CN105338611A - Method for transmitting PH (Power Headroom) information through MAC (Media Access Control) CE (Control Element) - Google Patents
Method for transmitting PH (Power Headroom) information through MAC (Media Access Control) CE (Control Element) Download PDFInfo
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Abstract
The invention provides a method and a device for transmitting PH (Power Headroom) information through an MAC (Media Access Control) CE (Control Element). The method is applied to a wireless communication network, and used for reporting the PH information through the MAC CE on a UE (User Equipment) side. Dual connections are established between the UE and a main evolved Node B and a secondary evolved Node B. The method comprises the following steps: configuring a bitmap byte in the MAC CE; configuring the PH information of a Pcell or a PScell of a dual-connectivity non-scheduled evolved Node B at a predetermined position in the MAC CE; and sequentially configuring the PH information of other active cells at other positions in the MAC CE according to a cell index sequence.
Description
Technical field
The present invention generally relates to wireless communication field, more specifically, relates to a kind of method being controlled (MAC) control element (CE) through-put power surplus (PowerHeadroom, PH) information by media interviews.
Background technology
Current, about dual link (DualConnectivity, DC) power headroom reporting (PHR) (PowerHeadroomReport, PHR) RAN1 Email discussion terminates, in this Email is discussed, about the format design of RAN2DCPHRMACCE, consistent below having reached, namely, in dual link situation (such as subscriber equipment (UE) and set up the situation of dual link between a dominant base and a prothetic group station), UE always belongs to another cell set (CG)/base station (eNB) (namely to scheduling base station report, non-scheduled base station) main plot (Pcell) or the type 2PH information of special auxiliary community (PScell).
Before discussion, first following term is made an explanation:
Power headroom (PH) refers to the difference of the maximum transmit power (Pcmax) of UE and the theoretical emitted power of Physical Uplink Shared Channel (PUSCH), and it reports scheduling base station by power headroom reporting (PHR) (PHR).
According to the difference of carried information, PH information is divided into again Class1 PH information and type 2PH information, and wherein Class1 PH information refers to the PH information relevant to transfer of data, and type 2PH information refers to the PH information relevant to signalling.
As everyone knows, in dual link situation, only have the PScell at the Pcell of dominant base or prothetic group station to transmit by carrier signaling, therefore only have their PH information possibility containing type 2PH information.
Scheduling base station (S_eNB), refers to the base station of triggering PH report.
Non-scheduled base station (NS_eNB), refers to the base station of another CG, and it is the base station of not triggering PH report.
Based on these definition, what reach in the discussion of RAN1 Email is unanimously for DC situation, the type 2PH information of NS_eNB is always sent to S_eNB, and does not consider that the UL of NS_eNB in the Transmission Time Interval transmitted for PHR (TTI) transmits situation (whether such as NS_eNB has UL transmission in this TTI).And for S_eNB, whether type 2PH information exists is determined by the UL transmission situation of current S_eNB.That is, if in the TTI of correspondence non-configures physical ascending control channel (PUCCH), then not for S_eNB provides type 2PH information.Otherwise if PUCCH transmission occurs, then need the type 2PH information comprising S_eNB, the type 2PH information calculates based on the PUCCH transformat of reality.If but PUCCH is configured but does not transmit in this TTI, then for S_eNB reports virtual type 2PH value.
Summary of the invention
But, current also not about how to design in DC situation for transmit MACCE (i.e. DCPHRMACCE) form of PHR to make the Class1 of S_eNB and NS_eNB, 2PH information can be included, and easily by S_eNB identification/demultiplexing, and the scheme obscured can not be caused.
For above problem, the invention provides a kind of method and apparatus being transmitted PH information by MACCE.
According to a first aspect of the invention, provide a kind of within a wireless communication network, report the method for PH information in UE side by MACCE, wherein dual link is set up at this UE and dominant base and a prothetic group station, and described method comprises: configure the bit map byte in described MACCE; The PH information of Pcell or PScell of the non-scheduled base station of the pre-position configuration dual link in described MACCE; Other positions in described MACCE, configure the PH information of other small active areas according to cell index sequence order.
According to a second aspect of the invention, provide a kind of within a wireless communication network, received the method for PH information by MACCE in scheduling base station side, wherein dual link is set up at a UE and dominant base and a prothetic group station, and described method comprises: the bit map byte of the described MACCE that decodes; The type 2PH value byte of the pre-position of decoding in described MACCE, non-scheduled base station and Class1 pH value byte; According to the cell index sequence order ground PH information of the scheduling base station of other positions in described MACCE of decoding and other small active areas of non-scheduled base station.
According to a third aspect of the present invention, provide a kind of within a wireless communication network, the method of PH information is reported by MACCE in UE side, wherein dual link is set up at this UE and dominant base and a prothetic group station, described method comprises: the bit map byte in configuration MACCE, and the bit wherein pointing to the PScell at prothetic group station in bit map byte is set to 0; Pre-position in described MACCE configures the PH information of the Pcell of described dominant base and the PScell at described prothetic group station; Other positions in described MACCE, configure the PH information of other small active areas according to cell index sequence order.
According to a fourth aspect of the present invention, provide a kind of within a wireless communication network, received the method for PH information by MACCE in scheduling base station side, wherein dual link is set up at a UE and dominant base and a prothetic group station, and described method comprises: the bit map byte of the described MACCE that decodes; The PH information of the Pcell of the pre-position of decoding in described MACCE, described dominant base and the PScell at described prothetic group station; According to the ground of the cell index sequence order in the described bit map byte PH information of other small active areas of other positions in described MACCE of decoding.
According to a fifth aspect of the present invention, provide a kind of within a wireless communication network, the method of PH information is reported by MACCE in UE side, wherein dual link is set up at this UE and dominant base and a prothetic group station, described method comprises: configure the bit map byte in described MACCE, and the bit wherein pointing to the PScell at prothetic group station in this bit map byte is set to 1; After described bit map byte, configure the PH information of the Pcell of described dominant base; After the PH information of the Pcell of described dominant base, configure the PH information of Scell and PScell of the Scell of the activity of described dominant base and the activity at described prothetic group station according to cell index sequence order.
