CN105991215B - The method and apparatus of carrier wave and Carrier State are used to indicate in cordless communication network - Google Patents
The method and apparatus of carrier wave and Carrier State are used to indicate in cordless communication network Download PDFInfo
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- CN105991215B CN105991215B CN201510052125.3A CN201510052125A CN105991215B CN 105991215 B CN105991215 B CN 105991215B CN 201510052125 A CN201510052125 A CN 201510052125A CN 105991215 B CN105991215 B CN 105991215B
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Abstract
The present invention relates to the method and apparatus that one kind is used to indicate carrier wave and Carrier State within a wireless communication network, the maximum number of the carrier wave is N, comprising: indicate the activation/deactivation state of all configuration carrier waves in single MAC CE or indicate the activation/deactivation state of the carrier wave in changed carrier wave set in single MAC CE, syllable dependent connection in useful load in each carrier wave set and the MAC CE, MAC CE includes sub-header and payload.Base station can also send carrier wave group identifier to user equipment and carrier wave subindex, carrier wave group identifier are used to indicate the carrier wave set where carrier wave subindex.Based on the solution of the present invention, in the case where supporting carrier number more more than R11, compared with the prior art, reduce the signaling overheads for being used to indicate the activation/deactivation state of carrier wave and/or carrier wave, and realize the favorable compatibility to existing network to the maximum extent.
Description
Technical field
The present invention relates to cordless communication networks, are used to indicate carrier wave and load more particularly, in cordless communication network
The method and device of wavy state.
Background technique
The work project verification about carrier wave polymerization enhancing is had been approved by 3GPP at present, and work project verification can be in RAN1
It is discussed in the meeting of RAN2.One critical function of carrier wave polymerization enhancing is to support the polymerization of 32 carrier waves.According to the viewpoint of RAN2,
The major issue that carrier wave polymerization enhancing is supported in R13 is how to indicate the activation/deactivation state of 32 carrier waves.?
The maximum carrier number supported in R11 is 5, thus, for example carrier wave instructions field and carrier index or from cell index (Scell
Index number of bits) is 3, is used to indicate MAC Control Element (the MAC CE:MAC Control of activation/deactivation state
Element 8 carrier waves) can at most be supported, and in R13, at most needs support 32 carrier waves, the carrier wave instructions field format of R11,
Carrier index and MAC CE format cannot support the activation/deactivation state of 32 carrier waves.Therefore, it designs a kind of more for supporting
The method and device of the activation/deactivation state of a (at least more than 5) carrier wave are very useful.
Summary of the invention
According to it is above-mentioned to background technique and understanding, if it is possible to design one kind and be used to indicate load
The method and device of the activation/deactivation state of wave and carrier wave will be very useful.
According to the first aspect of the invention, a kind of side for being used to indicate Carrier State within a wireless communication network is provided
Method, the maximum number of the carrier wave are N, which comprises the activation of all configuration carrier waves/go are indicated in single MAC CE
State of activation, the MAC CE include sub-header and payload, and the MAC CE is from base station to user device transmissions, wherein N
For the positive integer greater than 5.
According to one embodiment of present invention, the payload length of the MAC CE is fixed as M=Ceiling (N/8)
A byte.
According to one embodiment of present invention, the activation of one carrier wave of each bit indication in the M byte/deactivate
State living.
It according to one embodiment of present invention, further include that N number of carrier wave is divided into M carrier wave set, each carrier wave set is most
It include 8 carrier waves more, the syllable dependent connection in the payload of each carrier wave set and the MAC CE.
According to one embodiment of present invention, the payload length of the MAC CE is by the number of configuration carrier wave Lai really
It is fixed.
According to one embodiment of present invention, the sub-header of the MAC CE extraly include length field indicating bit and
Length Indication domain, wherein the Length Indication domain indicates the length of the payload of the MAC CE.
According to the second aspect of the invention, it provides and a kind of is used to indicate carrier wave shape in the base station of cordless communication network
The method of state, the maximum number of the carrier wave are N, which comprises N number of carrier wave is divided into M carrier wave set, each load
Wave group includes up to 8 carrier waves, and wherein N is the positive integer greater than 5；It is indicated in changed carrier wave set in single MAC CE
Carrier wave activation/deactivation state, the MAC CE includes sub-header and payload, each carrier wave set and described
Syllable dependent connection in useful load in MAC CE, wherein the MAC CE is from base station to user device transmissions.
It according to one embodiment of present invention, further include that N number of carrier wave is divided into M=Ceiling (N/8) a carrier wave set, often
A carrier wave set includes up to 8 carrier waves, and wherein N is the positive integer greater than 5.
According to one embodiment of present invention, the Length Indication domain in the sub-header includes being used to indicate the MAC CE
The carrier wave group information of indicated carrier wave set.
According to one embodiment of present invention, the payload extraly includes be used to indicate the MAC CE effective
The carrier wave group information of indicated carrier wave set in load.
According to one embodiment of present invention, the carrier wave set information include the payload length and it is described effectively
Carrier wave set indicated by load.
It according to one embodiment of present invention, further include effective lotus of the user equipment according to carrier index and MAC CE
The activation/deactivation state combined to determine configuration carrier wave carried.
It according to one embodiment of present invention, further include the user equipment according to the carrier wave rope for receiving the MAC CE
It attracts and judges carrier wave set indicated by the payload of MAC CE.
