CN104284366A - Communication method and user equipment - Google Patents

Abstract

The embodiment of the invention discloses communication method and user equipment. The method includes the steps that first user equipment receives a medium access control protocol data unit (MAC PDU) sent by second user equipment, and the first n digits of the first bit in the MAC PDU are the MAC PDU format version number information, wherein the n is larger than or equal to 1 and smaller than 8; when the MAC PDU format version number information of the first user equipment is the MAC PDU format version number information which is supported by the first user equipment, the MAC PDU is determined as the valid MAC PDU. By means of the communication method and the user equipment, it is avoided that resources are occupied when a MAC sub packet header is adopted separately for the MAC PDU format version number information, and the cost of the MAC PDU is reduced.

Description

A kind of communication means and subscriber equipment

Technical field

The present invention relates to communication technique field, particularly relate to a kind of communication means and subscriber equipment.

Background technology

Equipment is to equipment (Device-to-Device, D2D) communication technology is the technology of direct communication between a kind of equipment and equipment, with existing honeycomb communication technology unlike, the data of subscriber equipment do not need through base-station transmission, but directly directly eat dishes without rice or wine to transmit by equipment and equipment, thus decrease the time delay of forwarded.

D2D subscriber equipment (User Equipment, UE) D2D data can be sent to certain UE or certain communication set, in the medium access control layer protocol data cell MAC PDU (Medium Access Control Protocol Data Unit) sent, there is corresponding source ID and object ID, wherein object ID can be the ID of certain UE, also can be the ID of certain communication set, owing to may change in the form D2D version afterwards of MAC PDU, therefore in MAC PDU, comprise a MAC PDU format version number (MAC PDU format version number) information.

First territory instruction MAC PDU format version number in the MAC PDU of prior art, second of MAC PDU and the 3rd territory instruction source ID and object ID, MAC PDU format version reality of the prior art only needs to use 1-3bits, but because each attached bag head in MAC PDU is all byte-aligned, so this MAC PDU format version number at least consumes a byte (8bits), need to consume at least 1 byte to carry MAC PDU format version information at each MAC PDU like this, cause the excess resource expense of MAC PDU format version information.

Summary of the invention

Embodiments provide a kind of communication means and subscriber equipment, avoid and adopt a byte to be MAC PDU format version information taking resource separately, decrease the expense of MAC PDU.

Embodiment of the present invention first aspect provides a kind of communication means, comprising:

First user equipment receives the medium access control layer protocol data cell MAC PDU that the second subscriber equipment sends, and in described MAC PDU, the front n position of first character joint is MAC PDU format version information, and n is more than or equal to 1 and is less than 8;

Described first user equipment, when described MAC PDU format version information is the MAC PDU format version information self supported, determines that described MAC PDU is effective MAC PDU.

In conjunction with the first aspect of the embodiment of the present invention, in the first implementation of the first aspect of the embodiment of the present invention, described first user equipment, when described MAC PDU format version information is the MAC PDU format version information self do not supported, abandons described MAC PDU.

In conjunction with the first aspect of the embodiment of the present invention or the first implementation of first aspect, in the second implementation of the first aspect of the embodiment of the present invention, the last position that in described MAC PDU, first character saves or the first two position are described MAC PDU format version information.

In conjunction with the second implementation of the first aspect of the embodiment of the present invention or the first implementation of first aspect or first aspect, in the third implementation of the first aspect of the embodiment of the present invention, the first character joint in described MAC PDU is the first character joint in described MAC PDU in first MAC attached bag head.

In conjunction with the second implementation of the first aspect of the embodiment of the present invention or the first implementation of first aspect or first aspect, in the 4th kind of implementation of the first aspect of the embodiment of the present invention, other except MAC PDU format version information of first character in described MAC PDU joint is the identification information of described second subscriber equipment.

The second aspect of the embodiment of the present invention provides a kind of communication means, comprising:

First user equipment receives the MAC PDU that the second subscriber equipment sends, and in described MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information;

Described first user equipment, according to described Information Element format version number information, determines the effective information unit in described MAC PDU.

In conjunction with the second aspect of the embodiment of the present invention, in the first implementation of embodiment of the present invention second aspect, Destination MAC attached bag head in the corresponding described MAC PDU of each information unit in described MAC PDU, described Destination MAC attached bag head comprises the Information Element format version number information of corresponding informance unit;

Described first user equipment, according to described Information Element format version number information, determines that the effective information unit in described MAC PDU comprises:

Described first user equipment judges the Information Element format version number information whether the Information Element format version number information in each Destination MAC attached bag head is supported for self, if so, determines that the information unit of Destination MAC attached bag head correspondence is effective information unit.

In conjunction with the second aspect of the embodiment of the present invention or the first implementation of second aspect, in the second implementation of embodiment of the present invention second aspect, described method also comprises: described first user equipment judges whether include effective information unit in described MAC PDU, if not, then abandon described MAC PDU, if so, then receive effective information unit in described MAC PDU, abandon the out of Memory unit except described effective information unit in described MAC PDU.

In conjunction with the second implementation of the second aspect of the embodiment of the present invention or the first implementation of second aspect or second aspect, in the third implementation of embodiment of the present invention second aspect, the last position of described Destination MAC attached bag head or front two are described Information Element format version number information.

In conjunction with the second aspect of the embodiment of the present invention or the second implementation of the first implementation of second aspect or second aspect or the third implementation of second aspect, in the third implementation of embodiment of the present invention second aspect, described information unit is media access control layer service data unit MAC SDU or media access control layer control element MAC CE.

The embodiment of the present invention third aspect provides a kind of communication means, comprising:

Second subscriber equipment sends application radio resource request to serving BS, distributes the Radio Resource of transmission MAC PDU to described second subscriber equipment to make described serving BS;

Described second subscriber equipment receives the wireless resource information that described serving BS sends;

The wireless resource information that serving BS described in described second subscriber equipment sends, sends MAC PDU to first user equipment;

In described MAC PDU, the front n position of first character joint is MAC PDU format version information, and n is more than or equal to 1 and is less than 8,

Or MAC attached bag head comprises MAC PDU Information Element format version number information in described MAC PDU.

In conjunction with the third aspect of the embodiment of the present invention, in the first implementation of the embodiment of the present invention third aspect, the second subscriber equipment sends application radio resource request to serving BS and comprises:

Described second subscriber equipment selects targeting sequencing Preamble group according to pre-defined rule, sends the targeting sequencing in the targeting sequencing Preamble group selected to serving BS.