According to a sixth aspect of the invention, provide a kind of within a wireless communication network, received the method for PH information by MACCE in scheduling base station side, wherein dual link is set up at a UE and dominant base and a prothetic group station, and described method comprises: the bit map byte of the described MACCE that decodes; If described scheduling base station is dominant base, then transmit situation according to the UL of the Pcell of this dominant base to decode the PH information of Pcell of this dominant base, and according to the cell index order of described bit map byte instruction, the PH information of Scell and PScell of the Scell of the activity of ensuing described dominant base of decoding and the activity at described prothetic group station; If described scheduling base station is prothetic group station, after the described bit map byte of decoding, then directly decode the PH information of the Pcell of this dominant base, and according to the cell index order of described bit map byte instruction, decode the PH information of the Scell of activity of ensuing described dominant base and Scell and PScell of the activity at described prothetic group station, wherein the PH information of the PScell at prothetic group station is transmitted situation according to the UL of PScell and is decoded; According to the ground of the cell index sequence order in the described bit map byte PH information of other small active areas of decoding.
According to a seventh aspect of the present invention, provide a kind of within a wireless communication network, UE is coordinated to the method reported of PH information in dominant base side, wherein dual link is set up at this UE and described dominant base and a prothetic group station, and described method comprises: the configuration information whether being configured to the virtual PH information always reporting non-scheduled base station to described prothetic group station notice about described UE; Notify that described dominant base and described prothetic group station have shared described configuration information to described UE.
According to an eighth aspect of the present invention, provide a kind of within a wireless communication network, notified the method for maximum transmit power (Pcmax) information of described UE by MACCE in UE side, wherein dual link is set up at this UE and dominant base and a prothetic group station, and described method comprises: in described MACCE, configure indication information whether comprise described Pcmax information to indicate described MACCE to scheduling base station.
According to a ninth aspect of the present invention, provide a kind of within a wireless communication network, notified and the maximum transmit power (Pcmax specific to carrier aggregation (CC) to scheduling base station by MACCE in UE side, the method of c) relevant information, wherein dual link is set up at this UE and dominant base and a prothetic group station, described method comprises: determine to use actual Pcmax according to wireless heterogeneous networks (RRC) configuration, c or virtual Pcmax, c calculate the virtual pH value of non-scheduled base station; And in described MACCE, configure indication information to use actual Pcmax, c or virtual Pcmax, c to scheduling base station instruction.
According to a tenth aspect of the present invention, provide a kind of within a wireless communication network, notified and the maximum transmit power (Pcmax specific to carrier aggregation (CC) to scheduling base station by MACCE in UE side, the method of c) relevant information, wherein dual link is set up at this UE and dominant base and a prothetic group station, described method comprises: according to standard definition, uses actual Pcmax, c to calculate the PH information of non-scheduled base station.
According to an eleventh aspect of the present invention, provide a kind of within a wireless communication network, notified and the maximum transmit power (Pcmax specific to carrier aggregation (CC) to scheduling base station by MACCE in UE side, the method of c) relevant information, wherein dual link is set up at this UE and dominant base and a prothetic group station, described method comprises: UE determines to use actual Pcmax, c or virtual Pcmax, c to calculate the virtual pH value of non-scheduled base station; And in described MACCE, configure indication information to use actual Pcmax, c or virtual Pcmax, c to scheduling base station instruction.
Utilize that the DCPHRMACCE form designed in the present invention makes the Class1 of scheduling base station and non-scheduled base station, 2PH information can be included in MACCE, and the identification of base stations/demultiplexing that is easily scheduled, and can not cause and obscure.
Accompanying drawing explanation
After the description below with reference to the specific embodiment of the present invention given by following accompanying drawing, the present invention will be understood better, and other objects of the present invention, details, feature and advantage will become more apparent.In the accompanying drawings:
Fig. 1 shows the schematic diagram of cordless communication network of the prior art;
Fig. 2 A and 2B shows the schematic diagram of the DCPHRMACCE structure according to first embodiment of the invention, corresponds respectively to the situation that scheduling base station is dominant base and prothetic group station;
Fig. 3 A and 3B shows the schematic diagram of the DCPHRMACCE structure according to second embodiment of the invention, corresponds respectively to the situation that scheduling base station is dominant base and prothetic group station; And
Fig. 4 A and 4B shows the schematic diagram of the DCPHRMACCE structure according to third embodiment of the invention, corresponds respectively to the situation that scheduling base station is dominant base and prothetic group station.
Wherein, in all of the figs, same or analogous label represents to have identical, similar or corresponding feature or function.
Embodiment
Below with reference to accompanying drawings preferred implementation of the present disclosure is described in more detail.Although show preferred implementation of the present disclosure in accompanying drawing, but should be appreciated that, the disclosure can be realized in a variety of manners and not should limit by the execution mode of setting forth here.On the contrary, provide these execution modes to be to make the disclosure more thorough and complete, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
Fig. 1 shows the schematic diagram of cordless communication network 100 of the prior art.As shown in fig. 1, cordless communication network 100 comprises a dominant base (MeNB) 110, it provides the basic network coverage 120, and one or more prothetic group station (SeNB) 132,134,136 and 138, it provides the relatively little network coverage 142,144,146 and 148 (marking with backslash in figure) respectively.The subscriber equipment (UE) 150 be in the common coverage at dominant base and prothetic group station can establish a communications link to dominant base 110 and corresponding prothetic group station (as prothetic group station 134) simultaneously.