According to one embodiment of present invention, the carrier index is by carrier wave subindex and carrier wave group identifier joint group
At the carrier wave group identifier is used to indicate the carrier wave set where the carrier wave subindex.
According to the third aspect of the present invention, it provides and a kind of is used to indicate carrier wave shape in the base station of cordless communication network
The maximum number of the device of state, the carrier wave is N, and described device includes: transmission unit, is used for user device transmissions MAC
CE, the MAC CE indicate the activation/deactivation state of all configuration carrier waves, and the MAC CE includes sub-header and effectively carries
The payload length of lotus, the MAC CE is determined that wherein N is the positive integer greater than 5 by the number of configuration carrier wave.
According to the fourth aspect of the present invention, it provides and a kind of is used to indicate carrier wave shape in the base station of cordless communication network
The maximum number of the device of state, the carrier wave is N, and described device includes: allocation unit, for N number of carrier wave to be divided into M carrier wave
Group, each carrier wave set include up to 8 carrier waves, and wherein N is the positive integer greater than 5；Transmission unit is used for user equipment
MAC CE is transmitted, the MAC CE indicates the activation/deactivation state of changed carrier wave, and the MAC CE includes sub-header
And payload, the syllable dependent connection of each carrier wave set and the useful load in the MAC CE are described to have
Effect load extraly includes the carrier wave group information of carrier wave set indicated in the useful load for be used to indicate the MAC CE.
According to the fifth aspect of the present invention, it provides and a kind of is used to indicate carrier wave in the base station of cordless communication network
Method, the maximum number of the carrier wave are N, and the method includes sending carrier wave group identifier and the sub- rope of carrier wave to user equipment
Draw, the carrier wave group identifier is used to indicate the carrier wave set where carrier wave subindex, and wherein N is the positive integer greater than 5.
According to one embodiment of present invention, the fifth aspect of the invention further includes that N number of carrier wave is divided into M=
Ceiling (N/8) a carrier wave set, each carrier wave set include up to 8 carrier waves, each carrier wave set and a carrier wave set
Identifier is associated.
According to one embodiment of present invention, the carrier wave group identifier or the carrier wave subindex can be following any
User device transmissions described in Xiang Zhongxiang: Downlink Control Information；Radio resource control messages.
According to the sixth aspect of the invention, provide it is a kind of in the user equipment of cordless communication network for determine carry
The method of wave, the maximum number of the carrier wave are N, which comprises receive the carrier wave group identifier and load from base station
Marble index, the carrier wave group identifier are used to indicate the carrier wave set where the carrier wave subindex, and wherein N is just greater than 5
Integer.
According to one embodiment of present invention, the user equipment is according to the joint of carrier wave subindex and carrier wave group identifier
Determine carrier wave indicated by the base station.
Compared with the prior art, subtracted based on the solution of the present invention in the case where supporting carrier number more more than R11
The signaling overheads for being used to indicate the activation/deactivation state of carrier wave and/or carrier wave is lacked, and has been realized to the maximum extent to existing
There is the favorable compatibility of network, obtains beneficial technical effect.
Detailed description of the invention
The following detailed description to non-limiting embodiment, other spies of the invention are read by referring to accompanying drawing
Sign, objects and advantages will become more apparent upon.
Fig. 1 shows the activation/deactivation MAC CE payload format schematic diagram of the prior art；
Fig. 2 shows the activation/deactivation MAC CE sub-header form schematic diagrams of the prior art；
Fig. 3 shows the MAC CE according to an embodiment of the invention for being used to indicate Carrier State；
Fig. 4 shows the MAC CE in accordance with another embodiment of the present invention for being used to indicate Carrier State；
Fig. 5 shows the device 500 according to an embodiment of the invention for being used to indicate Carrier State in a base station；And
Fig. 6 shows the device 600 in accordance with another embodiment of the present invention for being used to indicate Carrier State in a base station.
Run through different diagrams in the figure, same or similar appended drawing reference indicates the same or similar device (module)
Or step.
Specific embodiment
In the following detailed description of the preferred embodiment, reference is constituted to the appended attached drawing of present invention a part.Institute
Attached attached drawing, which has been illustrated by way of example, can be realized specific embodiment.Exemplary embodiment is not intended to
Exhaustive all embodiments according to the present invention.It is appreciated that without departing from the scope of the present invention, can use other
Embodiment can also carry out the modification of structure or logic.Therefore, it is below specific descriptions and it is unrestricted, and this
The range of invention is defined by the claims appended hereto.It should be noted that although describing this hair in attached drawing with particular order
The step of bright middle method, but this does not require that or implies must execute these operations in this particular order, or
It is to have to carry out operation shown in whole to be just able to achieve desired as a result, on the contrary, step described herein can change and hold
Row sequence.Additionally or alternatively, it is convenient to omit multiple steps are merged into step and executed by certain steps, and/or by one
A step is decomposed into execution of multiple steps.
Content in order to better understand the present invention, the present invention is to from cell, carrier wave, from cell index, carrier index it
Between relationship be described.Each correspond to a carrier wave from cell, in the present invention from cell index (Scell index)
It can be understood as carrier index, wherein main carrier index can be defaulted as 000.
