Transmission method of data package in time-division-synchronous CDMA access system
A technology of synchronous code division multiple access and transmission method, which is applied in the field of wireless communication, and can solve problems such as incompatibility between Node B and user equipment, inability to smoothly transition multi-carrier HSDPA service systems, and large changes in the physical layer.
Inactive Publication Date: 2009-02-04
TD TECH COMM TECH LTD
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However, under the multi-carrier HSDPA service solution proposed by ZTE Communications Co., Ltd. and Datang Mobile Co., Ltd., based on the association mode of the HS-SCCH, HS-SICH and HS-PDSCH, the nodes under the single-carrier HSDPA service The physical layer changes of B and user equipment are relatively large, which will bring certain difficulties to the realization of the multi-carrier HSDPA service solution, and the node B and user equipment under the single-carrier HSDPA service will not be able to communicate with the multi-carrier HSDPA service The Node B under the system is compatible with the user equipment, so that the 3GPP system supporting the single-carrier HSDPA service cannot be smoothly transitioned to the system supporting the multi-carrier HSDPA service
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[0018] figure 1A specific embodiment of the invention is shown. According to the data packet transmission method of the present invention, it is set in a TD-SCDMA system supporting single-carrier HSDPA services, in order to further upgrade the TD-SCDMA system supporting single-carrier HSDPA services to a system that can support multi-carrier HSDPA services , a cell in the system is configured with N carriers, N≥2; in the cell, a downlink data packet of a user equipment can be transmitted on the N carriers; then in the N carriers On each carrier, the downlink shared data channel HS-PDSCH, the downlink shared control channel HS-SCCH and the uplink shared information channel HS-SICH are set; HS-SCCH and HS-SICH are associated, that is, the offloading of downlink data packets is performed in the MAC layer; the HS-SCCH on one carrier transmits the user related to the transmission data packets in the HS-PDSCH on the same carrier Equipment identification (UEID), transport format a...
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The invention relates to a data pack transmission method of TD-SCDMA system. Wherein, in one TD-SCDMA system supporting single-carrier-wave HSDPA service, setting at least two carrier waves for one region of said system; in said region, transmitting the data pack on at least one carrier wave; each carrier wave is set with descending share data signal channel, descending share control signal channel and ascending share signal channel; the descending share data signal channel is only related to the descending share control signal channel and ascending signal channel in same carrier wave; in each carrier wave, the data pack is transmitted by the descending share data control signal channel and is controlled by relative descending share control signal channel and ascending share signal channel. The invention provides an upgrade method supporting multi-carrier HSDPA to the TD-SCDMA system that supports single-carrier HSDPA service, therefore, the node B and user device in single carrier HSDPA service can be compatible with the node B and user device under multi-carrier HSDPA service, to confirm their smooth transition.
Description
technical field [0001] The present invention relates to a wireless communication method, more specifically to a data packet (Data Packet) transmission method in a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA: Time Division-Synchronous Code Division Multiple Access) system . Background technique [0002] Based on user equipment (UE: User Equipment) requirements for high-speed packet data services (Packet Service) in the downlink (Downlink), the third generation wireless mobile communication standard 3GPP (3 rd Generation Partnership Project) introduced a High Speed Downlink Packet Access (HSDPA: High Speed Downlink Packet Access) service in Release 5. Under the HSDPA service, in view of the strong time-varying characteristics of the wireless channel, a link adaptation (Link Adaptation) mechanism will be introduced in the third-generation wireless mobile communication system to improve the utilization of wireless communication resources, thereby impr...
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IPC IPC(8): H04Q7/38H04W72/04H04W72/12
Inventor 沈东栋陈栋塔玛拉卡张力强宋爱惠齐丙花
Owner TD TECH COMM TECH LTD