Here, by a subscriber equipment (UE) with between a dominant base and one or more prothetic group station, there is situation about being connected simultaneously and be referred to as dual link.In the following description, for UE (as UE150) and the situation between a dominant base (as dominant base 110) and a prothetic group station (as prothetic group station 134) with dual link, each execution mode of the present invention is described.But, it will be understood by those skilled in the art that scheme described below is also applicable to have between a UE and dominant base and multiple prothetic group station the situation of dual link completely.
In DCPHRMACCE structural design of the present invention, the type 2PHR only considering to meet NS_eNB is always present in DCPHRMACCE to make it possible to ensure that scheduling base station (S_eNB) unambiguously can carry out this condition of demultiplexing to the DCPHRMACCE received by milli.And the MACCE using new Logic Channel Identifier (LCID) to identify into is DCPHRMACCE.Therefore key point is how to be placed in DCPHRMACCE by the pH value of Pcell or PScell of two base stations above-mentioned target can be realized.
Based on this, below suggested three kinds of different execution modes.
Fig. 2 A and 2B shows the schematic diagram of the DCPHRMACCE structure according to first embodiment of the invention, corresponds respectively to the situation that scheduling base station is dominant base and prothetic group station.For for purpose of brevity, in figure, illustrate only the payload portions of MACCE, and its packet header not shown because packet header and content relation of the present invention little.
The thought of this execution mode is, the Pcell (when non-scheduled base station is dominant base) of non-scheduled base station or the PH information of PScell (when non-scheduled base station is prothetic group station) are placed on the pre-position of MACCE, after bit map, then be each small active area another pH value according to its cell index, and do not consider that this community belongs to scheduling base station or non-scheduled base station.
According to RAN1 agreement, the main difference between the CAPHRMACCE of DCPHRMACCE and R11 expansion is that the type 2PH information of NS_eNB is always present in DCPHRMACCE.Therefore, if first S_eNB can determine and extract the PH information of Pcell or PScell of NS_eNB, then the PH information of other communities ensuing can easily be extracted.
Therefore, in the first embodiment, UE is when reporting PH information by MACCE, first it configure the bit map byte in MACCE.Here, each bit (except the rightest R bit) in known bits bitmap byte is corresponding with the cell index of the dominant base of dual link and each community at prothetic group station, and whether its bit value instruction respective cell is small active area.Such as, the bit value in bit map byte is the community that this bit of 1 instruction is corresponding is small active area, otherwise is non-small active area.But the present invention is not limited thereto, the concrete meaning representated by bit value can be set arbitrarily as required.
In fig. 2, suppose that C3 indicates the cell index of the PScell at prothetic group station.
In addition, for convenience of description, MACCE in Fig. 2 is divided into " bit map byte sections " (Part I), " non-scheduled base station PH message part " (Part II) and " other small active areas PH message part " (Part III), the division of this three part as shown in Figure 2.
When prothetic group station is non-scheduled base station, the bit of the PScell pointing to this prothetic group station in bit map is set to 0, that is, the bit value at C3 place is set to 0, as shown in Figure 2 A.
Otherwise, when prothetic group station is scheduling base station, the bit of the PScell pointing to this prothetic group station in bit map is set to 1, that is, the bit value at C3 place is set to 1, as shown in Figure 2 B.This indicates the pH value that there is the PScell at prothetic group station in " other small active areas PH message part " of this MACCE.
Next, the pre-position in MACCE configures the PH information of Pcell or PScell of non-scheduled base station.
In one implementation, this precalculated position can be the next byte (as shown in Figure 2A and 2B) and then after bit map byte.Or this precalculated position also can be the end byte of MACCE.It will be understood by those skilled in the art that the position of the PH information of Pcell or PScell of non-scheduled base station can be any precalculated position in MACCE, this position can be coordinated by UE and scheduling base station or prespecified by standard in advance.
Finally, other positions in MACCE, UE configures the PH information of other small active areas according to the cell index sequence order indicated in bit map byte.
Such as, UE can configure the PH information of other small active areas after the PH information of Pcell or PScell of non-scheduled base station, as shown in Figure 2A and 2B.
Here, the cell index of the Pcell of dominant base defaults to 0, therefore when dominant base is scheduling base station, before the PH information of the Pcell of dominant base is placed on the auxiliary community (Scell) of other activities in " other small active areas PH message part ".
According to this execution mode, if prothetic group station is non-scheduling base station, then " non-scheduled base station PH message part " comprises the PH information of the PScell at prothetic group station.Like this, the corresponding position of " other small active areas PH message part " of this MACCE does not have the PH information of the PScell at prothetic group station, because this information is placed on " non-scheduled base station PH message part ".
On the other hand, if prothetic group station is scheduling base station (namely dominant base is non-scheduling base station), then " non-scheduled base station PH message part " comprises the PH information of the Pcell of dominant base.At this moment, the pH value of the PScell at prothetic group station will be placed on the position of the correspondence identified by PScell index.As shown in Figure 2 B, now the pH value of the PScell at prothetic group station is placed on the position corresponding with cell index C3.
Can find out, in this implementation, no matter non-scheduled base station is dominant base or prothetic group station, always the bit pointing to the PScell at prothetic group station is set to 0 or 1, whether it is relevant that this does not transmit situation to the actual UL on PScell, but be that scheduling base station is relevant to prothetic group station.If prothetic group station is scheduling base station, then this bit is set to 1, otherwise if prothetic group station is non-scheduling base station, then this bit is set to 0.
This design can make to receive base station and be convenient to decode/demultiplexing to the DCPHRMACCE received.This is because, receive the base station necessarily scheduling base station of this DCPHRMACCE.If the base station therefore receiving DCPHRMACCE is prothetic group station, then prothetic group station is scheduling base station, and the bit so pointing to the PScell at prothetic group station in bit map byte is set to 1, and the information after bit map byte is the PH information of the Pcell of dominant base; And if the base station receiving DCPHRMACCE is dominant base, then prothetic group station is non-scheduling base station, and the bit so pointing to the PScell at prothetic group station in bit map byte is set to 0, and the information after bit map byte is the PH information of the PScell at prothetic group station.
