# US 2018/0323804 A1 · Pbch signal design and efficient continuous monitoring and polar decoding > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0323804 A1 - Document ID: US20180323804A1 - Status: Published application - Kind: A1 - Application number: 15/971,967 - Filed: 2018-05-04 - Published: 2018-11-08 - Earliest claimed: 2017-05-08 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Bilal Sadiq; Jamie Menjay Lin; Yang Yang; Gabi Sarkis; Tao Luo - Web page: https://patentgrep.com/patent/US20180323804A1 ## CPC - H03M 13/13: Linear codes - H03M 13/356: {Unequal error protection [UEP]} - H03M 13/3715: {Adaptation to the number of estimated errors or to the channel state} - H03M 13/3723: {using means or methods for the initialisation of the decoder} - H03M 13/612: {Aspects specific to channel or signal-to-noise ratio estimation (H03M13/63 takes precedence)} - H04L 1/0041: {Arrangements at the transmitter end} - H04L 1/0053: {specially adapted for power saving} - H04L 1/0057: {Block codes (H04L1/0061, H04L1/0064 take precedence)} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H03M 13/1102: {Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes} - H03M 13/23: using convolutional codes, e.g. unit memory codes - H03M 13/2957: {Turbo codes and decoding} - H04L 1/0042: {Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape (H04L1/0067 takes precedence)} - H04W 72/0446: Resources in time domain, e.g. slots or frames - Y02D 30/70: in wireless communication networks - H03M: CODING; DECODING; CODE CONVERSION IN GENERAL (using fluidic means F15C4/00; optical analogue/digital converters G02F7/00; coding, decoding or code conversion, specially adapted for particular applications, see the relevant subclasses, e.g. G01D, G01R, G06F, G06T, G09G, G10L, G11B, G11C, H04B, H04L, H04M, H04N; ciphering or deciphering for cryptography or other purposes involving the need for secrecy G09C) - 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) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract Wireless communications systems and methods are introduced. A wireless communication device may arrange a first encoded information block including a first sub-block having a first bit location and a second sub-block having a second bit location. The second bit location is after the first bit location. The wireless communication device may also position the first location earlier in a decoding order of a receiving second wireless communication than the second bit location. The wireless communication device may transmit the first and second sub-blocks as an encoded information block to the second wireless communication device. ## Claims ### Claim 1 A method of wireless communication, comprising: arranging, by a first wireless communication device, first information into a first sub-block having a first bit location and second information into a second sub-block having a second bit location after the first bit location; positioning, by the first wireless communication device, the first bit location earlier in a decoding order of a receiving second wireless communication device than the second bit location; and transmitting, by the first wireless communication device, the first sub-block and the second sub-block as an encoded information block to the second wireless communication device. ### Claim 2 (depends on 1) The method of claim 1, wherein the first information comprises system frame information. ### Claim 3 (depends on 1) The method of claim 1, wherein the second information comprises scheduling information. ### Claim 4 (depends on 1) The method of claim 1, wherein the positioning comprises: selecting the first bit location based on a first estimated reliability for the first bit location; and selecting the second bit location based on a second estimated reliability for the second bit location, wherein the first estimated reliability is less than the second estimated reliability. ### Claim 5 (depends on 1) The method of claim 1, further comprising: polar encoding, by the first wireless communication device prior to the transmitting, an information block comprising the first and second information to generate the encoded information block including the first sub-block and the second sub-block. ### Claim 6 (depends on 5) The method of claim 5, further comprising: arranging, by the first wireless communication device, third information into a third sub-block and fourth information into a fourth sub-block, the third sub-block being associated with the first sub-block and the fourth sub-block being associated with the second sub-block; polar encoding, by the first wireless communication device, a second information block comprising the third and fourth information to generate a second encoded information block including the third sub-block and the fourth sub-block; and transmitting, by the first wireless communication device, the second encoded information block after the encoded information block to the second wireless communication device. ### Claim 7 (depends on 6) The method of claim 6, wherein: the first sub-block comprises a first plurality of information, the second sub-block comprises a second plurality of information, the third sub-block comprises a third plurality of information, and the fourth sub-block comprises a fourth plurality of information; the polar encoding of the first