WO2014085984A1 - Method, base station, user equipment and system for parsing extended power headroom report - Google Patents

Abstract

Embodiments of the present invention relate to the communications field. Provided are a method, a base station, a user equipment (UE) and a system for parsing an extended power headroom report (PHR). The method comprises: receiving a media access control (MAC) packet data unit (PDU) sent by a UE, wherein a MAC sub-head of the MAC PDU comprises a reserved bit R, an extended bit E and a logic channel identifier (LCID); and obtaining the LCID in the MAC sub-head, obtaining a media control element (MCE) corresponding to the MAC sub-head according to the LCID, and parsing the extended PHR in the MCE. The base station comprises a receiving module, an obtaining module and a parsing module. The UE comprises a setting module and a sending module. The system comprises a base station and a UE. The present invention can prevent a problem of a resource waste caused by L field setting in the MAC sub-head; in addition, parsing correctness does not need to be judged according to the L field, which reduces complexity in parsing the extended PHR.

Description

 Method, base station, user equipment and system for analyzing extended power headroom reporting

 The present invention relates to the field of communications, and in particular, to a method for parsing an extended power headroom report, a base station user equipment, and a system. Background technique

 The LTE-A (Long Term Evolution-Advanced) system introduces a carrier aggregation (CA) technology to enable UEs (User Equipments) to work simultaneously on multiple cells (Cells). Wherein, one cell includes a pair of uplink/downlink CCs (Component Carriers). In order to make the LTE-A system compatible with the LTE (Long Term Evolution) system, it is generally considered that the UE can work in up to five cells at the same time, that is, the CC is at most 5 pairs, and the uplink CC is at most 5.

 After the UE enters the network, the UE performs a difference calculation according to the maximum supported transmit power of the uplink user and the transmit power of the current uplink user, generates an extended PHR (Power Headroom Report) according to the difference, and adds the extended PHR. E-UTRAN (Evolved Universal Mobile Telecommunications System Terrestrial Radio Access Network) is sent to the MCE (Media Control Element) of the MAC (Media Access Control) PDU (Packet Data Unit). The evolved universal mobile communication system terrestrial radio access network) reports the power headroom of each CC of the UE to the E-UTRAN, so that the E-UTRAN determines the next uplink transmit power according to the power headroom to ensure the maximum power. Use without exceeding the maximum transmit power of the user.

 In the prior art, the length of the MCE is variable. Therefore, the L field needs to be set in the MAC header corresponding to the MCE to indicate the length of the MCE. Correspondingly, when the MAC sub-header is parsed, the length indication L field of the MCE corresponding to the MAC sub-header is obtained. When the extended PHR in the MCE corresponding to the MAC sub-header is parsed, the obtained length indication and the extended PHR obtained after parsing are obtained. The length of the content is compared. If the lengths are the same, the resolution is correct. If the lengths are different, the E-UTRAN performs fault tolerance or discarding on them.

In the prior art, the L field in the MAC subheader occupies multiple bits, which wastes resources; The prior art also needs to judge whether the parsing is correct according to the L field, and increases the complexity of parsing the extended PHR. Summary of the invention

 Embodiments of the present invention provide a method, a base station, a user equipment, and a system for parsing an extended power headroom report to save resources and reduce the complexity of parsing an extended PHR. The technical solution is as follows: In a first aspect, a method for parsing an extended power headroom report is provided, where the method includes: receiving a media access control MAC packet data unit PDU sent by a user equipment UE, a MAC of the MAC PDU The subheader includes a reserved bit R, an extended bit E, and a logical channel identifier LCID;

 Obtaining the LCID in the MAC subheader;

 Acquiring the media control element MCE corresponding to the MAC sub-head according to the LCID, and parsing the extended power margin report PHR in the MCE.

 In the first possible implementation manner of the first aspect, the PHR is reported to the extended power headroom in the MCE, where:

 Reading an index of a component carrier CC in the extended PHR;

 Determining, according to the index, whether the CC is reported to the PHR;

 If yes, parsing the PHR corresponding to the certain CC in the extended PHR. With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the foregoing aspect, the parsing the PHR corresponding to the certain CC in the extended PHR includes:

 Reading a flag bit of a maximum transmit power in the PHR corresponding to the certain CC in the extended PHR;

 Determining, according to the flag bit, whether the certain CC reports the maximum transmit power;

 If so, the maximum transmit power is read.

 With reference to the first possible implementation manner of the first aspect, in a third possible implementation manner of the foregoing aspect, the parsing the PHR corresponding to the certain CC in the extended PHR includes:

 Reading a power headroom PH in the PHR corresponding to the certain CC in the extended PHR. In a fourth possible implementation manner of the foregoing aspect, the method further includes:

If the MAC PDU includes a MAC Service Data Unit (SDU), according to the extended PHR The index of all the CCs in the index and the flag of the maximum transmit power in the PHR corresponding to all the CCs in the extended PHR are calculated, and the MAC SDU is read according to the length.

