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US-12627444-B2 - Positioning reference signal design for phase compensation in bandwidth stitching

US12627444B2US 12627444 B2US12627444 B2US 12627444B2US-12627444-B2

Abstract

Disclosed are techniques for wireless communication. In an aspect, a receiver device receives a first plurality of positioning reference signal (PRS) resources scheduled within a PRS bandwidth on a plurality of time intervals, the first plurality of PRS resources staggered in frequency across the plurality of time intervals, each pair of consecutive PRS resources of the first plurality of PRS resources partially overlapping in frequency, and performs phase estimation for the first plurality of PRS resources based, at least in part, on the overlap in frequency between each pair of consecutive PRS resources.

Inventors

  • Jingchao BAO
  • Sony Akkarakaran
  • Tao Luo
  • Juan Montojo
  • Alexandros Manolakos

Assignees

  • QUALCOMM INCORPORATED

Dates

Publication Date
20260512
Application Date
20211101
Priority Date
20210107

Claims (20)

  1. 1 . A method of wireless communication performed by a receiver device, comprising: receiving a first plurality of repetitions of a first positioning reference signal (PRS) resource scheduled within a PRS bandwidth on a plurality of time intervals, the first plurality of repetitions of the first PRS resource staggered in frequency across the plurality of time intervals, each pair of consecutive repetitions of the first plurality of repetitions of the first PRS resources partially overlapping in frequency; and performing phase estimation for the first plurality of repetitions of the first PRS resource based, at least in part, on the overlap in frequency between each pair of consecutive repetitions.
  2. 2 . The method of claim 1 , further comprising: receiving a configuration of a size of the overlap in frequency.
  3. 3 . The method of claim 2 , wherein the configuration of the size of the overlap in frequency is received from a location server or a serving base station.
  4. 4 . The method of claim 1 , further comprising: transmitting a recommendation of a size of the overlap in frequency to a network entity.
  5. 5 . The method of claim 4 , wherein the network entity comprises a location server or a serving base station.
  6. 6 . The method of claim 1 , wherein a size of the overlap in frequency is specified as a number of bandwidth intervals, an amount of bandwidth, or a ratio of a bandwidth of each of the first plurality of repetitions of the first PRS resource to the PRS bandwidth.
  7. 7 . The method of claim 6 , wherein the number of bandwidth intervals comprises a number of resource elements, a number of resource blocks, or both.
  8. 8 . The method of claim 1 , wherein: at least a second plurality of repetitions of a second PRS resource are scheduled within the PRS bandwidth on the plurality of time intervals, the second plurality of repetitions of the second PRS resource staggered in frequency across the plurality of time intervals, and at least one repetition of the first plurality of repetitions of the first PRS resource, at least one repetition of the second plurality of repetitions of the second PRS resource, or both, wrap around in the PRS bandwidth in at least one time interval of the plurality of time intervals.
  9. 9 . The method of claim 8 , wherein a number of the plurality of time intervals is based on the PRS bandwidth divided by a bandwidth of each of the first plurality of repetitions of the first PRS resource.
  10. 10 . The method of claim 8 , wherein a number of the plurality of time intervals is given by a mathematical floor function of the PRS bandwidth divided by a bandwidth of each of the first plurality of repetitions of the first PRS resource.
  11. 11 . The method of claim 8 , wherein a number of the plurality of time intervals is at least one time interval more than a mathematical floor function of the PRS bandwidth divided by a bandwidth of each of the first plurality of repetitions of the first PRS resource.
  12. 12 . The method of claim 8 , wherein a number of the plurality of time intervals is less than or equal to the PRS bandwidth divided by a bandwidth of each of the first plurality of repetitions of the first PRS resource.
  13. 13 . The method of claim 8 , wherein a number of the plurality of time intervals is greater than or equal to the PRS bandwidth divided by a bandwidth of each of the first plurality of repetitions of the first PRS resource.
  14. 14 . The method of claim 8 , wherein a number of the first plurality of repetitions of the first PRS resource is the same as a number of the second plurality of repetitions of the second PRS resource.
  15. 15 . The method of claim 8 , further comprising: receiving the second plurality of repetitions of the second PRS resource, each pair of consecutive repetitions of the second plurality of repetitions of the second PRS resource partially overlapping in frequency; and performing phase estimation for the second plurality of repetitions of the second PRS resource based, at least in part, on the overlap in frequency between each pair of consecutive repetitions of the second plurality of repetitions of the second PRS resource.
  16. 16 . The method of claim 8 , wherein one or more repetitions of the second plurality of repetitions of the second PRS resource overlaps in frequency with one or more repetitions of the first plurality of repetitions of the first PRS resource in one or more time intervals of the plurality of time intervals.
