CN109475002A

CN109475002A - A kind of caching method of downlink data transmission, terminal and base station

Info

Publication number: CN109475002A
Application number: CN201710807988.6A
Authority: CN
Inventors: 王磊; 高雪娟
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-09-08
Filing date: 2017-09-08
Publication date: 2019-03-15
Anticipated expiration: 2037-09-08
Also published as: CN109475002B; WO2019047573A1

Abstract

The present invention provides a kind of caching method of downlink data transmission, terminal and base stations, are related to the communications field, and the different PDSCH for solving the problem of that terminal receives the corresponding same HARQ process number in a TTI in the prior art can not determine how caching PDSCH.This method comprises: obtaining the grouping information of the relevant parameter of downlink transfer；According to the grouping information, the corresponding cache location of Physical Downlink Shared Channel PDSCH received is determined.The solution of the present invention is according to the grouping information of the relevant parameter of downlink transfer, determine the corresponding cache location of PDSCH, it can guarantee when terminal while when receiving two PDSCH, downlink data with identical HARQ process number is not in conflict when caching, while avoiding and introducing additional indicating bit instruction HARQ process number in DCI.

Description

A kind of caching method of downlink data transmission, terminal and base station

Technical field

The present invention relates to the communications field, in particular to a kind of caching method of downlink data transmission, terminal and base station.

Background technique

In LTE (Long Term Evolution, Long Term Evolution) system, terminal is in a TTI A PDSCH (Physical can only be at most received in (Transmission Time Interval, Transmission Time Interval) Downlink Shared Channel, Physical Downlink Shared Channel) or one PUSCH (Physical Uplink of transmission Shared Channel, Physical Uplink Shared Channel).Therefore a corresponding HARQ (Hybrid can only be received in a TTI Automatic Repeat reQuest, hybrid automatic repeat-request) process number a PDSCH, the HARQ of PDSCH transmission Process is apparent for terminal.It, can be according to DCI (Downlink when terminal is not properly received downlink data Control Information, Downlink Control Information) in carry HARQ process ID, identify different HARQ processes, it is different HARQ process corresponds to different buffering buffer storage locations, and terminal can number according to HARQ process and determine that buffer stores position It sets, to carry out data storage in buffer and retransmit to merge.

But in 5G system, terminal can receive two PDSCH simultaneously in the same TTI.Two PDSCH can come From different TRP (Transmission Receiving Point transmits receiving point), different TB (transport is carried Block, transmission block) information, therefore two independent HARQ processes can be corresponded to.When different TRP are to the number of HARQ process ID When range is identical (such as being all from 0 to 7), two PDSCH may correspond to identical HARQ process ID, at this point, terminal is at one The PDSCH of the same HARQ process number of two correspondences is received in TTI, terminal can not determine how caching from two TRP PDSCH, so as to cause to merge with not corresponding data, cause retransmit fail.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of caching method of downlink data transmission, terminal and base station, solutions Certainly terminal receives the different PDSCH for corresponding to the same HARQ process number in a TTI in the prior art, can not determine how The problem of caching PDSCH.

In order to solve the above technical problems, the embodiment of the present invention provides a kind of caching method of downlink data transmission, comprising:

Obtain the grouping information of the relevant parameter of downlink transfer；

According to the grouping information, the corresponding cache location of Physical Downlink Shared Channel PDSCH received is determined.

Optionally, the step of grouping information of the relevant parameter of acquisition downlink transfer includes:

Obtain the grouping information of parameter relevant to for dispatching the down control channel PDCCH of PDSCH；Or

Obtain the grouping information of parameter relevant to PDSCH；

Wherein, the grouping information includes at least one group being grouped to same parameter, and each group includes The parameter value of at least one parameter, the parameter that different groups include is different.

Optionally, the step of the grouping information of parameter relevant to for dispatching the down control channel PDCCH of PDSCH is obtained Suddenly include:

It obtains and is used to dispatch the relevant quasi- colocation site QCL of the PDCCH of PDSCH, wave beam beam or wave beam to linking BPL Grouping information.

Optionally, the grouping information includes the grouping information of QCL relevant to for dispatching the PDCCH of PDSCH；According to The grouping information, the step of determining the Physical Downlink Shared Channel PDSCH that receives corresponding cache location include:

Determine the corresponding QCL of PDCCH received；

According to the grouping information of QCL, the group of the corresponding QCL ownership of the PDCCH is determined；

According to the group of the corresponding QCL ownership of the PDCCH, the corresponding cache bit of PDSCH of the PDCCH scheduling is determined It sets；

Or

The grouping information includes the grouping information of beam relevant to for dispatching the PDCCH of PDSCH；According to described point Group information, the step of determining the Physical Downlink Shared Channel PDSCH that receives corresponding cache location include:

Determine the corresponding beam of PDCCH received；

According to the grouping information of beam, the group of the corresponding beam ownership of the PDCCH is determined；

According to the group of the corresponding beam ownership of the PDCCH, the corresponding caching of PDSCH of the PDCCH scheduling is determined Position；

Or

The grouping information includes the grouping information of BPL relevant to for dispatching the PDCCH of PDSCH；According to described point Group information, the step of determining the Physical Downlink Shared Channel PDSCH that receives corresponding cache location include:

Determine the corresponding BPL of PDCCH received；

According to the grouping information of BPL, the group of the corresponding BPL ownership of the PDCCH is determined；

According to the group of the corresponding BPL ownership of the PDCCH, the corresponding cache bit of PDSCH of the PDCCH scheduling is determined It sets；

Wherein, the parameter for belonging to different groups corresponds to different cache locations.

Optionally, the step of grouping information of acquisition parameter relevant to PDSCH includes:

Obtain the grouping information of QCL, beam or BPL relevant to PDSCH.

Optionally, the grouping information includes the grouping information of QCL relevant to PDSCH；According to the grouping information, really Surely the step of Physical Downlink Shared Channel PDSCH received corresponding cache location includes:

Obtain the corresponding QCL information of PDSCH carried in Downlink Control Information DCI；

According to the grouping information of QCL, the group of the corresponding QCL ownership of the PDSCH is determined；

According to the group of the corresponding QCL ownership of the PDSCH, the corresponding cache location of the PDSCH is determined；

Or

The grouping information includes the grouping information of beam relevant to PDSCH；According to the grouping information, determines and receive To Physical Downlink Shared Channel PDSCH corresponding cache location the step of include:

Obtain the corresponding beam information of PDSCH carried in Downlink Control Information DCI；

According to the grouping information of beam, the group of the corresponding beam ownership of the PDSCH is determined；

According to the group of the corresponding beam ownership of the PDSCH, the corresponding cache location of the PDSCH is determined；

Or

The grouping information includes the grouping information of BPL relevant to PDSCH；According to the grouping information, determines and receive To Physical Downlink Shared Channel PDSCH corresponding cache location the step of include:

Obtain the corresponding BPL information of PDSCH carried in Downlink Control Information DCI；

According to the grouping information of BPL, the group of the corresponding BPL ownership of the PDSCH is determined；

According to the group of the corresponding BPL ownership of the PDSCH, the corresponding cache location of the PDSCH is determined；

Obtain the reference signal that wave beam management relevant to for dispatching the PDCCH transmission beam of PDSCH or measurement use The grouping information of port.

Optionally, according to the grouping information, the corresponding cache bit of Physical Downlink Shared Channel PDSCH received is determined The step of setting include:

Determine the corresponding reference signal port of PDCCH transmission beam received；

According to the grouping information of reference signal port, determine that the corresponding reference signal port of the PDCCH transmission beam is returned The group of category；

According to the group of the corresponding reference signal port ownership of the PDCCH transmission beam, the PDCCH scheduling is determined The corresponding cache location of PDSCH；

Wherein, the reference signal port for belonging to different groups corresponds to different cache locations.

Obtain the grouping information for the reference signal port that wave beam management relevant to PDSCH transmission wave beam or measurement use.

Determine the corresponding reference signal port of PDSCH transmission wave beam；

According to the grouping information of reference signal port, determine that the corresponding reference signal port of the PDSCH transmission wave beam is returned The group of category；

According to the group of the corresponding reference signal port ownership of the PDSCH transmission wave beam, determine that the PDSCH is corresponding Cache location；

Receive the grouping information for the relevant parameter of downlink transfer that base station is sent by high-level signaling.

In order to solve the above technical problems, the embodiment of the present invention also provides a kind of terminal, comprising:

Module is obtained, for obtaining the grouping information of the relevant parameter of downlink transfer；

Determining module, for determining that the Physical Downlink Shared Channel PDSCH received is corresponding according to the grouping information Cache location.

Optionally, the acquisition module includes:

First acquisition submodule, for obtaining parameter relevant to for dispatching the down control channel PDCCH of PDSCH Grouping information；Or

Second acquisition submodule, for obtaining the grouping information of parameter relevant to PDSCH；

Optionally, first acquisition submodule includes:

First acquisition unit, for obtaining quasi- colocation site QCL relevant to for dispatching the PDCCH of PDSCH, wave beam beam Or wave beam is to the grouping information of link BPL.

Optionally, the grouping information includes the grouping information of QCL relevant to for dispatching the PDCCH of PDSCH；It is described Determining module includes:

First determines submodule, for determining the corresponding QCL of PDCCH received；

First determines grouping submodule, for the grouping information according to QCL, determines the corresponding QCL ownership of the PDCCH Group；

First determines cache sub-module, for the group according to the corresponding QCL ownership of the PDCCH, determines the PDCCH The corresponding cache location of the PDSCH of scheduling；

Or

The grouping information includes the grouping information of beam relevant to for dispatching the PDCCH of PDSCH；The determining mould Block includes:

Second determines submodule, for determining the corresponding beam of PDCCH received；

Second determines grouping submodule, for the grouping information according to beam, determines the corresponding beam ownership of the PDCCH Group；

Second determines cache sub-module, the group for being belonged to according to the corresponding beam of the PDCCH, described in determination The corresponding cache location of PDSCH of PDCCH scheduling；

Or

The grouping information includes the grouping information of BPL relevant to for dispatching the PDCCH of PDSCH；The determining mould Block includes:

Third determines submodule, for determining the corresponding BPL of PDCCH received；

Third determines grouping submodule, for the grouping information according to BPL, determines the corresponding BPL ownership of the PDCCH Group；

Third determines cache sub-module, for the group according to the corresponding BPL ownership of the PDCCH, determines the PDCCH The corresponding cache location of the PDSCH of scheduling；

Optionally, second acquisition submodule includes:

Second acquisition unit, for obtaining the grouping information of QCL, beam or BPL relevant to PDSCH.

