# US 10,771,273 B2 · Network information for assisting user equipment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,771,273 B2 - Document ID: US10771273B2 - Status: Granted - Kind: B2 - Application number: 15/439,864 - Filed: 2017-02-22 - Published: 2017-06-08 - Granted: 2020-09-08 - Earliest claimed: 2009-06-04 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Tao Luo; Yongbin Wei; Peter Gaal; Hao Xu; Taesang Yoo; Siddhartha Mallik; Makesh Pravin John Wilson; Naga Bhushan; Durga Prasad Malladi; Tingfang Ji; Gavin Bernard Horn; Alexei Y. Gorokhov; Avneesh Agrawal - Web page: https://patentgrep.com/patent/US10771273B2 ## CPC - H04L 12/189: {in combination with wireless systems (selective distribution or broadcast in wireless communication networks H04W4/06)} - H04B 7/0452: Multi-user MIMO systems - H04B 7/0632: {Channel quality parameters, e.g. channel quality indicator [CQI]} - H04B 17/336: Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] - H04L 1/0026: {Transmission of channel quality indication} - H04L 1/0075: {Transmission of coding parameters to receiver (H04L1/0023 takes precedence)} - H04L 5/0035: {Resource allocation in a cooperative multipoint environment} - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04L 5/0057: {Physical resource allocation for CQI} - H04L 5/0073: {Allocation arrangements that take into account other cell interferences} - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W 72/541: using the level of interference - H04B 7/0413: MIMO systems - H04L 1/0067: {Rate matching (H04L1/0013 and H04L1/08 take precedence)} - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE that acquires information regarding an interfering non-serving cell and uses the information to improve decoding of serving cell signals. The method includes receiving, from a serving evolved Node B (eNB), information that includes one or more transmission characteristics of at least one non-serving cell and performing at least one of interference cancellation, demodulation, or provides an improved channel quality indicator (CQI) based on the received information. ## Claims ### Claim 1 A method of wireless communication comprising: receiving, from a serving base station, information comprising transmission characteristics of a signal transmitted from at least one non-serving base station, the transmission characteristics comprising a transmission mode and a traffic-to-pilot ratio (TPR) variation of the at least one non-serving base station; and performing at least one of interference cancellation, demodulation, or providing an improved channel quality indicator (CQI) using the received transmission mode and the TPR variation of the at least one non-serving base station. ### Claim 2 (depends on 1) The method of claim 1, wherein the transmission characteristics comprises one or more interference characteristics of the signal transmitted from the at least one non-serving base station. ### Claim 3 (depends on 2) The method of claim 2, wherein the one or more interference characteristics further comprises at least one of a recently used radio network temporary identifier (RNTI) value, an interfering cell (IC) list, a carrier type, a carrier release, a virtual cell identification (ID), a control span, statistics regarding a loading level of at least one of almost blank subframes (ABSs) and non-ABSs, statistics regarding previously used traffic-to-pilot ratios (TPRs), a previously used TPR, statistics regarding a previously used modulation order, and the previously used modulation order. ### Claim 4 (depends on 1) The method of claim 1, wherein: the information further comprises one or more characteristics of a relay node; and the at least one non-serving base station is a donor base station. ### Claim 5 (depends on 4) The method of claim 4, wherein the one or more characteristics of the relay node comprises at least one of a type of the donor base station, loading information of the donor base station, a resource allocation to the relay node, and a parameter indicating a backhaul quality of the relay node. ### Claim 6 (depends on 1) The method of claim 1, wherein the information indicates whether subframes from the at least one non-serving base station are based on a legacy carrier type (LCT), a new carrier type (NCT), or the LCT and the NCT. ### Claim 7 (depends on 1) The method of claim 1, wherein the information indicates a narrowband region dedicated for machine type communication (MTC). ### Claim 8 (depends on 1) The method of claim 1, wherein the information indicates a time division multiplexing (TDM) partition between a new carrier type (NCT) and a legacy carrier type (LCT) in a subframe transmitted from the at least one non-serving base station. ### Claim 9 (depends on 1) The method of claim 1; wherein the information indicates whether a node configured for multi-user multiple-input multiple-output (MU-MIMO) is currently transmitting. ### Claim 10 (depends on 1) The method of claim 1, wherein the information indicates a cooperation set associated with a coordinated multi-point (COMP) configuration. ### Claim 11 (depends on 1) The method of claim 1, wherein the information further comprises tunneled non-serving base station information used for performing a handover procedure. ### Claim 12 (depends on 1) The method of claim 1, wherein the information indicates loading information of different nodes and different radio access technologies (RATs) of a multi-flow configuration. ### Claim 13 (depends on 1) The method of claim 1, wherein the information indicates at least one of a multicast broadcast single frequency network (MBSFN) configuration of the at least one non-serving base station and a multimedia broadcast multi