  17. 17 . The method of claim 16 , wherein: the first plurality of repetitions of the first PRS resource has a first comb pattern, the second plurality of repetitions of the second PRS resource has a second comb pattern, and the one or more repetitions of the first plurality of repetitions of the first PRS resource and the one or more repetitions of the second plurality of repetitions of the first PRS resource have a third comb pattern in an overlap region between each of the one or more repetitions of the first plurality of repetitions of the first PRS resource and the one or more repetitions of the second plurality of repetitions of the second PRS resource.
  18. 18 . The method of claim 17 , wherein: the first comb pattern is the same as the second comb pattern, and the third comb pattern is twice the first comb pattern.
  19. 19 . The method of claim 17 , wherein symbols of the one or more repetitions of the first plurality of repetitions of the first PRS resource in the overlap region are interleaved with symbols of the one or more repetitions of the second plurality of repetitions of the second PRS resource.
  20. 20 . The method of claim 17 , further comprising: receiving a configuration of at least the third comb pattern.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS The present Application for Patent claims priority to Greek Patent Application No. 20210100012, entitled “POSITIONING REFERENCE SIGNAL DESIGN FOR PHASE COMPENSATION IN BANDWIDTH STITCHING,” filed Jan. 7, 2021, and is a national stage application, filed under 35 U.S.C. § 371, of International Patent Application No. PCT/US2021/072156, entitled, “POSITIONING REFERENCE SIGNAL DESIGN FOR PHASE COMPENSATION IN BANDWIDTH STITCHING”, filed Nov. 1, 2021, both of which are assigned to the assignee hereof and are expressly incorporated herein by reference in their entirety. BACKGROUND OF THE DISCLOSURE 1. Field of the Disclosure Aspects of the disclosure relate generally to wireless communications. 2. Description of the Related Art Wireless communication systems have developed through various generations, including a first-generation analog wireless phone service (1G), a second-generation (2G) digital wireless phone service (including interim 2.5G and 2.75G networks), a third-generation (3G) high speed data, Internet-capable wireless service and a fourth-generation (4G) service (e.g., Long Term Evolution (LTE) or WiMax). There are presently many different types of wireless communication systems in use, including cellular and personal communications service (PCS) systems. Examples of known cellular systems include the cellular analog advanced mobile phone system (AMPS), and digital cellular systems based on code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), the Global System for Mobile communications (GSM), etc. A fifth generation (5G) wireless standard, referred to as New Radio (NR), calls for higher data transfer speeds, greater numbers of connections, and better coverage, among other improvements. The 5G standard, according to the Next Generation Mobile Networks Alliance, is designed to provide data rates of several tens of megabits per second to each of tens of thousands of users, with 1 gigabit per second to tens of workers on an office floor. Several hundreds of thousands of simultaneous connections should be supported in order to support large sensor deployments. Consequently, the spectral efficiency of 5G mobile communications should be significantly enhanced compared to the current 4G standard. Furthermore, signaling efficiencies should be enhanced and latency should be substantially reduced compared to current standards. SUMMARY The following presents a simplified summary relating to one or more aspects disclosed herein. Thus, the following summary should not be considered an extensive overview relating to all contemplated aspects, nor should the following summary be considered to identify key or critical elements relating to all contemplated aspects or to delineate the scope associated with any particular aspect. Accordingly, the following summary has the sole purpose to present certain concepts relating to one or more aspects relating to the mechanisms disclosed herein in a simplified form to precede the detailed description presented below. In an aspect, a method of wireless communication performed by a receiver device includes receiving a first plurality of positioning reference signal (PRS) resources scheduled within a PRS bandwidth on a plurality of time intervals, the first plurality of PRS resources staggered in frequency across the plurality of time intervals, each pair of consecutive PRS resources of the first plurality of PRS resources partially overlapping in frequency; and performing phase estimation for the first plurality of PRS resources based, at least in part, on the overlap in frequency between each pair of consecutive PRS resources. In an aspect, a method of wireless communication performed by a network entity includes scheduling a first plurality of positioning reference signal (PRS) resources within a PRS bandwidth on a plurality of time intervals, the first plurality of PRS resources staggered in frequency across the plurality of time intervals, wherein each pair of consecutive PRS resources of the first plurality of PRS resources is configured to partially overlap in frequency; and transmitting an indication of at least the overlap in frequency between each pair of consecutive PRS resources of the first plurality of PRS resources to enable a receiver device to perform phase estimation based, at least in part, on the overlap in frequency between each pair of consecutive PRS resources. In an aspect, a receiver device includes a memory; at least one transceiver; and at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to: receive a first plurality of positioning reference signal (PRS) resources scheduled within a PRS bandwidth on a plurality of time intervals, the first plurality of PRS resources staggered in frequency across the plurality of time intervals, each pair of consecutive PRS resources of the