Optionally, the grouping information includes the grouping information of QCL relevant to PDSCH；The determining module includes:

Third acquisition submodule, for obtaining the corresponding QCL information of PDSCH carried in Downlink Control Information DCI；

4th determines grouping submodule, for the grouping information according to QCL, determines the corresponding QCL ownership of the PDSCH Group；

4th determines cache sub-module, for the group according to the corresponding QCL ownership of the PDSCH, determines the PDSCH Corresponding cache location；

Or

The grouping information includes the grouping information of beam relevant to PDSCH；The determining module includes:

4th acquisition submodule, for obtaining the corresponding beam information of PDSCH carried in Downlink Control Information DCI；

5th determines grouping submodule, for the grouping information according to beam, determines the corresponding beam ownership of the PDSCH Group；

5th determines cache sub-module, the group for being belonged to according to the corresponding beam of the PDSCH, described in determination The corresponding cache location of PDSCH；

Or

The grouping information includes the grouping information of BPL relevant to PDSCH；The determining module includes:

5th acquisition submodule, for obtaining the corresponding BPL information of PDSCH carried in Downlink Control Information DCI；

6th determines grouping submodule, for the grouping information according to BPL, determines the corresponding BPL ownership of the PDSCH Group；

6th determines cache sub-module, for the group according to the corresponding BPL ownership of the PDSCH, determines the PDSCH Corresponding cache location；

Optionally, first acquisition submodule includes:

Third acquiring unit, for obtaining wave beam management relevant to for dispatching the PDCCH transmission beam of PDSCH or survey Measure the grouping information of the reference signal port used.

Optionally, the determining module includes:

4th determines submodule, for determining the corresponding reference signal port of PDCCH transmission beam received；

7th determines that grouping submodule determines the PDCCH transmission wave for the grouping information according to reference signal port The group of the corresponding reference signal port ownership of beam；

7th determines cache sub-module, for according to the corresponding reference signal port ownership of the PDCCH transmission beam Group determines the corresponding cache location of PDSCH of the PDCCH scheduling；

Optionally, second acquisition submodule includes:

4th acquiring unit, the reference letter used for obtaining wave beam management relevant to PDSCH transmission wave beam or measurement The grouping information of number port.

Optionally, the determining module includes:

5th determines submodule, for determining the corresponding reference signal port of PDSCH transmission wave beam；

8th determines that grouping submodule determines the PDSCH transmission wave for the grouping information according to reference signal port The group of the corresponding reference signal port ownership of beam；

8th determines cache sub-module, for according to the corresponding reference signal port ownership of the PDSCH transmission wave beam Group determines the corresponding cache location of the PDSCH；

Optionally, the acquisition module includes:

Receiving submodule, the grouping for receiving the relevant parameter of downlink transfer that base station is sent by high-level signaling are believed Breath.

In order to solve the above technical problems, the embodiment of the present invention also provides a kind of terminal, including first memory, at first The computer program managing device and storage on the first memory and can running on first processor, the first processor are used for The program in memory is read, following process is executed:

In order to solve the above technical problems, the embodiment of the present invention also provides a kind of computer readable storage medium, deposit thereon Computer program is contained, which performs the steps of when being executed by processor

In order to solve the above technical problems, the embodiment of the present invention also provides a kind of caching method of downlink data transmission, packet It includes:

The relevant parameter of downlink transfer is grouped；

Grouping information is sent to terminal, so that the terminal determines under the physics received according to the grouping information The shared corresponding cache location of channel PDSCH of row.

Optionally, the step of relevant parameter of downlink transfer being grouped include:

Parameter relevant to being used to dispatch the down control channel PDCCH of PDSCH is grouped；Or

Parameter relevant to PDSCH is grouped；

Wherein, the grouping information after grouping includes at least one group being grouped to same parameter, each group Comprising at least one parameter, the parameter value for the parameter that different groups include is different.

Optionally, the step of parameter relevant to being used to dispatch the down control channel PDCCH of PDSCH being grouped packet It includes:

By quasi- colocation site QCL relevant to the PDCCH for being used to dispatch PDSCH, wave beam beam or wave beam to link BPL into Row grouping.

Optionally, will parameter relevant to PDSCH the step of being grouped include:

QCL, beam or BPL relevant to PDSCH are grouped.

The reference signal end that wave beam management relevant to being used to dispatch the PDCCH transmission beam of PDSCH or measurement are used Mouth is grouped.

Optionally, will parameter relevant to PDSCH the step of being grouped include:

The reference signal port that wave beam management relevant to PDSCH transmission wave beam or measurement use is grouped.

Optionally, the step of grouping information being sent to terminal include:

Grouping information is sent to terminal by high-level signaling.

Optionally, after the relevant parameter of downlink transfer being grouped, further includes:

The PDCCH and PDSCH for dispatching PDSCH are sent on the corresponding wave beam of the relevant parameter of downlink transfer.

In order to solve the above technical problems, the embodiment of the present invention also provides a kind of base station, comprising:

Grouping module, for the relevant parameter of downlink transfer to be grouped；

First sending module, for grouping information to be sent to terminal, so that the terminal is according to the grouping information, really Surely the corresponding cache location of Physical Downlink Shared Channel PDSCH received.

Optionally, the grouping module includes:

First grouping submodule, for carrying out parameter relevant to being used to dispatch the down control channel PDCCH of PDSCH Grouping；Or

Second packet submodule, for parameter relevant to PDSCH to be grouped；

Optionally, the first grouping submodule includes:

First grouped element, for by quasi- colocation site QCL relevant to the PDCCH for being used to dispatch PDSCH, wave beam beam or Person's wave beam is grouped link BPL.

Optionally, the second packet submodule includes:

Second packet unit, for QCL, beam or BPL relevant to PDSCH to be grouped.

Optionally, the first grouping submodule includes:

Third grouped element, for by wave beam management relevant to being used to dispatch the PDCCH transmission beam of PDSCH or measurement The reference signal port used is grouped.

Optionally, the second packet submodule includes:

4th grouped element, the reference signal for using wave beam management relevant to PDSCH transmission wave beam or measurement Port is grouped.

Optionally, first sending module includes:

Sending submodule, for grouping information to be sent to terminal by high-level signaling.

Optionally, further includes:

Second sending module, after being grouped the relevant parameter of downlink transfer for the grouping module, in downlink Transmit the PDCCH and PDSCH sent on the corresponding wave beam of relevant parameter for dispatching PDSCH.

In order to solve the above technical problems, the embodiment of the present invention also provides a kind of base station, including second memory, at second It manages device and is stored in the computer program that can be run on second memory and in second processor, the second processor is used for The program in memory is read, following process is executed:

The relevant parameter of downlink transfer is grouped；

The advantageous effects of the above technical solutions of the present invention are as follows:

The caching method of the downlink data transmission of the embodiment of the present invention, the first grouping of the relevant parameter of acquisition downlink transfer Information；Then according to grouping information, the corresponding cache location of Physical Downlink Shared Channel PDSCH received is determined.In this way, root According to the grouping information of the relevant parameter of downlink transfer, the corresponding cache location of PDSCH is determined, it is ensured that when terminal receives simultaneously When to two PDSCH, when downlink data caching with identical HARQ process number is not in conflict, while being avoided in DCI It is middle to introduce additional indicating bit instruction HARQ process number.It solves terminal in the prior art and receives correspondence in a TTI together The different PDSCH of one HARQ process number can not determine how the problem of caching PDSCH.

Detailed description of the invention

Fig. 1 is the flow chart of the caching method of downlink data transmission provided in an embodiment of the present invention；

Fig. 2 is the HARQ process schematic diagram of PDSCH transmission provided in an embodiment of the present invention；

Fig. 3 is the structural schematic diagram of terminal provided in an embodiment of the present invention；

Fig. 4 is another structural schematic diagram of terminal provided in an embodiment of the present invention；

Fig. 5 is another flow chart of the caching method of downlink data transmission provided in an embodiment of the present invention；

Fig. 6 is the structural schematic diagram of base station provided in an embodiment of the present invention；

Fig. 7 is another structural schematic diagram of base station provided in an embodiment of the present invention.

Specific embodiment

To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool Body embodiment is described in detail.

In some embodiments of the invention, shown in referring to Fig.1, a kind of caching method of downlink data transmission is provided, Include:

Step 101, the grouping information of the relevant parameter of downlink transfer is obtained.

Here, it by obtaining the grouping information of the relevant parameter of downlink transfer, is mentioned for the cache location of subsequent determining PDSCH It has supplied to support.

Wherein, the relevant parameter of downlink transfer can be grouped by base station, and grouping information is sent to terminal.

Further, grouping information can be sent to terminal by high-level signaling by base station.At this point, above-mentioned steps 101 include:

Step 102, according to the grouping information, the corresponding caching of Physical Downlink Shared Channel PDSCH received is determined Position.

Here, it according to grouping information, determines the corresponding cache location of PDSCH received, ensure that when terminal while connecing When receiving two PDSCH, the downlink data with identical HARQ process number is not in conflict when caching.

The caching method of the downlink data transmission of the embodiment of the present invention is believed according to the grouping of the relevant parameter of downlink transfer Breath, determine the corresponding cache location of PDSCH, it is ensured that when terminal simultaneously receive two PDSCH when, have identical HARQ into Be not in conflict when the downlink data caching of journey number, at the same avoid introduced in DCI additional indicating bit indicate HARQ into Cheng Hao.

Optionally, above-mentioned steps 101 include:

Step 1011, the grouping information of parameter relevant to for dispatching the down control channel PDCCH of PDSCH is obtained.

Here, it by the grouping information for obtaining with being used to dispatch the relevant parameter of the PDCCH of PDSCH, can be based on and PDCCH The grouping information of relevant parameter determines the corresponding cache location of PDSCH of PDCCH scheduling.

Wherein, parameter relevant to the PDCCH for being used to dispatch PDSCH can be grouped by base station, and grouping is believed Breath is sent to terminal.

Or step 1012, obtain the grouping information of parameter relevant to PDSCH.

It here, can be based on point of parameter relevant to PDSCH by obtaining the grouping information of parameter relevant to PDSCH Group information determines the corresponding cache location of PDSCH.

Wherein, parameter relevant to PDSCH can be grouped by base station, and grouping information is sent to terminal.

Here, a kind of parameter relevant to PDCCH or a kind of parameter relevant with PDSCH can be divided by base station Group obtains at least one group, and each group includes at least one parameter, and the parameter value for the parameter that different groups include is different.

It, can be based on PDCCH the PDSCH phase received due to the parameter value difference for the parameter that different groups include The parameter value of the parameter of pass accurately determines the group that the relevant parameter of the PDCCH received or PDSCH is belonged to, in turn Determine the corresponding cache location of PDSCH.

