CN109041118B - Resource allocation method and communication equipment - Google Patents

Resource allocation method and communication equipment Download PDF

Info

Publication number
CN109041118B
CN109041118B CN201710428944.2A CN201710428944A CN109041118B CN 109041118 B CN109041118 B CN 109041118B CN 201710428944 A CN201710428944 A CN 201710428944A CN 109041118 B CN109041118 B CN 109041118B
Authority
CN
China
Prior art keywords
cce
scheduling
subframe
occupation ratio
preset
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710428944.2A
Other languages
Chinese (zh)
Other versions
CN109041118A (en
Inventor
蒋一鸣
李翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Datang Mobile Communications Equipment Co Ltd
Original Assignee
Datang Mobile Communications Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Datang Mobile Communications Equipment Co Ltd filed Critical Datang Mobile Communications Equipment Co Ltd
Priority to CN201710428944.2A priority Critical patent/CN109041118B/en
Publication of CN109041118A publication Critical patent/CN109041118A/en
Application granted granted Critical
Publication of CN109041118B publication Critical patent/CN109041118B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • 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
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The invention discloses a resource allocation method and a communication device, wherein the method comprises the following steps: judging whether a control channel element CCE scheduling conflict exists in a physical downlink control channel PDCCH resource allocation stage; if so, determining the type of the CCE scheduling conflict; when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, adjusting a CCE aggregation level and/or the transmission power of a PDCCH corresponding to the UE in the subframe; and when the CCE scheduling conflict type is determined to be the conflict type of uplink scheduling and downlink scheduling in the subframe, reserving CCE resources for the uplink scheduling according to a preset occupation ratio. The method can effectively solve the technical problems that resource waste is easy to generate and user perception is poor when PDCCH resource allocation is carried out in the prior art.

