# US 9,520,976 B2 · Mobile communication method, wireless base station and mobile station > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,520,976 B2 - Document ID: US9520976B2 - Status: Granted - Kind: B2 - Application number: 14/322,265 - Filed: 2014-07-02 - Published: 2015-01-08 - Granted: 2016-12-13 - Earliest claimed: 2013-07-05 - Assignees: Ntt Docomo, Inc. - Applicants: NTT DoCoMo, Inc. - Inventors: Anxin Li; Atsushi Harada - Web page: https://patentgrep.com/patent/US9520976B2 ## CPC - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0037: {Inter-user or inter-terminal allocation} - H04L 5/0016: {Time-frequency-code} - H04L 5/0073: {Allocation arrangements that take into account other cell interferences} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract The embodiments of the present invention provide a mobile communication method, a wireless base station and a mobile station. The mobile communication method according to the embodiment of the present invention is applied to the wireless base station. The method comprises: determining resource group offset information used for a mobile station; offsetting an initial physical channel resource group allocated to the mobile station according to the resource group offset information; determining cyclic shift information of demodulation reference signal used for the mobile station according to unused physical channel resources in the offset physical channel resource group; and transmitting the resource group offset information and the cyclic shift information to the mobile station. ## Claims ### Claim 1 A mobile communication method applied to a wireless base station, the method comprising: determining resource group offset information used for a mobile station; offsetting an initial physical channel resource group allocated to the mobile station according to the resource group offset information; determining cyclic shift information of demodulation reference signal used for the mobile station according to unused physical channel resources in the offset physical channel resource group; and transmitting the resource group offset information and the cyclic shift information to the mobile station, wherein the determining resource group offset information used for a mobile station comprises: determining an order of downlink control information (DCI) of the mobile station in scheduling grant signaling, and determining the resource group offset information according to the order of DCI in the scheduling grant signaling. ### Claim 2 (depends on 1) The method according to claim 1, wherein the determining the resource group offset information according to the order of DCI in the scheduling grant signaling comprises: determining a first shift information of a first shift amount by which the initial physical channel resource group is offset according to the order of DCI in the scheduling grant signaling; the determining resource group offset information to be used by a mobile station further comprises: determining second shift information of the mobile station, wherein the second shift information is absolute position indicating information or relative position indicating information; and using the first shift information and the second shift information as the resource group offset information used for the mobile station. ### Claim 3 (depends on 2) The method according to claim 2, wherein the second shift information is the absolute position indicating information, wherein the absolute position indicating information indicates a target physical resource block to which the initial physical channel resource group is offset, wherein the target physical resource block is one of physical resource blocks which are allocated to an indicating channel of physical uplink control channel (PUCCH) in uplink subframes, and the offsetting an initial physical channel resource group allocated to the mobile station according to the resource group offset information comprises: offsetting the initial physical channel resource group to the target physical resource block, and further offsetting the initial physical channel resource group by the first shift amount in the target physical resource block. ### Claim 4 (depends on 2) The method according to claim 2, wherein the second shift information is the relative position indicating information, wherein the relative position indicating information indicates a second shift amount by which the initial physical channel resource group is offset, and the offsetting an initial physical channel resource group allocated to the mobile station according to the resource group offset information comprises: adding up the first shift amount and the second shift amount so as to obtain a third shift amount, and offsetting the initial physical channel resource group by the third shift amount. ### Claim 5 (depends on 2) The method according to claim 2, wherein when there are a plurality of mobile stations, the number of the mobile stations using the absolute position indicating information and the number of the mobile stations using the relative position indicating information is determined according to the number of Physical Uplink Control Channel (PUCCH) in uplink subframes. ### Claim 6 (depends on 2) The method according to claim 2, wherein the transmitting the resource group offset information to the mobile station comprises: transmitting the second shift information to the mobile station through a Radio Resource Control (RRC) signaling. ### Claim 7 (depends on 1) The method according to claim 1, wherein the offsetting an initial physical channel resource group allocated to the mobile station according to the resource group offset information comprises: in frequency domain, offsetting physical channel resource group initially allocated to the mobile station according the resource group offset information. ### Claim 8 (depends on 1) The method according to claim 1, further comprising: transmitting, to the mobile station, response information for a signal from the mobile station through physical channel resource which is determined according to the resource group offset information and the cyclic shift information of the mobile station. ### Claim 9 A mobile communication method applied to a mobile station, the method comprising: receiving a signaling from a wireless base station; obtaining cyclic shift information of demodulation reference signal and resource group offset information of the mobile station according to the received signaling; determining physical channel resource which the mobile station uses for receiving response information from the wireless base station according to the resource group offset information and the cyclic shift