It should be noted that by base station will a kind of parameter relevant to PDCCH or PDSCH be grouped when, for All parameter values of parameter relevant to PDCCH or PDSCH can be grouped by one terminal, when to avoid due to grouping Some parameter is omitted to lead to not determine its corresponding group.

As a kind of optional implementation, above-mentioned steps 1011 include:

Here, relevant to being used to dispatch the PDCCH of PDSCH by obtaining, QCL (Quasi Co Located, quasi- co-sited Location), the grouping information of wave beam beam or BPL (Beam Pair Link, wave beam to link), can be relevant based on PDCCH The grouping information of QCL, beam or BPL determine the corresponding cache location of PDSCH that PDCCH is called.

It wherein, can be at least by QCL, beam or BPL relevant to the PDCCH for being used to dispatch PDSCH points by base station One group, includes at least one QCL, beam or BPL parameter in each group, and different groups QCL, beam for including or The parameter value of person's BPL parameter is all different.

Below to the grouping information based on QCL, beam or BPL, the corresponding cache bit of PDSCH that PDCCH is called is determined It sets and describes in detail.

Optionally, the grouping information includes the grouping information of QCL relevant to for dispatching the PDCCH of PDSCH.

Here, QCL relevant to the PDCCH for being used to dispatch PDSCH can be divided at least one group by base station, each Group includes at least one QCL, and the QCL that different groups include is different.

Wherein, for a terminal, relevant all QCL are grouped when can transmit the PDCCH that base station configures.Example Such as, it is assumed that for a terminal, relevant QCL is shared N number of when PDCCH is transmitted, and can be at least by N number of QCL points by base station One group.N is positive integer.

Above-mentioned steps 102 include:

Step 1021, the corresponding QCL of PDCCH received is determined.

Here, it is first determined the corresponding QCL of the PDCCH received determines the small of ownership based on the QCL in order to subsequent Group.

Wherein, terminal needs the QCL information configured according to base station when determining reception PDCCH, determines in each QCL It attempts to receive PDCCH on wave beam.Wherein QCL can correspond to different CORESET (Control Resource Set, control money Source set) or different CORESET groups, the different PDCCH position candidates in the same CORESET can also be respectively corresponded Candidate, in the present embodiment and with no restrictions.

Step 1022, according to the grouping information of QCL, the group of the corresponding QCL ownership of the PDCCH is determined.

Here, since the grouping information of QCL includes at least one group, each group includes at least one QCL, and each The QCL that group includes is different, therefore according to the grouping information of QCL, can accurately determine the group of the corresponding QCL ownership of PDCCH.

Step 1023, according to the group of the corresponding QCL ownership of the PDCCH, PDSCH pairs of the PDCCH scheduling is determined The cache location answered.

Here, according to the group of the corresponding QCL ownership of PDCCH, the corresponding cache location of PDSCH of PDCCH scheduling is determined, Be not in when ensure that the downlink data caching when terminal while when receiving two PDSCH, with identical HARQ process number Conflict.

For example, it is assumed that beam is determined by QCL parameter.Assuming that for a terminal, PDCCH when transmitting relevant QCL it is total Have N number of, it is assumed that N=6.6 QCL can be divided for Liang Ge group by base station, group A is { QCL1, QCL2, QCL3 }, and group B is { QCL4, QCL5, QCL6 }.

Assuming that base station is that terminal is configured with 6 CORESET, different CORESET corresponds to different QCL, namely different CORESET correspond to different beam directions.Terminal needs the wave determined in different CORESET according to corresponding QCL Beam determines and receives PDCCH.

Assuming that terminal determines the PDCCH for receiving scheduling PDSCH1 on CORESET1, and its corresponding QCL is QCL1. Meanwhile terminal determines the PDCCH for receiving scheduling PDSCH2 on CORESET5, and its corresponding QCL is QCL4.Assume simultaneously The corresponding HARQ process ID of PDSCH1 and PDSCH2 is 1, and is not properly received, terminal need to PDSCH1 with And the data of PDSCH2 carrying are cached, to be merged with re-transmission data.At this point, terminal is according to scheduling PDSCH's The group that the corresponding QCL of PDCCH is belonged to determines how the data that caching is not properly received.

Terminal determines that the QCL1 belongs to group A, then delays data according to the corresponding QCL1 of PDCCH of scheduling PDSCH1 It deposits to HARQ buffer1, and HARQ process ID identical as subsequent use transmission and the relevant QCL ownership of scheduling PDCCH It is merged in the data of group A.Certainly, if subsequent transmitted using identical HARQ process ID and dispatch PDCCH correlation QCL belong to the data of group A and be not still properly received, then continue to store data to HARQ buffer1.Simultaneously eventually End determines that QCL4 belongs to group B, then by data buffer storage to HARQ according to the corresponding QCL4 of PDCCH of scheduling PDSCH2 Buffer2, and belong to group B's using identical HARQ process ID transmission and the corresponding QCL of scheduling PDCCH with subsequent Data merge.Certainly, if it is subsequent belonged to using identical HARQ process ID and the corresponding QCL of scheduling PDCCH it is small The data of group B are not still properly received, then continue to store data to HARQ buffer2.

Wherein, HARQ buffer is the certain rule of terminal basis in memory headroom (for example, the HARQ supported The factors such as maximum storage capacity that process number, transmission mode, terminal hardware are supported) virtual memory space that divides, it is different HARQ buffer occupy different memory space positions.In the present embodiment for the quantity of HARQ buffer, how to divide, How resource is distributed and is not particularly limited.

One simply example as shown in Fig. 2, PDSCH1 and PDSCH2 is from two different TRP, and has identical HARQ process ID, such as be 1.When just passing, the PDCCH1 for dispatching PDSCH1 is transmitted on the wave beam 1 that QCL1 is determined, The PDCCH2 for dispatching PDSCH2 is transmitted on the wave beam 2 that QCL4 is determined.Due to not being properly received both, it is therefore desirable to carry out It retransmits.When re-transmission, the PDCCH1 that scheduling PDSCH1 is retransmitted is transmitted on the wave beam 3 that QCL2 is determined, scheduling PDSCH2 is retransmitted PDCCH is still transmitted on the wave beam 2 that QCL4 is determined.Terminal can be grouped according to the QCL of the corresponding QCL ownership of scheduling PDCCH Difference, determine the corresponding HARQ buffer of each PDSCH.Certainly, the re-transmission of PDSCH1 and PDSCH2 is likely to occur in difference TTI on, in the present embodiment and without limitation.

Further, the first biography of PDSCH1 and PDSCH2 with identical HARQ process number are not limited to same In TTI.

So far, according to the grouping information of the relevant QCL of PDCCH for dispatching PDSCH, determine that the corresponding QCL of PDCCH returns The group of category, and then determine the corresponding cache location of PDSCH of PDCCH scheduling, it ensure that when terminal while receiving two When PDSCH, the downlink data with identical HARQ process number is not in conflict when caching, while avoiding and introducing in DCI Additional indicating bit indicates HARQ process number.

Optionally, the grouping information includes the grouping information of beam relevant to for dispatching the PDCCH of PDSCH.

Here, beam relevant to the PDCCH for being used to dispatch PDSCH can be divided at least one group by base station, often A group includes at least one beam, and the beam that different groups include is different.

Wherein, for a terminal, relevant all beam are grouped when can transmit the PDCCH that base station configures.

Above-mentioned steps 102 include:

Step 1024, the corresponding beam of PDCCH received is determined.

Here, it is first determined the corresponding beam of the PDCCH received determines the small of ownership based on the QCL in order to subsequent Group.

Step 1025, according to the grouping information of beam, the group of the corresponding beam ownership of the PDCCH is determined.

Here, since the grouping information of beam includes at least one group, each group includes at least one beam, and every The beam that a group includes is different, therefore according to the grouping information of beam, can accurately determine the corresponding beam ownership of PDCCH Group.

Step 1026, according to the group of the corresponding beam ownership of the PDCCH, PDSCH pairs of the PDCCH scheduling is determined The cache location answered.

Here, according to the group of the corresponding beam ownership of PDCCH, the corresponding cache bit of PDSCH of PDCCH scheduling is determined It sets, will not go out when ensure that the downlink data caching when terminal while when receiving two PDSCH, with identical HARQ process number Now conflict.

At this point, determining the corresponding beam of PDCCH according to the grouping information of the relevant beam of PDCCH for dispatching PDSCH The group of ownership, and then determine the corresponding cache location of PDSCH of PDCCH scheduling, it ensure that when terminal while receiving two When PDSCH, the downlink data with identical HARQ process number is not in conflict when caching, while avoiding and introducing in DCI Additional indicating bit indicates HARQ process number.

Optionally, the grouping information includes the grouping information of BPL relevant to for dispatching the PDCCH of PDSCH.

Here, BPL relevant to the PDCCH for being used to dispatch PDSCH can be divided at least one group by base station, each Group includes at least one BPL, and the BPL that different groups include is different.

Wherein, for a terminal, relevant all BPL are grouped when can transmit the PDCCH that base station configures.

Above-mentioned steps 102 include:

Step 1027, the corresponding BPL of PDCCH received is determined.

Here, it is first determined the corresponding BPL of the PDCCH received determines the small of ownership based on the BPL in order to subsequent Group.

Step 1028, according to the grouping information of BPL, the group of the corresponding BPL ownership of the PDCCH is determined.

Here, since the grouping information of BPL includes at least one group, each group includes at least one BPL, and each The BPL that group includes is different, therefore according to the grouping information of BPL, can accurately determine the group of the corresponding BPL ownership of PDCCH.

Step 1029, according to the group of the corresponding BPL ownership of the PDCCH, PDSCH pairs of the PDCCH scheduling is determined The cache location answered.

Here, according to the group of the corresponding BPL ownership of PDCCH, the corresponding cache location of PDSCH of PDCCH scheduling is determined, Be not in when ensure that the downlink data caching when terminal while when receiving two PDSCH, with identical HARQ process number Conflict.

At this point, determining that the corresponding BPL of PDCCH returns according to the grouping information of the relevant BPL of PDCCH for dispatching PDSCH The group of category, and then determine the corresponding cache location of PDSCH of PDCCH scheduling, it ensure that when terminal while receiving two When PDSCH, the downlink data with identical HARQ process number is not in conflict when caching, while avoiding and introducing in DCI Additional indicating bit indicates HARQ process number.

As a kind of optional implementation, above-mentioned steps 1012 include:

Obtain the grouping information of QCL, beam or BPL relevant to PDSCH.

