IP Library › Granted Patent US 11,398,857

Granted Patent B2

US 11,398,857 · App. 16/959,943 · Granted Jul 26, 2022

User equipment capability reporting method, slot offset determination method and devices

Inventors: Yang Song (Chang'an Dongguan, CN); Peng Sun (Chang'an Dongguan, CN)

Assignee: VIVO MOBILE COMMUNICATION CO., LTD.

H04B7/0626 H04W8/24 H04W24/10 H04W72/042 H04W72/0446

View Patent ↗

Loading inventors, assignments & file history…

Monitor This Case

Get email alerts when status or documents change.

Order Certified Copies

Most orders are placed with the USPTO same day — all within 24 business hours.

Order via The Patent Place →

Pre-filled with this patent's details

Quick Facts

Patent No.: US 11,398,857
App. No.: 16/959,943
Granted: Jul 26, 2022
Kind: B2

External Links

USPTO Patent Center↗ Full Patent PDF↗

Abstract

A slot offset determination method includes: receiving CSI report request information from a network device; determining a reference slot offset T in accordance with the CSI report request information; and determine a slot offset for a CSI reference resource in accordance with the reference slot offset T.

Claims (77)

1. A slot offset determination method performed by a User Equipment (UE), comprising:

receiving Channel State Information (CSI) report request information from a network device;

determining a reference slot offset T in accordance with the CSI report request information; and

determining a slot offset for a CSI reference resource in accordance with the reference slot offset T,

wherein the slot offset for the CSI reference resource refers to a time difference between a slot for CSI transmitted by the UE to the network device and a slot where the CSI reference source is located,

wherein the determining the reference slot offset T in accordance with the CSI report request information comprises:

determining a CSI computation time for the CSI report in accordance with the CSI report request information; and

determining the reference slot offset T in accordance with the CSI computation time,

wherein the determining the reference slot offset T in accordance with the CSI computation time comprises:

determining the reference slot offset T for CSI reference resource, according to a ratio of the CSI computation time to the number of OFDM symbols within one slot.

2. The slot offset determination method according to claim 1 , wherein the determining the CSI computation time for the CSI report in accordance with the CSI report request information comprises:

determining a numerology and a CSI computation complexity level corresponding to the CSI report in accordance with the CSI report request information; and

determining the CSI computation time for the CSI report at the numerology and the CSI computation complexity level,

wherein the determining the CSI computation time for the CSI report at the numerology and the CSI computation complexity level comprises any one of: determining the CSI computation time for the CSI report at the numerology and the CSI computation complexity level in accordance with capability information associated with CSI computation of the UE; receiving the CSI computation time for the CSI report at the numerology and the CSI computation complexity level configured by the network device in advance through signaling; and determining the CSI computation time for the CSI report at the numerology and the CSI computation complexity level in accordance with a preset CSI computation time list.

3. The slot offset determination method according to claim 1 , wherein the determining the reference slot offset T for CSI reference resource, according to a ratio of the CSI computation time to the number of OFDM symbols within one slot comprises:

calculating a ratio of the CSI computation time to the number of OFDM symbols within one slot;

rounding up the ratio to acquire an integer; and

determining the integer as the reference slot offset T.

4. The slot offset determination method according to claim 1 , wherein the determining the reference slot offset T in accordance with the CSI computation time comprises:

when the CSI report determined in accordance with the CSI report request information is a periodic or semi-persistent CSI report, determining a first reference slot offset T1 in accordance with the CSI computation time.

5. The slot offset determination method according to claim 1 , wherein the determining the reference slot offset T in accordance with the CSI computation time comprises:

when the CSI report determined in accordance with the CSI report request information is an aperiodic CSI report and the slot within which the CSI report is indicated by the network device in Downlink Control Information (DCI) is different from the slot within which the DCI comprising the CSI report request information is located, determining a second reference slot offset T2 in accordance with the CSI computation time.

6. The slot offset determination method according to claim 1 , wherein when the CSI report request information indicates that there is a plurality of CSI reports and there is a plurality of reference slot offsets T determined in accordance with the CSI computation time for the plurality of CSI reports, the determining the slot offset for the CSI reference resource in accordance with the reference slot offset T comprises:

determining the slot offset for the CSI reference resource in accordance with a maximum value of the plurality of determined reference slot offsets T; or

determining slot offsets of at least two CSI reference resources in accordance with different reference slot offsets T in the plurality of determined reference slot offsets T.

7. The slot offset determination method according to claim 1 , further comprising:

transmitting the capability information associated with CSI computation to the network device, wherein the capability information associated with CSI computation comprises one or more of CSI reporting types supported by the UE, a value of the maximum number of CSI reports supported by the UE, the CSI computation time of each CSI reporting type supported by the UE corresponding to at least one CSI computation complexity level at different numerologies, and identifier(s) of the list(s) of CSI computation time supported by the UE.

8. The slot offset determination method according to claim 7 , wherein the capability information associated with CSI computation further comprises one or more of:

information indicating that the UE supports a capability of updating CSI belonging to a plurality of Component Carriers (CCs) simultaneously as well as a CSI computation time corresponding to each CSI computation complexity level at a corresponding numerology; and

information indicating that the UE supports a capability of updating CSI report group information having different CSI reporting types or at different CSI computation complexity levels or different numerologies simultaneously as well as corresponding CSI computation time.

9. A slot offset determination method performed by a network device, comprising:

determining a Channel State Information (CSI) computation time for a User Equipment (UE) to generate a target CSI report;

determining a reference slot offset T in accordance with the CSI computation time; and

transmitting the reference slot offset T to the UE,

wherein the determining the reference slot offset T in accordance with the CSI computation time comprises:

determining the reference slot offset T for CSI reference resource, according to a ratio of the CSI computation time to the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols within one slot.

10. The slot offset determination method according to claim 9 , wherein the generating the CSI computation time for the UE to generate the target CSI report comprises:

receiving the CSI computation time for the UE to generate the target CSI report from the UE, or

wherein the generating the CSI computation time for the UE to generate the target CSI report comprises:

receiving an identifier of a CSI computation time list supported by the UE from the UE;

determining a target CSI computation time list matching the identifier from a set of preset CSI computation time lists in accordance with the identifier; and

looking up the CSI computation time matching the target CSI report in the target CSI computation time list.

11. The slot offset determination method according to claim 9 , wherein the determining the reference slot offset T for CSI reference resource, according to a ratio of the CSI computation time to the number of OFDM symbols within one slot comprises:

calculating a ratio of the CSI computation time to the number of OFDM symbols within one slot;

rounding up the ratio to acquire an integer; and

determining the integer as the reference slot offset T.

12. A User Equipment (UE), comprising a memory, a processor, and a wireless communication program stored in the memory and executed by the processor, wherein the processor is configured to execute the wireless communication program so as to implement a slot offset determination method performed by the UE, comprising: