CN102647800B - Power headroom processing method in carrier aggregation and subscriber equipment, base station - Google Patents

Power headroom processing method in carrier aggregation and subscriber equipment, base station Download PDF

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Publication number
CN102647800B
CN102647800B CN201110039126.6A CN201110039126A CN102647800B CN 102647800 B CN102647800 B CN 102647800B CN 201110039126 A CN201110039126 A CN 201110039126A CN 102647800 B CN102647800 B CN 102647800B
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China
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scc
described
power headroom
base station
type
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CN201110039126.6A
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Chinese (zh)
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CN102647800A (en
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李亚娟
张兴炜
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华为技术有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/36TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/365Power headroom reporting
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • H04W52/14Separate analysis of uplink or downlink
    • H04W52/146Uplink power control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/12Dynamic Wireless traffic scheduling ; Dynamically scheduled allocation on shared channel

Abstract

The embodiment of the present invention provides the power headroom processing method in carrier aggregation and subscriber equipment, base station, and method includes: know that the subframe on SCC increases transmission PUCCH;On described SCC, send the power headroom reporting (PHR) of the type 2 of described SCC to base station, to report power headroom and the power headroom of described PUCCH of the PUSCH of described SCC.The embodiment of the present invention is by knowing that the subframe on SCC increases transmission PUCCH, this SCC sends the power headroom reporting (PHR) of the type 2 of above-mentioned SCC to base station, so that the power headroom of the PUCCH of SCC and the power headroom of PUSCH can be known in above-mentioned base station, and then can accurately dispatch, thus improve the accuracy of base station scheduling.

Description

Power headroom processing method in carrier aggregation and subscriber equipment, base station

Technical field

The present embodiments relate to communication technology, particularly relate to the power headroom processing method in carrier aggregation And subscriber equipment, base station.

Background technology

Carrier aggregation refers to that subscriber equipment (User Equipment is called for short UE) can be simultaneously at two Or two or more is continuous or discrete component carrier (Component Carrier is called for short CC) Upper transmission data and reception data.In the component carrier of all configuration/activation of UE, only one of which composition carries Ripple is main component carrier (Primary Component Carrier is called for short PCC), can be at up son (Physical Uplink Shared Channel is called for short frame transmitting physical Uplink Shared Channel simultaneously PUSCH) and Physical Uplink Control Channel (Physical Uplink Control Channel, be called for short PUCCH), other component carriers be then secondary component carrier (Secondary Component Carrier, It is called for short SCC), may only be at sub-frame of uplink transmitting physical Uplink Shared Channel (Physical Uplink Shared Channel, is called for short PUSCH).UE can pass through power headroom reporting (PHR) (Power Headroom Report, is called for short PHR) by it at the remaining power headroom of current transmission time slot (i.e. The peak power that UE can be transmitted by all component carriers deducts the power that currently transmitted data are consumed) It is sent to base station, so that this UE is scheduling by base station.Wherein, PHR can include two types, One is the PHR (type 1 PHR) of Class1 (type 1), and another kind is type 2 (type 2) PHR (type 2 PHR).Specifically, UE can be to base station transmission types 1 on SCC PHR, to send the power headroom of PUSCH;UE can be to base station transmission types 2 on PCC PHR, to send the power headroom of PUSCH and PUCCH.

In existing time division duplex (Time Division Duplexing is called for short TDD) system, all poly- The component carrier closed all uses identical ascending-descending subframes to configure, and UE is only on the PUCCH of PCC Feed back hybrid automatic repeat-request (the Hybrid Automatic Repeat of this PCC and other SCC ReQuest, be called for short HARQ) response (ACK/NACK) information.But, when the composition of polymerization When different ascending-descending subframes configurations occurs in carrier wave, it is possible that SCC needs to feed back HARQ's The situation of the descending sub frame of the PCC that subframe moment of response message is corresponding.A kind of solution party therein Method can be to increase transmission PUCCH on SCC.But, when increasing transmission PUCCH on SCC Time, UE, according to traditional approach, is adjusted by base station according to the power headroom of the PUSCH of SCC Degree, the accuracy of scheduling is relatively low.

