CN111555839B - Method and equipment for allocating uplink carrier resources in carrier aggregation - Google Patents

Method and equipment for allocating uplink carrier resources in carrier aggregation Download PDF

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CN111555839B
CN111555839B CN201910110085.1A CN201910110085A CN111555839B CN 111555839 B CN111555839 B CN 111555839B CN 201910110085 A CN201910110085 A CN 201910110085A CN 111555839 B CN111555839 B CN 111555839B
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carrier
semi
uplink
uplink carrier
static
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CN111555839A (en
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魏立梅
袁乃华
范晨
朱玉梅
周志宏
陈贵荣
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Chengdu TD Tech Ltd
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Chengdu TD Tech Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • 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
    • 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
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

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  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a method and equipment for allocating uplink carrier resources in carrier aggregation, wherein the method comprises the following steps: the eNodeB determines an uplink carrier scheduled by each downlink carrier, allocates a CA (Carrier aggregation) dedicated semi-static resource to the UE, determines configuration information of the CA dedicated semi-static resource, sends the configuration information of the CA dedicated semi-static resource to the UE through an RRC (radio resource control) dedicated signaling, selects one carrier from the determined downlink carriers for scheduling the uplink carriers when determining to activate or deactivate a certain CA dedicated semi-static resource on a certain uplink carrier, and sends a control channel scrambled by a Special SPS C-RNTI (Cyclic redundancy check) on the carrier to the UE so that the UE activates or deactivates the corresponding CA dedicated semi-static resource on the corresponding uplink carrier.

Description

Method and equipment for allocating uplink carrier resources in carrier aggregation
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a method and equipment for allocating uplink carrier resources in carrier aggregation.
Background
In a Long Term Evolution (Long Term Evolution, LTE for short) system, there are the following two typical carrier aggregation scenarios. The first scenario is mainly applied to the scenario that the downlink service requirement is greater than or equal to the uplink service requirement, and the second scenario is mainly applied to the scenario that the uplink service requirement is greater than the downlink service requirement.
Scene one: the number of the downlink component carriers is more than or equal to the number of the uplink component carriers;
scene two: the number of uplink component carriers is greater than the number of downlink component carriers;
in the second scenario, a situation that one downlink carrier schedules multiple uplink carriers at the same time occurs. In this case, the resource of the uplink carrier is not fully utilized due to the shortage of the control channel resource on the downlink carrier.
Disclosure of Invention
The embodiment of the invention provides a method and equipment for allocating uplink carrier resources in carrier aggregation, which aim to solve the problem that when one downlink carrier simultaneously schedules a plurality of uplink carriers, the resources of the uplink carriers are not fully utilized due to the shortage of control channel resources on the downlink carrier.
In a first aspect, an embodiment of the present invention provides a method for allocating uplink carrier resources in carrier aggregation, including:
an evolved node B (evolved NodeB, abbreviated eNodeB) allocates uplink carriers and downlink carriers to a User Equipment (UE) according to a service application of the UE and capability information of the UE, determines, for each downlink Carrier allocated to the UE, each uplink Carrier scheduled by each downlink Carrier, and allocates, for any uplink Carrier allocated to the UE, a Carrier Aggregation (CA) dedicated semi-static resource on the uplink Carrier to the UE as needed;
when the eNodeB allocates at least one CA-dedicated semi-static resource to the UE on at least one uplink carrier, the eNodeB determines configuration information of each CA-dedicated semi-static resource on each uplink carrier allocated to the UE, and for the UE allocated with at least one CA-dedicated semi-static resource, the eNodeB allocates one Radio Network Temporary Identity (RNTI) to the UE: special semi-static Special SPS C-RNTI;
an eNodeB sends a Radio Resource Control (RRC) dedicated signaling to a UE, where information carried in the signaling includes: special SPS C-RNTI; configuration information of each CA dedicated semi-static resource allocated to each uplink carrier of the UE; and subscripts of each uplink carrier scheduled by each downlink carrier;
after the eNodeB receives response information fed back by the UE, when the eNodeB decides to activate or deactivate a CA Special semi-static resource on an uplink carrier configured to the UE, the eNodeB selects a carrier from downlink carriers which are predetermined and schedule the uplink carrier, and sends a control channel scrambled by a Special SPS C-RNTI for Cyclic Redundancy Check (CRC) to the UE on the carrier, wherein a DCI format carried on the control channel carries a CA Special semi-static resource state indication, a carrier subscript of the uplink carrier and the CA Special semi-static resource subscript, wherein the value of the CA Special semi-static resource state indication is TURE or FALSE and is respectively used for indicating the UE to activate or deactivate the CA Special semi-static resource indicated by the CA Special semi-static resource subscript on the uplink carrier indicated by the uplink carrier subscript, so that the UE monitors the control channel scrambled by the Special SPS C-RNTI for CRC, and activating or deactivating corresponding CA special semi-static resources on corresponding uplink carriers according to the value of the CA special semi-static resource state indication in the DCI format loaded on the control channel.
In one possible design, after determining, for each downlink carrier allocated to the UE, a respective uplink carrier scheduled by each downlink carrier, the method further includes:
when a certain downlink carrier schedules a plurality of uplink carriers, the eNodeB allocates a carrier subscript to each scheduled uplink carrier.
In one possible design, the configuration information of the CA-dedicated semi-static resources on the uplink carrier includes:
uplink carrier subscript: the carrier subscript of the uplink carrier where the CA special semi-static resource is located;
SPS resource subscript: if a plurality of CA special semi-static resources are allocated to the same UE on one uplink carrier, allocating a subscript to each CA special semi-static resource;
scheduling period T: the scheduling period of the CA special semi-static resource is T wireless frames;
and a subframe set A: a set of uplink subframes allocated to the UE in one scheduling period;
physical Uplink Shared Channel (PUSCH) configuration information: RB resources occupied by PUSCH, the number of code words carried, and a Modulation and Coding Scheme (MCS) adopted by each code word;
implicit release indication: the UE idle times are used for indicating the waiting times before the eNodeB releases the CA dedicated semi-static resources;
number of Hybrid Automatic Repeat reQuest (HARQ) processes: the number of HARQ processes used for CA-specific semi-static resource transmission;
redundancy Version (Redundancy Version, RV) indicates: when the information exists, the RV version 0 is adopted for each retransmission; otherwise, each retransmission circularly uses RV versions 0, 1, 2 and 3 from RV version 0;
and the power control parameters of the CA special semi-static resources.