Description

Resource allocation method and communication equipment
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a resource allocation method and a communication device.
Background
With the continuous development of scientific technology, LTE (Long Term Evolution) wireless technology has been widely used. In the prior art, a PDCCH (Physical Downlink Control Channel) mainly carries DCI (Downlink Control information) in LTE, and determines Control information such as resource allocation, a frequency modulation type, and a transmission mode of a PUSCH (Physical Uplink Shared Channel) and a PDSCH (Physical Downlink Shared Channel).
On PDCCH, the basic unit carrying DCI is CCE (Control Channel Element). In the PDCCH resource allocation stage in LTE, if CCE collision is found, the following user resource allocation fails, and the current subframe of the user cannot be scheduled, so that the number of users scheduled in a single subframe is reduced, and waste of air interface physical transmission resources may be caused. Such as: for the subframe configuration 1U3D configuration of the TD-LTE system, downlink data scheduling of subframe 3 is prior to uplink subframe scheduling of subframe 7, but DCI is transmitted in subframe 3, so after scheduling the downlink user of subframe 3, the remaining available CCEs may be relatively small, when scheduling subframe 7 uplink service, the probability of CCE collision is increased, and because the edge user channel condition is poor, the probability of CCE aggregation level 8 corresponding to the selected PDCCH is relatively high, and for the scenario with CCE aggregation level 8, the 36.213 protocol defines that only 2 dedicated search spaces are available for selection, so the number of CCEs allocated to the user is limited, and CCE collision is also easily generated. Therefore, in the prior art, when PDCCH resource allocation is performed, CCE collision is easily generated, which results in a reduction in the number of users scheduled in a single subframe, and further results in resource waste and poor user perception.
Disclosure of Invention
The embodiment of the invention provides a resource allocation method and communication equipment, which are used for solving the technical problems that CCE (control channel element) conflict is easy to generate when PDCCH (physical Downlink control channel) resource allocation is carried out in the prior art, so that the number of users scheduled by a single subframe is reduced, further, resources are wasted, and user perception is poor.
The embodiment of the invention provides the following specific technical scheme:
in a first aspect, an embodiment of the present invention provides a resource allocation method, including:
judging whether a control channel element CCE scheduling conflict exists in a physical downlink control channel PDCCH resource allocation stage;
if so, determining the type of the CCE scheduling conflict;
when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, adjusting a CCE aggregation level and/or transmission power of a PDCCH corresponding to the UE in the subframe so as to adjust CCE resources distributed to the UE;
and when the CCE scheduling conflict type is determined to be the conflict type of uplink scheduling and downlink scheduling in the subframe, reserving CCE resources for the uplink scheduling according to a preset occupation ratio, wherein the preset occupation ratio is the percentage of the number of the reserved CCEs in the number of the available CCEs corresponding to the subframe.
In a possible embodiment, the adjusting the CCE aggregation level and/or the transmission power of the PDCCH corresponding to the UE specifically includes:
adjusting up a CCE aggregation level corresponding to the UE; or
And adjusting the CCE aggregation level corresponding to the UE downwards and adjusting the transmission power of the PDCCH upwards.
In a possible embodiment, the adjusting the CCE aggregation level and/or the transmission power of the PDCCH corresponding to the UE specifically includes:
adjusting up a CCE aggregation level corresponding to the UE;
judging whether available CCE resources exist after the CCE aggregation level corresponding to the UE is adjusted upwards;
and if not, adjusting the CCE aggregation level corresponding to the UE downwards and adjusting the transmission power of the PDCCH upwards.
In a possible embodiment, the method further comprises: and adjusting the preset ratio according to a preset time interval.
In a possible embodiment, the adjusting the preset ratio according to a preset time interval specifically includes:
counting the number of CCEs (control channel elements) scheduled in an uplink mode and the number of users scheduled in the uplink mode in a preset time interval nearest to the current moment;
acquiring the number of users queued in the current subframe and the number of CCEs available in the current subframe;
estimating CCE occupation ratio required by uplink scheduling based on the number of CCEs scheduled in uplink and the number of users scheduled in uplink in the preset time interval nearest to the current moment, the number of users queued in the current subframe and the number of CCEs available in the current subframe;
and adjusting the preset occupation ratio based on the CCE occupation ratio required by the uplink scheduling.
In a possible embodiment, adjusting the preset ratio based on the CCE ratio required for the uplink scheduling specifically includes:
judging whether the absolute value of the difference value between the CCE occupation ratio required by the uplink scheduling and the preset occupation ratio is greater than a preset threshold value or not;
if yes, when the CCE occupation ratio required by the uplink scheduling is larger than the preset occupation ratio, the preset occupation ratio is adjusted upwards, and when the CCE occupation ratio required by the uplink scheduling is smaller than the preset occupation ratio, the preset occupation ratio is adjusted downwards.
In a second aspect, an embodiment of the present invention provides a communication device, including:
the judging module is used for judging whether a control channel element CCE scheduling conflict exists in a physical downlink control channel PDCCH resource allocation stage;
a determining module, configured to determine that a CCE scheduling conflict exists in the determining module, and determine a type of the CCE scheduling conflict;
an adjusting module, configured to adjust a CCE aggregation level and/or a transmission power of a PDCCH corresponding to the UE in the subframe to adjust CCE resources allocated to the UE when it is determined that the type of the CCE scheduling conflict is a conflict type of uplink scheduling and uplink scheduling in the subframe or a conflict type of downlink scheduling and downlink scheduling in the subframe; and when the CCE scheduling conflict type is determined to be the conflict type of uplink scheduling and downlink scheduling in the subframe, reserving CCE resources for the uplink scheduling according to a preset occupation ratio, wherein the preset occupation ratio is the percentage of the number of the reserved CCEs in the number of the available CCEs corresponding to the subframe. In a possible embodiment, the adjusting module is further configured to:
when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, the CCE aggregation level corresponding to the UE is adjusted upwards; or
And adjusting the CCE aggregation level corresponding to the UE downwards and adjusting the transmission power of the PDCCH upwards.
In a possible embodiment, the adjusting module is further configured to:
when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, the CCE aggregation level corresponding to the UE is adjusted upwards;
