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Communication method and device
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A communication method and a technology for dispatching information, applied in the field of communication, can solve the problems of high power consumption of terminal equipment, inability to guarantee communication quality and reliability, etc.
Active Publication Date: 2021-08-31
HUAWEI TECH CO LTD
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Problems solved by technology
At present, in an active BWP, the terminal device always performs uplink transmission according to the fixed center frequency and data sampling rate, mainly because when the center frequency or sampling rate changes, the radio frequency (radio frequency, RF) parameter needs to be reconfigured, so There will be a certain amount of RF interruption time, and the quality and reliability of communication cannot be guaranteed
However, this will result in that even if the uplink signal to be sent only needs to occupy a small part of the bandwidth on the activated BWP, the terminal device still uses the fixed center frequency and data sampling rate to transmit the uplink signal. It can be seen that this transmission method exists in the terminal device The problem of large power consumption
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Embodiment 1
[0104] image 3 It is a schematicflowchart of a communication method provided by the embodiment of the present application, and the method may include the following steps.
[0105] In step 301, the network device determines at least one piece of scheduling information, where the at least one piece of scheduling information is used to indicate time-frequency resource information of at least one uplink transmission scheduled within a first scheduling period.
[0106] Wherein, the scheduling information may be carried in the signaling sent by the network device to the terminal device. The signaling in this embodiment of the present application may be one of radio resource control (radio resource control, RRC) signaling, medium access control (medium access control, MAC) control element (control element, CE) or physical layer signaling or more, where the physical layer signaling may be downlink control information (Downlink Control Information, DCI).
[0107] Wherein, the uplin...
Embodiment 2
[0135] Figure 5 It is a schematicflowchart of a communication method provided by the embodiment of the present application, and the method may include the following steps.
[0136] Step 501, the network device sends scheduling information of at least one uplink transmission to the terminal device.
[0137] Wherein, the scheduling information may be carried in the signaling sent by the network device to the terminal device. The signaling may be one or more of RRC signaling, MAC CE or physical layer signaling, where the physical layer signaling may be DCI.
[0138] Step 502, the terminal device receives the scheduling information of the at least one uplink transmission.
[0139] Step 503, the terminal device determines whether at least one of the first interval duration and the second interval duration is greater than or equal to the first duration threshold, or the terminal device determines whether at least one of the first interval duration and the second interval duratio...
Embodiment 3
[0173] like Image 6 As shown, if the network device does not configure a scheduling period for the terminal device, the terminal device may group uplink transmissions according to the received scheduling information, so as to send different groups of uplink transmissions using different transmission parameters. The communication method provided in the embodiment of the present application may also be applied to a terminal device, and the method may include the following steps.
[0174] Step 601, the network device determines at least one piece of first scheduling information, where the at least one piece of first scheduling information is used to indicate time-frequency resource information of M uplink transmissions.
[0175] Wherein, assuming that M uplink transmissions correspond to N uplink transmission groups, M and N are positive integers, and M≥N≥1, then for any uplink transmission group, that is, the first uplink transmission group, the network device can determine the...
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Abstract
The invention discloses a communication method and device, and the method comprises the following steps: terminal equipment receiving scheduling information of at least one piece of first uplink transmission from network equipment, and judging whether the interval duration between the time domain starting position of the first scheduling period and the time domain ending position of the last uplink transmission of the previous scheduling period is greater than or equal to a first duration threshold value, and if so, sending the frequency domainresource information of the uplink transmission scheduled in the first scheduling period to the terminal equipment according to the frequency domainresource information of the uplink transmission scheduled in the first scheduling period. determining transmission parameters of uplink transmission in the first scheduling period, wherein the transmission parameters comprise at least one of the center frequency and the data sampling rate, and therefore the transmission parameters are adopted for uplink transmission in the first scheduling period. According to the method, the terminal device determines the transmission parameter according to the time-frequency resource information of the uplink transmission in the scheduling period, the uplink transmission is prevented from being sent by adopting an activated BWP transmission parameter, and the power consumption of the terminal device can be saved.
Description
technical field [0001] The present application relates to the technical field of communication, and in particular to a communication method and device. Background technique [0002] In the Third Generation Partnership Project (3 rd generation partnership project (3GPP) completed the fifth generation mobile communication technology (the 5 th generation, 5G) new radio (new radio, NR) system, the concept of bandwidth part (bandwidth part, BWP) is introduced. The introduction of BWP is beneficial to control the cost and power consumption of terminal equipment, which is a key technology in 5G. Between the performance, cost and flexibility of terminal equipment, flexible configuration and processing can be performed through the concept of BWP, making the 5G system very flexible in bandwidth configuration. [0003] In the prior art, for a terminal device, a maximum of 4 BWPs can be configured on each carrier used for a cellular link, and only one BWP can be activated on a carr...
Claims
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Application Information
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