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US-20260129632-A1 - SYSTEMS AND METHODS FOR TRANSMITTING ON MULTIPLE SOUNDING REFERENCE SIGNAL RESOURCES IN MULTIPLE TRANSMISSION/RECEPTION POINT OPERATION

US20260129632A1US 20260129632 A1US20260129632 A1US 20260129632A1US-20260129632-A1

Abstract

Presented are systems and methods for transmitting on multiple sounding reference signal resources in a multiple transmission/reception point operation. A wireless communication device can determine whether the condition that the wireless communication device reports supporting simultaneous physical uplink shared channel transmissions is met. If the condition is met, the wireless communication device can then transmit simultaneous physical uplink shared channel transmissions on multiple sounding reference signal resources. The wireless communication node can receive simultaneous physical uplink shared channel transmissions on multiple sounding reference signal resources.

Inventors

  • Yang Zhang
  • Bo Gao
  • Ke Yao
  • Xiaolong GUO
  • Meng MEI

Assignees

  • ZTE CORPORATION

Dates

Publication Date
20260507
Application Date
20260102

Claims (20)

  1. 1 . A method comprising: determining, by a wireless communication device, that at least one condition is met, which includes that the wireless communication device reports supporting simultaneous physical uplink shared channel (PUSCH) transmissions; and simultaneously transmitting, by the wireless communication device in response to the at least one condition being met, on a plurality of sounding reference signal (SRS) resources that occupy a same set of one or more resources.
  2. 2 . The method of claim 1 , comprising: determining, by the wireless communication device, that the at least one condition is met, which further includes that the wireless communication device is configured with a plurality of sets of SRS resources for codebook or non-codebook based PUSCH transmission.
  3. 3 . The method of claim 1 , wherein the same set of one or more resources comprises at least one of: at least one resource block (RB) or at least one symbol.
  4. 4 . The method of claim 2 , wherein at least one of: the wireless communication device is configured with the plurality of sets of SRS resources, for codebook based PUSCH transmissions; or the wireless communication device simultaneously transmits on only one SRS resource from each of the plurality of sets of SRS resources.
  5. 5 . The method of claim 2 , wherein at least one of: the wireless communication device is configured with the plurality of sets of SRS resources, for codebook based PUSCH transmissions; when the wireless communication device supports simultaneous PUSCH transmissions in spatial domain modulation (SDM) scheme, up to 2 ports are configured to each of the SRS resources; when the wireless communication device supports simultaneous PUSCH transmissions in single frequency network (SFN) scheme, up to 2 ports or 4 ports are configured to each of the SRS resources; or a maximum number of SRS resources on which the wireless communication device can simultaneously transmit, is according to a capability reported by the wireless communication device.
  6. 6 . The method of claim 2 , wherein at least one of: the wireless communication device is configured with the plurality of sets of SRS resources, for non-codebook based PUSCH transmissions; the wireless communication device can simultaneously transmit on all SRS resources from the plurality of sets of SRS resources; or a maximum number of SRS resources on which the wireless communication device can simultaneously transmit, is according to a capability reported by the wireless communication device.
  7. 7 . The method of claim 2 , wherein at least one of: the wireless communication device is configured with the plurality of sets of SRS resources, for non-codebook based PUSCH transmissions or the maximum number of SRS resources on which the wireless communication device can simultaneously transmit, is according to a capability reported by the wireless communication device.
  8. 8 . The method of claim 2 , wherein at least one of: the wireless communication device is configured with the plurality of sets of SRS resources, for non-codebook based PUSCH transmissions; or the maximum number of SRS resources from the SRS resource set on which the wireless communication device can simultaneously transmit, is according to a capability reported by the wireless communication device.
  9. 9 . The method of claim 2 , wherein the wireless communication device's capability to support simultaneous PUSCH transmissions involves receiving a downlink control information (DCI) signaling triggering PUSCH transmission in spatial domain modulation (SDM) scheme or single frequency network (SFN) scheme.
  10. 10 . The method of claim 2 , wherein each of the sets of SRS resources is configured with usage set to ‘nonCodebook’.
  11. 11 . The method of claim 1 , wherein the at least one condition includes configuration of one SRS port for each of the SRS resources.
  12. 12 . A wireless communication device comprising: at least one processor configured to: determine that at least one condition is met, which includes that the wireless communication device reports supporting simultaneous physical uplink shared channel (PUSCH) transmissions; and simultaneously transmit, via at least one transmitter in response to the at least one condition being met, on a plurality of sounding reference signal (SRS) resources that occupy a same set of one or more resources.
  13. 13 . The wireless communication device of claim 12 , wherein meeting the at least one condition further includes that the wireless communication device is configured with a plurality of sets of SRS resources for codebook or non-codebook based PUSCH transmission.
  14. 14 . The wireless communication device of claim 12 , wherein the same set of one or more resources comprises at least one of: at least one resource block (RB) or at least one symbol.
  15. 15 . The wireless communication device of claim 13 , wherein at least one of: the wireless communication device is configured with the plurality of sets of SRS resources, for codebook based PUSCH transmissions; or the wireless communication device simultaneously transmits on only one SRS resource from each of the plurality of sets of SRS resources.
  16. 16 . The wireless communication device of claim 13 , wherein at least one of: the wireless communication device is configured with the plurality of sets of SRS resources, for codebook based PUSCH transmissions; when the wireless communication device supports simultaneous PUSCH transmissions in spatial domain modulation (SDM) scheme, up to 2 ports are configured to each of the SRS resources; when the wireless communication device supports simultaneous PUSCH transmissions in single frequency network (SFN) scheme, up to 2 ports or 4 ports are configured to each of the SRS resources; or a maximum number of SRS resources on which the wireless communication device can simultaneously transmit, is according to a capability reported by the wireless communication device.
