CN107872888A - A kind of method and device of down control channel transmission - Google Patents
A kind of method and device of down control channel transmission Download PDFInfo
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- CN107872888A CN107872888A CN201610862607.XA CN201610862607A CN107872888A CN 107872888 A CN107872888 A CN 107872888A CN 201610862607 A CN201610862607 A CN 201610862607A CN 107872888 A CN107872888 A CN 107872888A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000011664 signaling Effects 0.000 claims abstract description 17
- 238000013459 approach Methods 0.000 claims description 13
- 238000006116 polymerization reaction Methods 0.000 claims description 12
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000004087 circulation Effects 0.000 claims description 2
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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
- H04W72/0446—Resources in time domain, e.g. slots or frames
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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
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
- H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
- H04W74/085—Random access procedures, e.g. with 4-step access with collision treatment collision avoidance
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Abstract
The invention discloses a kind of method and device of down control channel transmission.This method includes：Mobile terminal UE synchronizes according to the synchronizing information that base station is sent and the base station；The UE reception systems broadcast message；The UE selects a Preamble sequence to initiate Stochastic accessing to base station in corresponding PRACH resources from the available PRACH resource pools of cell where this UE at random；The radio resource control RRC message that the base station is sent simultaneously when sending contention resolution message configures Physical Downlink Control Channel NR PDCCH resource information to access the UE.It is transmitted so as to realize that the NR PDCCH of different user can dynamically occupy different physical resources, not only increases the flexibility of transmission, and improve resource utilization；And NR PDCCH resource allocation information is configured by RRC signaling, auxiliary UE carries out blind check, reduces the complexity of UE blind checks.
Description
Technical field
The present embodiments relate to the technical field of communication, more particularly to the method and dress of a kind of transmission of down control channel
Put.
Background technology
No matter in 4G or 5G communication systems, down control channel is required for send necessary Downlink Control Information,
For aiding in UE to carry out Stochastic accessing, up-downgoing data transfer and Power Control etc..3 typical descending controls defined in LTE
Channel processed：Physical Control Format Indicator Channel (the Physical of OFDM symbol number is taken for PDCCH in indicating cell
Control Format Indicator Channel, PCFICH), for transmit upstream data confirm feedback information physics mix
Close automatic repeat request instruction channel (Physical Hybrid-ARQ Indicator Channel) and bearing downlink control letter
Cease Physical Downlink Control Channel (the Physical Downlink of (Downlink Control Information, DCI)
Control Channel, PDCCH).
The concept of Enhanced PDCCH (EPDCCH) channel is introduced in the LTE-A versions of Release 10, enters one
Step extends PDCCH capacity.Wherein PCFICH, PHICH and PDCCH fix the preceding several OFDM symbols for occupying each time slot,
UE is based on cell reference signals (Cell-specific Reference Signal, CRS) and carries out blind check, and limits PDCCH only
It can use and broadcast channel identical multiple antennas delivery plan, i.e., single-ended port transmission or hair diversity scheme.EPDCCH takes thing
Reason DSCH Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) resource is transmitted, it is allowed to using UE
Specific multiple antennas scheme carries out data transmission, and is based on demodulated reference signal (Demodulation Reference
Signal, DMRS) it is demodulated.
In order to promote the standardization of 5G technologies, 3GPP has passed through in the 71st plenary session newly to eat dishes without rice or wine (New on 5G
Radio, NR) SI project verification, indicate comprehensive development of 5G standardized processes.And discussed in the 85th group meetings of RAN1 logical
The control channel design crossed under multi-beam transmission to be considered.
PDCCH channels in LTE are demodulated based on CRS, can not use advanced multiple antennas scheme.And may in NR
The reference signal similar to CRS is there will be no, and the small bandwidth service largely to happen suddenly is had in NR, directly according to PDCCH
Method construct down control channel compare waste of resource and also lack flexibility.EPDCCH channels are solved based on DMRS
Adjust, it is allowed to advanced multiple antennas scheme is used, but EPDCCH channels can only transmit the specific downlink control messages of UE, simultaneously
The false dismissal probability that the decoding for being still strongly depend on PDCCH channels is successfully decoded, adds EPDCCH channels of EPDCCH channels.
The content of the invention
The purpose of the embodiment of the present invention is to propose a kind of method and device of down control channel transmission, it is intended to solves such as
The running time-frequency resource what is occupied by RRC signaling flexible configuration NR-PDCCH channels.