According to the first execution mode, the PH information of non-scheduled base station will occupy 2,3 or 4 bytes, comprise: the type 2Pcmax of type 2PH value byte+possible, the Class1 Pcmax of c+ Class1 pH value byte+possible, c.Whether the Pcmax of type 2 and Class1, c exist by the V bit determination in the type 2 of correspondence or Class1 pH value byte.These are defined in 3GPPR11, therefore repeat no more here.
In the first embodiment, scheduling base station is as follows to its process of carrying out the corresponding PH information of demultiplexing/decode to obtain after receiving MACCE:
First, scheduling base station is decoded to the bit map byte in MACCE.
Next, scheduling base station knows that the pre-position in MACCE is the PH information of non-scheduling base station.More particularly, scheduling base station knows that the next byte of such as bit map byte is the type 2PH value byte of Pcell or PScell of non-scheduling base station, thus decodes to it.When decoding to type 2PH value byte, scheduling base station can according to whether present pattern 2Pcmax, the c of the V bit determination in type 2PH value byte.If present pattern 2Pcmax, c, then the next byte of type 2PH value byte is decoded as type 2Pcmax, c.
Next, the Class1 pH value byte of scheduling base station to Pcell or PScell of the non-scheduled base station in MACCE is decoded.When decoding to Class1 pH value byte, scheduling base station can according to whether present pattern 1Pcmax, the c of the V bit determination in Class1 pH value byte.If present pattern 1Pcmax, c, then using the next byte of Class1 pH value byte as Class1 Pcmax, c decodes.
After " bit map byte sections " and " non-scheduled base station PH message part " is decoded, scheduling base station is according to the order of the cell index sequence in bit map byte, other positions of decoding in MACCE successively, the PH information (and possible Pcmax, c) of other small active areas of scheduling base station and non-scheduled base station.
Can find out, in the first embodiment, reception base station is dominant base or prothetic group station is known.Therefore, the bit pointing to the PScell at prothetic group station in bit map byte is in fact all otiose for receiving the dominant base of this MACCE or prothetic group station, and it can be reused in other objects.
Fig. 3 A and 3B shows the schematic diagram of the DCPHRMACCE structure according to second embodiment of the invention, corresponds respectively to the situation that scheduling base station is dominant base and prothetic group station.Similar with Fig. 2, again illustrate only the payload portions of MACCE in Fig. 3, and its packet header not shown.
The thought of this execution mode is, no matter scheduling base station is dominant base or prothetic group station, all the PH information of the PScell at the Pcell of dominant base and prothetic group station is placed on the pre-position of MACCE, after bit map, then be other small active areas each another pH values according to its cell index sequence, and do not consider that it belongs to dominant base or prothetic group station.
For convenience of description, similarly the MACCE in Fig. 3 can be divided into " bit map byte sections " (Part I), " the PH message part of Pcell and PScell " (Part II) and " other small active areas PH message part " (Part III), the division of this three part as shown in Figure 3.
Can find out, different from the first execution mode shown in Fig. 2, the Part II of the MACCE in the second execution mode shown in Fig. 3 had both comprised the PH information of the Pcell of dominant base, comprised again the PH information of the PScell at prothetic group station.
In figure 3, suppose that C3 indicates the cell index of the PScell at prothetic group station similarly.
In this second embodiment, UE is when reporting PH information by MACCE, first it configure the bit map byte in MACCE.For this execution mode, always be present in the Part II of MACCE due to the PH information of the PScell at prothetic group station, the bit therefore pointing to PScell cell index in bit map byte is always set to 0, and no matter whether prothetic group station is scheduling base station.This correct behavior for guarantee scheduling base station is very important.
Next, after bit map byte, the PH information (Part II) of the pre-position configuration Pcell of dominant base and the PScell at prothetic group station in MACCE.
In one implementation, this precalculated position can be the next byte (as shown in Figure 3A and 3B) and then after bit map byte.Or this precalculated position also can be the end byte of MACCE.It will be understood by those skilled in the art that the position of the PH information of the Pcell of dominant base and the PScell at prothetic group station can be any precalculated position in MACCE, this position can be coordinated by UE and scheduling base station or prespecified by standard in advance.
Here, as shown in fig. 3, when scheduling base station is dominant base, the PH information of the Pcell of dominant base depends on that the UL of Pcell transmits situation and may occupy 1,2,3 or 4 bytes, comprise: the type 2Pcmax of possible type 2PH value byte+possible, the Class1 Pcmax of c+ Class1 pH value byte+possible, c, and the PH information of the PScell at prothetic group station comprises: the type 2Pcmax of type 2PH value byte+possible, the Class1 Pcmax of c+ Class1 pH value byte+possible, c, wherein must comprise type 2PH value byte.
As shown in Figure 3 B, when scheduling base station is prothetic group station, the PH information of the Pcell of dominant base may occupy 2,3 or 4 bytes, comprise: the type 2Pcmax of type 2PH value byte+possible, the Class1 Pcmax of c+ Class1 pH value byte+possible, c, wherein must comprise type 2PH value byte, and the PH information of the PScell at prothetic group station depends on that the UL of PScell transmits situation and comprises: the type 2Pcmax of possible type 2PH value byte+possible, the Class1 Pcmax of c+ Class1 pH value byte+possible, c.
Whether the Pcmax of type 2 and Class1, c exist by the V bit determination in the type 2 of correspondence or Class1 pH value byte.These are defined in 3GPPR11, therefore repeat no more here.
Here, with the PH information of the Pcell of dominant base front, the PH information of the PScell at prothetic group station is described the second execution mode rear, but the present invention is not limited thereto, and the two can arrange with random order.
Finally, UE other positions in MACCE are according to the PH information of other small active areas of arranged in order of the cell index sequence indicated in bit map byte.