It here, can be relevant based on PDSCH by obtaining the grouping information of QCL, beam or BPL relevant to PDSCH The grouping information of QCL, beam or BPL determine the corresponding cache location of PDSCH.

Wherein, QCL, beam or BPL relevant to PDSCH can be divided at least one group, Mei Ge little by base station Parameter comprising at least one QCL, beam QCL, beam or BPL parameter that perhaps BPL parameter and different groups include in group Value is all different.

Below to the grouping information based on QCL, beam or BPL, determine that the corresponding cache location of PDSCH is situated between in detail It continues.

Optionally, the grouping information includes the grouping information of QCL relevant to PDSCH.

Here, QCL relevant to PDSCH can be divided at least one group by base station, each group includes at least one A QCL, and the QCL that different groups include is different.

Wherein, for a terminal, relevant all QCL are grouped when can be by PDSCH transmission that base station configures.Example Such as, it is assumed that for a terminal, when PDSCH transmission, relevant QCL shared M, and can be divided M QCL by base station be at least One group.M is positive integer.

Above-mentioned steps 102 include:

Step 10210, the corresponding QCL information of PDSCH carried in Downlink Control Information DCI is obtained.

Here, the corresponding QCL information of PDSCH carried in DCI is obtained first, is returned in order to subsequent based on QCL determination The group of category.

Step 10211, according to the grouping information of QCL, the group of the corresponding QCL ownership of the PDSCH is determined.

Here, since the grouping information of QCL includes at least one group, each group includes at least one QCL, and each The QCL that group includes is different, therefore according to the grouping information of QCL, can accurately determine the group of the corresponding QCL ownership of PDSCH.

Step 10212, according to the group of the corresponding QCL ownership of the PDSCH, the corresponding cache bit of the PDSCH is determined It sets.

Here, it according to the group of the corresponding QCL ownership of PDSCH, determines the corresponding cache location of PDSCH, ensure that when eventually When holding while receiving two PDSCH, the downlink data with identical HARQ process number is not in conflict when caching.

For example, it is assumed that for a terminal, when PDSCH transmission, relevant QCL shared M, it is assumed that M=10.It can pass through Base station divides 10 QCL for Liang Ge group, and group C is { QCL1 QCL2 QCL3 QCL4 QCL5 }, and group D is { QCL6 QCL7 QCL8 QCL9 QCL10}.The corresponding QCL parameter of PDSCH carries in the DCI by dispatching the PDSCH.

Assuming that terminal can receive two independent PDSCH simultaneously, and two PDSCH have independent HARQ process, and The Serial Number Range of HARQ process is consistent, such as is 1-8.When the data of the identical HARQ process ID of two PDSCH need When re-transmission, the group that the QCL parameter that terminal carries in the DCI according to two terminals of scheduling belongs to determines PDSCH data buffer storage HARQ buffer。

Assuming that the HARQ process ID of PDSCH1 and PDSCH2 is 2.When terminal is not properly received PDSCH1, Terminal needs to determine that QCL4 belongs to group C, and then determination stores data to corresponding according to the corresponding QCL4 of PDSCH1 HARQ buffer X1, to be merged on HARQ process2 with the subsequent re-transmission data of PDSCH1.When terminal does not have When being properly received PDSCH2, terminal needs to determine that QCL8 belongs to group D according to the corresponding QCL8 of PDSCH2, and then determining will Data are stored to corresponding HARQ buffer Y1, so as on HARQ process2 with the subsequent re-transmission data of PDSCH2 into Row merges.HARQ buffer X1 and HARQ buffer Y1 is the storage region not overlapped each other, even if terminal receives simultaneously To two PDSCH with identical HARQ process number, identical position can not be stored, because the two PDSCH are carried Raw information it is different, although HARQ process number is identical, belong to the different two HARQ process from different TRP.

Certainly, just passing the corresponding QCL of PDSCH QCL corresponding with PDSCH is retransmitted can be different.As mentioned above it is possible, herein It repeats no more.

So far, according to the grouping information of the relevant QCL of PDSCH, the group of the corresponding QCL ownership of PDSCH is determined, and then really Determine the corresponding cache location of PDSCH, ensure that when terminal while when receiving two PDSCH, with identical HARQ process number Downlink data is not in conflict when caching, while avoiding and introducing additional indicating bit instruction HARQ process number in DCI.

Optionally, the grouping information includes the grouping information of beam relevant to PDSCH.

Here, beam relevant to PDSCH can be divided at least one group by base station, each group includes at least one A beam, and the beam that different groups include is different.

Wherein, for a terminal, relevant all beam are grouped when can be by PDSCH transmission that base station configures.

Above-mentioned steps 102 include:

Step 10213, the corresponding beam information of PDSCH carried in Downlink Control Information DCI is obtained.

Here, the corresponding beam information of PDSCH carried in DCI is obtained first, is returned in order to subsequent based on QCL determination The group of category.

Step 10214, according to the grouping information of beam, the group of the corresponding beam ownership of the PDSCH is determined.

Here, since the grouping information of beam includes at least one group, each group includes at least one beam, and every The beam that a group includes is different, therefore according to the grouping information of beam, can accurately determine the corresponding beam ownership of PDSCH Group.

Step 10215, according to the group of the corresponding beam ownership of the PDSCH, the corresponding cache bit of the PDSCH is determined It sets.

Here, it according to the group of the corresponding beam ownership of PDSCH, determines the corresponding cache location of PDSCH, ensure that when eventually When holding while receiving two PDSCH, the downlink data with identical HARQ process number is not in conflict when caching.

At this point, determining the group of the corresponding beam ownership of PDSCH, in turn according to the grouping information of the relevant beam of PDSCH It determines the corresponding cache location of PDSCH, ensure that when terminal while when receiving two PDSCH, there is identical HARQ process number Downlink data caching when be not in conflict, while avoiding and introducing additional indicating bit instruction HARQ process number in DCI.

Optionally, the grouping information includes the grouping information of BPL relevant to PDSCH.

Here, BPL relevant to PDSCH can be divided at least one group by base station, each group includes at least one A BPL, and the BPL that different groups include is different.

Wherein, for a terminal, relevant all BPL are grouped when can be by PDSCH transmission that base station configures.

Above-mentioned steps 102 include:

Step 10216, the corresponding BPL information of PDSCH carried in Downlink Control Information DCI is obtained.

Here, the corresponding BPL information of PDSCH carried in DCI is obtained first, is returned in order to subsequent based on BPL determination The group of category.

Step 10217, according to the grouping information of BPL, the group of the corresponding BPL ownership of the PDSCH is determined.

Step 10218, according to the group of the corresponding BPL ownership of the PDSCH, the corresponding cache bit of the PDSCH is determined It sets.

Here, it according to the group of the corresponding BPL ownership of PDSCH, determines the corresponding cache location of PDSCH, ensure that when eventually When holding while receiving two PDSCH, the downlink data with identical HARQ process number is not in conflict when caching.

At this point, determining the group of the corresponding BPL ownership of PDSCH, and then really according to the grouping information of the relevant BPL of PDSCH Determine the corresponding cache location of PDSCH, ensure that when terminal while when receiving two PDSCH, with identical HARQ process number Downlink data is not in conflict when caching, while avoiding and introducing additional indicating bit instruction HARQ process number in DCI.

As another optional implementation, above-mentioned steps 1011 include:

Here, it is used by acquisition wave beam management relevant to for dispatching the PDCCH transmission beam of PDSCH or measurement The grouping information of reference signal port can be determined based on the grouping information of the relevant reference signal port of PDCCH transmission beam The corresponding cache location of PDSCH that PDCCH is called.

Wherein, can be by base station, the reference signal end that wave beam management relevant to PDCCH transmission beam or measurement are used Mouth is divided at least one group, includes at least one reference signal port in each group, and the reference that different groups include is believed Number port is all different.

Wherein, the reference signal port that wave beam management or measurement use such as can be CSI-RS (Channel State InformationReference Signal, channel state information reference signals) port, but not limited to this.

Wherein, for a terminal, the relevant all reference signal ports of PDCCH transmission beam that base station can be configured into Row grouping.For example, it is assumed that the relevant port CSI-RS of PDCCH transmission beam shares W for a terminal, base can be passed through It stands and the W port CSI-RS is divided at least one group.W is positive integer.

Optionally, above-mentioned steps 102 include:

Step 10219, the corresponding reference signal port of PDCCH transmission beam received is determined.

Here, it is first determined the corresponding reference signal port of the PDCCH transmission beam received is based on being somebody's turn to do in order to subsequent Reference signal port determines the group of ownership.

Step 10220, according to the grouping information of reference signal port, the corresponding reference of the PDCCH transmission beam is determined The group of signal port ownership.

Here, since the grouping information of reference signal port includes at least one group, each group includes at least one Reference signal port, and the reference signal port that each group includes is different, therefore according to the grouping information of reference signal port, It can accurately determine the group of the corresponding reference signal port ownership of PDCCH.

Step 10221, according to the group of the PDCCH transmission beam corresponding reference signal port ownership, determine described in The corresponding cache location of PDSCH of PDCCH scheduling.

Here, according to the group of the corresponding reference signal port ownership of PDCCH transmission beam, PDCCH scheduling is determined The corresponding cache location of PDSCH ensure that when terminal while when receiving two PDSCH, have under identical HARQ process number It is not in conflict when row data buffer storage.

For example, it is assumed that base station is configured with the W ends CSI-RS for wave beam management or measurement for it for a terminal Mouthful, W=6.6 ports CSI-RS can be divided into Liang Ge group by base station, group E is { P1, P2, P3 }, group F be P4, P5, P6 }.And grouping information is sent to by terminal by high-level signaling.After terminal determination receives PDCCH, according to the PDCCH institute Wave beam, determine the corresponding port CSI-RS of the wave beam, so that it is determined that PDCCH scheduling the corresponding HARQ of PDSCH buffer。

Assuming that terminal can receive two independent PDSCH simultaneously, and two PDSCH have independent HARQ process, and The Serial Number Range of HARQ process is consistent, such as is 1-8.When the data of the identical HARQ process ID of two PDSCH need When re-transmission, the group that terminal belongs to according to the corresponding port CSI-RS of PDCCH transmission beam of two terminals of scheduling is determined The HARQ buffer of PDSCH data buffer storage.

Assuming that the HARQ process ID of PDSCH1 and PDSCH2 is 1.When terminal is not properly received PDSCH1, Terminal needs determine that P1 belongs to group E according to the corresponding port the CSI-RS P1 of PDCCH transmission beam of scheduling PDSCH1, into And determination stores data to corresponding HARQ buffer X2, so as to subsequent heavy with PDSCH1 on HARQ process1 Data are passed to merge.When terminal is not properly received PDSCH2, terminal needs the PDCCH transmission wave according to scheduling PDSCH2 The corresponding port the CSI-RS P6 of beam determines that P6 belongs to group F, and then determination stores data to corresponding HARQ buffer Y2, to be merged on HARQ process1 with the subsequent re-transmission data of PDSCH2.HARQ buffer X2 and HARQ Buffer Y2 is independent from each other storage region.

