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
The information disclosure statement filed on January 28, 2025 fails to comply with 37 CFR 1.98(a)(2), which requires a legible copy of each cited foreign patent document; each non-patent literature publication or that portion which caused it to be listed; and all other information or that portion which caused it to be listed. It has been placed in the application file, but the information referred to therein has not been considered.
Applicant must provide legible copies of non-patent literature (NPL) with the Information Disclosure Statement (IDS), not just a website link, because the examiner needs direct access to the content to evaluate its materiality, especially if it's foreign or not easily accessible; a website link might suffice only if it's easily and publicly accessible without paywalls or special logins, but submitting copies ensures compliance and avoids delays or non-consideration by the USPTO. Further, the second non-patent literature does not include the date of publication, at least the year of publication is required.
Drawings
Figure 1 (see paragraph [0034] discussed under the background of the specification) should be designated by a legend such as --Prior Art-- because only that which is old is illustrated. See MPEP § 608.02(g). Corrected drawings in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. The replacement sheet(s) should be labeled “Replacement Sheet” in the page header (as per 37 CFR 1.84(c)) so as not to obstruct any portion of the drawing figures. If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance.
Specification
The lengthy specification has not been checked to the extent necessary to determine the presence of all possible minor errors. Applicant’s cooperation is requested in correcting any errors of which applicant may become aware in the specification.
Claim Objections
Claims 1-4, 8-11, 14, 17-21, 25-28, 31, and 35 are objected to because of the following informalities:
1. (Proposed Amendment)) A method performed by a user equipment (UE) configured with 8 or more transmit antenna ports (NTX), the method comprising:
[[-]] receiving a precoding indication which indicates a precoder in a subset of precoders selected from a set of precoders, wherein the set of precoders comprises non coherent precoders, partially coherent precoders and fully coherent precoders, and wherein the subset of precoders corresponds to a plurality of precoders associated with NTX/Ng transmit antenna ports, where Ng is a number of transmit antenna port groups; and
[[-]] transmitting a data transmission using the indicated precoder to a network node.
10. (Proposed Amendment) The method of claim 1, wherein receiving the precoding indication comprises receiving a configuration of a set of indices, each index indicating an available precoder in the subset of precoders and each index being mapped to a transmit precoding matrix index (TPMI).
11. (Proposed Amendment) The method of claim 1, wherein a number of the NTX transmit antenna ports is 8 and the number of transmit antenna port groups is 4 and wherein the subset of precoders corresponds to a plurality of precoders associated with 2 transmit antenna ports, wherein there are 4 subsets of precoders associated with the 4 transmit antenna port groups, and wherein each transmit antenna port group comprises 2 transmit antenna ports and wherein each of the 4 subsets of precoders is fully coherent precoders.
14. (Proposed Amendment) The method of claim 1, wherein a number of the NTX transmit antenna ports is 8 and the number of transmit antenna port groups is 2 and wherein the subset of precoders corresponds to a plurality of precoders associated with 4 transmit antenna ports.
17. (Proposed Amendment) The method of claim 1, wherein only precoders that contain non-zero coefficients for transmit antenna ports that are mutually coherent, and coefficients of zero for the remaining transmit antenna ports, are part of the subset of precoders.
18. (Proposed Amendment) A method performed by a network node in communication with a user equipment (UE) which is configured with 8 or more transmit antenna ports (NTX), the method comprising:
[[-]] determining a subset of precoders, selected from a set of precoders, wherein the set of precoders comprises non coherent precoders, partially coherent precoders and fully coherent precoders, and wherein the subset of precoders corresponds to a plurality of precoders associated with NTX/Ng transmit antenna ports, where Ng is a number of transmit antenna port groups;
[[-]] transmitting a precoding indication which indicates a precoder from the determined subset of precoders; and
[[-]] receiving, from the UE, a data transmission using the indicated precoder.
27. (Proposed Amendment) The method of claim 18, wherein transmitting the precoding indication comprises transmitting a configuration of a set of indices, each index indicating an available precoder in the subset of precoders and each index being mapped to a transmit precoding matrix index (TPMI).