judging whether available CCE resources exist after the CCE aggregation level corresponding to the UE is adjusted upwards;
and if not, adjusting the CCE aggregation level corresponding to the UE downwards and adjusting the transmission power of the PDCCH upwards.
In a possible embodiment, the adjusting module further includes:
and the updating submodule is used for adjusting the preset ratio according to a preset time interval.
In a possible embodiment, the update sub-module is further configured to:
counting the number of CCEs (control channel elements) scheduled in an uplink mode and the number of users scheduled in the uplink mode in a preset time interval nearest to the current moment;
acquiring the number of users queued in the current subframe and the number of CCEs available in the current subframe;
estimating CCE occupation ratio required by uplink scheduling based on the number of CCEs scheduled in uplink and the number of users scheduled in uplink in the preset time interval nearest to the current moment, the number of users queued in the current subframe and the number of CCEs available in the current subframe;
and adjusting the preset occupation ratio based on the CCE occupation ratio required by the uplink scheduling.
In a possible embodiment, the update sub-module is further configured to:
judging whether the absolute value of the difference value between the CCE occupation ratio required by the uplink scheduling and the preset occupation ratio is greater than a preset threshold value or not;
if yes, when the CCE occupation ratio required by the uplink scheduling is larger than the preset occupation ratio, the preset occupation ratio is adjusted upwards, and when the CCE occupation ratio required by the uplink scheduling is smaller than the preset occupation ratio, the preset occupation ratio is adjusted downwards.
In a third aspect, an embodiment of the present invention provides a communication device, including a processor, a memory, and a transceiver, where the transceiver receives and transmits data under the control of the processor, the memory stores a preset program, and the processor reads the program in the memory and executes the following processes according to the program:
the processor judges whether a control channel element CCE scheduling conflict exists or not in a physical downlink control channel PDCCH resource allocation stage; if so, determining the type of the CCE scheduling conflict; when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, adjusting a CCE aggregation level and/or transmission power of a PDCCH corresponding to the UE in the subframe so as to adjust CCE resources distributed to the UE; and when the CCE scheduling conflict type is determined to be the conflict type of uplink scheduling and downlink scheduling in the subframe, reserving CCE resources for the uplink scheduling according to a preset occupation ratio, wherein the preset occupation ratio is the percentage of the number of the reserved CCEs in the number of the available CCEs corresponding to the subframe. In a possible embodiment, the processor is further configured to:
when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, the CCE aggregation level corresponding to the UE is adjusted upwards; or
And adjusting the CCE aggregation level corresponding to the UE downwards and adjusting the transmission power of the PDCCH upwards.
In a possible embodiment, the processor is further configured to:
when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, the CCE aggregation level corresponding to the UE is adjusted upwards;
judging whether available CCE resources exist after the CCE aggregation level corresponding to the UE is adjusted upwards;
and if not, adjusting the CCE aggregation level corresponding to the UE downwards and adjusting the transmission power of the PDCCH upwards.
In a possible embodiment, the processor is further configured to:
and adjusting the preset ratio according to a preset time interval.
In a possible embodiment, the processor is further configured to:
counting the number of CCEs (control channel elements) scheduled in an uplink mode and the number of users scheduled in the uplink mode in a preset time interval nearest to the current moment;
acquiring the number of users queued in the current subframe and the number of CCEs available in the current subframe;
estimating CCE occupation ratio required by uplink scheduling based on the number of CCEs scheduled in uplink and the number of users scheduled in uplink in the preset time interval nearest to the current moment, the number of users queued in the current subframe and the number of CCEs available in the current subframe;
and adjusting the preset occupation ratio based on the CCE occupation ratio required by the uplink scheduling.
In a possible embodiment, the processor is further configured to:
judging whether the absolute value of the difference value between the CCE occupation ratio required by the uplink scheduling and the preset occupation ratio is greater than a preset threshold value or not;
if yes, when the CCE occupation ratio required by the uplink scheduling is larger than the preset occupation ratio, the preset occupation ratio is adjusted upwards, and when the CCE occupation ratio required by the uplink scheduling is smaller than the preset occupation ratio, the preset occupation ratio is adjusted downwards.
Based on the technical scheme, in the embodiment of the invention, in the PDCCH resource allocation stage, when the CCE scheduling conflict is detected, the type of the CCE scheduling conflict can be determined, and the strategy for allocating the CCE resources is adaptively adjusted according to the type of the CCE scheduling conflict. And the technical problems that CCE conflict is easily generated when PDCCH resource allocation is carried out in the prior art, the number of users scheduled by a single subframe is reduced, resource waste is caused, and user perception is poor can be effectively solved. The waste of empty physical resources is effectively reduced, the throughput of an uplink and downlink system is effectively improved, and the user perception is improved.
Drawings
FIG. 1 is a flowchart illustrating a resource allocation method according to an embodiment of the present invention;
fig. 2 is a block diagram of a communication device according to a second embodiment of the present invention;
fig. 3 is a block diagram of a communication device according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
In this embodiment, as shown in fig. 1, a specific flow of the resource allocation method is as follows:
step 101: judging whether a control channel element CCE scheduling conflict exists in a physical downlink control channel PDCCH resource allocation stage;
step 102: if so, determining the type of the CCE scheduling conflict;
step 103: when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, adjusting a CCE aggregation level and/or transmission power of a PDCCH corresponding to the UE in the subframe so as to adjust CCE resources distributed to the UE;
and when the CCE scheduling conflict type is determined to be the conflict type of uplink scheduling and downlink scheduling in the subframe, reserving CCE resources for the uplink scheduling according to a preset occupation ratio, wherein the preset occupation ratio is the percentage of the number of the reserved CCEs in the number of the available CCEs corresponding to the subframe.
Specifically, in this embodiment, in the process of performing CCE resource allocation in the PDCCH, a CCE scheduling conflict may be caused due to the influence of a channel environment or a priority of uplink and downlink scheduling, and when a CCE scheduling conflict is detected, the type of the CCE scheduling conflict is determined. The type of CCE scheduling conflict may be the type of conflict between uplink scheduling and uplink scheduling in a subframe, the type of conflict between downlink scheduling and downlink scheduling in a subframe, and the type of conflict between uplink scheduling and downlink scheduling in a subframe. And adopting different CCE resource allocation strategies according to different types of CCE scheduling conflicts.