Summary of the invention

The embodiment of the present invention provides the power headroom processing method in carrier aggregation and subscriber equipment, base station, To improve the accuracy of base station scheduling.

Embodiments provide the power headroom processing method in a kind of carrier aggregation, including:

Know that the subframe on SCC increases transmission PUCCH;

On described SCC, send the power headroom reporting (PHR) of the type 2 of described SCC to base station, with report Accuse power headroom and the power headroom of described PUCCH of the PUSCH of described SCC.

The embodiment of the present invention additionally provides a kind of subscriber equipment, including:

Know module, for knowing that the subframe on SCC increases transmission PUCCH;

Sending module, at described SCC, sending the power of the type 2 of described SCC to base station Headroom reporting, more than the power of the power headroom and described PUCCH of reporting the PUSCH of described SCC Amount.

Embodiments provide the power headroom processing method in another kind of carrier aggregation, including:

SCC receives the power headroom reporting (PHR) of the type 2 of the described SCC that UE sends;

The power headroom of the PUSCH of SCC in the power headroom reporting (PHR) of the type 2 according to described SCC With the power headroom of PUCCH, described UE is scheduling.

The embodiment of the present invention additionally provides a kind of base station, including:

Receiver module, more than the power of the type 2 of the described SCC of reception U E transmission on SCC Amount report;

Scheduler module, for according to SCC in the power headroom reporting (PHR) of the type 2 of described SCC The power headroom of PUSCH and the power headroom of PUCCH, be scheduling described UE.

As shown from the above technical solution, the embodiment of the present invention is by knowing that the subframe on SCC increases transmission PUCCH, sends the power headroom reporting (PHR) of the type 2 of above-mentioned SCC on this SCC to base station, from And above-mentioned base station can be known more than the power headroom of PUCCH and the power of PUSCH of SCC Amount, provides more fully information for base station, thus improves the accuracy of base station scheduling the scheduling of UE.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that under, Accompanying drawing during face describes is some embodiments of the present invention, for those of ordinary skill in the art, On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Power headroom processing method in a kind of carrier aggregation that Fig. 1 provides for the embodiment of the present invention one Schematic flow sheet;

The structural representation of the subscriber equipment that Fig. 2 provides for the embodiment of the present invention two;

Power headroom processing method in the another kind of carrier aggregation that Fig. 3 provides for the embodiment of the present invention three Schematic flow sheet;

One structural representation of the base station that Fig. 4 provides for the embodiment of the present invention four;

Another structural representation of the base station that Fig. 5 provides for the embodiment of the present invention four.

Detailed description of the invention

For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with this Accompanying drawing in bright embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention, Obviously, described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on Embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise The every other embodiment obtained, broadly falls into the scope of protection of the invention.

The stream of the power headroom processing method in a kind of carrier aggregation that Fig. 1 provides for the embodiment of the present invention one Journey schematic diagram, as it is shown in figure 1, the power headroom processing method in the carrier aggregation of the present embodiment can be wrapped Include following steps:

Step 101, the subframe known on SCC increase transmission PUCCH;

Specifically, U E can control (Media by receiving from the physical layer of base station, media interviews Access Control, is called for short MAC) layer or wireless heterogeneous networks (Radio Resource Control, It is called for short RRC) notification message of layer, know that the subframe on SCC increases transmission PUCCH;Or also Can know that the subframe on SCC increases transmission by receiving the PDCCH schedule information from base station PUCCH, this is not limited by the embodiment of the present invention.

Step 102, on above-mentioned SCC, send the power headroom of type 2 of above-mentioned SCC to base station Report, to report power headroom and the power headroom of above-mentioned PUCCH of the PUSCH of above-mentioned SCC.

