Method, device and system for determining transmission parameters of data sharing channel

Inventors: Jun Xu (Guangdong, CN); Bo Dai (Guangdong, CN); Zewei Chen (Guangdong, CN); Jin Xu (Guangdong, CN); Xiaomei Xu (Guangdong, CN); Huiying Fang (Guangdong, CN)

Assignee: ZTE CORPORATION

H04L1/0025 H04L1/0003 H04L1/0007 H04L1/1819 H04L27/0008 H04L27/36 H04W4/80 H04W72/042

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Quick Facts

Patent No.: US 10,938,508
App. No.: 16/075,582
Granted: Mar 2, 2021
Kind: B2

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Abstract

A method, a device and a system of determining a transmission parameter of a data shared channel are provided. The method includes: receiving downlink control information including a field configured to determine a transmission parameter of a data shared channel; and determining the transmission parameter according to the field.

Claims (102)

1. A method of determining a transmission parameter of a data shared channel, comprising:

receiving downlink control information, the downlink control information comprising a field configured to determine a transmission parameter of a data shared channel, the transmission parameter comprising at least one of a modulation mode, a transmission block size (TBS), a sequence length upon rate matching, the field comprising at least one of a modulation and coding scheme (MCS) indicator field, a resource allocation field and a repetition number indicator field, the MCS indicator field being configured to indicate a modulation and coding scheme, the resource allocation field being configured to indicate information of resource allocation of a transmission block (TB) based on a resource unit (RU), the repetition number indicator field being configured to indicate a number of repetitive transmission; and

determining the transmission parameter according to the field,

wherein determining the transmission parameter according to the field comprises: determining the TBS according to the field and a preset TBS table;

wherein the method further comprises: before determining the TBS according to the field and a preset TBS table, determining the preset TBS table by:

using a first TBS table as the preset TBS table under a first condition, and using a second TBS table as the preset TBS table under a second condition, wherein the first TBS table and the second TBS table are different TBS tables,

wherein the first condition and the second condition comprise at least one of:

the first condition being uplink, single-tone frequency multiple access, while the second condition being uplink, multi-tone frequency multiple access;

the first condition being uplink, single-tone frequency multiple access, while the second condition being downlink, OFDMA multiple access;

the first condition being an in-band operation mode, while the second condition being a stand-alone operation mode or a guard-band operation mode;

the first condition being uplink, multi-tone frequency multiple access, while the second condition being downlink, OFDMA multiple access;

wherein the first TBS table and the second TBS table being different TBS tables comprises at least one of the following cases where:

a set of TBS index supported by the first TBS table is different from a set of TBS index supported by the second TBS table, and a set of RU numbers supported by the first TBS table is the same as a set of RU numbers supported by the second TBS table;

all TBS supported by the first TBS table is a subset of all TBS supported by the second TBS table.

2. The method according to claim 1 , wherein in the case where the field comprises the MCS indicator field and the resource allocation field, determining the transmission parameter according to the field comprises:

determining at least one of the modulation mode and the TBS according to the MCS indicator field and the resource allocation field.

3. The method according to claim 2 , wherein determining at least one of the modulation mode and the TBS according to the MCS indicator field and the resource allocation field comprises:

determining at least one of the modulation mode and the TBS according to the MCS indicator field, the resource allocation field, a multi-access mode and an uplink and downlink mode.

4. The method according to claim 1 , wherein the preset TBS table comprises a one-dimensional table or a two-dimensional table, wherein,

in case that the preset TBS table is a one-dimensional table, a row index or a column index of the one-dimensional table is corresponding to one TBS index, and each TBS is corresponding to one TBS index; and

in case that the preset TBS table is a two-dimensional table, each row of the two-dimensional table is corresponding to one TBS index, each column of the two-dimensional table is corresponding to a number of resource elements, and each TBS is corresponding to one TBS index and a number of resource elements.

5. The method according to claim 1 , wherein,

a set of TBS index supported by the first TBS table being different from a set of TBS index supported by the second TBS table comprises: a set of TBS index supported by the first TBS table being a subset of a set of TBS index supported by the second TBS table.

6. The method according to claim 1 , wherein in the case where the field comprises the resource allocation field and the repetition number indicator field, determining the transmission parameter according to the field comprises:

determining the sequence length upon rate matching according to the resource allocation field and at least one of the repetition number indicator field and a coverage level mode.

7. The method according to claim 6 , wherein determining the sequence length upon rate matching according to the resource allocation field and at least one of the repetition number indicator field and a coverage level mode comprises at least one of the following cases:

determining the sequence length upon rate matching according to a modulation order, a number of resource elements occupied by one TB and the repetition number Nr; and

determining the sequence length upon rate matching according to a modulation order, a number of resource elements occupied by one TB and a factor Nr1 of the repetition number, wherein the repetition number Nr=Nr1×Nr2, Nr1 and Nr2 each are an integer greater than or equal to 2.

8. The method according to claim 1 , wherein the RU is a time-frequency two-dimensional resource of successive, Nsc subcarrier(s) in the frequency domain and successive, Nsym basic time-domain symbol unit(s) in the time domain, each RU comprises Nsc*Nsym resource element(s), the Nsc and the Nsym each are an integer greater than or equal to 1.

9. A method of determining a transmission parameter of a data shared channel, comprising:

obtaining a field configured to determine a transmission parameter of a data shared channel, the transmission parameter comprising at least one of a modulation mode, a transmission block size (TBS), a sequence length upon rate matching, the field comprising at least one of a modulation and coding scheme (MCS) indicator field, a resource allocation field and a repetition number indicator field, the MCS indicator field being configured to indicate a modulation and coding scheme, the resource allocation field being configured to indicate information of resource allocation of a transmission block (TB) based on a resource unit (RU), the repetition number indicator field being configured to indicate a number of repetitive transmission; and

transmitting downlink control information and determining the transmission parameter according to the field, the downlink control information comprising a field configured to determine a transmission parameter of a data shared channel,