Specifically, in this embodiment, when it is determined that a CCE scheduling conflict exists, the type of CCE scheduling conflict that may exist corresponding to the subframe may be determined based on the parameter information of the subframe. Such as: for the TDD system, when the subframe ratio is 1U3D, subframes 4, 5, and 6 are all PDCCHs that only transmit scheduling downlink traffic, and when multiple users correspondingly exist in these subframes, a collision between downlink scheduling and downlink scheduling of CCE resources in the subframes occurs. For another example: subframe 8 is used to transmit both a PDCCH corresponding to downlink scheduling of downlink subframe 8 and a PDCCH (DCI0) corresponding to uplink scheduling of uplink subframe 12, and when there are multiple users, there may be a collision between downlink scheduling and downlink scheduling of CCE resources in the subframe, a collision between uplink scheduling and uplink scheduling of CCE resources in the subframe, and a collision between uplink scheduling and downlink scheduling of CCE resources in the subframe. In case of an FDD system, under the condition that a subframe corresponds to multiple users, each subframe has conflicts of downlink scheduling and downlink scheduling of CCE resources in the subframe, conflicts of uplink scheduling and uplink scheduling of CCE resources in the subframe, and conflicts of uplink scheduling and downlink scheduling of CCE resources in the subframe.
Therefore, in the specific implementation process, due to the different CCE collision types, the resource allocation strategies are different, and the following two cases can be specifically distinguished:
in the first case: when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, adjusting a CCE aggregation level and/or transmission power of a PDCCH corresponding to the UE in the subframe so as to adjust CCE resources distributed to the UE;
wherein the adjusting the CCE aggregation level and/or the transmission power of the PDCCH corresponding to the UE specifically includes: adjusting up a CCE aggregation level corresponding to the UE; or adjusting down the CCE aggregation level corresponding to the UE and increasing the transmission power of the PDCCH.
Wherein the adjusting the CCE aggregation level and/or the transmission power of the PDCCH corresponding to the UE specifically includes: adjusting up a CCE aggregation level corresponding to the UE; judging whether available CCE resources exist after the CCE aggregation level corresponding to the UE is adjusted upwards; and if not, adjusting the CCE aggregation level corresponding to the UE downwards and adjusting the transmission power of the PDCCH upwards.
If the type of the CCE scheduling conflict is determined to be the conflict type of uplink scheduling and uplink scheduling in the subframe or the conflict type of downlink scheduling and downlink scheduling in the subframe, when the CCE resource is allocated to the UE in the subframe, firstly, the CCE aggregation level corresponding to the UE is obtained, whether the CCE resource which can be scheduled exists in the current CCE aggregation level is judged, and if not, the CCE aggregation level corresponding to the UE is adjusted.
Specifically, the CCE resources corresponding to different CCE aggregation levels are different, for example: when the CCE aggregation level corresponding to the UE is 1, the number of the CCEs corresponding to the UE is 6; when the CCE aggregation level corresponding to the UE is 2, the number of the CCEs corresponding to the UE is 12; when the CCE aggregation level corresponding to the UE is 4, the number of the CCEs corresponding to the UE is 8; when the CCE aggregation level corresponding to a UE is 8, the number of CCEs corresponding to the UE is 16.
When adjusting the CCE aggregation level corresponding to the UE, the CCE aggregation level corresponding to the UE may be adjusted up or the CCE aggregation level corresponding to the UE and the transmission power of the PDCCH may be adjusted down. Of course, the CCE aggregation level corresponding to the UE may also be first adjusted up, and when no CCE resource is available after the CCE aggregation level is adjusted up, the CCE aggregation level may be adjusted down. Meanwhile, the CCE aggregation level can be adjusted downwards and the transmission power of the PDCCH can be adjusted upwards at the same time, and if no available CCE resource is available after the CCE aggregation level is adjusted downwards, the CCE aggregation level is adjusted upwards. In a specific implementation process, a suitable manner may be selected to adjust the CCE aggregation level according to specific needs, and the application is not limited herein.
Such as: when the PDCCH resource is allocated, the current aggregation level of the UE is 4, when the CCE aggregation level has no available CCE resource, the CCE aggregation level of the UE is adjusted up, and the CCE aggregation level of the UE is set to 8, so that whether the locations of the allocated CCEs are not in conflict or not can be calculated, and if no CCE aggregation level is in conflict, the CCE resource with the CCE aggregation level of 8 is selected to configure and transmit the PDCCH DCI. If there is a conflict even if the CCE aggregation level is raised, the CCE aggregation level is lowered, and if the aggregation level selected by CCE adaptation is 8, the CCE aggregation level may be lowered to 4 while raising the power of the PDCCH. And reducing different CCE aggregation levels and increasing the amplitude of PDCCH transmission power.
In the second case: and when the CCE scheduling conflict type is determined to be the conflict type of uplink scheduling and downlink scheduling in the subframe, reserving CCE resources for the uplink scheduling according to a preset occupation ratio, wherein the preset occupation ratio is the percentage of the number of the reserved CCEs in the number of the available CCEs corresponding to the subframe.
Wherein the method further comprises: adjusting the preset ratio according to a preset time interval, comprising:
counting the number of CCEs (control channel elements) scheduled in an uplink mode and the number of users scheduled in the uplink mode in a preset time interval nearest to the current moment;
acquiring the number of users queued in the current subframe and the number of CCEs available in the current subframe;
estimating CCE occupation ratio required by uplink scheduling based on the number of CCEs scheduled in uplink and the number of users scheduled in uplink in the preset time interval nearest to the current moment, the number of users queued in the current subframe and the number of CCEs available in the current subframe;
and adjusting the preset occupation ratio based on the CCE occupation ratio required by the uplink scheduling.
Adjusting the preset occupation ratio based on the CCE occupation ratio required by the uplink scheduling specifically comprises:
judging whether the absolute value of the difference value between the CCE occupation ratio required by the uplink scheduling and the preset occupation ratio is greater than a preset threshold value or not;
if yes, when the CCE occupation ratio required by the uplink scheduling is larger than the preset occupation ratio, the preset occupation ratio is adjusted upwards, and when the CCE occupation ratio required by the uplink scheduling is smaller than the preset occupation ratio, the preset occupation ratio is adjusted downwards.
