DETAILED ACTION
Notice of Pre-AIA or AIA Status
The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA .
Information Disclosure Statement (IDS)
The information disclosure statement (IDS) submitted on 18 August 2025 is being considered by the examiner.
Figure 2 of the application illustrates the claimed invention.
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Claims 1-20 are pending.
Claim Rejections - 35 USC § 103
The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action:
A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made.
Claim(s) 1-6, 9-11, 13-14 and 17-20 are rejected under 35 U.S.C. 103 as being unpatentable over (WO 2021/047973 A1).
Regarding claims 1, 9 and 17, (WO 2021/047973 A1) discloses a method for determining a waveform in a bandwidth part (BWP), comprising:
determining, by a terminal based on indication information in downlink control information (DCI) and a default waveform, a target waveform used for transmission in a target BWP after BWP switching (“After configuring the UE, the base station receives information from the UE indicative of channel conditions between the UE and the base station. The base station evaluates, based on the information from the UE, whether to switch between the DFT-S-OFDM waveform and the CP-OFDM waveform for UL transmissions. IF it is determined that a change in waveform is needed, the base station sends to the UE, responsive to the evaluation, DCI over the DL control channel. The DCI includes an indication of the BWP associated with a target waveform selected from among the DFT-S-OFDM waveform and the CP-OFDM waveform”, page 3);
wherein the DCI is used to instruct the terminal to perform BWP switching, the DCI is a DCI used for scheduling in a source BWP,
(WO 2021/047973 A1), page 17, lines 8-21 “Figure 10 illustrates an exemplary method 300 implemented by a UE 50 capable of multi-layer transmission in a wireless communication network of switching waveforms for UL transmissions to a base station 20. The UE 50 configures a first bandwidth part (BWP) and a second BWP on UL resources used for UL transmissions from the UE 50 to a base station 20 (block 310). The UE 50 configures the first BWP for a DFT-S-OFDM waveform on a single transmission layer for UL transmissions and configures the second BWP for a CP-OFDM waveform on a single transmission layer or multiple transmission layers for UL transmissions (blocks 320, 330).[...] The UE 50 thereafter receives, from the base station 20, DCI over the DL control channel (block 350). The DCI includes an indication of the BWP associated with a target waveform selected from among the DFT-S-OFDM waveform and the CP-OFDM waveform based on the information. Responsive to the BWP indication, the UE 50 switches from a current BWP to the target BWP (block 360)”.
The DCI can only be received in the source BWP, before switching. The initial waveform configurations amount to default waveform – see also page 12, lines 20-23 “BWP#0 is configured for the waveform that serves as a default and BWP#1 is configured for the other waveform. In one embodiment, CP-OFDM is used as a default waveform because DFT-S-OFDM is a UE capability and some UEs may not support DFT-S-OFDM”.
Claim 1 differs from (WO 2021/047973 A1) in that the default waveform is a waveform corresponding to a code point 0.
There is no technical effect associated with the above seemingly random choice. A code point 0 is understood as the bit value of 0. Even if this code point value is not linked to any parameter of claim 1 (such as the DCI), it is noted that the mere choice of bit values indicating a default waveform (which may anyway be over-ridden by the waveform indicated by the DCI) cannot be seen as involving an inventive step. For example, the waveform whose index value is 0 is set as default waveform. The waveform corresponding to the first codepoint (codepoint) in DCI being 0 is default waveform.
Therefore, it would have been obvious to those having ordinary skilled in the art before the effective filing date of the claimed invention to configure in (WO 2021/047973 A1) a particular bit value (code point), such as 0 for indicate a default waveform and such as 1 for indicate a target waveform.
Regarding claims 2, 10 and 18, (WO 2021/047973 A1) teaches wherein the target waveform comprises at least one of the following:
a cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) waveform;
a discrete Fourier transform-spread-orthogonal frequency division multiplexing (DFT-S-OFDM) waveform;
a CP-OFDM waveform is frequency domain spectrum shaping without spectrum extension;
a DFT-S-OFDM waveform in frequency domain spectrum shaping without spectrum extension;
a CP-OFDM waveform in frequency domain spectrum shaping with spectrum extension; or
a DFT-S-OFDM waveform in frequency domain spectrum shaping with spectrum extension. (WO 2021/047973 A1), page 17, lines 8-21, “The DCI includes an indication of the BWP associated with a target waveform selected from among the DFT-S-OFDM waveform and the CP-OFDM waveform.”)
Regarding claims 3, 11 and 19, (WO 2021/047973 A1), page 12, lines 14-17, teaches wherein only one waveform for transmission is configured in the source BWP, and a plurality of waveform are configured in target BWP to support waveform switching. (only one DFT-S-OFDM waveform, whereas for CP-OFDM there are 4 possibilities (depending on the number of layers).
Regarding claims 4, 12 and 20, (WO 2021/047973 A1) teaches performing, by the terminal, transmission in the target BWP by using the target waveform in a first time period.
(“Figure 6 illustrates the high-level configuration of the BWPs. BWP#0 is configured for the waveform that serves as a default and BWP#1 is configured for the other waveform.