To use following technical scheme up to this purpose, the embodiment of the present invention：
In a first aspect, a kind of method of down control channel transmission, methods described include：
Mobile terminal UE synchronizes according to the synchronizing information that base station is sent and the base station；
The UE reception systems broadcast message, the system broadcast message include Physical Random Access Channel PRACH resources；
The physical resource positional information of accidental access response and contention resolution message corresponding to different PRACH resources；
The UE selects a Preamble sequence corresponding from the available PRACH resource pools of cell where this UE at random
PRACH resources on to base station initiate Stochastic accessing；
The base station is received after the Preamble sequences in accidental access response corresponding to the PRACH resources and competing
Accidental access response and contention resolution message corresponding to sending are striven in the physical resource positional information for solving message, and is rushed sending
Radio resource control RRC message, which is sent, while prominent solution message configures Physical Downlink Control Channel NR- to access the UE
PDCCH resource information, wherein, the NR-PDCCH channels include the specific search space USS of public search space CSS and UE, institute
CSS is stated to be used to send public control class message；The USS is used to send the specific downlink control message DCI of UE.
Preferably, methods described also includes：
The base station sends the CSS and USS by the way of default individual transmission and uniform transmission to the UE.
Preferably, the base station sends the CSS by the way of default individual transmission to the UE, including：
The CSS of all users of cell where the base station configures described UE takes each subframe or per several son
The top n OFDM symbol of frame, the CSS of different user can be multiplexed in time-domain or frequency domain；
The base station sends the CSS using omnidirectional's mode or open loop approach to the UE, and omnidirectional's mode includes hair
Diversity and single-ended port transmission, the open loop approach include beam scanning.
Preferably, the base station sends the CSS by the way of beam scanning to the UE, including：
The beam set of base station selected one group of circulation, and by message to be transmitted according to resource element RE or resource element
The wave beam that group REG is recycled in the available beams set is transmitted；
The resource element is the minimum resource unit of physical layer, and the resource element groups REG is then continuous comprising several
Or discrete resource element.
Preferably, the base station sends the USS by the way of default individual transmission to the UE, including：
The base station is transmitted using the resource of physical down data channel, and is sent out using the specific wave beams of UE
Send.
Preferably, the NR-PDCCH channel resource message packages in the RRC signaling contain：
The resource information of the CSS, before the resource information occupies each subframe or every several subframes including the CSS
N number of OFDM symbol, and CSS polymerization grade parameter, the polymerization grade parameter of the CSS are used to aid in described in the UE progress
CSS blind check；
If the CSS is sent using omnidirectional's mode, corresponding multiple antennas scheme is not included；If the CSS uses open loop
The mode of transmission, then the wave beam message specifically used including the UE；
The resource location information and USS space sizes that the USS is occupied.
Preferably, the base station sends the CSS and USS, bag by the way of default uniform transmission to the UE
Include：
If the CSS and the USS occupy identical running time-frequency resource, and are transmitted using the specific modes of UE, then
It is transmitted in the resource of the physical down data channel occupied, the CSS and the USS are scrambled using different types of sequence
To make a distinction.
Preferably, the NR-PDCCH channel resource message packages in the RRC signaling contain：
The resource location information and its message size information that the CSS and the USS are occupied.
Second aspect, a kind of device of down control channel transmission, described device include：
Synchronization module, for being synchronized according to the synchronizing information that base station is sent and the base station；
First receiving module, broadcast the message for reception system, the system broadcast message includes physical accidental access letter
Road PRACH resources；The physical resource positional information of accidental access response and contention resolution message corresponding to different PRACH resources；
Selecting module, for selecting a Preamble sequence from the available PRACH resource pools of cell where this UE at random
Corresponding to being listed in Stochastic accessing is initiated in PRACH resources to base station；
Second receiving module, connect at random corresponding to the PRACH resources after the Preamble sequences for receiving
Enter accidental access response and contention resolution message corresponding to being sent in the physical resource positional information of response and contention resolution message,
And radio resource control RRC message is sent while contention resolution message is sent and configures physical down control to access the UE
Channel NR-PDCCH resource informations, wherein, the NR-PDCCH channels include the specific search spaces of public search space CSS and UE
USS, the CSS are used to send public control class message；The USS is used to send the specific downlink control message DCI of UE.
Preferably, described device also includes：
Sending module, for sending the CSS and institute to the UE by the way of default individual transmission and uniform transmission
State USS.
Preferably, the sending module, is specifically used for：
The CSS of all users of cell takes the preceding N of each subframe or each subframe where configuring described UE
Individual OFDM symbol, the CSS of different user can be multiplexed in time-domain or frequency domain；
The CSS is sent to the UE using omnidirectional's mode or open loop approach, omnidirectional's mode includes hair diversity and list
Port transmission, the open loop approach include beam scanning.