Specifically, in this embodiment, if it is determined that the type of the CCE scheduling conflict is a conflict type of uplink scheduling and downlink scheduling in the subframe, when CCE resources are allocated in the subframe, since the downlink scheduling priority is often higher than the uplink scheduling, after the downlink scheduling is completed, CCE resources available for uplink scheduling are limited, and CCE scheduling conflict is easily generated, so CCE resources may be reserved for uplink scheduling first. Specifically, CCE resources may be reserved for uplink scheduling according to a preset duty ratio before resource allocation.
Such as: considering that subframe 3 can simultaneously schedule uplink and downlink DCI, and the downlink scheduling of subframe 3 is prior to the uplink scheduling of subframe 7, there is a problem that CCE resources are preferentially occupied by the downlink scheduling in subframe 3 or subframe 3, resulting in CCE collision during uplink scheduling. For the problem, when the CCE conflict types of uplink scheduling and downlink scheduling are considered, the total CCE of the subframe is pre-allocated, namely the preset ratio part of the total number of the CCE is reserved for the uplink scheduling, wherein the reserved CCE position is not limited, and only the number of the CCE is limited. The initial value of the preset occupancy may be set according to an actual situation, for example, the initial value of the preset occupancy is set to be 50%, that is, 50% of the available CCE resources corresponding to the subframe are reserved for uplink scheduling.
Further, the preset duty ratio can be dynamically adjusted according to a preset time interval. The adjustment mode can be realized by the following modes: the CCE proportion required by uplink scheduling can be estimated firstly, and the number of CCEs scheduled in uplink and the number of users scheduled in uplink in a preset time interval nearest to the current moment, the number of users queued in a current subframe and the number of CCEs available in the current subframe need to be counted during estimation. Further, an estimation formula of CCE ratio W required for uplink scheduling is as follows:
Figure BDA0001316910090000111
based on the formula, the CCE occupation ratio required by uplink scheduling can be estimated, and then the current preset occupation ratio is compared with the CCE occupation ratio required by uplink scheduling to obtain the absolute value of the difference value between the current preset occupation ratio and the CCE occupation ratio required by uplink scheduling, if the absolute value is greater than the preset threshold, the current preset occupation ratio is indicated to not meet the requirement of uplink scheduling, and the current preset occupation ratio needs to be adjusted. Specifically, when the CCE occupation ratio required by the uplink scheduling is greater than the current preset occupation ratio, it indicates that the currently reserved CCE resources are not enough for the uplink scheduling, and the current preset occupation ratio is adjusted up to reserve a little more CCE resources for the uplink scheduling. When the CCE occupation ratio required by uplink scheduling is smaller than the current preset occupation ratio, the fact that the number of the reserved CCE resources is large currently is shown, and the uplink scheduling does not use up the reserved CCE resources, so that the current preset occupation ratio is reduced, and the reserved CCE resources are not wasted.
Such as: the ratio of CCE resources reserved for uplink scheduling at the current time is 50%, that is, the current preset ratio is 50%, the CCE ratio W required for uplink scheduling is estimated by the above formula to be 30%, the preset threshold is 5%, and the preset threshold may be set according to actual needs, which is not limited in this application. The absolute value of the difference between the current preset occupation ratio and the CCE occupation ratio required by uplink scheduling is 20% and is greater than the preset threshold value 5%, which indicates that the current preset occupation ratio is unreasonably set, CCE resources reserved for uplink scheduling are not fully utilized, the current preset occupation ratio needs to be adjusted downwards, and the adjustment can be performed according to preset step length when the preset occupation ratio is adjusted downwards, for example: the current preset time interval is adjusted downward by 5% or 10%, the preset step length can be set according to actual needs, and the method is not limited in the application. And continuously adjusting the preset ratio in the above way in the next preset time interval.
In the specific implementation process, the preset ratio may also be adjusted in other manners, such as: if the CCE resource utilization rates of uplink scheduling are smaller than the corresponding preset occupation ratio in N continuous subframes, the preset occupation ratio can be reduced. The preset ratio adjusting mode can be set according to actual needs, and the application is not limited herein.
In the resource allocation method in this embodiment, when PDCCH resource allocation is performed, different CCE resource allocation adjustment strategies may be adopted according to different CCE scheduling conflict types. Specifically, for downlink scheduling and downlink scheduling conflict types or uplink scheduling and uplink scheduling conflict types in the subframe, a method of improving a CCE aggregation level is adopted, so that the success probability of CCE selection is increased, or a method of reducing the CCE aggregation level and improving power is adopted, so that the conflict probability is reduced, and the performance is not lost. For downlink scheduling and uplink scheduling conflict types in the subframe, the resource occupation of the uplink and the downlink is coordinated by adopting a mode of reserving the uplink CCE allocation proportion, and meanwhile, the reservation proportion is dynamically adjusted according to the number of users actually scheduled by the uplink. And then effectively allocating control channel resources, thereby ensuring that air interface PRB resources are not wasted due to CCE conflict, effectively improving the throughput of an uplink and a downlink system, and improving the user perception.
Example two
Referring to fig. 2, based on the same inventive concept as the resource allocation method in the first embodiment, the present embodiment provides a communication device, including:
a judging module 201, configured to judge whether a control channel element CCE scheduling conflict exists in a PDCCH resource allocation stage of a physical downlink control channel;
a determining module 202, configured to determine that a CCE scheduling conflict exists in the determining module, and determine a type of the CCE scheduling conflict;
an adjusting module 203, configured to adjust a CCE aggregation level and/or a transmission power of a PDCCH corresponding to the UE in the subframe to adjust a CCE resource allocated to the UE when it is determined that the type of the CCE scheduling conflict is a conflict type of uplink scheduling and uplink scheduling in the subframe or a conflict type of downlink scheduling and downlink scheduling in the subframe; and when the CCE scheduling conflict type is determined to be the conflict type of uplink scheduling and downlink scheduling in the subframe, reserving CCE resources for the uplink scheduling according to a preset occupation ratio, wherein the preset occupation ratio is the percentage of the number of the reserved CCEs in the number of the available CCEs corresponding to the subframe.
