IP Library › Granted Patent US 12,542,593
Granted Patent B2
US 12,542,593 · App. 18/631,440 · Granted Feb 3, 2026

Apparatus and method for diversity transmission in a wireless communications system

Inventors: Lei Huang (Singapore, SG); Yoshio Urabe (Nara, JP); Rojan Chitrakar (Singapore, SG)
Assignee: Panasonic Intellectual Property Corporation of America
H04B7/068H04B7/0413H04B7/0689H04J11/0066H04L1/00H04L1/0003H04L1/0606H04L5/0025H04L27/26H04L27/2634H04L5/0048H04L27/2613
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Quick Facts
Patent No.
US 12,542,593
App. No.
18/631,440
Granted
Feb 3, 2026
Kind
B2
Abstract

A communication apparatus of the present disclosure includes a receiver which, in operation, receives a signal that includes a non-legacy preamble and a data field, the non-legacy preamble comprising a first field for indicating a number of spatial streams (Nss) in the data field and a second field for indicating one of a plurality of modulation and coding schemes (MCSs), wherein two or more frequency diversity transmission schemes are supported and one of the two or more frequency diversity transmission schemes is applied based on a value of the Nss; and circuitry which, in operation, decodes the signal.

Claims (38)

1 . An integrated circuit for a communication apparatus, the integrated circuit comprising,

at least one input, which, in operation, inputs an electronic signal, and

control circuitry, which, in operation, controls:

receiving a transmission signal wherein at least a part of the transmission signal is transmitted using one or more spatial streams; and

decoding the transmission signal,

wherein reception of transmission signals transmitted by two or more frequency diversity transmission schemes is supported, and

one of the two or more frequency diversity transmission schemes is applied to the transmission signal based on a number of the spatial streams.

2 . The integrated circuit according to claim 1 ,

wherein the one of the two or more frequency diversity transmission schemes is applied to the transmission signal when the number of the spatial streams is set to a first determined value.

3 . The integrated circuit according to claim 2 ,

wherein another of the two or more frequency diversity transmission schemes is applied to the transmission signal when the number of the spatial streams is set to a second determined value.

4 . The integrated circuit according to claim 3 ,

wherein the another of the two or more frequency diversity transmission schemes is not applied to the transmission signal when the number of the spatial streams is set to the first determined value.

5 . The integrated circuit according to claim 1 ,

wherein the one of the two or more frequency diversity transmission schemes is dual carrier modulation (DCM).

6 . The integrated circuit according to claim 1 ,

wherein the number of the spatial streams is indicated by the transmission signal.

7 . The integrated circuit according to claim 6 ,

wherein the one the two or more frequency diversity transmission schemes applied to the transmission signal based on the number of the spatial streams is indicated by the transmission signal.

8 . An integrated circuit for a communication apparatus, the integrated circuit comprising,

at least one output, which, in operation, outputs an electronic signal, and

control circuitry, which, in operation, controls:

generating a transmission signal wherein at least a part of the transmission signal is transmitted using one or more spatial streams; and

transmitting the transmission signal,

wherein transmission of transmission signals transmitted by two or more frequency diversity transmission schemes is supported, and

one of the two or more frequency diversity transmission schemes is applied to the transmission signal based on a number of the spatial streams.

9 . The integrated circuit according to claim 8 ,

wherein the one of the two or more frequency diversity transmission schemes is applied to the transmission signal when the number of the spatial streams is set to a first determined value.

10 . The integrated circuit according to claim 9 ,

wherein another of the two or more frequency diversity transmission schemes is applied to the transmission signal when the number of the spatial streams is set to a second determined value.

11 . The integrated circuit according to claim 10 ,

wherein the another of the two or more frequency diversity transmission schemes is not applied to the transmission signal when the number of the spatial streams is set to the first determined value.

12 . The integrated circuit according to claim 8 ,

wherein the one of the two or more frequency diversity transmission schemes is dual carrier modulation (DCM).

13 . The integrated circuit according to claim 8 ,

wherein the number of the spatial streams is indicated by the transmission signal.

