CN109152006A - A kind of confirmation method and terminal of uplink beam - Google Patents
A kind of confirmation method and terminal of uplink beam Download PDFInfo
- Publication number
- CN109152006A CN109152006A CN201710453998.4A CN201710453998A CN109152006A CN 109152006 A CN109152006 A CN 109152006A CN 201710453998 A CN201710453998 A CN 201710453998A CN 109152006 A CN109152006 A CN 109152006A
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- Prior art keywords
- uplink
- wave beam
- signal
- sends
- terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
Abstract
The invention discloses the determination methods and terminal of a kind of uplink beam, for solving to upload the insecure technical problem of link transmission in the prior art, the described method includes: determining signal to be sent after terminal establishes the initial connection with network by random access；Instruction information of the terminal based on acquisition determines that sending wave beam using the first uplink transmission wave beam or second uplink different from first uplink transmission wave beam sends the signal；Wherein, it is that the uplink that the terminal is obtained when establishing the initial connection sends wave beam that first uplink, which sends wave beam, it is the terminal during collocating uplink link detection reference signal SRS resource that second uplink, which sends wave beam, the uplink transmission wave beam that when the transmissions SRS resource of acquisition uses.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of confirmation methods and terminal of uplink velocity of wave.
Background technique
In view of MIMO (Multiple-Input Multiple-Output, multiple-input, multiple-output) technology for improving peak rate
With the important function of system spectrum utilization rate, LTE (Long Term Evolution, Long Term Evolution)/LTE-A (Long
Term Evolution Advanced, the subsequent evolution of Long Term Evolution) etc. wireless access technologys standard be all with MIMO+
It is built based on OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexing) technology
Come.The performance gain of MIMO technology can be obtained spatial degrees of freedom from multiaerial system, therefore MIMO technology is being marked
A most important evolution tendency in standardization development process is the extension of dimension.
Analog beam figuration and digital-to-analogue mixed-beam figuration require the analog beam shape-endowing weight value at adjustment transmitting-receiving both ends, with
It is enabled to be formed by the opposite end that wave beam is directed at communication.For downlink transfer, need to adjust the wave beam forming of base station side transmission
The received beam shape-endowing weight value of weight and terminal side, and for uplink, need to adjust flanking with base station for terminal side transmission
The beam shape-endowing weight value of receipts.The weight of wave beam forming, which usually passes through, sends training signal acquisition.Down direction, base station send downlink
Wave beam training signal, terminal measure downlink wave beam training signal, select optimal base station and send wave beam, and wave beam is relevant
Information feeds back to base station, and simultaneous selection goes out corresponding optimum reception wave beam, is stored in local.
The UE for having multiple transmitting antennas is able to carry out uplink beam figuration.There are on different types of for cellular wireless system
Downlink signal, including PRACH (Physical Random Access Channel, Physical Random Access Channel), SRS
(Sounding Reference Signal, Sounding Reference Signal), PUCCH (Physical Uplink Control
Channel, uplink control channel) and PUSCH (Physical Uplink Shared Channel, uplink data
Channel) etc., the beamforming operation mode of these uplink signals is different.UE can pass through the SRS in random access procedure
Resource exports the wave beam formed matrix of uplink, generates corresponding SRS wave beam, and carry out uplink by SRS wave beam
The transmission of signal.
Due to that in the prior art, the transmission of uplink signal can only be carried out by SRS wave beam, and UE is only being in
SRS resource configuration is carried out under RRC_CONNECTED mode could obtain SRS wave beam, then, when SRS wave beam is not present or SRS wave
When beam quality difference, it cannot ensure that UE effectively carries out uplink transmission.
So in the prior art, UE, which exists, uploads the insecure technical problem of link transmission.
Summary of the invention
The embodiment of the present invention provides the determination method and terminal of a kind of uplink beam, uploads chain in the prior art for solving
Transmit insecure technical problem in road.
Specific technical solution provided in an embodiment of the present invention is as follows:
After terminal establishes the initial connection with network by random access, signal to be sent is determined；
Instruction information of the terminal based on acquisition determines and sends wave beam or the second uplink using the first uplink
It sends wave beam and sends the signal；
Wherein, it is the uplink that the terminal is obtained when establishing the initial connection that first uplink, which sends wave beam,
Link sends wave beam, and it is the terminal in collocating uplink link detection reference signal SRS that second uplink, which sends wave beam,
In resource process, the uplink that when transmission SRS resource of acquisition uses sends wave beam.
