# US 2010/0165873 A1 · Uplink and downlink channel configuration method in radio communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0165873 A1 - Document ID: US20100165873A1 - Status: Published application - Kind: A1 - Application number: 12/278,941 - Filed: 2007-02-06 - Published: 2010-07-01 - Earliest claimed: 2006-02-08 - Assignees: Ntt Docomo, Inc. - Inventors: Kenichi Higuchi; Mamoru Sawahashi; Hiroyuki Atarashi - Web page: https://patentgrep.com/patent/US20100165873A1 ## CPC - H04W 48/12: using downlink control channel - H04W 68/00: User notification, e.g. alerting and paging, for incoming communication, change of service or the like - H04W 72/30: Resource management for broadcast services - H04W 74/00: Wireless channel access - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A disclosed downlink channel configuration method in a radio communication system includes a step of including a broadcast channel, a paging channel, and a downlink shared channel as transport channels; a step of including as a physical channel a physical downlink shared channel to which the downlink shared channel of the transport channel is mapped; and a step of sharing the downlink shared channel by plural users without using a dedicated channel separately allocated to each of the users. In a preferred embodiment, as the physical channels, there are further included a physical broadcast channel as an independent radio resource to which the broadcast channel of the transport channel is mapped and a physical paging channel as an independent radio resource to which the paging channel of the transport channel is mapped. ## Claims ### Claim 1 A downlink channel configuration method in a radio communication system, comprising: a step of including a broadcast channel, a paging channel, and a downlink shared channel as transport channels; a step of including as a physical channel a physical downlink shared channel to which the downlink shared channel of the transport channel is mapped; and a step of sharing the downlink shared channel by plural users without using a dedicated channel separately allocated to each of the users. ### Claim 2 (depends on 1) The downlink channel configuration method according to claim 1, wherein as the physical channel, there is further included a physical broadcast channel as an independent radio resource to which the broadcast channel of the transport channel is mapped. ### Claim 3 (depends on 2) The downlink channel configuration method according to claim 2, wherein the physical broadcast channel transmits the same broadcast information in plural sectors controlled by a same base station. ### Claim 4 (depends on 1) The downlink channel configuration method according to claim 1, wherein as the physical channel, there is further included a physical paging channel as an independent radio resource to which the paging channel of the transport channel is mapped. ### Claim 5 (depends on 1) The downlink channel configuration method according to claim 1, wherein the paging channel of the transport channel is mapped to the physical downlink shared channel. ### Claim 6 (depends on 4) The downlink channel configuration method according to claim 4, wherein the physical paging channel transmits the same paging information in plural sectors controlled by a same base station. ### Claim 7 (depends on 1) The downlink channel configuration method according to claim 1, wherein as the physical channels, there is further included: a physical paging channel as an independent radio resource to which the paging channel of the transport channel is mapped; and an independent paging indicator channel for transmitting paging indicator information indicating a position on the radio resource to which the physical paging channel is mapped. ### Claim 8 (depends on 7) The downlink channel configuration method according to claim 7, wherein the paging indicator channel transmits the same paging information in plural sectors controlled by a same base station. ### Claim 9 (depends on 1) The downlink channel configuration method according to claim 1, wherein as the physical channel, there is further included a Multimedia Broadcast Multicast Service (MBMS) channel as an independent radio resource to which the downlink shared channel of the transport channel is mapped. ### Claim 10 (depends on 9) The downlink channel configuration method according to claim 9, wherein the Multimedia Broadcast Multicast Service (MBMS) channel transmits the same MBMS information in plural cells or sectors in a prescribed area. ### Claim 11 (depends on 1) The downlink channel configuration method according to claim 1, wherein as the physical channel, there is further included a pilot channel for transmitting a reference symbol. ### Claim 12 (depends on 1) The downlink channel configuration method according to claim 1, wherein as the physical channel, there is further included a synchronization channel for transmitting a signal including information for performing at least one of symbol synchronization, radio frame synchronization, cell identification, and identification of cell group including plural cells. ### Claim 13 (depends on 1) The downlink channel configuration method according to claim 1, wherein as the physical channel, there is further included a layer 1/layer 2 control channel for transmitting a signal including control information of the layers 1 and 2. ### Claim 14 (depends on 1) The downlink channel configuration method according to claim 1, wherein as the physical channels, there is further included: a physical paging channel as an independent radio resource to which the paging channel of the transport channel is mapped; a layer 1/layer 2 control channel for transmitting a signal including control information related to the layers 1 and 2, wherein paging indicator information indicating a position on the radio resource to which the physical paging channel is mapped is transmitted by the layer 1/layer 2 control channel. ### Claim 15 An uplink channel configuration method in a radio communication system, comprising: a step of including a random access channel and an uplink shared channel as transport channels; a step of including as physical channels a physical random access channel as an independent radio resource to which the random access channel of the transport channel is mapped and a physical uplink shared channel as an independent radio resource to which the uplink shared channel of the transport channel is mapped; and a step of sharing the uplink shared channel by plural users without using a dedicated channel separately allocated to each of the users. ### Claim 16 (depends on 15) The uplink channel configuration method according to claim 15, wherein as the physical channel, there is further included a physical random access channel as an independent radio resource to which the random access channel of the transport channel is mapped. ### Claim 17 (depends on 15) The uplink channel configuration method according to claim 15, wherein as the physical channel, there is further included a pilot channel for transmitting a reference symbol. ### Claim 18 (depends on 15) The uplink channel configuration method according to claim 15, wherein as the physical channel, there is further included a layer 1/layer 2 control channel for transmitting a signal including control information of the layers 1 and 2. ### Claim 19 (depends on 15) The uplink channel configuration method according to claim 15, wherein as the physical channel, there is further included a synchronization channel for transmitting a signal for performing transmission timing control of signals of uplink users. ### Claim 20 (depends on 15) The uplink channel configuration method according to claim 15, wherein as the physical channel, there is further included: a pilot channel for transmitting a reference symbol, wherein the pilot channel is used as a signal for performing transmission timing control of signals of uplink users.