Preferably, the sending module, also particularly useful for：
One group of available beam set is selected, and message to be transmitted is followed according to resource element RE or resource element groups REG
Ring is transmitted using the wave beam in the available beams set；
The resource element is the minimum resource unit of physical layer, and the resource element groups REG is then continuous comprising several
Or discrete resource element.
Preferably, the sending module, also particularly useful for：
It is transmitted using the resource of physical down data channel, and is transmitted using the specific wave beams of UE.
Preferably, the NR-PDCCH channel resource message packages in the RRC signaling contain：
The resource information of the CSS, before the resource information occupies each subframe or every several subframes including the CSS
N number of OFDM symbol, and CSS polymerization grade parameter, the polymerization grade parameter of the CSS are used to aid in described in the UE progress
CSS blind check；
If the CSS is sent using omnidirectional's mode, corresponding multiple antennas scheme is not included；If the CSS uses open loop
The mode of transmission, then the wave beam message specifically used including the UE；
The resource location information and USS space sizes that the USS is occupied.
Preferably, the sending module, also particularly useful for：
If the CSS and the USS occupy identical running time-frequency resource, and are transmitted using the specific modes of UE, then
It is transmitted in the resource of the physical down data channel occupied, the CSS and the USS are scrambled using different types of sequence
To make a distinction.
Preferably, the NR-PDCCH channel resource message packages in the RRC signaling contain：
The resource location information and its message size information that the CSS and the USS are occupied.
The embodiment of the present invention provides a kind of method and device of down control channel transmission, and mobile terminal UE is sent out according to base station
The synchronizing information sent synchronizes with the base station；The UE reception systems broadcast message, the system broadcast message include thing
Manage RACH PRACH resources；Accidental access response corresponding to different PRACH resources and the physics of contention resolution message money
Source location information；One Preamble sequence of selection exists the UE from the available PRACH resource pools of cell where this UE at random
In corresponding PRACH resources Stochastic accessing is initiated to base station；The base station is received after the Preamble sequences described
Connect at random corresponding to being sent in the physical resource positional information of accidental access response corresponding to PRACH resources and contention resolution message
Enter response and contention resolution message, and radio resource control RRC message is sent as access while contention resolution message is sent
The UE configures Physical Downlink Control Channel NR-PDCCH resource informations, wherein, the NR-PDCCH channels include common search
Space CSS and UE specific search space USS, the CSS are for sending public control class message；The USS is used to send UE spies
Fixed downlink control message DCI.The NR-PDCCH of different user can dynamically occupy different physical resources and be transmitted, no
The flexibility of transmission is increase only, and improves resource utilization；And NR-PDCCH resource point is configured by RRC signaling
With information, auxiliary UE carries out blind check, reduces the complexity of UE blind checks.
Brief description of the drawings
Fig. 1 is that the embodiment of the present invention provides a kind of schematic flow sheet of the method for down control channel transmission；
Fig. 2 is the schematic flow sheet of the method for another down control channel transmission provided in an embodiment of the present invention；
Fig. 3 is a kind of high-level schematic functional block diagram of the device of down control channel transmission provided in an embodiment of the present invention.
Embodiment
The embodiment of the present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this
The specific embodiment of place description is used only for explaining the embodiment of the present invention, rather than the restriction to the embodiment of the present invention.In addition also
It should be noted that for the ease of describing, the part related to the embodiment of the present invention rather than entire infrastructure are illustrate only in accompanying drawing.
With reference to figure 1, Fig. 1 is a kind of flow signal of the method for down control channel transmission provided in an embodiment of the present invention
Figure.
As shown in figure 1, the method for the down control channel transmission includes：
Step 101, mobile terminal UE synchronizes according to the synchronizing information that base station is sent and the base station；
Step 102, the UE reception systems broadcast message, the system broadcast message include Physical Random Access Channel
PRACH resources；The physical resource positional information of accidental access response and contention resolution message corresponding to different PRACH resources；
Step 103, the UE selects a Preamble sequence from the available PRACH resource pools of cell where this UE at random
Corresponding to being listed in Stochastic accessing is initiated in PRACH resources to base station；
Step 104, the base station is received after the Preamble sequences in Stochastic accessing corresponding to the PRACH resources
Accidental access response and contention resolution message corresponding to being sent in the physical resource positional information of response and contention resolution message, and
Radio resource control RRC message is sent while contention resolution message is sent and configures physical down control letter to access the UE
Road NR-PDCCH resource informations, wherein, the NR-PDCCH channels include the specific search spaces of public search space CSS and UE
USS, the CSS are used to send public control class message；The USS is used to send the specific downlink control message DCI of UE.