Can find out, in this second embodiment, the bit of PScell the pointing to prothetic group station base station that is not scheduled uses, and it can be reused for other objects.The situation of this and above-mentioned first execution mode is similar, and difference is that the bit of the PScell pointing to prothetic group station in this second embodiment always should be set to 0, and in the first embodiment, this bit is set to 0 or 1 according to different situations.
In this second embodiment, scheduling base station is as follows to its process of carrying out the corresponding PH information of demultiplexing/decode to obtain after receiving MACCE:
First, scheduling base station is decoded to the bit map byte in MACCE.
Next, scheduling base station to the pre-position in described MACCE, the PH information of the Pcell of dominant base and the PScell at prothetic group station decodes.Here, what describe in the process of decode to the PH information of the Pcell of dominant base and the PScell at prothetic group station and the first execution mode is similar, therefore repeats no more here.
Here need to particularly point out, if scheduling base station is dominant base, then the PH information of the Pcell of dominant base is determined by the UL transmission situation of current dominant base.That is, whether type 2PH information is configured/transmits and determine by PUCCH on the Pcell of dominant base, but always comprises the type 2PH information at prothetic group station.
If scheduling base station is prothetic group station, then the Part II of MACCE certainly exists the type 2PH information of the Pcell of dominant base, and the type 2PH information at prothetic group station whether to exist be transmit situation by the current UL on the PScell at prothetic group station to determine.
After " bit map byte sections " and " non-scheduled base station PH message part " is decoded, scheduling base station according to the order of the cell index sequence in bit map byte, other positions of decoding in MACCE successively, the PH information (and possible Pcmax) of other small active areas of scheduling base station and non-scheduled base station.
Therefore can find out, even if for sending to the DCPHRMACCE at dominant base and prothetic group station (such as changed by path loss, P-MPR changes and any one activation in these three kinds of situations of SCell triggered) in same TTI, two DCPHRMACCE also will have different contents.This thought helps to ensure that correct prothetic group station or dominant base behavior, and does not need to be concerned about that it is scheduling base station or non-scheduled base station.
Fig. 4 A and 4B shows the schematic diagram of the DCPHRMACCE structure according to third embodiment of the invention, corresponds respectively to the situation that scheduling base station is dominant base and prothetic group station.
The thought of this execution mode is: the PH information of all communities is all placed according to the order of its cell index, and does not consider that it belongs to scheduling base station or non-scheduled base station.
In the diagram, suppose that C3 indicates the cell index of the PScell at prothetic group station similarly.
In the third embodiment, UE is when reporting PH information by MACCE, first it configure the bit map byte in MACCE.For this execution mode, the bit pointing to the PScell index at prothetic group station in bit map byte is always set to 1, because the PH information of the PScell at prothetic group station is always placed on the position indicated by the bit of its cell index of sensing.
In this embodiment, MACCE only can be divided into two parts, i.e. " bit map byte sections " (Part I) and " PH message part " (Part II), and this two-part division as shown in Figure 4.
After bit map byte, UE is according to the PH information of each small active area of arranged in order of cell index sequence, and no matter it belongs to scheduling base station or non-scheduled base station.
Specifically, the PH information of the Pcell of dominant base is always configured in the beginning of PH message part, because its cell index is 0, and the PH information of the PScell at prothetic group station is configured in the position pointing to its cell index, the PH information of other movable auxiliary communities (Scell) at dominant base and prothetic group station configures according to the order of the index of this community in bit map byte.
With similar in above-mentioned first and second execution modes, the bit of PScell pointing to prothetic group station still can remain for other purposes in advance, because dominant base and prothetic group station are very clearly for the Scell index information of PScell.Therefore dominant base or prothetic group station clearly can determine that the bit and not having of the PScell pointing to prothetic group station is anyly obscured, so this bit may be used for other objects.
In the third embodiment, scheduling base station is as follows to its process of carrying out the corresponding PH information of demultiplexing/decode to obtain after receiving MACCE:
First, scheduling base station is decoded to the bit map byte in MACCE.
Next, if scheduling base station is dominant base, then transmit situation according to the UL of the Pcell of this dominant base to decode the PH information of Pcell of this dominant base, and according to the cell index order indicated in bit map byte, the PH information of Scell and PScell of the Scell of the activity of ensuing dominant base of decoding and the activity at prothetic group station.
Here, the PH information of the Pcell of dominant base depends on that current PcellUL transmits situation and comprises: the type 2Pcmax of possible type 2PH value byte+possible, the Pcmax of c+ Class1 pH value byte+possible, c, this is because the type 2PH information of the Pcell of dominant base only configure on Pcell in the TTI of PUCCH in correspondence/transmission time exist.And for pointing to the PH information of PScell of SeNB, its content should comprise: the type 2Pcmax of type 2PH value byte+possible, the Class1 Pcmax of c+ Class1 pH value byte+possible, c, and no matter PScellUL transmission what state.
If scheduling base station is prothetic group station, then scheduling base station directly decodes the PH information of the Pcell of dominant base after decoded bits bitmap byte, and according to the cell index order of bit map byte instruction, decode the PH information of the Scell of activity of ensuing dominant base and Scell and PScell of the activity at prothetic group station, wherein the PH information of the PScell at prothetic group station is transmitted situation according to the UL of PScell and is decoded.
Here, the PH information of the Pcell of dominant base comprises the type 2Pcmax of type 2PH value byte+possible, the Pcmax of c+ Class1 pH value byte+possible, c, and no matter current the PcellUL of dominant base transmit what state.And for pointing to the PH information of PScell at prothetic group station, its content depends on that current PScellUL transmits situation and comprises: the type 2Pcmax of possible type 2PH value byte+possible, the Pcmax of c+ Class1 pH value byte+possible, c.That is, the type 2PH information of PScell whether exist by PUCCH whether configure on PScell in the TTI of correspondence/transmission determines.