Certainly, the corresponding port CSI-RS of PDCCH transmission beam and Schedule retransmission PDSCH for just passing PDSCH are dispatched It the corresponding port CSI-RS of PDCCH transmission beam can be different.As mentioned above it is possible, details are not described herein.

So far, the grouping of the reference signal port used according to the relevant wave beam management of PDCCH transmission beam or measurement is believed Breath, determines the group of the corresponding reference signal port ownership of PDCCH, and then determines the corresponding cache bit of PDSCH that PDCCH is called It sets, will not go out when ensure that the downlink data caching when terminal while when receiving two PDSCH, with identical HARQ process number Now conflict, while avoiding and introducing additional indicating bit instruction HARQ process number in DCI.

As another optional implementation, above-mentioned steps 1012 include:

Here, by obtaining wave beam management relevant to PDSCH transmission wave beam or measuring the reference signal port used Grouping information can determine the corresponding caching of PDSCH based on the grouping information of the relevant reference signal port of PDSCH transmission wave beam Position.

Wherein, can be by base station, the reference signal end that wave beam management relevant to PDSCH transmission wave beam or measurement are used Mouth is divided at least one group, includes at least one reference signal port in each group, and the reference that different groups include is believed Number port is all different.

Wherein, the reference signal port that wave beam management or measurement use such as can be the port CSI-RS, but not limited to this.

Wherein, for a terminal, the relevant all reference signal ports of PDSCH transmission wave beam that base station can be configured into Row grouping.For example, it is assumed that the relevant port CSI-RS of PDSCH transmission wave beam shares M for a terminal, base can be passed through It stands and the M port CSI-RS is divided at least one group.M is positive integer.

Optionally, above-mentioned steps 102 include:

Step 10222, the corresponding reference signal port of PDSCH transmission wave beam is determined.

Here, it is first determined the corresponding reference signal port of PDSCH transmission wave beam is based on the reference signal in order to subsequent Port determines the group of ownership.

Step 10223, according to the grouping information of reference signal port, the corresponding reference of the PDSCH transmission wave beam is determined The group of signal port ownership.

Here, since the grouping information of reference signal port includes at least one group, each group includes at least one Reference signal port, and the reference signal port that each group includes is different, therefore according to the grouping information of reference signal port, It can accurately determine the group of the corresponding reference signal port ownership of PDSCH.

Step 10224, according to the group of the PDSCH transmission wave beam corresponding reference signal port ownership, determine described in The corresponding cache location of PDSCH.

Here, according to the group of the corresponding reference signal port ownership of PDSCH transmission wave beam, determine that PDSCH is corresponding slow Position is deposited, when ensure that the downlink data caching when terminal while when receiving two PDSCH, with identical HARQ process number not It will appear conflict.

For example, it is assumed that base station is configured with the M ends CSI-RS for wave beam management or measurement for it for a terminal Mouthful, M=6.6 ports CSI-RS can be divided into Liang Ge group by base station, group G is { P1, P2, P3 }, group H be P4, P5, P6 }.And grouping information is sent to by terminal by high-level signaling.After terminal receives PDSCH, according to where the PDSCH Wave beam determines the corresponding port CSI-RS of the wave beam, so that it is determined that the corresponding HARQ buffer of PDSCH.

Assuming that terminal can receive two independent PDSCH simultaneously, and two PDSCH have independent HARQ process, and The Serial Number Range of HARQ process is consistent, such as is 1-8.When the data of the identical HARQ process ID of two PDSCH need When re-transmission, the group that terminal belongs to according to the corresponding port CSI-RS of wave beam where two PDSCH transmissions of scheduling is determined The HARQ buffer of PDSCH data buffer storage.

Assuming that the HARQ process ID of PDSCH1 and PDSCH2 is 2.When terminal is not properly received PDSCH1, The corresponding port the CSI-RS P2 of wave beam where terminal needs to be transmitted according to PDSCH1 determines that P2 belongs to group G, and then determining will Data are stored to corresponding HARQ buffer X3, so as on HARQ process2 with the subsequent re-transmission data of PDSCH1 into Row merges.When terminal is not properly received PDSCH2, the corresponding CSI-RS of wave beam where terminal needs to be transmitted according to PDSCH2 Port P5 determines that P5 belongs to group H, and then determination stores data to corresponding HARQ buffer Y3, so as in HARQ Process2 is upper to be merged with the subsequent re-transmission data of PDSCH2.HARQ buffer X3 and HARQ buffer Y3 is mutual Independent storage region.

Certainly, just pass PDSCH transmission wave beam and retransmit PDSCH wave beam can be different, the corresponding port CSI-RS can also be with It is different.As mentioned above it is possible, details are not described herein.

So far, the grouping of the reference signal port used according to the relevant wave beam management of PDCCH transmission beam or measurement is believed Breath, determines the group of the corresponding reference signal port ownership of PDCCH, and then determines the corresponding cache location of PDSCH, ensure that and works as When terminal receives two PDSCH simultaneously, the downlink data with identical HARQ process number is not in conflict when caching, simultaneously It avoids and introduces additional indicating bit instruction HARQ process number in DCI.

In some embodiments of the invention, referring to shown in Fig. 3, a kind of terminal is additionally provided, comprising:

Module 301 is obtained, for obtaining the grouping information of the relevant parameter of downlink transfer；

Determining module 302, for determining PDSCH pairs of Physical Downlink Shared Channel received according to the grouping information The cache location answered.

The terminal of the embodiment of the present invention determines that PDSCH is corresponding slow according to the grouping information of the relevant parameter of downlink transfer Deposit position, it is ensured that when terminal receives two PDSCH simultaneously, when the downlink data with identical HARQ process number caches Be not in conflict, while avoiding and introducing additional indicating bit instruction HARQ process number in DCI.

Optionally, the acquisition module 301 includes:

Optionally, first acquisition submodule includes:

Optionally, the grouping information includes the grouping information of QCL relevant to for dispatching the PDCCH of PDSCH；It is described Determining module 302 includes:

Or

The grouping information includes the grouping information of beam relevant to for dispatching the PDCCH of PDSCH；The determining mould Block 302 includes:

Or

The grouping information includes the grouping information of BPL relevant to for dispatching the PDCCH of PDSCH；The determining mould Block 302 includes:

Optionally, second acquisition submodule includes:

Optionally, the grouping information includes the grouping information of QCL relevant to PDSCH；The determining module 302 is wrapped It includes:

Or

The grouping information includes the grouping information of beam relevant to PDSCH；The determining module 302 includes:

Or

The grouping information includes the grouping information of BPL relevant to PDSCH；The determining module 302 includes:

Optionally, first acquisition submodule includes:

Optionally, the determining module 302 includes:

Optionally, second acquisition submodule includes:

Optionally, the determining module 302 includes:

Optionally, the acquisition module 301 includes:

It should be noted that all implementations are suitable for this in the caching method embodiment of above-mentioned downlink data transmission In the embodiment of terminal, it can also reach same technical effect.

In some embodiments of the invention, referring to shown in Fig. 4, a kind of terminal, including first memory are additionally provided 420, it first processor 400, user interface 430, bus interface and is stored on first memory 420 and can be in first processor The computer program run on 400, the first processor 400 are used to read the program in first memory 420, execute following Process:

Wherein, in Fig. 4, bus architecture may include the bus and bridge of any number of interconnection, specifically by the first processing The various circuits for the memory that the one or more processors and first memory 420 that device 400 represents represent link together.Always Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can also be linked at one by line architecture It rises, these are all it is known in the art, and therefore, it will not be further described herein.Bus interface provides interface.The One processor 400, which is responsible for management bus architecture and common processing, first memory 420, can store first processor 400 and exists Execute used data when operation.For different user equipmenies, user interface 430 can also be being capable of external inscribed needs The interface of equipment, the equipment of connection include but is not limited to keypad, display, loudspeaker, microphone, control stick etc..

Optionally, first processor 400 is also used to read the program in first memory 420, executes following process: obtaining The grouping information of parameter relevant to for dispatching the down control channel PDCCH of PDSCH；Or it obtains relevant to PDSCH The grouping information of parameter；Wherein, the grouping information includes at least one group being grouped to same parameter, Mei Ge little Group includes at least one parameter, and the parameter value for the parameter that different groups include is different.

Optionally, first processor 400 is also used to read the program in first memory 420, executes following process: obtaining Quasi- colocation site QCL relevant to the PDCCH for dispatching PDSCH, wave beam beam or wave beam are to the grouping information for linking BPL.

Optionally, the grouping information includes the grouping information of QCL relevant to for dispatching the PDCCH of PDSCH；First Processor 400 is also used to read the program in first memory 420, executes following process: determining that the PDCCH received is corresponding QCL；According to the grouping information of QCL, the group of the corresponding QCL ownership of the PDCCH is determined；According to the corresponding QCL of the PDCCH The group of ownership determines the corresponding cache location of PDSCH of the PDCCH scheduling；

Or

The grouping information includes the grouping information of beam relevant to for dispatching the PDCCH of PDSCH；First processor 400 are also used to read the program in first memory 420, execute following process: determining the corresponding beam of PDCCH received； According to the grouping information of beam, the group of the corresponding beam ownership of the PDCCH is determined；According to the corresponding beam of the PDCCH The group of ownership determines the corresponding cache location of PDSCH of the PDCCH scheduling；

Or

The grouping information includes the grouping information of BPL relevant to for dispatching the PDCCH of PDSCH；First processor 400 are also used to read the program in first memory 420, execute following process: determining the corresponding BPL of PDCCH received；Root According to the grouping information of BPL, the group of the corresponding BPL ownership of the PDCCH is determined；According to the corresponding BPL ownership of the PDCCH Group determines the corresponding cache location of PDSCH of the PDCCH scheduling；

Optionally, first processor 400 is also used to read the program in first memory 420, executes following process: obtaining The grouping information of QCL, beam or BPL relevant to PDSCH.