The embodiment of the present invention provides a kind of method of down control channel transmission, and mobile terminal UE sends same according to base station
Step information synchronizes with the base station；The UE reception systems broadcast message, the system broadcast message include physical accidental
Access channel PRACH resources；The physical resource position of accidental access response and contention resolution message corresponding to different PRACH resources
Information；The UE selects a Preamble sequence corresponding from the available PRACH resource pools of cell where this UE at random
In PRACH resources Stochastic accessing is initiated to base station；The base station is received after the Preamble sequences in the PRACH resources
In the physical resource positional information of corresponding accidental access response and contention resolution message send corresponding to accidental access response and
Contention resolution message, and send radio resource control RRC message while contention resolution message is sent and match somebody with somebody to access the UE
Put Physical Downlink Control Channel NR-PDCCH resource informations, wherein, the NR-PDCCH channels include public search space CSS and
UE specific search space USS, the CSS are for sending public control class message；The USS is used to send UE specifically descending controls
Message DCI processed.NR-PDCCH channels can use and the identical precoding of data is transmitted, the NR- of different user
PDCCH can dynamically occupy different physical resources and be transmitted, and not only increase the flexibility of transmission, and improve money
Source utilization rate；And NR-PDCCH resource allocation information is configured by RRC signaling, auxiliary UE carries out blind check, reduces UE blind checks
Complexity.
With reference to figure 2, Fig. 2 is the flow signal of the method for another down control channel transmission provided in an embodiment of the present invention
Figure.
As shown in Fig. 2 the method for the down control channel transmission includes：
Step 201, mobile terminal UE synchronizes according to the synchronizing information that base station is sent and the base station；
Step 202, the UE reception systems broadcast message, the system broadcast message include Physical Random Access Channel
PRACH resources；The physical resource positional information of accidental access response and contention resolution message corresponding to different PRACH resources；
Step 203, the UE selects a Preamble sequence from the available PRACH resource pools of cell where this UE at random
Corresponding to being listed in Stochastic accessing is initiated in PRACH resources to base station；
Step 204, the base station is received after the Preamble sequences in Stochastic accessing corresponding to the PRACH resources
Accidental access response and contention resolution message corresponding to being sent in the physical resource positional information of response and contention resolution message, and
Radio resource control RRC message is sent while contention resolution message is sent and configures physical down control letter to access the UE
Road NR-PDCCH resource informations, wherein, the NR-PDCCH channels include the specific search spaces of public search space CSS and UE
USS, the CSS are used to send public control class message；The USS is used to send the specific downlink control message DCI of UE；
Step 205, the base station by the way of default individual transmission and uniform transmission to the UE send the CSS and
The USS.
First way is：The base station sends the CSS by the way of default individual transmission to the UE, including：
The CSS of all users of cell where the base station configures described UE takes each subframe or per several son
The top n OFDM symbol of frame, the CSS of different user can be multiplexed in time-domain or frequency domain；
The base station sends the CSS using omnidirectional's mode or open loop approach to the UE, and omnidirectional's mode includes hair
Diversity and single-ended port transmission, the open loop approach include beam scanning.
Preferably, the base station sends the CSS by the way of beam scanning to the UE, including：
Base station selected one group of available beam set, and by message to be transmitted according to resource element RE or resource element
The wave beam that group REG is recycled in the available beams set is transmitted；
The resource element is the minimum resource unit of physical layer, and the resource element groups REG is then continuous comprising several
Or discrete resource element.
Preferably, the base station sends the USS by the way of default individual transmission to the UE, including：
The base station is transmitted using the resource of physical down data channel, and is sent out using the specific wave beams of UE
Send.
Wherein, the NR-PDCCH channel resource message packages in the RRC signaling contain：
The resource information of the CSS, before the resource information occupies each subframe or every several subframes including the CSS
N number of OFDM symbol, and CSS polymerization grade parameter, the polymerization grade parameter of the CSS are used to aid in described in the UE progress
CSS blind check；
If the CSS is sent using omnidirectional's mode, corresponding multiple antennas scheme is not included；If the CSS uses open loop
The mode of transmission, then the wave beam message specifically used including the UE；
The resource location information and USS space sizes that the USS is occupied.
The second way is：The base station sends the CSS and described by the way of default uniform transmission to the UE
USS, including：
If the CSS and the USS occupy identical running time-frequency resource, and are transmitted using the specific modes of UE, then
It is transmitted in the resource of the physical down data channel occupied, the CSS and the USS are scrambled using different types of sequence
To make a distinction.