 In a second aspect, a method for parsing an extended power headroom report is provided, the method comprising: adding an extended power headroom to a PHR in a media control element MCE corresponding to a MAC subheader of a medium access control MAC packet data unit PDU And setting, according to the MCE, a logical channel identifier LCID in the MAC sub-head corresponding to the MCE, where the MAC sub-head includes a reserved bit R, an extended bit E, and the LCID;

 Transmitting the MAC PDU to a base station for parsing by the base station according to the extended PHR in the MAC PDU.

 In a third aspect, a base station is provided, where the base station includes:

 a receiving module, configured to receive a media access control MAC packet data unit PDU sent by the user equipment UE, where the MAC sub-head of the MAC PDU includes a reserved bit R, an extended bit E, and a logical channel identifier LCID;

 An obtaining module, configured to acquire the LCID in the MAC subheader;

 And a parsing module, configured to acquire, according to the LCID, a media control element MCE corresponding to the MAC subheader, and parse the PHR on the extended power margin in the MCE.

 In a first possible implementation manner of the third aspect, the parsing module includes:

 a reading unit, configured to read an index of a component carrier CC in the extended PHR, and a determining unit, configured to determine, according to the index, whether the CC is reported to the PHR;

 The parsing unit is configured to parse the PHR corresponding to the certain CC in the extended PHR, if the determining unit determines that the PHR is reported by the certain CC.

 With reference to the first possible implementation of the third aspect, in a second possible implementation manner of the third aspect, the parsing unit is configured to read the corresponding one of the CCs in the extended PHR a flag of a maximum transmit power in the PHR; determining, according to the flag bit, whether the certain CC reports the maximum transmit power; and if so, reading the maximum transmit power.

 In conjunction with the first possible implementation of the third aspect, in a third possible implementation manner of the third aspect, the parsing unit is further configured to read, in the extended PHR, the corresponding location of the CC The power headroom PH in the PHR.

 In a fourth possible implementation manner of the third aspect, the base station further includes:

a reading module, configured to: if the MAC PDU includes a MAC service data unit SDU, Calculating the length of the MAC SDU according to the index of all CCs in the extended PHR and the flag of the maximum transmit power in the PHR corresponding to all the CCs in the extended PHR, and reading the MAC SDU according to the length.

 In a fourth aspect, a base station is provided, where the base station includes:

 a receiver, configured to receive a media access control MAC packet data unit PDU sent by the user equipment UE, where the MAC sub-head of the MAC PDU includes a reserved bit R, an extended bit E, and a logical channel identifier LCID;

 a processor, configured to acquire the LCID in the MAC sub-header, acquire a media control element MCE corresponding to the MAC sub-head according to the LCID, and parse the extended power margin in the MCE .

 In a first possible implementation manner of the fourth aspect, the processor is further configured to: read an index of a component carrier CC in the extended PHR; and determine, according to the index, whether the certain CC reports a PHR And if it is determined that the PHR is reported by the certain CC, parsing the PHR corresponding to the certain CC in the extended PHR.

 With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the processor is further configured to read, in the extended PHR, the corresponding location of the CC Determining a flag of a maximum transmit power in the PHR; determining, according to the flag bit, whether the certain CC reports the maximum transmit power; if yes, reading the maximum transmit power.

 With reference to the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the processor is further configured to read, in the extended PHR, a location corresponding to the CC The power headroom PH in the PHR.

 In a fourth possible implementation manner of the fourth aspect, the processor is further configured to: if the MAC PDU includes a MAC service data unit SDU, according to an index of all CCs in the extended PHR and the extended PHR The flag bit of the maximum transmit power in the PHR corresponding to all the CCs is calculated, and the length of the MAC SDU is calculated, and the MAC SDU is read according to the length.

 A fifth aspect provides a user equipment UE, where the UE includes:

 a setting module, configured to add an extended power headroom report PHR to the media control element MCE corresponding to the MAC sub-header of the media access control MAC packet data unit PDU, and set the MAC sub-head corresponding to the MCE according to the MCE a logical channel identifier LCID, the MAC subheader includes a reserved bit R, an extended bit E, and the LCID;

a sending module, configured to send the MAC PDU to a base station, so that the base station is configured according to the MAC The LCID in the MAC sub-header of the PDU acquires the MCE corresponding to the MAC sub-header and parses the extended PHR in the MCE.

 A sixth aspect provides a user equipment UE, where the UE includes:

 a processor, configured to add an extended power headroom report PHR to the media control element MCE corresponding to the MAC sub-header of the medium access control MAC packet data unit PDU, and set the MAC sub-head corresponding to the MCE according to the MCE a logical channel identifier LCID, the MAC subheader includes a reserved bit R, an extended bit E, and the LCID;

 a transmitter, configured to send the MAC PDU to a base station, so that the base station acquires the MCE corresponding to the MAC sub-head according to the LCID in the MAC sub-header of the MAC PDU, and is in the MCE The extended PHR is parsed.

 In a seventh aspect, a system for parsing an extended power headroom report is provided, the system comprising: a base station as described above and a user equipment UE as described above.