In conjunction with the first implementation of the third aspect of the embodiment of the present invention, in the second implementation of the embodiment of the present invention third aspect, described second subscriber equipment selects targeting sequencing Preamble group according to pre-defined rule, and the targeting sequencing sent in the targeting sequencing Preamble group selected comprises:

The targeting sequencing group A that described second subscriber equipment selects described serving BS to configure, sends the targeting sequencing in targeting sequencing group A to described serving BS.

In conjunction with the first implementation of the third aspect of the embodiment of the present invention, in the third implementation of the embodiment of the present invention third aspect, described second subscriber equipment selects targeting sequencing Preamble group according to pre-defined rule, and the targeting sequencing sent in the targeting sequencing Preamble group selected comprises:

Described second subscriber equipment judges whether that the data volume simultaneously meeting self other upstream data except D2D data to be sent is greater than the first pre-determined threshold, and the link load between described second subscriber equipment and described serving BS is less than the second pre-determined threshold, if, then select the targeting sequencing group B that described serving BS configures, the targeting sequencing in described targeting sequencing group B is sent to described serving BS, if not, then select the targeting sequencing group A that described serving BS configures, send the targeting sequencing in described targeting sequencing group A to described serving BS.

Embodiment of the present invention fourth aspect provides a kind of subscriber equipment, comprising:

Receiving element, for the medium access control layer protocol data cell MAC PDU that receiving target subscriber equipment sends, in described MAC PDU, the front n position of first character joint is MAC PDU format version information, and n is more than or equal to 1 and is less than 8;

Processing unit, during for being the MAC PDU format version information self supported in described MAC PDU format version information, determines that described MAC PDU is effective MAC PDU.

In conjunction with the fourth aspect of the embodiment of the present invention, in the first implementation of embodiment of the present invention fourth aspect, described processing unit also for when described MAC PDU format version information is the MAC PDU format version information self do not supported, abandons described MAC PDU.

In conjunction with the fourth aspect of the embodiment of the present invention or the first implementation of fourth aspect, in the second implementation of embodiment of the present invention fourth aspect, the last position that in described MAC PDU, first character saves or the first two position are described MAC PDU format version information.

In conjunction with the second implementation of the fourth aspect of the embodiment of the present invention or the first implementation of fourth aspect or fourth aspect, in the third implementation of embodiment of the present invention fourth aspect, the first character joint in described MAC PDU is the first character joint in described MAC PDU in first MAC attached bag head.

In conjunction with the fourth aspect of the embodiment of the present invention or the second implementation of the first implementation of fourth aspect or fourth aspect or the third implementation of fourth aspect, in the 4th kind of implementation of embodiment of the present invention fourth aspect, other except MAC PDU format version information of first character in described MAC PDU joint is the identification information of described second subscriber equipment.

The embodiment of the present invention the 5th aspect provides a kind of subscriber equipment, comprising:

Receiving element, for the MAC PDU that receiving target subscriber equipment sends, in described MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information;

Processing unit, for according to described Information Element format version number information, determines the effective information unit in described MAC PDU.

In conjunction with the 5th aspect of the embodiment of the present invention, in the first implementation in the embodiment of the present invention the 5th, described processing unit is specifically for the Destination MAC attached bag head in the corresponding described MAC PDU of each information unit in described MAC PDU, when described Destination MAC attached bag head comprises the Information Element format version number information of corresponding informance unit, judge the Information Element format version number information whether the Information Element format version number information in each Destination MAC attached bag head is supported for self, if, the information unit determining Destination MAC attached bag head correspondence is effective information unit.

In conjunction with the 5th aspect of the embodiment of the present invention or the first implementation of the 5th aspect, in the second implementation in the embodiment of the present invention the 5th, described processing unit is also for judging whether include effective information unit in described MAC PDU, if not, then abandon described MAC PDU, if so, then receive the effective information unit in described MAC PDU, abandon the out of Memory unit except described effective information unit in described MAC PDU.

In conjunction with the second implementation of the 5th aspect of the embodiment of the present invention or the first implementation of the 5th aspect or the 5th aspect, in the third implementation in the embodiment of the present invention the 5th, the last position of described Destination MAC attached bag head or front two are described Information Element format version number information.

In conjunction with the 5th aspect of the embodiment of the present invention or the second implementation of the first implementation of the 5th aspect or the 5th aspect or the third implementation of the 5th aspect, in the 4th kind of implementation in the embodiment of the present invention the 5th, described information unit is media access control layer service data unit MAC SDU or media access control layer control element MAC CE.

The embodiment of the present invention the 6th aspect provides a kind of subscriber equipment, comprising:

Transmitting element, for sending application radio resource request to serving BS, distributes the Radio Resource of transmission MAC PDU to described subscriber equipment to make described serving BS;

Receiving element, for receiving the wireless resource information that described serving BS sends;

Described transmitting element, also for the wireless resource information that described serving BS sends, sends MAC PDU to target UE; In described MAC PDU, the front n position of first character joint is MAC PDU format version information, and n is more than or equal to 1 and is less than 8, or in described MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information.

In conjunction with the 6th aspect of the embodiment of the present invention, in the first implementation in the embodiment of the present invention the 6th, described transmitting element, specifically for selecting targeting sequencing Preamble group according to pre-defined rule, sends the targeting sequencing in the targeting sequencing Preamble group selected.

In conjunction with the first implementation of the 6th aspect of the embodiment of the present invention, in the second implementation in the embodiment of the present invention the 6th, described transmitting element is specifically for sending the targeting sequencing in the targeting sequencing group A of described serving BS configuration.

In conjunction with the first implementation of the 6th aspect of the embodiment of the present invention, in the third implementation in the embodiment of the present invention the 6th, described transmitting element is specifically for judging whether that the data volume meeting described subscriber equipment other upstream datas except D2D data to be sent is greater than the first pre-determined threshold simultaneously, and the link load between described subscriber equipment and described serving BS is less than the second pre-determined threshold, if, then send the targeting sequencing of the targeting sequencing group B of described serving BS configuration, if not, then send the targeting sequencing of the targeting sequencing group A of described serving BS configuration.

As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:

The front n position adopting the first character joint of MAC PDU is MAC PDU format version information, or the format version information of corresponding informance unit is set in each MAC attached bag head, avoid and adopt a MAC attached bag head or a byte to be MAC PDU format version information taking resource separately, decrease the expense of MAC PDU.