Optionally, when the signal is specially physical accidental access PRACH signal, instruction of the terminal based on acquisition
Information determines and sends wave beam or the second uplink transmission wave beam transmission signal using the first uplink, specifically includes:
The terminal obtains control signal, and the control signal is used to indicate the terminal and sends the PRACH signal；
Type of the terminal based on the control signal, determines and sends wave beam or use using first uplink
Second uplink sends wave beam and sends the PRACH signal.
Optionally, type of the terminal based on the control signal, determines and uses the first uplink send wave
Beam or second uplink send wave beam and send the PRACH signal, specifically include:
The control signal is PDCCH order, and the terminal is sent described in wave beam transmission using first uplink
PRACH signal；
The control signal is control signaling DCI, and the terminal is based on the instruction information field in the control signaling DCI
Instruction, determine using first uplink send wave beam or determine using second uplink send wave beam send
The PRACH signal.
Optionally, when the signal is specially uplink data, instruction information of the terminal based on acquisition is determined
Wave beam is sent using the first uplink or the second uplink sends wave beam and sends the signal, is specifically included:
The terminal determines the indicator SRI of SRS resource；
Whether the terminal judges the SRI when the SRI is used to indicate a SRS resource in the SRS resource
There are uplink schedulings to permit in UL grant, if it has, then using second uplink to send wave beam sends the uplink
Link data；Otherwise wave beam is sent using first uplink send the uplink data.
Optionally, when the signal is specially uplink data, instruction information of the terminal based on acquisition is determined
Wave beam is sent using the first uplink or the second uplink sends wave beam and sends the signal, comprising:
The terminal determines that the indicator SRI, the SRI of SRS resource are used to indicate a SRS in the SRS resource
Resource or instruction PRACH；
If the SRI indicates one SRS resource, sent out using uplink when sending one SRS resource
Wave beam is sent to send the uplink data, wherein uplink when the one SRS resource of the transmission sends wave beam
Wave beam is sent for second uplink；
If the SRI indicates the PRACH, wave beam is sent using first uplink and sends the uplink
Data.
Optionally, when the type of the signal is specially uplink control channel, the instruction information is downlink chain
The instruction of road signal.
Optionally, it when the signal is specially that confirmation message is established in RRC connection, is sent using first uplink
Wave beam sends the RRC connection and establishes confirmation message.
Second aspect, the embodiment of the invention provides a kind of terminals, comprising:
First determining module is determined after establishing the initial connection with network by random access for the terminal
Signal to be sent；
Second determining module, the instruction information for the terminal based on acquisition are determined and are sent using the first uplink
Wave beam or the second uplink send wave beam and send the signal；
Wherein, it is the uplink that the terminal is obtained when establishing the initial connection that first uplink, which sends wave beam,
Link sends wave beam, and it is the terminal in collocating uplink link detection reference signal SRS that second uplink, which sends wave beam,
In resource process, the uplink that when transmission SRS resource of acquisition uses sends wave beam.
Optionally, when the signal is specially physical accidental access PRACH signal, second determining module is specifically used
In:
Control signal is obtained, the control signal is used to indicate the terminal and sends the PRACH signal；
Based on it is described control signal type, determine using first uplink send wave beam or use described second
Uplink sends wave beam and sends the PRACH signal.
Optionally, second determining module is specifically used for:
The control signal is PDCCH order, sends wave beam using first uplink and sends the PRACH letter
Number；
The control signal be control signaling DCI, based in the control signaling DCI instruction information field instruction,
Determine that use first uplink to send wave beam or determine is sent described in wave beam transmission using second uplink
PRACH signal.
Optionally, when the signal is specially uplink data, second determining module is specifically used for:
Determine the indicator SRI of SRS resource；
When the SRI is used to indicate a SRS resource in the SRS resource, judge the SRI with the presence or absence of uplink
In scheduling grant UL grant, if it has, then sending wave beam using second uplink sends the uplink data；
Otherwise wave beam is sent using first uplink send the uplink data.
Optionally, when the signal is specially uplink data, second determining module is specifically used for:
Determine the indicator SRI of SRS resource, the SRS resource or refer to that the SRI is used to indicate in the SRS resource
Show PRACH；
If the SRI indicates one SRS resource, sent out using uplink when sending one SRS resource
Wave beam is sent to send the uplink data, wherein uplink when the one SRS resource of the transmission sends wave beam
Wave beam is sent for second uplink；
If the SRI indicates the PRACH, wave beam is sent using first uplink and sends the uplink
Data.
Optionally, when the type of the signal is specially uplink control channel, the instruction information is downlink chain
The instruction of road signal.
Optionally, when the signal is specially that confirmation message is established in RRC connection, second determining module is specifically used
In:
The wave beam transmission RRC connection, which is sent, using first uplink establishes confirmation message.