28. (Proposed Amendment) The method of claim 18, wherein a number of the NTX transmit antenna ports is 8 and the number of transmit antenna port groups is 4 and wherein the subset of precoders corresponds to a plurality of precoders associated with 2 transmit antenna ports, wherein there are 4 subsets of precoders associated with the 4 transmit antenna port groups, and wherein each transmit antenna port group comprises 2 transmit antenna ports and wherein each of the 4 subsets of precoders is fully coherent precoders.
31. (Proposed Amendment) The method of claim 18, wherein a number of the NTX transmit antenna ports is 8 and the number of transmit antenna port groups is 2 and wherein the subset of precoders corresponds to a plurality of precoders associated with 4 transmit antenna ports.
35. (Proposed Amendment) A user equipment (UE), configured with 8 or more transmit antenna ports (NTX), comprising processing circuitry and a network interface connected thereto, the processing circuitry configured to:
[[-]] receive a precoding indication which indicates a precoder in a subset of precoders selected from a set of precoders, wherein the set of precoders comprises non coherent precoders, partially coherent precoders and fully coherent precoders, and wherein the subset of precoders corresponds to a plurality of precoders associated with NTX/Ng transmit antenna ports, where Ng is a number of transmit antenna port groups; and
[[-]] transmit a data transmission using the indicated precoder to a network node.
Claims 2-4, 8, and 9 depend either directly or indirectly from claim 1, therefore they are also objected.
Claims 19-21, 25, and 26 depend either directly or indirectly from claim 18, therefore they are also objected.
Appropriate correction is required.
Claim Rejections - 35 USC § 112
The following is a quotation of the first paragraph of 35 U.S.C. 112(a):
(a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention.
The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112:
The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention.
Claims 1-4, 8-11, 14, 17-21, 25-28, 31, and 35 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention.
The preamble of each of the independent claims 1, 18, and 35 recites that “a user equipment (UE) configured with 8 or more transmit antenna ports NTX.” However, the example for the transmit antenna ports discussed in the specification and shown in the disclosure of the drawings is 8 only. The specification fails to provide supports and offers general principles and examples of larger configurations of a User Equipment (UE) with “8 or more transmit antenna ports” when the patent application only explicitly describes a UE with 8 transmit antenna ports.
Claims 2-4, 8-11, 14, and 17 depend either directly or indirectly from claim 1, therefore they are also rejected.
Claims 19-21, 25-28, and 31 depend either directly or indirectly from claim 18, therefore they are also rejected.
The following is a quotation of 35 U.S.C. 112(b):
(b) CONCLUSION. The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention.
The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph:
The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention.
Claims 3, 9, 17, 20, and 26 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention.
Claim 3 depends from claim 2, which depends from claim 1. The phrase “a precoder in a subset of precoders” is recited in line 3 of claim 1, and the same phrase “a precoder in a subset of precoders” is also recited in lines 1-2 of claim 3. Clarification is required to clarify the difference.
Claim 20 depends from claim 18. Similar to claim 3, the phrase “a precoder from the determined subset of precoders” is recited in lines 7-8 of claim 18, and the phrase “a precoder in a subset of precoders” is recited in line 2 of claim 20. Clarification is required to clarify the difference.
The phrase “the transmit antenna ports” recited in line 2 of both claims 9 and 26 lacks antecedent basis. It is under whether “the transmit antenna ports” is referenced to the “NTX transmit antenna ports” or the “NTX/Ng transmit antenna ports”.
Claim 17 depends from claim 1, and the phrases “precoders” and “transmit antenna ports” recited in line 2 of claim 17 are also unclear from the claim. In other words, it is unclear whether the “decoders” is referenced to “the set of decoders”, “the subset of decoders” or “the plurality of decoders”, and it is also under whether the “transmit antenna ports” is referenced to the “NTX transmit antenna ports” or the “NTX/Ng transmit antenna ports”.
Claim Rejections - 35 USC § 103
In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status.
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.
The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows:
1. Determining the scope and contents of the prior art.
2. Ascertaining the differences between the prior art and the claims at issue.
3. Resolving the level of ordinary skill in the pertinent art.
4. Considering objective evidence present in the application indicating obviousness or nonobviousness.
Claims1-4, 8-11, 14, 17-21, 25-28, 31, and 35 are rejected under 35 U.S.C. 103 as being unpatentable over LI et al. (US 2021/0281448 A1) cited in the IDS, hereinafter “Li” in view of PETERSSON et al. (US 2021/0359805 A1), hereinafter “Petersson”.
