# US 2014/0153527 A1 · Method and device for allocating physical hybrid arq indicator channel, and user equipment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153527 A1 - Document ID: US20140153527A1 - Status: Published application - Kind: A1 - Application number: 14/176,372 - Filed: 2014-02-10 - Published: 2014-06-05 - Earliest claimed: 2012-08-08 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Wei Ni; Jiayin Zhang; Xiaotao Ren - Web page: https://patentgrep.com/patent/US20140153527A1 ## CPC - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)} - H04L 1/1864: {ARQ related signaling (H04L1/1607 takes precedence)} - H04L 1/1893: {Physical mapping arrangements (physical resource mapping in general H04L5/00)} - H04L 1/1896: {ARQ related signaling} - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04L 1/1887: {Scheduling and prioritising arrangements} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Embodiments of the present invention disclose a method and a device for allocating a physical hybrid ARQ indicator channel, and a user equipment. The method for allocating a physical hybrid ARQ indicator channel includes: determining, according to an extended parameter, a cyclic shift value of a demodulation reference signal that is indicated in a Physical Downlink Control Channel PDCCH, and a minimum labeling index value of a physical resource block PRB that is occupied by an uplink data transmission block, a PHICH index number that corresponds to the uplink data transmission block, where the extended parameter includes a cell-specific parameter and a user-equipment-specific parameter; and allocating a PHICH to the uplink data transmission block according to the PHICH index number. ## Claims ### Claim 1 A method for allocating a physical hybrid (ARQ) indicator channel, comprising: determining, according to an extended parameter, a cyclic shift value of a demodulation reference signal that is indicated in a Physical Downlink Control Channel (PDCCH), and a minimum labeling index value of a physical resource block (PRB) that is occupied by an uplink data transmission block, a physical hybrid ARQ indicator channel (PHICH) index number that corresponds to the uplink data transmission block, wherein the extended parameter comprises a cell-specific parameter and a user-equipment-specific parameter; and allocating a PHICH to the uplink data transmission block according to the PHICH index number. ### Claim 2 (depends on 1) The method for allocating a physical hybrid ARQ indicator channel according to claim 1, wherein the determining a PHICH index number that corresponds to the uplink data transmission block specifically comprises: determining, according to the following formula, the PHICH index number that corresponds to the uplink data transmission block, wherein the PHICH index number comprises an index group number and an index sequence number: nPHICHgroup=[IPRB—RA+nDMRS+k·n)] mod NPHICHgroup+IPHICHNPHICHgroup nPHICHseq={└IPRB—RA/NPHICHgroup┘+nDMRS+k·n)} mod 2NSFPHICH wherein nPHICHgroup is the index group number, nPHICHseq is the index sequence number, NPHICHgroup is the number of PHICH groups, NSFPHICH is a spreading factor, k is a value of the cell-specific parameter, n is a value of the user-equipment-specific parameter, nDMRS is the cyclic shift value of the demodulation reference signal, IPRB—RA is the minimum labeling index of the PRB that is occupied by the uplink data transmission block or an index that is obtained after the minimum labeling index is incremented by one, and IPHICH is set to 1 when the uplink data transmission block is transmitted in a 4th or a 9th subframe in uplink-downlink subframe configuration 0 of a time division duplex (TDD) system, or set to 0 in other cases. ### Claim 3 (depends on 1) The method for allocating a physical hybrid ARQ indicator channel according to claim 1, wherein: the value of the user-equipment-specific parameter is a preset value; or the value of the user-equipment-specific parameter is a corresponding value that is determined by a radio remote head (RRH) at which a user equipment UE resides; or the value of the user-equipment-specific parameter is a corresponding value that is determined by a group in which the UE resides, wherein UEs in a same RRH are a same group or UEs that feed back a same precoding matrix indicator (PMI) are a same group. ### Claim 4 (depends on 1) The method for allocating a physical hybrid ARQ indicator channel according to claim 1, wherein: the cell-specific parameter k=2NSFPHICH; or the cell-specific parameter k is a maximum number of UEs allowed to reside at an RRH at which a UE resides; or the cell-specific parameter k is the largest among upper limits on the numbers of UEs that can be accommodated by RRHs in a cell; or the cell-specific parameter k is an upper limit on the number of UEs that can be accommodated by any RRH in a cell. ### Claim 5 (depends on 1) The method for allocating a physical hybrid ARQ indicator channel according to claim 1, further comprising: transmitting, through the PDCCH or higher-layer signaling, the user-equipment-specific parameter to a UE; and transmitting, through the PDCCH or the higher-layer signaling, the cell-specific parameter to the UE. ### Claim 6 A device