Method and device for transmitting measurement pilot signal

• US 10,972,245 B2
• Filed: 06/26/2019
• Issued: 04/06/2021
• Est. Priority Date: 12/28/2016
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Zhang, Leiming, Liu, Yifan, Lei, Ming
• Primary Examiner(s): Lee, Chi Ho A
• Application Number:
  US16/453,562
• Publication Number:
  US 20190319763A1
• Time in Patent Office: 650 Days
• CPC Class Codes: H04L 5/0005 Time-frequency
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method for measurement pilot signal is provided. The method includes: determining, by a first device from a plurality of subbands included in system bandwidth, a first subband that is used to transmit a measurement pilot signal, where one subband includes at least one physical resource block; sending, by the first device, identifier information of the first subband to a second device; and transmitting the measurement pilot signal in at least one physical resource block corresponding to the first subband to the second device.

Claims

1. A method comprising:

determining, by a first device from a plurality of subbands comprised in system bandwidth, a first subband set, wherein the first subband set comprises a plurality of consecutive subbands, a quantity of physical resource blocks (PRBs) comprised in a subband of the plurality of consecutive subbands is an integral multiple of a quantity of PRBs comprised in a PRB bundle and the PRB bundle is used for joint channel estimation by a second device;

sending, by the first device, identifier information of the first subband to the second device; and

transmitting, by the first device, a measurement pilot signal in the PRBs corresponding to the first subband set to the second device.

2. The method according to claim 1, wherein

the identifier information of the first subband set is generated based on identifier information of a start subband in the plurality of consecutive subbands and a quantity of the consecutive subbands.

3. The method according to claim 1, wherein the first device is a base station, the second device is user equipment, and the measurement pilot signal is a downlink measurement pilot signal.

4. The method according to claim 1, wherein the first device is user equipment, the second device is a base station, and the measurement pilot signal is an uplink measurement pilot signal.

5. A method comprising:

receiving, by a second device, identifier information of a first subband set from a first device, wherein the first subband set comprises a plurality of consecutive subbands, a quantity of physical resource blocks (PRBs) comprised in a subband of the plurality of consecutive subbands is an integral multiple of a quantity of PRBs comprised in a PRB bundle, and the PRB bundle is used for joint channel estimation by the second device;

determining, by the second device based on the identifier information of the first subband set, PRBs corresponding to the first subband set; and

receiving, by the second device on the determined PRBs, a measurement pilot signal from the first device.

6. The method according to claim 5, wherein

the identifier information of the first subband set is generated based on identifier information of a start subband in the plurality of consecutive subbands and a quantity of the consecutive subbands.

7. The method according to claim 5, wherein the first device is a base station, the second device is user equipment, and the measurement pilot signal is a downlink measurement pilot signal.

8. The method according to claim 5, wherein the first device is user equipment, the second device is a base station, and the measurement pilot signal is an uplink measurement pilot signal.

9. An apparatus comprising:

a transceiver, configured to receive identifier information of a first subband set from a first device, wherein the first subband set comprises a plurality of consecutive subbands, a quantity of physical resource blocks (PRBs) comprised in a subband of the plurality of consecutive subbands is an integral multiple of a quantity of PRBs comprised in a PRB bundle, and the PRB bundle is used for joint channel estimation by the second device; and

at least one processor, configured to determine the second device based on the identifier information of the first subband set, PRBs corresponding to the first subband set,

wherein the transceiver is further configured to receive, on the determined PRBs, a measurement pilot signal from the first device.

10. The apparatus according to claim 9, wherein the identifier information of the first subband set is generated based on identifier information of a start subband in the plurality of consecutive subbands and a quantity of the consecutive subbands.

11. The apparatus according to claim 9, wherein the first device is a base station, the second device is user equipment, and the measurement pilot signal is a downlink measurement pilot signal.

12. The apparatus according to claim 9, wherein the first device is user equipment, the second device is a base station, and the measurement pilot signal is an uplink measurement pilot signal.