Li illustrates an example of a process flow 300 in Figure 3 that supports configuration of SRS resource(s) for multi-panel uplink transmission to implement aspects of the wireless communications system 100 in Figure 1 and wireless the communications system 200 in Figure 2.
The process flow 300 includes a base station 105-b and a UE 115-b, which may be examples of the base stations 105 and the UEs 115 as described with reference to Figures 1 and 2.
At 305, the UE 115-b may determine or identify a UE capability. For example, the UE 115-b may generate a UE capability report indicating a number of SRS resources capability (e.g., a number of SRS resources a UE is capable of transmitting SRS over), a number of SRS ports supported per SRS resource capability (e.g., a number of antenna ports the UE is capable of using for each SRS transmission over the one or more supported SRS resources), an antenna port coherency capability (e.g., groups or sets of antenna ports that may be coherently combined), etc.
At 310, the UE 115-b may transmit the UE capability report to the base station 105-b.
At 315, the base station 105-b may configure one or more SRS resources (e.g., based on the UE capability report received at 310). For example, the base station 105-b may configure a number of SRS resources based on the number of SRS resources capability of the UE 115-b. Further, in some cases, the base station 105-b may configure each of the one or more SRS resources with one or more antenna ports (e.g., SRS ports) based on the number of SRS ports supported per SRS resource capability of the UE 115-b. For example, the base station 105-b may configure up to some maximum number of ports the UE 115-b is capable of using per SRS resource, as indicated by the UE capability report, for each SRS resource that is ultimately configured by the base station 105-b. In some cases, the antenna ports (e.g., or SRS ports) configured for the SRS resources may be based on the coherency capability of the UE 115-b (e.g., the base station 105-b may configure antenna ports the UE 115-b has indicated as being able to be coherently combined). In some cases, the same number of ports are configured for each SRS resource.
At 320, the base station 105-b may transmit the SRS resource configuration to the UE 115-b. The SRS resource configuration transmission may indicate the SRS resource configuration determined at 315.
At 325, the UE 115-b may transmit one or more SRSs based at least in part on the SRS resource configuration received at 320. For example, the UE 115-b may transmit an SRS on each SRS resource indicated by the SRS resource configuration, and each SRS may be transmitted with one or more SRS ports that may also be indicated by the SRS resource configuration. In some cases, the UE 115-b may identify a co-phase adjustment for each of the one or more SRS resources, and may transmit the one or more SRSs (e.g., SRS over each configured SRS resource) based at least in part on the identified co-phase adjustments. For example, the UE 115-b may adjust the co-phase from one SRS transmission to the next, such that each SRS transmission, and thus each SRS resource, may be associated with a different co-phase adjustment. In some cases, the UE 115-b may identify a precoder adjustment for each of the one or more SRS resources, and may transmit the one or more SRSs (e.g., SRS over each configured SRS resource) based at least in part on the identified precoder adjustments. For example, the UE 115-b may adjust the precoder from one SRS transmission to the next, such that each SRS transmission, and thus each SRS resource, may be associated with a different precoder adjustment.
At 330, the base station 105-b may determine co-phase information (e.g., a co-phase adjustment) and uplink precoding information (e.g., a precoder adjustment) based on the one or more SRSs received at 325. In some cases (e.g., when the UE 115-b adjusts the co-phase for each SRS transmission), the base station 105-b may determine the co-phase for each of the SRS resources based on the one or more received SRSs (e.g., the SRS received on each SRS resource). Further, the base station 105-b may select an SRS resource based on the co-phase associated with the selected SRS resource (e.g., based on the preferred co-phase adjustment, selected based on the preferred or selected SRS transmission). The base station 105-b may generate or determine an SRI corresponding to the selected SRS resource (e.g., and thus the selected co-phase adjustment), such that the SRI may indicate co-phase information.