 The beneficial effects of the technical solutions provided by the embodiments of the present invention are:

 Receiving a MAC PDU sent by the UE, the MAC sub-header of the MAC PDU includes the R, E, and the LCID; acquiring the LCID in the MAC sub-header; acquiring the MCE corresponding to the MAC sub-head according to the LCID, The extended PHR in the MCE is parsed to avoid the problem that the L field is wasted in the MAC subheader. In addition, it is not necessary to judge whether the parsing is correct according to the L field, and the complexity of parsing the extended PHR is reduced. DRAWINGS

 In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

 1 is a flowchart of a method for parsing an extended power headroom report according to Embodiment 1 of the present invention; FIG. 2 is a schematic structural diagram of a MAC PDU according to Embodiment 1 of the present invention;

 3 is a schematic structural diagram of a MAC subheader according to Embodiment 1 of the present invention;

 4 is a flowchart of a method for parsing an extended power headroom report according to Embodiment 1 of the present invention; FIG. 5 is a flowchart of a method for parsing an extended power headroom report according to Embodiment 2 of the present invention; A schematic diagram of the structure of the extended PHR provided;

7 is a schematic structural diagram of a base station according to Embodiment 3 of the present invention; 8 is another schematic structural diagram of a base station according to Embodiment 3 of the present invention;

 9 is a schematic structural diagram of a base station according to Embodiment 4 of the present invention;

 FIG. 10 is a schematic structural diagram of a user equipment according to Embodiment 5 of the present invention; FIG.

 11 is a schematic structural diagram of a user equipment according to Embodiment 6 of the present invention;

 FIG. 12 is a schematic structural diagram of a system for analyzing extended power headroom reporting according to Embodiment 7 of the present invention. detailed description

 The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

 Embodiment 1

 This embodiment provides a method for parsing an extended power headroom report, which simplifies the process of extending the PHR by omitting the original length L field in the MAC subheader. Referring to Figure 1, the method flow includes:

 101: Receive a MAC PDU sent by the UE, where the MAC sub-header of the MAC PDU includes a reserved bit R, an extended bit E, and an LCID (Logical Channel Identity).

 Referring to the structure diagram of the MAC PDU shown in FIG. 2, the MAC PDU includes a MAC header, a MAC SDU (Service Data Unit), an MCE, and a padding (Padding). A MAC header consists of one or more MAC subheaders, each of which corresponds to a MAC SDU or MCE or padding bit. The lengths of the MAC header and the MAC SDU are variable. In the MAC PDU, the MCE is at the forefront, followed by the MAC SDU, and finally the padding bit, and the order of the corresponding subheaders of the MCE, MAC SDU, and padding bits in the MAC header is the same as the order in the MAC PDU.

 Referring to the schematic diagram of the structure of the MAC subheader shown in FIG. 3, in this embodiment, the MAC subheader is composed of R, R, E, and LCID, where R is a reserved bit; E is an extended bit, used to indicate The next byte is the MAC subheader or the MAC payload; the LCID is used to identify the logical channel number of the payload corresponding to the MAC subheader.

 102: Get the LCID in the MAC subheader.

 103: Obtain an MCE corresponding to the MAC sub-head according to the LCID, and parse the extended PHR in the MCE.

In the LTE-A system, the PH (Power Headroom) is for the Physical Uplink Shared Channel (PUSCH), specifically: PH=P _cmax -P _PUSCH , In , ? . The dish is 1^ the maximum transmission power in the case of meeting the radio frequency index, and the P _PUSCH is the transmission power of the UE.

 The parsing of the extended PHR in the MCE may include:

 Reading an index of a CC in the extended PHR;

 Determining whether the CC is reported to the PHR according to the index;

 If yes, parse the PHR corresponding to the certain CC in the extended PHR.

 The parsing of the PHR corresponding to the certain CC in the extended PHR may include: reading a flag of a maximum transmit power of the PHR corresponding to the certain CC in the extended PHR; determining whether the certain CC is reported the largest according to the flag bit. Transmit power

 If yes, read the maximum transmit power.

 The parsing of the PHR corresponding to the certain CC in the extended PHR may include: reading the PH in the PHR corresponding to the certain CC in the extended PHR.

 The above method may further include:

 If the MAC PDU includes a MAC SDU, the length of the MAC SDU is calculated according to the index of all CCs in the extended PHR and the flag of the maximum transmit power in the PHR corresponding to all CCs in the extended PHR, and the MAC SDIL is read according to the length.

 This embodiment further provides a method for parsing an extended power headroom report. Referring to FIG. 4, the method process includes:

 401: Add an extended PHR to the MCE corresponding to the MAC sub-header of the MAC PDU, and set an LCID in the MAC sub-head corresponding to the MCE according to the MCE, where the MAC sub-head includes a reserved bit R, an extended bit E, and an LCID.

 402: Send a MAC PDU to the base station, so that the base station acquires the MCE corresponding to the MAC sub-head according to the LCID in the MAC sub-header of the MAC PDU, and parses the extended PHR in the MCE.

