IP Library › Granted Patent US 10,735,161
Granted Patent B2
US 10,735,161 · App. 16/089,639 · Granted Aug 4, 2020

Channel state information based processing method, and relevant devices and computer storage medium

Inventors: Hao Wu (Shenzhen, CN); Yijian Chen (Shenzhen, CN); YuNgok Li (Shenzhen, CN); Zhaohua Lu (Shenzhen, CN); Jianxing Cai (Shenzhen, CN); Huahua Xiao (Shenzhen, CN); Yong Li (Shenzhen, CN); Yuxin Wang (Shenzhen, CN)
Assignee: ZTE CORPORATION
H04L5/0048H04B7/0621H04L1/00H04W16/28
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Quick Facts
Patent No.
US 10,735,161
App. No.
16/089,639
Granted
Aug 4, 2020
Kind
B2
Abstract

Disclosed are a channel state information (CSI) based processing method, and a terminal, a base station and a computer storage medium. The method comprises: a terminal acquiring channel measurement process configuration information, wherein at least one CSI process configuration includes configuring M sets of channel state information reference symbols (CSI-RSs) for channel measurement, with M being an integer greater than or equal to 1; and the terminal determining m sets of CSI-RSs for CSI measurement, wherein the m sets of CSI-RSs are a sub-set of the M sets of CSI-RSs, with m being an integer.

Claims (71)

1. A processing method based on channel state information (CSI), comprising:

acquiring, by a terminal, configuration information of a channel measurement process, wherein at least one CSI process configuration comprises M sets of channel state information reference signals (CSI-RSs) for CSI measurement, and M is an integer which is greater than or equal to 1; and

determining, by the terminal, m sets of CSI-RSs for CSI measurement, the m sets of CSI-RSs being a subset of the M sets of CSI-RSs, wherein m is an integer;

wherein the M sets of CSI-RSs comprise at least K 1 kinds of Class-I CSI-RS pilot resources and K 2 kinds of Class-II CSI-RS pilot resources, wherein K 1 ≥1, and K 2 ≥1; and

the method further comprises: determining, by the terminal, a pilot set for CSI measurement according to the K 1 kinds of Class-I CSI-RS pilot resources and the K 2 kinds of Class-II CSI-RS pilot resources, and performing CSI measurement feedback according to pilots in the pilot set.

2. The method of claim 1 , wherein the pilot set comprises one of:

k 1 kinds of Class-I pilots in the K 1 kinds of Class-I CSI-RS pilot resources, k 1 ≤K 1 ;

k 2 kinds of Class-II pilots in the K 2 kinds of Class-II CSI-RS pilot resources, k 2 ≤K 2 ; or

k 1 kinds of Class-I pilots in the K 1 kinds of Class-I CSI-RS pilot resources and k 2 kinds of Class-II pilots in the K 2 kinds of Class-II CSI-RS pilot resources, k 1 ≤K 1 , and k 2 ≤K 2 .

3. The method of claim 1 , wherein determining, by the terminal, the pilots in the pilot set according to at least one of:

a configuration signaling of a base station, the configuration signaling comprising a downlink control information (DCI) signal or radio resource control (RRC) signal;

a time domain sending position of the CSI that needs to be fed back;

a number of processes that need to be reported simultaneously; or

a feedback type which comprises periodic feedback or non-periodic feedback.

4. The method of claim 2 , wherein the terminal determines a value of k 1 according to sending situation of the K 1 kinds of Class-I CSI-RS pilot resources within a time range T.

5. The method of claim 2 , wherein the terminal determines a value of k 2 according to sending situation of the K 2 kinds of Class-II CSI-RS pilot resources within a time range T.