for allocating a physical hybrid ARQ indicator channel, comprising: a first determining unit, configured to determine, according to an extended parameter, a cyclic shift value of a demodulation reference signal that is indicated in a Physical Downlink Control Channel (PDCCH), and a minimum labeling index value of a physical resource block (PRB) that is occupied by an uplink data transmission block, a PHICH index number that corresponds to the uplink data transmission block, wherein the extended parameter comprises a cell-specific parameter and a user-equipment-specific parameter; and an allocating unit, configured to allocate a PHICH to the uplink data transmission block according to the PHICH index number that is determined by the first determining unit. ### Claim 7 (depends on 6) The device for allocating a physical hybrid ARQ indicator channel according to claim 6, wherein the first determining unit is specifically configured to determine, according to the following formula, the PHICH index number that corresponds to the uplink data transmission block, wherein the PHICH index number comprises an index group number and an index sequence number: nPHICHgroup=[IPRB—RA+nDMRS+k·n)] mod NPHICHgroup+IPHICHNPHICHgroup nPHICHseq={└IPRB—RA/NPHICHgroup┘+nDMRS+k·n)} mod 2NSFPHICH wherein nPHICHgroup the index group number nPHICHseq is the index sequence number NPHICHgroup is the number of PHICH groups, NSFPHICH is a spreading factor, k is a value of the cell-specific parameter, n is a value of the user-equipment-specific parameter, nDMRS is the cyclic shift value of the demodulation reference signal, k·n is a value of the extended parameter, IPRB—RA is the minimum labeling index of the PRB that is occupied by the uplink data transmission block or an index that is obtained after the minimum labeling index is incremented by one, and IPHICH is set to 1 when the uplink data transmission block is transmitted in a 4th or a 9th subframe in uplink-downlink subframe configuration 0 of a TDD system, or set to 0 in other cases. ### Claim 8 (depends on 6) The device for allocating a physical hybrid ARQ indicator channel according to claim 6, wherein the value of the user-equipment-specific parameter is a preset value; or the value of the user-equipment-specific parameter is a corresponding value that is determined by a radio remote head (RRH) at which a user equipment UE resides; or the value of the user-equipment-specific parameter is a corresponding value that is determined by a group in which the UE resides, wherein UEs in a same RRH are a same group or UEs that feed back a same precoding matrix indicator (PMI) are a same group; and the cell-specific parameter k=2NSFPHICH; or the cell-specific parameter k is an upper limit on the number of UEs that can be accommodated by the RRH at which the UE resides; or the cell-specific parameter k is the largest among upper limits on the numbers of UEs that can be accommodated by RRHs in a cell; or the cell-specific parameter k is an upper limit on the number of UEs that can be accommodated by any RRH in a cell. ### Claim 9 (depends on 6) The device for allocating a physical hybrid ARQ indicator channel according to claim 6, further comprising: a sending unit, configured to transmit, through the PDCCH or higher-layer signaling, the user-equipment-specific parameter to a UE; and transmit, through the PDCCH or the higher-layer signaling, the cell-specific parameter to the UE. ### Claim 10 A method for allocating a physical hybrid ARQ indicator channel, comprising: determining, according to an extended parameter, a cyclic shift value of a demodulation reference signal that is indicated in a Physical Downlink Control Channel (PDCCH), and a minimum labeling index value of a physical resource block (PRB) that is occupied by an uplink data transmission block, a PHICH index number that corresponds to the uplink data transmission block, wherein the extended parameter comprises a cell-specific parameter and a user-equipment-specific parameter; and determining, through the PHICH index number, a corresponding PHICH to be allocated to the uplink data transmission block; and receiving, on the determined PHICH, acknowledgement information that corresponds to the uplink data transmission block. ### Claim 11 (depends on 10) The method for allocating a physical hybrid ARQ indicator channel according to claim 10, wherein the determining a PHICH index number that corresponds to the uplink data transmission block specifically comprises: determining, according to the following formula, the PHICH index number that corresponds to the uplink data transmission block, wherein the PHICH index number comprises an index group number and an index sequence number: nPHICHgroup=[IPRB—RA+nDMRS+k·n)] mod NPHICHgroup+IPHICHNPHICHgroup nPHICHseq={└IPRB—RA/NPHICHgroup┘+nDMRS+k·n)} mod 2NSFPHICH wherein nPHICHgroup is the index group number nPHICHseq is the index sequence number, NPHICHgroup is the number of PHICH groups, NSFPHICH is a spreading factor, k is a value of the cell-specific parameter, n is a value of the user-equipment-specific parameter, nDMRS is the cyclic shift value of the demodulation reference signal, IPRB—RA is the minimum labeling index of the PRB that is occupied by the uplink