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Communication method and user equipment

A technology for user equipment and communication methods, applied in wireless communication, signaling allocation, channel coding adjustment, etc., to achieve the effect of increasing overhead and improving frequency efficiency

Active Publication Date: 2019-07-26
SUN PATENT TRUST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also, 5 bits must be used for this indication

Method used

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Examples

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no. 1 example

[0048] The first embodiment of the present disclosure provides a communication method for constructing a parameter table in a wireless communication system including an eNode B and a UE. The communication method includes the steps of: defining a parameter table in both the eNode B and the UE, the parameter table including all entries of a conventional parameter table and extended entries; and sending from the eNode B to the UE a bitmap indication representing a sub-table selected from the parameter table, wherein the number of entries in the sub-table is the same as the number of entries in the legacy parameter table.

[0049] Before describing in detail the implementation of the communication method according to the first embodiment of the present disclosure, reference will be made to Figure 4-6 Describe different communication scenarios of UE and their different requirements for modulation order / coding rate.

[0050] Figure 4 It is a diagram schematically showing a commu...

no. 2 example

[0118] Figure 13 is a flowchart showing an example implementation of the communication method according to the second embodiment of the present disclosure.

[0119] Such as Figure 13 As shown in , the communication method starts at step 1301 where a plurality of parameter tables are defined in both the eNode B and the user equipment.

[0120] As mentioned above, the parameters may be various communication parameters such as CQI, difference CQI and / or MCS. Correspondingly, the parameter table may be a CQI table, a difference CQI table and / or an MCS table.

[0121] In addition, if Figure 14 As schematically shown in , the parameter table may at least include a traditional parameter table and an aggressive parameter table, and the aggressive parameter table includes entries related to a new modulation order or a new combination of entries related to a modulation order and a coding rate. Such as Figure 14The traditional parameter table 1401 shown in may be a table defined...

no. 3 example

[0137] Figure 17 is a flowchart illustrating an example implementation of a communication method according to a third embodiment of the present disclosure.

[0138] Such as Figure 17 As shown in , the communication method starts at step 1701, and at step 1701, the same parameter table as in the first embodiment is defined in both the eNode B and the user equipment.

[0139] Next, at step 1702, the eNode B sends an indication to the UE, and the indication jointly represents an entry of the parameter table through legacy bits and at least one unused bit.

[0140] In other words, the third embodiment according to the present disclosure focuses on using unused bits in combination with current bits (eg, MCS bits in DCI) to represent an extended parameter table, such as an extended MCS table.

[0141] Specifically, there are currently 5 bits used for MCS indication in the DCI format. Therefore, in order to represent the extended MCS table without affecting the current MCS bits,...

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Abstract

A communication method for constructing a parameter table in a wireless communication system including a base station and a user equipment, and user equipment are provided. The method includes: storing, as a type of a table corresponding to a modulation coding scheme notified by downlink data from a base station, a conventional modulation coding scheme parameter table including a combination of modulation orders and a transport block size index, and an aggressive modulation coding scheme parameter table including a modulation order higher than that of the conventional modulation coding schemeparameter table; receiving, from the base station, an indication to select which one of the legacy modulation coding scheme parameter table or the aggressive modulation coding scheme parameter table;selecting one of a traditional modulation and coding mode parameter table or the aggressive modulation and coding mode parameter table based on the indication, wherein the number of entries in the pre-stored aggressive modulation and coding mode parameter table is the same as the number of entries in the pre-stored traditional modulation and coding mode parameter table, the two tables are independently arranged, and the traditional modulation and coding mode parameter table is indicated through a downlink control information format 1A.

Description

[0001] This application is a divisional application of a Chinese invention patent application with an application date of August 24, 2012, an application number of 201280075042.0, an invention title of "communication method, base station and user equipment", and the applicant is Sun Patent Trust Company. technical field [0002] The present disclosure relates to a parameter table construction technology in the communication field. Background technique [0003] In 3GPP (3rd Generation Partnership Project) Release 8 / 9 / 10 systems, Channel Quality Indicator (CQI), which is a type of Channel State Information (CSI), is used at the Enhanced Node B (eNodeB, eNB) Important communication parameters for scheduling and link adaptation. In practice, since the UE (User Equipment) knows the downlink channel better based on a certain reference signal (such as CRS (Common Reference Signal) or CSI-RS (Channel State Information-Reference Signal)), the calculation and CQIs are recommended. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0016H04L1/0026H04L1/0029H04L1/003H04L1/0035H04L1/0009H04L1/0003H04W72/23H04L5/0057H04W88/02H04W88/08
Inventor 王立磊徐明星野正幸西尾昭彦
Owner SUN PATENT TRUST
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