Modified measurement procedures for user equipments
View Patent ↗A network sends to a user equipment UE downlink signaling indicating at least one frequency which is subject to special handling. In response the UE measures and reports neighbor cells operating on any of that/those frequencies without regard to a threshold signal strength of a serving cell which is configured for reporting neighbor cells. In more specific examples, if the neighbor cells operating on any of that/those frequencies is considered a first set of neighbor cells, then the network also sends a second set of neighbor cells in other downlink signaling. Measuring and reporting on the first set of neighbor cells is less frequent than for the second set of neighbor cells, when measurements of the second set is required. Measuring and reporting on the second set is dependent on measured signal strength of a serving cell being greater than the configured threshold signal strength of the serving cell.
1. A method for operating a wireless user equipment, comprising:
receiving downlink signaling from a network serving cell, the downlink signaling comprising a Measurement Object information element having a network configured flag indicating measurement reports for at least one first frequency referred to by the Measurement Object information element; and
measuring and reporting, to the network serving cell operating on a different second frequency, a first set of neighbor cells operating on any of the at least one first frequency without regard to a configured threshold signal strength s-Measure of the serving cell;
wherein based at least in part on the flag, the measuring of the first set of neighbor cells is less frequent than the measuring of a second set of neighbor cells also received in downlink signaling, and wherein the network configured flag is a single bit for each of the at least one first frequency, and is configured without regard to cell type.
2. The method according to claim 1 , in which the configured threshold signal strength s-Measure is indicated in a Measurement Configuration information element, there are at least two first frequencies for measuring the first set of neighbor cells, and the received downlink signaling comprises, for each respective first frequency, a separate Measurement Object information element comprising a flag indicating capacity-based measurement reports for the respective first frequency.
3. The method according to claim 1 , in which the method further comprises:
receiving a downlink load indicator from one of the neighbor cells operating on the at least one first frequency; and
wherein the measuring of that one neighbor cell is conditional on the load indicator indicating that the one neighbor cell is not overloaded.
4. The method according to claim 1 , in which the method is executed by a user equipment or one or more components therefor.
5. The method according to claim 1 , wherein the first set of neighbor cells comprises a cell used for capacity purposes.
6. The method according to claim 1 , wherein the second set of neighbor cells comprises a cell used for coverage purposes.
7. An apparatus for communicating, comprising
at least one processor; and
a memory storing a set of computer instructions, in which the at least one processor is arranged with the memory storing the instructions to cause the apparatus to perform:
receiving downlink signaling from a network serving cell, the downlink signaling comprising a Measurement Object information element having a network configured flag indicating measurement reports for at least one first frequency referred to by the Measurement Object information element; and
measuring and reporting, to the network serving cell operating on a different second frequency, a first set of neighbor cells operating on any of the at least one first frequency without regard to a configured threshold signal strength s-Measure of the serving cell;
wherein based at least in part on the flag, the measuring of the first set of neighbor cells is less frequent than the measuring of a second set of neighbor cells also received in downlink signaling, and wherein the network configured flag is a single bit for each of the at least one first frequency, and is configured without regard to cell type.
8. The apparatus according to claim 7 , in which the configured threshold signal strength s-Measure is indicated in a Measurement Configuration information element, there are at least two first frequencies for measuring the first set of neighbor cells, and the received downlink signaling comprises, for each respective first frequency, a separate Measurement Object information element comprising a flag indicating capacity-based reports for the respective first frequency.
9. The apparatus according to claim 7 , in which the at least one processor is arranged with the memory storing the instructions to cause the apparatus to further perform:
receiving a downlink load indicator from one of the neighbor cells operating on the at least one first frequency;
and wherein the measuring of that one neighbor cell is conditional on the load indicator indicating that the one neighbor cell is not overloaded.
10. The apparatus according to claim 7 , in which the apparatus comprises a user equipment or one or more components therefor.
11. A non-transitory computer readable memory tangibly storing a set of instructions which, when executed on a wireless user equipment, causes the user equipment to perform at least:
receiving downlink signaling from a network serving cell, the downlink signaling comprising a Measurement Object information element having a network configured flag indicating measurement reports for at least one first frequency referred to by the Measurement Object information element; and
measuring and reporting, to the network serving cell operating on a different second frequency, a first set of neighbor cells operating on any of the at least one first frequency without regard to a threshold signal strength of the serving cell;
wherein based at least in part on the flag, the measuring of the first set of neighbor cells is less frequent than the measuring of a second set of neighbor cells also received in downlink signaling, and wherein the network configured flag is a single bit for each of the at least one first frequency, and is configured without regard to cell type.
12. The non-transitory computer readable memory according to claim 11 , in which the configured threshold signal strength is indicated in a Measurement Configuration information element, there are at least two first frequencies for measuring the first set of neighbor cells, and the received downlink signaling comprises, for each respective first frequency, a separate Measurement Object information element comprising a flag indicating capacity-based measurement reports for respective first frequency.
13. The non-transitory computer readable memory according to claim 11 , in which the set of instructions, when executed on a communicating apparatus, causes the apparatus to further perform:
receiving a downlink load indicator from one of the neighbor cells operating on the at least one first frequency;
and wherein the measuring of that one neighbor cell is conditional on the load indicator indicating that the one neighbor cell is not overloaded.
14. A method comprising:
arranging neighbor cells into a first list for offloading traffic and a second list for maintaining coverage; and
providing downlink signaling, the downlink signaling comprising a Measurement Object information element having a network configured flag indicating measurement reports for at least one first frequency referred to by the Measurement Object information element for measuring and reporting neighbor cells in the first list, and a threshold signal strength of a serving cell upon which measuring and reporting neighbor cells in the second list is conditional;
in which:
the network configured flag indicates that for the at least one first frequency, measuring and reporting neighbor cells in the first list is to be without regard to the threshold signal strength; and
the threshold signal strength of the serving cell comprises a parameter s-Measure; and
wherein based at least in part on the flag, the measuring of the neighbor cells in the first list is less frequent than the measuring of the neighbor cells in the second list when measurements of the second list are required, and wherein the network configured flag is a single bit for each of the at least one first frequency, and is configured without regard to cell type.
15. The method according to claim 14 , in which the method is executed by a network access node or one or more components therefor.
16. The method according to claim 15 , wherein the network access node is an evolved Node B (eNB) in a Long Term Evolution (LTE) system.
17. The method according to claim 14 , further comprising:
receiving, from at least one cell in the neighbor cells of the first list, an indication of the at least one cell's capacity to handle additional traffic.
18. The method according to claim 17 , wherein the indication of the at least one cell's capacity to handle additional traffic is received across an X2 interface in a Long Term Evolution (LTE) system.
19. The method according to claim 14 , further comprising:
sending, from the serving cell to at least one neighbor cell in the first list, an indication of the serving cell's capacity to handle additional traffic.
20. The method according to claim 19 , wherein the indication of the serving cell's capacity to handle additional traffic is sent across an X2 interface in a Long Term Evolution (LTE) system.