Data transmission method and apparatus
First Claim
1. A data sending method, comprising:
- encapsulating, by a base station, media access control (MAC) payloads corresponding to a plurality of user equipments (UEs) in a MAC packet data unit (PDU), wherein the MAC PDU comprises a single MAC header associated with all of the plurality of UEs, a MAC payload section following the MAC header and comprising the MAC payloads without any additional MAC header, and identification information of each UE in the plurality of UEs, the MAC header comprises a plurality of contiguous subheaders, each subheader in the plurality of contiguous subheaders corresponds to one MAC payload of one UE in the plurality of UEs, each subheader in the plurality of contiguous subheaders that corresponds to a MAC control element (CE) has a R/R/E/LCID format and each subheader in the plurality of contiguous subheaders that corresponds to a MAC service data unit (SDU) has a R/R/E/LCID/F/L format, the MAC payloads comprise at least one kind of a MAC CE and a MAC SDU, and the identification information enables each UE to identify a MAC payload belonging to the UE; and
sending, by the base station, the MAC PDU to the plurality of UEs, the MAC PDU enabling each UE to retrieve a respective MAC payload,wherein all contents of each MAC payload in the MAC payload section are contiguous and the subheaders corresponding to each MAC payload are contiguous.
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Abstract
A data sending method is provided. Media access control MAC payloads corresponding to a plurality of user equipment (UEs) are encapsulated in one MAC packet data unit PDU, where the MAC PDU includes a header, the MAC payloads and identification information of each UE in the plurality of UEs; and the header includes a plurality of subheaders, the plurality of subheaders is subheaders respectively corresponding to a MAC payload corresponding to each UE in the plurality of UEs, the MAC payload corresponding to each UE includes a MAC control element CE and/or a MAC service data unit SDU, and the identification information is used for identifying each UE. The MAC PDU is sent. Correspondingly, a data receiving method and apparatus are also provided. In the foregoing solutions, transmission of a MAC PDU during multi-user cooperated communication is implemented.
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Citations
20 Claims
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1. A data sending method, comprising:
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encapsulating, by a base station, media access control (MAC) payloads corresponding to a plurality of user equipments (UEs) in a MAC packet data unit (PDU), wherein the MAC PDU comprises a single MAC header associated with all of the plurality of UEs, a MAC payload section following the MAC header and comprising the MAC payloads without any additional MAC header, and identification information of each UE in the plurality of UEs, the MAC header comprises a plurality of contiguous subheaders, each subheader in the plurality of contiguous subheaders corresponds to one MAC payload of one UE in the plurality of UEs, each subheader in the plurality of contiguous subheaders that corresponds to a MAC control element (CE) has a R/R/E/LCID format and each subheader in the plurality of contiguous subheaders that corresponds to a MAC service data unit (SDU) has a R/R/E/LCID/F/L format, the MAC payloads comprise at least one kind of a MAC CE and a MAC SDU, and the identification information enables each UE to identify a MAC payload belonging to the UE; and sending, by the base station, the MAC PDU to the plurality of UEs, the MAC PDU enabling each UE to retrieve a respective MAC payload, wherein all contents of each MAC payload in the MAC payload section are contiguous and the subheaders corresponding to each MAC payload are contiguous. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A data receiving method, comprising:
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receiving one media access control packet data unit (MAC PDU) encapsulating MAC payloads corresponding to a plurality of user equipment (UEs), wherein the MAC PDU comprises a single MAC header associated with all of the plurality of UEs, a MAC payload section following the MAC header and comprising the MAC payloads without any additional MAC header, and identification information of each UE in the plurality of UEs, the MAC header comprises a plurality of contiguous subheaders, each subheader in the plurality of contiguous subheaders corresponds to one MAC payload of one UE in the plurality of UEs, each subheader in the plurality of contiguous subheaders that corresponds to a MAC control element (CE) has a R/R/E/LCID format and each subheader in the plurality of contiguous subheaders that corresponds to a MAC service data unit (SDU) has a R/R/E/LCID/F/L format, the MAC payloads comprise at least one kind of a MAC CE and a MAC SDU, and the identification information enables each UE to identify a MAC payload belonging to the UE; and determining a UE and a MAC payload corresponding to the UE by parsing the MAC PDU according to the identification information of each UE and the MAC header in the MAC PDU; wherein all contents of each MAC payload in the MAC payload section are contiguous and the subheaders corresponding to each MAC payload are contiguous. - View Dependent Claims (10)
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11. A base station, comprising:
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a baseband processor, configured to encapsulate media access control (MAC) payloads corresponding to a plurality of user equipment (UEs) in a MAC packet data unit (PDU), wherein the MAC PDU comprises a single MAC header associated with all of the plurality of UEs, a MAC payload section following the MAC header and comprising the MAC payloads without any additional MAC header, and identification information of each UE in the plurality of UEs, the MAC header comprises a plurality of contiguous subheaders, each subheader in the plurality of contiguous subheaders corresponds to one MAC payload of one UE in the plurality of UEs, each subheader in the plurality of contiguous subheaders that corresponds to a MAC control element (CE) has a R/R/E/LCID format and each subheader in the plurality of contiguous subheaders that corresponds to a MAC service data unit (SDU) has a R/R/E/LCID/F/L format, the MAC payloads comprise at least one kind of a MAC CE and a MAC SDU, and the identification information enables each UE to identify a MAC payload belonging to the UE; and a transmitter, configured to send the MAC PDU encapsulated by the baseband processor to the plurality of UEs, the MAC PDU enabling each UE to retrieve a respective MAC payload, wherein all contents of each MAC payload in the MAC payload section are contiguous and the subheaders corresponding to each MAC payload are contiguous. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A user equipment, comprising:
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a receiver, configured to receive one media access control packet data unit (MAC PDU) which encapsulates MAC payloads corresponding to a plurality of user equipment (UEs), wherein the MAC PDU comprises a single MAC header associated with all of the plurality of UEs, a MAC payload section following the MAC header and comprising the MAC payloads without any additional MAC header, and identification information of each UE in the plurality of UEs, the MAC header comprises a plurality of contiguous subheaders, each subheader in the plurality of contiguous subheaders corresponds to one MAC payload of one UE in the plurality of UEs, each subheader in the plurality of contiguous subheaders that corresponds to a MAC control element (CE) has a R/R/E/LCID format and each subheader in the plurality of contiguous subheaders that corresponds to a MAC service data unit (SDU) has a R/R/E/LCID/F/L format, the MAC payloads comprise at least one kind of a MAC CE and a MAC SDU, and the identification information enables each UE to identify a MAC payload belonging to the UE; and a baseband processor, configured to determine a UE corresponding to a MAC payload by parsing the MAC PDU according to the identification information of each UE and the MAC header in the MAC PDU received by the receiver; wherein all contents of each MAC payload in the MAC payload section are contiguous and the subheaders corresponding to each MAC payload are contiguous. - View Dependent Claims (20)
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Specification