In one possible design, the RRC-dedicated signaling is an RRC connection reconfiguration message;
the eNodeB sending the RRC dedicated signaling to the UE comprises:
when UE accesses a cell, an eNodeB sends an RRC connection reconfiguration message to the UE through a Downlink carrier of the cell accessed by the UE, in other resource allocation scenes, the eNodeB selects one carrier from the Downlink carriers allocated to the UE and sends the RRC connection reconfiguration message to the UE, wherein a Physical Downlink Shared CHannel (PDSCH) bearing the RRC connection reconfiguration message is scrambled by using a C-RNTI on the corresponding Downlink carrier, and scheduling information of the PDSCH is carried to the UE through a Physical Downlink Control CHannel (PDCCH) of which the CRC is scrambled by using the C-RNTI.
In a second aspect, an embodiment of the present invention provides an apparatus for allocating uplink carrier resources in carrier aggregation, including:
the resource allocation module is used for the eNodeB to allocate uplink carriers and downlink carriers to the UE according to the service application of the UE and the capability information of the UE, determine each uplink carrier scheduled by each downlink carrier for each downlink carrier allocated to the UE, and allocate CA (access control) special semi-static resources on the uplink carriers to the UE according to the requirements for any uplink carrier allocated to the UE;
a configuration information determining module, configured to, when the eNodeB allocates at least one CA-dedicated semi-static resource to the UE on at least one uplink carrier, the eNodeB determines configuration information of each CA-dedicated semi-static resource on each uplink carrier allocated to the UE, and for the UE allocated with at least one CA-dedicated semi-static resource, the eNodeB allocates an RNTI to the UE: special semi-static Special SPS C-RNTI;
a configuration information sending module, configured to send, by an eNodeB, an RRC dedicated signaling to a UE, where information carried in the signaling includes: special SPS C-RNTI; configuration information of each CA dedicated semi-static resource allocated to each uplink carrier of the UE; and subscripts of each uplink carrier scheduled by each downlink carrier;
a resource activation and deactivation module, configured to, after the eNodeB receives response information fed back by the UE, when determining to activate or deactivate a CA dedicated semi-persistent resource on a certain uplink carrier configured to the UE, the eNodeB selects a carrier from downlink carriers scheduling the uplink carrier in advance, and sends a control channel scrambled with a Special SPS C-RNTI to the UE on the carrier, where in a DCI format carried on the control channel, a CA dedicated semi-persistent resource status indication is carried, and a carrier index and a CA dedicated semi-persistent resource index of the uplink carrier, where the value of the CA dedicated semi-persistent resource status indication is tune or FALSE, and the CA dedicated semi-persistent resource indicated by the CA dedicated semi-persistent resource index on the uplink carrier indicated by the uplink carrier index is respectively used to indicate the UE to activate or deactivate the CA dedicated semi-persistent resource on the uplink carrier indicated by the uplink carrier index, so that the UE monitors the control channel scrambled with the Special SPS C-RNTI, and activating or deactivating corresponding CA special semi-static resources on corresponding uplink carriers according to the value of the CA special semi-static resource state indication in the DCI format loaded on the control channel.
In a possible design, the eNodeB in the resource allocation module allocates an uplink carrier and a downlink carrier to the UE according to the service application of the UE and the capability information of the UE, and after determining each uplink carrier scheduled by each downlink carrier for each downlink carrier allocated to the UE, the method further includes:
when a certain downlink carrier schedules a plurality of uplink carriers, the eNodeB allocates a carrier subscript to each scheduled uplink carrier.
In one possible design, the configuration information of the CA-dedicated semi-static resources on the uplink carrier includes:
uplink carrier subscript: the carrier subscript of the uplink carrier where the CA special semi-static resource is located;
SPS resource subscript: if a plurality of CA special semi-static resources are allocated to the same UE on one uplink carrier, allocating a subscript to each CA special semi-static resource;
scheduling period T: the scheduling period of the CA special semi-static resource is T wireless frames;
and a subframe set A: a set of uplink subframes allocated to the UE in one scheduling period;
and PUSCH configuration information: RB resources occupied by PUSCH, the number of loaded code words and MCS adopted by each code word;
implicit release indication: the UE idle times are used for indicating the waiting times before the eNodeB releases the CA dedicated semi-static resources;
number of HARQ processes: the number of HARQ processes used for CA-specific semi-static resource transmission;
RV indicates: when the information exists, the RV version 0 is adopted for each retransmission; otherwise, each retransmission circularly uses RV versions 0, 1, 2 and 3 from RV version 0;
and the power control parameters of the CA special semi-static resources.
In one possible design, the RRC-dedicated signaling is an RRC connection reconfiguration message;
the sending of the RRC dedicated signaling to the UE by the eNodeB in the configuration information sending module includes:
when the UE is accessed to the cell, the eNodeB sends the RRC connection reconfiguration message to the UE through the downlink carrier of the cell accessed by the UE, and in other resource allocation scenes, the eNodeB selects one carrier from the downlink carriers allocated to the UE and sends the RRC connection reconfiguration message to the UE, wherein the PDSCH bearing the RRC connection reconfiguration message is scrambled by using the C-RNTI on the corresponding downlink carrier, and the scheduling information of the PDSCH is carried to the UE through the PDCCH scrambled by using the C-RNTI on the CRC.
In a third aspect, an embodiment of the present invention provides an apparatus for allocating uplink carrier resources in carrier aggregation, including: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor executes the method for allocating uplink carrier resources in carrier aggregation according to the first aspect and various possible designs of the first aspect.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer executes instructions, and when a processor executes the computer to execute the instructions, the method for allocating uplink carrier resources in carrier aggregation according to the first aspect and various possible designs of the first aspect is implemented.
The method and apparatus for allocating uplink carrier resources in carrier aggregation provided by this embodiment includes allocating, by an eNodeB, a downlink carrier and an uplink carrier to a UE, determining each uplink carrier scheduled by each downlink carrier, allocating, according to a need, a CA dedicated semi-persistent resource on a certain uplink carrier to the UE, determining configuration information of each CA dedicated semi-persistent resource allocated to the UE, sending the configuration information to the UE through an RRC dedicated signaling, and after receiving response information fed back by the UE, when determining to activate or deactivate a CA dedicated semi-persistent resource configured on a certain uplink carrier of the UE, selecting one carrier from the predetermined downlink carriers that schedule the uplink carrier, sending a control channel scrambled with a Special SPS C-RNTI to the UE on the carrier, so that when the UE monitors a control channel scrambled with a Special SPS C-RNTI, the UE activates or deactivates the control channel according to a value indicated by a CA dedicated semi-persistent resource status in a DCI format carried on the control channel The corresponding CA special semi-static resource on the corresponding uplink carrier is activated, the problem that the resource of the uplink carrier is not fully utilized due to the shortage of control channel resources on the downlink carrier when one downlink carrier simultaneously schedules a plurality of uplink carriers is solved, the resource of the uplink carrier is ensured to be fully utilized, and meanwhile, the air interface uplink resource is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a first flowchart illustrating a method for allocating uplink carrier resources in carrier aggregation according to an embodiment of the present invention;
fig. 2 is a second flowchart illustrating a method for allocating uplink carrier resources in carrier aggregation according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an apparatus for allocating uplink carrier resources in carrier aggregation according to an embodiment of the present invention;
fig. 4 is a schematic hardware structure diagram of an apparatus for allocating uplink carrier resources in carrier aggregation according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.
