IP Library › Granted Patent US 12,439,403
Granted Patent B2
US 12,439,403 · App. 17/856,622 · Granted Oct 7, 2025

Increasing transmissions of sounding reference signals in wireless communication systems

Inventors: Chuangxin Jiang (Guangdong, CN); Zhaohua Lu (Guangdong, CN); Hao Wu (Guangdong, CN); Shujuan Zhang (Guangdong, CN)
Assignee: ZTE Corporation
H04W72/1268H04L1/08H04L5/0051H04W80/02
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Quick Facts
Patent No.
US 12,439,403
App. No.
17/856,622
Granted
Oct 7, 2025
Kind
B2
Abstract

Methods, systems, and devices for increasing transmission capacity of sounding reference signals (SRS) in mobile communication technology are described. An example method for wireless communication includes receiving, by a wireless device from a network node, a configuration comprising A orthogonal code sequences for a sounding reference signal (SRS) resource, wherein each of the A orthogonal code sequences is configured for L adjacent SRS symbols within the SRS resource, wherein L is a length of each of the A orthogonal code sequences, and wherein L and A are positive integers, and transmitting a reference signal that is generated based on the configuration.

Claims (44)

1. A method for wireless communication, comprising:

transmitting, by a network node, a configuration comprising A orthogonal code sequences for a sounding reference signal (SRS) resource, wherein each of the A orthogonal code sequences is configured for L adjacent SRS symbols within the SRS resource, wherein L is a length of each of the A orthogonal code sequences, wherein L and A are positive integers,

wherein the A orthogonal code sequences for the SRS resource are configured by a high-level message comprising Radio Resource Control (RRC) signaling or Medium Access Control (MAC) Control Element (CE) signaling, wherein A is equal to N/R, N/L or R/L, wherein N is a number of SRS symbols in the SRS resource and R is a repetition factor, wherein R and N are positive integers,

wherein the configuration further comprises B indications of whether basic sequences of L, R or N SRS symbols within the SRS resource are repeated, wherein the basic sequences are sequences of the L, R or N SRS symbols before the A orthogonal code sequences are applied to the L, R or N SRS symbols, wherein B is a positive integer, wherein B≤A, and

wherein the A orthogonal code sequences applied to the SRS symbols are based on a time-varying pattern, wherein the time-varying pattern is (1) predetermined or (2) configured using Radio Resource Control (RRC) signaling or Medium Access Control (MAC) Control Element (CE) signaling; and

receiving, by the network node from a wireless device, a reference signal that is generated based on the configuration.

2. The method of claim 1 , further comprising:

determining that a plurality of physical uplink control channel (PUCCH) symbols are scheduled concurrently with a subset of a plurality of SRS symbols; and

refraining, based on the orthogonal code sequences applied to the subset of the plurality of SRS symbols, from transmitting a portion of the plurality of SRS symbols.

3. The method of claim 1 , further comprising:

determining that a plurality of physical uplink control channel (PUCCH) symbols are scheduled concurrently with a subset of a plurality of SRS symbols; and

refraining, based on a Radio Resource Control (RRC) configuration, from transmitting a portion of the plurality of SRS symbols.

4. A method of wireless communication, comprising:

receiving, by a wireless device from a network node, a configuration comprising A orthogonal code sequences for a sounding reference signal (SRS) resource, wherein each of the A orthogonal code sequences is configured for L adjacent SRS symbols within the SRS resource, wherein L is a length of each of the A orthogonal code sequences, wherein L and A are positive integers,

wherein the A orthogonal code sequences for the SRS resource are configured by a high-level message comprising Radio Resource Control (RRC) signaling or Medium Access Control (MAC) Control Element (CE) signaling, wherein A is equal to N/R, N/L or R/L, wherein N is a number of SRS symbols in the SRS resource and R is a repetition factor, and wherein R and N are positive integers;

wherein the configuration further comprises B indications of whether basic sequences of L, R or N SRS symbols within the SRS resource are repeated, wherein the basic sequences are sequences of the L, R or N SRS symbols before the A orthogonal code sequences are applied to the L, R or N SRS symbols, wherein B is a positive integer, wherein B≤A, and

wherein the A orthogonal code sequences applied to the SRS symbols are based on a time-varying pattern, wherein the time-varying pattern is (1) predetermined or (2) configured using Radio Resource Control (RRC) signaling or Medium Access Control (MAC) Control Element (CE) signaling; and

transmitting, by the wireless device to the network node, a reference signal that is generated based on the configuration.