  17. 17 . The wireless communication device of claim 13 , wherein at least one of: the wireless communication device is configured with the plurality of sets of SRS resources, for non-codebook based PUSCH transmissions; the wireless communication device can simultaneously transmit on all SRS resources from the plurality of sets of SRS resources; or a maximum number of SRS resources on which the wireless communication device can simultaneously transmit, is according to a capability reported by the wireless communication device.
  18. 18 . The wireless communication device of claim 13 , wherein at least one of: the wireless communication device is configured with the plurality of sets of SRS resources, for non-codebook based PUSCH transmissions or the maximum number of SRS resources on which the wireless communication device can simultaneously transmit, is according to a capability reported by the wireless communication device.
  19. 19 . A method comprising: receiving, by a wireless communication node, simultaneous transmissions from a wireless communication device, on a plurality of sounding reference signal (SRS) resources that occupy a same set of one or more resources, wherein the simultaneous transmissions are in response to at least one condition being met, which includes that the wireless communication device reports supporting simultaneous physical uplink shared channel (PUSCH) transmissions.
  20. 20 . A wireless communication node comprising: at least one processor configured to: receive, via at least one receiver, simultaneous transmissions from a wireless communication device, on a plurality of sounding reference signal (SRS) resources that occupy a same set of one or more resources, wherein the simultaneous transmissions are in response to at least one condition being met, which includes that the wireless communication device reports supporting simultaneous physical uplink shared channel (PUSCH) transmissions.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application claims the benefit of priority under 35 U.S.C. § 120 as a continuation of PCT Patent Application No. PCT/CN2023/111282, filed on Aug. 4, 2023, the disclosure of which is incorporated herein by reference in its entirety. TECHNICAL FIELD The disclosure relates generally to wireless communications, including but not limited to systems and methods for transmitting on multiple sounding reference signal resources in a multiple transmission/reception point operation. BACKGROUND Comprehensive coverage is a fundamental aspect of cellular network deployments. Mobile operators use various network nodes to expand coverage. New concepts like integrated access and backhaul (IAB) systems have been explored, eliminating the need for wired backhaul and improving network efficiency. Similarly, the RF repeater is another addition to supplement the coverage for 2G, 3G, and 4G networks. As the industry transitions to the 5G new radio (NR) system, the incorporation of multiple-input, multiple-output (MIMO) features and multiple transmission/reception point (MTRP) operations can further augment coverage and optimize network performance. SUMMARY The example embodiments disclosed herein are directed to solving the issues relating to one or more of the problems presented in the prior art, as well as providing additional features that will become readily apparent by reference to the following detailed description when taken in conjunction with the accompany drawings. In accordance with various embodiments, example systems, methods, devices and computer program products are disclosed herein. It is understood, however, that these embodiments are presented by way of example and are not limiting, and it will be apparent to those of ordinary skill in the art who read the present disclosure that various modifications to the disclosed embodiments can be made while remaining within the scope of this disclosure. At least one aspect is directed to a system, method, apparatus, or a computer-readable medium. A wireless communication device (e.g., UE) can determine that at least one condition is satisfied/met, which includes that the wireless communication device reports supporting simultaneous (e.g., at least partial overlap or concurrency in time domain) physical uplink shared channel (PUSCH) transmissions. The wireless communication device can simultaneously transmit, in response to at least one condition being satisfied/met, on a plurality of sounding reference signal (SRS) resources that occupy a same set of one or more resources. In some implementations, the same set of one or more resources can comprise/include at least one of a resource block (RB) or a symbol. In some implementations, the wireless communication device can determine that at least one condition is satisfied/met, which can include that the wireless communication device is configured with a plurality of sets of SRS resources for codebook or non-codebook based PUSCH transmission. In some implementations, the wireless communication device can be configured with a plurality of sets of SRS resources for codebook-based PUSCH transmissions. The wireless communication device can simultaneously transmit on only one SRS resource from each of the plurality of sets of SRS resources, or the maximum number of SRS resources on which the wireless communication device can simultaneously transmit is according to the capability reported by the wireless communication device. In certain implementations, the wireless communication device can be configured with a plurality of sets of SRS resources for codebook based PUSCH transmissions. When the wireless communication device supports simultaneous PUSCH transmissions in the spatial domain modulation (SDM) scheme, up to 2 ports can be configured to each of the SRS resources. Similarly, when the wireless communication device supports simultaneous PUSCH transmissions in single frequency network (SFN) scheme, up to 2 ports or 4 ports can be configured to each of the SRS resources. The maximum number of SRS resources on which the wireless communication device can simultaneously transmit is according to the capability reported by the wireless communication device. In some implementations, the wireless communication device can be configured with the plurality of sets of SRS resources for non-codebook based PUSCH transmissions. The wireless communication device can simultaneously transmit on all SRS resources from the plurality of sets of SRS resources. The maximum number of SRS resources on which the wireless communication device can simultaneously transmit is according to the capability reported by the wireless communication device. In certain implementations, the wireless communication device can be configured with the plurality of sets of SRS resources for non-codebook based PUSCH transmissions. The maximum number of SRS resources on which the wireless communication device can simultaneously trans