6. The method of claim 2 , wherein the terminal and a base station agree on at least one of k 1 =K 1 or k 2 =K 2 .

7. The method of claim 1 , wherein classification of the Class-I CSI-RS pilot resources and the Class-II CSI-RS pilot resources comprise one of:

way 1: K 1 sets of periodic CSI-RS resources, and K 2 sets of non-periodic CSI-RS resources;

way 2: K 1 sets of CSI-RS resources for physical uplink control channel (PUCCH) feedback, and K 2 sets of CSI-RS resources for physical uplink shared channel (PUSCH) feedback;

way 3: K 1 sets of CSI-RS resources using a Class-I measurement restriction (MR) mode, and K 2 sets of CSI-RS resources using a Class-II MR mode;

way 4: K 1 sets of CSI-RS resources configured with a period T 1 and K 2 sets of CSI-RS resources configured with a period T 2 ;

way 5: K 1 sets of CSI-RS resources configured with a Class-I trigger mode, and K 2 sets of CSI-RS resources configured with a Class-II trigger mode;

way 6; periodic CSI-RS resources of K 1 ports and non-periodic CSI-RS resources of K 2 ports;

way 7: CSI-RS resources of the K 1 ports for the PUCCH feedback and CSI-RS resources of the K 2 ports for the PUSCH feedback;

way 8: CSI-RS resources using the Class-I MR mode and of the K 1 ports, and CSI-RS resources using the Class-II MR mode and of the K 2 ports;

way 9: CSI-RS resources configured with the period T 1 and of the K 1 ports, and CSI-RS resources configured with the period T 2 and of the K 2 ports; or

way 10: CSI-RS resources configured with the Class-I trigger mode and of the K 1 ports, and CSI-RS resources configured with the Class-II trigger mode and of the K 2 ports.

8. The method of claim 7 , wherein performing the CSI measurement feedback according to the pilots in the pilot set comprises:

when the Class-I CSI-RS pilot resources and the Class-II CSI-RS pilot resources are classified according to one of the ways 1-5, feeding back, by the terminal, a CSI-RS resource index (CRI) through log 2(k 1 +k 2 ) bit information, or feeding back, by the terminal, a CRI through log 2 (k 2 ) bit information, or feeding back, by the terminal, a CRI through log 2 (k 1 ) bit information.

9. A processing method based on channel state information (CSI), comprising:

configuring, by a base station, configuration information of a channel measurement process, wherein at least one CSI process configuration comprises M sets of channel state information reference signals (CSI-RSs) for CSI measurement, and M is an integer which is greater than or equal to 1; and

configuring, by the base station, m sets of CSI-RSs for CSI measurement, the m sets of CSI-RSs being a subset of the M sets of CSI-RSs, wherein m is an integer;

wherein the M sets of CSI-RSs comprise at least K 1 kinds of Class-I CSI-RS pilot resources and K 2 kinds of Class-II CSI-RS pilot resources, wherein K 1 ≥1, and K 2 ≥1; and

the method further comprises: configuring, by the base station, a pilot set for CSI measurement according to the K 1 kinds of Class-I CSI-RS pilot resources and the K 2 kinds of Class-II CSI-RS pilot resources.

10. The method of claim 9 , wherein the pilot set comprises one of:

k 1 kinds of Class-I pilots in the K 1 kinds of Class-I CSI-RS pilot resources, k 1 ≤K 1 ;

or k 2 kinds of Class-II pilots in the K 2 kinds of Class-II CSI-RS pilot resources, k 2 ≤K 2 ; or

k 1 kinds of Class-I pilots in the K 1 kinds of Class-I CSI-RS pilot resources and k 2 kinds of Class-II pilots in the K 2 kinds of Class-II CSI-RS pilot resources, k 1 ≤K 1 , and k 2 ≤K 2 .

11. The method of claim 9 , wherein the base station informs a terminal of pilots in the pilot set according to at least one of:

a configuration signaling of the base station, the configuration signaling comprising a downlink control information (DCI) signal or radio resource control (RRC) signal;

a time domain sending position of the CSI that needs to be fed back;

a number of processes that need to be reported simultaneously; or

a feedback type which comprises periodic feedback or non-periodic feedback.