In a possible implementation, the adjusting module 203 is further configured to:
when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, the CCE aggregation level corresponding to the UE is adjusted upwards; or
And adjusting the CCE aggregation level corresponding to the UE downwards and adjusting the transmission power of the PDCCH upwards.
In a possible implementation, the adjusting module 203 is further configured to:
when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, the CCE aggregation level corresponding to the UE is adjusted upwards;
judging whether available CCE resources exist after the CCE aggregation level corresponding to the UE is adjusted upwards;
and if not, adjusting the CCE aggregation level corresponding to the UE downwards and adjusting the transmission power of the PDCCH upwards.
In a possible implementation, the adjusting module 203 further includes:
and the updating submodule is used for adjusting the preset ratio according to a preset time interval.
In a possible embodiment, the update sub-module is further configured to:
counting the number of CCEs (control channel elements) scheduled in an uplink mode and the number of users scheduled in the uplink mode in a preset time interval nearest to the current moment;
acquiring the number of users queued in the current subframe and the number of CCEs available in the current subframe;
estimating CCE occupation ratio required by uplink scheduling based on the number of CCEs scheduled in uplink and the number of users scheduled in uplink in the preset time interval nearest to the current moment, the number of users queued in the current subframe and the number of CCEs available in the current subframe;
and adjusting the preset occupation ratio based on the CCE occupation ratio required by the uplink scheduling.
In a possible embodiment, the update sub-module is further configured to:
judging whether the absolute value of the difference value between the CCE occupation ratio required by the uplink scheduling and the preset occupation ratio is greater than a preset threshold value or not;
if yes, when the CCE occupation ratio required by the uplink scheduling is larger than the preset occupation ratio, the preset occupation ratio is adjusted upwards, and when the CCE occupation ratio required by the uplink scheduling is smaller than the preset occupation ratio, the preset occupation ratio is adjusted downwards.
EXAMPLE III
Referring to fig. 3, based on the same inventive concept as the resource allocation method in the first embodiment, the present embodiment provides a communication device, which includes a processor 301, a memory 302, and a transceiver 303, wherein the transceiver 303 receives and transmits data under the control of the processor 301, the memory 302 stores a preset program therein, and the processor 301 reads the program in the memory 302 and executes the following processes according to the program:
the processor 301 judges whether a control channel element CCE scheduling conflict exists at a PDCCH resource allocation stage; if so, determining the type of the CCE scheduling conflict; when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, adjusting a CCE aggregation level and/or transmission power of a PDCCH corresponding to the UE in the subframe so as to adjust CCE resources distributed to the UE; and when the CCE scheduling conflict type is determined to be the conflict type of uplink scheduling and downlink scheduling in the subframe, reserving CCE resources for the uplink scheduling according to a preset occupation ratio, wherein the preset occupation ratio is the percentage of the number of the reserved CCEs in the number of the available CCEs corresponding to the subframe.
Wherein in fig. 3 the bus architecture may comprise any number of interconnected buses and bridges, with one or more processors, represented by processor 301, and various circuits of memory, represented by memory 302, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 303 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 301 is responsible for managing the bus architecture and general processing, and the memory 302 may store data used by the processor 301 in performing operations.
In a possible implementation, the processor 301 is further configured to:
when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, the CCE aggregation level corresponding to the UE is adjusted upwards; or
And adjusting the CCE aggregation level corresponding to the UE downwards and adjusting the transmission power of the PDCCH upwards.
In a possible implementation, the processor 301 is further configured to:
when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, the CCE aggregation level corresponding to the UE is adjusted upwards;
judging whether available CCE resources exist after the CCE aggregation level corresponding to the UE is adjusted upwards;
and if not, adjusting the CCE aggregation level corresponding to the UE downwards and adjusting the transmission power of the PDCCH upwards.
In a possible implementation, the processor 301 is further configured to:
and when the CCE scheduling conflict type is determined to be the conflict type of uplink scheduling and downlink scheduling in the subframe, reserving CCE resources for the uplink scheduling according to a preset occupation ratio, wherein the preset occupation ratio is the percentage of the number of the reserved CCEs in the number of the available CCEs corresponding to the subframe.
In a possible implementation, the processor 301 is further configured to:
and adjusting the preset ratio according to a preset time interval.
In a possible implementation, the processor 301 is further configured to:
counting the number of CCEs (control channel elements) scheduled in an uplink mode and the number of users scheduled in the uplink mode in a preset time interval nearest to the current moment;
acquiring the number of users queued in the current subframe and the number of CCEs available in the current subframe;
estimating CCE occupation ratio required by uplink scheduling based on the number of CCEs scheduled in uplink and the number of users scheduled in uplink in the preset time interval nearest to the current moment, the number of users queued in the current subframe and the number of CCEs available in the current subframe;
and adjusting the preset occupation ratio based on the CCE occupation ratio required by the uplink scheduling.
In a possible implementation, the processor 301 is further configured to:
judging whether the absolute value of the difference value between the CCE occupation ratio required by the uplink scheduling and the preset occupation ratio is greater than a preset threshold value or not;
if yes, when the CCE occupation ratio required by the uplink scheduling is larger than the preset occupation ratio, the preset occupation ratio is adjusted upwards, and when the CCE occupation ratio required by the uplink scheduling is smaller than the preset occupation ratio, the preset occupation ratio is adjusted downwards.
Based on the technical scheme, in the embodiment of the invention, in the PDCCH resource allocation stage, when the CCE scheduling conflict is detected, the type of the CCE scheduling conflict can be determined, and the strategy for allocating the CCE resources is adaptively adjusted according to the type of the CCE scheduling conflict. And the technical problems that CCE conflict is easily generated when PDCCH resource allocation is carried out in the prior art, the number of users scheduled by a single subframe is reduced, resource waste is caused, and user perception is poor can be effectively solved. The waste of empty physical resources is effectively reduced, the throughput of an uplink and downlink system is effectively improved, and the user perception is improved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (11)