Accompanying drawing explanation

Fig. 1 is an embodiment schematic diagram of communication means in the embodiment of the present invention;

Fig. 2 is another embodiment schematic diagram of communication means in the embodiment of the present invention;

Fig. 3 is another embodiment schematic diagram of communication means in the embodiment of the present invention;

Fig. 4 is another embodiment schematic diagram of communication means in the embodiment of the present invention;

Fig. 5 is another embodiment schematic diagram of communication means in the embodiment of the present invention;

Fig. 6 is another embodiment schematic diagram of communication means in the embodiment of the present invention;

Fig. 7 is another embodiment schematic diagram of communication means in the embodiment of the present invention;

Fig. 8 is another embodiment schematic diagram of communication means in the embodiment of the present invention;

Fig. 9 is an embodiment schematic diagram of first user equipment in the embodiment of the present invention;

Figure 10 is another embodiment schematic diagram of first user equipment in the embodiment of the present invention;

Figure 11 is an embodiment schematic diagram of the second subscriber equipment in the embodiment of the present invention.

Embodiment

Embodiments provide a kind of communication means and subscriber equipment, avoid and adopt a byte to be MAC PDU format version information taking resource separately, decrease the expense of MAC PDU.

The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.

Refer to Fig. 1, in the embodiment of the present invention, an embodiment of communication means comprises:

101, first user equipment receives the medium access control layer protocol data cell MAC PDU that the second subscriber equipment sends;

In the present embodiment, first user equipment and the second subscriber equipment are D2D subscriber equipment (User Equipment, UE), D2D subscriber equipment can send D2D data to certain UE or certain communication set, in the medium access control layer protocol data cell MAC PDU (Medium Access Control Protocol Data Unit) sent, there is corresponding source ID and object ID, wherein object ID can be the ID of certain UE, also can be the ID of certain communication set, owing to may change in the form D2D version afterwards of MAC PDU, therefore in MAC PDU, comprise a MAC PDU format version number (MAC PDU format version number) information, so that the equipment received determines the MAC PDU self supported,

In the present embodiment, second subscriber equipment sends MAC PDU to first user equipment, this MAC PDU is D2D MAC PDU, in the MAC PDU that first user equipment receives, source ID is the ID of the second subscriber equipment, object ID is the ID of the ID of first user equipment or the communication group residing for first user equipment, and the front n position that first user equipment receives first character joint in the MAC PDU of the second subscriber equipment transmission is MAC PDU format version information, 1≤n < 8.

102, first user equipment is when MAC PDU format version information is the MAC PDU format version information self supported, determines that MAC PDU is effective MAC PDU.

After first user equipment receives the MAC PDU of the second subscriber equipment transmission, MAC PDU format version information in MAC PDU can be identified, when MAC PDU format version information is the MAC PDU format version information self supported, determine that the MAC PDU received is effective MAC PDU, first user equipment after determining that MAC PDU is effective MAC PDU, this MAC PDU of normal process.

In the present embodiment, the front n position adopting the first character joint of MAC PDU is MAC PDU format version information, avoids and adopts a MAC attached bag head or a byte to be MAC PDU format version information taking resource separately, decrease the expense of MAC PDU.

In embodiment shown in Fig. 1, first user equipment is when MAC PDU format version information is the MAC PDU format version information self do not supported, directly can abandon this MAC PDU, detailed description is made below with a specific embodiment, refer to Fig. 2, in the embodiment of the present invention, another embodiment of communication means comprises:

201, first user equipment receives the medium access control layer protocol data cell MAC PDU that the second subscriber equipment sends;

In the present embodiment, second subscriber equipment sends MAC PDU to first user equipment, this MAC PDU is D2D MAC PDU, in the MAC PDU that first user equipment receives, source ID is the ID of the second subscriber equipment, object ID is the ID of the ID of first user equipment or the communication group residing for first user equipment, first user equipment and the second subscriber equipment are D2D subscriber equipment, second subscriber equipment sends MAC PDU to the first equipment, the front n position that first user equipment receives first character joint in the MAC PDU of the second subscriber equipment transmission is MAC PDU format version information, wherein, 1≤n < 8,

MAC PDU format version informational needs take more multibyte time, MAC PDU format version information can take more multidigit in first character joint in MAC PDU, as when in MAC PDU, the last position of first character joint is MAC PDU format version information, as 0 represents version 0, 1 represents version 1, when MAC PDU has larger version, can be in MAC PDU first character joint the first two position be MAC PDU format version information, as 00 represents version 0, 01 represents version 1, in like manner increase progressively successively, as 000 represents version 0, 001 represents version 1 etc., present stage, MAC PDU format version information uses 1 or 2 bit representations, therefore preferred, the last position that in MAC PDU, first character saves or the first two position are MAC PDU format version information, do not do concrete restriction herein.

At first MAC attached bag head in MAC PDU during foremost, the first character joint in MAC PDU can be the first character joint in MAC PDU in first MAC attached bag head, does not now do concrete restriction.

It should be noted that, other except MAC PDU format version information of first character joint in MAC PDU can be the identification information of the second subscriber equipment, the identification information of MAC PDU format version information and the second subscriber equipment is made to share a byte, economize on resources, do not do concrete restriction herein.

202, first user equipment judges whether MAC PDU format version information is the MAC PDU format version information that self supports, if so, then determines that MAC PDU is effective MAC PDU, if not, then performs step 203;

After first user equipment receives the MAC PDU of the second subscriber equipment transmission, MAC PDU format version information in MAC PDU can be identified, judge that MAC PDU format version information is the MAC PDU format version information that self supports, if, determine that the MAC PDU received is effective MAC PDU, this MAC PDU of normal process.

203, first user equipment abandons this MAC PDU.

First user equipment, when MAC PDU format version information is the MAC PDU format version information self do not supported, abandons this MAC PDU.

In the present embodiment, the front n position adopting the first character joint of MAC PDU is MAC PDU format version information, avoid and adopt a MAC attached bag head or a byte to be MAC PDU format version information taking resource separately, decrease the expense of MAC PDU, secondly, the MAC PDU that self does not support by first user equipment abandons, and has saved resource occupation.