There are the following two typical carrier aggregation scenarios in LTE systems. The first scenario is mainly applied to the scenario that the downlink service requirement is greater than or equal to the uplink service requirement, and the second scenario is mainly applied to the scenario that the uplink service requirement is greater than the downlink service requirement.
Scene one: the number of the downlink component carriers is more than or equal to the number of the uplink component carriers;
scene two: the number of uplink component carriers is greater than the number of downlink component carriers;
in the second scenario, a situation that one downlink carrier schedules multiple uplink carriers at the same time occurs. In this case, the resource of the uplink carrier is not fully utilized due to the shortage of the control channel resource on the downlink carrier.
In order to solve the above problem, the present invention provides a method for allocating uplink carrier resources in carrier aggregation, comprising: an eNodeB (evolved NodeB: evolved node B) allocates a number of downlink carriers and a number of uplink carriers to a UE, and allocates CA (Carrier Aggregation) dedicated semi-static resources to the UE on the uplink carriers, and compared with the semi-static resources, the CA dedicated semi-static resources can simultaneously schedule a plurality of uplink subframes in one scheduling period, and configuration information of a PUSCH on each uplink subframe can be completely the same or different, and can allocate CA dedicated semi-static resources to the UE on a plurality of uplink carriers, and can allocate a plurality of CA dedicated semi-static resources to the UE on one uplink Carrier. The eNodeB can activate one or more CA dedicated semi-static resources according to the service condition of the UE, so that the UE transmits uplink service data of the UE through each activated CA dedicated semi-static resource, thereby solving the problem that the uplink carrier resources are not fully utilized under the condition that the control channel resources on the downlink carrier are in short supply. The eNodeB may also deactivate one or more CA-specific semi-static resources according to the traffic situation of the UE, so that the UE releases the deactivated CA-specific semi-static resources, so that the CA-specific semi-static resources may be allocated to other UEs for use.
For a CA dedicated semi-persistent resource, when the PUSCH configuration information on each scheduled uplink subframe is different in a scheduling period, if the total number of different PUSCH configuration information on the uplink subframes is N, the CA dedicated semi-persistent resource may be decomposed into N sub-semi-persistent resources: the scheduling period of each sub semi-static resource is equal to the scheduling period of the CA special semi-static resource, and the configuration information of the PUSCH on each uplink subframe scheduled by each sub-semi-static resource in one scheduling period is the same. Such as: the scheduling period of one CA dedicated semi-persistent resource is T, three subframes a1, a2 and A3 are scheduled in each scheduling period, a1 and A3 have the same PUSCH configuration information, and the PUSCH configuration information of a2 is different. According to the decomposition method of the CA-dedicated semi-static resource, the CA-dedicated semi-static resource can be decomposed into two sub-semi-static resources: the scheduling period of the first sub semi-static resource is T, and two uplink sub-frames are scheduled in each scheduling period: a1 and A3, the scheduling period of the second semi-static resource is T, and an uplink subframe is scheduled in each scheduling period: A2.
based on the decomposition method of the CA dedicated semi-persistent resource, in the following description of the CA dedicated semi-persistent resource, the same description is performed according to the configuration information of the PUSCH on each uplink subframe in one scheduling period.
Specifically, the method for allocating uplink carrier resources in carrier aggregation provided by the present invention is: an eNodeB allocates a plurality of downlink carriers and a plurality of uplink carriers to UE, allocates CA (carrier aggregation) special semi-static resources to the UE on the uplink carriers, determines configuration information of the CA special semi-static resources, and sends the configuration information of each CA special semi-static resource allocated to each uplink carrier of the UE to the UE through an RRC (radio resource control) special signaling on a certain downlink carrier allocated to the UE so that the UE determines each CA special semi-static resource allocated to each uplink carrier of the UE according to the configuration information; after receiving a response message fed back by the UE, when the eNodeB decides to activate a certain CA dedicated semi-static resource on a certain uplink carrier, the eNodeB selects a downlink carrier, and sends a command for activating the target CA dedicated semi-static resource on the target uplink carrier to the UE through a control channel on the carrier, so that the UE activates the target CA dedicated semi-static resource on the target uplink carrier according to the command, thereby solving the problem that the resource of the uplink carrier is not fully utilized due to the lack of control channel resources on the downlink carrier when a plurality of uplink carriers are simultaneously scheduled by one downlink carrier, and ensuring that the resource of the uplink carrier is fully utilized. When the eNodeB decides to deactivate a certain CA dedicated semi-static resource on a certain uplink carrier, the eNodeB selects a downlink carrier, and sends a command for deactivating the target CA dedicated semi-static resource on the target uplink carrier to the UE through a control channel on the carrier, so that the UE releases the target CA dedicated semi-static resource on the target uplink carrier in time according to the command, and the deactivated CA dedicated semi-static resource can be allocated to other UEs for use, thereby saving air interface uplink resources.
Fig. 1 is a first flowchart illustrating a method for allocating uplink carrier resources in carrier aggregation according to an embodiment of the present invention, where an execution subject of the embodiment is an eNodeB. As shown in fig. 1, the method may include:
s101, an eNodeB allocates uplink carriers and downlink carriers to UE according to the service application of the UE and the capability information of the UE, determines each uplink carrier which can be scheduled by each downlink carrier for each downlink carrier allocated to the UE, and allocates CA (CA) special semi-static resources on the uplink carriers to the UE according to requirements for any uplink carrier allocated to the UE.
Optionally, for each downlink carrier allocated to the UE, after determining each uplink carrier scheduled by each downlink carrier, the method further includes:
when a certain downlink carrier schedules a plurality of uplink carriers, the eNodeB allocates a carrier subscript to each scheduled uplink carrier.
S102, when the eNodeB allocates at least one CA-dedicated semi-static resource to the UE on at least one uplink carrier, the eNodeB determines the configuration information of each CA-dedicated semi-static resource on each uplink carrier allocated to the UE, and for the UE allocated with at least one CA-dedicated semi-static resource, the eNodeB allocates an RNTI to the UE: special semi-static Special SPS C-RNTI.