data transmission block or an index that is obtained after the minimum labeling index is incremented by one, and IPHICH is set to 1 when the uplink data transmission block is transmitted in a 4th or a 9th subframe in uplink-downlink subframe configuration 0 of a TDD system, or set to 0 in other cases. ### Claim 12 (depends on 10) The method for allocating a physical hybrid ARQ indicator channel according to claim 10, wherein the value of the user-equipment-specific parameter is a preset value; or the value of the user-equipment-specific parameter is a corresponding value that is determined by a radio remote head RRH at which a user equipment UE resides; or the value of the user-equipment-specific parameter is a corresponding value that is determined by a group in which the UE resides, wherein UEs in a same RRH are a same group or UEs that feed back a same precoding matrix indicator (PMI) are a same group. ### Claim 13 (depends on 10, 11) The method for allocating a physical hybrid ARQ indicator channel according to claim 10 or 11, wherein: the cell-specific parameter k=2NSFPHICH; or the cell-specific parameter k is an upper limit on the number of UEs that can be accommodated by an RRH at which a UE resides; or the cell-specific parameter k is the largest among upper limits on the numbers of UEs that can be accommodated by RRHs in a cell; or the cell-specific parameter k is an upper limit on the number of UEs that can be accommodated by any RRH in a cell. ### Claim 14 (depends on 10) The method for allocating a physical hybrid ARQ indicator channel according to claim 10, further comprising: acquiring, through the PDCCH or higher-layer signaling, the user-equipment-specific parameter; and acquiring, through the PDCCH or the higher-layer signaling, the cell-specific parameter. ### Claim 15 A user equipment, comprising: a second determining unit, configured to determine, according to an extended parameter, a cyclic shift value of a demodulation reference signal that is indicated in a Physical Downlink Control Channel (PDCCH), and a minimum labeling index value of a physical resource block (PRB) that is occupied by an uplink data transmission block, a PHICH index number that corresponds to the uplink data transmission block, wherein the extended parameter comprises a cell-specific parameter and a user-equipment-specific parameter; a third determining unit, configured to determine, through the PHICH index number that is determined by the second determining unit, a corresponding PHICH to be allocated to the uplink data transmission block; and a receiving unit, configured to receive, on the determined PHICH, acknowledgement information that corresponds to the uplink data transmission block. ### Claim 16 (depends on 15) The user equipment according to claim 15, wherein the second determining unit is specifically configured to determine, according to the following formula, the PHICH index number that corresponds to the uplink data transmission block, wherein the PHICH index number comprises an index group number and an index sequence number: nPHICHgroup=[IPRB—RA+nDMRS+k·n)] mod NPHICHgroup+IPHICHNPHICHgroup nPHICHseq={└IPRB—RA/NPHICHgroup┘+nDMRS+k·n)} mod 2NSFPHICH wherein nPHICHgroup is the index group number, nPHICHseq is the index sequence number, NPHICHgroup is the number of PHICH groups, NSFPHICH is a spreading factor, k is a value of the cell-specific parameter, n is a value of the user-equipment-specific parameter, nDMRS is the cyclic shift value of the demodulation reference signal, k·n is a value of the extended parameter, IPRB—RA is the minimum labeling index of the PRB that is occupied by the uplink data transmission block or an index that is obtained after the minimum labeling index is incremented by one, and IPHICH is set to 1 when the uplink data transmission block is transmitted in a 4th or a 9th subframe in uplink-downlink subframe configuration 0 of a TDD system, or set to 0 in other cases. ### Claim 17 (depends on 15) The user equipment according to claim 15, wherein the value of the user-equipment-specific parameter is a preset value; or the value of the user-equipment-specific parameter is a corresponding value that is determined by a radio remote head RRH at which the user equipment UE resides; or the value of the user-equipment-specific parameter is a corresponding value that is determined by a group in which the UE resides, wherein UEs in a same RRH are a same group or UEs that feed back a same precoding matrix indicator PMI are a same group; and the cell-specific parameter k=2NSFPHICH; or the cell-specific parameter k is an upper limit on the number of UEs that can be accommodated by the RRH at which the UE resides; or the cell-specific parameter k is the largest among upper limits on the numbers of UEs that can be accommodated by RRHs in a cell; or the cell-specific parameter k is an upper limit on the number of UEs that can be accommodated by any RRH in a cell. ### Claim 18 (depends on 15) The user equipment according to claim 15, wherein the receiving unit is further configured to acquire, through the PDCCH or higher-layer signaling, the user-equipment-specific parameter; and acquire, through the PDCCH or the higher-layer signaling, the cell-specific parameter.