12. The method of claim 9 , wherein classification of the Class-I CSI-RS pilot resources and the Class-II CSI-RS pilot resources comprises one of:

way 1: K 1 sets of periodic CSI-RS resources, and K 2 sets of non-periodic CSI-RS resources;

way 2: K 1 sets of CSI-RS resources for physical uplink control channel (PUCCH) feedback, and K 2 sets of CSI-RS resources for physical uplink shared channel (PUSCH) feedback;

way 3: K1 sets of CSI-RS resources using a Class-I measurement restriction (MR) mode, and K 2 sets of CSI-RS resources using a Class-II MR mode;

way 4: K 1 sets of CSI-RS resources configured with a period T 1 and K 2 sets of CSI-RS resources configured with a period T 2 ;

way 5: K 1 sets of CSI-RS resources configured with a Class-I trigger mode, and K 2 sets of CSI-RS resources configured with a Class-II trigger mode;

way 6; periodic CSI-RS resources of K 1 ports and non-periodic CSI-RS resources of K 2 ports;

way 7: CSI-RS resources of the K 1 ports for the PUCCH feedback and CSI-RS resources of the K 2 ports for the PUSCH feedback;

way 8: CSI-RS resources using the Class-I MR mode and of the K 1 ports, and CSI-RS resources using the Class-II MR mode and of the K 2 ports;

way 9: CSI-RS resources configured with the period T 1 and of the K 1 ports, and CSI-RS resources configured with the period T 2 and of the K 2 ports; or

way 10: CSI-RS resources configured with the Class-I trigger mode and of the K 1 ports, and CSI-RS resources configured with the Class-II trigger mode and of the K 2 ports.

13. A terminal, comprising:

a first communication interface, configured to acquire configuration information of a channel measurement process, wherein at least one channel state information (CSI) process configuration comprises M sets of channel state information reference signals (CSI-RSs) for CSI measurement; and M is an integer which is greater than or equal to 1; and

a first processor, configured to determine m sets of CSI-RSs for CSI measurement; the m sets of CSI-RSs being a subset of the M sets of CSI-RSs, wherein m is an integer;

wherein the M sets of CSI-RSs comprise at least K 1 kinds of Class-I CSI-RS pilot resources and K 2 kinds of Class-II CSI-RS pilot resources, wherein K 1 ≥1, and K 2 ≥1; and

the first processor is further configured to determine a pilot set for CSI measurement according to the K 1 kinds of Class-I CSI-RS pilot resources and the K 2 kinds of Class-II CSI-RS pilot resources, and perform CSI measurement feedback through the first communication interface according to pilots in the pilot set.

14. The terminal of claim 13 , wherein the pilot set comprises one of:

k 1 kinds of Class-I pilots in the K 1 kinds of Class-I CSI-RS pilot resources, k 1 ≤K 1 ;

k 2 kinds of Class-II pilots in the K 2 kinds of Class-II CSI-RS pilot resources, k 2 ≤K 2 ; or

k 1 kinds of Class-I pilots in the K 1 kinds of Class-I CSI-RS pilot resources and k 2 kinds of Class-II pilots in the K 2 kinds of Class-II CSI-RS pilot resources, k 1 ≤K 1 , and k 2 ≤K 2 .

15. The terminal of claim 13 , wherein the first processor is further configured to determine the pilots in the pilot set according to at least one of:

a configuration signaling of a base station, the configuration signaling comprising a downlink control information (DCI) signal or radio resource control (RRC) signal;

a time domain sending position of the CSI that needs to be fed back;

a number of processes that need to be reported simultaneously; or

a feedback type which comprises periodic feedback or non-periodic feedback.

16. The terminal of claim 14 , wherein the first processor is further configured to determine a value of k 1 according to sending situation of the K 1 kinds of Class-I CSI-RS pilot resources within a time range T.

17. The terminal of claim 14 , wherein the terminal determines a value of k 2 according to sending situation of the K 2 kinds of Class-II CSI-RS pilot resources within a time range T.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 23, 2018
From: WU, HAO; CHEN, YIJIAN; LI, YUNGOK; LU, ZHAOHUA; CAI, JIANXING; XIAO, HUAHUA; LI, YONG; WANG, YUXIN
To: ZTE CORPORATION
Reel/Frame 047268/0815 →
Priority Claims (1)
CN 2016 1 0200179 · Mar 31, 2016 · national
Continuity (1)
Related Publication 20190132099A1 · May 2, 2019