Preferably, the NR-PDCCH channel resource message packages in the RRC signaling contain：
The resource location information and its message size information that the CSS and the USS are occupied.
This method allows control message and data message to be transmitted using the specific beamforming approach of identical UE, no
The performance of NR-PDCCH channels is improve only, and different user can be multiplexed using different wave beams in space, be improved
The capacity of NR-PDCCH channels.
With reference to figure 3, Fig. 3 is that a kind of functional module of the device of down control channel transmission provided in an embodiment of the present invention is shown
It is intended to.
As shown in figure 3, described device includes：
Synchronization module 301, for being synchronized according to the synchronizing information that base station is sent and the base station；
First receiving module 302, broadcast the message for reception system, the system broadcast message accesses including physical accidental
Channel PRACH resources；Believe the physical resource position of accidental access response and contention resolution message corresponding to different PRACH resources
Breath；
Selecting module 303, for selecting a Preamble from the available PRACH resource pools of cell where this UE at random
Sequence initiates Stochastic accessing in corresponding PRACH resources to base station；
Second receiving module 304, for receiving after the Preamble sequences random corresponding to the PRACH resources
Accidental access response and Conflict solving disappear corresponding to being sent in the physical resource positional information of access response and contention resolution message
Breath, and send radio resource control RRC message while contention resolution message is sent and configure physical down to access the UE
Control channel NR-PDCCH resource informations, wherein, the NR-PDCCH channels include the specific search of public search space CSS and UE
Space USS, the CSS are used to send public control class message；The USS is used to send the specific downlink control message DCI of UE.
Preferably, described device also includes：
Sending module, for sending the CSS and institute to the UE by the way of default individual transmission and uniform transmission
State USS.
Preferably, the sending module, is specifically used for：
The CSS of all users of cell takes the preceding N of each subframe or each subframe where configuring described UE
Individual OFDM symbol, the CSS of different user can be multiplexed in time-domain or frequency domain；
The CSS is sent to the UE using omnidirectional's mode or open loop approach, omnidirectional's mode includes hair diversity and list
Port transmission, the open loop approach include beam scanning.
Preferably, the sending module, also particularly useful for：
One group of available beam set is selected, and message to be transmitted is followed according to resource element RE or resource element groups REG
Ring is transmitted using the wave beam in the available beams set；
The resource element is the minimum resource unit of physical layer, and the resource element groups REG is then continuous comprising several
Or discrete resource element.
Preferably, the sending module, also particularly useful for：
It is transmitted using the resource of physical down data channel, and is transmitted using the specific wave beams of UE.
Preferably, the NR-PDCCH channel resource message packages in the RRC signaling contain：
The resource information of the CSS, before the resource information occupies each subframe or every several subframes including the CSS
N number of OFDM symbol, and CSS polymerization grade parameter, the polymerization grade parameter of the CSS are used to aid in described in the UE progress
CSS blind check；
If the CSS is sent using omnidirectional's mode, corresponding multiple antennas scheme is not included；If the CSS uses open loop
The mode of transmission, then the wave beam message specifically used including the UE；
The resource location information and USS space sizes that the USS is occupied.
Preferably, the sending module, also particularly useful for：
If the CSS and the USS occupy identical running time-frequency resource, and are transmitted using the specific modes of UE, then
It is transmitted in the resource of the physical down data channel occupied, the CSS and the USS are scrambled using different types of sequence
To make a distinction.
Preferably, the NR-PDCCH channel resource message packages in the RRC signaling contain：
The resource location information and its message size information that the CSS and the USS are occupied.
The embodiment of the present invention provides a kind of device of down control channel transmission, and mobile terminal UE sends same according to base station
Step information synchronizes with the base station；The UE reception systems broadcast message, the system broadcast message include physical accidental
Access channel PRACH resources；The physical resource position of accidental access response and contention resolution message corresponding to different PRACH resources
Information；The UE selects a Preamble sequence corresponding from the available PRACH resource pools of cell where this UE at random
In PRACH resources Stochastic accessing is initiated to base station；The base station is received after the Preamble sequences in the PRACH resources
In the physical resource positional information of corresponding accidental access response and contention resolution message send corresponding to accidental access response and
Contention resolution message, and send radio resource control RRC message while contention resolution message is sent and match somebody with somebody to access the UE
Put Physical Downlink Control Channel NR-PDCCH resource informations, wherein, the NR-PDCCH channels include public search space CSS and
UE specific search space USS, the CSS are for sending public control class message；The USS is used to send UE specifically descending controls
Message DCI processed.The NR-PDCCH of different user can dynamically occupy different physical resources and be transmitted, and not only increase biography
Defeated flexibility, and improve resource utilization；And NR-PDCCH resource allocation information is configured by RRC signaling, it is auxiliary
Help UE to carry out blind check, reduce the complexity of UE blind checks.