information block comprises combining the first information with first elements from the first and second pluralities of information, and the second information with second elements from the second plurality of information; and the polar encoding of the second information block comprises combining the third information with third elements from the third and fourth pluralities of information, and the fourth information with fourth elements from the fourth plurality of information. ### Claim 8 (depends on 7) The method of claim 7, wherein the polar encoding of the first and second information blocks comprises a natural order encoding. ### Claim 9 (depends on 6) The method of claim 6, wherein: the arranging the first and second sub-blocks comprises positioning the second sub-block subsequent to the first sub-block in the first encoded information block; and the arranging the third and fourth sub-blocks comprises positioning the fourth sub-block subsequent to the third sub-block in the second encoded information block. ### Claim 10 A method of wireless communication, comprising: receiving, by a first wireless communication device, an encoded information block from a second wireless communication device, the encoded information block comprising a first sub-block having a first bit location and a second sub-block having a second bit location after the first bit location; decoding, by the first wireless communication device, the first sub-block; and decoding, by the first wireless communication device, the second sub-block after the first sub-block. ### Claim 11 (depends on 10) The method of claim 10, wherein the first sub-block comprises system frame number information. ### Claim 12 (depends on 10) The method of claim 10, wherein the second sub-block comprises scheduling information. ### Claim 13 (depends on 10) The method of claim 10, further comprising: receiving, by the first wireless communication device, a second encoded information block from the second wireless communication device, the second encoded information block comprising a third sub-block and a fourth sub-block, the third sub-block being associated with the first sub-block, and the fourth sub-block being associated with the second sub-block; determining, by the first wireless communication device, a correlation value between the second sub-block and the fourth sub-block; and adopting, by the first wireless communication device, the information included in the second sub-block as information included in the fourth sub-block in place of decoding the second encoded information block, in response to determining that the correlation value is less than a threshold. ### Claim 14 (depends on 13) The method of claim 13, further comprising: decoding, by the first wireless communication device, the fourth sub-block of the second encoded information block in response to determining that the correlation value is greater than the threshold. ### Claim 15 (depends on 13) The method of claim 13, further comprising: determining, by the first wireless communication device, a first plurality of log-likelihood ratios (LLRs) from the first encoded information block as a first estimate for the second sub-block; and determining, by the first wireless communication device, a second plurality of LLRs from the second encoded information block as a second estimate for the fourth sub-block. ### Claim 16 (depends on 15) The method of claim 15, wherein: selecting a subset of the first plurality of LLRs for the first estimate, wherein the selecting the subset of the first plurality of LLRs is based on a first bit-reversal placement, and selecting a subset of the second plurality of LLRs for the second estimate, wherein the selecting the subset of the second plurality of LLRs is based on a second bit-reversal placement. ### Claim 17 (depends on 15) The method of claim 15, wherein: the determining the correlation value comprises comparing, by the first wireless communication device, the first and second estimates to each other to determine the correlation value; and normalizing, by the first wireless communication device, the correlation value to generate a normalized correlation coefficient, the normalized correlation coefficient being compared against the threshold. ### Claim 18 An apparatus, comprising: a processor configured to: arrange first information into a first sub-block having a first bit location and second information into a second sub-block having a second bit location after the first bit location; and position the first bit location earlier in a decoding order of a wireless communication device than the second bit location; and a transceiver configured to: transmit the first sub-block and the second sub-block as an encoded information block to the wireless communication device. ### Claim 19 (depends on 18) The apparatus of claim 18, wherein the first information comprises system frame information. ### Claim 20 (depends on 18) The apparatus of claim 18, wherein the second information comprises scheduling information. ### Claim 21 (depends on 18) The apparatus of claim 18, wherein the processor is further configured to: polar encode an information block comprising the first and second information to generate the encoded information block including the first sub-block and the second sub-block. ### Claim 22 (depends on 21) The apparatus