Optionally, the configuration information of the CA dedicated semi-static resource on the uplink carrier includes:
uplink carrier subscript: the carrier subscript of the uplink carrier where the CA special semi-static resource is located;
SPS resource subscript: if a plurality of CA special semi-static resources are allocated to the same UE on one uplink carrier, allocating a subscript to each CA special semi-static resource;
scheduling period T: the scheduling period of the CA special semi-static resource is T wireless frames;
and a subframe set A: a set of uplink subframes allocated to the UE in one scheduling period;
and PUSCH configuration information: RB resources occupied by PUSCH, the number of loaded code words and MCS adopted by each code word;
implicit release indication: the UE idle times are used for indicating the waiting times before the eNodeB releases the CA dedicated semi-static resources;
number of HARQ processes: the number of HARQ processes used for CA-specific semi-static resource transmission;
RV indicates: when the information exists, the RV version 0 is adopted for each retransmission; otherwise, each retransmission circularly uses RV versions 0, 1, 2 and 3 from RV version 0;
and the power control parameters of the CA special semi-static resources.
S103, the eNodeB sends RRC dedicated signaling to the UE, wherein the information carried in the signaling comprises: special SPS C-RNTI; configuration information of each CA dedicated semi-static resource allocated to each uplink carrier of the UE; and subscripts of the respective uplink carriers that can be scheduled by each downlink carrier.
Optionally, the RRC dedicated signaling is an RRC connection reconfiguration message;
the eNodeB sending the RRC dedicated signaling to the UE comprises:
when the UE is accessed to the cell, the eNodeB sends the RRC connection reconfiguration message to the UE through the downlink carrier of the cell accessed by the UE, and in other resource allocation scenes, the eNodeB selects one carrier from the downlink carriers allocated to the UE and sends the RRC connection reconfiguration message to the UE, wherein the PDSCH bearing the RRC connection reconfiguration message is scrambled by using the C-RNTI on the corresponding downlink carrier, and the scheduling information of the PDSCH is carried to the UE through the PDCCH scrambled by using the C-RNTI on the CRC.
S104, after the eNodeB receives the response information fed back by the UE, when the eNodeB decides to activate or deactivate a CA Special semi-static resource configured on a certain uplink carrier of the UE, the eNodeB selects a carrier from the downlink carriers of the uplink carrier in predetermined scheduling, and sends a control channel scrambled by Special SPS C-RNTI to the UE on the carrier, wherein a DCI format carried on the control channel carries a CA Special semi-static resource state indication, a carrier subscript of the uplink carrier and the CA Special semi-static resource subscript, wherein the CA Special semi-static resource state indication is TURE or FALSE and is respectively used for indicating the UE to activate or deactivate the CA Special semi-static resource indicated by the CA Special semi-static resource subscript on the uplink carrier indicated by the uplink carrier, so that the UE monitors the control channel scrambled by the Special SPS C-RNTI, and activating or deactivating corresponding CA special semi-static resources on corresponding uplink carriers according to the value of the CA special semi-static resource state indication in the DCI format loaded on the control channel.
The method for allocating uplink carrier resources in carrier aggregation provided by this embodiment is as follows: eNodeB allocates downlink carrier and uplink carrier to UE, determines each uplink carrier scheduled by each downlink carrier, allocates CA dedicated semi-static resource on a certain uplink carrier to the UE according to the requirement, determines the configuration information of each CA dedicated semi-static resource allocated to the UE, sends the configuration information of each CA dedicated semi-static resource to the UE through RRC dedicated signaling, after receiving response information fed back by the UE, when determining to activate or deactivate a certain CA dedicated semi-static resource configured on a certain uplink carrier of the UE, selects a carrier from the predetermined downlink carriers scheduled with the uplink carrier, sends control channel with Special SPS C-scrambling for CRC to the UE on the carrier, so that when the UE monitors the control channel scrambled by the Special SPS C-RNTI for CRC, the UE activates or deactivates the corresponding Special CA semi-static resource state indication value on the corresponding uplink carrier according to the value of the CA dedicated semi-static resource state indication in DCI format carried on the control channel The state resource solves the problem that when one downlink carrier wave schedules a plurality of uplink carrier waves simultaneously, the resource of the uplink carrier waves is not fully utilized due to the shortage of control channel resources on the downlink carrier waves, ensures that the resource of the uplink carrier waves is fully utilized, and saves the air interface uplink resource.
Fig. 2 is a second flowchart illustrating a method for allocating uplink carrier resources in carrier aggregation according to an embodiment of the present invention, and this embodiment describes a specific implementation process of this embodiment in detail on the basis of the embodiment of fig. 1. As shown in fig. 2, the method may include:
s201, an eNodeB allocates uplink carriers and downlink carriers to the UE according to the service application of the UE and the capability information of the UE, and determines each uplink carrier which can be scheduled by the carrier for each downlink carrier allocated to the UE. For any uplink carrier allocated to the UE, the eNodeB allocates the CA-dedicated semi-static resources on that uplink carrier to the UE as needed.
In the embodiment of the invention, the eNodeB allocates the CA dedicated semi-static resource to the UE on one uplink carrier, allocates a plurality of uplink subframes in one period to the UE, and determines the PUSCH resource allocated to the UE in the subframes, the number of code words borne on the PUSCH and the MCS adopted by each code word.
When the UE accesses the cell or in other necessary scenarios, the eNodeB allocates resources to the UE according to the service application of the UE and the capability information of the UE, which is specifically as follows:
when the UE accesses a cell of the eNodeB, the UE reports a Service application and Radio capability information to the core network, and the core network negotiates with the eNodeB according to the Service application of the UE, so that the eNodeB establishes a Radio Access Bearer (RAB) with a corresponding Quality of Service (QoS) for the Service application of the UE, and forwards the Radio capability information of the UE to the eNodeB.
The eNodeB allocates uplink carriers and downlink carriers to the UE according to the QoS of the RAB bearer which needs to be established and the wireless capability information of the UE, and determines each uplink carrier which can be scheduled by each downlink carrier. For each downlink carrier, when the carrier can schedule multiple uplink carriers, the eNodeB assigns a carrier index to each uplink carrier that can be scheduled, so as to distinguish different uplink carriers when the uplink carrier is scheduled by the downlink carrier.
In order to save resources occupied by a control channel on a downlink carrier, for any uplink carrier allocated to the UE, the eNodeB determines whether CA (conditional access) special semi-static resources on the uplink carrier need to be allocated to the UE according to QoS (quality of service) information of each uplink RAB of the UE, resource utilization rate of the uplink carrier and other information. If needed, the eNodeB allocates CA-specific semi-static resources to the UE on the uplink carrier.
