阅读说明：本技术 一种时分双工通信方法和装置 (Time division duplex communication method and device ) 是由 刘鹏 蔡志龙 于 2019-05-16 设计创作，主要内容包括：本申请实施例公开了一种时分双工通信方法和装置,涉及通信技术领域,解决了现有技术中TDD切换的速度较慢,无法支持5G场景下的多种子载波间隔类型共存和切换,导致数据的传输效率较低等问题。具体方案为：射频设备获取基带设备发送的第一图谱索引和第一子载波间隔类型；第一图谱索引用于索引一个时隙内的每个正交频分复用OFDM符号对应的第一图谱类型；射频设备基于第一图谱索引和第一子载波间隔类型,配置第一时隙；其中,第一时隙为第一子载波间隔类型对应的时隙,第一时隙内的上下行指示是以第一时隙内的正交频分复用OFDM符号为转换点进行切换的；射频设备基于第一时隙进行数据传输。(The embodiment of the application discloses a time division duplex communication method and device, relates to the technical field of communication, and solves the problems that in the prior art, the TDD switching speed is low, coexistence and switching of multiple subcarrier interval types under a 5G scene cannot be supported, the data transmission efficiency is low, and the like. The specific scheme is as follows: the radio frequency equipment acquires a first map index and a first subcarrier interval type sent by the baseband equipment; the first map index is used for indexing a first map type corresponding to each Orthogonal Frequency Division Multiplexing (OFDM) symbol in one time slot; configuring, by the radio frequency device, a first time slot based on the first map index and the first subcarrier interval type; the first time slot is a time slot corresponding to the first subcarrier interval type, and uplink and downlink indications in the first time slot are switched by using an Orthogonal Frequency Division Multiplexing (OFDM) symbol in the first time slot as a switching point; the radio frequency device performs data transmission based on the first time slot.)

A method of time division duplex communication, the method comprising:

the radio frequency equipment acquires a first map index and a first subcarrier interval type sent by the baseband equipment; the first map index is used for indexing a first map type corresponding to each Orthogonal Frequency Division Multiplexing (OFDM) symbol in one time slot;

the radio frequency device configuring a first time slot based on the first map index and the first subcarrier spacing type; the first time slot is a time slot corresponding to the first subcarrier interval type, and uplink and downlink indications in the first time slot are switched by using an Orthogonal Frequency Division Multiplexing (OFDM) symbol in the first time slot as a switching point;

and the radio frequency equipment transmits data based on the first time slot.

The method of claim 1, wherein configuring, by the radio frequency device, a first time slot based on the first map index and the first subcarrier spacing type comprises:

the radio frequency equipment acquires slot timing according to the first subcarrier interval type;

acquiring the first map type according to the first map index;

and configuring the first time slot according to the slot timing and the first map type.

The method of claim 2, wherein the obtaining slot timing by the radio frequency device according to the first subcarrier spacing type comprises:

the radio frequency equipment acquires radio frame timing according to air interface timing, radio frame number and preconfigured radio frame duration;

acquiring subframe timing according to the radio frame timing and the preconfigured subframe duration;

and acquiring the slot timing according to the subframe timing, the preset slot time and the first subcarrier interval type.

The method of any of claims 1-3, wherein the first subcarrier spacing type comprises 15KHz, 30KHz, 60KHz, 120KHz, 240KHz, or 480 KHz.

The method according to any one of claims 1-4, wherein said obtaining the first atlas type according to the first atlas index comprises:

searching a first map type corresponding to the first map index in a map cache according to the first map index; the map cache comprises a plurality of map indexes and a map type corresponding to each map index, wherein the plurality of map indexes comprise the first map index.

The method of claim 5, wherein the graph cache comprises 128 graph types.

The method according to claim 5 or 6, wherein the graph cache comprises a first graph cache comprising the first graph type and a second graph cache in which graph types support dynamic updating and modification.

The method of claim 7, further comprising:

and the radio frequency equipment dynamically updates the map in the second map cache according to the clock frequency, and the uplink and downlink indications in the updated map are switched by taking the clock frequency as a switching point.

The method according to any one of claims 1-8, further comprising:

and the radio frequency equipment receives turn-off indication information sent by the baseband equipment, wherein the turn-off indication information is used for indicating the radio frequency equipment to perform at least one of digital domain turn-off or analog domain turn-off.

A time division duplex communication apparatus, comprising:

the communication interface is used for acquiring a first map index and a first subcarrier interval type sent by the baseband equipment; the first map index is used for indexing a first map type corresponding to each Orthogonal Frequency Division Multiplexing (OFDM) symbol in one time slot;

a processor, configured to configure a first time slot according to the first map index and the first subcarrier spacing type obtained by the communication interface; the first time slot is a time slot corresponding to the first subcarrier interval type, and uplink and downlink indications in the first time slot are switched by using an Orthogonal Frequency Division Multiplexing (OFDM) symbol in the first time slot as a switching point;

the processor is further configured to transmit data based on the first time slot.

The apparatus of claim 10, wherein the processor is specifically configured to:

acquiring slot timing according to the first subcarrier interval type;

acquiring the first map type according to the first map index;

and configuring the first time slot according to the slot timing and the first map type.

The apparatus of claim 11, wherein the processor is specifically configured to:

acquiring radio frame timing according to the air interface timing, the radio frame number and the pre-configured radio frame duration;

acquiring subframe timing according to the radio frame timing and the preconfigured subframe duration;

and acquiring the slot timing according to the subframe timing, the preset slot time and the first subcarrier interval type.

The apparatus of any of claims 10-12, wherein the first subcarrier spacing type comprises 15KHz, 30KHz, 60KHz, 120KHz, 240KHz, or 480 KHz.

The apparatus according to any one of claims 10-13, wherein the processor is specifically configured to:

searching a first map type corresponding to the first map index in a map cache according to the first map index; the map cache comprises a plurality of map indexes and a map type corresponding to each map index, wherein the plurality of map indexes comprise the first map index.

The apparatus of claim 14, wherein the graph cache comprises 128 graph types.

The apparatus of claim 14 or 15, wherein the graph cache comprises a first graph cache comprising the first graph type and a second graph cache in which graph types support dynamic updating and modification.

The apparatus of claim 16, wherein the processor is further configured to:

and dynamically updating the map in the second map cache according to the clock frequency, wherein the uplink and downlink indications in the updated map are switched by taking the clock frequency as a switching point.

The apparatus of any of claims 10-17, wherein the communication interface is further configured to:

and receiving turn-off indication information sent by the baseband equipment, wherein the turn-off indication information is used for indicating the processor to turn off at least one of a digital domain or an analog domain.

A computer storage medium having computer program code stored therein, which when run on a processor causes the processor to perform the time division duplex communication method of any of claims 1-9.

A tdd communication apparatus, comprising a processor and a memory, wherein the memory has instructions stored therein; the instructions, when executed by the processor, implement a time division duplex communication method as recited in any of claims 1-9.