information, wherein the obtaining resource group offset information of the mobile station according to the received signal comprises: obtaining an order of Downlink Control Information (DCI) of the mobile station in scheduling grant signal according to the received signaling, and determining the resource group offset information according to the order of the DCI in the scheduling grant signal. ### Claim 10 (depends on 9) The method according to claim 9, wherein the determining the resource group offset information according to the order of the DCI in the scheduling grant signal comprises: determining a first shift information of the resource group offset information according to the order of the DCI in the scheduling grant signal; the obtaining resource group offset information of the mobile station according to the received signaling further comprises: obtaining a second shift information of the resource group offset information according to the received signaling, wherein a first shift amount by which an initial physical channel resource group of the mobile station is offset is determined according to the order of the DCI in the scheduling grant signal. ### Claim 11 (depends on 10) The method according to claim 10, wherein the second shift information is absolute position indicating information, wherein the absolute position indicating information indicates a target physical resource block to which the initial physical channel resource group is offset, wherein the target physical resource block is one of physical resource blocks which are allocated to an indicating channel of Physical Uplink Control Channel (PUCCH) in uplink subframes, and the determining physical channel resource which the mobile station uses for receiving response information from the wireless base station according to the resource group offset information and the cyclic shift information comprises: offsetting the initial physical channel resource group allocated to the mobile station by the wireless base station to the target physical resource block, further offsetting the initial physical channel resource group by the first shift amount in the target physical resource block, and determining the physical channel resource in the offset physical channel resource group according to the cyclic shift information. ### Claim 12 (depends on 10) The method according to claim 10, wherein the second shift information is relative position indicating information, wherein the relative position indicating information indicates a second shift amount by which the initial physical channel resource group is offset, and the determining physical channel resource which the mobile station uses for receiving response information from the wireless base station according to the resource group offset information and the cyclic shift information comprises: adding up the first shift amount and the second shift amount so as to obtain a third shift amount, offsetting the initial physical channel resource group by the third shift amount, and determining the physical channel resource in the offset physical channel resource group according to the cyclic shift information. ### Claim 13 A wireless base station, comprising: a resource group offset information determination unit, configured to determine resource group offset information used for a mobile station; resource group offset unit, configured to offset an initial physical channel resource group allocated to the mobile station according to the resource group offset information; an cyclic shift information determination unit, configured to determine an cyclic shift information of an demodulation reference signal used for the mobile station according to unused physical channel resources in the offset physical channel resource group; and a transmitting unit, configured to transmit the resource group offset information and the cyclic shift information to the mobile station, wherein the resource group offset information determination unit determines an order of Downlink Control Information (DCI) of the mobile station in scheduling grant signaling, and determines the resource group offset information according to the order of the DCI in the scheduling grant signaling. ### Claim 14 (depends on 13) The wireless base station according to claim 13, wherein the resource group offset information determination unit comprises: a first determination module, configured to determine a first shift information of a first shift amount by which the initial physical channel resource group is offset according to the order of the DCI in the scheduling grant signaling; a second determination module, setting a second shift information of the mobile station, wherein the second shift information is absolute position indicating information or relative position indicating information; and a third determination module, configured to use the first shift information and the second shift information as the resource group offset information used for the mobile station. ### Claim 15 (depends on 14) The wireless base station according to claim 14, wherein the second shift information is the absolute position indicating information, wherein the absolute position indicating information indicates a target physical resource block to which the initial physical channel resource group is offset, wherein the target physical resource block is one of physical resource blocks which are allocated to an indicating channel of Physical Uplink Control Channel (PUCCH) in uplink subframes, and the resource group offset unit offsets the initial physical channel resource group to the target physical resource block, and further offset the initial physical channel resource group by the first shift amount in the target physical resource block. ### Claim 16 (depends on 14) The wireless base station according to claim 14, wherein the second shift information is the relative position indicating information, wherein the relative position indicating information indicates a second shift amount by which the initial physical channel resource group is offset, and the resource group offset unit adds up the first shift amount and the second shift amount so as to obtain a third shift amount, and offsets the initial physical channel resource group by the third shift amount. ### Claim 17 (depends on 14) The wireless base station according to claim 14, wherein when there are a plurality of the mobile stations, the second determination module determines the number of the mobile stations using the absolute position indicating information and the number of the mobile stations using the relative position indicating information according to the number of Physical Uplink Control Channels (PUCCH) in uplink subframes.