Based on the above-mentioned technical proposal, in the embodiment of the present invention, terminal establishes the initial connection with network by random access
Later, signal to be sent is determined；Instruction information of the terminal based on acquisition determines and uses the first uplink send wave
Beam or second uplink different from first uplink transmission wave beam send wave beam and send the signal；Wherein, institute
Stating the first uplink and sending wave beam is that the uplink that the terminal is obtained when establishing the initial connection sends wave beam, institute
Stating the second uplink and sending wave beam is the terminal during collocating uplink link detection reference signal SRS resource, is obtained
The transmission SRS resource when uplink that uses send wave beam, terminal is had when sending uplink signal
Selection uses PRACH wave beam or SRS wave beam, realizes the switching between PRACH wave beam and SRS wave beam, solves existing skill
In art, UE, which exists, uploads the insecure technical problem of link transmission, when SRS wave beam is not present or when SRS beam quality difference, it is ensured that
The reliability of UE uplink.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, embodiment will be described below
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment.
Fig. 1 is a kind of flow chart of the confirmation method of uplink velocity of wave provided in an embodiment of the present invention；
Fig. 2 is a kind of implementation flow chart of step S102 in confirmation method provided in an embodiment of the present invention；
Fig. 3 is another implementation flow chart of step S102 in confirmation method provided in an embodiment of the present invention；
Fig. 4 is another implementation flow chart of step S102 in confirmation method provided in an embodiment of the present invention；
Fig. 5 provides a kind of structural schematic diagram of terminal for the embodiment of the present invention；
Fig. 6 provides the structural schematic diagram of another terminal for the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution of the present invention is clearly and completely described, it is clear that described embodiment is skill of the present invention
A part of the embodiment of art scheme, instead of all the embodiments.Based on the embodiment recorded in file of the present invention, this field is general
Logical technical staff every other embodiment obtained without creative efforts, belongs to the technology of the present invention side
The range of case protection.
In the embodiment of the present invention, as shown in Figure 1, the determination process of uplink beam is as follows:
Step S101: after terminal establishes the initial connection with network by random access, signal to be sent is determined；
Step S102: instruction information of the terminal based on acquisition determines and sends wave beam or the using the first uplink
Two uplinks send wave beam and send the signal；
Wherein, it is the uplink that the terminal is obtained when establishing the initial connection that first uplink, which sends wave beam,
Link sends wave beam, and it is the terminal in collocating uplink link detection reference signal SRS that second uplink, which sends wave beam,
In resource process, the uplink that when transmission SRS resource of acquisition uses sends wave beam.
In the specific implementation process, terminal be first carried out above-mentioned steps S101 namely terminal by random access establish with
After the initial connection of network, signal to be sent is determined.
In practical applications, there are different types of uplink signals for cellular wireless system, equipped with multiple transmitting days
The terminal of line needs to be implemented random access procedure before emitting uplink signal to establish the initial connection with network, with
Machine access is carried out based on PRACH, and Physical Random Access Channel PRACH is known as msg1 here.
In the random access procedure, terminal scans first obtains TRP (Transfer Receive Points, transfer point)
The SS (synchronizing signal, synchronization signal) of transmission, the downlink that terminal obtains SS from SS send wave beam, if
Terminal has wave beam reciprocity with DL/UL wave beam corresponding relationship namely uplink and downlink wave beam, then, terminal can be obtained with SS's
Downlink sends the corresponding uplink of wave beam and sends wave beam, and referred to as the first uplink sends wave beam.
If terminal does not have DL/UL wave beam corresponding relationship, it is more that terminal must use different uplink beams to send
A msg1 message, is preferably directed to different directions.In other words, the transmission of msg1 must rely on beam scanning.TRP will be attempted
Independently the msg1 on each wave beam is decoded.If TRP is successfully received a msg1 on a uplink beam,
It addresses the address signal of the msg1 by sending, and the corresponding physical resource of the address signal is related to the physical resource of the msg1
Connection, therefore, from the decoding of the address signal, msg1 can be successfully decoded in terminal by TRP, and based on the msg1 being successfully decoded
It is inferred to best uplink and sends the uplink transmission wave beam that wave beam namely best uplink transmission wave beam are the msg1 being successfully decoded.This
When, it is exactly that the above-mentioned best uplink being inferred to sends wave beam that terminal, which obtains the first uplink and sends wave beam,.
In practical applications, above-mentioned first uplink that terminal obtains during establishing the initial connection with network is sent out
Wave beam is sent to be also known as PRACH wave beam.