Specifically, UE can send above-mentioned SCC's in arbitrary subframe of above-mentioned SCC to base station The power headroom reporting (PHR) of type 2, such as: UE can increase in the subframe transmitting PUCCH, to Base station sends the power headroom reporting (PHR) of the type 2 of above-mentioned SCC, or UE can also increase transmission In arbitrary subframe before the subframe of PUCCH, more than the power of the type 2 sending above-mentioned SCC to base station Amount report, i.e. reports the respective power headroom of PUSCH and PUCCH of above-mentioned SCC.

Alternatively, in this step, UE can also periodically send described on above-mentioned SCC to base station The power headroom reporting (PHR) of the type 2 of SCC.Specifically, UE can be through but not limited in following manner Either type is periodically to the power headroom reporting (PHR) of the type 2 of the described SCC of base station transmission:

In the default subframe of above-mentioned SCC, send the power headroom of the type 2 of described SCC to base station Report;

When forbidding power headroom reporting (PHR) intervalometer (prohibitPHR-Timer) time-out, and path loss (path loss) is more than the path loss threshold (dl-PathlossChange, unit: dB) pre-set Time, on above-mentioned SCC, send the power headroom reporting (PHR) of the type 2 of described SCC to base station;

When periodic power headroom report timer (periodicPHR-Timer) time-out, above-mentioned On SCC, send the power headroom reporting (PHR) of the type 2 of described SCC to base station.

Forbid that power headroom reporting (PHR) intervalometer and periodic power headroom report are fixed it should be understood that above-mentioned Time device and path loss threshold can use the parameter of the configuration of PHR in prior art, it is also possible to configuration is single Only set of parameter, this is not limited by the present embodiment.

In the present embodiment, by knowing that the subframe on SCC increases transmission PUCCH, on this SCC The power headroom reporting (PHR) of the type 2 of above-mentioned SCC is sent, so that above-mentioned base station can be known to base station The power headroom of the PUCCH of SCC and the power headroom of PUSCH, and then can be that base station is to UE Scheduling more fully information is provided, improve the accuracy of base station scheduling.

Power headroom processing method in the carrier aggregation of the present embodiment goes for multiple wireless access Net, such as: Long Term Evolution (Long Term Evolution, be called for short LTE) grid, LTE The networks such as evolution (LTE-Advance is called for short LTE-A) grid.

Base station therein can be the evolved NodeB (Evolved in LTE or lte-a system network NodeB, be called for short eN B) etc. network element.

It should be understood that for aforesaid each method embodiment, in order to be briefly described, therefore by its all table Stating as a series of combination of actions, but those skilled in the art should know, the present invention is by being retouched The restriction of the sequence of movement stated because according to the present invention, some step can use other orders or with Shi Jinhang.Secondly, those skilled in the art also should know, embodiment described in this description all belongs to In preferred embodiment, necessary to involved action and the module not necessarily present invention.

In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not has in certain embodiment The part described in detail, may refer to the associated description of other embodiments.

The structural representation of the subscriber equipment that Fig. 2 provides for the embodiment of the present invention two, as in figure 2 it is shown, this The subscriber equipment of embodiment can include knowing module 21 and sending module 22.Wherein, module 21 is known For knowing that the subframe on SCC increases transmission PUCCH;Sending module 22 is used at above-mentioned SCC, The power headroom reporting (PHR) of the type 2 of above-mentioned SCC is sent, to report the PUSCH of above-mentioned SCC to base station Power headroom and the power headroom of above-mentioned PUCCH.

The subscriber equipment that in the invention described above embodiment one, method can be provided by the embodiment of the present invention realizes.

Specifically, the present embodiment knows that module 21 specifically can be by receiving from the thing of above-mentioned base station Reason layer, MAC layer or the notification message of rrc layer, know that the subframe on SCC increases transmission PUCCH; Or the subframe on SCC can also be known by receiving the PDCCH schedule information from above-mentioned base station Increase transmission PUCCH.

