# US RE48,742 E1 · Systems and methods for transmitting data information messages on a downlink of a wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US RE48,742 E1 - Document ID: USRE48742E1 - Status: Granted - Kind: E1 - Application number: 16/033,897 - Filed: 2018-07-12 - Granted: 2021-09-14 - Earliest claimed: 2013-07-03 - Assignees: Futurewei Technologies, Inc. - Applicants: Futurewei Technologies, Inc. - Inventors: Fredrik Berggren; Anthony C. K. Soong - Web page: https://patentgrep.com/patent/USRE48742E1 ## CPC - H04W 72/042 - H04L 1/1854: {Scheduling and prioritising arrangements} - 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 5/0023: {Time-frequency-space} - H04L 5/1469: {using time-sharing} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Embodiments are provide for communicating data or other non-control information messages within a downlink control channel directly, rather than in a data channel or broadcast channel. Thereby, radio resource utilization can be substantially improved in the cellular system, such as in the case of transmitting smaller data packets. In an embodiment, a transmitter arranges a set of time-frequency radio resources, associated with a downlink control channel, for transmitting information other than control information sent on the downlink control channel. The transmitter then sends, on the set of time-frequency radio resources, a data information message comprising the information other than the control information. The information other than the control information comprises one of user-specific data information and broadcast data information. A receiver then receives on the downlink control channel, control information and the data information message. ## Claims ### Claim 1 A method by a network component, the method comprising: arranging a set of time-frequency radio resources, associated with a downlink control channel, for transmitting information other than control information sent on the downlink control channel; and transmitting, on the set of time-frequency radio resources, a data information message comprising the information other than the control information, wherein the data information message has a size that is the same as a size of at least one of a transport block for a Physical Downlink Shared Channel (PDSCH) or a downlink control information (DCI) message transmitted on the downlink control channel, the size of the transport block being pre-determined according to a wireless communications standard, wherein the information other than the control information is user-specific data information, and wherein the method further comprises: scrambling a Cyclic Redundancy Check (CRC) code using a dedicated user-specific Radio Network Temporary Identifier (RNTI): encoding, using a superposition coding, the user-specific data information into a first data layer detectable within a coverage area and a second data layer comprising additional data; and sending the scrambled CRC code with the user-specific data information in the data information message. ### Claim 2 (depends on 1) The method of claim 1, further comprising transmitting control information on other time-frequency radio resources associated with the downlink control channel. ### Claim 3 (depends on 1) The method of claim 1, wherein at least one time-frequency radio resource of the set of time-frequency radio resources is predefined to a receiver. ### Claim 4 (depends on 1) The method of claim 1, wherein at least one time-frequency radio resource of the set of time-frequency radio resources is not predefined to a receiver. ### Claim 5 (depends on 1) The method of claim 1 further comprising signaling, to a receiver, at least one time-frequency radio resource of the set of time-frequency radio resources. ### Claim 6 (depends on 1) The method of claim 1, wherein at least one time-frequency radio resource of the set of time-frequency radio resources is defined in a one of a user-specific search space for the downlink control channel and a common search space for the downlink control channel. ### Claim 7 (depends on 1) The method of claim 1, wherein the information other than the control information comprises one of user-specific data information and broadcast data information. ### Claim 8 (depends on 7) The method of claim 7, wherein transmitting, on the set of time-frequency radio resources, the information other than the control information comprises one of sending the user-specific data information in a transport block and sending the broadcast data information in at least a portion of a Master information Block (MIB). ### Claim 9 (depends on 1) The method of claim 1, wherein the downlink control channel is one of a Physical Downlink Control Channel (PDCCH) and an Enhanced PDCCH (EPDCCH), and wherein the set of time-frequency radio resources corresponds to Control Channel Elements (CCEs) or Enhanced CCEs (ECCEs). ### Claim 10 (depends on 1) The method of claim 1, wherein the dedicated user-specific RNTI is a cell-RNTI that is user-specific. ### Claim 11 (depends on 1) The method of claim 1, further comprising computing the CRC using a specific polynomial associated With the data information message. ### Claim 12 (depends on 1) The method of claim 1, further comprising implementing, one of a specific interleaving and a specific scrambling associated with the data information message prior to computing the CRC. ### Claim 13 (depends on 1) The method of claim 1, wherein the data information message includes at least one predefined bit that is set to a predefined value distinguishing the data information message from a control information message. ### Claim 14 (depends on 1) The method of claim 1 further comprising indicating, via higher layer signaling to a receiver, which part of the data information message the receiver should receive. ### Claim 15 (depends on 1) the method of claim 1, Wherein the information other than the control information is broadcast information, and wherein the method further comprises: scrambling a Cyclic Redundancy Check (CRC) code using a broadcast Radio Network Temporary Identifier (RNTI); and sending the scrambled CRC code with the broadcast information in the data information message. ### Claim 16 (depends on 15) The method of claim 15, wherein the broadcast RNTI is pre-defined and known to a plurality of receivers. ### Claim 17 (depends on 15) The method of claim 15, Wherein the data information message is transmitted over a plurality of subframes by a plurality of transmissions. ### Claim 18 (depends on 17) The method of claim 17 further comprising scrambling the data information message by a sequence corresponding to the subframes. ### Claim 19 (depends on 15) The method of claim 15, wherein the scrambling is in accordance with a cell-specific scrambling sequence applied to the data information message. ### Claim 20 (depends on 1) The method of claim 1 further comprising encoding the data information message by convolutional codes or by block codes. ### Claim 21 (depends on 1) The method of claim 1 further comprising modulating the data information message With a Phase Shift Keying (PSK) scheme. ### Claim 22 (depends on 1) The method of claim 1, wherein the network component is one of a base station and a relay node. ### Claim 23 A network component comprising: at least one processor; and a non-transitory computer readable storage medium storing programming for execution by the at least one processor, the programming including instructions that, when executed by the at least one processor, cause the network component to: arrange a set of time-frequency radio resources associated with a downlink