After the resource allocation process when the UE accesses the cell is completed, the eNodeB may also reallocate the uplink carriers and the downlink carriers to the UE according to the radio channel conditions of the UE on each allocated uplink carrier and each allocated downlink carrier and the resource utilization conditions of these carriers, and re-determine whether to allocate CA-dedicated semi-static resources to the UE on each allocated uplink carrier.
When the service application of the UE changes (for example, the UE adds an RAB bearer) or the cell resource of the eNodeB changes (for example, the eNodeB adds a cell or one cell is blocked), the eNodeB reallocates the uplink carrier and the downlink carrier to the UE, and determines whether to allocate CA-dedicated semi-static resources to the UE on each allocated uplink carrier.
S202, when the eNodeB allocates at least one CA-specific semi-static resource to the UE on at least one uplink carrier, the eNodeB determines the configuration information of each CA-specific semi-static resource allocated to the UE. For a UE that is allocated at least one CA-specific semi-static resource, the eNodeB allocates to the UE an RNTI: special SPS C-RNTI.
The role of Special SPS C-RNTI includes:
(1) the PUSCH corresponding to the CA special semi-static resource is scrambled by the RNTI;
(2) the CRCs of control channels (PDCCH, EPDCCH, MPDCCH, and SPDCCH) that activate or deactivate CA-specific semi-static resources are scrambled with the RNTI.
The configuration information of the CA dedicated semi-static resource on the uplink carrier may include:
(1) uplink carrier subscript: and the carrier subscript of the uplink carrier where the CA special semi-static resource is located.
(2) Special SPS resource subscript: in order to distinguish between multiple CA-specific semi-static resources allocated to the same UE on one uplink carrier, each CA-specific semi-static resource is assigned a subscript.
(3) Scheduling period T: the scheduling period of the CA dedicated semi-static resource is T wireless frames.
(4) And a subframe set A: a set of respective uplink subframes allocated to the UE in one scheduling period.
(5) And PUSCH configuration information: the RB resources occupied by the PUSCH, the number of the carried code words and the MCS adopted by each code word.
(6) Implicit release indication N: for indicating the number of UE nulls waiting before the eNodeB releases the CA-dedicated semi-static resources. Namely: if the UE side does not transmit data on the special semi-static resource in N consecutive scheduling periods, the eNodeB side considers: the UE releases the CA-specific semi-static resources in an implicit way.
(7) Number of HARQ processes K: number of HARQ processes used for CA-dedicated semi-static resource transmission.
(8) RV indicates: when the information exists, the RV version 0 is adopted for each retransmission; otherwise, RV versions 0, 1, 2, and 3 are cyclically used from RV version 0 every retransmission.
(9) And the power control parameters of the CA special semi-static resources.
S203, the eNodeB sends RRC dedicated signaling to the UE. Wherein, the information carried in the signaling includes: special SPS C-RNTI; configuration information of CA dedicated semi-static resources allocated to each uplink carrier of the UE; subscript of each uplink carrier that each downlink carrier can schedule.
Preferably, the RRC dedicated signaling is an RRC connection reconfiguration message.
When the UE accesses the cell, the RRC connection reconfiguration message may be sent to the UE through a downlink carrier of the cell accessed by the UE.
In other resource allocation scenarios, one carrier may be selected from the downlink carriers allocated to the UE, and the RRC connection reconfiguration message may be sent to the UE.
And on the corresponding downlink carrier, the PDSCH carrying the RRC connection reconfiguration message is scrambled by using the C-RNTI, and the scheduling information of the PDSCH can be carried to the UE by using the PDCCH scrambled by the C-RNTI through the CRC.
S204, the UE receives the RRC dedicated signaling sent by the eNodeB, stores all the configuration information in the message, and feeds back response information to the eNodeB.
Preferably, the response message is an RRC connection reconfiguration complete message.
Specifically, after receiving the RRC connection reconfiguration message, the UE stores all configuration information in the message, monitors a control channel scrambled by a C-RNTI for CRC, and sends a PUSCH to the eNodeB according to an indication of uplink scheduling information in a DCI format carried on the monitored control channel, and carries the RRC connection reconfiguration complete message on the PUSCH. The UE monitors a control channel on a downlink carrier wave of an access cell and other downlink carrier waves allocated to the UE. The corresponding control channel may be PDCCH, EPDCCH, MPDCCH, or SPDCCH.
S205, when the eNodeB decides to activate a CA dedicated semi-static resource configured on a certain uplink carrier of the UE, the eNodeB selects a carrier from the predetermined downlink carriers which can schedule the uplink carrier, and sends a control channel scrambled by a Special SPS C-RNTI for CRC to the UE on the carrier, wherein the control channel carries in a DCI format carried on the control channel: the state indication of the CA special semi-static resource, the carrier subscript of the uplink carrier and the subscript of the CA special semi-static resource. Wherein, the value of the CA-specific semi-static resource status indication is TURE.
Here, the control channel on the downlink carrier may be a PDCCH, an EPDCCH, an MPDCCH, or an SPDCCH.
Specifically, when one downlink carrier can schedule multiple uplink carriers, a carrier subscript needs to be allocated to each uplink carrier that can be scheduled, when there is more than one CA dedicated semi-static resource on one uplink carrier that can be scheduled, a subscript needs to be allocated to each CA dedicated semi-static resource on the uplink carrier, and when a control channel is sent on the downlink carrier to a UE for activating or deactivating a CA dedicated semi-static resource on a certain uplink carrier, a DCI format carried by the control channel not only carries a CA dedicated semi-static resource status indication, but also carries the uplink carrier subscript and the CA dedicated semi-static resource subscript. When the CA-specific semi-static resource is indicated as tune or FALSE, it means that the CA-specific semi-static resource indicated by the CA-specific semi-static resource index on the uplink carrier indicated by the uplink carrier index is activated or deactivated, respectively.
S206, the UE monitors a control channel scrambled by the Special SPS C-RNTI for CRC, and when the control channel scrambled by the Special SPS C-RNTI for CRC is monitored, if the state of the CA Special semi-static resource in the DCI format loaded on the control channel indicates TRUE, the UE activates the CA Special semi-static resource indicated by the CA Special semi-static resource subscript on the uplink carrier indicated by the uplink carrier subscript.
Specifically, the UE monitors a corresponding control channel on a downlink carrier that can schedule an uplink carrier configured with the CA dedicated semi-static resource.