Specifically, the sending module 22 in the present embodiment specifically may be used for the arbitrary son at above-mentioned SCC On frame, send the power headroom reporting (PHR) of the type 2 of above-mentioned SCC to base station, to report above-mentioned SCC's The respective power headroom of PUSCH and PUCCH.

Alternatively, the sending module 22 in the present embodiment can also be further used on above-mentioned SCC, Periodically send the power headroom reporting (PHR) of the type 2 of above-mentioned SCC to base station, to report above-mentioned SCC's The respective power headroom of PUSCH and PUCCH.Specifically, sending module 22 specifically can be above-mentioned In the default subframe of SCC, send the power headroom reporting (PHR) of the type 2 of above-mentioned SCC to base station, with report Accuse the respective power headroom of PUSCH and PUCCH of above-mentioned SCC;Or can also work as and forbid power Headroom reporting timer expiry, and when path loss is more than the path loss threshold pre-set, above-mentioned On SCC, send the power headroom reporting (PHR) of the type 2 of above-mentioned SCC to base station, to report above-mentioned SCC The respective power headroom of PUSCH and PUCCH;Or periodic power headroom report can also be worked as During timer expiry, on above-mentioned SCC, send the power headroom of the type 2 of above-mentioned SCC to base station Report, to report the respective power headroom of PUSCH and PUCCH of above-mentioned SCC.

In the present embodiment, the subframe that subscriber equipment is known on SCC by knowing module increases transmission PUCCH, and then on this SCC, sent the merit of the type 2 of above-mentioned SCC to base station by sending module Rate headroom reporting so that above-mentioned base station can know the PUCCH of SCC power headroom and The power headroom of PUSCH, and then can accurately dispatch, thus improve the accurate of base station scheduling Property.

Power headroom processing method in the another kind of carrier aggregation that Fig. 3 provides for the embodiment of the present invention three Schematic flow sheet, as it is shown on figure 3, the power headroom processing method in the carrier aggregation of the present embodiment is permissible Comprise the following steps:

Step 301, on SCC, receive the power headroom report of type 2 of the above-mentioned SCC that U E sends Accuse;

Specifically, base station can send physical layer to U E, media interviews control (Media Access Control, is called for short MAC) (Radio Resource Control is called for short for layer or wireless heterogeneous networks RRC) notification message of layer, to indicate the subframe on SCC to increase transmission PUCCH;Or it is all right PDCCH schedule information is sent to U E, to indicate the subframe on SCC to increase transmission PUCCH, this This is not limited by inventive embodiments.UE know subframe on SCC increase transmission PUCCH it After, UE then sends the power headroom reporting (PHR) of the type 2 of above-mentioned SCC on this SCC to base station.

Step 302, according to the PUSCH of SCC in the power headroom reporting (PHR) of the type 2 of above-mentioned SCC Power headroom and the power headroom of PUCCH, above-mentioned UE is scheduling.

In the present embodiment, by receiving the power of the type 2 of the above-mentioned SCC that UE sends on SCC Headroom reporting, is enable to the power of power headroom and the PUSCH knowing the PUCCH of SCC Surplus, and then can accurately dispatch, relative to prior art only by the power headroom of PUCCH For carrying out the scheduling of UE, improve the accuracy of base station scheduling.

Power headroom processing method in the carrier aggregation of the present embodiment goes for multiple wireless access Net, such as: Long Term Evolution (Long Term Evolution, be called for short LTE) grid, LTE The networks such as evolution (LTE-Advance is called for short LTE-A) grid.

Base station therein can be the evolved NodeB (Evolved in LTE or lte-a system network NodeB, be called for short eNB) etc. network element.