1. A method for resource allocation, comprising:
judging whether a control channel element CCE scheduling conflict exists in a physical downlink control channel PDCCH resource allocation stage;
if so, determining the type of the CCE scheduling conflict;
when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, the CCE aggregation level corresponding to the UE in the subframe is adjusted upwards; or, the CCE aggregation level corresponding to the UE is adjusted down and the transmission power of the PDCCH is adjusted up so as to adjust the CCE resource distributed to the UE;
and when the CCE scheduling conflict type is determined to be the conflict type of uplink scheduling and downlink scheduling in the subframe, reserving CCE resources for the uplink scheduling according to a preset occupation ratio, wherein the preset occupation ratio is the percentage of the number of the reserved CCEs in the number of the available CCEs corresponding to the subframe.
2. The method of claim 1, wherein the method further comprises: and adjusting the preset ratio according to a preset time interval.
3. The method of claim 2, wherein the adjusting the predetermined fraction at predetermined time intervals comprises:
counting the number of CCEs (control channel elements) scheduled in an uplink mode and the number of users scheduled in the uplink mode in a preset time interval nearest to the current moment;
acquiring the number of users queued in the current subframe and the number of CCEs available in the current subframe;
estimating CCE occupation ratio required by uplink scheduling based on the number of CCEs scheduled in uplink and the number of users scheduled in uplink in the preset time interval nearest to the current moment, the number of users queued in the current subframe and the number of CCEs available in the current subframe;
and adjusting the preset occupation ratio based on the CCE occupation ratio required by the uplink scheduling.
4. The method according to claim 3, wherein adjusting the preset ratio based on the CCE ratio required for the uplink scheduling specifically includes:
judging whether the absolute value of the difference value between the CCE occupation ratio required by the uplink scheduling and the preset occupation ratio is greater than a preset threshold value or not;
if yes, when the CCE occupation ratio required by the uplink scheduling is larger than the preset occupation ratio, the preset occupation ratio is adjusted upwards, and when the CCE occupation ratio required by the uplink scheduling is smaller than the preset occupation ratio, the preset occupation ratio is adjusted downwards.
5. A method for resource allocation, comprising:
judging whether a control channel element CCE scheduling conflict exists in a physical downlink control channel PDCCH resource allocation stage;
if so, determining the type of the CCE scheduling conflict;
when the CCE scheduling conflict type is determined to be an uplink scheduling conflict type in a subframe or a downlink scheduling conflict type in the subframe, the CCE aggregation level corresponding to the UE is adjusted upwards;
judging whether available CCE resources exist after the CCE aggregation level corresponding to the UE is adjusted upwards;
and if not, adjusting the CCE aggregation level corresponding to the UE downwards and adjusting the transmission power of the PDCCH upwards so as to adjust the CCE resources distributed to the UE.
6. A communication device, comprising:
the judging module is used for judging whether a control channel element CCE scheduling conflict exists in a physical downlink control channel PDCCH resource allocation stage;
a determining module, configured to determine that a CCE scheduling conflict exists in the determining module, and determine a type of the CCE scheduling conflict;
an adjusting module, configured to, when it is determined that the type of the CCE scheduling conflict is a conflict type of uplink scheduling and uplink scheduling in a subframe or a conflict type of downlink scheduling and downlink scheduling in a subframe, up-adjust a CCE aggregation level corresponding to the UE in the subframe; or
Adjusting down the CCE aggregation level corresponding to the UE and up-regulating the transmission power of the PDCCH so as to adjust the CCE resources distributed to the UE; and when the CCE scheduling conflict type is determined to be the conflict type of uplink scheduling and downlink scheduling in the subframe, reserving CCE resources for the uplink scheduling according to a preset occupation ratio, wherein the preset occupation ratio is the percentage of the number of the reserved CCEs in the number of the available CCEs corresponding to the subframe.
7. The device of claim 6, wherein the adjustment module further comprises:
and the updating submodule is used for adjusting the preset ratio according to a preset time interval.
8. The device of claim 7, wherein the update submodule is further to:
counting the number of CCEs (control channel elements) scheduled in an uplink mode and the number of users scheduled in the uplink mode in a preset time interval nearest to the current moment;
acquiring the number of users queued in the current subframe and the number of CCEs available in the current subframe;
estimating CCE occupation ratio required by uplink scheduling based on the number of CCEs scheduled in uplink and the number of users scheduled in uplink in the preset time interval nearest to the current moment, the number of users queued in the current subframe and the number of CCEs available in the current subframe;
and adjusting the preset occupation ratio based on the CCE occupation ratio required by the uplink scheduling.
9. The device of claim 8, wherein the update submodule is further to:
judging whether the absolute value of the difference value between the CCE occupation ratio required by the uplink scheduling and the preset occupation ratio is greater than a preset threshold value or not;
if yes, when the CCE occupation ratio required by the uplink scheduling is larger than the preset occupation ratio, the preset occupation ratio is adjusted upwards, and when the CCE occupation ratio required by the uplink scheduling is smaller than the preset occupation ratio, the preset occupation ratio is adjusted downwards.
10. A communication device, comprising:
the judging module is used for judging whether a control channel element CCE scheduling conflict exists in a physical downlink control channel PDCCH resource allocation stage;
a determining module, configured to determine that a CCE scheduling conflict exists in the determining module, and determine a type of the CCE scheduling conflict;
an adjusting module, configured to, when it is determined that the type of the CCE scheduling conflict is a conflict type of uplink scheduling and uplink scheduling in a subframe or a conflict type of downlink scheduling and downlink scheduling in a subframe, up-adjust a CCE aggregation level corresponding to the UE;
the judging module is further configured to judge whether available CCE resources exist after the CCE aggregation level corresponding to the UE is adjusted up;
the adjusting module is further configured to, when the determining module determines that no available CCE resource is available after the CCE aggregation level corresponding to the UE is adjusted up, down-adjust the CCE aggregation level corresponding to the UE and up-adjust the transmission power of the PDCCH to adjust the CCE resource allocated to the UE.
11. A communication device comprising a processor, a memory and a transceiver, wherein the transceiver receives and transmits data under the control of the processor, and wherein the memory stores a predetermined program, wherein the processor, when reading the program in the memory, implements the steps of the method according to any one of claims 1 to 5.
CN201710428944.2A 2017-06-08 2017-06-08 Resource allocation method and communication equipment Active CN109041118B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710428944.2A CN109041118B (en) 2017-06-08 2017-06-08 Resource allocation method and communication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710428944.2A CN109041118B (en) 2017-06-08 2017-06-08 Resource allocation method and communication equipment