What describe in the process of decoding to the PH information of the Pcell of dominant base and the PScell at prothetic group station in the third embodiment and the first and second execution modes is similar, therefore repeats no more here.
Can find out, above-mentioned three kinds of schemes ensure that dominant base and auxiliary correct behavior.For often kind of scheme, the DCPHRMACCE content of two base stations will be different, even if they produce and send in same TTI.
Further, in the discussion of above-mentioned RAN1 Email, following problem is also discussed:
Problem 1: when UE is not configured to the virtual PH always reporting the small active area belonging to another CG/eNB, whether the maximum transmit power (Pcmax) of UE should be incorporated in PHR.
Problem 2: actual Pcmax, whether c should be used for calculating virtual PH.
If do not consider this two problems, the DCPHRMACCE format design in the above-mentioned the first to the three execution mode is just enough.
If but consider this two problems, then DCPHRMACCE form can carry out changing to tackle this two problems further.
In order to solve the problem 1, need to consider following two subproblems:
Subproblem 1: whether Pcmax exists how to make scheduling base station know;
Subproblem 2: if Pcmax exists, how Pcmax is configured in DCPHRMACCE.
For subproblem 1, following two kinds of solutions are had at least to consider:
Scheme 1: implicit aspect.
In this scenario, whether dominant base is configured to the configuration information of the virtual PH always reporting non-scheduled base station about UE to prothetic group station notice; Then, to UE, dominant base notifies that this dominant base and prothetic group station have shared this configuration information.
So no matter scheduling base station is dominant base or prothetic group station, and whether UE need not exist by explicit instruction Pcmax.In scheduling base station side, automatically can know whether Pcmax exists.
For scheme 1, need to define the coordination process between MeNB and SeNB.Then to UE, MeNB notifies that this coordination completes information, can comprise Pcmax at MACCE and dispatch eNB freely always clearly knowing whether and comprising Pcmax to make UE.
Scheme 2: explicit aspect
In this scenario, UE indicates whether to comprise Pcmax to ensure correct scheduling base station behavior by MACCE is explicit, does not need the coordination process of the configuration information reported about virtual PH between dominant base and prothetic group station and does not also need to notify this coordination to UE.
In scheme 2, UE determines whether comprise Pcmax at MACCE according to relevant configuration.If so, then UE configures corresponding indication information whether to comprise Pcmax information to scheduling base station instruction MACCE in MACCE.In scheduling base station side, it can check when receiving this MACCE that this indication information is to determine whether to comprise Pcmax.
More specifically, UE can reuse the bit map byte in MACCE first, the right bit (R bit) or reuse point to prothetic group station the bit of PScell to configure this indication information.
First, the right bit (R bit) of bit map byte does not use in R11, and therefore it can be redefined to indicate whether to comprise Pcmax.
And as known in the above-mentioned description for the first to the three execution mode, in above-mentioned MACCE form, the bit pointing to the PScell at prothetic group station is in fact useless for receiving the scheduling base station of this MACCE, and no matter scheduling base station is dominant base or prothetic group station.And RAN2 has agreed to that the cell index of PScell is distributed by dominant base, and is forwarded to prothetic group station.That is, no matter scheduling base station is dominant base or prothetic group station, and it all knows the index information of PScell, and therefore it can determine which bit points to the PScell at prothetic group station exactly.Therefore the bit pointing to the PScell at prothetic group station can be redefined to indicate whether to comprise Pcmax information.The scheduling base station receiving MACCE clearly can determine whether to comprise Pcmax according to the bit of the PScell pointing to prothetic group station.
Further, for subproblem 2, the specific location in MACCE Pcmax information can be configured.
In one implementation, Pcmax information can be configured after the bit map byte in MACCE.That is, an extra byte can be comprised to place Pcmax information after bit map byte.
In another implementation, also can after the PH information of non-scheduled base station in MACCE, such as, at Class1 pH value byte or the Class1 Pcmax of non-scheduled base station, after c, configuration Pcmax information.Reason is that this byte is only relevant with the PHR process of non-scheduled base station, is feasible after therefore being closelyed follow the PH information of non-scheduled base station.
For the problems referred to above 2, following three kinds of schemes can be considered:
Scheme 1:UE determines to use reality or virtual Pcmax, c to calculate the virtual pH value of non-scheduled base station according to the configuration of wireless heterogeneous networks (RRC) signaling.
Scheme 2: define UE in a standard by 3GPP and use actual Pcmax, c to calculate the pH value of non-scheduled base station, and no matter this pH value is virtual or reality.
Scheme 3:UE freely determines to use virtual or actual Pcmax, c to calculate the virtual pH value of non-scheduled base station
Specifically, for scheme 2, scheduling base station can determine that UE uses actual Pcmax, c very much, and therefore scheduling base station can not produce and anyly to obscure.
And for scheme 1 and scheme 3, scheduling base station must be known and uses virtual and actual Pcmax in UE side, which in c calculates the virtual pH value of non-scheduled base station.Therefore, in this two schemes, UE needs to use virtual Pcmax, c or actual Pcmax, c to scheduling base station instruction.For this reason, UE can configure indication information to use virtual Pcmax, c or actual Pcmax, c to scheduling base station instruction in MACCE.
UE can use in MACCE bit to configure this indication information.
In one implementation, UE can use the F bit of the F/L byte in the sub-head of MACCE to configure this indication information.This is because for DCPHRMACCE, the length of its load can not more than 128 bytes, and the F bit therefore in F/L byte is not in fact used in scheduling.Therefore this bit can be redefined to indicate whether to scheduling base station to employ actual Pcmax, c.The structure of the sub-head of MACCE specifies in R11, therefore repeats no more here.
In another implementation, the R bit of the bit map byte in MACCE load can be redefined to configure this indication information.
In another realizes, the bit of the PScell pointing to prothetic group station in bit map byte can be redefined to configure this indication information.As mentioned above, the bit pointing to the PScell at prothetic group station in the bit map byte base station that can not be scheduled uses, and therefore this bit may be used for this instruction.