It should be understood that for aforesaid each method embodiment, in order to be briefly described, therefore by its all table Stating as a series of combination of actions, but those skilled in the art should know, the present invention is by being retouched The restriction of the sequence of movement stated because according to the present invention, some step can use other orders or with Shi Jinhang.Secondly, those skilled in the art also should know, embodiment described in this description all belongs to In preferred embodiment, necessary to involved action and the module not necessarily present invention.

In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not has in certain embodiment The part described in detail, may refer to the associated description of other embodiments.

One structural representation of the base station that Fig. 4 provides for the embodiment of the present invention four, as shown in Figure 4, this reality The base station executing example can include receiver module 41 and scheduler module 42.Wherein, receiver module 41 is used for The power headroom reporting (PHR) of the type 2 of the above-mentioned SCC that SCC upper reception UE sends, scheduler module 42 is used SCC in the power headroom reporting (PHR) of the type 2 of the above-mentioned SCC received according to receiver module 41 The power headroom of PUSCH and the power headroom of PUCCH, be scheduling above-mentioned UE.

Further, as it is shown in figure 5, the base station of the present embodiment can further include indicating module 51, For

Physical layer, media interviews mac layer or radio resource control RRC layer is sent to above-mentioned UE Notification message, to indicate subframe on SCC to increase transmission PUCCH;Or

Physical downlink control channel PDCCH schedule information is sent, to indicate on SCC to above-mentioned UE Subframe increases transmission PUCCH.

So, after U E knows that the subframe on SCC increases transmission PUCCH, UE is then at this SCC On send the power headroom reporting (PHR) of type 2 of above-mentioned SCC to base station.

In the present embodiment, on SCC, received the type of the above-mentioned SCC that UE sends by receiver module The power headroom reporting (PHR) of 2, so that scheduler module can know the power headroom of the PUCCH of SCC With the power headroom of PUSCH, and then can accurately dispatch, thus improve the standard of base station scheduling Really property.

One of ordinary skill in the art will appreciate that: realize all or part of step of said method embodiment Can be completed by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer-readable Taking in storage medium, this program upon execution, performs to include the step of said method embodiment;And it is aforementioned Storage medium include: various Jie that can store program code such as ROM, RAM, magnetic disc or CD Matter.

Last it is noted that above example is only in order to illustrate technical scheme, rather than to it Limit;Although the present invention being described in detail with reference to previous embodiment, the ordinary skill of this area Personnel it is understood that the technical scheme described in foregoing embodiments still can be modified by it, or Person carries out equivalent to wherein portion of techniques feature;And these amendments or replacement, do not make corresponding skill The essence of art scheme departs from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (10)