The form that MAC PDU format version information can comprise MAC PDU Information Element format version number information with MAC attached bag head in MAC PDU represents, detailed description is made below in conjunction with specific embodiment, refer to Fig. 3, in the embodiment of the present invention, another embodiment of communication means comprises:

301, first user equipment receives the MAC PDU that the second subscriber equipment sends;

In the present embodiment, the second subscriber equipment sends MAC PDU to first user equipment, and this MAC PDU is D2D MAC PDU, and in this MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information;

302, first user equipment is according to described Information Element format version number information, determines the effective information unit in MAC PDU.

First user equipment can identify Information Element format version number information in MAC PDU, according to MAC PDU Information Element format version number information, determine the effective information unit in MAC PDU after receiving the MAC PDU of the second subscriber equipment transmission.

In the present embodiment, the format version information of configuration information unit in the MAC attached bag head of MAC PDU, avoids and adopts a MAC attached bag head or a byte to be MAC PDU format version information taking resource separately, decrease the expense of MAC PDU.

In embodiment shown in Fig. 3, in MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information, Destination MAC attached bag head in the corresponding MAC PDU of each information unit in MAC PDU, each Destination MAC attached bag head comprises the Information Element format version number information of corresponding informance unit, describe in detail with a specific embodiment below, refer to Fig. 4, in the embodiment of the present invention, another embodiment of communication means comprises:

401, first user equipment receives the MAC PDU that the second subscriber equipment sends;

In the present embodiment, second subscriber equipment sends MAC PDU to first user equipment, this MAC PDU is D2D MAC PDU, each information unit in this MAC PDU can Destination MAC attached bag head in a corresponding MAC PDU, front n position in each Destination MAC attached bag head is the Information Element format version number information of corresponding informance unit, 1≤n < 8, preferably, the last position of each Destination MAC attached bag head or front two are described Information Element format version number information.

Information Element format version number information need take more multibyte time, Information Element format version number information can take more multidigit in each Destination MAC attached bag head, as the last position in each Destination MAC attached bag head be Information Element format version number information time, as 0 represents version 0, 1 represents version 1, when information unit has larger version number, can be the first two position in each Destination MAC attached bag head be Information Element format version number information, as 00 represents version 0, 01 represents version 1, in like manner increase progressively successively, as 000 represents version 0, 001 represents version 1 etc., present stage, Information Element format version number information uses 1 or 2 bit representations, therefore preferred, last position in each Destination MAC attached bag head or the first two position are Information Element format version number information, do not do concrete restriction herein.

Be understandable that, in a MAC PDU, Information Element format version number information in different target MAC attached bag head can take different figure places according to Information Element format version number information, as in a MAC PDU, there is the information unit of version number 0, the information unit of version 2 number, in then corresponding Destination MAC attached bag head, version is 0, can take the last position in Destination MAC attached bag head, namely represents with 0, version number is 2, the first two position in Destination MAC attached bag head can be taken, namely 11, not do concrete restriction herein.

IP (Internet Protocol) the header compression algorithm information of the radio bearer RB (Radio Bearer) corresponding to MAC PDU information unit can also be comprised in the MAC attached bag head of MAC PDU.

In the present embodiment, information unit can be media access control layer service data unit MAC SDU or media access control layer control element MAC CE, do not do concrete restriction herein, after all MAC SDU and MAC CE and before fill area, or after all MAC attached bag heads and before all MAC SDU and MAC CE, comprise source ID and object ID, in the MAC PDU that first user equipment receives, source ID is the ID of the second subscriber equipment, and object ID is the ID of the ID of first user equipment or the communication group residing for first user equipment.

402, first user equipment judges the Information Element format version number information whether the Information Element format version number information in each Destination MAC attached bag head is supported for self, if, the information unit determining Destination MAC attached bag head correspondence is effective information unit, if not, then the information unit determining Destination MAC attached bag head correspondence is the information unit that first user equipment is not supported;

First user equipment can identify MAC PDU Information Element format version number information, according to MAC PDU Information Element format version number information, determine the effective information unit in MAC PDU after receiving the MAC PDU of the second subscriber equipment transmission.

It should be noted that, when comprising IP (Internet Protocol) the header compression algorithm information that the radio bearer RB (Radio Bearer) corresponding to MAC PDU information unit uses in the MAC attached bag head of MAC PDU, can also comprise before step 402: the IP header compression algorithm information of the radio bearer RB of first user equipment corresponding to MAC PDU information unit, determine IP header compression algorithm that the radio bearer RB corresponding to MAC PDU information unit uses whether by first user equipment is supported self.

In the present embodiment, the format version information of corresponding informance unit is set in the MAC attached bag head of each MAC PDU, avoid and adopt a MAC attached bag head or a byte to be MAC PDU format version information taking resource separately, decrease the expense of MAC PDU.

In embodiment shown in Fig. 3 or Fig. 4, first user equipment is after determining the effective information unit in MAC PDU, can judge whether include effective information unit in MAC PDU, receive effective information unit in MAC PDU, abandon the out of Memory unit in MAC PDU except effective information unit, refer to Fig. 5, in the embodiment of the present invention, another embodiment of communication means comprises:

501, first user equipment receives the MAC PDU that the second subscriber equipment sends;

In the present embodiment, second subscriber equipment sends MAC PDU to first user equipment, this MAC PDU is D2D MAC PDU, in this MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information, Destination MAC attached bag head in the corresponding MAC PDU of each information unit in this MAC PDU, each Destination MAC attached bag head comprises the Information Element format version number information of corresponding informance unit, preferably, the last position of each Destination MAC attached bag head or front two are described Information Element format version number information.

IP (Internet Protocol) the header compression algorithm information of the radio bearer RB (Radio Bearer) corresponding to MAC PDU information unit can also be comprised in the MAC attached bag head of MAC PDU.

In the present embodiment, information unit can be media access control layer service data unit MAC SDU or media access control layer control element MAC CE, does not do concrete restriction herein.

502, first user equipment judges the Information Element format version number information whether the Information Element format version number information in each Destination MAC attached bag head is supported for self, if, the information unit determining Destination MAC attached bag head correspondence is effective information unit, if not, then the information unit determining Destination MAC attached bag head correspondence is the information unit that first user equipment is not supported;

First user equipment can identify MAC PDU Information Element format version number information, according to MAC PDU Information Element format version number information, determine the effective information unit in MAC PDU after receiving the MAC PDU of the second subscriber equipment transmission.

503, first user equipment judges whether include effective information unit in MAC PDU, if so, then performs step 504, if not, then performs step 505;

After first user equipment judges the Information Element format version number information whether the Information Element format version number information in MAC PDU in all Destination MAC attached bag heads is supported for self in step 502, judge whether include effective information unit in MAC PDU, if, then perform step 504, if not, then step 505 is performed.