 The foregoing method provided in this embodiment, by receiving a MAC PDU sent by the UE, the MAC sub-header of the MAC PDU includes R, E, and LCID; acquiring the LCID in the MAC sub-header; acquiring the MCE corresponding to the MAC sub-head according to the LCID, The extended PHR in the MCE is parsed, which avoids the problem of setting the L field waste resource in the MAC subheader. In addition, it is not necessary to judge whether the parsing is correct according to the L field, and the complexity of parsing the extended PHR is reduced.

In addition, if the MAC PDU includes the MAC SDU, the length of the MAC SDU is calculated according to the index of all the CCs in the extended PHR and the flag of the maximum transmit power in the PHR corresponding to all CCs in the extended PHR, and the MAC SDU is read according to the length, without Calculate the length according to the L field, so that To avoid the problem of setting the L field waste resource in the MAC subheader. Embodiment 2

 This embodiment provides a method for parsing an extended power headroom report. Referring to FIG. 5, the method flow provided in this embodiment includes:

 501: The UE adds an extended PHR to the MCE corresponding to the MAC sub-header of the MAC PDU, and sets an LCID in the MAC sub-head corresponding to the MCE according to the MCE, where the MAC sub-head includes a reserved bit R, an extended bit E, and an LCID. .

 The structure of the MAC PDU is as shown in FIG. 2, and the structure of the MAC sub-header is as shown in FIG. 3. For a detailed description of the structure shown in FIG. 2 and FIG. 3, refer to the related description of step 101 in the first embodiment, where Let me repeat.

 Further, it can be seen from the structure diagram of the MAC PDU shown in FIG. 2 that each MAC subheader corresponds to one MCE or MAC SDU or padding bit. In this embodiment, a MAC sub-header is used as an example for the MCE. The UE may set the MAC sub-header, and the MAC sub-header includes a reserved bit R, an extended bit E, and an LCID. Specifically, the UE adds the LCID of the logical channel where the MCE corresponding to the MAC sub-header is located in each MAC sub-header, so that the base station acquires the MCE corresponding to the MAC sub-head according to the LCID.

 502: The UE sends a MAC PDU to the base station.

 503: The base station receives a MAC PDU sent by the UE, where the MAC sub-header of the MAC PDU includes a reserved bit R, an extended bit E, and an LCID.

 504: The base station acquires an LCID in the MAC subheader.

 After receiving the MAC PDU sent by the UE, the base station obtains the LCID in the MAC sub-header by parsing the MAC sub-header, and clarifies the logical channel where the MCE corresponding to the MAC sub-header is located according to the LCID in each MAC sub-header. Obtaining an MCE corresponding to the MAC sub-header from the logical channel.

 505: The base station acquires the MCE corresponding to the MAC sub-head according to the LCID, and parses the extended PHR in the MCE.

 In this embodiment, after the base station acquires the MCE on the logical channel identified by the LCID, the base station can parse the extended PHR in the MCE.

Referring to the structure diagram of the extended PHR shown in FIG. 6, the parameters included in the extended PHR are as follows: R: Reserved bits, set to 0, occupy one bit; Q: an index of the CC labeled i, occupying one bit;

 Further, the LTE-A system divides the cell into a primary cell and a secondary cell, and there is only one primary cell in the cell aggregated by the UE. A PUCCH (Physical Uplink Control Channel) is configured on the CC of the primary cell, and no PUCCH exists on the CC of the other secondary cell.

 Correspondingly, two types of PHs included in the PHR are defined for the primary cell:

Type 1: PH _PUSCH = P cmax - PpUSCH;

Type 2: PH _PUSCH = P cmax - PpUSCH-PpUCCH;

For the secondary cell, since there is no PUCCH, one type of PH included in the PHR is defined: Type 1: PH _PUSCH = P cmax - PpUSCH.

For the sake of distinction, G can be specifically defined as the C _r type to clarify the type of ^.

The following describes the implementation process of the embodiment of the present invention by taking the case where the number of CCs is up to five. The value of i is [0, 5]. In this embodiment, to identify a class C _r corresponding to the reported PHR, Ci- to 0 to identify the type not corresponding to the Gen 4 PHR.

 P: the flag of the power backoff, occupying one bit;

V: a flag of the maximum transmit power P _cmax , occupying one bit;

In this embodiment, the PHR is identified by 0 to include P _cmax , and 1 is used to identify that the PHR does not include P _cmax .

PH: power headroom, occupying six bits;

 In this embodiment, the PH may be specifically PH (type, cell;) to identify which CC the PH corresponds to.

P _cmax : maximum transmit power, occupying six bits;

In this embodiment, P _cmax may be specifically P _cmax , _Cl -« to identify which cc the P _cmax corresponds to.

For convenience of description, in this embodiment, all parameters reported by a certain CC are referred to as PHRs corresponding to the certain CC, and PHR includes PH, V, P, and P _cma ^ R parameters, and the extended PHR includes multiple CCs and multiple parameters. PHR, and each PHR corresponds to one CC.

 Specifically, parsing the extended PHR in the MCE may include:

 Reading an index of a CC in the extended PHR;

 Determining whether the CC is reported to the PHR according to the index;

 If yes, parse the PHR corresponding to the certain CC in the extended PHR.