5. The method of claim 4 , wherein a plurality of physical uplink control channel (PUCCH) symbols are scheduled concurrently with a subset of a plurality of SRS symbols, the method further comprising:

receiving a modified subset of the plurality of SRS symbols, wherein the modified subset of the plurality of SRS symbols includes the subset of the plurality of SRS symbols with a portion of the plurality of SRS symbols removed, and wherein the portion of the plurality of SRS symbols is determined based on the orthogonal code sequences applied to the subset of the plurality of SRS symbols.

6. The method of claim 4 , wherein a plurality of physical uplink control channel (PUCCH) symbols are scheduled concurrently with a subset of a plurality of SRS symbols, the method further comprising:

receiving a modified subset of the plurality of SRS symbols, wherein the modified subset of the plurality of SRS symbols includes the subset of the plurality of SRS symbols with a portion of the plurality of SRS symbols removed, and wherein the portion of the plurality of SRS symbols is determined based on a Radio Resource Control (RRC) configuration.

7. An apparatus for wireless communication comprising a processor and a memory storing instructions, execution of which by the processor causes the apparatus to:

transmit a configuration comprising A orthogonal code sequences for a sounding reference signal (SRS) resource, wherein each of the A orthogonal code sequences is configured for L adjacent SRS symbols within the SRS resource, wherein L is a length of each of the A orthogonal code sequences, wherein L and A are positive integers,

wherein the A orthogonal code sequences for the SRS resource are configured by a high-level message comprising Radio Resource Control (RRC) signaling or Medium Access Control (MAC) Control Element (CE) signaling, wherein A is equal to N/R, N/L or R/L, wherein N is a number of SRS symbols in the SRS resource and R is a repetition factor, and wherein R and N are positive integers;

wherein the configuration further comprises B indications of whether basic sequences of L, R or N SRS symbols within the SRS resource are repeated, wherein the basic sequences are sequences of the L, R or N SRS symbols before the A orthogonal code sequences are applied to the L, R or N SRS symbols, wherein B is a positive integer, wherein B≤A, and

wherein the A orthogonal code sequences applied to the SRS symbols are based on a time-varying pattern, wherein the time-varying pattern is (1) predetermined or (2) configured using Radio Resource Control (RRC) signaling or Medium Access Control (MAC) Control Element (CE) signaling; and

receive, from a wireless device, a reference signal that is generated based on the configuration.

8. The apparatus of claim 7 , wherein the apparatus is further caused to:

determine that a plurality of physical uplink control channel (PUCCH) symbols are scheduled concurrently with a subset of a plurality of SRS symbols; and

refrain, based on the orthogonal code sequences applied to the subset of the plurality of SRS symbols, from transmitting a portion of the plurality of SRS symbols.

9. The apparatus of claim 7 , wherein the apparatus is further caused to:

determine that a plurality of physical uplink control channel (PUCCH) symbols are scheduled concurrently with a subset of a plurality of SRS symbols; and

refrain, based on a Radio Resource Control (RRC) configuration, from transmitting a portion of the plurality of SRS symbols.

10. An apparatus for wireless communication comprising a processor and a memory storing instructions, execution of which by the processor causes the apparatus to:

receive, from a network node, a configuration comprising A orthogonal code sequences for a sounding reference signal (SRS) resource, wherein each of the A orthogonal code sequences is configured for L adjacent SRS symbols within the SRS resource, wherein L is a length of each of the A orthogonal code sequences, wherein L and A are positive integers,

wherein the A orthogonal code sequences for the SRS resource are configured by a high-level message comprising Radio Resource Control (RRC) signaling or Medium Access Control (MAC) Control Element (CE) signaling, wherein A is equal to N/R, N/L or R/L, wherein N is a number of SRS symbols in the SRS resource and R is a repetition factor, wherein R and N are positive integers,

wherein the configuration further comprises B indications of whether basic sequences of L, R or N SRS symbols within the SRS resource are repeated, wherein the basic sequences are sequences of the L, R or N SRS symbols before the A orthogonal code sequences are applied to the L, R or N SRS symbols, wherein B is a positive integer, wherein B≤A, and

wherein the A orthogonal code sequences applied to the SRS symbols are based on a time-varying pattern, wherein the time-varying pattern is (1) predetermined or (2) configured using Radio Resource Control (RRC) signaling or Medium Access Control (MAC) Control Element (CE) signaling; and

transmit, to the network node, a reference signal that is generated based on the configuration.

11. The apparatus of claim 10 , wherein a plurality of physical uplink control channel (PUCCH) symbols are scheduled concurrently with a subset of a plurality of SRS symbols, and wherein the apparatus is further caused to:

receive a modified subset of the plurality of SRS symbols, wherein the modified subset of the plurality of SRS symbols includes the subset of the plurality of SRS symbols with a portion of the plurality of SRS symbols removed, and wherein the portion of the plurality of SRS symbols is determined based on the orthogonal code sequences applied to the subset of the plurality of SRS symbols.