Terminal can be used the first uplink and send UL Tx wave beam of the wave beam as msg1, TRP in initial connection
Msg1 is measured with estimating uplink timing advance value TA.Then, TRP sends msg2 in the downlink to indicate to terminal
TA.Decoding terminals msg2, according to the scheduling information carried in msg2, including time/frequency resource, order of modulation, encoding rate and
TA value etc., sends msg3 in the uplink.Terminal sends the UE ID of itself in msg3.Msg3 is successfully decoded in TRP, to end
End sends downlink acknowledgement signal msg4, and Msg4 includes the UE ID sent with msg3, at this point, terminal and the random of network connect
Enter process success namely terminal is completed and the initial connection of network.
After terminal is completed to be initially accessed, it is that terminal establishes RRC connection that TRP, which can continue to use RRC configuration message,.For
The DL control signal and RRC configuration message itself of scheduling RRC configuration message use DL Tx wave beam identical with SS signal to carry out wave
Beam figuration, terminal is successfully decoded RRC configuration message, then sends RRC connection to TRP and establish confirmation signal, at this point, terminal enters
RRC_CONNECTED mode.
TRP can be configured with multiple UE- for uplink beam management for the terminal in RRC_CONNECTED state
The uplink sounding reference signal SRS resource of specific.Each SRS resource carries out wave with specific wave beam formed matrix
Beam figuration.Terminal sends multiple SRS resources in the uplink.TRP measures the signal quality of different SRS resources, and selects excellent
The SRS resource (one or more SRS resources) of choosing.TRP sends the index (SRS resource indicator SRI) of preferred SRS resource
To terminal.So, terminal obtains the uplink transmission wave beam namely second for sending the preferred SRS resource according to SRI
Uplink sends wave beam.
In practical applications, terminal obtains above-mentioned second uplink transmission wave beam during configuring SRS resource and is also known as
For SRS wave beam.
In practical applications, it includes PRACH, PUCCH and PUSCH etc. that terminal, which needs the uplink signal that emits, then,
After terminal establishes the initial connection with network by random access, it is necessary to determine the uplink signal for needing to send
Which is, specifically, terminal will confirm the signal when the uplink signal for needing to send is PRACH signal, so as to
The uplink that selection sends the signal sends wave beam；When the uplink signal for needing to send is PUCCH signal, terminal will be true
The signal is recognized to select the uplink for sending the signal to send wave beam etc..
After executing completion step S101, the method in the embodiment of the present invention just executes step S102, it may be assumed that the terminal
Instruction information based on acquisition is determined and is sent described in wave beam or the transmission wave beam transmission of the second uplink using the first uplink
Signal.
Specifically, referring to FIG. 2, in embodiments of the present invention, when terminal determines the uplink signal for needing to send
When accessing PRACH signal for physical accidental, step S102 is specifically included:
Step S201: obtaining control signal, and the control signal is used to indicate the terminal and sends the PRACH signal；
Step S202: type of the terminal based on the control signal is determined and is sent using first uplink
Wave beam sends the wave beam transmission PRACH signal using second uplink.
In concrete practice, when terminal enters RRC_CONNECTED state, start timing advance timer, if
Terminal not yet sends any uplink signal when TA timer expires, it may be considered that terminal is initially accessed above-mentioned with network
TA value obtained in process is no longer valid, and when DL data reach TRP, TRP must re-establish new TA value, at this moment, terminal
The control signal for being used to indicate terminal and retransmitting PRACH signal sent from TRP will be obtained, then, terminal will root
According to the type of the control signal received, determination is to retransmit PRACH signal using PRACH wave beam or using SRS wave beam.
In practical applications, step S202 can also be executed in the following way:
Step A: the control signal is PDCCH order, and the terminal sends wave beam using first uplink and sends out
Send the PRACH signal；
That is, the control signal for being used to indicate terminal retransmission PRACH signal that TRP is sent is specially PDCCH order,
Terminal just will use PRACH wave beam to send PRACH signal, to redefine TA after receiving the PDCCH order.
Step B: the control signal is control signaling DCI, and the terminal is believed based on the instruction in the control signaling DCI
The instruction of field is ceased, determines that using first uplink to send wave beam or determine uses the second uplink send wave
Beam sends the PRACH signal.
That is, when the TRP control signal for being used to indicate terminal retransmission PRACH signal sent is specially control signaling
DCI, control signaling DCI include instruction information field, the instruction information field instruction terminal be using PRACH wave beam or
SRS wave beam sends PRACH signal, then, when terminal receives control signaling DCI, so that it may according to control signaling DCI's
Instruction is selected, for example, in the control signaling DCI instruction information field instruction terminal be using PRACH wave beam, then, eventually
End just will use PRACH wave beam and send PRACH signal；When instruction information field instruction terminal uses SRS wave in control signaling DCI
Beam, then, terminal just will use SRS wave beam and send PRACH signal.
