Sharing of sounding reference signals (SRS) resources between new radio and long term evolution

Patent metadata

Field	Value
Publication number	US-12250167-B2
Application number	US-202017760560-A
Country	US
Kind code	B2
Filing date	Oct 30, 2020
Priority date	Oct 30, 2019
Publication date	Mar 11, 2025
Grant date	Mar 11, 2025

Abstract

A method, system and apparatus are disclosed. According to one or more embodiments, a network node is provided. The network node includes processing circuitry configured to: assign a plurality of wireless devices respective sounding reference signal, SRS, sequences of a common set of SRS sequences where the common set of SRS sequences are shared among a first radio access technology, RAT, and a second RAT, and receive SRS sequences according to the assignment of the respective SRS sequences of the common set of SRS sequences.

First claim

What is claimed is:

1. A network node, comprising:
processing circuitry configured to:
assign a plurality of wireless devices respective sounding reference signal (SRS) sequences of a common set of SRS sequences, the common set of SRS sequences being shared among a first radio access technology (RAT) and a second RAT; and
receive SRS sequences according to the assignment of the respective SRS sequences of the common set of SRS sequences,

wherein the common set of SRS sequences are configured for a time division duplex (TDD) same numerology non-standalone spectrum sharing between the first RAT and second RAT.

2. The network node of claim 1 , wherein the common set of sequences are partitioned equally among first RAT wireless devices and second RAT wireless devices.

3. The network node of claim 1 , wherein the common set of sequences are partitioned based at least on:
a fraction of deployments of first RAT wireless devices and second RAT wireless devices, or
a ratio of bandwidth parts (BWPs) associated with second RAT wireless devices to a total bandwidth of shared spectrum.

4. The network node of claim 1 , wherein the processing circuitry is further configured to:
determine a first region in a first RAT cell fails to overlap with second region in a second RAT cell; and
configure the first region in the first RAT cell and the second region in the second RAT cell to reuse SRS sequences.

5. The network node of claim 1 , wherein the assignment of the respective SRS sequences of the common set of SRS sequences is indicated using radio resource control (RRC) signaling, and/or
wherein a first set of SRS sequences of the common set of SRS sequences is assigned to a first set of first RAT beams and a second set of SRS sequence of the common set of SRS sequence is assigned to a second set of second RAT beams.

6. A method implemented by a network node, comprising:
assigning a plurality of wireless devices respective sounding reference signal (SRS) sequences of a common set of SRS sequences, the common set of SRS sequences being shared among a first radio access technology (RAT) and a second RAT; and
receiving SRS sequences according to the assignment of the respective SRS sequences of the common set of SRS sequences,
wherein the common set of SRS sequences are configured for a time division duplex (TDD) same numerology non-standalone spectrum sharing between the first RAT and second RAT.

7. The method of claim 6 , wherein the common set of sequences are partitioned:
equally among first RAT wireless devices and second RAT wireless devices, or
based at least on a fraction of deployments of first RAT wireless devices and second RAT wireless devices, or
based at least on a ratio of bandwidth parts (BWPs) associated with second RAT wireless devices to a total bandwidth of shared spectrum.

8. The method of claim 6 , further comprising:
determining a first region in a first RAT cell fails to overlap with second region in a second RAT cell; and
configuring the first region in the first RAT cell and the second region in the second RAT cell to reuse SRS sequences.

9. The method of claim 6 , wherein the assignment of the respective SRS sequences of the common set of SRS sequences is indicated using radio resource control (RRC) signaling, and/or
wherein a first set of SRS sequences of the common set of SRS sequences are assigned to a first set of first RAT beams and a second set of SRS sequence of the common set of SRS sequence are assigned to a second set of second RAT beams.

10. A wireless device configured to communicate with a network node, the wireless device comprising:
processing circuitry configured to:
receive an assignment of a first sounding reference signal (SRS) sequence of a common set of SRS sequences, the common set of SRS sequences being shared among a first radio access technology (RAT) and a second RAT; and
transmit the first SRS sequence according to the assignment,
wherein the common set of SRS sequences are configured for a time division duplex (TDD) same numerology non-standalone spectrum sharing between the first RAT and second RAT.

11. The wireless device of claim 10 , wherein the common set of sequences are partitioned equally among first RAT wireless devices and second RAT wireless devices.

12. The wireless device of claim 10 , wherein the common set of sequences are partitioned based at least on a fraction of deployments of first RAT wireless devices and second RAT wireless devices, or
wherein the common set of sequences are partitioned based at least on a ratio of bandwidth parts (BWPs) associated with second RAT wireless devices to a total bandwidth of shared spectrum.

13. The wireless device of claim 10 , wherein the assignment is indicated using radio resource control (RRC) signaling, and/or
wherein a first set of SRS sequences of the common set of SRS sequences are assigned to a first set of first RAT beams and a second set of SRS sequence of the common set of SRS sequence are assigned to a second set of second RAT beams.

14. A method implemented by a wireless device that is configured to communicate with a network node, the method comprising:
receiving an assignment of a first sounding reference signal (SRS) sequence of a common set of SRS sequences, the common set of SRS sequences being shared among a first radio access technology (RAT) and a second RAT; and
transmitting the first SRS sequence according to the assignment,
wherein the common set of SRS sequences are configured for a time division duplex (TDD) same numerology non-standalone spectrum sharing between the first RAT and second RAT.

15. The method of claim 14 , wherein the common set of sequences are partitioned:
equally among first RAT wireless devices and second RAT wireless devices, or
based at least on a fraction of deployments of first RAT wireless devices and second RAT wireless devices, or
based at least on a ratio of bandwidth parts (BWPs) associated with second RAT wireless devices to a total bandwidth of shared spectrum.

16. The method of claim 14 , wherein the assignment is indicated using radio resource control (RRC) signaling, and/or
wherein a first set of SRS sequences of the common set of SRS sequences are assigned to a first set of first RAT beams and a second set of SRS sequence of the common set of SRS sequence are assigned to a second set of second RAT beams.

Assignees

• Ericsson Telefon Ab L M

Inventors

• Afana Ali
• Mann Karl
• Boudreau Gary

Classifications

• H04L5/0007

  the frequencies being orthogonal, e.g. OFDM(A) or DMT · CPC title

• H04L5/1469

  using time-sharing · CPC title

• H04L5/0048 Primary

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04L5/001 Primary

  the frequencies being arranged in component carriers · CPC title