12. The apparatus of claim 10 , wherein a plurality of physical uplink control channel (PUCCH) symbols are scheduled concurrently with a subset of a plurality of SRS symbols, and wherein the apparatus is further caused to:

receive a modified subset of the plurality of SRS symbols, wherein the modified subset of the plurality of SRS symbols includes the subset of the plurality of SRS symbols with a portion of the plurality of SRS symbols removed, and wherein the portion of the plurality of SRS symbols is determined based on a Radio Resource Control (RRC) configuration.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 1, 2022
From: JIANG, CHUANGXIN; LU, ZHAOHUA; WU, HAO; ZHANG, SHUJUAN
To: ZTE CORPORATION
Reel/Frame 060425/0445 →
Continuity (2)
Continuation PCTCN2020070239 · Jan 3, 2020
Related Publication 20220338220A1 · Oct 20, 2022
References Cited (31)
US 10367620B2 · Iyer et al. · 2019 [cited by applicant]
US 11323295B2 · Choi et al. · 2022 [cited by applicant]
US 20120014349A1 · Chung et al. · 2012 [cited by applicant]
US 20150065153A1 · Nissila et al. · 2015 [cited by applicant]
US 20150327244A1 · Pajukoski et al. · 2015 [cited by applicant]
US 20170048717A1 · Yoo et al. · 2017 [cited by applicant]
US 20180137199A1 · Miller et al. · 2018 [cited by applicant]
US 20190372734A1 · Choi et al. · 2019 [cited by applicant]
US 20210328739A1 · Davydov · 2021 [cited by examiner]
US 20220231812A1 · Go · 2022 [cited by examiner]
US 20230018270A1 · Okamura · 2023 [cited by examiner]
CN 102195703A · 2011 [cited by applicant]
CN 102647789A · 2012 [cited by applicant]
CN 104350690A · 2015 [cited by applicant]
CN 109565370A · 2019 [cited by applicant]
CN 110366837A · 2019 [cited by applicant]
KR 20190090869A · 2019 [cited by applicant]
International Search Report and Written Opinion for International Application No. PCT/CN2020/070239, mailed on Jun. 30, 2020 (7 pages). [cited by applicant]
European Search Report for EP Patent Application No. 20887357.0, dated Oct. 17, 2022, 8 pages. [cited by applicant]
CMCC, “Discussion on SRS capacity improvement,” 3GPP TSG RAN WG1 Meeting #82, R1-154303, Beijing, China, Aug. 24-28, 2015, 3 pages. [cited by applicant]
Qualcomm Incorporated, “Additional SRS symbols,” 3GPP TSG-RAN WG1 #97, R1-1907006, Reno, USA, May 13-17, 2019, 10 pages. [cited by applicant]
Korean notice of allowance issued in KR Patent Application No. 10-2022-7026370, dated Jan. 3, 2025, 8 pages, English translation included. [cited by applicant]
Ericsson, “On SRS Design,” 3GPP TSG-RAN WG1 #90, R1-1714316, Prague, Czechia, Aug. 21-25, 2017, 22 pages. [cited by applicant]
Ericsson, “SRS Design,” 3GPP TSG-RAN WG1 #89, R1-1708709, Hangzhou, China, May 15-19, 2017, 10 pages. [cited by applicant]
Chinese office action issued in CN Patent Application No. 202080086439.4, dated Oct. 24, 2024, 18 pages. English translation included. [cited by applicant]
Intel Corporation, “Enhancements to SRS Configurations for UL CoMP,” 3GPP TSG-RAN WG1 Meeting #70, R1-123178, Qingdao, China, Aug. 13-17, 2012, 6 pages. [cited by applicant]
European Communication under Rule 71(3) EPC issued in EP Patent Application No. 20887357.0, dated Oct. 7, 2024, 37 pages. [cited by applicant]
Dahlman et al., “5G NR: The Next Generation Wireless Access Technology,” Academic Press, Elsevier Ltd., London, 2018, ISBN 978-0-12-814323-0, p. 150. [cited by applicant]
3GPP TR 25.836, V4.0.0, (Dec. 2000), Technical Report, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NodeB Synchronisation for TDD; (Release 4), 19 pages. [cited by applicant]
3GPP TR 38.912, V14.1.0, (Jun. 2017), Technical Specification, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Study on New Radio (NR) access technology, (Release 14), 74 pages. [cited by applicant]
Chinese Notice of Grant of Invention Patent Right issued in CN Patent Application No. 202080086439.4, dated Apr. 1, 2025, 4 pages. English translation included. [cited by applicant]
Cited By (1)
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