At 335, the base station 105-b may transmit a co-phase information indication and an uplink precoding information indication to UE 115-b. As discussed herein, in some cases base station 105-b may transmit an SRI that includes or refers to the co-phase information indication, and the uplink precoding information may be transmitted in the form of some explicit indication, such as an index (e.g., TPMI) indicating the precoding information (e.g., precoder adjustment) and the number of layers (e.g., number of PUSCH transmission layers) from predefined options (e.g., in a codebook). In other examples, the SRI may include or refer to the uplink precoding information indication, and the co-phase information indication may be transmitted in the form of some explicit indication, such as an index indicating a co-phase adjustment from predefined options (e.g., in a codebook).
At 340, the UE 115-b may adjust transmission parameters (e.g., for SRS transmission, data transmission, etc.) based in part on the co-phase information indication and the uplink precoding information indication received 335. For example, in some cases, the UE 115-b may determine (e.g., based on the uplink precoding information indication) a precoding matrix, a number of PUSCH transmission layers, a selection of a subset of antenna ports for PUSCH transmission, etc. Additionally, or alternatively, the UE 115-b may adjust parameters for channel orthogonalization between different layers based on the received co-phase information. The UE 115-b may accordingly adjust SRS transmission parameters. In some cases, transmission parameters may be adjusted for other uplink transmissions (e.g., data transmissions) based on the received co-phase information and precoder information.
Figure 11 shows a diagram of a system including processing circuitry, such as, the transceiver 1120 and the processor 1140 of the device 1105 that supports configuration of SRS resource(s) for multi-panel uplink transmission, such as, the process flow 300 of Figure 3.
Regarding claim 35, as shown in Figure 3 and Figure 11, Li illustrates a user equipment (115-b), configured with 8 or more transmit antenna ports (Par. 86; Table 2), comprising processing circuitry (transceiver 1120, processor 1140) and a network interface (1150) connected thereto, the processing circuitry configured to: receive a precoding indication which indicates a precoder in a subset of precoders selected from a set of precoders (320, 335), TX/Ng transmit antenna ports, where Ng is a number of transmit antenna port groups (Pars. 86, 90, 104, 105; Table 2); and transmit a data transmission using the indicated precoder to a network node (base station 105-b; 325, 340; Par. 106).
Although Li teaches coherency and other ports coherency in paragraph [0086], Li does not explicitly show or teach that wherein the set of precoders comprises non coherent precoders, partially coherent precoders and fully coherent precoders.
Applicant note, although Li may not use the same wording as recited in claim 1 and other claims, it is not new and well known in the art of wireless communications for a User Equipment (UE) or a network node (e.g., base station/gNB) to receive a precoding indication (such as a Precoding Matrix Indicator, or PMI) which selects a precoder from a subset of precoders, where the overall set of potential precoders includes non-coherent, partially coherent, and fully coherent types. This practice is a standard part of modern communication systems, particularly in the context of advanced MIMO and beamforming technologies in 4G LTE and 5G NR.
Key aspects that are well known in the art include:
Antenna Coherency Signaling: The UE typically signals its antenna coherency capabilities (e.g., full, partial, or non-coherent) to the network node. This capability information determines which types of precoders the UE can effectively use.
Antenna Coherency: Wireless communication systems, including 5G, explicitly address UEs with varying antenna coherence capabilities (non-coherent, partially coherent, or fully coherent antennas). The codebook design and selection process are adapted to the UE's reported coherence capabilities. For instance, non-coherent precoders might have non-zero elements for only a subset of antenna ports to manage power allocation across non-coherent antennas.
8 Transmit Antennas: Precoding techniques and codebook designs for various numbers of transmit antennas, including 8, are standard components of wireless communication research and implementation.
Codebook Configuration/Subset Restriction: The network configures a specific codebook subset for the UE based on its capabilities and current channel conditions. This subset contains the precoders associated with the UE's transmit antenna ports.
Precoding Indication (PMI/TPMI): The network (or the UE itself in some uplink scenarios) selects a specific precoder from the configured subset and indicates this choice using an indicator (PMI or TPMI) sent via downlink control information (DCI) or other signaling.
Multiple Antenna Ports: The precoders are designed for and associated with a plurality of transmit antenna ports, as is standard in MIMO systems. Different precoders in the set account for varying degrees of phase coherence across these antenna ports.