In LTE R13, the carrier wave polymerizable functional of existing LTE R11 needs to enhance to support 32 carrier waves.LTE R11
Define the MAC CE payload format of the activation/deactivation state of the prior art as shown in Figure 1.MAC as shown in Figure 1
The length of CE payload is 1 byte, and each bit in the byte represents a carrier wave.Fig. 2 shows the prior arts
Activation/deactivation MAC CE sub-header form schematic diagram, the length of the sub-header is also 1 byte, and it includes two reservations
Position (Reserved), the LCID (logical channel identifier) of an extension bits (Extension) and 5 bits.For the user of R11
For equipment, 5 carrier waves can be at most supported simultaneously.Therefore, the MAC CE of the prior art can indicate that all configurations carry simultaneously
The activation/deactivation state of wave.That is, even if base station does not change the activation/deactivation of certain carrier waves in 5 carrier waves
The activation/deactivation state of those carrier waves not changed still is included in MAC CE by state, base station.Although this must not
Want, but due to requiring to send the MAC CE that length is a byte anyway with indicate to be up to the activation of 5 carrier waves/
Deactivation status, such operation can't bring additional signaling overheads.In R13, since user equipment at most can be same
When be configured 32 carrier waves, and base station is possible to the activation/deactivation state for merely desiring to change some of them carrier wave, thus how
The MAC CE format for designing activation/deactivation state that is a kind of flexible and saving signaling overheads becomes particularly important.
It is maximum in R11 only to support 5 carrier waves, so carrier index is defined with 3 bits in R11, such as carrying
It is related to the process of carrier index in wave instructions field (CIF:Carrier Indicator Field) and in high-level signaling
In.Since maximum will support 32 carrier waves in R13, so being needed at least with 5 bit definitions from cell index.Therefore, exist
It is all be related to carrier index (or from cell index) information unit (IE:Information Element) during, such as
Cross-carrier scheduling, carrier activation/deactivation, power headroom reporting (PHR:Power Head Room) process etc., be used to indicate from
The bit number of carrier index is 5 bits at least.For example, 01110 represents carrier index as 14 carrier wave.For cross-carrier scheduling,
CIF is used as identifying the carrier wave of scheduling grant (SR:Scheduling Grant).The CIF can also be considered as being only used for L1
The carrier index information of (Layer 1) signaling.
Therefore, in order to clearly indicate each carrier wave in R13, the invention proposes the following two kinds method indication carrier waves:
1) number of bits of the relevant index of indication carrier wave is extended to 5 bits to support 32 carrier waves.Namely in carrier wave
In polymerization it is all be related to carrier index during, such as Downlink Control Information (DCI:Downlink Control
Information), the carrier index of R11 is directly extended to 5 bits by MAC CE, RRC signaling etc..For example, in R13, CIF
In carrier index be 000000-11111 to support maximum 32 carrier waves, wherein the first two bit of 5 bit also can be used as
Group identifier.For example, 00111 instruction is carrier wave that carrier wave subindex in carrier wave set 1 is 7, carrier index 7；10110
What is indicated is the carrier wave that the carrier wave subindex in carrier wave set 3 is 6, and carrier index 22, wherein main carrier index can be defaulted as
00000。
2) concept of carrier wave set is introduced, base station sends carrier wave group identifier and carrier wave subindex, carrier wave set to user equipment
Identifier is used to indicate the carrier wave set where carrier index.
By the way that N number of carrier wave is divided into M carrier wave set, each carrier wave set includes up to 8 carrier waves, each carrier wave
Group and a carrier wave group identifier are associated, and wherein N is the maximum carrier number for configuring carrier wave.It preferably, can be by N number of carrier wave point
At M=Ceiling (N/8) a carrier wave set, each carrier wave set includes up to 8 carrier waves, and wherein N is the positive integer greater than 5.
In the present invention, Ceiling representative rounds up, such as Ceiling (31/8)=4, Ceiling (63/8)=8 and Ceiling
(34/8)=5.By taking N=32 carrier wave as an example, most 32 carrier waves are divided into 4 carrier wave sets, each group includes up to 8 loads
Wave.Each carrier wave in each carrier wave set is indicated with 3 bits.In this way, 2 bit indication carrier waves can be used in R13
Group identifier and 3 bits are in indication carrier wave subindex.Namely carrier index is identified by carrier wave group identifier and with carrier wave set
Accord with associated carrier wave subindex joint definition.Carrier wave subindex associated with carrier wave group identifier can with 3 bits come
It indicates, carrier wave group identifier can be indicated with 2 bits.For example, when carrier wave group identifier is 10, with carrier wave group identifier phase
When associated carrier wave subindex is 110, it is the 2nd group that carrier wave group identifier 10, which represents the carrier wave set, related to carrier wave group identifier
The carrier wave subindex of connection is that 110 to represent carrier wave subindex associated with carrier wave set 10 be 6.So carrier wave group identifier 10 and with
The associated carrier wave subindex 110 of carrier wave group identifier 10 represents carrier index as 14 carrier wave.
Carrier wave group identifier or the carrier wave subindex can be in following any one to the user device transmissions: DCI；
Radio resource control messages (RRC:Radio Resource Control).For example, in the RRC signaling configured for carrier wave extremely
It less should include carrier wave group identifier.In another example carrier wave group identifier can be defaulted as 00 for the carrier wave set including main carrier,
Carrier wave subindex corresponding with main carrier can also be defaulted as 000.
