Method and device for sending and receiving information
A technology for information sending and receiving and terminal equipment, applied in the field of communication, it can solve the problems of system performance degradation and inability to accurately express signal characteristics, and achieve the effect of improving performance
Active Publication Date: 2022-02-08
HUAWEI TECH CO LTD
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Problems solved by technology
[0005] The present application provides a method and device for sending and receiving information, so as to solve the problem that the downlink reference information in the prior art cannot accurately express the characteristics of the signal on the uplink carrier, which will lead to the performance degradation of the system in the coexistence scenario of NR and LTE The problem
Method used
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Embodiment approach
[0206] The first implementation mode, Figure 12 Signaling for random access of terminal equipment in yet another information sending and receiving method provided by the embodiment of this application Figure 1 ,Such as Figure 12 As shown, the method includes:
[0207] S51. The network device sends a broadcast message on the first downlink carrier.
[0208] Wherein, the broadcast message includes second downlink configuration information corresponding to the second downlink carrier and first uplink configuration information corresponding to the first uplink carrier, wherein the first uplink configuration information includes the first uplink configuration information of the first uplink carrier. Frequency point information, and random access configuration information of the first uplink carrier.
[0209] S52. The terminal device performs random access on the first uplink carrier according to random access configuration information of the first uplink carrier.
[0210] He...
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An embodiment of the present application provides an information sending and receiving method and device, including: a terminal device receives a broadcast message sent by a network device on a first downlink carrier, wherein the broadcast message includes second downlink configuration information corresponding to a second downlink carrier ; Wherein, the second downlink configuration information includes the second downlink frequency point information and / or physical cell identification information of the second downlink carrier; the first downlink carrier and the second uplink carrier belong to the serving carrier of the terminal device, and the second downlink The carrier does not belong to the serving carrier of the terminal device; the second downlink carrier and the second uplink carrier are system-level paired carriers. The LTE low-frequency downlink carrier configuration information carried on the NR high-frequency downlink carrier is used to transmit signals on the LTE low-frequency uplink carrier, which helps to improve system performance in the coexistence scenario of NR and LTE.
Description
technical field [0001] The present application relates to communication technologies, and in particular to a method and device for sending and receiving information. Background technique [0002] With the continuous development of communication technology, research and standardization work on the fifth generation mobile communication technology (5th-Generation, 5G) has begun. From the perspective of 5G compatibility, 5G compatibility is divided into two scores, one is compatible with the continuous evolution of Long Term Evolution (LTE) 4G, and the other is New Radio (NR, NR) that is not compatible with LTE. )system. Among them, NR systems are generally deployed at high frequency points, such as 3.5GHz or even 28GHz. Therefore, network equipment can send downlink signals on NR high-frequency downlink carriers, and network equipment needs to use large-scale antenna arrays to achieve high-gain beamforming to enhance the coverage of downlink signals. The terminal device can ...
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IPC IPC(8): H04W72/04H04W74/00H04L5/00
CPCH04L5/0048H04L5/0094H04W72/0453H04W74/006H04W72/23H04W74/0833
Inventor 官磊
Owner HUAWEI TECH CO LTD