# US 11,310,788 B2 · Signaling radio transmission mapping types > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,310,788 B2 - Document ID: US11310788B2 - Status: Granted - Kind: B2 - Application number: 16/894,151 - Filed: 2020-06-05 - Published: 2020-10-29 - Granted: 2022-04-19 - Earliest claimed: 2017-11-24 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget LM Ericsson (publ) - Inventors: Stefan Parkvall; Robert Baldemair - Web page: https://patentgrep.com/patent/US11310788B2 ## CPC - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04W 72/044: based on the type of the allocated resource - 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 According to some embodiments, a wireless device is configured to receive resource allocation information from a network node. The wireless device comprises a radio interface and processing circuitry configured to receive radio resource allocation information for a wireless transmission. The radio resource allocation information comprises one or more time-domain resources for the wireless transmission and a mapping type for the wireless transmission. The mapping type refers to a reference signal placement within the wireless transmission (e.g., demodulation reference signal (DMRS) mapping Type A or Type B). The radio interface and processing circuitry are further configured to interpret the received radio resource allocation information to determine a mapping type for the wireless transmission. ## Claims ### Claim 1 A network node configured to signal resource allocation information to a wireless device, the network node comprising a radio interface and processing circuitry configured to: assemble radio resource allocation information for a wireless transmission, the radio resource allocation information indicating one or more time-domain resources for the wireless transmission and a mapping type for the wireless transmission, wherein the mapping type refers to a reference signal placement within the wireless transmission; and transmit, to a wireless device, an index indicating the radio resource allocation information for the wireless transmission, wherein the index identifies the radio resource allocation information of a predefined set of radio resource allocation information. ### Claim 2 (depends on 1) The network node of claim 1, wherein the mapping type comprises one of mapping type A or mapping type B, wherein mapping type A refers to a demodulation reference signal (DMRS) placed relative to the beginning of a slot, and mapping type B refers to a DMRS placed at the beginning of transmitted data within a slot. ### Claim 3 (depends on 1) The network node of claim 1, wherein the mapping type is associated with a physical downlink shared channel (PDSCH). ### Claim 4 (depends on 1) The network node of claim 1, wherein the mapping type is associated with a physical uplink shared channel (PUSCH). ### Claim 5 (depends on 1) The network node of claim 1, wherein the one or more time-domain resources for the wireless transmission comprise at least one of a starting orthogonal frequency division multiplexing (OFDM) symbol for the wireless transmission and a duration of the wireless transmission. ### Claim 6 (depends on 5) The network node of claim 5, wherein the duration of the wireless transmission is specified by one of a number of OFDM symbols for the wireless transmission or an ending OFDM symbol. ### Claim 7 (depends on 1) The network node of claim 1, wherein the mapping type is implicitly determined based on the one or more time-domain resources for the wireless transmission. ### Claim 8 (depends on 1) The network node of claim 1, wherein the radio interface and processing circuitry are configured to transmit the index to the wireless device via downlink control information (DCI). ### Claim 9 A method performed by a network node for signaling resource allocation information to a wireless device, the method comprising: assembling radio resource allocation information for a wireless transmission, the radio resource allocation information indicating one or more time-domain resources for the wireless transmission and a mapping type for the wireless transmission, wherein the mapping type refers to a reference signal placement within the wireless transmission; and transmitting, to a wireless device, an index indicating the radio resource allocation information for the wireless transmission, wherein the index identifies the radio resource allocation information of a predefined set of radio resource allocation information. ### Claim 10 (depends on 9) The method of claim 9, wherein the mapping type comprises one of mapping type A or mapping type B, wherein mapping type A refers to a demodulation reference signal (DMRS) placed relative to the beginning of a slot, and mapping type B refers to a DMRS placed at the beginning of transmitted data within a slot. ### Claim 11 (depends on 9) The method of claim 9, wherein the mapping type is associated with a physical downlink shared channel (PDSCH). ### Claim 12 (depends on 9) The method of claim 9, wherein the mapping type is associated with a physical uplink shared channel (PUSCH). ### Claim 13 (depends on 9) The method