Codebook-based Precoding: 5G NR uses codebooks containing a finite set of precoding matrices (precoders). The UE reports a Precoding Matrix Indicator (PMI) to the base station, which indicates its preferred precoder from the codebook.
Codebook Subset Restriction: To manage feedback overhead and complexity, especially in scenarios like multi-TRP (Transmission Reception Point) coherent joint transmission, the network can configure the UE to use only a specific subset of precoders from the full codebook.
The specific combination of a UE with 8 transmit antenna ports, using a subset of precoders chosen from a set that includes non-coherent, partially coherent, and fully coherent types, and the subset corresponding to a plurality of precoders associated with transmit antenna ports, describes existing practices and concepts for efficient and flexible MIMO operation in modern wireless systems. This mechanism allows the system to adapt the precoding strategy to a variety of UE hardware configurations and channel environments, thereby optimizing performance and efficiency.
For example, Petersson illustrates a communications system 100a in Figure 2 comprises a radio access network node 140a of a core network 120 configured to provide network access over one or more radio propagation channels to a terminal device 200 in a radio access network node. The radio access network 110 is operatively connected to a core network 120. The core network 120 is in turn operatively connected to a packet data network 130. Petersson further discloses a set of precoders in Figure 1 to be supported for transmission over the fifth generation (5G) New Radio (NR) air interface, and illustrates three different codebook subsets 10, 20, 30 for rank 1 precoders. Codebook subset 10 is referred to as non-coherent and only consists of antenna selection precoders. Codebook subset 20 is referred to as partial-coherent and only consists of antenna pair selection precoders. Codebook subset 30 is referred to as fully-coherent and only consists of full linear combining precoders. Depending on the terminal device coherence capability, the radio access network node can configure the terminal device with three different combinations of the codebook subsets. For non-coherent terminal devices, the radio access network node is expected to configure the terminal device with only the non-coherent codebook subset 10. For partially-coherent terminal devices, the radio access network node is expected to configure the terminal device with both the non-coherent and the partial-coherent codebook subsets 10, 20, and for fully-coherent terminal devices, the radio access network node is expected to configure the terminal device with all three codebook subsets 10, 20, 30.
Therefore, it would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art as taught by Petersson to modify the set of precoders of Li’s UE to include the non-coherent precoders, partially coherent precoders and fully coherent precoders in order to improve the trade-off between performance, system complexity (hardware and signal processing), power consumption, and the quality of channel knowledge available.
Regarding claims 1 and 18, claim 1 is a method claim perform by a user equipment, such as, the user equipment 115-b shown in Figure 3 of Li’s communication system, and claim 18 is a method claim perform by a network node, such as, the base station 105-b shown in Figure 3 of Li’s communication system. The claim features recited in the method steps of both claims 1 and 18 are similar to the claim features recited in the apparatus claim 35 for the similar reasons described in claim 35 above.
Regarding the dependent claims 2-4, 8-11, 14, 17, 19-21, 25-28, and 31, even Li and Petersson may not teach all the claim features as recited in the claims, the examiner is taking the official notice and as mentioned in claim 1 above that those claim features are the general knowledge of the skilled person in the art or are well known featured used in communications systems.
For example, regarding claims 2-4, 10, 19-21, and 27, the claim features of: further comprising receiving an indication of a number of transmission layers to the UE recited in claims 2 and 19; wherein the precoding indication indicates a precoder in a subset of precoders for each transmission layer recited in claims 3 and 20; further comprising receiving an indication of the subset of precoders recited in claims 4 and 21; and wherein receiving the precoding indication comprises receiving a configuration of a set of indices, each index indicating an available precoder in the subset of precoders and each index being mapped to a transmit precoding matrix index (TPMI) recited in claims 10 and 27 are inherently applied to the claims and described in at least paragraphs [0089], [0105], and [0106] of Li’s reference.
Regarding claims 8, 9, 25, and 26, the claim features of: wherein the subset of precoders is determined based on an antenna configuration of the UE recited in claims 8 and 25; and wherein the antenna configuration comprises one or more of the number of transmit antenna port groups and coherency of the transmit antenna ports recited in claims 9 and 26 are inherently applied to the claims and described in at least paragraphs [0044], [0045], and [0085]-[0087] of Li’s reference.