504, first user equipment receives the effective information unit in MAC PDU, abandons the out of Memory unit in MAC PDU except effective information unit;

First user equipment, when determining to include effective information unit in MAC PDU, receives the effective information unit in MAC PDU, abandons the out of Memory unit in MAC PDU except effective information unit.

505, first user equipment abandons whole MAC PDU.

The whole MAC PDU received, when determining do not have effective information unit in MAC PDU, directly abandons by first user equipment.

In the present embodiment, the format version information of corresponding informance unit is set in the MAC attached bag head of each MAC PDU, avoid and adopt a MAC attached bag head or a byte to be MAC PDU format version information taking resource separately, decrease the expense of MAC PDU;

Secondly, first user equipment choice receives the MAC PDU information unit useful to oneself, and namely effective information unit, reduces resource consumption.

Be described communication means the embodiment of the present invention from the angle of opposite side (the second user equipment side) below, refer to Fig. 6, in the embodiment of the present invention, another embodiment of communication means comprises:

601, the second subscriber equipment sends application radio resource request to serving BS;

When the second subscriber equipment needs the mode that communicated by D2D to first user equipment sending data, application radio resource request can be sent to the serving BS of its correspondence, distribute the Radio Resource of transmission MAC PDU to described second subscriber equipment to make described serving BS.

602, the second subscriber equipment receives the wireless resource information that described serving BS sends;

When serving BS distributing radio resource is to the second subscriber equipment, wireless resource information can be sent to the second subscriber equipment;

603, the wireless resource information of serving BS transmission described in the second subscriber equipment, sends MAC PDU to first user equipment;

In the present embodiment, can be that the front n position of first character joint is MAC PDU format version information in described MAC PDU, 1≤n < 8, or in described MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information.

In the present embodiment, the front n position of the first character of MAC PDU joint is adopted to be that in MAC PDU format version information or MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information, avoid and adopt a MAC attached bag head or a byte to be MAC PDU format version information taking resource separately, decrease the expense of MAC PDU, secondly to serving Base Station requests for sending the Radio Resource of described MAC PDU time, use the targeting sequencing arrived in the targeting sequencing Preamble group of setting, reduce the wasting of resources.

In embodiment shown in Fig. 6, second subscriber equipment sends application radio resource request to serving BS and comprises: the second subscriber equipment selects targeting sequencing Preamble group according to pre-defined rule, sends the targeting sequencing in the targeting sequencing Preamble group selected to serving BS.

Wherein, the second subscriber equipment selects targeting sequencing Preamble group according to pre-defined rule, sends the targeting sequencing in the targeting sequencing Preamble group selected, have multiple implementation, make an explanation below in conjunction with specific embodiment to serving BS:

One, the targeting sequencing group A of serving BS configuration selected by the second subscriber equipment, sends the targeting sequencing in targeting sequencing group A to described serving BS;

Refer to Fig. 7, in the embodiment of the present invention, another embodiment of communication means comprises:

701, the targeting sequencing group A of serving BS configuration selected by the second subscriber equipment, sends the targeting sequencing in targeting sequencing group A to described serving BS;

When the second subscriber equipment needs the mode that communicated by D2D to first user equipment sending data, application radio resource request can be sent to the serving BS of its correspondence, distribute the Radio Resource of transmission MAC PDU to described second subscriber equipment to make described serving BS.

When subscriber equipment uses random access procedure application resource for sending data, the serving BS of subscriber equipment configures two targeting sequencing Preamble groups, targeting sequencing group A and targeting sequencing group B.

At present, when the data volume that subscriber equipment will send is greater than certain specific threshold, subscriber equipment uses the targeting sequencing in targeting sequencing group B, otherwise use the targeting sequencing in targeting sequencing group A, after the serving BS of subscriber equipment receives the targeting sequencing in targeting sequencing group B, distribute to the data that the more ascending resource of described subscriber equipment transmits described subscriber equipment, but because described subscriber equipment needs the data sent also to comprise the D2D data sending to other subscriber equipmenies except the upstream data sending to serving BS, and D2D data can not send on ascending resource, therefore the method for above-mentioned selection targeting sequencing group is adopted, the serving BS of subscriber equipment may be caused to distribute too much ascending resource to described subscriber equipment, thus cause the waste of resource.

In the present embodiment, the targeting sequencing group A selecting serving BS configuration fixed by the second subscriber equipment, sends the targeting sequencing in targeting sequencing group A, to serving BS application Radio Resource to described serving BS.

702, the second subscriber equipment receives the wireless resource information that described serving BS sends;

After serving BS receives the targeting sequencing in the targeting sequencing group A of the second subscriber equipment transmission, distributing radio resource can give the second subscriber equipment, send wireless resource information to the second subscriber equipment;

703, the wireless resource information of the second subscriber equipment serving BS transmission, sends MAC PDU to first user equipment;

In the present embodiment, can be that the front n position of first character joint is MAC PDU format version information in described MAC PDU, 1≤n < 8, or in described MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information.

(1) can n position when being MAC PDU format version information before first character joint in MAC PDU, when MAC PDU format version informational needs take more multibyte time, MAC PDU format version information can take more multidigit in first character joint in MAC PDU, as when in MAC PDU, the last position of first character joint is MAC PDU format version information, as 0 represents version 0, 1 represents version 1, when MAC PDU has larger version, can be in MAC PDU first character joint the first two position be MAC PDU format version information, as 00 represents version 0, 01 represents version 1, in like manner increase progressively successively, as 000 represents version 0, 001 represents version 1 etc., present stage, MAC PDU format version information uses 1 or 2 bit representations, therefore preferred, the last position that in MAC PDU, first character saves or the first two position are MAC PDU format version information, do not do concrete restriction herein.

At first MAC attached bag head in MAC PDU during foremost, the first character joint in MAC PDU can be the first character joint in MAC PDU in first MAC attached bag head, does not now do concrete restriction.

It should be noted that, other except MAC PDU format version information of first character joint in MAC PDU can be the identification information of the second subscriber equipment, the identification information of MAC PDU format version information and the second subscriber equipment is made to share a byte, economize on resources, do not do concrete restriction herein.

(2) when in MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information, each information unit in this MAC PDU can Destination MAC attached bag head in a corresponding MAC PDU, front n position in each Destination MAC attached bag head is the Information Element format version number information of corresponding informance unit, 1≤n < 8, preferably, the last position of each Destination MAC attached bag head or front two are described Information Element format version number information.