of claim 21, wherein the processor is further configured to: arrange third information into a third sub-block and fourth information into a fourth sub-block, the third sub-block being associated with the first sub-block and the fourth sub-block being associated with the second sub-block; and polar encode a second information block comprising the third and fourth information to generate a second encoded information block including the third sub-block and the fourth sub-block, wherein the transceiver is further configured to transmit the second encoded information block after the encoded information block to the wireless communication device. ### Claim 23 (depends on 22) The apparatus of claim 22, wherein: the first sub-block comprises a first plurality of information, the second sub-block comprises a second plurality of information, the third sub-block comprises a third plurality of information, and the fourth sub-block comprises a fourth plurality of information; the processor is further configured, as part of the polar encoding the first information block, combine the first information with first elements from the first and second pluralities of information, and the second information with second elements from the second plurality of information; and the processor is further configured, as part of the polar encoding the second information block, combine the third information with third elements from the third and fourth pluralities of information, and the fourth information with fourth elements from the fourth plurality of information. ### Claim 24 (depends on 23) The apparatus of claim 23, wherein the polar encoding of the first and second information blocks comprises a natural order encoding. ### Claim 25 (depends on 23) The apparatus of claim 23, wherein the polar encoding of the first and second information blocks comprises a reverse order encoding. ### Claim 26 (depends on 22) The apparatus of claim 22, wherein the processor is further configured to: position the second sub-block subsequent to the first sub-block in the first encoded information block; and position the fourth sub-block subsequent to the third sub-block in the second encoded information block. ### Claim 27 An apparatus, comprising: a transceiver configured to receive, by the apparatus, an encoded information block from a wireless communication device, the encoded information block comprising a first sub-block having a first bit location and a second sub-block having a second bit location after the first bit location; and a processor configured to decode the first sub-block and decode the second sub-block after the first sub-block. ### Claim 28 (depends on 27) The apparatus of claim 27, wherein the first sub-block comprises system frame number information. ### Claim 29 (depends on 27) The apparatus of claim 27, wherein the second sub-block comprises scheduling information. ### Claim 30 (depends on 27) The apparatus of claim 27, wherein: the transceiver is further configured to receive a second encoded information block from the wireless communication device, the second encoded information block comprising a third sub-block and a fourth sub-block, the third sub-block being associated with the first sub-block, and the fourth sub-block being associated with the second sub-block; and the processor is further configured to determine a correlation value between the second sub-block and the fourth sub-block and adopt the information included in the second sub-block as information included in the fourth sub-block in place of decoding the second encoded information block in response to determining that the correlation value is less than a threshold. ### Claim 31 (depends on 30) The apparatus of claim 30, wherein the processor is further configured to: decode the fourth sub-block of the second encoded information block in response to the determination that the correlation value is greater than the threshold. ### Claim 32 (depends on 30) The apparatus of claim 30, wherein the processor is further configured to: determine a first plurality of log-likelihood ratios (LLRs) from the first encoded information block as a first estimate for the second sub-block; and determine a second plurality of LLRs from the second encoded information block as a second estimate for the fourth sub-block. ### Claim 33 (depends on 32) The apparatus of claim 32, wherein the processor is further configured to: select a subset of the first plurality of LLRs for the first estimate, wherein the selection of the subset of the first plurality of LLRs is based on a first bit-reversal placement; and select a subset of the second plurality of LLRs for the second estimate, wherein the selection of the subset of the second plurality of LLRs is based on a second bit-reversal placement. ### Claim 34 (depends on 32) The apparatus of claim 32, wherein processor is further configured to: compare, as part of the determination of the correlation value, the first and second estimates to each other to determine the correlation value; and normalize the correlation value to generate a normalized correlation coefficient, the normalized correlation coefficient being compared against the threshold. ### Claim 35 (depends on 27) The apparatus of claim 27, wherein the apparatus comprises a user equipment and the wireless communication device comprises an evolved node B.