Method and apparatus for implementing high-frequency communication

• US 9,992,725 B2
• Filed: 11/18/2016
• Issued: 06/05/2018
• Est. Priority Date: 12/15/2014
• 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: Li, Sainan, Huang, Huang
• Primary Examiner(s): Patel, Ajit
• Application Number:
  US15/355,846
• Publication Number:
  US 20170070937A1
• Time in Patent Office: 564 Days
• CPC Class Codes: H04B 7/04 using two or more spaced independent antennas
• CPC Class Codes: H04B 7/0695 using beam selection
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0069 Allocation based on distance or geographical location allocation based on terminal or device properties in general, H04W72/51
• CPC Class Codes: H04W 36/0055 Transmission or use of information for re-establishing the radio link
• CPC Class Codes: H04W 36/0058 Transmission of hand-off measurement information, e.g. measurement reports
• CPC Class Codes: H04W 36/305 Handover due to radio link failure control signalling for hand-off failure H04W36/0079

Abstract

Embodiments of the present application relate to a method and apparatus for implementing high-frequency communication. The method includes: receiving, by a high-frequency base station, a scan request message sent by a base station originally connected to user equipment (UE); sending, by the high-frequency base station, a scan acknowledgment message to the base station originally connected to the UE, receiving, by the high-frequency base station, information about the UE sent by the base station originally connected to the UE; and scanning the UE, by the high-frequency base station, according to the information about the UE, so as to re-establish a high-frequency connection between the UE and the high-frequency base station.

Claims

1. A method for implementing high-frequency communication, comprising:

sending, by an originally connected base station, a scan request message to at least one target to-be-accessed base station when user equipment (UE) served by the originally connected base station is in a coverage hole state;

receiving, by the originally connected base station, acknowledgement scan information sent by the at least one target to-be-accessed base station;

sending, by the originally connected base station, information about the UE to the at least one target to-be-accessed base station, so that the at least one target to-be-accessed base station scans the UE according to the information about the UE, and establishes a high-frequency connection between the UE and one of the at least one target to-be-accessed base station;

detecting, at intervals of a preset period, all beams that can cover a position of the UE;

sending beam information to the UE comprising one or more of a beam identifier, a cell identifier, and an array identifier;

receiving a measurement result of all beams sent by the UE; and

determining an alternative beam according to the measurement result, wherein the alternative beam is a beam that enables a high-frequency connection to be established between the UE and one of the at least one target to-be-accessed base station.

2. The method according to claim 1, wherein the at least one target to-be-accessed base station refers to a base station to which a beam that covers a position of the UE belongs.

3. The method according to claim 1, wherein the coverage hole state comprises at least one of:

a received uplink signal quality of the UE is less than a preset signal quality threshold, a channel quality fed back by the UE is less than a channel quality threshold, that no feedback from the UE is received within a preset time, that a bit error rate of receiving data of the UE reaches a preset bit error rate threshold, or that a received data signal quality of the UE deteriorates into a state in which demodulation cannot be performed.

4. The method according to claim 1, wherein the information about the UE comprises one or more of a UE identifier, a UE scanning period, UE positioning information, or a beam identifier.

5. The method according to claim 1, further comprising:

after the high-frequency connection is established between one of the at least one target to-be-accessed base station and the UE, receiving a feedback message that carries a UE high-frequency connection status, and sending a scan stop message to another base station in the target to-be-accessed base stations, except the base station that establishes the high-frequency connection to the UE.

6. The method according to claim 1, further comprising:

obtaining a current position of the UE at intervals of a preset period and using the current position as a position of the UE.

7. A method for implementing high-frequency communication, comprising:

receiving, by a high-frequency base station, a scan request message sent by a base station originally connected to user equipment (UE);

sending, by the high-frequency base station, a scan acknowledgment message to the base station originally connected to the UE;

sending, by the originally connected base station, information about the UE to the at least one target to-be-accessed base station, so that the at least one target to-be-accessed base station scans the UE according to the information about the UE, and establishes a high-frequency connection between the UE and one of the at least one target to-be-accessed base station;

receiving, by the high-frequency base station, information about the UE sent by the base station originally connected to the UE;

allocating, by the high-frequency base station, a time-frequency resource to the UE according to a current load of the high-frequency base station;

determining, by the high-frequency base station, a position of the UE according to the information about the UE;

receiving a measurement result of all beams sent by the UE; and

projecting, by the high-frequency base station, a beam to the position of the UE according to the time-frequency resource and the position of the UE, so that the UE pairs an uplink beam and a downlink beam and establishes a high-frequency connection between the high-frequency base station and the UE.

8. The method according to claim 7, further comprising:

sending, by the high-frequency base station, to the base station originally connected to the UE, a connection response message that carries a high-frequency link connection status.

9. The method according to claim 7, wherein the information about the UE comprises one or more of a UE identifier, a UE scanning period, UE positioning information, or a beam identifier.

10. A base station, comprising:

a transmitter configured to send a scan request message to at least one target to-be-accessed base station to which a beam that can cover a position of user equipment (UE) belongs; and

a receiver configured to receive acknowledgement scan information sent by the at least one target to-be-accessed base station;

the transmitter is further configured to;

send information about the UE to the at least one target to-be-accessed base, so that the at least one target to-be-accessed base station scans the UE according to the information about the UE;

establish a high-frequency connection between the UE and one base station of the at least one of target to-be-accessed base station;

the processor is further configured to detect, at intervals of a preset period, all beams that cover the position of the UE;

the transmitter is further configured to send beam information to the UE, so that the UE measures the beams according to the beam information, wherein the beam information comprises a beam identifier, a cell identifier, and an array identifier;

the receiver is configured to receive a measurement result of all beams sent by the UE; and

the processor is further configured to determine an alternative beam according to the measurement result, wherein the alternative beam is a beam that enables a high-frequency connection to be established between the UE and the one base station of the at least one target to-be-accessed base station.

11. The base station according to claim 10, wherein the at least one target to-be-accessed base station refers to a base station to which a beam that covers a position of the UE belongs.

12. The base station according to claim 10, wherein the information about the UE comprises one or more of a UE identifier, a UE scanning period, UE positioning information, or a beam identifier.

13. The base station according to claim 10, wherein:

the transmitter is further configured to, after the receiver receives a connection response message that carries a high-frequency connection status, send a scan stop request message to another base station in the at least one target to-be-accessed base station, except the base station that establishes the high-frequency connection to the UE.

14. The base station according to claim 11, wherein:

the processor is further configured to obtain a current position of the UE at intervals of a preset period, and use the current position as a position of the UE.

15. A high-frequency base station, comprising:

a receiver configured to receive a scan request message sent by a base station originally connected to user equipment (UE); and

a transmitter configured to send a scan acknowledgment message to the base station originally connected to the UE;

wherein

the receiver is further configured to receive information about the UE sent by the base station originally connected to the UE;

a processor coupled to the receiver and the transmitter and configured to scan the UE according to the information about the UE, establishing a high-frequency connection between the UE and the high-frequency base station;

allocate a time-frequency resource to the UE according to a current load;

determine a position of the UE according to the information about the UE; and

receiving a measurement result of all beams sent by the UE; and

project a beam to the position of the UE according to the time-frequency resource and the position of the UE, so that the UE pairs an uplink beam and a downlink beam and.

16. The base station according to claim 15, wherein the transmitter is further configured to:

send, to the base station originally connected to the UE, a connection response message that carries a high-frequency link connection status.

17. The method according to claim 15, wherein the information about the UE comprises one or more of a UE identifier, a UE scanning period, UE positioning information, or a beam identifier.