In a user device, when reception is from the carrier wave group identifier and carrier wave subindex of base station, carrier wave group identifier
The carrier wave set being used to indicate where the carrier wave subindex.User equipment can be according to the connection of carrier wave subindex and carrier wave group identifier
It closes and determines carrier wave indicated by base station.
The advantages of introducing carrier wave set is can be compatible with the Signalling Designing of R11 to the maximum extent, especially in carrier wave set
Operation.For example, for the cross-carrier scheduling in carrier wave set 3 bit CIF in existing DCI signaling can be reused, because working as
When the carrier wave and scheduled carrier wave for sending dispatch are in same carrier wave set, 3 bit CIF are enough to distinguish 8 carrier waves.Class
As, R11 signaling can also be reused for the activation/deactivation state of indication carrier wave, and report PHR.When need realize across
When carrier wave group scheduling, in L1 and high-level signaling, such as RRC signaling, it is necessary to make user equipment including carrier wave group identifier
It can correctly know which carrier wave set the carrier wave being scheduled in cross-carrier group scheduling belongs to, in effective load of MAC CE
Which carrier wave set is the activation/deactivation state of indicated carrier wave be in lotus, and include in PHR MAC CE is those loads
The PHR of wave.
According to one embodiment of present invention, it provides in a kind of base station of cordless communication network and is used to indicate Carrier State
Method, the maximum number of the carrier wave is 32, the activation/deactivation states of all configuration carrier waves are indicated in single MAC CE,
The MAC CE includes sub-header and payload.Without loss of generality, although the maximum carrier wave used in the embodiment of the present invention
Number is 32, those skilled in the art should understand that be the solution of the present invention be readily applicable to maximum carrier number be 16,
The instruction of 64,128 activation/deactivation state.
When the activation/deactivation state for indicating all configuration carrier waves in single MAC CE, wherein the MAC CE includes son
When header and payload, the activation/deactivation state of indication carrier wave can be at least carried out there are three types of different schemes.
Scheme 1.1: the payload length of the MAC CE can be fixed to 4 bytes.Because maximum carrier number is
32, so needing 32 bits at least to respectively represent the activation/deactivation state of each carrier wave.Because each byte includes 8
The activation/deactivation state of a bit, each carrier wave can be indicated with the byte of carrier wave set associated with the carrier wave.Example
Such as, if carrier index is directly expanded to 5 bits in CIF and RRC signaling:
1st byte is used to indicate the activation/deactivation state for the carrier wave that carrier index is 00000-00111；
2nd byte is used to indicate the activation/deactivation state for the carrier wave that carrier index is 01000-01111；
3rd byte is used to indicate the activation/deactivation state for the carrier wave that carrier index is 10000-10111；
4th byte is used to indicate the activation/deactivation state for the carrier wave that carrier index is 11000-11111.
In another example if introduced in indication carrier wave in carrier wave group identifier, the program 1 are as follows:
1st byte is used to indicate the activation/deactivation state for the carrier wave that carrier wave group identifier is 00；
2nd byte is used to indicate the activation/deactivation state for the carrier wave that carrier wave group identifier is 01；
3rd byte is used to indicate the activation/deactivation state for the carrier wave that carrier wave group identifier is 10；
4th byte is used to indicate the activation/deactivation state for the carrier wave that carrier wave group identifier is 11.
In this way, user equipment can be only concerned the byte of configuration carrier wave at present, and ignore other bytes.So Yong Hushe
It is standby can be to avoid the ambiguous operation of activation/deactivation state to carrier wave.The sub-header content of 1 byte in MAC CE
Including two reserved bits, an extension bits and LCID, wherein LCID can be, for example, 11011, and instruction MAC CE's is effective
Load is regular length, such as 4 bytes.When user equipment receives the MAC CE, user equipment is known that MAC CE's
Payload is regular length, such as 4 bytes.
The advantages of payload length of MAC CE is fixed as such as 4 bytes is the simplicity of user facility operation,
And the activation/deactivation state for being up to 32 carrier waves can be handled simultaneously.But due to no matter user equipment be only concerned it is several
A byte must all have 4 bytes in the payload of MAC CE.For example, if user equipment is configured for being no more than 8
Carrier wave, actually user equipment are possible to be only concerned 1 byte, then the signaling of other 3 bytes is extra and may lead
Cause unnecessary signaling overheads.
Scheme 1.2: the problem of for unnecessary signaling overheads in solution 1.1, the payload of MAC CE is long
Degree can be determined by the number of configuration carrier wave.That is, the length of the payload of MAC CE is a variable, with
It configures the number of carrier wave and changes.For example,
If the length for configuring payload of the number no more than 8, MAC CE of carrier wave is 1 byte；
If it is 2 bytes that the number for configuring carrier wave, which is greater than 8 but is not more than the length of the payload of 16, MAC CE,；
If it is 3 bytes that the number for configuring carrier wave, which is greater than 16 but is not more than the length of the payload of 24, MAC CE,；
If it is 4 bytes that the number for configuring carrier wave, which is greater than 24 but is not more than the length of the payload of 32, MAC CE,.
It will be understood by those skilled in the art that even if the configuration carrier index of user equipment is discontinuous, for example,
Carrier index is 00001,00110,00111,01000 and 01100.Base station can by way of sequence, such as ascending order or
The activation/deactivation state of these carrier waves is placed on the effective of the MAC CE that length is 1 byte by descending or other suitable modes
In load.
