KR-102962868-B1 - Communication method and device

KR102962868B1KR 102962868 B1KR102962868 B1KR 102962868B1KR-102962868-B1

Abstract

The present application provides a communication method and apparatus for solving a problem in which a transmission error occurs when a network device schedules some uplink channels in a random access procedure when the network device has not determined the type of terminal device. The present method comprises the steps of: transmitting configuration information of a first initial uplink BWP to a first terminal device; and transmitting configuration information of a second initial uplink BWP to a second terminal device, wherein the first terminal device is a terminal device of a first type and the second terminal device is a terminal device of a second type; transmitting first information to the first terminal device and/or transmitting first information to the second terminal device, wherein the first frequency domain resource represented by the first information is within the frequency domain range of the first initial uplink BWP and the frequency domain resource is used by the first terminal device to transmit Msg3; and furthermore, the second frequency domain resource represented by the first information is within the frequency domain range of the second initial uplink BWP and the second frequency domain resource is used by the second terminal device to transmit Msg3.

Inventors

호우 하이롱
진 제
루오 지후
큐 웨이린

Assignees

후아웨이 테크놀러지 컴퍼니 리미티드

Dates

Publication Date: 20260508
Application Date: 20220419
Priority Date: 20210510

Claims (20)

As a method of communication, A step of transmitting configuration information of a first initial uplink bandwidth part (BWP: bandwidth part) to a first terminal device; A step of transmitting configuration information of the second initial uplink BWP to the second terminal device; and A step of transmitting a first information to the first terminal device and/or a step of transmitting the first information to the second terminal device Includes, The first frequency domain resource indicated by the first information is within the frequency domain range of the first initial uplink BWP, and the first frequency domain resource is used by the first terminal device to transmit Msg3; The second frequency domain resource indicated by the first information is within the frequency domain range of the second initial uplink BWP, and the second frequency domain resource is used by the second terminal device to transmit Msg3; The first terminal device is a terminal device of the first type, and the second terminal device is a terminal device of the second type, and The starting location of the above second frequency domain resource is, Determined based on the starting position of the first initial uplink BWP above; or Determined based on the starting position of the second initial uplink BWP and the first offset value, wherein the first offset value is a frequency domain offset value between the starting position of the first initial uplink BWP and the starting position of the second initial uplink BWP. Communication method.
In paragraph 1, The above first information is a communication method, which is a Resource Indication Value (RIV) of a frequency domain resource.
In paragraph 1, After the step of transmitting the first information to the first terminal device, the step of receiving the Msg3 from the first terminal device in the first frequency domain resource; and/or After the step of transmitting the first information to the second terminal device, the step of receiving the Msg3 from the second terminal device in the second frequency domain resource. A communication method that further includes
In paragraph 1, For the second terminal device, a step of determining the first information based on the starting position and length of the first initial uplink BWP and the second frequency domain resource; or A step of determining the first information based on the second initial uplink BWP and the start position and length of the first frequency domain resource for the first terminal device. A communication method that further includes
In paragraph 4, A communication method in which the frequency domain range of the first frequency domain resource is the same as the frequency domain range of the second frequency domain resource.
In paragraph 5, A communication method in which the starting position of the first initial uplink BWP is the same as the starting position of the second initial uplink BWP.
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In paragraph 1, A communication method in which the frequency domain range of the first frequency domain resource is different from the frequency domain range of the second frequency domain resource.
In paragraph 5, A communication method wherein the first frequency domain resource and/or the second frequency domain resource belong to a first frequency domain resource set, and the RIV of any frequency domain resource within the first frequency domain resource set for the first terminal device is the same as the RIV of any frequency domain resource for the second terminal device.
In paragraph 1, A communication method in which the first information is transmitted by being included in scrambled downlink control information (DCI) or random access response uplink grant (RAR UL grant) using a temporary cell radio network temporary identifier (TC-RNTI).
As a method of communication, The above method can be applied to a first terminal device or a chip within the first terminal device, and The above method is, A step of receiving first information from a network device - said first information represents a first frequency domain resource for transmitting a third message Msg3 in a random access procedure - ; and A step of determining the first frequency domain resource based on the first information and the second initial uplink bandwidth part (BWP) above - the first frequency domain resource is within the frequency domain range of the first initial uplink BWP, the first initial uplink BWP is the initial uplink BWP of the first terminal device, and the second initial uplink BWP is the initial uplink BWP of the second terminal device - Includes, Based on the first information and the second initial uplink BWP, the step of determining the first frequency domain resource is Based on the first information, the first initial uplink BWP, and the first offset value, the method includes determining the starting position of the first frequency domain resource and the length of the first frequency domain resource, wherein the first offset value is a frequency domain offset value between the starting position of the first initial uplink BWP and the starting position of the second initial uplink BWP. Communication method.
In Paragraph 11, A communication method in which the first frequency domain resource is within the frequency domain range of the second initial uplink BWP.
In Paragraph 11, Based on the first information and the second initial uplink BWP, the step of determining the first frequency domain resource is The method comprises determining the starting position of the first frequency domain resource and the length of the first frequency domain resource based on the first information and the size of the second initial uplink BWP. Communication method.
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In Paragraph 11, The above first information is a communication method, which is a Resource Indication Value (RIV) of a frequency domain resource.
In Paragraph 11, A communication method in which the first information is transmitted by being included in scrambled downlink control information (DCI) or random access response uplink grant (RAR UL grant) using a temporary cell radio network temporary identifier (TC-RNTI).
As a communication device, A communication module configured to communicate with a terminal device; and It includes a processing module, wherein the processing module is, Through the above communication module, configuration information of a first initial uplink bandwidth part (BWP: bandwidth part) is transmitted to a first terminal device; Through the above communication module, configuration information of the second initial uplink BWP is transmitted to the second terminal device; and also It is configured to transmit/transmit first information to the first terminal device through the communication module or to transmit the first information to the second terminal device through the communication module, and wherein, The first frequency domain resource indicated by the first information is within the frequency domain range of the first initial uplink BWP, and the first frequency domain resource is used by the first terminal device to transmit Msg3; The second frequency domain resource indicated by the first information is within the frequency domain range of the second initial uplink BWP, and the second frequency domain resource is used by the second terminal device to transmit Msg3; The first terminal device is a terminal device of the first type, and the second terminal device is a terminal device of the second type, and The starting location of the above second frequency domain resource is, Determined based on the starting position of the first initial uplink BWP above; or Determined based on the starting position of the second initial uplink BWP and the first offset value, wherein the first offset value is a frequency domain offset value between the starting position of the first initial uplink BWP and the starting position of the second initial uplink BWP. Communication device.
In Paragraph 17, The above first information is a communication device, which is a Resource Indication Value (RIV) of a frequency domain resource.
In Paragraph 17, The above processing module is, After transmitting the first information to the first terminal device through the communication module, receiving the Msg3 from the first terminal device in the first frequency domain resource through the communication module; After transmitting the first information to the second terminal device through the communication module, the communication module is additionally configured to receive the Msg3 from the second terminal device in the second frequency domain resource through the communication module. Communication device.
In Paragraph 17, The above processing module is, For the second terminal device, the first information is determined based on the starting position and length of the first initial uplink BWP and the second frequency domain resource; or For the first terminal device, the first information is additionally configured to be determined based on the second initial uplink BWP and the start position and length of the first frequency domain resource. Communication device.