When the UE monitors a control channel scrambled by CRC with Special SPS C-RNTI, if the CA dedicated semi-static resource status in the DCI format carried on the control channel indicates TRUE, the UE activates the CA dedicated semi-static resource indicated by the CA dedicated semi-static resource subscript on the uplink carrier indicated by the uplink carrier subscript, specifically the activation operation is as follows:
for any activated CA dedicated semi-static resource on any uplink carrier, the UE sends the PUSCH to the eNodeB on the corresponding uplink carrier in the corresponding uplink subframe in each corresponding scheduling period from the latest scheduling period after the resource is activated according to the configuration information of the CA dedicated semi-static resource, and when the PUSCH is sent each time, the resource occupied by the PUSCH, the number of code words borne on the PUSCH and the MCS adopted by each code word are determined according to the configuration information of the CA dedicated semi-static resource. And the PUSCH carries service data on each uplink RAB of the UE.
Specifically, the UE sends new data to the eNodeB by using RV version 0 in each uplink subframe indicated by the set a in each scheduling period of radio frames with a length of T.
The starting point of each scheduling period is:
SFN mod T＝0
or
SFN mod T＝Offset
When the start point of each scheduling period is determined according to Offset, Offset is also included in the configuration information of the CA-dedicated semi-static resource in step S202.
And allocating subscripts to the uplink subframes from 0 according to the time sequence of the transmission of the uplink subframes in the set A. In each scheduling period, the process number HARQNo adopted when the UE sends PUSCH in the uplink subframe with subscript m in the set a is determined according to the following formula:
HARQNo＝m mod K
or
HARQNo is determined according to the following formula:
HARQNo＝[(L-1)M+m]modK
in the above equation, L is the L-th scheduling period after the CA-dedicated semi-static resource is activated, the values of L are accumulated from 1, and M is the number of uplink subframes included in the set a.
S207, when the eNodeB decides to deactivate a CA dedicated semi-static resource configured on a certain uplink carrier of the UE, the eNodeB selects a carrier from the predetermined downlink carriers which can schedule the uplink carrier, and sends a control channel scrambled by a Special SPS C-RNTI for CRC to the UE on the carrier, wherein the DCI format carried on the control channel carries: the state indication of the CA special semi-static resource, the subscript of the uplink carrier wave and the subscript of the CA special semi-static resource. Wherein, the value of the CA special semi-static resource state indication is FALSE; the subscript of the uplink carrier is the subscript of the uplink carrier where the deactivated CA-dedicated semi-static resource is located, and the subscript of the CA-dedicated semi-static resource is the subscript of the deactivated CA-dedicated semi-static resource on the uplink carrier. The control channel on the downlink carrier may be PDCCH, EPDCCH, MPDCCH or SPDCCH.
S208, the UE monitors a control channel scrambled by the Special SPS C-RNTI for CRC, and when the control channel scrambled by the Special SPS C-RNTI for CRC is monitored, if the state of the CA Special semi-static resource in the DCI format loaded on the control channel indicates FALSE, the UE deactivates the CA Special semi-static resource indicated by the CA Special semi-static resource subscript on the uplink carrier indicated by the uplink carrier subscript.
Specifically, the UE monitors a corresponding control channel on a downlink carrier that can schedule an uplink carrier configured with the CA dedicated semi-static resource.
When the UE monitors a control channel scrambled by CRC with Special SPS C-RNTI, if the state of the CA Special semi-static resource in the DCI format loaded on the control channel indicates FALSE, the UE releases the CA Special semi-static resource indicated by the CA Special semi-static resource subscript on the uplink carrier indicated by the uplink carrier subscript.
In addition, in step S202, the Special SPS C-RNTI assigned to the UE by the eNodeB takes the following values:
(1) let the Special SPS C-RNTI equal to the SPS C-RNTI of the UE.
In this scenario, the number of blind UE detections is not increased by introducing the CA dedicated semi-static resource, and only 3 fields need to be added in the DCI format carried by the control channel activating or deactivating the CA dedicated semi-static resource: the system comprises a CA special semi-static resource state indication, an uplink carrier subscript and a CA special semi-static resource subscript.
(2) The Special SPS C-RNTI is different from the SPS C-RNTI of the UE.
In this scenario, the number of blind UE detections increases due to the introduction of CA-specific semi-static resources.
The method for allocating uplink carrier resources in carrier aggregation according to this embodiment can solve the problem that when one downlink carrier schedules multiple uplink carriers simultaneously, resources of the uplink carriers are not fully utilized due to a shortage of control channel resources on the downlink carrier, ensure that the resources of the uplink carriers are fully utilized, and save uplink resources on an air interface at the same time.
Fig. 3 is a first schematic structural diagram of an apparatus for allocating uplink carrier resources in carrier aggregation according to an embodiment of the present invention. As shown in fig. 3, the apparatus 30 for allocating uplink carrier resources in carrier aggregation includes: a resource allocation module 301, a configuration information determination module 302, a configuration information sending module 303, and a resource activation and deactivation module 304.
The resource allocation module 301 is configured to, by the eNodeB, allocate an uplink carrier and a downlink carrier to the UE according to the service application of the UE and the capability information of the UE, determine, for each downlink carrier allocated to the UE, each uplink carrier scheduled by each downlink carrier, and allocate, for any uplink carrier allocated to the UE, a CA-dedicated semi-static resource on the uplink carrier to the UE as needed.
A configuration information determining module 302, configured to, when the eNodeB allocates at least one CA-dedicated semi-static resource to the UE on at least one uplink carrier, the eNodeB determines configuration information of each CA-dedicated semi-static resource on each uplink carrier allocated to the UE, and for the UE allocated with at least one CA-dedicated semi-static resource, the eNodeB allocates an RNTI to the UE: special semi-static Special SPS C-RNTI.
A configuration information sending module 303, configured to send, by the eNodeB, an RRC dedicated signaling to the UE, where information carried in the signaling includes: special SPS C-RNTI; configuration information of each CA dedicated semi-static resource allocated to each uplink carrier of the UE; and subscripts of the uplink carriers scheduled by each downlink carrier.
A resource activation and deactivation module 304, configured to, after the eNodeB receives response information fed back by the UE, when it is determined to activate or deactivate a CA dedicated semi-persistent resource configured on a certain uplink carrier of the UE, the eNodeB selects one carrier from downlink carriers that schedule the uplink carrier in advance, and sends a control channel scrambled by a Special SPS C-RNTI for a CRC on the carrier to the UE, where the DCI format carried on the control channel carries: the CA dedicated semi-static resource status indication is a TURE value or a FALSE value and is respectively used for indicating the UE to activate or deactivate the CA dedicated semi-static resource indicated by the CA dedicated semi-static resource subscript on the uplink carrier indicated by the uplink carrier subscript, so that when the UE monitors a control channel scrambled by a Special SPS C-RNTI (Cyclic shift register) used for CRC, the UE activates or deactivates the corresponding CA dedicated semi-static resource on the corresponding uplink carrier according to the value of the CA dedicated semi-static resource status indication in a DCI format loaded on the control channel.