The technical principle of the embodiment of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain this
The principle of inventive embodiments, and the limitation to protection domain of the embodiment of the present invention can not be construed in any way.Based on herein
Explanation, those skilled in the art, which would not require any inventive effort, can associate the other specific of the embodiment of the present invention
Embodiment, these modes are fallen within the protection domain of the embodiment of the present invention.
Claims (16)
- A kind of 1. method of down control channel transmission, it is characterised in that methods described includes：Mobile terminal UE synchronizes according to the synchronizing information that base station is sent and the base station；The UE reception systems broadcast message, the system broadcast message include Physical Random Access Channel PRACH resources；It is different The physical resource positional information of accidental access response corresponding to PRACH resources and contention resolution message；The UE selects a Preamble sequence corresponding from the available PRACH resource pools of cell where this UE at random In PRACH resources Stochastic accessing is initiated to base station；The base station solves after receiving the Preamble sequences in accidental access response corresponding to the PRACH resources and competition Accidental access response and contention resolution message corresponding to certainly being sent in the physical resource positional information of message, and sending conflict solution Radio resource control RRC message is certainly sent while message and configures Physical Downlink Control Channel NR-PDCCH moneys to access the UE Source information, wherein, the NR-PDCCH channels include the specific search space USS of public search space CSS and UE, the CSS use In the public control class message of transmission；The USS is used to send the specific downlink control message DCI of UE.
- 2. according to the method for claim 1, it is characterised in that methods described also includes：The base station sends the CSS and USS by the way of default individual transmission and uniform transmission to the UE.
- 3. according to the method for claim 2, it is characterised in that the base station is by the way of default individual transmission to described UE sends the CSS, including：The each subframe of CSS occupancy of all users of cell where the base station configures described UE or often several subframes Top n OFDM symbol, the CSS of different user can be multiplexed in time-domain or frequency domain；The base station sends the CSS using omnidirectional's mode or open loop approach to the UE, and omnidirectional's mode includes hair diversity With single-ended port transmission, the open loop approach includes beam scanning.
- 4. according to the method for claim 3, it is characterised in that sent out by the way of beam scanning to the UE base station The CSS is sent, including：Base station selected one group of available beam set, and by message to be transmitted according to resource element RE or resource element groups The wave beam that REG is recycled in the available beams set is transmitted；The resource element is the minimum resource unit of physical layer, the resource element groups REG then comprising several it is continuous or Discrete resource element.
- 5. according to the method for claim 2, it is characterised in that the base station is by the way of default individual transmission to described UE sends the USS, including：The base station is transmitted using the resource of physical down data channel, and is transmitted using the specific wave beams of UE.
- 6. according to the method described in claim 3 to 5 any one, it is characterised in that the NR-PDCCH letters in the RRC signaling Road message related to resources includes：The resource information of the CSS, the resource information include the CSS and occupy each subframe or the top n per several subframes OFDM symbol, and CSS polymerization grade parameter, the polymerization grade parameter of the CSS are used to aid in the UE to carry out the CSS Blind check；If the CSS is sent using omnidirectional's mode, corresponding multiple antennas scheme is not included；If the CSS uses open-loop transmission Mode, then the wave beam message specifically used including the UE；The resource location information and USS space sizes that the USS is occupied.
- 7. according to the method for claim 2, it is characterised in that the base station is by the way of default uniform transmission to described UE sends the CSS and USS, including：If the CSS and the USS occupy identical running time-frequency resource, and are transmitted using the specific modes of UE, then accounting for According to the resource of physical down data channel be transmitted, the CSS and the USS are scrambled using different types of sequence to enter Row is distinguished.
- 8. according to the method for claim 7, it is characterised in that the NR-PDCCH channel resource message in the RRC signaling Comprising：The resource location information and its message size information that the CSS and the USS are occupied.
- 9. a kind of device of down control channel transmission, it is characterised in that described device includes：Synchronization module, for being synchronized according to the synchronizing information that base station is sent and the base station；First receiving module, broadcasts the message for reception system, and the system broadcast message includes Physical Random Access Channel PRACH resources；The physical resource positional information of accidental access response and contention resolution message corresponding to different PRACH resources；Selecting module, for one Preamble sequence of selection to exist from the available PRACH resource pools of cell where this UE at random In corresponding PRACH resources Stochastic accessing is initiated to base station；Second receiving module, rung for receiving in Stochastic accessing corresponding to the PRACH resources after the Preamble sequences Should with sent on the physical resource position of contention resolution message corresponding to accidental access response and contention resolution message, and sending Radio resource control RRC message is sent while contention resolution message and configures Physical Downlink Control Channel NR- to access the UE PDCCH resource information, wherein, the NR-PDCCH channels include the specific search space USS of public search space CSS and UE, institute CSS is stated to be used to send public control class message；The USS is used to send the specific downlink control message DCI of UE.