Information Element format version number information need take more multibyte time, Information Element format version number information can take more multidigit in each Destination MAC attached bag head, as the last position in each Destination MAC attached bag head be Information Element format version number information time, as 0 represents version 0, 1 represents version 1, when information unit has larger version number, can be the first two position in each Destination MAC attached bag head be Information Element format version number information, as 00 represents version 0, 01 represents version 1, in like manner increase progressively successively, as 000 represents version 0, 001 represents version 1 etc., present stage, Information Element format version number information uses 1 or 2 bit representations, therefore preferred, last position in each Destination MAC attached bag head or the first two position are Information Element format version number information, do not do concrete restriction herein.

Be understandable that, in a MAC PDU, Information Element format version number information in different target MAC attached bag head can take different figure places according to Information Element format version number information, as in a MAC PDU, there is the information unit of version number 0, the information unit of version 2 number, in then corresponding Destination MAC attached bag head, version is 0, can take the last position in Destination MAC attached bag head, namely represents with 0, version number is 2, the first two position in Destination MAC attached bag head can be taken, namely 11, not do concrete restriction herein.

IP (Internet Protocol) the header compression algorithm information of the radio bearer RB (Radio Bearer) corresponding to MAC PDU information unit can also be comprised in the MAC attached bag head of MAC PDU.

In the present embodiment, information unit can be media access control layer service data unit MAC SDU or media access control layer control element MAC CE, do not do concrete restriction herein, after all MAC SDU and MAC CE and before fill area, or after all MAC attached bag heads and before all MAC SDU and MAC CE, comprise source ID and object ID, in the MAC PDU that first user equipment receives, source ID is the ID of the second subscriber equipment, and object ID is the ID of the ID of first user equipment or the communication group residing for first user equipment.

In the present embodiment, the front n position of the first character of MAC PDU joint is adopted to be that in MAC PDU format version information or MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information, avoid and adopt a MAC attached bag head or a byte to be MAC PDU format version information taking resource separately, decrease the expense of MAC PDU, secondly to serving Base Station requests for sending the Radio Resource of described MAC PDU time, use the targeting sequencing arrived in the targeting sequencing Preamble group of setting, reduce the wasting of resources;

Secondly, the fixing targeting sequencing group A selecting serving BS configuration, sends the targeting sequencing in targeting sequencing group A to described serving BS, to serving BS application Radio Resource, decreases the wasting of resources.

Two, the second subscriber equipment judges whether that the data volume simultaneously meeting self other upstream data except D2D data to be sent is greater than the first pre-determined threshold, and the link load between described second subscriber equipment and described serving BS is less than the second pre-determined threshold, if, then select the targeting sequencing group B that described serving BS configures, the targeting sequencing in described targeting sequencing group B is sent to described serving BS, if not, then select the targeting sequencing group A that described serving BS configures, send the targeting sequencing in described targeting sequencing group A to described serving BS;

Refer to Fig. 8, in the embodiment of the present invention, another embodiment of communication means comprises:

801, the second subscriber equipment judges whether the data volume of other upstream datas except D2D data that self is to be sent is greater than the first pre-determined threshold, if so, then performs step 802, if not, then performs step 804;

When subscriber equipment uses random access procedure application resource for sending data, the serving BS of subscriber equipment configures two targeting sequencing Preamble groups, targeting sequencing group A and targeting sequencing group B.

Before the second subscriber equipment sends application radio resource request to serving BS, second subscriber equipment can know the data volume size except D2D data that self is to be sent, and need the data volume size of the upstream data except D2D data sent, first pre-determined threshold of the second subscriber equipment meeting preliminary setting data amount, thus judge whether the data volume of other upstream datas except D2D data that self is to be sent is greater than the first pre-determined threshold.

802, the second subscriber equipment judges whether the link load between self and described serving BS is less than the second pre-determined threshold, if so, then performs step 803, if not, then performs step 804;

Before the second subscriber equipment sends application radio resource request to serving BS, second subscriber equipment can know the link load between the second subscriber equipment self and described serving BS, according to the second pre-determined threshold of the data volume preset, judge whether the link load between self and described serving BS is less than the second pre-determined threshold.

803, the second subscriber equipment targeting sequencing group B of selecting described serving BS to configure, sends the targeting sequencing in described targeting sequencing group B to described serving BS;

Judge that the data volume simultaneously meeting self other upstream data except D2D data to be sent is greater than the first pre-determined threshold at the second subscriber equipment, and the link load between described second subscriber equipment and described serving BS is when being less than the second pre-determined threshold, the targeting sequencing group B that second subscriber equipment selects described serving BS to configure, sends the targeting sequencing in described targeting sequencing group B to described serving BS.

804, the second subscriber equipment targeting sequencing group A of selecting described serving BS to configure, sends the targeting sequencing in described targeting sequencing group A to described serving BS;

The data volume meeting self other upstream data except D2D data to be sent when the second subscriber equipment judges different is greater than the first pre-determined threshold, and the link load between described second subscriber equipment and described serving BS is when being less than the second pre-determined threshold, the targeting sequencing group A that second subscriber equipment selects described serving BS to configure, sends the targeting sequencing in described targeting sequencing group A to described serving BS.

805, the second subscriber equipment receives the wireless resource information that described serving BS sends;

After serving BS receives the targeting sequencing (targeting sequencing in targeting sequencing group A described above or the targeting sequencing in targeting sequencing group B) of the second subscriber equipment transmission, distributing radio resource can give the second subscriber equipment, send wireless resource information to the second subscriber equipment;

806, the wireless resource information that sends according to serving BS of the second subscriber equipment, sends MAC PDU to first user equipment;

In the present embodiment, in described MAC PDU can be first character joint front n position be MAC PDU format version information, 1≤n < 8, or MAC attached bag head comprises MAC PDU Information Element format version number information in described MAC PDU, this MAC PDU format version information or MAC PDU Information Element format version number information specifically can refer to the content of middle description embodiment illustrated in fig. 7.

In the present embodiment, the front n position of the first character of MAC PDU joint is adopted to be that in MAC PDU format version information or MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information, avoid and adopt a MAC attached bag head or a byte to be MAC PDU format version information taking resource separately, decrease the expense of MAC PDU, secondly to serving Base Station requests for sending the Radio Resource of described MAC PDU time, use the targeting sequencing arrived in the targeting sequencing Preamble group of setting, reduce the wasting of resources;

Secondly, avoiding the second subscriber equipment needs the data sent except the upstream data sending to base station, also comprise the D2D data sending to other subscriber equipmenies, and when D2D data can not send on ascending resource, the wasting of resources caused.