The base station reads the extended PHR in order from the lower to the upper and from the top to the bottom. Taking the structure diagram of the extended PHR shown in FIG. 6 as an example for description, the base station first reads the first row of data, and the order of reading the first row of data from the lower bit to the upper bit is: R, R, C _ri , d_ ₂ , C ₂₄ , C ₃₄ , C ₄₄ and C ₅ 4 , when the first line of data reading is completed, the base station reads the second line of data downward, and the reading order of the second line of data from the lower order to the upper position is: PH (1, primary cell), V and P. When the second row of data is read, the base station reads the third row of data downward, and the order of reading the third row of data from the lower to the upper is: P _cmax , ci -i, R and R, and so on, until the base station reads the MCE. When reading the d-Λ type, if the value of a certain C _r type read is 1, then after reading all the C _r types, read the PHR corresponding to a certain C _r type; if reading If the value of a certain C _r type is 0, after reading all the d-types, the C _r «corresponding PHR of the value 1 after a certain C _re is read.

 In this embodiment, parsing the PHR corresponding to a CC in the extended PHR may include: reading the PH in the PHR corresponding to a CC in the extended PHR.

 Further, the parsing of the PHR corresponding to a certain CC in the extended PHR may include: reading a flag of a maximum transmit power in a PHR corresponding to a CC in the extended PHR; determining whether the certain CC reports the maximum transmission according to the flag bit. Power

 If yes, read the maximum transmit power.

In this embodiment, when reading a certain C _r «corresponding PHR, if the value of the flag of the maximum transmit power read is 0, it is identified that the PHR includes P _cmax , _Cl _« , and the P _cmax , _{The α} -type is read; if the value of the flag of the maximum transmitted power read is 1, it is identified that the PHR does not contain the P _cmax , _Cl − type, and the reading of the PHR is ended after reading Ρ.

In this embodiment, the base station may «decide the size of the previous uplink transmit power based on the reading and ΡΗ P _{cmax, Cl} _, to ensure maximum use of power and does not exceed the maximum transmit power of a user.

 506: If the MAC PDU includes the MAC SDU, the base station calculates the length of the MAC SDU according to the index of all CCs in the extended PHR and the flag of the maximum transmit power in the PHR corresponding to all CCs in the extended PHR, and reads the MAC SDU according to the length.

 Since the last MAC sub-header in the MAC PDU does not include the L field, if the last MAC sub-header corresponds to the MCE, the MCE can be directly read without calculating the length of the MCE; if the last MAC sub-head corresponds to If the MAC SDU is used, the length of the MAC SDU needs to be calculated before the MAC SDU can be read.

Specifically, the length of the extended PHR in each MCE may be calculated. Since the base station knows the total length of the MAC PDU and the length of each MAC sub-head is fixed, according to the total length of the MAC PDU, the length of each MAC sub-head, and each The length of the extended PHR in the MCE can calculate the MAC SDU Length.

Among them, the calculation of the length of the extended PHR can be based on the C _r type and V. Specifically, when the value of the d-type is 1, the C _r «reports the PHR, and the V in the PHR is read. If the value of V is 0, the PHR is identified to include P _emax , _α _ _Λ , The PHR occupies 16 bits. If the value of V is 1, it identifies that the PHR does not contain P _cmax , _Cl _« , at which point the PHR occupies 8 bits, and so on, until all C _r types are calculated. The length of the corresponding PHR, plus 6 C _r types and 8 bits occupied by 2 R, can obtain the length of the extended PHR.

Suppose extended PHR type are arranged d- d- type d - type 2, type 1, type 1, C ^ 4- Type 1 Type ₁ and C ₅ _ their corresponding values are 1, 1, 1, 0, 1 and 1, since the C ₃ _ type does not report the extended PHR, the length of the corresponding extended PHR is 0, further assuming that d_type d-type ₂ , C ₂ pick, C _4- type ^ port C _5- type 丄 corresponds The values of V are 0, 1, 1, 1, and 0, respectively, and the type 丄 and (the type of extension PHR corresponding to each type are 8 bits, d_« ₂ , C ₂ _« ^PC ₄ _ _EI respectively correspond to The length of the extended PHR is 16 bits, plus 6 (^-« and 2 bits occupied by 2 R, the total length of the extended PHR is L=8+8+16+16+16+8=72 ( Assume that the total length of the MAC PDU is 256 (bit), the MAC PDU contains three MAC sub-headers, and the length of each MAC sub-header is 8 (bit), and the length of the PHR in the MCE corresponding to the first two MAC sub-headers 64 (bit) and 72 (bit), respectively, the length of the MAC SDU is L, = 256-8 3-64-72 = 96 (bit).

 The foregoing method provided in this embodiment, by receiving a MAC PDU sent by the UE, the MAC sub-header of the MAC PDU includes R, E, and LCID; acquiring the LCID in the MAC sub-header; acquiring the MCE corresponding to the MAC sub-head according to the LCID, The extended PHR in the MCE is parsed, which avoids the problem of setting the L field waste resource in the MAC subheader. In addition, it is not necessary to judge whether the parsing is correct according to the L field, and the complexity of parsing the extended PHR is reduced.