Specifically, referring to FIG. 3, in embodiments of the present invention, when terminal determines the uplink signal for needing to send
When for uplink data, step S102 is specifically included:
Step S301: the terminal determines the indicator SRI of SRS resource；
Step S302: the terminal judges institute when the SRI is used to indicate a SRS resource in the SRS resource
SRI is stated with the presence or absence of in uplink scheduling license UL grant, is sent if it has, then sending wave beam using second uplink
The uplink data；Otherwise wave beam is sent using first uplink send the uplink data.
In practical applications, indicator SRI can serve to indicate that a SRS resource in multiple SRS resources, can also use
The signaling of a SRS resource or instruction PRACH, that is, SRS wave beam or PRACH wave beam in the multiple SRS resources of instruction is compiled by joint
Code, specifically, terminal is in RRC_CONNECTED shape when indicator SRI is used to indicate a SRS resource in multiple SRS resources
Being configured to detect SRI namely terminal in uplink scheduling license UL grant under state can go to judge indicator SRI with the presence or absence of upper
In row scheduling grant UL grant, during concrete practice, SRI there may be or may be not present in ULgrant, if
Terminal judges that SRI is present in UL grant, then terminal sends uplink using the SRS wave beam of the SRS resource indicated by SRI
Link data；If terminal judges that SRI is not present in ULgrant, terminal just will use PRACH wave beam and send uplink
Link data.
Certainly, in practical applications, SRI is also possible to be present in always in UL grant, at this moment, if a terminal detects that
UL grant, then terminal is sent using the SRS wave beam of SRS resource indicated by SRI.If terminal does not detect any UL
Grant then carries out the transmission of PUSCH data using PRACH wave beam.
Specifically, referring to FIG. 4, being used to indicate a SRS resource or instruction in multiple SRS resources in indicator SRI
When the signaling of PRACH, that is, SRS wave beam or PRACH wave beam is jointly encoded, step S102 also may include:
Step S401: the terminal determines that the indicator SRI of SRS resource, the SRI are used to indicate in the SRS resource
A SRS resource or instruction PRACH；
Step S402: upper when using the one SRS resource of transmission if the SRI indicates one SRS resource
Line link sends wave beam and sends the uplink data, wherein uplink hair when the one SRS resource of the transmission
Sending wave beam is that second uplink sends wave beam；
Step S403: if the SRI indicates the PRACH, wave beam is sent using first uplink and sends institute
State uplink data.
When a SRI SRS resource being used to indicate in multiple SRS resources or indicate PRACH namely SRS wave beam or PRACH
When the signaling of wave beam is jointly encoded, terminal will go to judge that SRI is specifically indicated to be a SRS resource in multiple SRS resources,
Or PRACH, if that SRI instruction is PRACH, then, terminal will use PRACH wave beam just to send uplink data, if
What RI was indicated is a SRS resource in a SRS resource, then, terminal just will use the SRS wave of that SRS resource of instruction
Beam sends uplink data.
For example, 8 states are just had when SRI is 3 bits, wherein assume the corresponding PRACH wave beam of state ' 000 ', ' 001 '
~' 111 ' corresponding SRS wave beams, and assume ' 001 ' the corresponding SRS wave beam for sending SRS resource 0 and using, ' 001 ' corresponding transmission SRS
The SRS wave beam that resource 0 uses, ' 010 ' the corresponding SRS wave beam for sending SRS resource 1 and using, ' 011 ' the corresponding SRS resource 2 that sends make
SRS wave beam, ' 100 ' the corresponding SRS wave beams for sending SRS resource 3 and using, ' 101 ' the corresponding SRS for sending SRS resource 4 and using
Wave beam, ' 110 ' the corresponding SRS wave beams for sending SRS resource 5 and using, ' 111 ' the corresponding SRS wave beams for sending SRS resource 6 and using, that
, when SRI is specially ' 000 ', then that SRI instruction is exactly PRACH, then terminal will use PRACH wave beam just to send uplink
Link data；When SRI is specially ' 010 ', then what SRI was indicated is exactly the SRS wave beam that SRS resource 1 uses, then terminal will make
The SRS wave beam that is used with SRS resource 1 sends uplink data；When SRI is specially ' 110 ', then that SRI instruction is exactly SRS
The SRS wave beam that resource 5 uses, then terminal will use the SRS wave beam that SRS resource 5 uses just to send uplink data etc..