Optionally, the grouping information includes the grouping information of QCL relevant to PDSCH；First processor 400 is also used to The program in first memory 420 is read, following process is executed: it is corresponding to obtain the PDSCH carried in Downlink Control Information DCI QCL information；According to the grouping information of QCL, the group of the corresponding QCL ownership of the PDSCH is determined；It is corresponding according to the PDSCH QCL ownership group, determine the corresponding cache location of the PDSCH；

Or

The grouping information includes the grouping information of beam relevant to PDSCH；First processor 400 is also used to read Program in one memory 420 executes following process: obtaining the corresponding beam letter of the PDSCH carried in Downlink Control Information DCI Breath；According to the grouping information of beam, the group of the corresponding beam ownership of the PDSCH is determined；It is corresponding according to the PDSCH The group of beam ownership, determines the corresponding cache location of the PDSCH；

Or

The grouping information includes the grouping information of BPL relevant to PDSCH；First processor 400 is also used to read Program in one memory 420 executes following process: obtaining the corresponding BPL letter of the PDSCH carried in Downlink Control Information DCI Breath；According to the grouping information of BPL, the group of the corresponding BPL ownership of the PDSCH is determined；According to the corresponding BPL of the PDSCH The group of ownership determines the corresponding cache location of the PDSCH；

Optionally, first processor 400 is also used to read the program in first memory 420, executes following process: obtaining The grouping letter for the reference signal port that wave beam management relevant to for dispatching the PDCCH transmission beam of PDSCH or measurement use Breath.

Optionally, first processor 400 is also used to read the program in first memory 420, executes following process: determining The corresponding reference signal port of the PDCCH transmission beam received；According to the grouping information of reference signal port, determine described in The group of the corresponding reference signal port ownership of PDCCH transmission beam；According to the corresponding reference signal of the PDCCH transmission beam The group of port ownership determines the corresponding cache location of PDSCH of the PDCCH scheduling；Wherein, the ginseng of different groups is belonged to It examines signal port and corresponds to different cache locations.

Optionally, first processor 400 is also used to read the program in first memory 420, executes following process: obtaining The grouping information for the reference signal port that wave beam management relevant to PDSCH transmission wave beam or measurement use.

Optionally, first processor 400 is also used to read the program in first memory 420, executes following process: determining The corresponding reference signal port of PDSCH transmission wave beam；According to the grouping information of reference signal port, the PDSCH transmission is determined The group of the corresponding reference signal port ownership of wave beam；According to the corresponding reference signal port ownership of the PDSCH transmission wave beam Group, determine the corresponding cache location of the PDSCH；Wherein, the reference signal port for belonging to different groups is corresponding different Cache location.

Optionally, terminal further includes the first transceiver 410.First processor 400 is also used to read in first memory 420 Program, execute following process: it is relevant to receive the downlink transfer that sends by high-level signaling of base station by the first transceiver 410 The grouping information of parameter.

First transceiver 410 can be multiple element, that is, includes transmitter and transceiver, provide for over a transmission medium The unit communicated with various other devices.

In some embodiments of the invention, a kind of computer readable storage medium is additionally provided, calculating is stored thereon with Machine program, the program perform the steps of when being executed by processor

Optionally, it is also used to perform the steps of acquisition when which is executed by processor and is used to dispatch under PDSCH The grouping information of the relevant parameter of row control channel PDCCH；Or obtain the grouping information of parameter relevant to PDSCH；Wherein, The grouping information includes at least one group being grouped to same parameter, and each group includes at least one parameter, The parameter value for the parameter that different groups include is different.

Optionally, it is also used to perform the steps of acquisition when which is executed by processor and is used to dispatch PDSCH's The grouping information of the relevant quasi- colocation site QCL of PDCCH, wave beam beam or wave beam to link BPL.

Optionally, the grouping information includes the grouping information of QCL relevant to for dispatching the PDCCH of PDSCH；The journey It is also used to perform the steps of the PDCCH corresponding QCL for determining and receiving when sequence is executed by processor；Believed according to the grouping of QCL Breath determines the group of the corresponding QCL ownership of the PDCCH；According to the group of the PDCCH corresponding QCL ownership, determine described in The corresponding cache location of PDSCH of PDCCH scheduling；

Or

The grouping information includes the grouping information of beam relevant to for dispatching the PDCCH of PDSCH；The program is located Reason device is also used to perform the steps of the corresponding beam of PDCCH for determining and receiving when executing；According to the grouping information of beam, Determine the group of the corresponding beam ownership of the PDCCH；According to the group of the PDCCH corresponding beam ownership, determine described in The corresponding cache location of PDSCH of PDCCH scheduling；

Or

The grouping information includes the grouping information of BPL relevant to for dispatching the PDCCH of PDSCH；The program is located Reason device is also used to perform the steps of the corresponding BPL of PDCCH for determining and receiving when executing；According to the grouping information of BPL, really Determine the group of the corresponding BPL ownership of the PDCCH；According to the group of the corresponding BPL ownership of the PDCCH, the PDCCH is determined The corresponding cache location of the PDSCH of scheduling；

Optionally, be also used to perform the steps of when which is executed by processor acquisition QCL relevant to PDSCH, The grouping information of beam or BPL.

Optionally, the grouping information includes the grouping information of QCL relevant to PDSCH；The program is executed by processor When be also used to perform the steps of and obtain the corresponding QCL information of PDSCH that carries in Downlink Control Information DCI；According to QCL's Grouping information determines the group of the corresponding QCL ownership of the PDSCH；According to the group of the corresponding QCL ownership of the PDSCH, really Determine the corresponding cache location of the PDSCH；

Or

The grouping information includes the grouping information of beam relevant to PDSCH；The program is also used when being executed by processor The corresponding beam information of PDSCH that carries in Downlink Control Information DCI is obtained in performing the steps of；According to the grouping of beam Information determines the group of the corresponding beam ownership of the PDSCH；According to the group of the corresponding beam ownership of the PDSCH, determine The corresponding cache location of the PDSCH；

Or

The grouping information includes the grouping information of BPL relevant to PDSCH；The program is also used to when being executed by processor Perform the steps of the corresponding BPL information of PDSCH for obtaining and carrying in Downlink Control Information DCI；According to the grouping information of BPL, Determine the group of the corresponding BPL ownership of the PDSCH；According to the group of the PDSCH corresponding BPL ownership, determine described in The corresponding cache location of PDSCH；

Optionally, it is also used to perform the steps of acquisition when which is executed by processor and is used to dispatch PDSCH's The grouping information for the reference signal port that the relevant wave beam management of PDCCH transmission beam or measurement use.

Optionally, it is also used to perform the steps of the PDCCH transmission wave for determining and receiving when which is executed by processor The corresponding reference signal port of beam；According to the grouping information of reference signal port, the corresponding ginseng of the PDCCH transmission beam is determined Examine the group of signal port ownership；According to the group of the corresponding reference signal port ownership of the PDCCH transmission beam, institute is determined State the corresponding cache location of PDSCH of PDCCH scheduling；Wherein, belong to different groups reference signal port correspond to it is different Cache location.

Optionally, it is also used to perform the steps of acquisition when which is executed by processor related to PDSCH transmission wave beam Wave beam management or the grouping information of reference signal port that uses of measurement.

Optionally, it is corresponding to be also used to perform the steps of determining PDSCH transmission wave beam when which is executed by processor Reference signal port；According to the grouping information of reference signal port, the corresponding reference signal end of the PDSCH transmission wave beam is determined The group of mouth ownership；According to the group of the corresponding reference signal port ownership of the PDSCH transmission wave beam, the PDSCH is determined Corresponding cache location；Wherein, the reference signal port for belonging to different groups corresponds to different cache locations.

Optionally, it is also used to perform the steps of reception base station when which is executed by processor and passes through high-level signaling hair The grouping information of the relevant parameter of the downlink transfer sent.

In some embodiments of the invention, referring to Figure 5, a kind of caching side of downlink data transmission is additionally provided Method, comprising:

Step 501, the relevant parameter of downlink transfer is grouped.

Here, by the way that the relevant parameter of downlink transfer to be grouped, determine that PDSCH's is slow based on grouping information for terminal It deposits position and provides support.

Step 502, grouping information is sent to terminal, so that the terminal, according to the grouping information, determination receives The corresponding cache location of Physical Downlink Shared Channel PDSCH.

Here, it by the way that grouping information is sent to terminal, enables the terminal to according to grouping information, determines and receive The corresponding cache location of PDSCH ensure that when terminal while when receiving two PDSCH, have under identical HARQ process number It is not in conflict when row data buffer storage.

The caching method of the downlink data transmission of the embodiment of the present invention, by being divided the relevant parameter of downlink transfer Group, and grouping information is sent to terminal, the grouping information according to the relevant parameter of downlink transfer is enabled the terminal to, is determined The corresponding cache location of PDSCH, it is ensured that when terminal receives two PDSCH simultaneously, with identical HARQ process number Downlink data is not in conflict when caching, while avoiding and introducing additional indicating bit instruction HARQ process number in DCI.

Optionally, above-mentioned steps 501 include:

Step 5011, parameter relevant to being used to dispatch the down control channel PDCCH of PDSCH is grouped.

Here, by the way that parameter relevant to being used to dispatch the down control channel PDCCH of PDSCH to be grouped, and will Grouping information is sent to terminal, so that terminal can determine PDCCH scheduling based on the grouping information of parameter relevant to PDCCH The corresponding cache location of PDSCH.

Or step 5012, parameter relevant to PDSCH is grouped.

Here, by the way that parameter relevant to PDSCH to be grouped, and grouping information is sent to terminal, so that terminal The corresponding cache location of PDSCH can be determined based on the grouping information of parameter relevant to PDSCH.

Here, a kind of parameter relevant to PDCCH or a kind of parameter relevant with PDSCH are grouped by base station, are obtained To at least one group, each group includes at least one parameter, and the parameter value for the parameter that different groups include is different.

The parameter value for the parameter for including due to different groups is different so that terminal can based on the PDCCH received or It is small accurately to determine that the relevant parameter of the PDCCH received or PDSCH is belonged to for the parameter value of the relevant parameter of PDSCH Group, and then determine the corresponding cache location of PDSCH.

It should be noted that base station will a kind of parameter relevant to PDCCH or PDSCH when being grouped, for one All parameter values of parameter relevant to PDCCH or PDSCH can be grouped by terminal, to avoid due to omitting when grouping Some parameter leads to not determine its corresponding group.

Optionally, above-mentioned steps 5011 include:

Here, by the way that QCL, beam or BPL relevant to the PDCCH for being used to dispatch PDSCH to be grouped, so that eventually End can determine the corresponding cache bit of PDSCH that PDCCH is called based on the grouping information of PDCCH relevant QCL, beam or BPL It sets.

Wherein, QCL, beam or BPL relevant to the PDCCH for being used to dispatch PDSCH can be divided at least one group, Include at least one QCL, beam QCL, beam or BPL parameter that perhaps BPL parameter and different groups include in each group Parameter value be all different.

