1
• Filed: 06/08/2009
• Published: 04/14/2011
• Est. Priority Date: 06/09/2008
• Status: Abandoned Application

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Palenius, Torgny, Lindoff, Bengt
• Application Number:
  US12/996,971
• Publication Number:
  US 20110085465A1
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04J 11/0069 Cell search, i.e. determining cell identity [cell-ID] design of multiplexing codes H04J13/00; processing access restriction or access information H04W48/16; discovery of network devices for network data management H04W8/005; sounding signals for channel estimation H04L25/0226; structure of reference signals in multicarrier modulation systems H04L27/2613; frame, time or carrier synchronisation in multicarrier modulation systems H04L27/2655
• CPC Class Codes: H04W 36/0066 of control information between different types of networks in order to establish a new radio link in the target network
• CPC Class Codes: H04W 36/0088 Scheduling hand-off measurements
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 52/0245 according to signal strength
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The current invention relates to a method of searching and/or measuring on cells in a mobile communication device connected to a first cell in a network, the method comprising receiving a number of data-frames and a plurality of idle frames which can be used for cell search and/or measurement and wherein the plurality of idle frames intervenes the number of data-frames; receiving information regarding at least one further cell in said network; and based on the received information, determining for each of the at least one further cell a first part of at least one of said idle frames to search and/or measure on said at least one further cell. Further, the invention further relates to a device and a system.

Claims

1. A method of searching and/or measuring on cells in a mobile communication device connected to a first cell in a network, the method comprising:

receiving a number of data-frames and a plurality of idle frames which can be used for cell search and/or measurement and wherein the plurality of idle frames intervenes the number of data-frames;

receiving information regarding at least one further cell in said network; and

based on the received information, determining for each of the at least one further cell a first part of at least one of said idle frames to search and/or measure on said at least one further cell,

wherein the method further comprises classifying said at least one further cell into a first group of a plurality of groups comprising respective group requirements, and wherein the first group comprises at least one first group requirement being correlated to said information.

3. A method according to claim 1, wherein the method further comprises:

measuring at least one property of the at least one further cell;

determining, based on said at least one property, if said at least one further cell requires a re-classification into a second group; and

for each of the at least one further cells requiring a reclassification;

re-classifying said at least one further cell into the second group based on said at least one property, wherein said second group comprises at least one second group requirement being correlated to said at least one property; and

based on the re-classification, determining for each of the at least one further cell a second part of at least one of said idle frames to search and/or measure on said at least one further cell.

4. A method according to claim 1, wherein classifying said at least one further cell into a first group further comprises determining a period of the plurality of idle frames.

5. A method according to claim 4, wherein the first part is determined periodically with the period.

6. A method according to claim 3, wherein the method further comprises repeating the measuring and the re-classifying and the determining for each of the at least one further cell until the mobile communication device is handed over to one of the at least one further cell.

7. A method according to claim 1, wherein the mobile communication device is adapted to power down during a third part of the idle frames being equal to the complement to a union of said first and second parts of the idle frames.

8. A method according to claim 1, wherein said first group requirement is different from said second group requirement.

9. A method according to claim 3, wherein the first and/or the second group requirements are chosen from:

a cell requiring an entire idle frame and a specific period of the plurality of idle frames;

a cell requiring an entire idle frame;

a cell requiring a subset of an idle frame and a specific timing within the idle frame;

or

a cell requiring a subset of an idle frame.

2. (canceled)

10. A device for searching and/or measuring on cells in a mobile communication device connected to a first cell in a network, the device comprising:

a receiver for receiving a number of data-frames and a plurality of idle frames which can be used for cell search and/or measurement and wherein the plurality of idle frames intervenes the number of data-frames; and

for receiving information regarding at least one further cell in said network; and

a control unit for, based on the received information, determining for each of the at least one further cell a first part of at least one of said idle frames to search and/or measure on said at least one further cell,

wherein the device further comprises a control unit for classifying said at least one further cell into a first group of a plurality of groups comprising respective group requirements, and wherein the first group comprises at least one first group requirement being correlated to said information.

12. A device according to claim 10, wherein the device further comprises:

a cell search and measuring unit for measuring at least one property of the at least one further cell; and

for determining, based on said at least one property, if said at least one further cell requires a re-classification; and

a control unit for, for each of the at least one further cells requiring a reclassification, re-classifying said at least one further cell into a second group based on said at least one property, wherein said second group comprises at least one second group requirement being correlated to said at least one property; and

for, based on the re-classification, determining for each of the at least one further cell a second part of at least one of said idle frames to search and/or measure on said at least one further cell.

13. A device according to claim 10, wherein the control unit for classifying said at least one further cell into a first group further is further adapted for determining a period of the plurality of idle frames.

14. A device according to claim 13, wherein the device is adapted to determine the first part periodically with the period.

15. A device according to claim 12, wherein the control unit is further adapted for repeating the measuring and the re-classifying and the determining for each of the at least one further cell until the mobile communication device is handed over to one of the at least one further cell.

16. A device according to claim 10, wherein the control unit is further adapted to power down the mobile communication device during a third part of the idle frames being equal to the complement to a union of said first and second parts of the idle frames.

17. A system for handing over a mobile communication device from a first cell to another cell, wherein the system comprises a device according to claim 10 and a first cell and another cell.

11. (canceled)