(“After configuring the UE, the base station receives information from the UE indicative of channel condition between the UE and the base station. The base station evaluates, based on the information from the UE, whether to switch between the DFT-S-OFDM waveform and the CP-OFDM waveform for UL transmissions. If it is determined that a change in waveform is needed, the base station sends to the UE, responsive to the evaluation, DCI over the DL control channel. The DCI includes an indication of the BWP associated with a target waveform selected from among the DFT-S-OFDM waveform and the CP-OFDM waveform.”
Therefore, it would have been obvious to those having ordinary skilled in the art before the effective filing date of the claimed invention to configure the terminal to switch to the target BWP using the target waveform in a time instance, such as first time instance, if it is determined that a change in waveform is needed.
Regarding claims 5 and 13, (WO 2021/047973 A1) teaches wherein duration of the first time period is related to capability of the terminal, (page 12, lines 20-26) “In the embodiment, CP-OFDM is used as a default waveform because DFT-S-OFDM is a UE capability and some UEs may not support DFT-S-OFDM. In this case, BWP#0 is configured for CP-OFDM using a single transmission layer or multiple transmission layers and BWP#1 is configured for DFT-S-OFDM using a transmission layer. In other embodiments, DFT-S-OFDM is used as a default waveform.”)
Regarding claims 6 and 14, (WO 2021/047973 A1) teaches receiving, by the terminal, the DCI, wherein the DCI is used to instruct the terminal to perform BWP switching, and the DCI does not comprise a waveform switching indication, and performing, by the terminal, transmission in the target BWP by using the default waveform. (page 12, lines 3-5, “Switching between BWPs can be accomplished by sending a BWP identification (ID) in DCI from the base station 20 to the UE 50 as shown in Figure 5. BWP switching can also be RRC-based or timer-based.”).
Claim(s) 7 and 15 are rejected under 35 U.S.C. 103 as being unpatentable over (WO 2021/047973 A1) in view of Wang et al. (US 2018/0035423 A1).
Regarding claims 7 and 15, (WO 2021/047973 A1) fails to explicitly teach wherein the target waveform comprises a waveform for physical uplink shared channel (PUSCH) transmission or a waveform for physical downlink shared channel (PDSCH) transmission.
([0066]: “FIG. 2 illustrates an example of a wireless communications system 200 for UL channel dynamic waveform switching in accordance with one or more aspects of the present disclosure. Wireless communications system 200 may include UE 115-a and base station 105-a, which may be examples of a UE 115 and a base station 105 of FIG. 1. UE 115-a may switch waveforms of an uplink channel (e.g., PUSCH) while communicating with base station 105-a. For example, UE 115-a may switch from using an SC-FDM waveform to an OFDM waveform or form an OFDM waveform to an SC-FDM waveform.”) See also figure 8.
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Therefore, it would have been obvious to those having ordinary skilled in the art before the effective filing date of the claimed invention to combine Wang et al. with 9(WO 2021/047973 A1) to implement a waveform for physical uplink shared channel (PUSCH) transmission.
Claim(s) 8 and 16 are rejected under 35 U.S.C. 103 as being unpatentable over (WO 2021/047973 A1) in view of Wang et al. (US 2018/0035423 A1) further in view of Bhamri et al. (US 2023/0283436 A1).
Regarding claims 8 and 16, (WO 2021/047973 A1) in view of Wang et al. fails to teaches wherein the PUSCH transmission or the PDSCH transmission comprises at least one of the following:
transmission in at least one serving cell; or transmission on at least one of a plurality of configured transmission and reception point (TRPs).
Bhamri et al. in the same field of invention, teaches this feature.
([0119]: “Switching of waveform types based on BWP switching is provided where different BWPs are configured with different subcarrier spacing”)
([0149]: “the multiple transmission occasions are for different TRPs, where transmission occasions belonging to different TRPs are associated with different waveform types.” It would have been obvious to those having ordinary skilled in the art before the effective filing date of the claimed invention to configure different waveform for different TRPs in (WO 2021/047973 A1).
The prior art made of record and not relied upon is considered pertinent to applicant disclosure:
Sakhnini et al. (US 2022/0303981 A1) teaches (“switching waveforms in a waveform switching gap. In an aspect, using a transceiver, a first signal of a first waveform can be communicated in a first time period. In a waveform switching gap, the transceiver can be switched to use a second waveform. Using the transceiver, a second signal of a second waveform can be communicated in a second time period. The waveform switching gap may occur between the first time period and the second time period.” See abstract.)
Akkarakaran et al. (US 2018/0294916 A1) discloses system and methods providing for dynamic switching between the various waveforms on the downlink.
(WO 2021/084333 A1) discloses apparatus and methods for transmission using an adapted downlink waveform type.
(WO 2021/260659 A1) discloses methods for control signal configuration waveform type.
Sakhnini et al. (US 2022/0330252 A1) discloses method, system and devices for wireless communications for waveform-specific transmission parts.
ISLAM et al. (US 2023/0054786 A1) disclose selection of different initial bandwidth parts for reduced capability user equipment (UE).
Conclusion
Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRENDA H PHAM whose telephone number is (571)272-3135. The examiner can normally be reached 571-272-3135.
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If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Charles Jiang can be reached at 571-270-7191. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300.
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BRENDA H. PHAM
Primary Examiner
Art Unit 2412
/BRENDA H PHAM/Primary Examiner, Art Unit 2412
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