- 10. device according to claim 9, it is characterised in that described device also includes：Sending module, for sending the CSS and described to the UE by the way of default individual transmission and uniform transmission USS。
- 11. device according to claim 10, it is characterised in that the sending module, be specifically used for：The CSS of all users of cell where configuring described UE takes each subframe or the top n per several subframes OFDM symbol, the CSS of different user can be multiplexed in time-domain or frequency domain；The CSS is sent to the UE using omnidirectional's mode or open loop approach, omnidirectional's mode includes hair diversity and single port Transmission, the open loop approach include beam scanning.
- 12. device according to claim 11, it is characterised in that the sending module, also particularly useful for：One group of available beam set is selected, and message to be transmitted is made according to resource element RE or resource element groups REG circulations It is transmitted with the wave beam in the available beams set；The resource element is the minimum resource unit of physical layer, the resource element groups REG then comprising several it is continuous or Discrete resource element.
- 13. device according to claim 10, it is characterised in that the sending module, also particularly useful for：It is transmitted using the resource of physical down data channel, and is transmitted using the specific wave beams of UE.
- 14. according to the device described in claim 11 to 13 any one, it is characterised in that the NR- in the RRC signaling PDCCH channel resource message packages contain：The resource information of the CSS, the resource information include the CSS and occupy each subframe or the top n per several subframes OFDM symbol, and CSS polymerization grade parameter, the polymerization grade parameter of the CSS are used to aid in the UE to carry out the CSS Blind check；If the CSS is sent using omnidirectional's mode, corresponding multiple antennas scheme is not included；If the CSS uses open-loop transmission Mode, then the wave beam message specifically used including the UE；The resource location information and USS space sizes that the USS is occupied.
- 15. device according to claim 10, it is characterised in that the sending module, also particularly useful for：If the CSS and the USS occupy identical running time-frequency resource, and are transmitted using the specific modes of UE, then accounting for According to the resource of physical down data channel be transmitted, the CSS and the USS are scrambled using different types of sequence to enter Row is distinguished.
- 16. device according to claim 15, it is characterised in that the NR-PDCCH channel resources in the RRC signaling disappear Breath includes：The resource location information and its message size information that the CSS and the USS are occupied.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109076617A (en) * | 2018-07-25 | 2018-12-21 | 北京小米移动软件有限公司 | Accidental access method, device and the storage medium of MTC system |
| CN109076593A (en) * | 2018-07-25 | 2018-12-21 | 北京小米移动软件有限公司 | Transmission configuration method and device |
| CN110381607A (en) * | 2018-04-13 | 2019-10-25 | 维沃移动通信有限公司 | A kind of control method and terminal |
| CN110475211A (en) * | 2018-05-11 | 2019-11-19 | 北京展讯高科通信技术有限公司 | Configuration method, monitor method and the device of public search space, storage medium, terminal, base station |
| WO2019219003A1 (en) * | 2018-05-17 | 2019-11-21 | 中兴通讯股份有限公司 | Random access method and device, storage medium, electronic device |
| CN110536419A (en) * | 2018-05-23 | 2019-12-03 | 中兴通讯股份有限公司 | A kind of wave beam restoration methods and device |
| CN110730060A (en) * | 2019-11-15 | 2020-01-24 | 深圳市东方拓宇科技有限公司 | Control method of downlink physical control channel, terminal equipment and gNodeB |
| US10764918B2 (en) | 2018-06-11 | 2020-09-01 | At&T Intellectual Property I, L.P. | Wireless communication framework for multiple user equipment |
| US10951362B2 (en) | 2018-08-10 | 2021-03-16 | At&T Intellectual Property I, L.P. | Hybrid automatic repeat request and scheduling for wireless cellular systems with local traffic managers |
| US11039422B2 (en) | 2019-01-11 | 2021-06-15 | At&T Intellectual Property I, L.P. | Load manager performance management for 5G or other next generation network |