In a possible design, the eNodeB in the resource allocation module 301 allocates an uplink carrier and a downlink carrier to the UE according to the service application of the UE and the capability information of the UE, and after determining, for each downlink carrier allocated to the UE, each uplink carrier scheduled by each downlink carrier, the method further includes:
when a certain downlink carrier schedules a plurality of uplink carriers, the eNodeB allocates a carrier subscript to each scheduled uplink carrier.
In one possible design, the configuration information of the CA-dedicated semi-static resources on the uplink carrier includes:
uplink carrier subscript: the carrier subscript of the uplink carrier where the CA special semi-static resource is located;
SPS resource subscript: if a plurality of CA special semi-static resources are allocated to the same UE on one uplink carrier, allocating a subscript to each CA special semi-static resource;
scheduling period T: the scheduling period of the CA special semi-static resource is T wireless frames;
and a subframe set A: a set of uplink subframes allocated to the UE in one scheduling period;
physical Uplink Shared Channel (PUSCH) configuration information: RB resources occupied by PUSCH, the number of loaded code words and MCS adopted by each code word;
implicit release indication: the IE indicates the number of UE idle transmissions waiting before the eNodeB releases the CA dedicated semi-static resources;
number of HARQ processes: the number of HARQ processes used for CA-specific semi-static resource transmission;
redundancy version RV version indication: when IE exists, RV version 0 is adopted for each retransmission; otherwise, each retransmission circularly uses RV versions 0, 1, 2 and 3 from RV version 0;
and the power control parameters of the CA special semi-static resources.
In one possible design, the RRC-dedicated signaling is an RRC connection reconfiguration message;
the sending of the RRC dedicated signaling to the UE by the eNodeB in the configuration information sending module 303 includes:
when the UE is accessed to the cell, the eNodeB sends the RRC connection reconfiguration message to the UE through the downlink carrier of the cell accessed by the UE, and in other resource allocation scenes, the eNodeB selects one carrier from the downlink carriers allocated to the UE and sends the RRC connection reconfiguration message to the UE, wherein the PDSCH bearing the RRC connection reconfiguration message is scrambled by using the C-RNTI on the corresponding downlink carrier, and the scheduling information of the PDSCH is carried to the UE through the PDCCH scrambled by using the C-RNTI on the CRC.
The device provided in this embodiment may be used to implement the technical solution of the above method embodiment, and the implementation principle and technical effect are similar, which are not described herein again.
Fig. 4 is a schematic hardware structure diagram of an apparatus for allocating uplink carrier resources in carrier aggregation according to an embodiment of the present invention. As shown in fig. 4, the apparatus 40 for allocating uplink carrier resources in carrier aggregation according to this embodiment includes: a processor 401 and a memory 402; wherein
A memory 402 for storing computer-executable instructions;
the processor 401 is configured to execute computer-executable instructions stored in the memory to implement the steps performed by the allocation method for uplink carrier resources in carrier aggregation in the foregoing embodiments. Reference may be made in particular to the description relating to the method embodiments described above.
Alternatively, the memory 402 may be separate or integrated with the processor 401.
When the memory 402 is independently arranged, the device for allocating uplink carrier resources in carrier aggregation further includes a bus 403 for connecting the memory 402 and the processor 401.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer executing instruction is stored in the computer-readable storage medium, and when a processor executes the computer executing instruction, the method for allocating uplink carrier resources in carrier aggregation is implemented as described above.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware form, and can also be realized in a form of hardware and a software functional unit.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present application.
It should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile storage NVM, such as at least one disk memory, and may also be a usb disk, a removable hard disk, a read-only memory, a magnetic or optical disk, etc.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (enhanced Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
The storage medium may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the storage medium may reside as discrete components in an electronic device or host device.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A method for allocating uplink carrier resources in carrier aggregation is characterized by comprising the following steps:
an evolved node B evolved NodeB allocates uplink carriers and downlink carriers to User Equipment (UE) according to service application of the UE and capability information of the UE, determines each uplink carrier scheduled by each downlink carrier for each downlink carrier allocated to the UE, and allocates Carrier Aggregation (CA) special semi-static resources on the uplink carriers to the UE according to needs for any uplink carrier allocated to the UE;
when the eNodeB allocates at least one CA-dedicated semi-static resource to the UE on at least one uplink carrier, the eNodeB determines the configuration information of each CA-dedicated semi-static resource on each uplink carrier allocated to the UE, and for the UE allocated with at least one CA-dedicated semi-static resource, the eNodeB allocates a Radio Network Temporary Identifier (RNTI) to the UE: special semi-static Special SPS C-RNTI;
the eNodeB sends an RRC dedicated signaling to the UE, wherein the information carried in the signaling comprises: special SPS C-RNTI; configuration information of each CA dedicated semi-static resource allocated to each uplink carrier of the UE; and subscripts of each uplink carrier scheduled by each downlink carrier;
after the eNodeB receives response information fed back by the UE, when the eNodeB decides to activate or deactivate a CA Special semi-static resource on an uplink carrier configured to the UE, the eNodeB selects a carrier from downlink carriers which are predetermined and schedule the uplink carrier, and sends a control channel scrambled by Special SPS C-RNTI for cyclic redundancy check CRC to the UE on the carrier, wherein a DCI format carried on the control channel carries a CA Special semi-static resource status indication, a carrier subscript of the uplink carrier and the CA Special semi-static resource subscript, wherein the value of the CA Special semi-static resource status indication is TURE or FALSE, and the CA Special semi-static resource status indication is respectively used for indicating the UE to activate or deactivate the CA Special semi-static resource indicated by the CA Special semi-static resource subscript on the uplink carrier indicated by the uplink carrier, so that the UE monitors the control channel scrambled by the Special SPS C-RNTI for CRC, and activating or deactivating corresponding CA special semi-static resources on corresponding uplink carriers according to the value of the CA special semi-static resource state indication in the DCI format loaded on the control channel.
2. The method of claim 1, wherein after determining, for each downlink carrier allocated to the UE, a respective uplink carrier scheduled by each downlink carrier, further comprising:
when a certain downlink carrier schedules a plurality of uplink carriers, the eNodeB allocates a carrier subscript to each scheduled uplink carrier.
