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US 10,230,445 B2Granted
Data transmission method, data reception method, data transmission device and data reception device
AssigneeChina Academy of Telecommunications Technology
InventorsShaoli Kang, Bin Ren, Yang Song
Life of this patent
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Abstract
A data transmission method includes steps of: acquiring, by a network side, a current data transmission rule, the current data transmission rule including a mapping relationship between currently-scheduled K UEs and data layers on N transmission resources corresponding to a selected encoding matrix, one UE at least occupying one data layer; and transmitting, by the network side, data to the K UEs in accordance with the current data transmission rule.
Claims13
A data transmission method, comprising steps of:
- acquiring, by a network side, a mapping relationship between currently-scheduled K User Equipments (UEs) and data layers on at least log2 (K+1) transmission resources corresponding to a selected encoding matrix, where one UE at least occupying one data layer;
- and
- transmitting, by the network side, data to the K UEs in accordance with the mapping relationship between the currently-scheduled K UEs and the data layers on the at least log2(K+1) transmission resources corresponding to the selected encoding matrix;
- wherein, prior to the step of acquiring a mapping relationship between currently-scheduled K UEs and data layers on at least log2(K+1) transmission resources corresponding to a selected encoding matrix, the method further comprises
- selecting, in accordance with a plurality of values of n corresponding to a plurality of predetermined to-be-selected encoding matrices, a set of values of n which each meets a condition K≤2n−1;
- selecting a set of the to-be-selected encoding matrices available for the K UEs from the plurality of to-be-selected encoding matrices in accordance with the set of values of n;
- selecting a random value from the set of values of n as the number N of the transmission resources which are capable of being currently multiplexed by the K UEs, the random value being not greater than the number of system-available frequency-domain resources and the corresponding 2n−1 predetermined data layers being capable of meeting a load requirement of the K UEs;
- and
- selecting a to-be-selected encoding matrix corresponding to a value of N from the set of the to-be-selected encoding matrices as the encoding matrix used when the N transmission resources are multiplexed by the 2N−1 data layers;
- wherein n represents the number of the transmission resources corresponding to a to-be-selected encoding matrix that is the encoding matrix used when the N transmission resources are multiplexed by 2n−1 data layers, and wherein N being greater than or equal to log2(K+1).
7 more elements
A data reception method, comprising steps of:
- acquiring, by a User Equipment (UE), a mapping relationship between currently-scheduled K UEs and data layers on at least log2 (K+1) transmission resources corresponding to a selected encoding matrix, where one UE at least occupying one data layer;
- and
- receiving, by the UE, feedback data from a network side, the feedback data being fed back by the network side after receiving data transmitted from the UE in accordance with the mapping relationship between the currently-scheduled K UEs and the data layers on the at least log2 (K+1) transmission resources corresponding to the selected encoding matrix;
- wherein, prior to the step of acquiring a mapping relationship between currently-scheduled K UEs and data layers on at least log2 (K+1) transmission resources corresponding to a selected encoding matrix, the method further comprises:
- selecting, in accordance with a plurality of values of n corresponding to a plurality of predetermined to-be-selected encoding matrices, a set of values of n which each meets a condition K≤2n−1;
- selecting a set of the to-be-selected encoding matrices available for the K UEs from the plurality of to-be-selected encoding matrices in accordance with the set of values of n;
- selecting a random value from the set of values of n as the number N of the transmission resources which are capable of being currently multiplexed by the K UEs, the random value being not greater than the number of system-available frequency-domain resources and the corresponding 2n−1 predetermined data layers being capable of meeting a load requirement of the K UEs;
- and
- selecting a to-be-selected encoding matrix corresponding to a value of N from the set of the to-be-selected encoding matrices as the encoding matrix used when the N transmission resources are multiplexed by the 2N−1 data layers;
- wherein n represents the number of the transmission resources corresponding to a to-be-selected encoding matrix that is the encoding matrix used when the N transmission resources are multiplexed by 2n−1 data layers, and wherein N being greater than or equal to log2(K+1).
7 more elements
A network side device, comprising:
- a processing unit configured to acquire a mapping relationship between currently-scheduled K User Equipments (UEs) and data layers on at least log2 (K+1) transmission resources corresponding to a selected encoding matrix, where one UE at least occupying one data layer;
- and
- a transmission unit configured to transmit data to the K UEs in accordance with the mapping relationship between the currently-scheduled K UEs and the data layers on the at least log2 (K+1) transmission resources corresponding to the selected encoding matrix;
- wherein the network side device further comprises a selection unit configured to, prior to acquiring, by the processing unit, a mapping relationship between currently-scheduled K User Equipments (UEs) and data layers on at least log2(K+1) transmission resources corresponding to a selected encoding matrix,
- select, in accordance with a plurality of values of n corresponding to a plurality of predetermined to-be-selected encoding matrices, a set of values of n which each meets a condition K≤2n−1;
- select a set of the to-be-selected encoding matrices available for the K UEs from the plurality of to-be-selected encoding matrices in accordance with the set of values of n;
- select a random value from the set of values of n as the number N of the transmission resources which are capable of being currently multiplexed by the K UEs, the random value being not greater than the number of system-available frequency-domain resources and the corresponding 2n−1 predetermined data layers being capable of meeting a load requirement of the K UEs;
- and
- select a to-be-selected encoding matrix corresponding to a value of N from the set of the to-be-selected encoding matrices as the encoding matrix used when the N transmission resources are multiplexed by the 2N−1 data layers;
- wherein n represents the number of the transmission resources corresponding to a to-be-selected encoding matrix that is the encoding matrix used when the N transmission resources are multiplexed by 2n−1 data layers, and wherein N being greater than or equal to log2(K+1).
7 more elements
A User Equipment (UE), comprising:
- a processing unit configured to acquire a mapping relationship between currently-scheduled K UEs and data layers on at least log2 (K+1) transmission resources corresponding to a selected encoding matrix, where one UE at least occupying one data layer;
- and
- a reception unit configured to receive feedback data from a network side, the feedback data being fed back by the network side after receiving data transmitted from the UE in accordance with the mapping relationship between the currently-scheduled K UEs and the data layers on the at least log2 (K+1) transmission resources corresponding to the selected encoding matrix;
- wherein the UE further comprises a selection unit configured to, prior to acquiring a mapping relationship between currently-scheduled K UEs and data layers on at least log2 (K+1) transmission resources corresponding to a selected encoding matrix, by the processing unit,
- select, in accordance with a plurality of values of n corresponding to a plurality of predetermined to-be-selected encoding matrices, a set of values of n which each meets a condition K≤2n−1;
- select a set of the to-be-selected encoding matrices available for the K UEs from the plurality of to-be-selected encoding matrices in accordance with the set of values of n;
- select a random value from the set of values of n as the number N of the transmission resources which are capable of being currently multiplexed by the K UEs, the random value being not greater than the number of system-available frequency-domain resources and the corresponding 2n−1 predetermined data layers being capable of meeting a load requirement of the K UEs;
- and
- select a to-be-selected encoding matrix corresponding to a value of N from the set of the to-be-selected encoding matrices as the encoding matrix used when the N transmission resources are multiplexed by the 2N−1 data layers;
- wherein n represents the number of the transmission resources corresponding to a to-be-selected encoding matrix that is the encoding matrix used when the N transmission resources are multiplexed by 2n−1 data layers, and wherein N being greater than or equal to log2(K+1).
7 more elements
Dependencies are inferred from the claim text.