14 . The integrated circuit according to claim 13 ,

wherein the one the two or more frequency diversity transmission schemes applied to the transmission signal based on the number of the spatial streams is indicated by the transmission signal.

Priority Claims (1)
JP 2016-147344 · Jul 27, 2016 · national
Continuity (7)
Continuation 18160895 · Jan 27, 2023
Continuation 17342277 · Jun 8, 2021
Continuation 16715869 · Dec 16, 2019
Continuation 16151049 · Oct 3, 2018
Continuation PCTJP2017009908 · Mar 13, 2017
Provisional Application 62335277 · May 12, 2016
Related Publication 20240259073A1 · Aug 1, 2024
References Cited (29)
US 9692559B1 · Zhang et al. · 2017 [cited by applicant]
US 9900067B2 · Oh et al. · 2018 [cited by applicant]
US 10211948B2 · Liu et al. · 2019 [cited by applicant]
US 20080310526A1 · Maltsev et al. · 2008 [cited by applicant]
US 20120140845A1 · Kwak et al. · 2012 [cited by applicant]
US 20130272147A1 · Vermani et al. · 2013 [cited by applicant]
US 20140286238A1 · Erceg et al. · 2014 [cited by applicant]
US 20150023449A1 · Porat et al. · 2015 [cited by applicant]
US 20160044635A1 · Seok · 2016 [cited by applicant]
US 20160056930A1 · Seok · 2016 [cited by applicant]
US 20160255610A1 · Li et al. · 2016 [cited by applicant]
US 20160352552A1 · Liu et al. · 2016 [cited by applicant]
US 20170126447A1 · Yang et al. · 2017 [cited by applicant]
US 20170181130A1 · Bharadwaj et al. · 2017 [cited by applicant]
US 20170187486A1 · Lee et al. · 2017 [cited by applicant]
US 20170207838A1 · Lomayev · 2017 [cited by examiner]
US 20170222769A1 · Li et al. · 2017 [cited by applicant]
US 20170264351A1 · Lomayev et al. · 2017 [cited by applicant]
Liu et al., “Reliable Dual Sub-Carrier Modulations (DCM) for HE-SIG-B and Data,” IEEE 802.11-15/1068r0, Mediatek USA, Sep. 12, 2015. (24 pages). [cited by applicant]
Stacey et al., “Proposed TGax draft specification,” IEEE 802.11-16/0024r0, Intel, Jan. 15, 2016. (147 pages). [cited by applicant]
Stacey et al., “Specification Framework for TGax,” IEEE 802.11-15/0132r15, Intel, Mar. 17, 2016. (48 pages). [cited by applicant]
Bo Sun, Nov. 2015 Bangkok PHY Ad Hoc Meeting Minutes, IEEE802.11-15/0090r1r0, IEEE, internet<URL:https://mentor.ieee.org/802.11/dcn/15/11-15-1442-00-00ax-nov-2015-phy-ad-hoc-meeting-minutes.docx >. [cited by applicant]
Extended European Search Report, dated Apr. 1, 2019, for European Application No. 17795816.2-1220, 8 pages. [cited by applicant]
IEEE Computer Society, “Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications,” Amendment 3: Enhancements for Very High Throughput in the 60GHz Band, IEEE Standard for Information tec… [cited by applicant]
International Search Report, dated Jun. 6, 2017, for International Application No. PCT/JP2017/009908, 2 pages. [cited by applicant]
Liu et al., “On QPSK DCM Modulation and LDPC Tone Mapper for DCM,” IEEE 802.11-16/0056r0, Jan. 17, 2016, 20 pages. [cited by applicant]
Liu et al., “Reliable Dual Sub-Carrier Modulations (DCM) for HE-SIG-B and Data,” IEEE 802.11-15/1068rl, Sep. 12, 2015, 25 pages. [cited by applicant]
Lu et al., “A Novel SFBC-OFDM Scheme for Doubly Selective Channels,” [cited by applicant]
Stacey et al., “Proposed TGax draft specification,” IEEE P802.11 Wireless LANs, Mar. 2, 2016, 159 pages. [cited by applicant]