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KR-102962150-B1 - POWER CONTROL METHOD AND APPARATUS

KR102962150B1KR 102962150 B1KR102962150 B1KR 102962150B1KR-102962150-B1

Abstract

A power control method and apparatus are provided and relate to the field of communication technology. The method includes the following: A terminal device determines first display information (S202). The first display information is used to display one or more first transmission powers of the terminal device. The first transmission power is a transmission power corresponding to a phase jump of the uplink signal of the terminal device. The terminal device transmits the first display information to a network device (S201). Based on the first display information, the network device (10) determines the power jump point of the terminal device (20), adjusts the power control of the terminal device (20), or adjusts the common channel estimation of the network device (10), thereby avoiding a failure of the common channel estimation of the network device (10) and also improving the quality of the uplink signal of the terminal device (20).

Inventors

  • 장 지안
  • 수에 이판

Assignees

  • 후아웨이 테크놀러지 컴퍼니 리미티드

Dates

Publication Date
20260507
Application Date
20210513
Priority Date
20200622

Claims (15)

  1. As a power control method performed by a communication device, A step of determining the first time window - the first time window is the period during which the network device performs joint channel estimation - and, A step comprising not adjusting the transmission power in the first time window above, Power control method.
  2. In Article 1, Prior to the step of determining the first time window, the method comprises: A step of receiving third display information from the above network device - the third display information is for determining the first time window - and, The method further comprises the step of receiving a fourth indication information from the network device, wherein the fourth indication information indicates that the network device is performing the common channel estimation. Power control method.
  3. In Article 2, The above third display information indicates the maximum quantity L of consecutive slots included in the above first time window, where L is a positive integer greater than or equal to 1, and The step of determining the first time window includes the step of determining the maximum window length of the first time window based on the third display information. Power control method.
  4. In Paragraph 3, The step of determining the first time window above is, The start point of the above first time window is located in the Hth slot, and the Hth slot is the following: The (H-1)th slot is a scheduled downlink slot, and the Hth slot is a scheduled uplink slot. satisfying, Power control method.
  5. In Article 2, The above third indication information is returned in the RRC message, Power control method.
  6. As a power control method performed by a communication device, A step of transmitting third indication information - wherein the third indication information indicates a maximum quantity L of consecutive slots included in a first time window, where L is a positive integer greater than or equal to 1, and the first time window is a period during which a network device performs joint channel estimation - comprising, Power control method.
  7. In Article 6, The start point of the above first time window is located in the Hth slot, and the Hth slot is the following: The (H-1)th slot is a scheduled downlink slot, and the Hth slot is a scheduled uplink slot. satisfying, Power control method.
  8. In Article 6, The above method comprises the step of transmitting a fourth indication information—the fourth indication information indicates that the network device is performing the common channel estimation— Power control method.
  9. In Article 6, The above third indication information is returned in the RRC message, Power control method.
  10. As a communication device, A processor comprising, said processor configured to perform the method of any one of claims 1 to 5, Communication device.
  11. In Article 10, The above communication device includes a terminal device or a chip within the terminal device, Communication device.
  12. As a communication device, A communication unit comprising, said communication unit configured to perform the method of any one of claims 6 to 9, Communication device.
  13. In Article 11, The above communication device includes a network device or a chip within the network device, Communication device.
  14. As a computer-readable storage medium, The computer-readable storage medium stores an instruction, and when the instruction is executed by a communication device, the communication device becomes capable of performing the method according to any one of claims 1 to 5. Computer-readable storage media.
  15. As a computer-readable storage medium, The computer-readable storage medium stores an instruction, and when the instruction is executed by a communication device, the communication device becomes capable of performing the method according to any one of claims 6 to 9. Computer-readable storage media.

Description

Power Control Method and Apparatus The present application claims priority to Chinese patent application No. 202010570506.1, titled "METHOD FOR PROVIDING ASSISTANCE INFORMATION AND UE," filed with the Chinese Intellectual Property Office on June 22, 2020, and Chinese patent application No. 202010923712.6, titled "POWER CONTROL METHOD AND APPARATUS," filed with the Chinese Intellectual Property Office on September 4, 2020, the Chinese applications are incorporated by reference in their entirety in the present application. Technology field This application relates to the field of communication technology, and in particular to power control methods and devices. Since the transmission power of the terminal device is much lower than that of the base station, the signal-to-interference plus noise ratio (SINR) of the uplink signal received from the terminal device by the base station is poor. When the uplink SINR value from the terminal device is lower than the demodulation threshold of the network device, the base station cannot correctly demodulate the uplink information transmitted by the terminal device. To address this problem, the network device performs channel estimation for the terminal device's uplink channel based on the uplink reference signal transmitted from the uplink slot by the terminal device, thereby reconstructing the channel model of the terminal device's uplink channel, eliminating interference on the channel, and improving the signal quality of the uplink signal from the terminal device. Since electromagnetic waves have the characteristic that attenuation increases with higher frequencies, in high-frequency communication systems, the uplink signal transmitted by the terminal device experiences greater attenuation, resulting in poorer uplink coverage. FIG. 1 is a diagram of the system architecture of a communication system according to an embodiment of the present application. FIG. 2 is a schematic flowchart of a power control method according to an embodiment of the present application. FIG. 3a is a schematic flowchart of another power control method according to an embodiment of the present application; FIG. 3b is a schematic flowchart of another power control method according to an embodiment of the present application. FIG. 4 is a schematic flowchart of another power control method according to an embodiment of the present application. FIG. 5 is a schematic diagram of a first time window according to an embodiment of the present application. FIG. 6 is a schematic flowchart of another power control method according to an embodiment of the present application. FIG. 7 is a schematic flowchart of an additional power control method according to an embodiment of the present application. FIG. 8 is a schematic diagram of the structure of a communication device according to an embodiment of the present application. FIG. 9 is a schematic diagram of the hardware structure of a communication device according to an embodiment of the present application. FIG. 10 is a schematic diagram of another hardware structure of a communication device according to an embodiment of the present application. FIG. 11 is a schematic diagram of the hardware structure of a terminal device according to an embodiment of the present application. FIG. 12 is a schematic diagram of the hardware structure of a network device according to an embodiment of the present application. In the description of this application, unless otherwise specified, "/" means "or". For example, A/B may represent A or B. In this specification, the term "and/or" describes only the association between associated objects and implies that there may be three relationships. For example, A and/or B may represent the following three cases: A alone exists, both A and B exist, or B alone exists. Additionally, "at least one" means one or more, and "plural" means two or more. Terms such as "first" and "second" do not limit quantity or order of execution, and terms such as "first" and "second" do not indicate a clear difference. It should be noted that in this application, words such as "yes" or "for example" are used to indicate that an example, illustration, or description is being presented. Any embodiment or design method described as "yes" or "for example" in this application should not be described as being preferred or having more advantages than other embodiments or design methods. To be precise, the use of words such as "yes" or "for example" is intended to present a concept related in a specific way. A power control method provided in an embodiment of the present application is applied to a communication system (100) illustrated in FIG. 1. As illustrated in FIG. 1, the communication system (100) includes a network device (10) and one or more terminal devices (20). The terminal device (20) is configured to transmit uplink data to the network device (10). The network device (10) is configured to receive uplink data from the terminal device (20) and to pe