# US 8,787,264 B2 · Method and apparatus for processing shared sub-packets in a communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,787,264 B2 - Document ID: US8787264B2 - Status: Granted - Kind: B2 - Application number: 11/608,216 - Filed: 2006-12-07 - Published: 2007-04-05 - Granted: 2014-07-22 - Earliest claimed: 2001-10-15 - Assignees: QUALCOMM Incorporated - Applicants: Joseph P. Odenwalder; Edward G. Tiedemann, Jr.; Tao Chen; Stein A. Lundby; Yongbin Wei; David Puig Oses - Inventors: Joseph P. Odenwalder; Edward G. Tiedemann, Jr.; Tao Chen; Stein A. Lundby; Yongbin Wei; David Puig Oses - Web page: https://patentgrep.com/patent/US8787264B2 ## CPC - H04W 72/04: Wireless resource allocation - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04B 2201/70701: featuring pilot assisted reception - H04L 1/0025: {Transmission of mode-switching indication} - H04L 1/0026: {Transmission of channel quality indication} - H04W 36/00: Hand-off or reselection arrangements - H04W 48/12: using downlink control channel - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Method and Apparatus for Processing Shared Sub-packets in a Communication System are disclosed. A communication system providing both voice and data services allows for a plurality of subscriber station to share a data sent in a unit of a forward traffic channel. To provide information required by the subscriber stations to determine that a unit of the forward traffic channel is shared, and to correctly decode the data, different control channel structures are described. Additionally, the control channel structures provides for more efficient signaling of code channel assignment. ## Claims ### Claim 1 A method, executed by an apparatus configured for communication in a wireless network, for processing shared sub-packets at a subscriber station, the method comprising: demodulating a first control channel message on a first control channel, the first control channel message comprising an identifier corresponding to a plurality of subscriber stations and a plurality of second control channels, the first control channel and plurality of second control channels having different Walsh codes; demodulating at least one of the plurality of second control channels comprising information enabling a subscriber station to demodulate a traffic channel if the identifier within the first control channel message corresponds to an identity of the subscriber station; and demodulating the traffic channel in accordance with said enabling information. ### Claim 2 (depends on 1) The method as claimed in claim 1, wherein said demodulating a first control channel message comprising an identifier corresponding to a plurality of subscriber stations comprises: demodulating a pre-determined control channel. ### Claim 3 (depends on 1) The method as claimed in claim 1, wherein said demodulating at least one of the plurality of second control channels comprising information enabling a subscriber station to demodulate a traffic channel if the identifier within the first control channel message corresponds to an identity of the subscriber station comprises: determining a position of the identifier within the received first control channel message; selecting a second control channel in accordance with said determined position; and demodulating said selected second control channel. ### Claim 4 (depends on 3) The method as claimed in claim 3, wherein said selecting a second control channel in accordance with said determined position comprises: establishing a code encoding a second control channel in accordance with a relationship between said determined position and the code; and demodulate the second control channel encoded by said established code. ### Claim 5 (depends on 1) The method as claimed in claim 1, wherein said demodulating the traffic channel in accordance with said enabling information comprises: determining a size of traffic channel unit and a number of code channels in accordance with the enabling information if the traffic channel unit is code multiplexed; and demodulate the traffic channel unit. ### Claim 6 (depends on 1) The method as claimed in claim 1, wherein said demodulating the traffic channel in accordance with said acquired enabling information comprises: determining a number of sub-divisions of traffic channel unit and a starting sub-division in accordance with the enabling information if the traffic channel unit is time multiplexed; and demodulate the traffic channel unit. ### Claim 7 A method, executed by an apparatus configured for communication in a wireless network, for processing shared sub-packets in a communication system, the method comprising: generating a first control channel message on a first control channel, the first control channel message comprising an identifier corresponding to a plurality of subscriber stations and a plurality of second control channels, the first control channel and plurality of second control channels having different Walsh codes; generating a plurality of second control channels, each second control channel comprising an identifier of one of the plurality of subscriber stations and information enabling the one of the plurality of subscriber stations to demodulate a traffic channel; and transmitting the control channels. ### Claim 8 (depends on 7) The method as claimed in claim 7, wherein said generating a plurality of second control channels, each second control channel comprising an identifier of one of the plurality of subscriber stations and information enabling the one of the plurality of subscriber stations to demodulate a traffic channel comprises: generating at least one second control channel comprising a number of code channels encoding a unit of the traffic channel. ### Claim 9 (depends on 7) The method as claimed in claim 7, wherein said generating a plurality of second control channels, each second control channel comprising an identifier of one of the plurality of subscriber stations and information enabling the one of the plurality of subscriber stations to demodulate a traffic channel comprises: generating at least one second control channel comprising a number of sub-divisions