3. The method of claim 1, wherein the information on the configuration of the CA-specific semi-static resources on the uplink carrier comprises:
uplink carrier subscript: the carrier subscript of the uplink carrier where the CA special semi-static resource is located;
SPS resource subscript: if a plurality of CA special semi-static resources are allocated to the same UE on one uplink carrier, allocating a subscript to each CA special semi-static resource;
scheduling period T: the scheduling period of the CA special semi-static resource is T wireless frames;
and a subframe set A: a set of uplink subframes allocated to the UE in one scheduling period;
physical Uplink Shared Channel (PUSCH) configuration information: RB resources occupied by PUSCH, the number of loaded code words and a modulation and coding strategy MCS adopted by each code word;
implicit release indication: the UE idle times are used for indicating the waiting times before the eNodeB releases the CA dedicated semi-static resources;
number of HARQ processes: the number of HARQ processes used for CA-specific semi-static resource transmission;
redundancy version RV indicates: when the information exists, the RV version 0 is adopted for each retransmission; otherwise, each retransmission circularly uses RV versions 0, 1, 2 and 3 from RV version 0;
and the power control parameters of the CA special semi-static resources.
4. The method of claim 1, wherein the RRC dedicated signaling is an RRC connection reconfiguration message;
the eNodeB sending the RRC dedicated signaling to the UE comprises:
when the UE is accessed to the cell, the eNodeB sends the RRC connection reconfiguration message to the UE through the downlink carrier of the cell accessed by the UE, in other resource allocation scenes, the eNodeB selects one carrier from the downlink carriers allocated to the UE and sends the RRC connection reconfiguration message to the UE, wherein a Physical Downlink Shared Channel (PDSCH) for bearing the RRC connection reconfiguration message is scrambled by using a C-RNTI on the corresponding downlink carrier, and scheduling information of the PDSCH is carried to the UE through a Physical Downlink Control Channel (PDCCH) scrambled by the C-RNTI on the CRC.
5. An apparatus for allocating uplink carrier resources in carrier aggregation, comprising:
the resource allocation module is used for the eNodeB to allocate uplink carriers and downlink carriers to the UE according to the service application of the UE and the capability information of the UE, determine each uplink carrier scheduled by each downlink carrier for each downlink carrier allocated to the UE, and allocate CA (access control) special semi-static resources on the uplink carriers to the UE according to the requirements for any uplink carrier allocated to the UE;
a configuration information determining module, configured to, when the eNodeB allocates at least one CA-dedicated semi-static resource to the UE on at least one uplink carrier, the eNodeB determines configuration information of each CA-dedicated semi-static resource on each uplink carrier allocated to the UE, and for the UE allocated with at least one CA-dedicated semi-static resource, the eNodeB allocates an RNTI to the UE: special semi-static Special SPS C-RNTI;
a configuration information sending module, configured to send, by an eNodeB, an RRC dedicated signaling to a UE, where information carried in the signaling includes: special SPS C-RNTI; configuration information of each CA dedicated semi-static resource allocated to each uplink carrier of the UE; and subscripts of each uplink carrier scheduled by each downlink carrier;
a resource activation and deactivation module, configured to, after the eNodeB receives response information fed back by the UE, when determining to activate or deactivate a CA dedicated semi-persistent resource on a certain uplink carrier configured to the UE, the eNodeB selects a carrier from downlink carriers scheduling the uplink carrier in advance, and sends a control channel scrambled with a Special SPS C-RNTI to the UE on the carrier, where in a DCI format carried on the control channel, a CA dedicated semi-persistent resource status indication is carried, and a carrier index and a CA dedicated semi-persistent resource index of the uplink carrier, where the value of the CA dedicated semi-persistent resource status indication is tune or FALSE, and the CA dedicated semi-persistent resource indicated by the CA dedicated semi-persistent resource index on the uplink carrier indicated by the uplink carrier index is respectively used to indicate the UE to activate or deactivate the CA dedicated semi-persistent resource on the uplink carrier indicated by the uplink carrier index, so that the UE monitors the control channel scrambled with the Special SPS C-RNTI, and activating or deactivating corresponding CA special semi-static resources on corresponding uplink carriers according to the value of the CA special semi-static resource state indication in the DCI format loaded on the control channel.
6. The apparatus according to claim 5, wherein the eNodeB in the resource allocation module allocates uplink carriers and downlink carriers to the UE according to the service application of the UE and the capability information of the UE, and after determining, for each downlink carrier allocated to the UE, each uplink carrier scheduled by each downlink carrier, further comprises:
when a certain downlink carrier schedules a plurality of uplink carriers, the eNodeB allocates a carrier subscript to each scheduled uplink carrier.
7. The apparatus of claim 5, wherein the configuration information of the CA-specific semi-static resources on the uplink carrier comprises:
uplink carrier subscript: the carrier subscript of the uplink carrier where the CA special semi-static resource is located;
SPS resource subscript: if a plurality of CA special semi-static resources are allocated to the same UE on one uplink carrier, allocating a subscript to each CA special semi-static resource;
scheduling period T: the scheduling period of the CA special semi-static resource is T wireless frames;
and a subframe set A: a set of uplink subframes allocated to the UE in one scheduling period;
and PUSCH configuration information: RB resources occupied by PUSCH, the number of loaded code words and MCS adopted by each code word;
implicit release indication: the UE idle times are used for indicating the waiting times before the eNodeB releases the CA dedicated semi-static resources;
number of HARQ processes: the number of HARQ processes used for CA-specific semi-static resource transmission;
RV indicates: when the information exists, the RV version 0 is adopted for each retransmission; otherwise, each retransmission circularly uses RV versions 0, 1, 2 and 3 from RV version 0;
and the power control parameters of the CA special semi-static resources.
8. The apparatus of claim 5, wherein the RRC dedicated signaling is an RRC connection reconfiguration message;
the sending of the RRC dedicated signaling to the UE by the eNodeB in the configuration information sending module includes:
when the UE is accessed to the cell, the eNodeB sends the RRC connection reconfiguration message to the UE through the downlink carrier of the cell accessed by the UE, and in other resource allocation scenes, the eNodeB selects one carrier from the downlink carriers allocated to the UE and sends the RRC connection reconfiguration message to the UE, wherein the PDSCH bearing the RRC connection reconfiguration message is scrambled by using the C-RNTI on the corresponding downlink carrier, and the scheduling information of the PDSCH is carried to the UE through the PDCCH scrambled by using the C-RNTI on the CRC.
9. An apparatus for allocating uplink carrier resources in carrier aggregation, comprising: a memory and at least one processor;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the method for allocating uplink carrier resources in carrier aggregation according to any of claims 1 to 4.
10. A computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, which when executed by a computer processor, implement the method for allocating uplink carrier resources in carrier aggregation according to any one of claims 1 to 4.
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