Description

Communication method and device (Refer to related patent applications) This application claims priority to Chinese patent application No. 202110506605.8, titled "Communication method and device," filed with the Chinese Intellectual Property Office on May 10, 2021, the entire contents of which are incorporated herein by reference. (Technology field) This application relates to the field of communication technology, in particular, to communication methods and devices. In the initial access phase, the network device configures the common bandwidth part (BWP) of the cell. The bandwidth part includes the initial downlink BWP (initial DL BWP) and the initial uplink BWP (initial UL BWP). In the random access procedure, some uplink channel transmission parameters are configured within the initial uplink BWP. For example, in the random access procedure, the transmission of the third message (Msg3) is performed in the initial uplink BWP. The network device can schedule some uplink channels in the random access procedure using the random access response uplink grant (RAR UL grant). The maximum bandwidth of the initial uplink BWP cannot exceed the maximum bandwidth supported by the terminal device, and the frequency domain range of the initial uplink BWP of a legacy terminal device differs from the frequency domain range of the initial uplink BWP of a terminal device with lower performance than that of the legacy terminal device. Therefore, if the network device has not determined the type of terminal device, there is a possibility of transmission errors when the network device schedules some uplink channels during the random access procedure. The present application provides a communication method and apparatus for solving a problem in which a transmission error occurs when a network device schedules some uplink channels in a random access procedure when the network device does not determine or acquire the type of terminal device. According to a first aspect, the present application provides a communication method. The method may be performed by a network device or by a chip or circuit. The present method comprises the steps of: transmitting configuration information of a first initial uplink BWP to a first terminal device; and transmitting configuration information of a second initial uplink BWP to a second terminal device - wherein the first terminal device is a terminal device of a first type and the second terminal device is a terminal device of a second type -; transmitting first information to the first terminal device and/or transmitting first information to the second terminal device - wherein the first frequency domain resource represented by the first information is within the frequency domain range of the first initial uplink BWP and the first frequency domain resource is used by the first terminal device to transmit Msg3, and furthermore, the second frequency domain resource represented by the first information is within the frequency domain range of the second initial uplink BWP and the second frequency domain resource is used by the second terminal device to transmit Msg3 - In this embodiment of the present application, when scheduling Msg3, the network device may transmit the same scheduling information (i.e., the first information) to two types of terminal devices. The scheduling information may indicate a first terminal device to perform the transmission of Msg3 within the range of the first terminal device's initial uplink BWP (i.e., the first initial uplink BWP), and the scheduling information may indicate a second terminal device to perform the transmission of Msg3 within the range of the second terminal device's initial uplink BWP (i.e., the second initial uplink BWP). In the manner described above, if the network device has not determined the type of terminal device, the network device may perform the transmission of Msg3 by scheduling terminal devices within different BWP ranges using the same indication value to avoid transmission errors that occur when the scheduling resource for Msg3 is not within the range of the terminal device's initial uplink BWP. In a possible design, the first information is the Resource Indication Value (RIV). The Resource Indication Value is the resource indication value of a frequency domain resource. According to the aforementioned design, a network device can indicate the same RIV for two types of terminal devices. In a possible design, after the first information is transmitted to the first terminal device, the Msg3 from the first terminal device is received in the first frequency domain resource; or after the first information is transmitted to the second terminal device, the Msg3 from the second terminal device is received in the second frequency domain resource. According to the above design, the network device can improve the transmission success rate of Msg3 by using the same information (the first information) to represent the frequency domain resources of t