Like this, even if the V bit in pH value byte is 1, scheduling base station also knows the Pcmax being followed by reality, c byte.These are different from R11 rule, in R11, only have during V=0 and just have Pcmax thereafter, c byte.
Here, with reference to accompanying drawing, method disclosed herein is described.But be to be understood that, shown in accompanying drawing and described in specification sequence of steps is only schematic, without departing from the scope of the claims, these method steps and/or action can perform according to different orders and the concrete order that be not limited to described in shown in accompanying drawing and specification.
In one or more exemplary design, the function that can realize described in the application by hardware, software, firmware or their combination in any.If realized with software, then can using described function as one or more instruction or code storage on a computer-readable medium, or transmit as the one or more instruction on computer-readable medium or code.Computer-readable medium comprises computer-readable storage medium and communication media, and wherein communication media comprises and contributes to computer program is delivered to another place arbitrary medium from a place.Storage medium can be the addressable any usable medium of universal or special computer.This computer-readable medium can comprise, such as but not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disc memory apparatus, disk storage device or other magnetic storage apparatus, or can be used for other medium any carrying or store the code modules of hope with the form of universal or special computer or the addressable instruction of universal or special processor or data structure.Further, any connection also can be known as computer-readable medium.Such as, if software be use coaxial cable, optical fiber cable, twisted-pair feeder, the wireless technology of Digital Subscriber Line (DSL) or such as infrared ray, radio and microwave and so on is come from website, server or other remote source, so the wireless technology of coaxial cable, optical fiber cable, twisted-pair feeder, DSL or such as infrared ray, radio and microwave and so on is also included within the definition of medium.
Can realize by general processor, digital signal processor (DSP), application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components or the combination in any for performing function as herein described or perform in conjunction with various exemplary logical block, module and the circuit described by the disclosure.General processor can be microprocessor, or processor also can be the processor of any routine, controller, microcontroller or state machine.Processor also can be implemented as the combination of computing equipment, such as, and the combination of the combination of DSP and microprocessor, multi-microprocessor, one or more microprocessor and DSP kernel, or other this kind of structure any.
Those of ordinary skill in the art it is also understood that various exemplary logical block, module, circuit and algorithm steps that the embodiment in conjunction with the application describes can be embodied as electronic hardware, computer software or the combination of the two.In order to clearly represent this interchangeability between hardware and software, all around its function, general description is carried out to various exemplary parts, block, module, circuit and step above.Be embodied as hardware as this function or be embodied as software, the design constraint depending on specific application and apply over the whole system.Those skilled in the art for often kind of application-specific, can realize described function in the mode of accommodation, but, thisly realize decision-making and should not be construed as and deviate from protection scope of the present invention.
Above description of the present disclosure is for enabling any those of ordinary skill of this area realize or use the present invention.To those skilled in the art, various amendment of the present disclosure is all apparent, and general principle defined herein also can be applied to other distortion when not departing from spirit of the present invention and protection range.Therefore, the present invention is not limited to example as herein described and design, but consistent with the widest scope of principle disclosed herein and novel features.
Claims (20)
1. one kind within a wireless communication network, controlled the method for (MAC) control element (CE) reporting power margin (PH) information by media interviews in subscriber equipment (UE) side, wherein dual link is set up at this UE and dominant base and a prothetic group station, and described method comprises:
Configure the bit map byte in described MACCE;
The main plot (Pcell) of non-scheduled base station of the pre-position configuration dual link in described MACCE or the PH information of special auxiliary community (PScell);
Other positions in described MACCE, configure the PH information of other small active areas according to cell index sequence order.
2. the method for claim 1, wherein when described prothetic group station is non-scheduling base station, the bit of the PScell pointing to this prothetic group station in bit map byte is set to 0, and the PH information of Pcell or PScell of wherein said non-scheduled base station comprises the PH information of the PScell at described prothetic group station.
3. the method for claim 1, wherein when described prothetic group station is scheduling base station, the bit of the PScell pointing to this prothetic group station in bit map byte is set to 1, and the PH information of Pcell or PScell of wherein said non-scheduled base station comprises the PH information of the Pcell of described dominant base.
4. one kind within a wireless communication network, controlled the method for (MAC) control element (CE) received power surplus (PH) information by media interviews in scheduling base station side, wherein subscriber equipment (UE) sets up dual link with a dominant base and a prothetic group station, and described method comprises:
To decode the bit map byte of described MACCE;
The type 2PH value byte of the pre-position of decoding in described MACCE, non-scheduled base station and Class1 pH value byte;
According to cell index sequence order decode in described MACCE other positions, the PH information of other small active areas of scheduling base station and non-scheduled base station.
5. method as claimed in claim 4, wherein:
Coding type 2PH value byte also comprises: according to whether present pattern 2Pcmax, the c of the V bit determination in type 2PH value byte, and described method also comprises:
As present pattern 2Pcmax, during c, the next byte of type 2PH value byte is decoded as type 2Pcmax, c.
6. method as claimed in claim 5, wherein:
Coding type 1PH value byte also comprises: according to whether present pattern 1Pcmax, the c of the V bit determination in Class1 pH value byte, and described method also comprises:
As present pattern 1Pcmax, during c, using the next byte of Class1 pH value byte as Class1 Pcmax, c decodes.
7. one kind within a wireless communication network, controlled the method for (MAC) control element (CE) reporting power margin (PH) information by media interviews in subscriber equipment (UE) side, wherein dual link is set up at this UE and dominant base and a prothetic group station, and described method comprises:
Bit map byte in configuration MACCE, the bit wherein pointing to the special auxiliary community (PScell) at prothetic group station in bit map byte is set to 0;
Pre-position in described MACCE configures the PH information of the main plot (Pcell) of described dominant base and the PScell at described prothetic group station;
Other positions in described MACCE, configure the PH information of other small active areas according to cell index sequence order.