It is above-mentioned QCL, beam or BPL relevant to the PDCCH for being used to dispatch PDSCH are grouped after, base station is also The PDCCH and PDSCH of scheduling PDSCH can be sent on the corresponding wave beam of PDCCH relevant QCL, beam or BPL.It sends The wave beam of PDCCH and PDSCH corresponding QCL or beam or BPL can be different.

Optionally, above-mentioned steps 5012 include:

QCL, beam or BPL relevant to PDSCH are grouped.

Here, by the way that QCL, beam or BPL relevant to PDSCH to be grouped, so that terminal can be based on PDSCH phase The grouping information of QCL, beam or BPL of pass determine the corresponding cache location of PDSCH.

Wherein, QCL, beam or BPL relevant to PDSCH can be divided at least one group, includes in each group The parameter value of at least one QCL, beam QCL, beam or BPL parameter that perhaps BPL parameter and different group include not phase Together.

It is above-mentioned will be after QCL, beam or BPL relevant to PDSCH be grouped, base station can also be relevant in PDSCH The PDCCH and PDSCH of scheduling PDSCH are sent on the corresponding wave beam of QCL, beam or BPL.Send the wave of PDCCH and PDSCH Beam corresponding QCL or beam or BPL can be different.

Optionally, above-mentioned steps 5011 include:

Here, the ginseng by using wave beam management relevant to being used to dispatch the PDCCH transmission beam of PDSCH or measurement It examines signal port to be grouped, so that terminal can be based on the grouping information of the relevant reference signal port of PDCCH transmission beam, really Determine the corresponding cache location of PDSCH of PDCCH calling.

Wherein, wave beam management relevant to PDCCH transmission beam or the reference signal port that uses of measurement can be divided into Lack a group, includes at least one reference signal port in each group, and the reference signal port that different groups include is equal It is not identical.

Wherein, for a terminal, the relevant all reference signal ports of PDCCH transmission beam that base station can be configured into Row grouping.

The above-mentioned reference for using wave beam management relevant to being used to dispatch the PDCCH transmission beam of PDSCH or measurement is believed After number port is grouped, base station can also be sent on the corresponding wave beam in the relevant reference signal port of PDCCH transmission beam Dispatch the PDCCH and PDSCH of PDSCH.The corresponding reference signal port of wave beam for sending PDCCH and PDSCH can not Together.

Optionally, above-mentioned steps 5012 include:

Here, it is carried out by the reference signal port for using wave beam management relevant to PDSCH transmission wave beam or measurement Grouping, so that terminal can determine that PDSCH is corresponding based on the grouping information of the relevant reference signal port of PDSCH transmission wave beam Cache location.

Wherein, wave beam management relevant to PDSCH transmission wave beam or the reference signal port that uses of measurement can be divided into Lack a group, includes at least one reference signal port in each group, and the reference signal port that different groups include is equal It is not identical.

Wherein, for a terminal, the relevant all reference signal ports of PDSCH transmission wave beam that base station can be configured into Row grouping.

The above-mentioned reference signal port for using wave beam management relevant to PDSCH transmission wave beam or measurement is grouped it Afterwards, base station can also send the PDCCH of scheduling PDSCH on the corresponding wave beam in the relevant reference signal port of PDSCH transmission wave beam And PDSCH.The corresponding reference signal port of wave beam for sending PDCCH and PDSCH can be different.

Optionally, above-mentioned steps 502 include:

Grouping information is sent to terminal by high-level signaling.

Here, grouping information can be sent to terminal by high-level signaling by base station.

Optionally, after above-mentioned steps 501, further includes:

Here, base station can be sent on the corresponding wave beam of the relevant parameter of downlink transfer for dispatch the PDCCH of PDSCH with And PDSCH.

In some embodiments of the invention, referring to shown in Fig. 6, a kind of base station is additionally provided, comprising:

Grouping module 601, for the relevant parameter of downlink transfer to be grouped；

First sending module 602, for grouping information to be sent to terminal, so that the terminal is believed according to the grouping Breath determines the corresponding cache location of Physical Downlink Shared Channel PDSCH received.

The base station of the embodiment of the present invention by the way that the relevant parameter of downlink transfer to be grouped, and grouping information is sent To terminal, the grouping information according to the relevant parameter of downlink transfer is enabled the terminal to, determines the corresponding cache location of PDSCH, It can guarantee go out when the downlink data caching when terminal while when receiving two PDSCH, with identical HARQ process number Now conflict, while avoiding and introducing additional indicating bit instruction HARQ process number in DCI.

Optionally, the grouping module 601 includes:

Second packet submodule, for parameter relevant to PDSCH to be grouped；

Optionally, the first grouping submodule includes:

Optionally, the second packet submodule includes:

Second packet unit, for QCL, beam or BPL relevant to PDSCH to be grouped.

Optionally, the first grouping submodule includes:

Optionally, the second packet submodule includes:

Optionally, first sending module 602 includes:

Optionally, further includes:

It should be noted that wherein all implementations are applicable in the caching method embodiment of above-mentioned downlink data transmission In the embodiment of the base station, it can also reach same technical effect.

In some embodiments of the invention, referring to shown in Fig. 7, a kind of base station, including second memory are additionally provided 720, it second processor 700, the second transceiver 710, bus interface and is stored on second memory 720 and can be in second processing The computer program run on device 700, the second processor 700 is used to read the program in second memory 720, under execution Column process:

The relevant parameter of downlink transfer is grouped；

Grouping information is sent to terminal by the second transceiver 710, so that the terminal is according to the grouping information, really Surely the corresponding cache location of Physical Downlink Shared Channel PDSCH received.

Wherein, in Fig. 7, bus architecture may include the bus and bridge of any number of interconnection, specifically by second processing The various circuits for the memory that the one or more processors and second memory 720 that device 700 represents represent link together.Always Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can also be linked at one by line architecture It rises, these are all it is known in the art, and therefore, it will not be further described herein.Bus interface provides interface.The Two transceivers 710 can be multiple element, that is, include transmitter and transceiver, provide for over a transmission medium with it is various other The unit of device communication.

Second processor 700, which is responsible for management bus architecture and common processing, second memory 720, can store at second Manage the used data when executing operation of device 700.

Optionally, second processor 700 is used to read program in second memory 720, also executes following process: will be with The relevant parameter of down control channel PDCCH for dispatching PDSCH is grouped；Or will parameter relevant to PDSCH into Row grouping；Wherein, the grouping information after grouping includes at least one group being grouped to same parameter, each group's packet Containing at least one parameter, the parameter value for the parameter that different groups include is different.

Optionally, second processor 700 is used to read program in second memory 720, also executes following process: will be with The relevant quasi- colocation site QCL of PDCCH, wave beam beam or wave beam for dispatching PDSCH are grouped link BPL.

Optionally, second processor 700 is used to read program in second memory 720, also executes following process: will be with PDSCH relevant QCL, beam or BPL are grouped.

Optionally, second processor 700 is used to read program in second memory 720, also executes following process: will be with The reference signal port that the relevant wave beam management of PDCCH transmission beam or measurement for dispatching PDSCH use is grouped.

Optionally, second processor 700 is used to read program in second memory 720, also executes following process: will be with The reference signal port that the relevant wave beam management of PDSCH transmission wave beam or measurement use is grouped.

Optionally, second processor 700 is used to read the program in second memory 720, also executes following process: passing through Grouping information is sent to terminal by high-level signaling.

Optionally, second processor 700 is used to read program in second memory 720, also executes following process: will under After the relevant parameter of row transmission is grouped, send on the corresponding wave beam of the relevant parameter of downlink transfer for dispatching The PDCCH and PDSCH of PDSCH.

The relevant parameter of downlink transfer is grouped；

Optionally, also performing the steps of when which is executed by processor will control with the downlink for being used to dispatch PDSCH The relevant parameter of channel PDCCH is grouped；Or parameter relevant to PDSCH is grouped；Wherein, the grouping after grouping Information includes at least one group being grouped to same parameter, and each group includes at least one parameter, different groups The parameter value for the parameter for including is different.

Optionally, also performed the steps of when which is executed by processor by with the PDCCH phase that is used to dispatch PDSCH Quasi- colocation site QCL, wave beam beam or the wave beam closed is grouped link BPL.

Optionally, also perform the steps of when which is executed by processor by QCL, beam relevant to PDSCH or BPL is grouped.

Optionally, also performing the steps of when which is executed by processor will pass with the PDCCH for being used to dispatch PDSCH The reference signal port that the relevant wave beam management of defeated wave beam or measurement use is grouped.

Optionally, it is also performed the steps of when which is executed by processor by wave beam relevant to PDSCH transmission wave beam The reference signal port that management or measurement use is grouped.

Optionally, it also performs the steps of when which is executed by processor and is sent grouping information by high-level signaling To terminal.

Optionally, it is also performed the steps of when which is executed by processor and is divided the relevant parameter of downlink transfer After group, the PDCCH and PDSCH for dispatching PDSCH are sent on the corresponding wave beam of the relevant parameter of downlink transfer.

In various embodiments of the present invention, it should be appreciated that magnitude of the sequence numbers of the above procedures are not meant to execute suitable Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention Process constitutes any restriction.

The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims

1. a kind of caching method of downlink data transmission characterized by comprising

2. caching method according to claim 1, which is characterized in that obtain the grouping information of the relevant parameter of downlink transfer The step of include:

Obtain the grouping information of parameter relevant to PDSCH；

Wherein, the grouping information includes at least one group being grouped to same parameter, and each group includes at least The parameter value of one parameter, the parameter that different groups include is different.

3. caching method according to claim 2, which is characterized in that obtain and believe with the downlink control for dispatching PDSCH The step of grouping information of the relevant parameter of road PDCCH includes:

Quasi- colocation site QCL relevant to for dispatching the PDCCH of PDSCH, wave beam beam or wave beam is obtained to divide BPL is linked Group information.

4. caching method according to claim 3, which is characterized in that the grouping information includes and is used to dispatch PDSCH The relevant QCL of PDCCH grouping information；According to the grouping information, the Physical Downlink Shared Channel PDSCH received is determined The step of corresponding cache location includes:

Determine the corresponding QCL of PDCCH received；

According to the group of the corresponding QCL ownership of the PDCCH, the corresponding cache location of PDSCH of the PDCCH scheduling is determined；

Or

The grouping information includes the grouping information of beam relevant to for dispatching the PDCCH of PDSCH；Believed according to the grouping Breath, the step of determining the Physical Downlink Shared Channel PDSCH that receives corresponding cache location include:

Determine the corresponding beam of PDCCH received；

According to the group of the corresponding beam ownership of the PDCCH, the corresponding cache location of PDSCH of the PDCCH scheduling is determined；

Or

The grouping information includes the grouping information of BPL relevant to for dispatching the PDCCH of PDSCH；Believed according to the grouping Breath, the step of determining the Physical Downlink Shared Channel PDSCH that receives corresponding cache location include:

Determine the corresponding BPL of PDCCH received；

According to the group of the corresponding BPL ownership of the PDCCH, the corresponding cache location of PDSCH of the PDCCH scheduling is determined；

5. caching method according to claim 2, which is characterized in that obtain the grouping information of parameter relevant to PDSCH The step of include:

Obtain the grouping information of QCL, beam or BPL relevant to PDSCH.

