Signal transmission method and device
A signal transmission and signal technology, which is applied to the separation device of transmission path, wireless communication, signaling distribution, etc., can solve the problems of low utilization rate of time-frequency resources, waste of resources, adverse effects of data transmission delay of terminal equipment, etc. The effect of reducing the time of uplink data transmission
Active Publication Date: 2021-11-19
HUAWEI TECH CO LTD
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Problems solved by technology
[0003] However, in the LTE system, the terminal device can only send the uplink scheduling request in the time-frequency resources pre-allocated to the terminal for sending the uplink scheduling request
If the time-frequency resources pre-allocated to the terminal device for sending the uplink scheduling request are less, it is likely to cause the terminal device to send the uplink scheduling request after a long time after generating the uplink transmission demand, thus It has an adverse impact on the data transmission delay of the terminal device; but if more time-frequency resources are pre-allocated to the terminal device for sending uplink scheduling requests, then it will cause the time-frequency resources allocated for sending uplink scheduling requests Low utilization, resulting in unnecessary waste of resources
Method used
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[0023] The terminal device involved in the embodiment of the present invention may be a device that provides voice and / or data connectivity to users, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. The wireless terminal can communicate with one or more core networks via a radio access network (RAN for short), and the wireless terminal can be a mobile terminal, such as a mobile phone (or called a "cellular" phone) and a mobile phone with a mobile terminal. Computers, for example, may be portable, pocket, handheld, built-in, or vehicle-mounted mobile devices that exchange voice and / or data with the radio access network. For example, a personal communication service (personal communication service, PCS for short) phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP for short) phone, a wireless local loop (wireless local loop, WLL for short) station, a personal digital assistant ( ...
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The present application discloses a signal sending method and device. The method includes: the first terminal device determines the first signal to be sent and determines the first time-frequency resource, wherein a part or all of the first time-frequency resource is the second time-frequency resource. The second time-frequency resource is a time-frequency resource for sending the second signal; the first terminal device uses the first time-frequency resource to send the first signal; wherein, the first time-frequency resource includes time-frequency resources not occupied by the second signal The idle time-frequency resource, and / or, the first time-frequency resource includes a shared time-frequency resource occupied by the second signal, and the first signal and the second signal are orthogonal within the shared time-frequency resource. By adopting the technical solution provided by this application, the first terminal device can confirm the uplink resources for signal transmission after generating the demand for sending uplink signals, thereby effectively reducing the time from the occurrence of the demand for uplink data transmission to the actual start of uplink data transmission. time.
Description
technical field [0001] The present application relates to the field of wireless communication, and in particular to a signal sending method and device. Background technique [0002] In a wireless communication system, after a terminal device generates an uplink transmission demand for sending uplink data to a network device, it first needs to wait for the time-frequency resource reserved for the terminal device for sending an uplink scheduling request, and then send an uplink scheduling request to the network device ; After receiving the scheduling request, the network device allocates time-frequency resources for data transmission to the terminal, and informs the terminal of the time-frequency resources allocated to the terminal device through uplink scheduling information; the terminal device obtains the uplink scheduling After receiving the information, use the time-frequency resource allocated by the network device to the terminal device for uplink data transmission. ...
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IPC IPC(8): H04W28/18H04W72/04
CPCH04W28/18H04W72/0446H04W72/0453H04W72/02H04W72/56H04L1/1657H04L5/0007H04L5/0021H04L5/0055H04L25/0226
Inventor 郭志恒谢信乾孙伟
Owner HUAWEI TECH CO LTD