When transmitting MAC CE, base station and user equipment are aware that the number for being currently configured carrier wave.So base station is according to mesh
The number of preceding configuration carrier wave determines the length of the payload of MAC CE, and the MAC CE of generation is sent to user equipment.
As MAC CE transmitted by the user equipment receives the base station, which determines according to the number of current configuration carrier wave
The length of the payload of MAC CE, and each carrier wave indicated in the MAC CE is correspondingly identified by solution parsing MAC CE
Activation/deactivation state.
Compared to scheme 1.1, the advantages of program is the length of the payload of MAC CE with the number of configuration carrier wave
And change, it does not include extra byte in the payload of MAC CE, signaling overheads is smaller.Therefore, scheme 1.2 optimizes
The length of MAC CE payload.Another advantage of the program is simple and the length of MAC CE sub-header is a word
Section.That is, because in most cases, the number for configuring carrier wave is synchronous in base station and user equipment, so not having
It is necessary to the length of the payload of MAC CE is explicitly indicated in the sub-header of MAC CE.In scheme 1.2, MAC CE's
The format of sub-header can be identical with the format of sub-header of MAC CE in scheme 1.1.
The length of scheme 1.3:MAC CE payload can also be indicated by the sub-header of the MAC CE.The son of MAC CE
Header extraly includes length field indicating bit (F) and Length Indication domain (L), and wherein Length Indication domain (L) indicates having for MAC CE
Imitate the length of load.In scheme 1.3, the format and scheme 1.2 of MAC CE payload are identical, and MAC sub-header includes 2 words
Section, a byte are used for reserved bit, extension bits and LCID, another byte is used for the domain F and L.In MAC CE payload, with
The advantages of corresponding byte number in the domain L arranges the program according to the carrier wave set sequence of configured carrier wave is to have completely unified base station
The user equipment of interpretation with to(for) MAC CE content, and ensure that the correct operation of user equipment.
According to another embodiment of the invention, it provides and a kind of is used to indicate carrier wave in the base station of cordless communication network
The method of state, the maximum number of the carrier wave is 32, this method comprises: N number of carrier wave is divided into M carrier wave set, each load
Wave group includes up to 8 carrier waves, and wherein N is the positive integer greater than 5.Changed carrier wave set is indicated in single MAC CE
Activation/deactivation state, the MAC CE include sub-header and payload, the useful load in each carrier wave set and the MAC CE
Syllable dependent connection, wherein the MACCE is from base station to user device transmissions.Preferably, N number of carrier wave can be divided into M=
Ceiling (N/8) a carrier wave set, each carrier wave set include up to 8 carrier waves, and wherein N is the positive integer greater than 5.Specifically
Ground, for example, if carrier index is directly expanded to 5 bits in CIF and RRC signaling:
Carrier wave set 1 includes the carrier wave that carrier index is 00000-00111；
Carrier wave set 2 includes the carrier wave that carrier index is 01000-01111；
Carrier wave set 3 includes the carrier wave that carrier index is 10000-10111；
Carrier wave set 4 includes the carrier wave that carrier index is 11000-11111.
Syllable dependent connection in each carrier wave set and the useful load of MAC CE.This is conducive to base station and user equipment
Position of the specific carriers in MAC CE is determined according to carrier wave set.Since the user equipment knows that each byte and which carrier wave
It is associated, therefore user equipment knows that the activation/deactivation state of which carrier wave is changing.For example, if MAC CE
Useful load in a byte and carrier wave set 2 it is associated, user equipment knows swashing for all carrier waves in carrier wave set 2
Work/deactivation status.
In addition, because the length of the useful load of the MAC CE in the embodiment is a variable, in the son of MAC CE
It extraly to include F/L byte in header.
In the embodiment of the activation/deactivation state of all configuration carrier waves of instruction of the invention, regardless of whether base station changes
The activation/deactivation state for having become carrier wave includes all status informations for configuring carrier waves in each MAC CE.When carrier wave
In the case that state is not frequent change or the configuration of most of carrier activation/deactivation status is under semi-static situation,
Base station can also only indicate the activation/deactivation state of changed configuration carrier wave.
As the activation/deactivation state for only indicating changed configuration carrier wave in single MAC CE, and the MAC CE
Including sub-header and when payload, can at least there are following three kinds of different schemes to carry out the activation/deactivation shape of indication carrier wave
State.
Scheme 2.1: it when the length of the useful load of MAC CE is a variable, is needed in the sub-header of MAC CE additional
Including F/L byte.And the domain L in existing MAC CE is used to refer to show the byte number in MAC CE payload, in this way
User equipment can correctly decode MAC CE payload, but if user equipment just knows that the byte number of payload
Without knowing carrier wave set associated by the byte of payload, user equipment is still had no idea to determine each in payload
It is the activation/deactivation state of which carrier wave set that byte is corresponding.In the MAC CE for being used to indicate activation/deactivation state, have
The length for imitating load is 1 byte or multiple bytes, and each byte and a carrier wave set are associated.If in MAC CE sub-header
The domain L indicate that the carrier wave group information of carrier wave set indicated by MAC CE, the carrier wave group information can include at least carrier wave set number
With indicated carrier wave set.The number of carrier wave set indicated by the length of MAC CE payload and Length Indication domain is associated.