1. the power headroom processing method in a carrier aggregation, it is characterised in that including:
Know that the subframe on secondary component carrier SCC increases transmitting physical ascending control channel PUCCH;
On described SCC, send the power headroom reporting (PHR) of the type 2 of described SCC to base station, with report Accuse power headroom and the power of described PUCCH of the Physical Uplink Shared Channel PUSCH of described SCC Surplus;
The described subframe known on SCC increases transmission PUCCH, including:
By receiving physical layer, media interviews mac layer or Radio Resource control from described base station The notification message of rrc layer processed, knows that the subframe on SCC increases transmission PUCCH;Or
By receiving the physical downlink control channel PDCCH schedule information from described base station, know Subframe on SCC increases transmission PUCCH.
Method the most according to claim 1, it is characterised in that described on described SCC, to Base station sends the power headroom reporting (PHR) of the type 2 of described SCC, including:
In arbitrary subframe of described SCC, send the power headroom of the type 2 of described SCC to base station Report.
Method the most according to claim 1, it is characterised in that described on described SCC, to Base station sends the power headroom reporting (PHR) of the type 2 of described SCC, including:
On described SCC, periodically send the power headroom reporting (PHR) of the type 2 of described SCC to base station.
Method the most according to claim 3, it is characterised in that described on described SCC, week Phase property sends the power headroom reporting (PHR) of the type 2 of described SCC to base station, including:
In the default subframe of described SCC, send the power headroom of the type 2 of described SCC to base station Report;Or
When forbidding power headroom reporting (PHR) timer expiry, and path loss is more than the path loss pre-set During threshold value, on described SCC, send the power headroom reporting (PHR) of the type 2 of described SCC to base station; Or
When periodic power headroom report timer time-out, on described SCC, send described to base station The power headroom reporting (PHR) of the type 2 of SCC.
5. a subscriber equipment, it is characterised in that including:
Know module, for knowing that the subframe on secondary component carrier SCC increases transmitting physical upload control letter Road PUCCH;
Sending module, at described SCC, sending the power of the type 2 of described SCC to base station Headroom reporting, to report the power headroom of the Physical Uplink Shared Channel PUSCH of described SCC and described The power headroom of PUCCH;
Described know module specifically for
By receiving physical layer, media interviews mac layer or Radio Resource control from described base station The notification message of rrc layer processed, knows that the subframe on SCC increases transmission PUCCH;Or
By receiving the physical downlink control channel PDCCH schedule information from described base station, know Subframe on SCC increases transmission PUCCH.
Subscriber equipment the most according to claim 5, it is characterised in that described sending module is specifically used In
In arbitrary subframe of described SCC, send the power headroom of the type 2 of described SCC to base station Report.
Subscriber equipment the most according to claim 5, it is characterised in that described sending module is specifically used In
On described SCC, periodically send the power headroom reporting (PHR) of the type 2 of described SCC to base station.
Subscriber equipment the most according to claim 7, it is characterised in that described sending module is specifically used In
In the default subframe of described SCC, send the power headroom of the type 2 of described SCC to base station Report;Or
When forbidding power headroom reporting (PHR) timer expiry, and path loss is more than the path loss pre-set During threshold value, on described SCC, send the power headroom reporting (PHR) of the type 2 of described SCC to base station; Or
When periodic power headroom report timer time-out, on described SCC, send described to base station The power headroom reporting (PHR) of the type 2 of SCC.
9. the power headroom processing method in a carrier aggregation, it is characterised in that including:
Secondary component carrier SCC receives the merit of the type 2 of the described SCC that user equipment (UE) sends Rate headroom reporting;
The Physical Uplink Shared Channel of SCC in the power headroom reporting (PHR) of the type 2 according to described SCC The power headroom of PUSCH and the power headroom of Physical Uplink Control Channel PUCCH, to described UE It is scheduling;
Also include:
Physical layer, media interviews mac layer or radio resource control RRC layer is sent to described UE Notification message, to indicate subframe on SCC to increase transmission PUCCH;Or
Physical downlink control channel PDCCH schedule information is sent, to indicate on SCC to described UE Subframe increases transmission PUCCH.
10. a base station, it is characterised in that including:
Receiver module, for receiving, on secondary component carrier SCC, the described SCC that user equipment (UE) sends The power headroom reporting (PHR) of type 2;
Scheduler module, for according to the physics of SCC in the power headroom reporting (PHR) of the type 2 of described SCC The power headroom of Uplink Shared Channel PUSCH and the power headroom of Physical Uplink Control Channel PUCCH, Described UE is scheduling;
Also include indicating module, be used for
Physical layer, media interviews mac layer or radio resource control RRC layer is sent to described UE Notification message, to indicate subframe on SCC to increase transmission PUCCH;Or
Physical downlink control channel PDCCH schedule information is sent, to indicate on SCC to described UE Subframe increases transmission PUCCH.
CN201110039126.6A 2011-02-16 2011-02-16 Power headroom processing method in carrier aggregation and subscriber equipment, base station CN102647800B (en)

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PCT/CN2012/070861 WO2012109960A1 (en) 2011-02-16 2012-02-03 Power headroom processing method in carrier aggregation, user equipment and base station

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