Introduce the embodiment of the first user equipment in the embodiment of the present invention below (in each embodiment of the subscriber equipment that the embodiment of the present invention provides, the operation that described target UE realizes can with reference to the method in aforementioned approaches method embodiment performed by the second subscriber equipment), refer to Fig. 9, an embodiment of the first user equipment that the embodiment of the present invention provides comprises:

Receiving element 901, for the medium access control layer protocol data cell MAC PDU that receiving target subscriber equipment sends, in described MAC PDU, the front n position of first character joint is MAC PDU format version information, 1≤n < 8;

Processing unit 902, during for being the MAC PDU format version information self supported in described MAC PDU format version information, determines that described MAC PDU is effective MAC PDU.

Described processing unit 902 can also be used for, when described MAC PDU format version information is the MAC PDU format version information self do not supported, abandoning described MAC PDU.

Preferably, the last position that in described MAC PDU, first character saves or the first two position are described MAC PDU format version information.

Preferably, the first character joint in described MAC PDU is the first character joint in described MAC PDU in first MAC attached bag head.

Preferably, other except MAC PDU format version information of first character joint in described MAC PDU is the identification information of described second subscriber equipment.

Refer to Figure 10, another embodiment of the first user equipment that the embodiment of the present invention provides comprises:

Receiving element 1001, for the MAC PDU that receiving target subscriber equipment sends, in described MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information;

Processing unit 1002, for according to described Information Element format version number information, determines the effective information unit in described MAC PDU.

Described processing unit 1002 specifically can also be used for the Destination MAC attached bag head in the corresponding described MAC PDU of each information unit in described MAC PDU, when described Destination MAC attached bag head comprises the Information Element format version number information of corresponding informance unit, judge the Information Element format version number information whether the Information Element format version number information in each Destination MAC attached bag head is supported for self, if so, the information unit determining Destination MAC attached bag head correspondence is effective information unit.

Described processing unit 1002 can also be used for judging whether include effective information unit in described MAC PDU, if not, then abandon described MAC PDU, if, then receive the effective information unit in described MAC PDU, abandon the out of Memory unit except described effective information unit in described MAC PDU.

Preferably, the last position of described Destination MAC attached bag head or front two are described Information Element format version number information.

Preferably, described information unit is media access control layer service data unit MAC SDU or media access control layer control element MAC CE.

Introduce the embodiment of the second subscriber equipment in the embodiment of the present invention below (in each embodiment of the subscriber equipment that the embodiment of the present invention provides, the operation that described target UE realizes can with reference to the method in aforementioned approaches method embodiment performed by first user equipment), refer to Figure 11, an embodiment of the second subscriber equipment that the embodiment of the present invention provides comprises:

Transmitting element 1101, for sending application radio resource request to serving BS, distributes the Radio Resource of transmission MAC PDU to described subscriber equipment to make described serving BS;

Receiving element 1102, for receiving the wireless resource information that described serving BS sends;

Described transmitting element 1101, also for the wireless resource information that described serving BS sends, sends MAC PDU to target UE; In described MAC PDU, the front n position of first character joint is MAC PDU format version information, and n is more than or equal to 1 and is less than 8, or in described MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information.

Described transmitting element 1101 specifically can also be used for selecting targeting sequencing Preamble group according to pre-defined rule, sends the targeting sequencing in the targeting sequencing Preamble group selected.

Described transmitting element 1101 specifically can also be used for the targeting sequencing sent in the targeting sequencing group A of described serving BS configuration.

The data volume that described transmitting element 1101 specifically can also be used for judging whether to meet described subscriber equipment other upstream datas except D2D data to be sent is simultaneously greater than the first pre-determined threshold, and the link load between described subscriber equipment and described serving BS is less than the second pre-determined threshold, if, then send the targeting sequencing of the targeting sequencing group B of described serving BS configuration, if not, then the targeting sequencing of the targeting sequencing group A of described serving BS configuration is sent.

Receiving element described in Fig. 9 to Figure 11 can be specifically receiver, and transmitting element can be reflector, and processing unit can be processor, is not construed as limiting herein.

Those skilled in the art can be well understood to, and for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.

In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.

The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.

If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. various can be program code stored medium.

The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (28)

1. a communication means, it is levied and is, comprising:

First user equipment receives the medium access control layer protocol data cell MAC PDU that the second subscriber equipment sends, and in described MAC PDU, the front n position of first character joint is MAC PDU format version information, and n is more than or equal to 1 and is less than 8;

Described first user equipment, when described MAC PDU format version information is the MAC PDU format version information self supported, determines that described MAC PDU is effective MAC PDU.

2. method according to claim 1, is characterized in that,

Described first user equipment, when described MAC PDU format version information is the MAC PDU format version information self do not supported, abandons described MAC PDU.

3. method according to claim 1 and 2, is characterized in that,

The last position that in described MAC PDU, first character saves or the first two position are described MAC PDU format version information.

4., according to described method arbitrary in claims 1 to 3, it is characterized in that,

First character joint in described MAC PDU is the first character joint in described MAC PDU in first MAC attached bag head.

5., according to described method arbitrary in claims 1 to 3, it is characterized in that,

Other except MAC PDU format version information of first character joint in described MAC PDU is the identification information of described second subscriber equipment.

6. a communication means, is characterized in that, comprising:

First user equipment receives the MAC PDU that the second subscriber equipment sends, and in described MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information;

Described first user equipment, according to described Information Element format version number information, determines the effective information unit in described MAC PDU.

7. method according to claim 6, is characterized in that,

Destination MAC attached bag head in the corresponding described MAC PDU of each information unit in described MAC PDU, described Destination MAC attached bag head comprises the Information Element format version number information of corresponding informance unit;

Described first user equipment, according to described Information Element format version number information, determines that the effective information unit in described MAC PDU comprises:

Described first user equipment judges the Information Element format version number information whether the Information Element format version number information in each Destination MAC attached bag head is supported for self, if so, determines that the information unit of Destination MAC attached bag head correspondence is effective information unit.

