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Communication method and device

A communication method and communication device technology, applied in the field of communication, capable of solving problems such as resource conflicts, simultaneous transmission of PUCCH and PUSCH not supported, etc.

Active Publication Date: 2020-10-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current 5G communication system does not support simultaneous transmission of PUCCH and PUSCH on the same carrier. However, in actual scenarios, resources occupied by PUCCH and PUSCH may conflict.

Method used

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  • Communication method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] image 3 It is a schematic flow chart corresponding to the communication method provided in Embodiment 1 of the present application, as shown in image 3 shown, including:

[0087] In step 301, the terminal device triggers an SR.

[0088] For example, when there is new data to be sent in the terminal device and all logical channels have no data to be sent, or a logical channel with a higher priority has data to be sent, the terminal device can trigger a BSR, and then can trigger an SR corresponding to the BSR. For details, please refer to the related description about SR triggering.

[0089] Step 302, if the terminal device determines that the PUCCH carrying the SR and the PUSCH carrying the first data packet overlap in the time domain of the first uplink resource, including partial overlap and complete overlap, obtain the PUSCH on the first uplink resource processing status. Wherein, the PUSCH resource may be a dynamically scheduled resource or a pre-configured sch...

Embodiment 2

[0118] Figure 5 It is a schematic flow diagram corresponding to the communication method provided in Embodiment 2 of the present application, as shown in Figure 5 shown, including:

[0119] In step 501, the terminal device triggers an SR.

[0120] Step 502, if the terminal device determines that the PUCCH carrying the SR and the PUSCH overlap in the time domain of the first uplink resource, then according to the PUSCH resource and the resource requirements of the logic channel triggering the SR, send the PUCCH or PUSCH. Wherein, the PUSCH resource may be a dynamically scheduled resource or a pre-configured scheduled resource, which is not specifically limited.

[0121] Using the above method, when the PUCCH carrying SR and PUSCH overlap in the time domain of the first uplink resource, the terminal device considers the resource requirements of the PUSCH resource and the logical channel triggering SR, and can base on the PUSCH resource and trigger SR One of the PUCCH and t...

Embodiment 3

[0129] In the third embodiment, some solutions are provided mainly for the scenario where the first data packet in the PUSCH (that is, the data packet to be transmitted on the resource indicated by the uplink grant corresponding to the PUSCH) cannot be effectively transmitted, and is used to give the second An opportunity to retransmit a data packet, so as to avoid the loss of the first data packet or cause a large loss to its service performance. Wherein, the inability to effectively transmit the first data packet in the PUSCH may include that the first data packet in the PUSCH has not been sent or has not been sent completely.

[0130] In this embodiment of the present application, there may be various scenarios where the first data packet in the PUSCH cannot be effectively transmitted. For example, when the PUCCH carrying the SR and the PUSCH overlap in the time domain of the first uplink resource, if the terminal When the PUCCH is sent on an uplink resource, the first data...

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Abstract

The application relates to the technical field of communication and discloses a communication method and device. The method comprises the following steps: triggering a scheduling request (SR) by a terminal device; if the PUCCH for bearing the SR and the PUSCH for bearing a first data packet are overlapped on the time domain of a first uplink resource, acquiring the processing state of the PUSCH on the first uplink resource; according to the processing state of the PUSCH on the first uplink resource, sending one of the PUCCH and the PUSCH on the overlapped time domain resources according to the processing state of the PUSCH on the first uplink resource. Using the above method, when the PUCCH and the for bearing an SR are overlapped on a time domain of the first uplink resource, the terminal device considers the processing state of the PUSCH on the first uplink resource, and can determine to send one of the PUCCH and the PUSCH on the overlapped time domain resource based on the processing state of the PUSCH on the first uplink resource, thereby ensuring the efficiency of the uplink information sent on the overlapped time domain resource.

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 fifth generation (5th generation, 5G) communication system, a physical uplink control channel (physical uplink control channel, PUCCH) or a physical uplink shared channel (physical uplink shared channel, PUSCH) can be transmitted from a transmission time unit (for example, a time slot ( Any symbol in Slot)) starts to be transmitted, and the transmission time length is not fixed, for example, the transmission time length may be 1 to 14 symbols. [0003] The current 5G communication system does not support simultaneous transmission of PUCCH and PUSCH on the same carrier. However, in actual scenarios, resources occupied by PUCCH and PUSCH may conflict. For example, since the 5G communication system can support a variety of service types, such as ultra-reliable and low-latency communication (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/10H04W72/12
CPCH04W72/0446H04W72/56H04W72/569H04W72/21H04W72/1268H04L1/1822H04L1/1887H04L1/1896H04L1/189H04L1/20H04W72/23H04L1/1812H04W80/02H04W72/566
Inventor 娄崇范强黄曲芳徐小英
Owner HUAWEI TECH CO LTD
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