| CN113330809A (en) * | 2018-12-21 | 2021-08-31 | 弗劳恩霍夫应用研究促进协会 | Bidirectional scheduling in low power wide area networks |
| US11234251B2 (en) | 2018-08-17 | 2022-01-25 | At&T Intellectual Property I, L.P. | Generic control channel configuration for new radio sidelink |
| CN114938703A (en) * | 2022-04-18 | 2022-08-23 | 北京小米移动软件有限公司 | Physical downlink control channel receiving and sending method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110026449A1 (en) * | 2009-08-02 | 2011-02-03 | Richard Lee-Chee Kuo | Method and Apparatus for PDCCH Allocation in Wireless Communication System |
| CN103096491A (en) * | 2011-11-07 | 2013-05-08 | 上海贝尔股份有限公司 | Method and device of physics descending link control information channels having enhanced scheduling |
-
2016
- 2016-09-28 CN CN201610862607.XA patent/CN107872888A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110026449A1 (en) * | 2009-08-02 | 2011-02-03 | Richard Lee-Chee Kuo | Method and Apparatus for PDCCH Allocation in Wireless Communication System |
| CN103096491A (en) * | 2011-11-07 | 2013-05-08 | 上海贝尔股份有限公司 | Method and device of physics descending link control information channels having enhanced scheduling |
Non-Patent Citations (2)
| Title |
|---|
| ERICSSON: "On the random access procedure", 《3GPP TSG-RAN WG1 MEETING #86 R1-167059》 * |
| XINWEI: "Considerations on Multi-antenna Schemes for NR Downlink Control Channel Design", 《3GPP TSG RAN WG1 MEETING #86 R1-166584》 * |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| US11800545B2 (en) | 2018-04-13 | 2023-10-24 | Vivo Mobile Communication Co., Ltd. | Control method and terminal |
| CN110381607A (en) * | 2018-04-13 | 2019-10-25 | 维沃移动通信有限公司 | A kind of control method and terminal |
| CN110475211A (en) * | 2018-05-11 | 2019-11-19 | 北京展讯高科通信技术有限公司 | Configuration method, monitor method and the device of public search space, storage medium, terminal, base station |
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| CN110505710A (en) * | 2018-05-17 | 2019-11-26 | 中兴通讯股份有限公司 | Accidental access method and device, storage medium, electronic device |
| US11382142B2 (en) | 2018-05-17 | 2022-07-05 | Zte Corporation | Random access method and device, storage medium, and electronic device |
| CN110505710B (en) * | 2018-05-17 | 2023-01-20 | 中兴通讯股份有限公司 | Random access method and device, storage medium and electronic device |
| WO2019219003A1 (en) * | 2018-05-17 | 2019-11-21 | 中兴通讯股份有限公司 | Random access method and device, storage medium, electronic device |
| CN110536419B (en) * | 2018-05-23 | 2023-04-18 | 中兴通讯股份有限公司 | Beam recovery method and device |
| CN110536419A (en) * | 2018-05-23 | 2019-12-03 | 中兴通讯股份有限公司 | A kind of wave beam restoration methods and device |
| US12096455B2 (en) | 2018-06-11 | 2024-09-17 | At&T Intellectual Property I, L.P. | Wireless communication framework for multiple user equipment |
| US10764918B2 (en) | 2018-06-11 | 2020-09-01 | At&T Intellectual Property I, L.P. | Wireless communication framework for multiple user equipment |
| US11497048B2 (en) | 2018-06-11 | 2022-11-08 | At&T Intellectual Property I, L.P. | Wireless communication framework for multiple user equipment |
| CN109076593A (en) * | 2018-07-25 | 2018-12-21 | 北京小米移动软件有限公司 | Transmission configuration method and device |
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| CN109076617A (en) * | 2018-07-25 | 2018-12-21 | 北京小米移动软件有限公司 | Accidental access method, device and the storage medium of MTC system |
| US11546867B2 (en) | 2018-07-25 | 2023-01-03 | Beijing Xiaomi Mobile Software Co., Ltd. | Transmission configuration method and apparatus |
| US11451342B2 (en) | 2018-08-10 | 2022-09-20 | At&T Intellectual Property I, L.P. | Hybrid automatic repeat request and scheduling for wireless cellular systems with local traffic managers |
| US10951362B2 (en) | 2018-08-10 | 2021-03-16 | At&T Intellectual Property I, L.P. | Hybrid automatic repeat request and scheduling for wireless cellular systems with local traffic managers |
| US11234251B2 (en) | 2018-08-17 | 2022-01-25 | At&T Intellectual Property I, L.P. | Generic control channel configuration for new radio sidelink |
| US12058666B2 (en) | 2018-08-17 | 2024-08-06 | AT&T Intellect al Property I, L.P. | Generic control channel configuration for new radio sidelink |
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