of claim 9, wherein the one or more time-domain resources for the wireless transmission comprise at least one of a starting orthogonal frequency division multiplexing (OFDM) symbol for the wireless transmission and a duration of the wireless transmission. ### Claim 14 (depends on 13) The method of claim 13, wherein the duration of the wireless transmission is specified by one of a number of OFDM symbols for the wireless transmission or an ending OFDM symbol. ### Claim 15 (depends on 9) The method of claim 9, wherein the mapping type is implicitly determined based on the one or more time-domain resources for the wireless transmission. ### Claim 16 (depends on 9) The method of claim 9, wherein the index is transmitted to the wireless device via downlink control information (DCI). ### Claim 17 A wireless device configured to receive resource allocation information from a network node, the wireless device comprising a radio interface and processing circuitry configured to: receive an index indicating radio resource allocation information for a wireless transmission, the radio resource allocation information indicating one or more time-domain resources for the wireless transmission and a mapping type for the wireless transmission, wherein the mapping type refers to a reference signal placement within the wireless transmission, wherein the index identifies the radio resource allocation information of a predefined set of radio resource allocation information; use the index to determine the radio resource allocation information; and interpret the radio resource allocation information to determine a mapping type for the wireless transmission. ### Claim 18 (depends on 1) The wireless device of claim 1, wherein the mapping type comprises one of mapping type A or mapping type B, wherein mapping type A refers to a demodulation reference signal (DMRS) placed relative to the beginning of a slot, and mapping type B refers to a DMRS placed at the beginning of transmitted data within a slot. ### Claim 19 (depends on 17) The wireless device of claim 17, wherein the mapping type is associated with a physical downlink shared channel (PDSCH). ### Claim 20 (depends on 17) The wireless device of claim 17, wherein the mapping type is associated with a physical uplink shared channel (PUSCH). ### Claim 21 (depends on 17) The wireless device of claim 17, wherein the one or more time-domain resources for the wireless transmission comprise at least one of a starting orthogonal frequency division multiplexing (OFDM) symbol for the wireless transmission and a duration of the wireless transmission. ### Claim 22 (depends on 21) The wireless device of claim 21, wherein the duration of the wireless transmission is specified by one of a number of OFDM symbols for the wireless transmission or an ending OFDM symbol. ### Claim 23 (depends on 17) The wireless device of claim 17, wherein the radio interface and processing circuitry are configured to determine the mapping type based on the one or more time-domain resources for the wireless transmission. ### Claim 24 (depends on 17) The wireless device of claim 17, wherein the radio interface and processing circuitry receive the index via downlink control information (DCI) from the network node. ### Claim 25 A method in a wireless device for receiving resource allocation information from a network node, the method comprising: receiving an index indicating radio resource allocation information for a wireless transmission, the radio resource allocation information indicating one or more time-domain resources for the wireless transmission and a mapping type for the wireless transmission, wherein the mapping type refers to a reference signal placement within the wireless transmission, wherein the index identifies the radio resource allocation information of a predefined set of radio resource allocation information; using the index to determine the radio resource allocation information; and interpreting the radio resource allocation information to determine a mapping type for the wireless transmission. ### Claim 26 (depends on 25) The method of claim 25, wherein the mapping type comprises one of mapping type A or mapping type B, wherein mapping type A refers to a demodulation reference signal (DMRS) placed relative to the beginning of a slot, and mapping type B refers to a DMRS placed at the beginning of transmitted data within a slot. ### Claim 27 (depends on 25) The method of claim 25, wherein the mapping type is associated with a physical downlink shared channel (PDSCH). ### Claim 28 (depends on 25) The method of claim 25, wherein the mapping type is associated with a physical uplink shared channel (PUSCH). ### Claim 29 (depends on 25) The method of claim 25, wherein the one or more time- domain resources for the wireless transmission comprise at least one of a starting orthogonal frequency division multiplexing (OFDM) symbol for the wireless transmission and a duration of the wireless transmission. ### Claim 30 (depends on 29) The method of claim 29, wherein the duration of the wireless transmission is specified by one of a number of OFDM symbols for the wireless transmission or an ending OFDM symbol.