cast service (MBMS) configuration of the at least one non-serving base station. ### Claim 14 (depends on 1) The method of claim 1, wherein the information indicates matching information for a physical downlink shared channel (PDSCH). ### Claim 15 (depends on 1) The method of claim 1, wherein the information indicates the TPR variation of one of quadrature phase-shift keying (QPSK), 16-quadrature amplitude modulation (QAM), or 64-QAM. ### Claim 16 (depends on 1) The method of claim 1, wherein the information indicates a configuration of positioning reference signals (PRS) implemented by the at least one non-serving base station. ### Claim 17 (depends on 1) The method of claim 1, wherein the transmission mode of the at least one non-serving base station indicates whether the signal transmitted from the at least one non-serving base station is transmitted with a single transmit antenna or transmit diversity. ### Claim 18 An apparatus for wireless communication; comprising: means for receiving, from a serving base station, information comprising transmission characteristics of a signal transmitted from at least one non-serving base station, the transmission characteristics comprising a transmission mode and a traffic-to-pilot ratio (TPR) variation of the at least one non-serving base station; and means for performing at least one of interference cancellation, demodulation; or providing an improved channel quality indicator (CQI) using the received transmission mode and the TPR variation of the at least one non-serving base station. ### Claim 19 (depends on 18) The apparatus of claim 18, wherein the transmission characteristics comprises one or more interference characteristics of the signal transmitted from the at least one non-serving base station. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the one or more interference characteristics further comprises at least one of a recently used radio network temporary identifier (RNTI) value, an interfering cell (IC) list, a carrier type, a carrier release, a virtual cell identification (ID), a control span, statistics regarding a loading level of at least one of almost blank subframes (ABSs) and non-ABSs, statistics regarding previously used traffic-to-pilot ratios (TPRs), a previously used TPR, statistics regarding a previously used modulation order, and the previously used modulation order. ### Claim 21 (depends on 18) The apparatus of claim 18, wherein: the information further comprises one or more characteristics of a relay node; and the at least one non-serving base station is a donor base station. ### Claim 22 (depends on 21) The apparatus of claim 21, wherein the one or more characteristics of the relay node comprises at least one of a type of the donor base station, loading information of the donor base station, a resource allocation to the relay node, and a parameter indicating a backhaul quality of the relay node. ### Claim 23 (depends on 18) The apparatus of claim 18, wherein the information indicates whether subframes from the at least one non-serving base station are based on a legacy carrier type (LCT), a new carrier type (NCT), or the LCT and the NCT. ### Claim 24 (depends on 18) The apparatus of claim 18, wherein the information indicates a narrowband region dedicated for machine type communication (MTC). ### Claim 25 (depends on 18) The apparatus of claim 18, wherein the information indicates a time division multiplexing (TDM) partition between a new carrier type (NCT) and a legacy carrier type (LCT) in a subframe transmitted from the at least one non-serving base station. ### Claim 26 (depends on 18) The apparatus of claim 18, wherein the information indicates whether a node configured for multi-user multiple-input multiple-output (MU-MIMO) is currently transmitting. ### Claim 27 (depends on 18) The apparatus of claim 18, wherein the information indicates a cooperation set associated with a coordinated multi-point (CoMP) configuration. ### Claim 28 (depends on 18) The apparatus of claim 18, wherein the information further comprises tunneled non-serving base station information used for performing a handover procedure. ### Claim 29 (depends on 18) The apparatus of claim 18, wherein the information indicates loading information of different nodes and different radio access technologies (RATs) of a multi-flow configuration. ### Claim 30 (depends on 18) The apparatus of claim 18, wherein the information indicates at least one of a multicast broadcast single frequency network (MBSFN) configuration of the at least one non-serving base station and a multimedia broadcast multicast service (MBMS) configuration of the at least one non-serving base station. ### Claim 31 (depends on 18) The apparatus of claim 18, wherein the information indicates rate matching information for a physical downlink shared channel (PDSCH). ### Claim 32 (depends on 18) The apparatus of claim 18, wherein the information indicates the TPR variation of one of quadrature phase-shift keying (QPSK), 16-quadrature amplitude modulation (QAM), or 64-QAM. ### Claim 33 (depends on 18) The apparatus of claim 18, wherein the information indicates a configuration of positioning reference signals (PRS) implemented by the at least one non-serving base station. ### Claim 34 An apparatus for wireless communication, comprising: a memory; and at least one processor coupled to the memory and configured to: receive, from a serving base station, information comprising transmission characteristics of a signal transmitted from at least one non-serving base station, the transmission characteristics comprising a transmission mode and a traffic-to-pilot ratio (TPR) variation of the at least one non-serving base station; and