 In addition, if the MAC PDU includes the MAC SDU, the length of the MAC SDU is calculated according to the index of all the CCs in the extended PHR and the flag of the maximum transmit power in the PHR corresponding to all CCs in the extended PHR, and the MAC SDU is read according to the length, without The length is calculated according to the L field, so that the problem that the L field is wasted in the MAC subheader can be avoided. Embodiment 3

 Referring to FIG. 7, this embodiment provides a base station, where the base station includes:

The receiving module 701 is configured to receive a MAC PDU sent by the UE, where the MAC sub-header of the MAC PDU includes R, E, and LCID; The obtaining module 702 is configured to obtain an LCID in the MAC subheader.

 The parsing module 703 is configured to obtain an MCE corresponding to the MAC sub-head according to the LCID, and parse the extended PHR in the MCE.

 Referring to FIG. 8, in this embodiment, the parsing module 703 may include:

 The reading unit 703A is configured to read an index of a CC in the extended PHR;

 a determining unit 703B, configured to determine, according to an index, whether the CC is reported to the PHR;

 The parsing unit 703C is configured to parse the PHR corresponding to the certain CC in the extended PHR if the determining unit 703A determines that the PHR is reported by the certain CC.

 In this embodiment, the parsing unit 703C is configured to read a flag bit of a maximum transmit power in a PHR corresponding to a CC in the extended PHR; determine whether a CC reports the maximum transmit power according to the flag bit; if yes, read the maximum transmit power.

 In this embodiment, the parsing unit 703C is further configured to read the PH in the PHR corresponding to a CC in the extended PHR.

 Referring to FIG. 8, in this embodiment, the base station may further include:

 The reading module 704 is configured to: if the MAC PDU includes the MAC service data unit SDU, calculate the length of the MAC SDU according to the index of all CCs in the extended PHR and the flag bit of the maximum transmit power in the PHR corresponding to all CCs in the extended PHR, according to the The length reads the MAC SDU.

 The base station provided in this embodiment receives the MAC PDU sent by the UE, and the MAC sub-header of the MAC PDU includes R, E, and LCID; acquires the LCID in the MAC sub-header; acquires the MCE corresponding to the MAC sub-head according to the LCID, and The extended PHR in the MCE is parsed, which avoids the problem of setting the L field waste resource in the MAC subheader. In addition, it is not necessary to judge whether the parsing is correct according to the L field, and the complexity of parsing the extended PHR is reduced.

 In addition, if the MAC PDU includes the MAC SDU, the length of the MAC SDU is calculated according to the index of all the CCs in the extended PHR and the flag of the maximum transmit power in the PHR corresponding to all CCs in the extended PHR, and the MAC SDU is read according to the length, without The length is calculated according to the L field, so that the problem that the L field is wasted in the MAC subheader can be avoided. Embodiment 4

 Referring to FIG. 9, this embodiment provides a base station, where the base station includes:

The receiver 901 is configured to receive a MAC PDU sent by the UE, where the MAC sub-header of the MAC PDU includes R, E, and LCID; The processor 902 is configured to obtain an LCID in the MAC sub-header, obtain an MCE corresponding to the M AC sub-head according to the LCID, and parse the extended PHR in the MCE.

 In this embodiment, the processor 902 is further configured to: read an index of a CC in the extended PHR; determine whether the certain CC reports the PHR according to the index; and if it is determined that the CC is reported by the CC, the extended PHR is The PHR corresponding to the certain CC is parsed.

 In this embodiment, the processor 902 is further configured to: read a flag bit of a maximum transmit power in a PHR corresponding to a CC in the extended PHR; determine, according to the flag bit, whether a CC reports the maximum transmit power; if yes, read the maximum Transmit power.

 In this embodiment, the processor 902 is further configured to read the PH in the PHR corresponding to a CC in the extended PHR.

 In this embodiment, the processor 902 is further configured to: if the MAC PDU includes the MAC SDU, calculate the length of the MAC SDU according to the index of all CCs in the extended PHR and the flag of the maximum transmit power in the PHR corresponding to all CCs in the extended PHR, The MAC SDU is read according to the length.

 The base station provided in this embodiment receives the MAC PDU sent by the UE, and the MAC sub-header of the MAC PDU includes R, E, and LCID; acquires the LCID in the MAC sub-header; acquires the MCE corresponding to the MAC sub-head according to the LCID, and The extended PHR in the MCE is parsed, which avoids the problem of setting the L field waste resource in the MAC subheader. In addition, it is not necessary to judge whether the parsing is correct according to the L field, and the complexity of parsing the extended PHR is reduced.

 In addition, if the MAC PDU includes the MAC SDU, the length of the MAC SDU is calculated according to the index of all the CCs in the extended PHR and the flag of the maximum transmit power in the PHR corresponding to all CCs in the extended PHR, and the MAC SDU is read according to the length, without The length is calculated according to the L field, so that the problem that the L field is wasted in the MAC subheader can be avoided. Embodiment 5

 Referring to FIG. 10, this embodiment provides a user equipment UE, where the UE includes:

 The setting module 1001 is configured to add an extension to the MCE corresponding to the MAC sub-header of the MAC PDU.