control channel for transmitting information other than control information sent on the downlink control channel; and transmit, on the set of time-frequency radio resources, a data information message comprising the information other than the control information, wherein the data information message has a size that is the same as a size of at least one of-a of a transport block for a Physical Downlink Shared Channel (PDSCH) or a downlink control information (DCI) message transmitted on the downlink control channel, the size of the transport block being pre-determined according to a wireless communications standard; and wherein the information other than the control information is user-specific data information, and the programming includes further instructions to: scramble a Cyclic Redundancy Check (CRC) code using a dedicated user-specific Radio Network Temporary Identifier (RNTI); encode, using a superposition coding, the user-specific data information into a first data layer detectable within a coverage area and a second data layer comprising additional data; and send the scrambled CRC code with the user-specific data information in the data information message. ### Claim 24 (depends on 23) The network component of claim 23, wherein the network component corresponds to one of an Evolved Universal Terrestrial Radio Access (E-UTRA) communications network and a Long Term Evolution (LTE) communications network. ### Claim 25 A method, comprising: transmitting, by a network component and on one or more first time-frequency radio resources associated with a downlink control channel, a user-specific data information message comprising, non -control information; and transmitting, by the network component, control information on one or more second time-frequency radio resources that are associated with the downlink control channel and that are different from the one or more first time-frequency radio resources; wherein the user-specific data information message has a size that is the same as a size of at least one of a transport block for a Physical Downlink Shared Channel (PDSCH) or a downlink control information (DCI) message transmitted on the downlink control channel, the size of the transport block being pre-determined according to a wireless communications standard, wherein the non-control information is user-specific data information, and wherein the method further comprises: scrambling a Cyclic Redundancy Check (CRC) code using a dedicated user-specific Radio Network Temporary identifier (RNTI); encoding, using a superposition coding, the user-specific data information into a first data layer detectable within a coverage area and a second data layer comprising additional data; and sending the scrambled CRC code with the user-specific data information in the user-specific data information message. ### Claim 26 (depends on 25) The method of claim 25, further comprising determining the one or more first time-frequency radio resources prior to the transmitting the user-specific data information message. ### Claim 27 (depends on 25) The method of claim 25, wherein the method further comprises scrambling a Cyclic Redundancy Check (CRC) code using a dedicated user-specific Radio Network Temporary identifier (RNTI); and wherein the transmitting the user-specific data information message comprises sending the scrambled CRC code with user-specific data information in the user-specific data information message. ### Claim 28 A device, comprising: transmitter; at least one processor; and a non-transitory computer readable storage medium storing programming for execution by the at least one processor, the programming including instructions that, when executed by the at least one processor, cause the device to: cause the transmitter to transmit, with the transmitter and on one or more first time-frequency radio resources associated with a downlink control channel, a user-specific data information message comprising non-control information; and cause the transmitter to transmit, with the transmitter, control information on one or more second time-frequency radio resources that are associated with the downlink control channel and that are different from the one or more first time-frequency radio resources; wherein the data information message has a size that is the same as a size of at least one of a transport block for a Physical Downlink Shared Channel (PDSCH) or a downlink control information (DCI) message transmitted on the downlink control channel, the size of the transport block being pre-determined according to a wireless communications standard; wherein the non-control information is user-specific data information, and the programming includes further instructions that, when executed by the at least one processor, cause the device to: scramble a Cyclic Redundancy Check (CRC) code using a dedicated user-specific Radio Network Temporary Identifier (RNTI); encode, using a superposition coding, the user-specific data information into a first data layer detectable within a coverage area and a second data layer comprising additional data; and send the scrambled CRC code with the user-specific data information in the user-specific data information message. ### Claim 29 (depends on 28) The device of claim 28, wherein the programming further includes instructions that, when executed by the at least one processor, cause the device to determine the one or more first time-frequency radio resources prior to causing the transmitter to transmit trasnsmitting the user-specific data information message. ### Claim 30 (depends on 28) The device of claim 28, wherein the programming further includes instructions that, when executed by the at least one processor, cause the device to scramble a Cyclic Redundancy Check (CRC) code using a dedicated user-specific Radio Network Temporary Identifier (RNTI); and wherein the instructions to cause the transmitter to transmit transmitting the user-specific data information message comprises instructions to send sending the scrambled CRC code with user-specific data information in the user-specific data information message. ### Claim 31 A non-transitory computer-readable media storing computer instructions, that when executed by one or more processors of a communication device, cause the communication device to perform: arranging a set of time-frequency radio resources, associated with a downlink control channel, for transmitting information other than control information sent on the downlink control channel; and transmitting, on the set of time-frequency radio resources, a data information message comprising the information other than the control information, wherein the data information message has a size that is the same as a size of at least one of a transport block for a Physical Downlink Shared Channel (PDSCH) or a downlink control information (DCI) message transmitted on the downlink control channel, the size of the transport block being predetermined according to a wireless communications standard, wherein the information other than the control information comprises user-specific data information, and wherein the computer instructions, when executed by the one or more processors, cause the communication device to further perform: scrambling a Cyclic Redundancy Check (CRC) code using a dedicated user-specific Radio Network Temporary Identifier (RNTI); encoding, using a superposition coding, the user-specific data information into a first data layer detectable within a coverage area and a second data layer comprising additional data; and sending the scrambled CRC code with the user-specific data information in the data information message.