perform at least one of interference cancellation, demodulation, or providing an improved channel quality indicator (CQI) using the received transmission mode and the TPR variation of the at least one non-serving base station. ### Claim 35 (depends on 34) The apparatus of claim 34, wherein the transmission characteristics comprises one or more interference characteristics of the signal transmitted from the at least one non-serving base station. ### Claim 36 (depends on 35) The apparatus of claim 35, wherein the one or more interference characteristics further comprises at least one of a recently used radio network temporary identifier (RNTI) value; an interfering cell (IC), a carrier type, a carrier release, a virtual cell identification (ID), a control span, statistics regarding a loading level of at least one of almost blank subframes (ABSs) and non-ABSs, statistics regarding previously used traffic-to-pilot ratios (TPRs), a previously used TPR, statistics regarding a previously used modulation order, and the previously used modulation order. ### Claim 37 (depends on 34) The apparatus of claim 34, wherein: the information further comprises one or more characteristics of a relay node; and the at least one non-serving base station is a donor base station. ### Claim 38 (depends on 37) The apparatus of claim 37, wherein the one or more characteristics of the relay node comprises at least one of a type of the donor base station, loading information of the donor base station, a resource allocation to the relay node, and a parameter indicating a backhaul quality of the relay node. ### Claim 39 (depends on 34) The apparatus of claim 34, wherein the information indicates whether subframes from the at least one non-serving base station are based on a legacy carrier type (LCT), a new carrier type (NCT), or the LCT and the NCT. ### Claim 40 (depends on 34) The apparatus of claim 34, wherein the information indicates a narrowband region dedicated for machine type communication (MTC). ### Claim 41 (depends on 34) The apparatus of claim 34, wherein the information indicates a time division multiplexing (TDM) partition between a new carrier type (NCT) and a legacy carrier type (LCT) in a subframe transmitted from the at least one non-serving base station. ### Claim 42 (depends on 34) The apparatus of claim 34, wherein the information indicates whether a node configured for multi-user multiple-input multiple-output (MU-MIMO) is currently transmitting. ### Claim 43 (depends on 34) The apparatus of claim 34, wherein the information indicates a cooperation set associated with a coordinated multi-point (COMP) configuration. ### Claim 44 (depends on 34) The apparatus of claim 34, wherein the information further comprises tunneled non-serving base station information used for performing a handover procedure. ### Claim 45 (depends on 34) The apparatus of claim 34, wherein the information indicates loading information of different nodes and different radio access technologies (RATS) of a multi-flow configuration. ### Claim 46 (depends on 34) The apparatus of claim 34, wherein the information indicates at least one of a multicast broadcast single frequency network (MBSFN) configuration of the at least one non-serving base station and a multimedia broadcast multicast service (MBMS) configuration of the at least one non-serving base station. ### Claim 47 (depends on 34) The apparatus of claim 34, wherein the information indicates rate matching information for a physical downlink shared channel (PDSCH). ### Claim 48 (depends on 34) The apparatus of claim 34, wherein the information indicates the TPR variation of one of quadrature phase-shift keying (QPSK), 16-quadrature amplitude modulation (QAM) or 64-QAM. ### Claim 49 (depends on 34) The apparatus of claim 34, wherein the information indicates a configuration of positioning reference signals (PRS) implemented by the at least one non-serving base station. ### Claim 50 A non-transitory computer-readable medium storing computer-executable code, comprising code to: receive, from a serving base station, information comprising transmission characteristics of a signal transmitted from at least one non-serving base station; the transmission characteristics comprising a transmission mode and a traffic-to-pilot ratio (TPR) variation of the at least one non-serving base station; and perform at least one of interference cancellation, demodulation, or providing an improved channel quality indicator (CQI) using the received transmission mode and the TPR variation of the at least one non-serving base station. ### Claim 51 (depends on 50) The non-transitory computer-readable medium of claim 50, wherein the transmission characteristics comprises one or more interference characteristics of the signal transmitted from the at least one non-serving base station. ### Claim 52 (depends on 51) The non-transitory computer-readable medium of claim 51, wherein the one or more interference characteristics further comprises at least one a recently used radio network temporary identifier (RNTI) value, an interfering cell (IC), a carrier type, a carrier release, a virtual cell identification (ID), a control span, statistics regarding a loading level of at least one of almost blank subframes (ABSs) and non-ABSs; statistics regarding previously, used traffic-to-pilot ratios (TPRs); a previously used TPR, statistics regarding a previously used modulation order, and all the previously used modulation order. ### Claim 53 (depends on 50) The non-transitory computer-readable medium of claim 50, wherein the information indicates the TPR variation of one of quadrature phase-shift keying (QPSK), 16-quadrature amplitude modulation (QAM) or 64-QAM.