Specifically, in embodiments of the present invention, when terminal determines that the uplink signal for needing to send is uplink
When control channel, then, TRP will be selection PRACH wave beam or selection SRS wave by down link signal, instruction terminal
Beam, certainly, in actually answering, which can be higher level signal or dynamic (physical layer) signal, not do herein
Limitation, specifically, working as down link signal, instruction terminal selects PRACH wave beam, then, terminal just will use PRACH wave beam
Send uplink control channel；Work as down link signal, instruction terminal selects SRS wave beam, then, terminal just will use SRS
Wave beam sends uplink control channel.
Specifically, in embodiments of the present invention, when terminal determines that needing the uplink signal sent is that RRC connection is built
When vertical confirmation message, since terminal has just completed the random access with network at this time, TRP sends RRC to terminal and configures message, configuration
Terminal-specific RRC resource is for communicating the future between terminal and TRP.RRC configuration message is successfully decoded in terminal, then terminal needs
RRC connection is sent to TRP establish confirmation.And at this point, terminal has not been entered into RRC_CONNECTED state, SRS not can be carried out
Resource distribution cannot also obtain corresponding SRS wave beam, so, at this point, terminal, can only just use initial access process
The PRACH wave beam of middle acquisition sends RRC connection and establishes confirmation message.
So terminal of the present invention can selectively use PRACH when sending uplink signal by the above method
Wave beam or SRS wave beam, realize the switching between PRACH wave beam and SRS wave beam, solve in the prior art, and UE, which exists, to be uploaded
The insecure technical problem of link transmission, when SRS wave beam is not present or when SRS beam quality difference, it is ensured that UE uplink
Reliability.
Based on the same inventive concept, a kind of terminal is provided in the embodiment of the present invention, the specific implementation of the terminal can be found in
The description of embodiment of the method part, overlaps will not be repeated, as shown in figure 5, the terminal specifically includes that
First determining module 11 after establishing the initial connection with network by random access for the terminal, determines
Signal to be sent out；
Second determining module 12, the instruction information for the terminal based on acquisition are determined and are sent out using the first uplink
It send wave beam or sends wave beam with the second uplink and send the signal；
Wherein, it is the uplink that the terminal is obtained when establishing the initial connection that first uplink, which sends wave beam,
Link sends wave beam, and it is the terminal in collocating uplink link detection reference signal SRS that second uplink, which sends wave beam,
In resource process, the uplink that when transmission SRS resource of acquisition uses sends wave beam.
Optionally, when the signal is specially physical accidental access PRACH signal, second determining module 12 is specific
For:
Control signal is obtained, the control signal is used to indicate the terminal and sends the PRACH signal；
Based on it is described control signal type, determine using first uplink send wave beam or use described second
Uplink sends wave beam and sends the PRACH signal.
Optionally, second determining module 12 is specifically used for:
The control signal is PDCCH order, sends wave beam using first uplink and sends the PRACH letter
Number；
The control signal be control signaling DCI, based in the control signaling DCI instruction information field instruction,
Determine that use first uplink to send wave beam or determine is sent described in wave beam transmission using second uplink
PRACH signal.
Optionally, when the signal is specially uplink data, second determining module 12 is specifically used for:
Determine the indicator SRI of SRS resource；
When the SRI is used to indicate a SRS resource in the SRS resource, judge the SRI with the presence or absence of uplink
In scheduling grant UL grant, if it has, then sending wave beam using second uplink sends the uplink data；
Otherwise wave beam is sent using first uplink send the uplink data.
Optionally, when the signal is specially uplink data, second determining module 12 is specifically used for:
Determine the indicator SRI of SRS resource, the SRS resource or refer to that the SRI is used to indicate in the SRS resource
Show PRACH；
If the SRI indicates one SRS resource, sent out using uplink when sending one SRS resource
Wave beam is sent to send the uplink data, wherein uplink when the one SRS resource of the transmission sends wave beam
Wave beam is sent for second uplink；
If the SRI indicates the PRACH, wave beam is sent using first uplink and sends the uplink
Data.
Optionally, when the type of the signal is specially uplink channel, the instruction information is downlink control
The instruction of signal processed.
Optionally, when the signal is specially that confirmation message is established in RRC connection, second determining module has 12 bodies and uses
In: the wave beam transmission RRC connection, which is sent, using first uplink establishes confirmation message.
Based on the same inventive concept, the embodiment of the invention provides a kind of terminal, the specific implementation sides of can be found in of the terminal
The description of method embodiment part, overlaps will not be repeated, as shown in fig. 6, the terminal mainly includes processor 21, memory 22
With transceiver 23, wherein transceiver 23 sends and receivees data under the control of processor 21, preserves in memory 22 default
Program, processor 21 read memory 22 in program, according to the program execute following procedure:
After terminal establishes the initial connection with network by random access, signal to be sent is determined；
Instruction information of the terminal based on acquisition determines and sends wave beam or the second uplink using the first uplink
It sends wave beam and sends the signal；
Wherein, it is the uplink that the terminal is obtained when establishing the initial connection that first uplink, which sends wave beam,
Link sends wave beam, and it is the terminal in collocating uplink link detection reference signal SRS that second uplink, which sends wave beam,
In resource process, the uplink that when transmission SRS resource of acquisition uses sends wave beam.