8. the method according to claim 6 or 7, is characterized in that,

Described method also comprises:

Described first user equipment judges whether include effective information unit in described MAC PDU, if not, then abandon described MAC PDU, if, then receive the effective information unit in described MAC PDU, abandon the out of Memory unit except described effective information unit in described MAC PDU.

9., according to described method arbitrary in claim 6 to 8, it is characterized in that,

The last position of described Destination MAC attached bag head or front two are described Information Element format version number information.

10., according to described method arbitrary in claim 6 to 9, it is characterized in that,

Described information unit is media access control layer service data unit MAC SDU or media access control layer control element MAC CE.

11. 1 kinds of communication meanss, is characterized in that, comprising:

Second subscriber equipment sends application radio resource request to serving BS, distributes the Radio Resource of transmission MAC PDU to described second subscriber equipment to make described serving BS;

Described second subscriber equipment receives the wireless resource information that described serving BS sends;

The wireless resource information that described second subscriber equipment sends according to described serving BS, sends MAC PDU to first user equipment;

In described MAC PDU, the front n position of first character joint is MAC PDU format version information, and n is more than or equal to 1 and is less than 8,

Or MAC attached bag head comprises MAC PDU Information Element format version number information in described MAC PDU.

12. methods according to claim 11, is characterized in that, described second subscriber equipment sends application radio resource request to serving BS and comprises:

Described second subscriber equipment selects targeting sequencing Preamble group according to pre-defined rule, sends the targeting sequencing in the targeting sequencing Preamble group selected to described serving BS.

13. methods according to claim 12, is characterized in that, described second subscriber equipment selects targeting sequencing Preamble group according to pre-defined rule, and the targeting sequencing sent in the targeting sequencing Preamble group selected comprises:

The targeting sequencing group A that described second subscriber equipment selects described serving BS to configure, sends the targeting sequencing in targeting sequencing group A to described serving BS.

14. methods according to claim 12, is characterized in that, described second subscriber equipment selects targeting sequencing Preamble group according to pre-defined rule, and the targeting sequencing sent in the targeting sequencing Preamble group selected comprises:

Described second subscriber equipment judges whether that the data volume simultaneously meeting self other upstream data except D2D data to be sent is greater than the first pre-determined threshold, and the link load between described second subscriber equipment and described serving BS is less than the second pre-determined threshold, if, then select the targeting sequencing group B that described serving BS configures, the targeting sequencing in described targeting sequencing group B is sent to described serving BS, if not, then select the targeting sequencing group A that described serving BS configures, send the targeting sequencing in described targeting sequencing group A to described serving BS.

15. 1 kinds of subscriber equipmenies, is characterized in that, comprising:

Receiving element, for the medium access control layer protocol data cell MAC PDU that receiving target subscriber equipment sends, in described MAC PDU, the front n position of first character joint is MAC PDU format version information, and n is more than or equal to 1 and is less than 8;

Processing unit, during for being the MAC PDU format version information self supported in described MAC PDU format version information, determines that described MAC PDU is effective MAC PDU.

16. subscriber equipmenies according to claim 15, is characterized in that, described processing unit also for when described MAC PDU format version information is the MAC PDU format version information self do not supported, abandons described MAC PDU.

17. subscriber equipmenies according to claim 15 or 16, is characterized in that, in described MAC PDU, the last position of first character joint or the first two position are described MAC PDU format version information.

18., according to claim 15 to described subscriber equipment arbitrary in 17, is characterized in that, the first character joint in described MAC PDU is the first character joint in first MAC attached bag head in described MAC PDU.

19., according to claim 15 to described subscriber equipment arbitrary in 17, is characterized in that, other except MAC PDU format version information of the first character joint in described MAC PDU is the identification information of described second subscriber equipment.

20. 1 kinds of subscriber equipmenies, is characterized in that, comprising:

Receiving element, for the MAC PDU that receiving target subscriber equipment sends, in described MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information;

Processing unit, for according to described Information Element format version number information, determines the effective information unit in described MAC PDU.

21. subscriber equipmenies according to claim 20, it is characterized in that, described processing unit is specifically for the Destination MAC attached bag head in the corresponding described MAC PDU of each information unit in described MAC PDU, when described Destination MAC attached bag head comprises the Information Element format version number information of corresponding informance unit, judge the Information Element format version number information whether the Information Element format version number information in each Destination MAC attached bag head is supported for self, if so, the information unit determining Destination MAC attached bag head correspondence is effective information unit.

22. subscriber equipmenies according to claim 20 or 21, it is characterized in that, described processing unit is also for judging whether include effective information unit in described MAC PDU, if not, then abandon described MAC PDU, if so, then receive the effective information unit in described MAC PDU, abandon the out of Memory unit except described effective information unit in described MAC PDU.

23. according to described subscriber equipment arbitrary in right 20 to 22, and it is characterized in that, the last position of described Destination MAC attached bag head or front two are described Information Element format version number information.

24. according to described subscriber equipment arbitrary in right 20 to 23, and it is characterized in that, described information unit is media access control layer service data unit MAC SDU or media access control layer control element MAC CE.

25. 1 kinds of subscriber equipmenies, is characterized in that, comprising:

Transmitting element, for sending application radio resource request to serving BS, distributes the Radio Resource of transmission MAC PDU to described subscriber equipment to make described serving BS;

Receiving element, for receiving the wireless resource information that described serving BS sends;

Described transmitting element, also for the wireless resource information that described serving BS sends, sends MAC PDU to target UE; In described MAC PDU, the front n position of first character joint is MAC PDU format version information, and n is more than or equal to 1 and is less than 8, or in described MAC PDU, MAC attached bag head comprises MAC PDU Information Element format version number information.

26. subscriber equipmenies according to claim 25, is characterized in that, described transmitting element, specifically for selecting targeting sequencing Preamble group according to pre-defined rule, sends the targeting sequencing in the targeting sequencing Preamble group selected.

27. subscriber equipmenies according to claim 26, is characterized in that, described transmitting element is specifically for sending the targeting sequencing in the targeting sequencing group A of described serving BS configuration.

28. subscriber equipmenies according to claim 26 or 27, it is characterized in that, described transmitting element is specifically for judging whether that the data volume meeting described subscriber equipment other upstream datas except D2D data to be sent is greater than the first pre-determined threshold simultaneously, and the link load between described subscriber equipment and described serving BS is less than the second pre-determined threshold, if, then send the targeting sequencing of the targeting sequencing group B of described serving BS configuration, if not, then the targeting sequencing of the targeting sequencing group A of described serving BS configuration is sent.