PHR, and setting an LCID in the MAC sub-head corresponding to the MCE according to the MCE, where the MAC sub-head includes a reserved bit R, an extended bit E, and an LCID;

 The sending module 1002 is configured to send a MAC PDU to the base station, so that the base station acquires the MCE corresponding to the MAC sub-head according to the LCID in the MAC sub-header of the MAC PDU and the extension in the MCE

PHR is parsed. The foregoing UE provides the extended PHR in the MCE corresponding to the MAC sub-header of the MAC PDU, and sets the LCID in the MAC sub-head corresponding to the MCE according to the MCE, where the MAC sub-head includes the reserved bit R, The extension bit E and the LCID can avoid the problem that the L field is wasted in the MAC subheader; in addition, it is not necessary to judge whether the parsing is correct according to the L field, and the complexity of parsing the extended PHR is reduced. Embodiment 6

 Referring to FIG. 11, the embodiment provides a user equipment UE, where the UE includes:

 The processor 1101 is configured to add an extension to the MCE corresponding to the MAC sub-header of the MAC PDU.

PHR, and setting an LCID in the MAC sub-head corresponding to the MCE according to the MCE, where the MAC sub-head includes a reserved bit R, an extended bit E, and an LCID;

 The transmitter 1102 is configured to send a MAC PDU to the base station, so that the base station is configured according to the MAC PDU.

The LCID in the MAC sub-header obtains the MCE corresponding to the MAC sub-header and parses the extended PHR in the MCE.

 The foregoing UE provides the extended PHR in the MCE corresponding to the MAC sub-header of the MAC PDU, and sets the LCID in the MAC sub-head corresponding to the MCE according to the MCE, where the MAC sub-head includes the reserved bit R, The extension bit E and the LCID can avoid the problem that the L field is wasted in the MAC subheader; in addition, it is not necessary to judge whether the parsing is correct according to the L field, and the complexity of parsing the extended PHR is reduced. Example 7

 Referring to FIG. 12, the embodiment provides a system for parsing an extended power headroom report, and the system includes: a base station 1201 and a user equipment 1202.

 The base station 1201 may be the base station provided in the third embodiment or the fourth embodiment. The user equipment 1202 may be the user equipment provided in the fifth embodiment or the sixth embodiment.

 The system provided in this embodiment receives the MAC PDU sent by the UE, and the MAC sub-header of the MAC PDU includes R, E, and LCID; acquires the LCID in the MAC sub-header; acquires the MCE corresponding to the MAC sub-head according to the LCID, and The extended PHR in the MCE is parsed, which avoids the problem of setting the L field waste resource in the MAC subheader. In addition, it is not necessary to judge whether the parsing is correct according to the L field, and the complexity of parsing the extended PHR is reduced.

In addition, if the MAC PDU contains a MAC SDU, then according to all CCs in the extended PHR The index of the maximum transmit power in the PHR corresponding to all CCs in the extended PHR calculates the length of the MAC SDU, and reads the MAC SDU according to the length, and does not need to calculate the length according to the L field, thereby avoiding setting the L field in the MAC subheader. The problem of wasting resources. It should be noted that: the base station, the user equipment, and the system for parsing the extended power headroom reported by the foregoing embodiments are only exemplified by the division of the foregoing functional modules. In actual applications, the foregoing functions may be allocated differently according to requirements. The function module is completed, that is, the internal structure of the system for reporting the base station, the user equipment, and the parsing extended power headroom is divided into different functional modules to complete all or part of the functions described above. In addition, the system for reporting the base station, the user equipment, and the method for reporting the extended power headroom is the same as the method for parsing the method for reporting the extended power headroom. The specific implementation process is described in the method embodiment, and details are not described herein. .

 The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

 A person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium. The storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