Publications (2)

Publication Number Publication Date
CN109041118A CN109041118A (en) 2018-12-18
CN109041118B true CN109041118B (en) 2020-11-20

Family

ID=64629620

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710428944.2A Active CN109041118B (en) 2017-06-08 2017-06-08 Resource allocation method and communication equipment

Country Status (1)

Country Link
CN (1) CN109041118B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112055413B (en) * 2019-06-05 2023-06-30 成都鼎桥通信技术有限公司 Downlink service scheduling method and device
CN113473605A (en) * 2020-03-30 2021-10-01 维沃移动通信有限公司 Conflict resource determination method and terminal
KR20230043152A (en) * 2020-08-05 2023-03-30 애플 인크. Slot Aggregation and Selective Prioritization for Uplink and Sidelink Feedback Communications

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102307371A (en) * 2011-08-31 2012-01-04 新邮通信设备有限公司 Resource scheduling method and device in long term evolution system
CN102412950A (en) * 2011-11-15 2012-04-11 中兴通讯股份有限公司 Coordination system of power of downlink control channel and method thereof
CN103716888A (en) * 2012-09-29 2014-04-09 普天信息技术研究院有限公司 Control channel resource allocation method and base station
CN104684086A (en) * 2013-11-28 2015-06-03 普天信息技术研究院有限公司 Method for controlling channel unit distribution
CN104717748A (en) * 2013-12-11 2015-06-17 北京三星通信技术研究有限公司 Physical downlink control channel (PDCCH) resource allocation method and device
CN105794280A (en) * 2013-12-05 2016-07-20 Lg电子株式会社 Method and apparatus for controlling uplink transmission power in wireless access system supporting machine-type communication

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5719085B2 (en) * 2011-10-24 2015-05-13 エルジー エレクトロニクス インコーポレイティド Method and apparatus for allocating resources in a wireless communication system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102307371A (en) * 2011-08-31 2012-01-04 新邮通信设备有限公司 Resource scheduling method and device in long term evolution system
CN102412950A (en) * 2011-11-15 2012-04-11 中兴通讯股份有限公司 Coordination system of power of downlink control channel and method thereof
CN103716888A (en) * 2012-09-29 2014-04-09 普天信息技术研究院有限公司 Control channel resource allocation method and base station
CN104684086A (en) * 2013-11-28 2015-06-03 普天信息技术研究院有限公司 Method for controlling channel unit distribution
CN105794280A (en) * 2013-12-05 2016-07-20 Lg电子株式会社 Method and apparatus for controlling uplink transmission power in wireless access system supporting machine-type communication
CN104717748A (en) * 2013-12-11 2015-06-17 北京三星通信技术研究有限公司 Physical downlink control channel (PDCCH) resource allocation method and device

Also Published As

Publication number Publication date
CN109041118A (en) 2018-12-18

Similar Documents

Publication Publication Date Title
JP6009072B2 (en) DCI transmission method and apparatus for inter-band carrier aggregation
CN102131297B (en) Method and equipment for allocating uplink resource
US10499415B2 (en) Base station and user equipment for mobile communication system
CN110574325A (en) determining priority order based on uplink transmission parameters
CN110278062A (en) Resource instruction determines method and device
CN109392148B (en) Uplink resource allocation method, terminal and network equipment
WO2010112086A1 (en) Communication resource allocation strategy
CN106102169B (en) PUCCH resource configuration method and base station in a kind of LTE system
CN110971360A (en) Resource allocation method, base station and terminal
US20190174428A1 (en) Uplink channel sending method and apparatus
CN108650709B (en) Uplink transmission power distribution method and mobile communication system
CN109041118B (en) Resource allocation method and communication equipment
WO2019214283A1 (en) Uplink transmission power distribution method and mobile communication device
CN108811135B (en) Data transmission method and device
JP6756901B2 (en) Methods and devices for feeding down link data
CN104812079A (en) PDCCH (physical downlink control channel) resource distribution method and device
WO2018001345A1 (en) Method and device for scheduling pucch resource
CN105611638B (en) A kind of method of dispatch terminal and base station
WO2021016968A1 (en) Method and apparatus for determining uplink channel transmission mode, and device and medium
CN107295643B (en) Scheduling method, device and equipment
CN112004268B (en) Resource scheduling method and device
JP6904511B2 (en) Information transmission method and equipment
CN108183775A (en) A kind of ascending control information processing method and equipment
CN107567095B (en) Physical uplink control channel PUCCH resource allocation method and base station
CN107124772B (en) Resource scheduling method and device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant