# US 2016/0366604 A1 · Methods, systems, and computer readable media for enhanced channel control element (cce) decoding in lte networks > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0366604 A1 - Document ID: US20160366604A1 - Status: Published application - Kind: A1 - Application number: 14/735,083 - Filed: 2015-06-09 - Published: 2016-12-15 - Earliest claimed: 2015-06-09 - Assignees: Ixia - Applicants: Ixia - Inventors: Prasada Rao Devarasetty - Web page: https://patentgrep.com/patent/US20160366604A1 ## CPC - H04W 24/06: Testing, {supervising or monitoring} using simulated traffic - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 48/12: using downlink control channel - H04W 74/002: {Transmission of channel access control information} - H04W 76/27: Transitions between radio resource control [RRC] states - H04W 88/02: Terminal devices - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Methods, systems, and computer readable media for enhanced channel control element (CCE) decoding are disclosed. According to one method that occurs in a multi-UE simulator, the method includes receiving physical downlink control channel (PDCCH) data from an evolved node B (eNode B) under test and decoding, using CCE avoidance information for avoiding at least a first CCE successfully identified as being associated with at least a first UE simulated by the multi-UE simulator, a second CCE associated with a second UE simulated by the multi-UE simulator. ## Claims ### Claim 1 A method for enhanced channel control element (CCE) decoding, the method comprising: in a multi-UE simulator: receiving physical downlink control channel (PDCCH) data from an evolved node B (eNode B) under test; and decoding, using channel control element (CCE) avoidance information for avoiding at least a first CCE successfully identified as being associated with at least a first UE simulated by the multi-UE simulator, a second CCE associated with a second UE simulated by the multi-UE simulator. ### Claim 2 (depends on 1) The method of claim 1 wherein the CCE avoidance information is updated, after each successful decoding of CCEs for each simulated UE, to include information for progressively reducing a search space for decoding CCEs during a CCE group processing cycle. ### Claim 3 (depends on 2) The method of claim 2 wherein the CCE group processing cycle includes a transmission time interval (TTI) or an amount of processing for decoding CCEs associated with simulated UEs in a CCE group. ### Claim 4 (depends on 1) The method of claim 1 comprising: updating the CCE avoidance information to include or exclude information indicating the second CCE. ### Claim 5 (depends on 4) The method of claim 4 comprising: prior to updating the CCE avoidance information, determining whether the second CCE is valid for the second UE. ### Claim 6 (depends on 5) The method of claim 5 wherein determining whether the second CCE is valid for the second UE includes decoding the second CCE into downlink control information (DCI) and determining whether the DCI satisfies an error tolerance value. ### Claim 7 (depends on 1) The method of claim 1 wherein decoding, using the CCE avoidance information, the second CCE associated with the second UE simulated by the multi-UE simulator includes using the CCE avoidance information to exclude the first CCE successfully identified as being associated with the first UE from being decoded for the second UE. ### Claim 8 (depends on 1) The method of claim 1 wherein the CCE avoidance information utilizes a claimed CCEs data structure indicating locations associated with decoded CCEs or an unclaimed CCEs data structure indicating locations associated with potential CCEs for decoding. ### Claim 9 A system for enhanced channel control element (CCE) decoding, the system comprising: a multi-UE simulator including: a processor; and an enhanced CCE decoder implemented using the processor, wherein the enhanced CCE decoder is configured to receive physical downlink control channel (PDCCH) data from an evolved node B (eNode B) under test and to decode, using channel control element (CCE) avoidance information for avoiding at least a first CCE successfully identified as being associated with at least a first UE simulated by the multi-UE simulator, a second CCE group location associated with a second UE simulated by the multi-UE simulator. ### Claim 10 (depends on 9) The system of claim 9 wherein the enhanced CCE decoder is configured to update, after each successful decoding of CCEs for each simulated UE, the CCE avoidance information for progressively reducing a search space for decoding CCEs during a CCE group processing cycle. ### Claim 11 (depends on 10) The system of claim 10 wherein the CCE group processing cycle includes a transmission time interval (TTI) or an amount of processing for decoding CCEs associated with simulated UEs in a CCE group. ### Claim 12 (depends on 9) The system of claim 9 wherein the enhanced CCE decoder is configured to update the CCE avoidance information to include or exclude information indicating the second CCE. ### Claim 13 (depends on 12) The system of claim 12 wherein the enhanced CCE decoder is configured to determine whether the second CCE is valid for the second UE prior to updating the CCE avoidance information. ### Claim 14 (depends on 13) The system of claim 13 wherein the enhanced CCE decoder is configured to decode the second CCE into DCI and determining whether the DCI satisfies an error tolerance value. ### Claim 15 (depends on 9) The system of claim 9 wherein the enhanced CCE decoder is configured to decoding, using the CCE avoidance information, the second CCE associated with the second UE simulated by the multi-UE simulator by using the CCE avoidance information to exclude the first CCE successfully identified as being associated with the first UE from being decoded for the second UE. ### Claim 16 (depends on 9) The system of claim 9 wherein the CCE avoidance information utilizes a claimed CCEs data structure indicating locations associated with decoded CCEs or an unclaimed CCEs data structure indicating locations associated with potential CCEs for decoding. ### Claim 17 A non-transitory computer readable medium having stored thereon executable instructions that when executed by a processor of a computer cause the computer to perform steps comprising: in a multi-UE simulator: receiving physical downlink control channel (PDCCH) data from an evolved node B (eNode B) under test; and decoding, using channel control element (CCE) avoidance information for avoiding at least a first CCE successfully identified as being associated with at least a first UE simulated by the multi-UE simulator, a second CCE associated with a second UE simulated by the multi-UE simulator. ### Claim 18 (depends on 17) The non-transitory computer readable medium of claim 17 wherein the CCE avoidance information is updated, after each successful decoding of CCEs for each simulated UE, to include information for progressively reducing a search space for decoding CCEs during a CCE group processing cycle. ### Claim 19 (depends on 18) The non-transitory computer readable medium of claim 18 wherein the CCE group processing cycle includes a transmission time interval (TTI) or an amount of processing for decoding CCEs associated with simulated UEs in a CCE group. ### Claim 20 (depends on 17) The non-transitory computer readable medium of claim 17 comprising: updating the CCE avoidance information to include or exclude information indicating the second CCE.