and a starting sub-division of a unit of the traffic channel. ### Claim 10 (depends on 7) The method as claimed in claim 7, wherein said transmitting the control channels comprises: transmitting the first control channel message at a power required by a subscriber station with the worst forward link quality metric for which the first control channel message is intended. ### Claim 11 (depends on 10) The method as claimed in claim 10, further comprising: transmitting the plurality of second control channels at a power required by the at least one subscriber station for which the plurality of second control channels is intended. ### Claim 12 An apparatus configured for communication in a wireless network, for processing shared sub-packets at a subscriber station, the apparatus comprising: a memory; and at least one processor coupled to the memory and configured: to demodulate a first control channel message on a first control channel, the first control channel message comprising an identifier corresponding to a plurality of subscriber stations and a plurality of second control channels, the first control channel and plurality of second control channels associated with different Walsh codes; to demodulate at least one of the plurality of second control channels comprising information enabling a subscriber station to demodulate a traffic channel if the identifier within the first control channel message corresponds to an identity of the subscriber station; and to demodulate the traffic channel in accordance with said enabling information. ### Claim 13 (depends on 12) The apparatus as claimed in claim 12, in which the processor is further configured to demodulate a first control channel message comprising an identifier corresponding to a plurality of subscriber stations by demodulating a pre-determined control channel. ### Claim 14 (depends on 12) The apparatus as claimed in claim 12, in which the processor is further configured to demodulate at least one of the plurality of second control channels comprising information enabling a subscriber station to demodulate a traffic channel if the identifier within the first control channel message corresponds to an identity of the subscriber station by: determining a position of the identifier within the received first control channel message; selecting a second control channel in accordance with said determined position; and demodulating said selected second control channel. ### Claim 15 (depends on 14) The apparatus as claimed in claim 14, in which the processor is further configured to select a second control channel in accordance with said determined position by establishing a code encoding a second control channel in accordance with a relationship between said determined position and the code; and demodulating the second control channel encoded by said established code. ### Claim 16 (depends on 12) The apparatus as claimed in claim 12, in which the processor is further configured to demodulate the traffic channel in accordance with said enabling information by: determining a size of traffic channel unit and a number of code channels in accordance with the enabling information if the traffic channel unit is code multiplexed; and demodulating the traffic channel unit. ### Claim 17 (depends on 12) The apparatus as claimed in claim 12, in which the processor is further configured to demodulate the traffic channel in accordance with said acquired enabling information by: determining a number of sub-divisions of traffic channel unit and a starting sub-division in accordance with the enabling information if the traffic channel unit is time multiplexed; and demodulating the traffic channel unit. ### Claim 18 An apparatus configured for communication in a wireless network, for processing shared sub-packets in a communication system, the apparatus comprising: a memory; and at least one processor coupled to the memory and configured: to generate a first control channel message on a first control channel, the first control channel message comprising an identifier corresponding to a plurality of subscriber stations and a plurality of second control channels, the first control channel and plurality of second control channels having different Walsh codes; to generate a plurality of second control channels, each second control channel comprising an identifier of one of the plurality of subscriber stations and information enabling the one of the plurality of subscriber stations to demodulate a traffic channel; and to transmitting the control channels. ### Claim 19 (depends on 18) The apparatus as claimed in claim 18, in which the processor is further configured to generate a plurality of second control channels, each second control channel comprising an identifier of one of the plurality of subscriber stations and information enabling the one of the plurality of subscriber stations to demodulate a traffic channel by generating at least one second control channel comprising a number of code channels encoding a unit of the traffic channel. ### Claim 20 (depends on 18) The apparatus as claimed in claim 18, in which the processor is further configured to generate a plurality of second control channels, each second control channel comprising an identifier of one of the plurality of subscriber stations and information enabling the one of the plurality of subscriber stations to demodulate a traffic channel by generating at least one second control channel comprising a number of sub-divisions and a starting sub-division of a unit of the traffic channel. ### Claim 21 (depends on 18) The apparatus as claimed in claim 18, in which the processor is further configured to transmit the control channels by transmitting the first control channel message at a power required by a subscriber station with the worst forward link quality metric for which the first control channel message is intended. ### Claim 22 (depends on 21) The apparatus as claimed in claim 21, in which the processor is further configured to transmit the plurality of second control channels at a power required by the at least one subscriber station for which the plurality of second control channels is intended.