In this way, the domain L can not only indicate the length of MAC CE payload, it also can indicate that and arrived in MAC CE payload
Bottom instruction is those carrier wave sets.For example, it is assumed that the domain L instruction MAC CE includes carrier wave set 1 and carrier wave set 2, then MAC CE
The length of payload is 2 bytes.In another example the domain L instruction MAC CE includes carrier wave set 1, carrier wave set 3 and carrier wave set 4, that
The length of MAC CE payload is 3 bytes.So the key of scheme 2.1 be redefined the meaning in the domain L, rather than
The length of the payload of MAC CE is directly indicated using the existing domain L.Moreover, in scheme 2.1 MAC CE payload
Length implicitly indicated by the domain L.Specifically, in the domain L, such as preceding 4 bits are used to indicate MAC CE and are included
Carrier wave set, each bit and carrier wave set are associated.Other three bits can be used as reserved bit.For example, such as Fig. 3 institute
Show, first bit of rightmost represents carrier wave set 1, and second bit of rightmost represents carrier wave set 2, the third of rightmost
Bit represents carrier wave set 3, and the 4th bit of rightmost represents carrier wave set 4, other bits not used can be set
For " 0 ".If the domain L is included in MAC CE for the carrier wave set where " 1 " is defined as the carrier wave, according to " 1 " in the domain L
Number be assured that the length of MAC CE payload, be assured that MAC CE is effectively carried according to the position of " 1 " in the domain L
The indicated carrier wave set of lotus.
As shown in figure 3, each byte and a carrier wave set are associated in the payload portions of MAC CE.That is
8 bits in each byte have indicated respectively the activation/deactivation state of 8 carrier waves in the carrier wave set.For example, user sets
Standby to be configured for 32 carrier waves, each carrier wave and a carrier wave set are associated, carrier index 00000-11111.In MAC CE
Preceding 4 bits in the domain L of sub-header are " 0010 ", because only that be " 1 " with bit corresponding to carrier wave set 2, that is,
The number of " 1 " is 1 in the domain L, so the length of MAC CE payload is 1 byte.And bit is " 1 " in the domain L
Corresponding bit is carrier wave set 2, thus in MAC CE payload byte it is corresponding be the carrier wave in carrier wave set 2 activation/go
The activation/deactivation state or carrier wave group identifier for the carrier wave that state of activation namely carrier index are 01000-01111 be
The activation deactivation status of the carrier wave of " 01 ".When user equipment receives the domain L and MAC CE in the MAC CE of base station
Payload, user equipment can correspondingly determine in the payload of MAC CE byte instruction be in carrier wave set 2
Carrier wave activation/deactivation state, the activation/deactivation state of the carrier wave of other three carrier wave sets do not change.
Scheme 2.2: in scheme 2.1, the domain L in MAC CE sub-header is used to indicate carrier wave set indicated by MAC CE.
It extraly include being used to indicate meaning in the useful load of the MAC CE in the payload of MAC CE in scheme 2.2
The carrier wave group information for the carrier wave set shown.
Specifically, as shown in figure 4, scheme 2.2 introduces a new byte in the payload of MAC CE.The new word
Section is used to indicate carrier wave set indicated by the useful load of MAC CE.For example, as shown in figure 4, first bit generation of rightmost
Table carrier wave set 1, second bit of rightmost represent carrier wave set 2, and the third bit of rightmost represents carrier wave set 3, rightmost
The 4th bit represent carrier wave set 4, other bits not used can be set to " 0 ".If by new byte
Bit " 1 " be defined as the carrier wave where carrier wave set be included in MAC CE, then according to " 1 " in carrier wave group information
Number is assured that the length of MAC CE payload, is assured that MAC CE according to the position of " 1 " in carrier wave group information
The indicated carrier wave set of payload.In addition it is also possible to specifically indicate carrier wave set indicated by payload with the byte
Carrier wave set identification information.
As shown in figure 4, user equipment first checks for the domain L of MAC CE sub-header to obtain the length of the payload of MAC CE
Degree, then user equipment extracts the payload of MAC CE.According to the first character section of the payload of MAC CE, user equipment
Determine carrier wave set indicated in the payload of MAC CE.For example, if the bit of carrier wave set 2 and carrier wave set 4 is " 1 ",
What so user equipment knew second byte instruction of the payload of MAC CE is carrier wave set 2, if in CIF and RRC
Carrier index is directly expanded to 5 bits in signaling, and the carrier index of carrier wave set 2 is 01000-01111, effective load of MAC CE
The third byte instruction of lotus is carrier wave set 4, and the carrier index of carrier wave set 4 is 11000-11111.In another example if carrier wave
The bit of group 2 and carrier wave set 4 is " 1 ", and introduces carrier wave group identifier so user equipment and know that MAC CE's is effective
Second byte instruction of load is carrier wave set 2, and carrier wave group identifier is the third word of the payload of 01, MAC CE
Section instruction is carrier wave set 4, and carrier wave group identifier is 11.For other configurations carrier wave set, their activation/deactivation state
There is no variations.
2.2 maximum of scheme can support the activation/deactivation state of 32 carrier waves of instruction, and the advantage is that can not only protect
The correct operation of user equipment is demonstrate,proved, and compatible with the word header of existing MAC CE.