Optionally, when the signal is specially physical accidental access PRACH signal, instruction of the terminal based on acquisition
Information determines and sends wave beam or the second uplink transmission wave beam transmission signal using the first uplink, specifically includes:
The terminal obtains control signal, and the control signal is used to indicate the terminal and sends the PRACH signal；
Type of the terminal based on the control signal, determines and sends wave beam or use using first uplink
Second uplink sends wave beam and sends the PRACH signal.
Optionally, type of the terminal based on the control signal, determines and uses the first uplink send wave
Beam or second uplink send wave beam and send the PRACH signal, specifically include:
The control signal is PDCCH order, and the terminal is sent described in wave beam transmission using first uplink
PRACH signal；
The control signal is control signaling DCI, and the terminal is based on the instruction information field in the control signaling DCI
Instruction, determine using first uplink send wave beam or determine using second uplink send wave beam send
The PRACH signal.
Optionally, when the signal is specially uplink data, instruction information of the terminal based on acquisition is determined
Wave beam is sent using the first uplink or the second uplink sends wave beam and sends the signal, is specifically included:
The terminal determines the indicator SRI of SRS resource；
Whether the terminal judges the SRI when the SRI is used to indicate a SRS resource in the SRS resource
There are uplink schedulings to permit in UL grant, if it has, then using second uplink to send wave beam sends the uplink
Link data；Otherwise wave beam is sent using first uplink send the uplink data.
Optionally, when the signal is specially uplink data, instruction information of the terminal based on acquisition is determined
Wave beam is sent using the first uplink or the second uplink sends wave beam and sends the signal, comprising:
The terminal determines that the indicator SRI, the SRI of SRS resource are used to indicate a SRS in the SRS resource
Resource or instruction PRACH；
If the SRI indicates one SRS resource, sent out using uplink when sending one SRS resource
Wave beam is sent to send the uplink data, wherein uplink when the one SRS resource of the transmission sends wave beam
Wave beam is sent for second uplink；
If the SRI indicates the PRACH, wave beam is sent using first uplink and sends the uplink
Data.
Optionally, when the type of the signal is specially uplink control channel, the instruction information is downlink chain
The instruction of road signal.
Optionally, it when the signal is specially that confirmation message is established in RRC connection, is sent using first uplink
Wave beam sends the RRC connection and establishes confirmation message.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (14)
1. a kind of determination method of uplink beam characterized by comprising
After terminal establishes the initial connection with network by random access, signal to be sent is determined；
Instruction information of the terminal based on acquisition determines and sends wave beam or the transmission of the second uplink using the first uplink
Wave beam sends the signal；
Wherein, it is the uplink that the terminal is obtained when establishing the initial connection that first uplink, which sends wave beam,
Wave beam is sent, it is the terminal in collocating uplink link detection reference signal SRS resource that second uplink, which sends wave beam,
In the process, the uplink used when the transmission SRS resource of acquisition sends wave beam.
2. the method as described in claim 1, which is characterized in that the signal be specially physical accidental access PRACH signal
When, instruction information of the terminal based on acquisition determines and sends wave beam or the transmission of the second uplink using the first uplink
Wave beam sends the signal, specifically includes:
The terminal obtains control signal, and the control signal is used to indicate the terminal and sends the PRACH signal；
Type of the terminal based on the control signal, is determined and is sent described in wave beam or use using first uplink
Second uplink sends wave beam and sends the PRACH signal.
3. method according to claim 2, which is characterized in that type of the terminal based on the control signal, determination make
Wave beam is sent with first uplink or second uplink sends wave beam and sends the PRACH signal, it is specific to wrap
It includes:
The control signal is PDCCH order, and the terminal sends wave beam using first uplink and sends the PRACH
Signal；
The control signal is control signaling DCI, finger of the terminal based on the instruction information field in the control signaling DCI
Show, determines that use first uplink to send wave beam or determine is sent described in wave beam transmission using second uplink
PRACH signal.