6. caching method according to claim 5, which is characterized in that the grouping information includes QCL relevant to PDSCH Grouping information；According to the grouping information, the corresponding cache location of Physical Downlink Shared Channel PDSCH received is determined Step includes:

Or

The grouping information includes the grouping information of beam relevant to PDSCH；It is received according to the grouping information, determination The step of Physical Downlink Shared Channel PDSCH corresponding cache location includes:

Or

The grouping information includes the grouping information of BPL relevant to PDSCH；It is received according to the grouping information, determination The step of Physical Downlink Shared Channel PDSCH corresponding cache location includes:

7. caching method according to claim 2, which is characterized in that obtain and believe with the downlink control for dispatching PDSCH The step of grouping information of the relevant parameter of road PDCCH includes:

Obtain the reference signal port that wave beam management relevant to for dispatching the PDCCH transmission beam of PDSCH or measurement use Grouping information.

8. caching method according to claim 7, which is characterized in that according to the grouping information, determine the object received The step of reason DSCH Downlink Shared Channel PDSCH corresponding cache location includes:

According to the grouping information of reference signal port, the corresponding reference signal port ownership of the PDCCH transmission beam is determined Group；

9. caching method according to claim 2, which is characterized in that obtain the grouping information of parameter relevant to PDSCH The step of include:

10. caching method according to claim 9, which is characterized in that according to the grouping information, determine the object received The step of reason DSCH Downlink Shared Channel PDSCH corresponding cache location includes:

According to the grouping information of reference signal port, the corresponding reference signal port ownership of the PDSCH transmission wave beam is determined Group；

According to the group of the corresponding reference signal port ownership of the PDSCH transmission wave beam, the corresponding caching of the PDSCH is determined Position；

11. caching method according to claim 1, which is characterized in that obtain the grouping letter of the relevant parameter of downlink transfer The step of breath includes:

12. a kind of terminal characterized by comprising

Determining module, for determining the corresponding caching of Physical Downlink Shared Channel PDSCH received according to the grouping information Position.

13. terminal according to claim 12, which is characterized in that the acquisition module includes:

First acquisition submodule, for obtaining the grouping of parameter relevant to for dispatching the down control channel PDCCH of PDSCH Information；Or

14. terminal according to claim 13, which is characterized in that first acquisition submodule includes:

First acquisition unit, for obtain to for dispatch the relevant quasi- colocation site QCL of the PDCCH of PDSCH, wave beam beam or Grouping information of the wave beam to link BPL.

15. terminal according to claim 14, which is characterized in that the grouping information includes and is used to dispatch PDSCH's The grouping information of the relevant QCL of PDCCH；The determining module includes:

First determines grouping submodule, for the grouping information according to QCL, determines the small of the corresponding QCL ownership of the PDCCH Group；

First determines cache sub-module, for the group according to the corresponding QCL ownership of the PDCCH, determines the PDCCH scheduling The corresponding cache location of PDSCH；

Or

The grouping information includes the grouping information of beam relevant to for dispatching the PDCCH of PDSCH；The determining module packet It includes:

Second determines grouping submodule, for the grouping information according to beam, determines the small of the corresponding beam ownership of the PDCCH Group；

Second determines cache sub-module, for the group according to the corresponding beam ownership of the PDCCH, determines the PDCCH tune The corresponding cache location of the PDSCH of degree；

Or

The grouping information includes the grouping information of BPL relevant to for dispatching the PDCCH of PDSCH；The determining module packet It includes:

Third determines grouping submodule, for the grouping information according to BPL, determines the small of the corresponding BPL ownership of the PDCCH Group；

Third determines cache sub-module, for the group according to the corresponding BPL ownership of the PDCCH, determines the PDCCH scheduling The corresponding cache location of PDSCH；

16. terminal according to claim 13, which is characterized in that second acquisition submodule includes:

17. terminal according to claim 16, which is characterized in that the grouping information includes QCL relevant to PDSCH Grouping information；The determining module includes:

4th determines grouping submodule, for the grouping information according to QCL, determines the small of the corresponding QCL ownership of the PDSCH Group；

4th determines cache sub-module, for the group according to the corresponding QCL ownership of the PDSCH, determines that the PDSCH is corresponding Cache location；

Or

5th determines grouping submodule, for the grouping information according to beam, determines the small of the corresponding beam ownership of the PDSCH Group；

5th determines cache sub-module, for the group according to the corresponding beam ownership of the PDSCH, determines described PDSCH pairs The cache location answered；

Or

6th determines grouping submodule, for the grouping information according to BPL, determines the small of the corresponding BPL ownership of the PDSCH Group；

6th determines cache sub-module, for the group according to the corresponding BPL ownership of the PDSCH, determines that the PDSCH is corresponding Cache location；

18. terminal according to claim 13, which is characterized in that first acquisition submodule includes:

Third acquiring unit makes for obtaining wave beam management relevant to for dispatching the PDCCH transmission beam of PDSCH or measurement The grouping information of reference signal port.

19. terminal according to claim 18, which is characterized in that the determining module includes:

7th determines that grouping submodule determines the PDCCH transmission beam pair for the grouping information according to reference signal port The group for the reference signal port ownership answered；

7th determines cache sub-module, the group for being belonged to according to the corresponding reference signal port of the PDCCH transmission beam, Determine the corresponding cache location of PDSCH of the PDCCH scheduling；

20. terminal according to claim 13, which is characterized in that second acquisition submodule includes:

4th acquiring unit, the reference signal end used for obtaining wave beam management relevant to PDSCH transmission wave beam or measurement The grouping information of mouth.

21. terminal according to claim 20, which is characterized in that the determining module includes:

8th determines that grouping submodule determines the PDSCH transmission wave beam pair for the grouping information according to reference signal port The group for the reference signal port ownership answered；

8th determines cache sub-module, the group for being belonged to according to the corresponding reference signal port of the PDSCH transmission wave beam, Determine the corresponding cache location of the PDSCH；

22. terminal according to claim 12, which is characterized in that the acquisition module includes:

Receiving submodule, for receiving the grouping information for the relevant parameter of downlink transfer that base station is sent by high-level signaling.

23. a kind of terminal, including first memory, first processor and storage are on the first memory and can be in first processor The computer program of upper operation, which is characterized in that the first processor is used to read the program in memory, executes following mistake Journey:

24. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor It is performed the steps of when execution

25. a kind of caching method of downlink data transmission characterized by comprising

The relevant parameter of downlink transfer is grouped；

Grouping information is sent to terminal, so that the terminal according to the grouping information, determines that the physical down received is total Enjoy the corresponding cache location of channel PDSCH.

26. caching method according to claim 25, which is characterized in that the relevant parameter of downlink transfer to be grouped Step includes:

Parameter relevant to PDSCH is grouped；

Wherein, the grouping information after grouping includes at least one group being grouped to same parameter, and each group includes The parameter value of at least one parameter, the parameter that different groups include is different.

27. caching method according to claim 26, which is characterized in that believe being controlled with the downlink for being used to dispatch PDSCH Road PDCCH includes: the step of relevant parameter is grouped

Quasi- colocation site QCL relevant to the PDCCH for being used to dispatch PDSCH, wave beam beam or wave beam are divided BPL is linked Group.

28. caching method according to claim 26, which is characterized in that parameter relevant to PDSCH to be grouped Step includes:

QCL, beam or BPL relevant to PDSCH are grouped.

29. caching method according to claim 26, which is characterized in that believe being controlled with the downlink for being used to dispatch PDSCH Road PDCCH includes: the step of relevant parameter is grouped

By wave beam management relevant to being used to dispatch the PDCCH transmission beam of PDSCH or the reference signal port that uses of measurement into Row grouping.

30. caching method according to claim 26, which is characterized in that parameter relevant to PDSCH to be grouped Step includes:

31. caching method according to claim 25, which is characterized in that the step of grouping information is sent to terminal packet It includes:

Grouping information is sent to terminal by high-level signaling.

32. caching method according to claim 25, which is characterized in that the relevant parameter of downlink transfer is grouped it Afterwards, further includes:

33. a kind of base station characterized by comprising

First sending module, for grouping information to be sent to terminal, so that the terminal, according to the grouping information, determination connects The corresponding cache location of Physical Downlink Shared Channel PDSCH received.

34. base station according to claim 33, which is characterized in that the grouping module includes:

First grouping submodule, for being divided parameter relevant to being used to dispatch the down control channel PDCCH of PDSCH Group；Or

Second packet submodule, for parameter relevant to PDSCH to be grouped；

35. base station according to claim 34, which is characterized in that described first, which is grouped submodule, includes:

First grouped element, for by quasi- colocation site QCL relevant to the PDCCH for being used to dispatch PDSCH, wave beam beam or wave Beam is grouped link BPL.

36. base station according to claim 34, which is characterized in that the second packet submodule includes:

Second packet unit, for QCL, beam or BPL relevant to PDSCH to be grouped.

37. base station according to claim 34, which is characterized in that described first, which is grouped submodule, includes:

Third grouped element, for using wave beam management relevant to being used to dispatch the PDCCH transmission beam of PDSCH or measurement Reference signal port be grouped.

38. base station according to claim 34, which is characterized in that the second packet submodule includes:

4th grouped element, the reference signal port for using wave beam management relevant to PDSCH transmission wave beam or measurement It is grouped.

39. base station according to claim 33, which is characterized in that first sending module includes:

40. base station according to claim 33, which is characterized in that further include:

Second sending module, after being grouped the relevant parameter of downlink transfer for the grouping module, in downlink transfer The PDCCH and PDSCH for dispatching PDSCH are sent on the corresponding wave beam of relevant parameter.

41. a kind of base station, including second memory, second processor and it is stored on second memory and can be in second processor The computer program of upper operation, which is characterized in that the second processor is used to read the program in memory, executes following mistake Journey:

The relevant parameter of downlink transfer is grouped；

42. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor It is performed the steps of when execution

The relevant parameter of downlink transfer is grouped；