Scheme 2.3: defining the format for being used to indicate the payload of MAC CE of activation/deactivation state in R11,
What the payload of the MAC CE in R11 indicated is the activation/deactivation state of carrier wave 001-111.In R13, carrier index
Range expand as 00001-11111, but the length of the payload of MAC CE remains as one in the prior art namely R11
A byte.When only indicating the activation/deactivation state of changed carrier wave set in single MAC CE, the present invention is by 32
Carrier wave is divided into 4 carrier wave sets, and each carrier wave set includes up to 8 carrier waves, and each carrier wave and a carrier wave set are associated, if with
Which carrier wave set what family equipment was able to know that the payload instruction of the MAC CE of 1 byte is, user equipment it is known that
The activation/deactivation state of carrier wave in the carrier wave set.The carrier index for the MAC CE that user equipment is received by inspection
To determine carrier wave set indicated by the payload of the MAC CE.For example, it is assumed that user equipment is configured for 24 carrier waves.One
In a time slot, it is 01010 to be used to indicate activation/deactivation state that user equipment, which has received the carrier index from base station,
MAC CE payload, what user equipment can judge the payload instruction of received MAC CE is carrier wave set 2,
Because carrier index 01010 is the carrier index in carrier wave set 2 (01000-01111), user equipment can further judge this
What the payload of MAC CE indicated is the situation of change of the activation/deactivation state of the carrier wave in carrier wave set 2, that is, should
What the payload of MAC CE indicated is the situation of change of the activation/deactivation state of the carrier wave of carrier index 01000-01111.
It can be seen that scheme 2.3 can not only guarantee the correct operation of user equipment, and pass through carrier index and MAC
The joint of the payload instruction of CE, under the premise of not increasing the payload signaling overheads of MAC CE, maximum can be supported
Indicate the activation/deactivation state of 32 carrier waves.
Fig. 5 is shown according to an embodiment of the invention is used to indicate carrier wave shape in the base station of cordless communication network
The maximum number of the device 500 of state, the carrier wave is N, which includes: transmission unit 510, is used for user device transmissions
MAC CE, the MAC CE indicate the activation/deactivation state of all configuration carrier waves, and the MAC CE includes sub-header and effectively carries
The payload length of lotus, the MAC CE is determined that wherein N is the positive integer greater than 5 by the number of configuration carrier wave.
Fig. 6 show according to another embodiment of the invention be used to indicate carrier wave in the base station of cordless communication network
The maximum number of the device 600 of state, the carrier wave is N, and described device includes: allocation unit 620, for dividing N number of carrier wave
At M=Ceiling (N/8) a carrier wave set, each carrier wave set includes up to 8 carrier waves, and wherein N is the positive integer greater than 5；
Transmission unit 610, for indicating the activation of changed carrier wave/deactivate to user device transmissions MAC CE, the MAC CE
State living, the MAC CE include sub-header and payload, in each carrier wave set and the MAC CE it is described effectively
One syllable dependent of load joins, and the payload extraly includes signified in the useful load for be used to indicate the MAC CE
The carrier wave group information for the carrier wave set shown.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
How from the point of view of, the present embodiments are to be considered as illustrative and not restrictive.In addition, it will be evident that one word of " comprising " not
Exclude other elements and steps, and wording "one" be not excluded for plural number.The multiple element stated in device claim can also
To be implemented by one element.The first, the second equal words are used to indicate names, and are not indicated any particular order.
Claims (19)
1. the method that one kind is used to indicate Carrier State within a wireless communication network, the maximum number of the carrier wave is N, the side
Method includes:
N number of carrier wave is divided into M carrier wave set, each carrier wave set includes up to 8 carrier waves, and wherein N is just whole greater than 5
Number；And
The activation/deactivation state of all configuration carrier waves is indicated in single MAC CE, the MAC CE includes sub-header and has
Syllable dependent connection in the payload of effect load, each carrier wave set and the MAC CE, wherein the MAC CE
From base station to user device transmissions.
2. the method according to claim 1, wherein the payload length of the MAC CE is fixed as M=
Ceiling (N/8) a byte.
3. according to the method described in claim 2, it is characterized in that, one carrier wave of each bit indication in the M byte
Activation/deactivation state.
4. the method according to claim 1, wherein the payload length of the MAC CE is by configuration carrier wave
Number determines.
5. the method according to claim 1, wherein the sub-header of the MAC CE extraly includes length
Domain indicating bit and Length Indication domain, wherein the Length Indication domain indicates the length of the payload of the MAC CE.
6. a kind of method for being used to indicate Carrier State in the base station of cordless communication network, the maximum number of the carrier wave is N,
The described method includes:
N number of carrier wave is divided into M carrier wave set, each carrier wave set includes up to 8 carrier waves, and wherein N is just whole greater than 5
Number；And
The activation/deactivation state of the carrier wave in changed carrier wave set, the MAC CE packet are indicated in single MAC CE
Enclosed tool header and payload, the syllable dependent connection in the payload in each carrier wave set and the MAC CE,
Wherein, the MAC CE is from base station to user device transmissions.
7. according to the method described in claim 6, it is characterized in that, further including that N number of carrier wave is divided into M=Ceiling (N/8) is a
Carrier wave set, each carrier wave set include up to 8 carrier waves, and wherein N is the positive integer greater than 5.