Regarding claims 11, 14, 28, and 31, the claim features: wherein the number of transmit antenna ports is 8 and the number of transmit antenna port groups is 4 and wherein the subset of precoders corresponds to a plurality of precoders associated with 2 transmit antenna ports, wherein there are 4 subsets of precoders associated with the 4 transmit antenna port groups, and wherein each transmit antenna port group comprises 2 transmit antenna ports and wherein each of the 4 subsets of precoders is fully coherent precoders recited in claims 11 and 28; and wherein the number of transmit antenna ports is 8 and the number of transmit antenna port groups is 2 and wherein the subset of precoders corresponds to a plurality of precoders associated with 4 transmit antenna ports recited in claims 14 and 31 are inherently applied to the claims and described in at least paragraph [00869] and Table 2 of Li’s reference.
Regarding claim 17, the claim features of wherein only precoders that contain non-zero coefficients for transmit antenna ports that are mutually coherent, and coefficients of zero for the remaining transmit antenna ports, are part of the subset of precoders are inherently applied to the claims and described in at least paragraphs [0089] and [0104] of Li’s reference.
Conclusion
The prior art made of record and not relied upon is considered pertinent to applicant's disclosure.
Koo et al. (US 2013/0083743 A1) relates to a method comprises the steps of: determining, from a predetermined codebook, a first precoding matrix which is a precoding matrix for the particular user device during signal reception, and determining one or more second precoding matrices for the other user devices which are to be multiplexed in a predetermined resource region with the particular user device, wherein the one or more second precoding matrices are determined within a codebook subset of the predetermined codebook linked with the first precoding matrix; and transmitting, to the base station, first precoding matrix information indicating the first precoding matrix and second precoding matrix information indicating the one or more second precoding matrices.
Parkvall et al. (US 2017/0201300 A1) relates to a wireless device determines a subset of precoders out of the set of precoders; and transmits, to the RN, at least one Sounding Reference Signal (SRS) precoded with a respective at least one precoder comprised in the subset. The RN receives, from the wireless device, at least one SRS precoded with a respective at least one precoder comprised in a subset of precoders; and transmits, to the wireless device, a signal indicative of a selected precoder to be used for a transmission to the RN, wherein the selected precoder is indirectly selected based on the received at least one SRS.
PARK et al. (US 2019/0207731 A1) relates to a method for performing uplink transmission by a user equipment (UE) in a wireless communication system includes: receiving sounding reference signal (SRS) resource configuration information form a base station, in which the SRS resource configuration information includes SRS resource information and association configuration information between a first SRS and a second SRS that is a target of the SRS resource configuration information; and transmitting precoded the second SRS to the base station on an SRS resource indicated by the SRS resource information, and the second SRS may be transmitted based on the precoding applied to the first SRS indicated by the association configuration information.
Park et al. (US 2020/0083,939 A1) relates to a method for transmitting a codebook-based Physical Uplink Shared Channel (PUSCH) performed by a User Equipment (UE) in a wireless communication system may include receive downlink control information (DCI) for uplink (UL) transmission scheduling; and performing codebook based PUSCH transmission based on precoding information included in the DCI, when the PUSCH is transmitted using four antenna ports, the codebook includes: a first group including non-coherent precoding matrixes for selecting only one port for each layer, a second group including partial-coherent precoding matrixes for selection two ports in at least one layer, and a third group including full-coherence precoding matrixes for selection all ports for each of the layers.
HARRISON et al. (US 2020/0162133 A1) relates to a UE transmits capability information indicating that the UE is capable of transmitting simultaneously on multiple RS resources and/or receives first and second RS configurations, where the first RS configuration is a first list of SRS resources that at least correspond to RS resource indications used for PUSCH transmission, and the second RS configuration is a second list of RS resources that may be used for SRS transmission. The UE receives an indication of at least one RS resource and transmits a physical channel on antennas of the UE associated with the indicated RS resources.
Any inquiry concerning this communication or earlier communications from the examiner should be directed to Young T. Tse whose telephone number is (571)272-3051. The examiner can normally be reached Mon-Fri 10:30am-7pm.
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If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Chieh M Fan can be reached at 571-272-3042. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300.
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/Young T. Tse/Primary Examiner, Art Unit 2632