Interference control mechanism in multi-band communication
First Claim
1. An apparatus comprising or disposed within a user equipment, the apparatus comprising:
- at least one processor; and
at least one memory including computer program code;
the at least one memory and the computer program code configured, with the at least one processor, to cause the user equipment to perform at least;
an interference determination function configured to determine an interference situation caused between a first set of uplink communications performed on at least two different frequency bands and a second communication performed on another frequency band being different to the at least two frequency bands of the first set of uplink communications, anda frequency carrier deactivation processing function by which the user equipment conducts an autonomous denial process that operates to deactivate at least one but less than all frequency carriers of the at least two frequency bands of the first set of uplink communications in case the interference situation is determined.
11 Assignments
0 Petitions
Accused Products
Abstract
There is provided a mechanism for controlling communications conducted in multiple frequency bands so as to decrease an interference level between the communications. When an interference situation caused between a first set UL communications performed on at least two different frequency bands and a DL communication performed on another frequency band is determined, a frequency carrier deactivation processing is conducted so as to deactivate either one of carriers of the at least two frequency bands of the set of UL communications. The deactivation processing includes for example an autonomous denial on the UE side or an interference reporting with deactivation on the eNB side.
33 Citations
20 Claims
-
1. An apparatus comprising or disposed within a user equipment, the apparatus comprising:
-
at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured, with the at least one processor, to cause the user equipment to perform at least; an interference determination function configured to determine an interference situation caused between a first set of uplink communications performed on at least two different frequency bands and a second communication performed on another frequency band being different to the at least two frequency bands of the first set of uplink communications, and a frequency carrier deactivation processing function by which the user equipment conducts an autonomous denial process that operates to deactivate at least one but less than all frequency carriers of the at least two frequency bands of the first set of uplink communications in case the interference situation is determined. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
wherein the interference situation comprises an interference through intermodulation.
-
-
4. The apparatus according to claim 1, wherein:
-
the first set of uplink communications is conducted on frequency bands used for a cellular wireless communication system, and the second communication is conducted on a frequency band used for at least one of an industrial, scientific and medical (ISM) communication, and a global navigation satellite system (GNSS) communication.
-
-
5. The apparatus according to claim 1, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the user equipment to further perform at least:
an interference level estimation function configured to estimate a level of interference caused by the determined interference situation, to compare the estimated level of interference with a predetermined threshold, and to decide to cause the frequency carrier deactivation processing function to conduct the autonomous denial process in case the estimated level of interference is higher than the predetermined threshold, or to cause the frequency carrier deactivation processing function to stop the autonomous denial process in case the estimated level of interference is lower than the predetermined threshold.
-
6. The apparatus according to claim 5, wherein the interference level estimation function is further configured to estimate the level of interference by comparing a transmission output power level for communications of the first set of uplink communications with a preset power threshold.
-
7. The apparatus according to claim 1, wherein the user equipment includes plural transceivers capable of conducting in-device co-existence operation by communicating on different frequency bands.
-
8. The apparatus according to claim 1, wherein the user equipment autonomously deactivates the at least one frequency carrier according to an autonomous denial operation which comprises:
-
a selection process for selecting the at least one frequency carrier of the at least two frequency bands, and a denial process for inhibiting a transmission on the selected at least one frequency carrier for a predetermined time based on the determined interference situation.
-
-
9. The apparatus according to claim 8, wherein the selection process selects the at least one frequency carrier on the basis of at least one of:
-
a determination which communication of the first set of uplink communications performed on the at least two different frequency bands does not comprise a control channel, a determination which communication of the first set of uplink communications performed on the at least two different frequency bands has less resource blocks, and which communication of the first set of uplink communications performed on the at least two different frequency bands causes more interference.
-
-
10. The apparatus according to claim 1, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the user equipment to further perform at least:
an interference situation reporting function configured to cause the user equipment to send an interference report indicating the interference situation and comprising frequency information identifying the deactivated at least one frequency carrier.
-
11. A method for operating a user equipment, the method comprising:
-
determining an interference situation caused between a first set of uplink communications performed on at least two different frequency bands and a second communication performed on another frequency band being different to the at least two frequency bands of the first set of uplink communications, and conducting an autonomous denial process that operates to deactivate at least one but less than all frequency carriers of the at least two frequency bands of the first set of uplink communications in case the interference situation is determined. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A memory storing computer program code which, when executed by at least one processor of a user equipment, causes the user equipment to:
-
determine an interference situation caused between a first set of uplink communications performed on at least two different frequency bands and a second communication performed on another frequency band being different to the at least two frequency bands of the first set of communications, and conduct an autonomous denial process that operates to deactivate at least one but less than all frequency carriers of the at least two frequency bands of the first set of communications in case the interference situation is determined.
-
Specification