4. the method as described in claim 1, which is characterized in that when the signal is specially uplink data, the end
End group determines in the instruction information of acquisition and sends wave beam or the second uplink transmission wave beam transmission institute using the first uplink
Signal is stated, is specifically included:
The terminal determines the indicator SRI of SRS resource；
The terminal judges that the SRI whether there is when the SRI is used to indicate a SRS resource in the SRS resource
Uplink scheduling is permitted in UL grant, if it has, then sending wave beam using second uplink sends the uplink
Data；Otherwise wave beam is sent using first uplink send the uplink data.
5. the method as described in claim 1, which is characterized in that when the signal is specially uplink data, the end
End group determines in the instruction information of acquisition and sends wave beam or the second uplink transmission wave beam transmission institute using the first uplink
State signal, comprising:
The terminal determines that the indicator SRI, the SRI of SRS resource are used to indicate a SRS resource in the SRS resource
Or instruction PRACH；
Uplink send wave if the SRI indicates one SRS resource, when using the one SRS resource of transmission
Beam sends the uplink data, wherein it is institute that uplink when the one SRS resource of the transmission, which sends wave beam,
It states the second uplink and sends wave beam；
If the SRI indicates the PRACH, wave beam is sent using first uplink and sends the uplink number
According to.
6. the method as described in claim 1, which is characterized in that in the type of the signal be specially uplink control channel
When, the instruction information is the instruction of down link signal.
7. the method as described in claim 1, which is characterized in that when the signal is specially that confirmation message is established in RRC connection,
The wave beam transmission RRC connection, which is sent, using first uplink establishes confirmation message.
8. a kind of terminal characterized by comprising
First determining module is determined pending after establishing the initial connection with network by random access for the terminal
The signal sent；
Second determining module, the instruction information for the terminal based on acquisition determine and send wave beam using the first uplink
Or second uplink send wave beam and send the signal；
Wherein, it is the uplink that the terminal is obtained when establishing the initial connection that first uplink, which sends wave beam,
Wave beam is sent, it is the terminal in collocating uplink link detection reference signal SRS resource that second uplink, which sends wave beam,
In the process, the uplink used when the transmission SRS resource of acquisition sends wave beam.
9. terminal as claimed in claim 8, which is characterized in that the signal be specially physical accidental access PRACH signal
When, second determining module is specifically used for:
Control signal is obtained, the control signal is used to indicate the terminal and sends the PRACH signal；
Based on the type of the control signal, determines and send wave beam using first uplink or use second uplink
Link sends wave beam and sends the PRACH signal.
10. terminal as claimed in claim 9, which is characterized in that second determining module is specifically used for:
The control signal is PDCCH order, sends wave beam using first uplink and sends the PRACH signal；
The control signal is control signaling DCI, based on the instruction of the instruction information field in the control signaling DCI, is determined
Wave beam is sent using first uplink or determines that sending the wave beam transmission PRACH using second uplink believes
Number.
11. terminal as claimed in claim 8, which is characterized in that when the signal is specially uplink data, described
Two determining modules are specifically used for:
Determine the indicator SRI of SRS resource；
When the SRI is used to indicate a SRS resource in the SRS resource, judge the SRI with the presence or absence of uplink scheduling
Permit in UL grant, if it has, then sending wave beam using second uplink sends the uplink data；Otherwise
Wave beam, which is sent, using first uplink sends the uplink data.
12. terminal as claimed in claim 8, which is characterized in that when the signal is specially uplink data, described
Two determining modules are specifically used for:
Determine that the indicator SRI, the SRI of SRS resource are used to indicate a SRS resource or instruction in the SRS resource
PRACH；
Uplink send wave if the SRI indicates one SRS resource, when using the one SRS resource of transmission
Beam sends the uplink data, wherein it is institute that uplink when the one SRS resource of the transmission, which sends wave beam,
It states the second uplink and sends wave beam；
If the SRI indicates the PRACH, wave beam is sent using first uplink and sends the uplink number
According to.
13. terminal as claimed in claim 8, which is characterized in that the type of the signal be specially uplink control letter
When road, the instruction information is the instruction of down link signal.
14. terminal as claimed in claim 8, which is characterized in that in the signal be specially that confirmation message is established in RRC connection
When, second determining module is specifically used for:
The wave beam transmission RRC connection, which is sent, using first uplink establishes confirmation message.
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| CN201710453998.4A CN109152006B (en) | 2017-06-15 | 2017-06-15 | Uplink beam confirmation method and terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710453998.4A CN109152006B (en) | 2017-06-15 | 2017-06-15 | Uplink beam confirmation method and terminal |
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| CN109152006B CN109152006B (en) | 2021-06-18 |
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| WO2023197332A1 (en) * | 2022-04-15 | 2023-10-19 | 北京小米移动软件有限公司 | Beam indication method/apparatus, device, and storage medium |
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| CN109152006B (en) | 2021-06-18 |
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