 The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

claims 1. A method for parsing extended power headroom reporting, characterized in that the method includes: receiving a media access control MAC packet data unit PDU sent by the user equipment UE, the The MAC subheader of the MAC PDU contains reserved bits R, extended bits E and logical channel identification LCID; obtain the LCID in the MAC subheader; Obtain the media control element MCE corresponding to the MAC subheader according to the LCID, and parse the extended power headroom report PHR in the MCE. 2. The method according to claim 1, characterized in that: parsing the extended power headroom report PHR in the MCE includes: Read the index of a certain component carrier CC in the extended PHR; Determine whether the certain CC reports PHR according to the index; If yes, parse the PHR corresponding to the certain CC in the extended PHR. 3. The method according to claim 2, characterized in that said parsing the PHR corresponding to a certain CC in the extended PHR includes: Read the flag bit of the maximum transmit power in the PHR corresponding to a certain CC in the extended PHR; Determine whether the certain CC reports the maximum transmit power according to the flag bit; If so, read the maximum transmit power. 4. The method according to claim 2, characterized in that said parsing the PHR corresponding to a certain CC in the extended PHR includes: Read the power headroom PH in the PHR corresponding to the certain CC in the extended PHR. 5. The method according to claim 1, characterized in that, the method further includes: If the MAC PDU contains a MAC service data unit SDU, the length of the MAC SDU is calculated based on the indexes of all CCs in the extended PHR and the flag bits of the maximum transmit power in the PHR corresponding to all CCs in the extended PHR. , read the MAC SDU according to the length. 6. A method for parsing extended power headroom reporting, characterized in that the method includes: adding an extended power headroom upper PHR to the media control element MCE corresponding to the MAC subheader of the media access control MAC packet data unit PDU , and set the logical channel identifier LCID in the MAC sub-header corresponding to the MCE according to the MCE, where the MAC sub-header includes reserved bits R, extension bits E and the LCID; Send the MAC PDU to the base station, so that the base station obtains the MCE corresponding to the MAC sub-header according to the LCID in the MAC sub-header of the MAC PDU and performs the extended PHR on the MCE Perform analysis. 7. A base station, characterized in that, the base station includes: A receiving module, configured to receive the media access control MAC packet data unit PDU sent by the user equipment UE, where the MAC subheader of the MAC PDU includes reserved bits R, extended bits E and logical channel identification LCID; Obtaining module, used to obtain the LCID in the MAC subheader; A parsing module, configured to obtain the media control element MCE corresponding to the MAC subheader according to the LCID, and parse the extended power headroom report PHR in the MCE. 8. The base station according to claim 7, characterized in that the parsing module includes: a reading unit, used to read the index of a certain component carrier CC in the extended PHR; A judgment unit, used to judge whether the certain CC reports PHR according to the index; The parsing unit is configured to parse the PHR corresponding to the certain CC in the extended PHR if the judgment unit judges that the certain CC reported the PHR. 9. The base station according to claim 8, characterized in that, the parsing unit is used to read the flag bit of the maximum transmit power in the PHR corresponding to the certain CC in the extended PHR; according to the The flag bit determines whether the certain CC reports the maximum transmission power; if so, read the maximum transmission power. 10. The base station according to claim 8, wherein the parsing unit is further configured to read the power headroom PH in the PHR corresponding to the certain CC in the extended PHR. 11. The base station according to claim 7, characterized in that, the base station further includes: a reading module, configured to: if the MAC PDU contains a MAC service data unit SDU, according to the index of all CCs in the extended PHR Calculate the length of the MAC SDU based on the flag bits of the maximum transmit power in the PHR corresponding to all the CCs in the extended PHR, and read the MAC SDU based on the length. 12. A base station, characterized in that, the base station includes: Receiver, configured to receive the media access control MAC packet data unit PDU sent by the user equipment UE, the MAC subheader of the MAC PDU includes reserved bits R, extended bits E and logical channel identification LCID; According to the LCID Obtain the media control element MCE corresponding to the MAC subheader, and parse the extended power headroom report PHR in the MCE. 13. The base station according to claim 12, wherein the processor is further configured to read the index of a certain component carrier CC in the extended PHR; and determine whether the certain CC is reported based on the index. PHR; If it is determined that the certain CC reported the PHR, parse the PHR corresponding to the certain CC in the extended PHR. 14. The base station according to claim 13, wherein the processor is further configured to read the flag bit of the maximum transmit power in the PHR corresponding to the certain CC in the extended PHR; according to the The flag bit determines whether the certain CC reports the maximum transmission power; if so, read the maximum transmission power. 15. The base station according to claim 13, wherein the processor is further configured to read the power headroom PH in the PHR corresponding to the certain CC in the extended PHR. 16. The base station according to claim 12, characterized in that, the processor is further configured to: if the MAC PDU contains a MAC service data unit SDU, according to the index of all CCs in the extended PHR and the extended The length of the MAC SDU is calculated based on the flag bits of the maximum transmit power in the PHR corresponding to all CCs in the PHR, and the MAC SDU is read based on the length. 17. A user equipment UE, characterized in that the UE includes: A setting module configured to add extended power headroom reporting PHR to the media control element MCE corresponding to the MAC subheader of the media access control MAC packet data unit PDU, and set the MAC subheader corresponding to the MCE according to the MCE The logical channel identifier LCID in , the MAC subheader includes reserved bits R, extension bits E and the LCID; A sending module, configured to send the MAC PDU to the base station, so that the base station parses the extended PHR in the MCE according to the MAC. 18. A user equipment UE, characterized in that the UE includes: A processor configured to add an extended power headroom upper PHR to the media control element MCE corresponding to the MAC subheader of the media access control MAC packet data unit PDU, and set the MAC subheader corresponding to the MCE according to the MCE The logical channel identifier LCID in , the MAC subheader includes reserved bits R, extension bits E and the LCID; Transmitter, configured to send the MAC PDU to the base station, so that the base station obtains the MCE corresponding to the MAC sub-header according to the LCID in the MAC sub-header of the MAC PDU and performs the processing in the MCE The extension PHR is parsed. 19. A system for parsing extended power headroom reporting, characterized in that the system includes: the base station according to any one of claims 7-11 and the user equipment UE according to claim 17; Alternatively, the system includes the base station described in any one of claims 12 to 16 and the UE described in claim 18.