Communication method and device
AssigneeHuawei Technologies Co., Ltd.
InventorsHan Zhou, Meng Hua
Life of this patent
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Abstract
A communication method includes determining, by a terminal side device in a mobile communications system, N random access preambles on N uplink bandwidth parts (BWPs) in a random access process, where N is an integer greater than or equal to 2, and sending, by the terminal side device, the N random access preambles to a network side device so that the terminal side device can perform random access on a plurality of uplink BWPs. In this method, the network side device or each terminal side device may subsequently perform random access on any one of the N uplink BWPs.
Claims15
A method implemented by a terminal side device, wherein the method comprises:
- determining N random access preambles on N uplink bandwidth parts (BWPs) in a random access process, wherein N is an integer greater than or equal to 2;
- determining a plurality of time resources corresponding to the N uplink BWPs;
- and
- sending, using the time resources, the N random access preambles to a network side device,
- wherein the method further comprises one of:
- identifying that a sum of uplink powers on any two of the N uplink BWPs is greater than a total uplink available to the terminal side device and determining, based on the identifying, that the time resources do not overlap, or
- identifying that a sum of uplink powers on at least two uplink MVPs is less than or equal to a total uplink power available to the terminal side device, and determining, based on the identifying, that the at least two of the time resources overlap.
An apparatus comprising:
- a memory configured to store instructions;
- and
- a processor coupled to the memory, wherein the instructions cause the processor to be configured to:
- determine N random access preambles on N uplink bandwidth parts (BWPs) in a random access process, wherein N is an integer greater than or equal to 2;
- determine a plurality of time resources corresponding to the N uplink BWPs;
- and
- send, using the time resources, the N random access preambles to a network side device,
- wherein the instructions further cause the processor to be configured to perform one of:
- identify that a sum of uplink powers on any two of the N uplink BWPs is greater than a total uplink power available to the terminal side device and determine, based on the identifying, that the time resources do not overlap, or
- identifying that a sum of uplink powers on at least two uplink BWPs is less than or equal to a total uplink power available to the terminal side device, and determining, based on the identifying, that the at least two of the time resources overlap.
An apparatus comprising:
- a memory configured to store instructions;
- and
- a processor coupled to the memory, wherein the instructions cause the processor to be configured to:
- receive P random access preambles on P uplink bandwidth parts (BWPs) from a terminal side device, wherein the P uplink BWPs are part of N uplink BWPs, wherein N is an integer greater than or equal to 2, and wherein P is a positive integer less than or equal to N;
- send P random access responses to the terminal side device based on the P random access preambles, wherein the P random access responses comprise a first random access response;
- and
- receive a first message from the terminal side device and in response to the first random access response,
- wherein the first message requests a contention conflict resolution for random access corresponding to the first random access response
- wherein the instructions further cause the processor to be configured to receive a second message in response to a second random access response from the terminal side device, wherein the second random access response is one of P−1 random access responses other than the first random access response in the P random access responses, and wherein the second message indicates to cancel random access corresponding to the second random access response.
Dependencies are inferred from the claim text.