8. the method according to the description of claim 7 is characterized in that the Length Indication domain (L) in the sub-header includes being used for
Indicate the carrier wave group information of carrier wave set indicated by the MAC CE.
9. the method according to the description of claim 7 is characterized in that the payload extraly include be used to indicate it is described
The carrier wave group information of indicated carrier wave set in the payload of MAC CE.
10. the method according to any one of claim 8-9, which is characterized in that the carrier wave set information has including described
Imitate carrier wave set indicated by the length and the payload of load.
11. the method according to the description of claim 7 is characterized in that further including the user equipment according to carrier index and MAC
The activation/deactivation state of the payload of CE combined to determine configuration carrier wave.
12. according to the method for claim 11, which is characterized in that further include that the user equipment is according to receiving
The carrier index of MAC CE judges carrier wave set indicated by the payload of MAC CE.
13. according to the method for claim 12, the carrier index is by carrier wave subindex and carrier wave group identifier joint group
At the carrier wave group identifier is used to indicate the carrier wave set where the carrier wave subindex.
14. a kind of device for being used to indicate Carrier State in the base station of cordless communication network, the maximum number of the carrier wave are
N, described device include:
Allocation unit, for N number of carrier wave to be divided into M carrier wave set, each carrier wave set includes up to 8 carrier waves, and wherein N is
Positive integer greater than 5；
Transmission unit, for indicating the activation/deactivation of all configuration carrier waves to user device transmissions MAC CE, the MAC CE
State, the MAC CE include sub-header and payload, effective load in each carrier wave set and the MAC CE
A syllable dependent for lotus joins, and the payload length of the MAC CE is determined by the number of configuration carrier wave.
15. a kind of device for being used to indicate Carrier State in the base station of cordless communication network, the maximum number of the carrier wave are
N, described device include:
Allocation unit, for N number of carrier wave to be divided into M carrier wave set, each carrier wave set includes up to 8 carrier waves, and wherein N is
Positive integer greater than 5；
Transmission unit, for indicating the activation of changed carrier wave/deactivate to user device transmissions MAC CE, the MAC CE
State living, the MAC CE include sub-header and payload, in each carrier wave set and the MAC CE it is described effectively
One syllable dependent of load joins, and the payload extraly includes signified in the payload for be used to indicate the MAC CE
The carrier wave group information for the carrier wave set shown.
16. a kind of method for being used to indicate carrier wave in the base station of cordless communication network, the maximum number of the carrier wave is N, institute
The method of stating includes
N number of carrier wave is divided into M=Ceiling (N/8) a carrier wave set, each carrier wave set includes up to 8 carrier waves, Mei Gesuo
It states carrier wave set and a carrier wave group identifier is associated；And
Carrier wave group identifier is sent to user equipment and carrier wave subindex, the carrier wave group identifier are used to indicate carrier wave subindex
The carrier wave set at place, wherein N is the positive integer greater than 5.
17. according to the method for claim 16, which is characterized in that the carrier wave group identifier or the carrier wave subindex energy
Enough to the user device transmissions in following any one:
Downlink Control Information；
Radio resource control messages.
18. a kind of method in the user equipment of cordless communication network for determining carrier wave, the maximum number of the carrier wave are
N, the method includes
The carrier wave group identifier and carrier wave subindex from base station are received, the carrier wave group identifier is used to indicate the carrier wave
Carrier wave set where subindex, wherein N number of carrier wave is divided into M=Ceiling (N/8) a carrier wave set, each carrier wave set is most
It include 8 carrier waves, each carrier wave set and a carrier wave group identifier are associated, and N is the positive integer greater than 5 more.
19. according to the method for claim 18, which is characterized in that the user equipment is according to carrier wave subindex and carrier wave set
The joint of identifier determines carrier wave indicated by the base station.
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| CN106304248B (en) * | 2015-05-15 | 2019-09-27 | 上海诺基亚贝尔股份有限公司 | The method and apparatus of activation/deactivation media access control control unit are set |
| CN106603212A (en) * | 2015-10-20 | 2017-04-26 | 北京信威通信技术股份有限公司 | Indication and acquisition method of carrier information under multi-carrier aggregation |
| CN109547175B (en) * | 2017-08-11 | 2020-10-30 | 电信科学技术研究院 | Bearer mapping method, device, base station and terminal |
| WO2020237623A1 (en) * | 2019-05-31 | 2020-12-03 | Qualcomm Incorporated | Enhanced mac-ce and rrc ie for multi-carrier configurations |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102291729A (en) * | 2010-06-21 | 2011-12-21 | 上海贝尔股份有限公司 | Excitation and deexcitation component carrier wave |
| CN102668412A (en) * | 2009-10-30 | 2012-09-12 | 株式会社泛泰 | Apparatus and method for transmitting/receiving activation indicator regarding component carrier in wireless communication system |
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| US8855095B2 (en) * | 2010-04-29 | 2014-10-07 | Innovative Sonic Corporation | Method and apparatus for a component carrier deactivation timer in a wireless communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102668412A (en) * | 2009-10-30 | 2012-09-12 | 株式会社泛泰 | Apparatus and method for transmitting/receiving activation indicator regarding component carrier in wireless communication system |
| CN102291729A (en) * | 2010-06-21 | 2011-12-21 | 上海贝尔股份有限公司 | Excitation and deexcitation component carrier wave |
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