8. one kind within a wireless communication network, controlled the method for (MAC) control element (CE) received power surplus (PH) information by media interviews in scheduling base station side, wherein subscriber equipment (UE) sets up dual link with a dominant base and a prothetic group station, and described method comprises:
To decode the bit map byte of described MACCE;
The PH information of the main plot (Pcell) of the pre-position of decoding in described MACCE, described dominant base and the special auxiliary community (PScell) at described prothetic group station;
According to the cell index sequence order in described bit map byte decode in described MACCE other positions, the PH information of other small active areas.
9. one kind within a wireless communication network, controlled the method for (MAC) control element (CE) reporting power margin (PH) information by media interviews in subscriber equipment (UE) side, wherein dual link is set up at this UE and dominant base and a prothetic group station, and described method comprises:
Configure the bit map byte in described MACCE, the bit wherein pointing to the special auxiliary community (PScell) at prothetic group station in this bit map byte is set to 1;
After described bit map byte, configure the PH information of the main plot (Pcell) of described dominant base;
After the PH information of the Pcell of described dominant base, configure the Scell of the auxiliary community (Scell) of the activity of described dominant base and the activity at described prothetic group station and the PH information of special auxiliary community (PScell) according to cell index sequence order.
10. one kind within a wireless communication network, controlled the method for (MAC) control element (CE) received power surplus (PH) information by media interviews in scheduling base station side, wherein subscriber equipment (UE) sets up dual link with a dominant base and a prothetic group station, and described method comprises:
To decode the bit map byte of described MACCE;
If described scheduling base station is dominant base, then to decode according to up (UL) situation of transmission of the Pcell of this dominant base the PH information of Pcell of this dominant base, and according to the cell index order of described bit map byte instruction, the Scell of the auxiliary community (Scell) of the activity of ensuing described dominant base of decoding and the activity at described prothetic group station and the PH information of special auxiliary community (PScell);
If described scheduling base station is prothetic group station, after the described bit map byte of decoding, then directly decode the PH information of the Pcell of this dominant base, and according to the cell index order of described bit map byte instruction, decode the auxiliary community (Scell) of activity of ensuing described dominant base and the Scell of the activity at described prothetic group station and the PH information of special auxiliary community (PScell), wherein the PH information of the PScell at prothetic group station is transmitted situation according to the UL of PScell and is decoded.
11. 1 kinds within a wireless communication network, the method reported in dominant base side coordinates user equipment (UE) to power headroom (PH) information, wherein dual link is set up at this UE and described dominant base and a prothetic group station, and described method comprises:
Whether be configured to the configuration information of the virtual PH information always reporting non-scheduled base station about described UE to described prothetic group station notice;
Notify that described dominant base and described prothetic group station have shared described configuration information to described UE.
12. 1 kinds within a wireless communication network, control by media interviews the method that (MAC) control element (CE) notifies maximum transmit power (Pcmax) information of described UE in subscriber equipment (UE) side, wherein dual link is set up at this UE and dominant base and a prothetic group station, and described method comprises:
In described MACCE, configure indication information whether comprise described Pcrmax information to indicate described MACCE to scheduling base station.
13. methods as claimed in claim 12, wherein configure described indication information by the bit of the R bit of reusing in the bit map byte in described MACCE or the special auxiliary community (PScell) of pointing to described prothetic group station.
14. methods as described in claim 12 or 13, also comprise:
Specific location in described MACCE configures described Pcmax information.
15. methods as claimed in claim 14, configure described Pcmax information after the Class1 pH value byte in the PH information of the non-scheduled base station after the bit map byte wherein in described MACCE or in described MACCE or Class1 Pcmax, c byte.
16. 1 kinds within a wireless communication network, (MAC) control element (CE) is controlled to scheduling base station notice and the maximum transmit power (Pcmax specific to carrier aggregation (CC) by media interviews in subscriber equipment (UE) side, the method of c) relevant information, wherein dual link is set up at this UE and dominant base and a prothetic group station, and described method comprises:
Determine to use actual Pcmax, c or virtual Pcmax, c to calculate the virtual pH value of non-scheduled base station according to wireless heterogeneous networks (RRC) configuration; And
Indication information is configured to use actual Pcmax, c or virtual Pcmax, c to scheduling base station instruction in described MACCE.
17. methods as described in claim 16, wherein in the following manner in any one configure described indication information: the F bit using the F/L byte in the sub-head of described MACCE, or redefine the R bit of the bit map byte in MACCE load, or redefine the bit of the PScell pointing to prothetic group station in bit map byte.
18. 1 kinds within a wireless communication network, (MAC) control element (CE) is controlled to scheduling base station notice and the maximum transmit power (Pcmax specific to carrier aggregation (CC) by media interviews in subscriber equipment (UE) side, the method of c) relevant information, wherein dual link is set up at this UE and dominant base and a prothetic group station, and described method comprises:
According to standard definition, actual Pcmax, c is used to calculate the PH information of non-scheduled base station.
19. 1 kinds within a wireless communication network, (MAC) control element (CE) is controlled to scheduling base station notice and the maximum transmit power (Pcmax specific to carrier aggregation (CC) by media interviews in subscriber equipment (UE) side, the method of c) relevant information, wherein dual link is set up at this UE and dominant base and a prothetic group station, and described method comprises:
UE determines to use actual Pcmax, c or virtual Pcmax, c to calculate the virtual pH value of non-scheduled base station; And
Indication information is configured to use actual Pcmax, c or virtual Pcmax, c to scheduling base station instruction in described MACCE.
20. methods as claimed in claim 19, wherein in the following manner in any one configure described indication information: the F bit using the F/L byte in the sub-head of described MACCE, or redefine the R bit of the bit map byte in MACCE load, or redefine the bit pointing to the PScell at prothetic group station in described bit map byte.
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